HCD-ZX6/ZX8. SERVICE MANUAL Ver COMPONENT Hi-Fi STEREO SYSTEM. E Model. Sony Corporation SPECIFICATIONS

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1 SERVICE MANUAL Ver E Model are the tuner, deck, CD and amplifier section in FST-ZX6/ZX8. (Photo: HCD-ZX8) Model Name Using Similar Mechanism NEW CD CD Mechanism Type CDM79B-FBD8 Section Base Unit Name BU-FBD8A Optical Pick-up Name KSM-25DCP/C2RP TAPE Model Name Using Similar Machanism HCD-GN880 Section Tape Mechanism Type CWM43RR35 SPECIFICATIONS Amplifier section HCD-ZX8 Mexican models: The following measured at AC 27 V, 60 Hz DIN power output (rated): watts (6 ohms at khz, DIN) Continuous RMS power output (reference): watts (6 ohms at khz, 0% THD) Other models: The following measured at AC 20, 220, 240 V, 50/60 Hz DIN power output (rated): watts (6 ohms at khz, DIN) Continuous RMS power output (reference): watts (6 ohms at khz, 0% THD) HCD-ZX6 Mexican models: The following measured at AC 27 V, 60 Hz DIN power output (rated): watts (4 ohms at khz, DIN) Continuous RMS power output (reference): watts (4 ohms at khz, 0% THD) Other models: The following measured at AC 20, 220, 240 V, 50/60 Hz DIN power output (rated): watts (4 ohms at khz, DIN) Continuous RMS power output (reference): watts (4 ohms at khz, 0% THD) Inputs PHONO IN (phono jack): sensitivity 3 mv, impedance 47 kohms MIC (phone jack): sensitivity mv, impedance 0 kohms GAME INPUT AUDIO L/R (phono jacks): sensitivity 250 mv, impedance 47 kohms GAME INPUT VIDEO (phono jack): Vp-p, 75ohms VIDEO/MD IN L/R (phono jacks): sensitivity 250 mv/450 mv, impedance 47 kohms Continued on next page COMPONENT Hi-Fi STEREO SYSTEM I Sony Corporation Audio Group Published by Sony Engineering Corporation

2 Outputs PHONES (stereo phone jack): accepts headphones of 8 ohms or more VIDEO/MD OUT L/R (phono jacks): voltage 250 mv, impedance kohm VIDEO OUT (phono jack): max. output level Vp-p, load impedance 75 ohms FRONT SPEAKER: HCD-ZX8: FRONT L/R Use only the supplied speaker SS-ZX8 SURROUND L/R Use only the supplied speaker SS-ZX8 HCD-ZX6: FRONT L/R Use only the supplied speaker SS-ZX6 CD/MP3 player section System Compact disc and digital audio system Laser Semiconductor laser (λ=780 nm) Emission duration: continuous Laser Output Max µw* * This output is the value measured at a distance of 200 mm from the objective lens surface on the Optical Pick-up Block with 7 mm aperture. Frequency response 2 Hz 20 khz (±0.5 db) Wave length nm Signal-to-noise-ratio More than 90 db Dynamic range More than 90 db OPTICAL CD DIGITAL OUT (Square optical connector jack, rear panel) Wave length 660 nm Output level 8 dbm General Power requirements Mexican models: Other models: 27 V, 60 Hz 20 V, 220 V or V AC, 50/60 Hz Adjustable with voltage selector Power consumption HCD-ZX8: 330 watts HCD-ZX6: 240 watts Dimensions (w/h/d) (Main Unit) Approx mm Mass (Main Unit) HCD-ZX8: HCD-ZX6: Approx. 9.0 kg Approx. 8.0 kg Supplied accessories: AM loop antenna () FM lead antenna () Remote Commander () Batteries (2) Speaker cords: HCD-ZX6 only 2m (2) HCD-ZX8 only grey (0m) (2) white (3m) (2) Speaker pads: HCD-ZX6 only (8) HCD-ZX8 only (6) Design and specifications are subject to change without notice. Tape deck section Recording system 4-track 2-channel, stereo Frequency response 50 3,000 Hz (±3 db), using Sony TYPE I tapes Tuner section FM stereo, FM/AM superheterodyne tuner FM tuner section Tuning range Antenna Antenna terminals Intermediate frequency MHz (50 khz step) FM lead antenna 75 ohms unbalanced 0.7 MHz AM tuner section Tuning range Latin American models: 530,70 khz (with the tuning interval set at 0 khz) 53,70 khz (with the tuning interval set at 9 khz) Antenna AM loop antenna Antenna terminals External antenna terminal Intermediate frequency 450 khz SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. 2

3 Notes on Chip Component Replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be damaged by heat. Flexible Circuit Board Repairing Keep the temperature of soldering iron around 270 C during repairing. Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). Be careful not to apply force on the conductor when soldering or unsoldering. UNLEADED SOLDER Boards requiring use of unleaded solder are printed with the lead free mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size) NOTES ON LASER DIODE EMISSION CHECK The laser beam on this model is concentrated so as to be focused on the disc reflective surface by the objective lens in the optical pickup block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens. Laser component in this product is capable of emitting radiation exceeding the limit for Class. This appliance is claassified as a CLASS LASER product. This label is located on the rear exterior. : LEAD FREE MARK Unleaded solder has the following characteristics. Unleaded solder melts at a temperature about 40 C higher than ordinary solder. Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to about 350 C. Caution: The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful! Strong viscosity Unleaded solder is more viscou-s (sticky, less prone to flow) than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc. Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electrostatic breakdown because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic break-down and also use the procedure in the printed matter which is included in the repair parts. The flexible board is easily damaged and should be handled with care. 3

4 Ver. MODEL IDENTIFICATION BACK PANEL PLAYABLE DISC You can playback the following discs on this system. The other discs cannot be played back. Part No. List of playable discs Format of Disc logo discs Audio CDs Contents Audio CD-R/CD-RW (Audio CDs) Audio CD-R/CD-RW (Discs with MP3 audio tracks) Audio ZX8: MX ZX6: E2 ZX8: E5 ZX6: E5 ZX8: E2 MODEL PARTS No s s s s s Abbreviation E2 : 20 V AC area in E model E5 : 220 V AC area in E model MX : Mexican model 4

5 TABLE OF CONTENTS. SERVICE NOTE -. Service Position of CD BU Block Service Position of TC Mechanism, Panel Board Service Position of Power Board Service Position of CD Changer GENERAL List of Button Locations and Reference Pages DISASSEMBLY 3-. Case Loading Panel Front Panel Section Tape Mechanism Game-in/hp Board, Mic Board Back Panel Section CD Mechanism Section Main Board Table Assy SE-30 Board TD Belt DC Motor (M90) Optical Pick-up BD8A Board TEST MODE MECHANICAL ADJUSTMENTS ELECTRICAL ADJUSTMENTS DIAGRAMS 7-. Circuit Boards Location Note for Printed Wiring Boards and Schematic Diagrams Waveforms Printed Wiring Board BD Section Schematic Diagram BD Section Printed Wiring Boards Loading Section Schematic Diagram Loading Section Schematic Diagram Main Section (/4) Schematic Diagram Main Section (2/4) Schematic Diagram Main Section (3/4) Schematic Diagram Main Section (4/4) Printed Wiring Board Main Section Printed Wiring Boards Power Section Schematic Diagram Power Section (/2) Schematic Diagram Power Section (2/2) Printed Wiring Board Panel Section Schematic Diagram Panel Section Printed Wiring Boards Volume Section Printed Wiring Board Mic Section Schematic Diagram Volume, Mic Section Schematic Diagram Switch Section Printed Wiring Boards Switch Section (/2) Printed Wiring Boards Switch Section (2/2) Printed Wiring Boards Jack Section Schematic Diagram Jack Section Printed Wiring Board Surround Section Schematic Diagram Surround Section Printed Wiring Boards Transformer Section Schematic Diagram Transformer Section IC Block Diagrams IC Pin Descriptions EXPLODED VIEWS 8-. Back Panel Section Front Panel Section () Front Panel Section (2) Chassis Section CD Mechanism Section () CD Mechanism Section (2) ELECTRICAL PARTS LIST

6 SECTION SERVICE NOTE -. SERVICE POSITION OF CD BU BLOCK chassis CD block 6

7 -2. SERVICE POSITION OF TC MECHANISM, PANEL BOARD gear (shaft) 3 loading panel 2 Turn the gear (shaft) in the direction of the arrow. PANEL board tape mechanism block 7

8 -3. SERVICE POSITION OF POWER BOARD front panel assy CD mechanism block POWER board -4. SERVICE POSITION OF CD CHANGER CD mechanism block 8

9 SECTION 2 GENERAL This section is extracted from instruction manual. 9

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12 SECTION 3 DISASSEMBLY Note : Disassemble the unit in the order as shown below. SET 3-. CASE (Page 3) 3-2. LOADING PANEL (Page 3) 3-3. OPTICAL PICK-UP (Page 9) 3-4. BD8A BOARD (Page 20) 3-3. FRONT PANEL SECTION (Page 4) 3-6. BACK PANEL SECTION (Page 5) 3-4. TAPE MECHANISM (Page 4) 3-5. GAME-IN/HP BOARD, MIC BOARD (Page 5) 3-7. CD MECHANISM SECTION (Page 6) 3-8. MAIN BOARD (Page 7) 3-9. TABLE ASSY (Page 7) 3-0. SE-30 BOARD (Page 8) 3-2. DC MOTOR (M90) (Page 9) 3-. TD BELT (Page 8) 2

13 Note : Follow the disassembly procedure in the numerical order given. 3-. CASE 3 case (top) three claws 2 three screws (+BVTP3 x 8) 7 case three claws 6 three screws (case 3 TP2) 4 four screws (+BVTP3 x 8) 5 three screws (case 3 TP2) 3-2. LOADING PANEL gear (shaft) 3 loading panel 2 Turn the gear (shaft) in the direction of the arrow. 3

14 3-3. FRONT PANEL SECTION 2 CN04 (3P) 0 screw (+BVTP3 x 8) 4 CN920 (3P) 3 CN507 (2P) lug qf front panel section 5 connector (3P) MAIN board two hooks dust sheet two holes qa three screws (+BVTP3 x 8) qs two screws (+BVTP3 x 8) 9 CN80 (4P) 8 CN803 (3P) 7 CN802 (2P) 6 connector (6P) qd three screws (+BVTP3 x 8) 3-4. TAPE MECHANISM 4 tape mechanism 3 three screws (+BVTP2.6 x 8) 2 two screws (+BVTP2.6 x 8) lid (TC) lug 4

15 3-5. GAME-IN/HP BOARD, MIC BOARD qa two clips 8 four screws (+BVTP2.6 x 8) qd MIC board 6 two screws (+BVTP2.6 x 8) 7 GAME-IN/HP board qs screw (+BVTP2.6 x 8) 0 knob (MIC) 3 four screws (+BVTP2.6 x 8) 4 bracket (game) 9 bracket (MIC) 5 clip two screws (+BVTP2.6 x 8) 2 bracket (center) two lugs 3-6. BACK PANEL SECTION 2 CN002 (2P) CN504 (P) 6 two screws (+BVTP3 x 8) 5 two screws (+BVTP3 x 8) 3 CN004 (4P) 4 CN000 (3P) 7 two screws (+BVTP3 x 8) 8 two screws (+BVTP3 x 8) 9 three screws (+BVTP3 x 8) qa four screws (+BVTP3 x 8) qd 0 two screws (+BVTP3 x 8) qs three screws (+BVTP3 x 8) qf CN53 (3P) qg back panel section 5

16 3-7. CD MECHANISM SECTION 2 CN50 (27P) 5 three screws (+BVTP3 x 8) 6 7 chassis section CN509 (P) 6 4 two screws (+BVTP3 x 8) 3 two screws (+BVTP3 x 8) 8 two screws (+BVTP3 x 8) 9 two screws (+BVTP3 x 8) 0 CD mechanism section 6

17 3-8. MAIN BOARD CN502 (4P) 5 6 MAIN board CN60 CN602 4 two screws (+BVTP3 x 8) 3 CN509 (P) 2 CN50 (27P) 3-9. TABLE ASSY floating screw (+PTPWH M2.6) 2 tray qs table assy 7 screw (+BTP2.6 x 8) 6 CN002 (6P) 3 two screws (+BTP2.6 x 8) 5 qa 8 screw (+BTP2.6 x 8) 4 bracket claw 9 0 plate (guide) 7

18 3-0. SE-30 BOARD 6 SE-30 board 4 two screws (+BTP2.6 x 8) 5 CN0 (6P) CN02 (2P) 3 claw 2 claw 3-. TD BELT two screws (+BTP2.6 x 8) 5 TD unit assy 4 TD belt 2 two screws (+P3 x 3) 3 TD motor assy table assy 8

19 3-2. DC MOTOR (M90) 6 DC motor (M90) 5 CN004 (2P) 3 belt (loading) 2 gear (loading A) 4 two screws (+P2.6 x 4) screw (+PTPWH M2.6) 3-3. OPTICAL PICK-UP holder (BU) assy 2 chassis plate 7 two coil spring (insulating) 6 two stopper (BU) 8 9 optical pick-up 3 two floating screws (+PTPWHM2.6) two screws (+BVTP3 x 8) 4 two coil spring (insulating) 5 two screws (+BVTP2.6 x 8) 0 CN20 (27P) 9

20 3-4. BD8A BOARD 5 BD8A board CN0 (6P) 3 gap tube 4 Remove soldering from the four points. 2 screw (+BVTP2.6 x 8) 20

21 SECTION 4 TEST MODE [GC TEST MODE] This mode is used to check the fluorescent indicator tube, LED, model, destination, software version, volume, key, jog and VACS level. Procedure:. Press x (TAPE B) button, [TUNER ENTER] button and [DISC 2] button simultaneously. 2. All LEDs and segments in fluorescent indicator tube are lighted up. 3. When you want to enter the software version display mode, press [DISC ] button. The model and destination are displayed. 4. Each time [DISC ] button is pressed, the display changes from MC version, GC version, CD version, CDDM version, CDMA version, CDMB version, BDA version, BDB version, ST version, TC version, TA version, TM version in this order, and returns to the MC version display. 5. When [DISC 3] button is pressed while the version numbers are being displayed except model and destination, the date of the software creation appear. When [DISC 3] button is pressed again, the display returns to the software version display. When [DISC ] button is pressed while the date of the software creation is being displayed, the date of the software creation is displayed in the same order of software version display. 6. Press [DISC 2] button, the key check mode is activated. 7. In the key check mode, the fluorescent indicator tube displays K0 J0 V0. Each time a button is pressed, K value increases. However, once a button has been pressed, it is no longer taken into account. J value increases in the manner of 0,, 2, 3... if [JOG] is turned clockwise, or it decreases in the manner of 0, 9, 8, 7... if [JOG] knob is turned counter-clockwise. (only for HCD-ZX8) V value increases in the manner of 0,, 2, 3... if [VOLUME] knob is turned clockwise, or it decreases in the manner of 0, 9, 8, 7... if [VOLUME] knob is turned counter-clockwise. 8. When [DISC 3] button is pressed after all LEDs and segments in fluorescent indicator tube light up, the fluorescent indicator tube displays VACS A APBB. A is VACS level which is trigger by signal level while BB is VACS level which is trigger by APVACS (Abuse Protection VACS). 9. When [EX-CHANGE] button is pressed after all LEDs and segments in fluorescent indicator tube light up, alternate segments in fluorescent indicator tube would light up. If you press [EX-CHANGE] button again, another half of altemate segments in fluorescent indicator tube would light up. Pressing [EX-CHANGE] button again would cause all segments lights up. 0. To release from this mode, press three buttons in the same manner as step, or disconnect the power cord. [MC TEST MODE] This mode is used to check operations of the respective sections of Amplifier, Tuner, and Tape. Procedure: To enter MC Test Mode. Press x (TAPE B) button, [TUNER ENTER] button and [DISC 3] button simultaneously. 2. The 4 speaker symbols and CD ring indicators flash on the fluorescent indicator tube. The function is changed to VIDEO. Check of Amplifier. When v button is pressed, GEQ increases to its maximum and a message GEQ MAX appears on the fluorescent indicator tube. 2. When V button is pressed, GEQ decreases to its minimum and a message GEQ MIN appears on the fluorescent indicator tube. 3. When b button or B button is pressed, GEQ is set to flat and a message GEQ FLAT appears on the fluorescent indicator tube. 4. When the [VOLUME] knob is turned clockwise even slightly, the sound volume increases to its maximum and a message VOLUME MAX appears on the fluorescent indicator tube. 5. When the [VOLUME] knob is turned counter-clockwise even slightly, the sound volume decreases to its minimum and a message VOLUME MIN appears on the fluorescent indicator tube. Tape function. When a tape is inserted in Deck B and recording is started, the function is changed to VIDEO automatically. When [CD SYNC] button is pressed during recording in function, ALC (Automatic Logic Control) is turned on. 2. During recording, press. m (TAPE B) button will stop the recording and the function is changed to TAPE B and rewind the tape in Deck B until the recording start position and playback of the tape B is started. If the [REC PAUSE/START] button is pressed for a pause and pressed again to resume recording during recording time, when the tape is rewind, the tape will be rewind until the position where the pause is applied. AMS Test Mode. Select the function TAPE A or TAPE B. 2. Select Loop or Relay direction mode by pressing the [DIRECTION] button. Insert a test tape AMS-0A or AMS-20 to selected tape deck. 3. Press the [AMP MENU] button to enter the AMS test mode. 4. After the test tape is rewind to the beginning of the tape, the AMS+ is checked, and the mechanism is shut off after detecting the AMS signal twice. 5. Then the AMS is checked and the mechanism is shut off after detecting the AMS signal twice. 6. When the check is complete, a message of either OK or NG appears on the fluorescent indicator tube. To release from MC Test mode. To release from this mode, press?/ button. 2. The cold reset is enforced at the same time. [COLD RESET] The cold reset clears all data including preset data stored in the RAM to initial conditions. Execute this mode when returning the set to the customer. Procedure:. Press x (TAPE B) button, [TUNER ENTER] button, and?/ button simultaneously. 2. The fluorescent indicator tube becomes blank for a while, and the set is reset. [VACS ON/OFF] This mode is used to switch ON and OFF the VACS (Variable Attenuation Control System). Procedure:. Press?/ button to turn the set ON. 2. Press [PLAY MODE] button and?/ button simultaneously. The message VACS OFF or VACS ON appears on the fluorescent indicator tube. 2

22 [TUNER STEP CHANGE] The step interval of AM channels can be toggled between 9 khz and 0 khz. Procedure:. Press?/ button to turn the set ON. 2. Press [TUNER BAND] button to select the AM. 3. Press?/ button to turn the set OFF. 4. Press [TUNER ENTER] button and?/ button simultaneously. The system will turn ON automatically. The message AM 9k STEP or AM 0k STEP appears on the fluorescent indicator tube and thus the channel step is changed. [CD SERVICE MODE] This mode let you move the CD sled motor freely. Use this mode when you want to clean the optical pick-up. Procedure:. Press?/ button to turn the set ON. 2. Select CD function. 3. Press x (TAPE B) button, [TUNER ENTER] button, and [DISC 5] button simultaneously. 4. The CD service mode is activated. The message SERVICE MODE appears on the fluorescent indicator tube. 5. With the CD in stop status, press M (CD) button to move the optical pick-up to outside track, or press m (CD) button to move to inside track. The message SLED OUT or SLED IN appears on the fluorescent indicator tube. 6. To turn on or off the laser, press [PLAY MODE] button. The message LASER ON or LASER OFF appears on the fluorescent indicator tube. 7. To release from this mode, press?/ button. [AGING MODE] This mode can be used for operation check of CD section. If an error occurs, the aging operation would stops and the status is displayed. If there were no error occurs, the aging operation would continue repeatedly. Aging mode sequence: START (from Disc ) Disc Chucking TOC Reading Play first track for 2 seconds Play last track for 2 seconds EX-CHANGE open/ close Open the disc tray Disc skip Close the disc tray Change the next disc Procedure:. Press?/ button to turn the set ON. 2. Select CD function. 3. Load five discs on the disc tray. 4. Press [PLAY MODE] button to select the ALL DISCS mode, and press the [REPEAT] button to select REPEAT OFF mode. 5. Press x (TAPE B) button, [TUNER ENTER] button, and [DISC 4] button simultaneously. 6. Aging operation is started. 7. To release from this mode, press?/ button or disconnect the power cord to turn the power OFF. 22

23 Display when an error occurred (CD Error Code Mode) Procedure:. Press x (TAPE B) button, [TUNER ENTER] button and [DISC SKIP] button simultaneously to enter the error code display mode. 2. The fluorescent indicator tube displays the number of total error. 3. Each time M (CD) button or m (CD) button is pressed, display change as below. AMS (+) button FF button FF button Display of Total Error Display of Mechanical Error FR button FR button AMS ( ) button Display of no disc errors D*$$%%&&##00 D*: The number of no disc error ( 00 is latest one) (Press > (CD) button or. (CD) button to display next error) $$: Error type 0: Focus error 02: GFS error 03: Setup error %%: Not used &&: 00: No disc judgment without chucking retry. 0: No disc judgment after chucking retry. ##: The state when judged as no disc 0: Stop 02: Setup 03: TOC reading 04: Access 05: Playback 06: Pause 07: Manual search (Play) 08: Manual search (Pause) AMS (+) button Display of No Disc Error AMS (_) button [CD REPEAT 5 LIMIT OFF MODE] The number of repeat for CD playback is 5 times when the repeat mode is REPEAT ALL. This mode enables CD to repeat playback for limitless times. 4. To clear the error record, operate the cold reset. (Refer to the MC COLD RESET ) 5. To release from this mode, press the?/ button or disconnect the power plug to turn the power OFF. Display of total error Em **Ed** Em**: The number of mechanical errors. Ed**: The number of no disc errors after chucking the disc. Display of mechanical errors M*$$%%&&##00 M*: The number of mechanical error ( 00 is latest one) (Press > (CD) button or. (CD) button to display next error) $$: Not used %%: Loading related error (Second figure is not used) D: Stop by the problem other than mechanical problem while closing. E: Stop by the problem other than mechanical problem while opening. C: Stop by the problem other than mechanical problem while chucking up. F: Stop by the problem other than mechanical problem while chucking down. &&: Emerging error 0: Stop while chucking up. 02: Stop while chucking up. 03: Time-out of EX-CHANGE open. 05: Time-out of EX-CHANGE close. ##: Not used Procedure:. Press?/ button to turn the set ON. 2. Select CD function. 3. Press x (TAPE B) button, [TUNER ENTER] button and [REPEAT] button simultaneously to enter the CD repeat 5 limit off mode and the fluorescent indicator tube displays LIMIT OFF. To release from this mode, operate the cold reset. (Refer to the MC COLD RESET ) [CD SHIP MODE (WITH MEMORY CLEAR)] This mode moves the optical pick-up to the position durable to vibration and clears all data including preset data stored in the RAM to initial conditions. Use this mode when returning the set to the customer after repair. Procedure:. Press?/ button to turn the set ON. 2. Select CD function. 3. Press [EXCHANGE] button and?/ button simultaneously. The set will power off automatically. 4. After the STANDBY blinking display finish, a message LOCK is displayed on the fluorescent indicator tube and the CD ship mode is set. 23

24 [CD SHIP MODE (WITHOUT MEMORY CLEAR)] This mode moves the optical pick-up to the position durable to vibration. Use this mode when returning the set to the customer after repair. Procedure:. Press?/ button to turn the set ON. 2. Select CD function. 3. Press [REPEAT] button and?/ button simultaneously. The set will power off automatically. 4. After the STANDBY blinking display finish, a message LOCK is displayed on the fluorescent indicator tube and the CD ship mode is set. [CD POWER MANAGE] This mode let you switch on or off power supply to the BU during TUNER function. When CD POWER is set to OFF, the power supply to the BU is cut off during TUNER function. It will increase the time taken to access CD when function change from TUNER to CD but it will improve tuner reception. When CD POWER is set to ON, the power supply to the BU is not cut off during TUNER function. It will reduce the time taken to access CD when function change from TUNER to CD but it will decrease tuner reception performance. Procedure:. Press?/ button to turn the set ON. 2. Select CD function. 3. Press?/ button to turn the set OFF. 4. Press x (CD) button and?/ button simultaneously. The set will power on automatically. 5. The message CD POWER ON or CD POWER OFF will be displayed on the fluorescent indicator tube. [CD TRAY LOCK MODE] This mode let you lock the disc tray. When this mode is activated, the disc tray will not open when [OPEN/CLOSE] button or [EX-CHANGE] button is pressed. The message LOCKED will be displayed in on the fluorescent indicator tube. Procedure:. Press?/ button to turn the set ON. 2. Select CD function. 3. Press x (CD) button and [OPEN/CLOSE] button simultaneously and hold down until LOCKED or UNLOCKED displayed on the fluorescent indicator tube (around 5 seconds). [VIDEO/MD SWITCHING] This mode let you switch from VIDEO to MD and vice-versa. Procedure:. During Power Off, press [FUNCTION] button and?/ button simultaneously. The set power on automatically and the function will changed to MD. Do the same procedures again to change from MD to VIDEO. 24

25 SECTION 5 MECHANICAL ADJUSTMENTS Precaution. Clean the following parts with a denatured alcohol-moistened swab: record/playback heads pinch rollers erase head rubber belts capstan idlers 2. Demagnetize the record/playback head with a head demagnetizer. 3. Do not use a magnetized screwdriver for the adjustments. 4. After the adjustments, apply suitable locking compound to the parts adjusted. 5. The adjustments should be performed with the rated power supply voltage unless otherwise noted. Torque Measurement Mode Torque Meter Meter Reading mn m FWD (30 to 70 g cm) CQ-02C ( oz inch) mn m FWD (2 to 6 g cm) back tension ( oz inch) mn m FF/REW CQ-20B (80 to 70 g cm) ( oz inch) SECTION 6 ELECTRICAL ADJUSTMENTS DECK SECTION 0 db=0.775 V Precaution. Demagnetize the record/playback head with a head demagnetizer. 2. Do not use a magnetized screwdriver for the adjustments. 3. After the adjustments, apply suitable locking compound to the parts adjust. 4. The adjustments should be performed with the rated power supply voltage unless otherwise noted. 5. The adjustments should be performed in the order given in this service manual. (As a general rule, playback circuit adjustment should be completed before performing recording circuit adjustment.) 6. The adjustments should be performed for both L-CH and R- CH. 7. Switches and controls should be set as follows unless otherwise specified. 8. Set to the test mode. () Press the?/ button to turn the power ON. (2) Select the function TAPE A or B. (3) Press the button of x (TC-B), [TUNER ENTER], and [DISC 3] simultaneously, to set the tape deck test mode and displays TEST MODE on the fluorescent indicator tube. (4) To release from the test mode, press the?/ button. Test Tape Tape Signal Used for P-4-A00 0 khz, 0 db Azimuth Adjustment WS-48B 3 khz, 0 db Tape Speed Adjustment 25

26 Record/Playback Head Azimuth Adjustment DECK A DECK B Note: Perform this adjustments for both decks Procedure:. Mode: Playback (FWD) Adjustment Location: Playback Head (Deck A). Record/Playback/Erase Head (Deck B). test tape P-4-A00 (0 khz, 0 db) set MAIN board VIDEO/MD OUT jack (J70) L-CH, R-CH level meter + 2. Turn the adjustment screw and check output peaks. If the peaks do not match for L-CH and R-CH, turn the adjustment screw so that outputs match within db of peak. forward reverse L-CH peak Output level within db within db Screw position R-CH peak L-CH peak R-CH peak Screw position 3. Mode: Playback test tape P-4-A00 (0 khz, 0 db) L-CH MAIN board VIDEO/MD OUT jack (J70) L-CH oscilloscope set V H R-CH R-CH waveform of oscilloscope in phase good wrong 4. Repeat step to 3 in playback (REV) mode. 4. After the adjustments, apply suitable locking compound to the pats adjusted. 26

27 CD SECTION Note:. CD Block is basically designed to operate without adjustment. Therefore, check each item in order given. 2. Use YEDS-8 ( ) unless otherwise indicated. 3. Use an oscilloscope with more than 0M impedance. 4. Clean the object lens by an applicator with neutral detergent when the signal level is low than specified value with the following checks. Note: Clear RF signal waveform means that the shape can be clearly distinguished at the center of the waveform. VOLT/DIV : 200mV TIME/DIV : 500ns level :.3 ± 0.3Vp-p S-Curve Check BD8A board TP002(FE) TP7(VC) Oscilloscope Checking Location: Procedure:. Connect oscilloscope to TP02 (FE) and TP7 (VC). 2. Press the?/ button to turn the power ON. 3. Load a disc (YEDS-8) and actuate the focus search. (In consequence of open and close the disc tray, actuate the focus search) 4. Confirm that the oscilloscope waveform (S-curve) is symmetrical between A and B. And confirm peak to peak level within 3 ±0.5 Vp-p. S-curve waveform symmetry TP7 (VC) TP002 (FE) IC0 A B within 3 ±0.5Vp-p TP24 (RFACO) Note: Try to measure several times to make sure than the ratio of A : B or B : A is more than 0 : 7. Take sweep time as long as possible and light up the brightness to obtain best waveform. RF Level Check BD8A board oscilloscope TP24(RFACO) TP7(VC) Procedure:. Connect oscilloscope to TP24 (RFACO) and TP7 (VC). 2. Press the?/ button to turn the power ON. 3. Load a disc (YEDS-8) and playback. 4. Confirm that oscilloscope waveform is clear and check RFAC signal level is correct or not. 27

28 SECTION 7 DIAGRAMS 7-. CIRCUIT BOARDS LOCATION PANEL board VOL board VOLTAGE SELECTOR board POWER SWITCH board TC-A board MIC board CD-L board POWER SWITCHING FUNCTION SW board TC-B board JOG board CD-R board CURSOR board GAME-IN/HP board TRANS board SENSOR board SURROUND board MAIN board POWER board BD8A board SE-30 board MD-94 board 28

29 Ver NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS 7-3. WAVEFORMS Note on Printed Wiring Board: X : parts extracted from the component side. Y : parts extracted from the conductor side. : Pattern from the side which enables seeing. (The other layer s patterns are not indicated.) Caution: Pattern face side: (Conductor Side) Parts face side: (Component Side) Indication of transistor. C Q B E B B Q C Q C E E Parts on the pattern face side seen from the pattern face are indicated. Parts on the parts face side seen from the parts face are indicated. These are omitted. These are omitted. These are omitted. Abbreviation E2 : 20 V AC area in E model E5 : Chilean and Peruvian model MX : Mexican model UNLEADED SOLDER Boards requiring use of unleaded solder are printed with the lead free mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size) Note on Schematic Diagram: All capacitors are in µf unless otherwise noted. (p: pf) 50 WV or less are not indicated except for electrolytics and tantalums. All resistors are in Ω and /4 W or less unless otherwise specified. 2 : nonflammable resistor. C : panel designation. Note: The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. A : B+ Line. B : B Line. Voltage and waveforms are dc with respect to ground under no-signal (detuned) conditions. no mark : FM < > : CD PLAY : Impossible to measure Voltages are taken with a VOM (Input impedance 0 MΩ). Voltage variations may be noted due to normal production tolerances. Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances. Circled numbers refer to waveforms. Signal path. F : AUDIO f : TUNER E : TAPE PLAY (DECK A) d : TAPE PLAY (DECK B) G : TAPE REC (DECK B) J : CD PLAY Abbreviation E2 : 20 V AC area in E model E5 : Chilean and Peruvian model MX : Mexican model MAIN Board kHz IC40 qa (XC-OUT) 6MHz IC40 qd (X-OUT) 2.8Vp-p 0.5Vp-p PANEL Board 4MHz IC90 is (XOUT) 2.6Vp-p : LEAD FREE MARK Unleaded solder has the following characteristics. Unleaded solder melts at a temperature about 40 C higher than ordinary solder. Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to about 350 C. Caution: The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful! Strong viscosity Unleaded solder is more viscou-s (sticky, less prone to flow) than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc. Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder

30 R3 C3 R43 C34 R32 C33 C32 R4 R0 R5 C25 R3 R204 C5 C C8 R2 C209 R7 R R2 R6 C7 C0 C62 C8 C82 R82 CN20 C4 C74 R73 C96 C4 C3 R4 R3 C94 R42 R406 R65 R408 C23 R25 C25 R4 C22 FB30 C309 C307 R307 C3 R253 R354 R405 R35 R404 C252 C255 C PRINTED WIRING BOARD BD SECTION Refer to page 28 for Circuit Boards Location. : Uses unleaded solder A M0 B IC303 C305 C303 C D R33 C35 C36 C34 C32 R302 C308 R352 R353 C258 C259 C257 C260 IC25 C320 S0 C306 IC30 R49 C33 R306 R403 R30 R402 C37 R305 M02 E R205 C38 C84 C83 C20 R62 R9 C6 R252 R303 C30 R409 R407 C2 R63 C63 R40 R40 F R20 C20 C203 X7 C72 R72 C95 C7 C2 C R C5 IC0 C6 C85 C86 R8 MAIN BOARD CN50 (Page 38) G H C5 R2 C23 C6 Q0 CN0 C22 C24 R33 C43 R203 R42 C4 C42 R202 Semiconductor Location Ref. No. Location IC0 F- IC25 D-8 IC30 D- IC303 B-2 Q0 G

31 TP253 TP252 TP25 C96 TP48 TP49 TP45 TP44 TP47 TP53 TP46 TP60 TP62 TP42 TP2 R4 TP25 TP24 R2 C23 TP23 TP22 C33 C32 C3 R3 Refer to page 56 for IC Block Diagrams SCHEMATIC DIAGRAM BD SECTION Refer to page 57 for IC Pin Description of IC0. CN0 IC B/D R307 C307 TP304 C5 C42 R43 C4 C34 C24 C25 C4 R2 JPO0 C7 C6 R R0 TP423 R3 TP424 Q0 C5 C C0 TP0 TP TP2 TP3 TP4 TP02 C308 C309 TP302 TP303 R35 C306 R203 R5 C43 R42 R33 R32 C22 C8 TP5 TP6 TP7 TP8 R303 IC30 R405 R404 R302 TP427 TP9 C30 R49 R403 R352 TP03 R402 R353 TP04 R40 C38 R354 TP05 R C R30 C6 JPO02 R2 C2 TP30 C36 C37 R305 JPO03 R3 R4 C3 C4 C62 R6 C3 R306 R33 C35 C320 C7 R7 C5 C6 TP77 C74 X7 R72 IC0 TP429 TP428 IC303 C32 C34 R73 R8 C72 C95 TP43 TP430 C33 C85 C8 C83 TP432 TP433 C86 C82 R82 C84 TP67 TP78 FB30 C302 C303 TP422 C305 TP66 TP65 C94 TP425 R252 JPO004 R9 S0 R25 C25 C258 C259 R65 C63 TP426 R253 C20 R62 CN20 TP86 TP87 TP40 TP402 TP403 TP436 IC25 TP404 TP405 TP406 TP407 C20 R20 C209 R63 TP408 TP420 C203 TP250 TP47 R205 R4 C252 M0 (Page 36) TP46 TP45 TP44 TP43 R40 R409 R408 R407 TP42 C257 M02 TP42 R406 TP49 TP434 TP40 C23 R42 C22 C2 C260 C255 IC B/D TP4 TP409 R204 TP

32 7-6. PRINTED WIRING BOARDS LOADING SECTION Refer to page 28 for Circuit Boards Location. : Uses unleaded solder A SE-30 BOARD M M902 TURN TABLE MOTOR B C B MAIN BOARD CN509 (Page 38) 3 (3) MD-94 BOARD D E RE90 ROTARY ENCODER M90 LOADING MOTOR M F 3 (3) 32 32

33 7-7. SCHEMATIC DIAGRAM LOADING SECTION CN00 CN003 RE90 MAIN BOARD (3/4) CN509 (Page 36) CN004 M90 CN002 S00 CN0 CN02 M902 PH0 PH

34 R475 R476 R474 R473 C387 C386 R393 R39 R494 R493 R492 R487 R486 Refer to page 29 for Waveforms SCHEMATIC DIAGRAM MAIN SECTION (/4) Refer to page 60 for IC Pin Description of IC40. C87 Q96 R94 D94 Q95 R90 R9 CN04 R454 R453 R452 R45 R450 D93 Q93 Q94 R76 R89 R77 R80 Q90 R98 R97 R449 R448 R447 C86 D92 Q92 R73 Q9 R75 R74 Q98 R95 C95 Q99 R2 R96 CN507 C395 R93 C498 R482 C497 R48 (Page 43) C499 (Page 35) R395 R400 (Page 55) NO40 D405 D407 R402 R403 R404 R405 R406 R407 R477 D404 R40 C403 C402 Q40 R426 C404 TP2 IC402 TP R427 D403 R409 C4 X40 C40 C42 R4 R43 X402 C44 R42 C46 FB46 R47 R48 R49 R420 R42 R422 R423 R424 R425 IC40 TP469 R466 R465 C462 C464 FB462 R468 R467 D406 R428 R43 D402 R437 R436 R429 R430 R434 R432 R439 R446 R445 R444 (Page 36) 34 34

35 SCHEMATIC DIAGRAM MAIN SECTION (2/4) R06 R4 R26 R25 C0 R45 R52 C48 R5 C53 R54 C59 R59 C60 C6 C62 C63 C64 C37 C42 R66 R65 R04 R7 R8 C06 C04 C03 C02 R07 R08 R527 R530 R529 IC59(2/2) C52 R50 R508 R59 R506 C53 R5 R509 R520 R507 IC59(/2) R523 R526 R522 R52 R525 R524 R52 R502 R58 C506 R57 R3 R5 R4 C7 R7 C9 C8 R20 C2 C22 C24 C530 C53 C96 R64 R58 L02 Q03 L03 Q2 Q4 Q0 C4 C3 C27 R0 Q04 R286 C6 C66 R68 R67 C65 C73 C74 R78 C80 C72 C09 C529 J70 C FB503 FB502 FB500 FB50 C5 R C2 C28 R33 R57 Q05 R60 R37 R2 R23 R9 Q07 Q08 Q09 C528 R53 R284 R285 IC0 C94 C23 C70 C07 C79 C68 C33 C34 C55 C58 C46 C44 C43 C520 C59 C508 C50 C505 C503 C54 C58 C522 C523 C524 C504 C5 C57 C52 C507 C509 NO5 NO50 R504 C92 R92 C9 R55 R56 Q0 C82 R42 R38 R39 C39 R43 R72 R70 C49 C52 C57 R36 C56 C54 R299 Q6 R99 R282 Q5 R283 L04 R09 R27 Q Q3 R22 R24 Q06 Q02 R29 R28 C25 TP0 TP03 C26 TP04 TP06 TP07 TP08 C76 R62 R0 R32 C5 C08 C4 C0 R8 C20 C50 R6 R50 C47 R48 R287 R47 C45 R50 R500 C500 R503 C50 C502 C40 C38 R35 R34 C35 C36 C78 R79 R34 C67 R69 C525 C526 C527 R53 R55 R54 JR8 R505 R83 R85 R84 R82 R03 R86 R02 R88 R87 CN504 TP23 TP22 TP2 T0 Q45 Q40 C7 NO03 NO02 HRPE90 HP90 Q80 Q65 Q563 JR3 JW520 C56 C55 R56 R528 C69 C77 JR0 C05 JR00 R40 R05 C75 (Page 34) (Page 37) (Page 5) (Page 46)

36 JW588 D408 Ver SCHEMATIC DIAGRAM MAIN SECTION (3/4) Refer to page 56 for IC Block Diagrams. (Page 34) CN50 C320 C322 C40 JR402 C543 R584 C32 FB306 FB305 FB304 C329 R433 Q402 E2,E5 MODEL D506 D504 D503 MX MODEL R579 Q540 Q539 R578 (Page 37) (Page 3) C39 R320 R322 R324 Q550 R325 Q528 C533 R566 Q534 FB303 FB302 C328 C324 R32 C38 R39 R323 Q55 R326 Q529 Q530 C532 R569 Q533 R573 FB30 FB300 C325 JW542 Q552 R568 IC503 JW50 C555 FB555 R328 Q554 C342 IC53 C34 C535 C534 R57 Q535 Q536 R575 R588 CN505 IC B/D IC54 R300 R303 R30 IC B/D R302 C300 C30 C302 C303 R35 R34 C539 R567 C538 R572 Q537 Q538 R576 Q590 D329 R590 R59 E2,E5 MODEL (Page 40) IC55 IC50 IC5 CN506 R307 R37 R308 C304 C305 C307 JW526 JW58 C595 C593 C594 C59 TP50 CN509 R304 R305 R3 R32 R33 R30 C306 R38 D50 JW552 (Page 40) (Page 33) R306 L300 R309 R36 Q870 EPT50 C597 C598 C590 (Page 37) 36 36

37 7-. SCHEMATIC DIAGRAM MAIN SECTION (4/4) (Page 35) (Page 36) R554 R555 Q523 Q524 R558 R557 R556 R560 R559 R56 R228 R234 R225 R226 R229 R23 Q203 R227 Q204 R232 CN502 (Page 53) NO52 (Page 5) TP520 J76 Q20 C205 R25 C223 C243 R253 R252 C242 C25 JR2 R20 R207 C204 C222 Q200 R24 C22 IC50 R200 R206 C220 C227 C200 TP533 R24C238 R250 C237 R258 R249 R240 C24 C29 C226 R239 C236 R248 C235 R257 R247 R245 C233 CN53 C586 Q553 FAN90 R586 R585 R587 JR553 C587 D554 Q555 Q557 JW596 JW530 (Page 36) 37 37

38 Ver PRINTED WIRING BOARD MAIN SECTION Refer to page 28 for Circuit Boards Location : Uses unleaded solder (Page 54) MD-94 BOARD CN00 BD8A BOARD CN20 VOLTAGE SELECTOR BOARD CN000 PANEL BOARD CN906 B A D C FAN90 F J GAME-IN/HP BOARD CN802 (Page 45) (Page 50) I E GAME-IN/HP BOARD CN80 JW239 C02 JW633 R OUT FB502 C04 C03 R83 R85 R87 R88 R82 R84 NO02 PB (R-CH) TU90 NO03 CN504 R03 FM/AM TUNER PACK FM75Ω COAXIAL AM JW604 JW603 C9 JW86 R92 R42 C39 R38 R39 C92 JW605 R72 R43 C49 L02 8 C55 C82 R56 C94 Q0 R55 JW0 WHT ERASE PNK BLK REC/PB (R-CH) WHT BLK PNK BLK JW00 Q04 HRPE90 REC/PB/ERASE HEAD (DECK B) NO03 T0 R58 R60 C56 Q02 R70 Q05 JW664 C70 R64 R86 JW0 C96 L R529 R524 C523 R56-6 PB (L-CH) R02 R530 C524 R525-5 WHT BLK PNK R57 R57 C73 JR58 JR59 C74 C33 JR4 C54 C76 C26 JW606 8 C56 FB503 VIDEO/MD R8 JR50 R79 C3 C23 R09 R9 R299 R27 C52 C57 R99 IN J70 L03 R36 Q JW608 R 3 NO02 JW JW07 HP90 PB HEAD (DECK A) JW3 JW2 C34 JW05 R282 JW634 C72 JW06 Q03 JW08 JW74 Q09 L JW24 JW240 JW635 JW632 JW24 JW23 Q80 R7 C69 JW5 R69 R68 JR6 C25 C27 C67 R -4 JW243 JW242 JW245 JW79 JW80 D92 JW642 Q528 JW328 JW326 JW27 R0 C09 C0 C80 C77 JW09 JR3 R285 Q5 JR JW6 C05 JW25 C528-3 JW9 JW7 JW70 FB500 C529 R528 FB50 C522 R523-2 JW630 C06 JR9 JW700 C59 R527 TAPE MECHANISM DECK BLOCK R450 R449 R448 R447 JW8 JW26 C4 C63 C65 R65 JR2 Q65 R2 JW73 C37 JW72 C527 R283 R454 R453 R452 R45 JW63 R29 JR5 R24 Q07 R22 R28 Q2 Q4 L04 Q08 R23 Q06 R37 Q3 Q6 JW244 R487 JW248 JW89 R48 R90 JW8 Q96 CN04 Q94 JR09 Q529 R3 C4 R53 R08 C08 C R4 JR408 JW482 JW488 JW48 R39 R492 JW497 JW88 R474 R473 JW498 JW87 R475 JW465 JW3 JW28 R62 JW640 JW639 R32 R5 C58 R52 C55 C6 JW65 C40 R45C44 C0 R6 JW66 JR05 JR00C62 C59 C64 JR407 CLP5 C2 R07 C36 JW64 R52 D93 R75 R04 R522 R52 IN 38 C95 JW464 JW462 JW463 JW637 JW638 JW30 C9 R286 C2 JW66 C6 R66 PHONO R77 R76 Q0 JW520 L (Page 52) (Page 50) JR0 C462 Q98 R93 R444 JR509 JW34 JW67 JW325 R439 C8 R8 R7 R20 JW36 JW37 JW38 JW39 JW67 JW64 C58 R55 R526 C526 - SURROUND BOARD NO C68 C520 C525 C387 C386 JW FB462 R433 R434 R432 JR404 JW466 JW35 C35 C38 C45 R506 R508 R59 C57 R520 R494 JW486 R393 R493 JW485 C497 X40 JW450 IC R49 JW448 JW449 Q402 JW452 JW469 JW468 JW467 C395 JW484 JW495 JW493 JW494 D404 R409 JR409 R407 R406 R404 R403 R402 R400 C404 C40 C42 R427 JW400 Q40 R426 JW40 FB46 R420 R47 C46 JR403 JW45 JR402 Q536 C535 C40 JW64 JW47 JW470 JW66 JW472 JW95 R05 Q524 R4 JW609 JR440 JW68 C53 C54 C50 J76 VIDEO OUT R59 JR406 C87 D94 R74 Q92 C86 Q9 R73 C5 C66 JW607 R284 R5 R500 C505 R509 R9 R80 Q93 R R0 Q530 R67 C53 R54 C52 JW83 R94 R34 C42 R50 R96 C78 R78 C79 C52 ZX8 MIC BOARD CN920 JW453 JW406 JW405 R42 JW22 JR506 Q534 R572 R578 JW90 R557 JW60 JW59 JR3 JW6 JW69 JW7 C508 R507 C503 JR8 C50 JW599 JW20 JW598 JW597 JW593 JW232 R58 JW2 C5 C7 C46 C47 R47 C509 R53 2 JR2 C507 C5 R50 C500 C506 IC59 R505 C586 JW70 NO50 JW227 R23 CN502 R2 C43 C60 R503 JW85 JR405 R95 R97 JR0 JW84 R89 JW82 JW246 R476 Q95 Q99 JW46 R98 JW250 JW247 Y2 C48 R5 R54 R287 R486 JW456 Q90 Y R06 R48 CLP2 R50 C50 R504 Q563 C504 R502 C502 R232 R234 R229 JW460 C22 R558 R40 R560 R56 R556 Q40 R555 JW592 4 JW59 R228 ZX8 JW403 JW402 JW404 R425 R57 JW62 C538 R584 JW40 R33 JW4 JR50 R554 JW559 JW560 JW558 JW557 C29 JW226 JR23 JW225 Q200 R20 Q203 R226 R24 Q204 JR20 R227 JW230 JR2 JR22JW23 R248 R257 C233 R225 JR209 JW492 D407 D405 JW408 JW40 JW407 JW45 JW44 R423 C532 R566 R573 JR503 JW63 JW55 JW58 R34 R35 JW63 C53 JW233 NO52 D554 Q20 C204 C223 C222 C22 Q555 3 JW76 JW75 R200 R207 JW77 C JW594 JW595 JW29 JW28 JR207 C236 R240 C226 C235 R247 R245 JW223 JW457 C07 4 JW78 JW26 CN53 IC503 CD DIGITAL OUT (OPTICAL) I JW56 JW563 JW562 JR26 JW555 JW224 JW663 JW556 JW554 JW543 JW544 JW220 B BLK 3 C205 JW205 Q557 Q553 IC503 JW229 JW228 JW222 ZX8 JR500 E C555 IC50 3 JW62 R239 JW455 C24 C530 JW57 RED FB555 R25 R587 JR553 R588 R26 Q523 R559 NO5 R206 JW203 JW202 JW50 R585 EPT50 JW204 C7 JW54 JW56 JW22 C220 R586 C587 (CHASSIS) 2 JW659 JW660 H R24 C25 22 CLP4 JW5 JW238 JW237 C20 C75 JW49 JW50 JW52 JW53 ZX8 C24 C243 JW207 JW206 JW589 C237 C238 R258 R250 JW25 R252 C227 JW24 C242 R253 JW200 JW800 R249 ZX8 JR205 JW208 JW47 JW48 ZX8 JR25 JW234 Y3 R445 R477 R482 R468 R446 JR40 JR400 Q45 R25 C28 JW235 JR208 JW2 JW209 JW46 JW236 JW23 JW22 JW20 JW45 JR57 JW60 JW545 JW540 JW538 JW583 JW534 JW530 JW529 JW528 JW535 JW650 JW536 JW537 JW533 JW532 JW59 JW596 JW525 JW524 JW499 JW504 ZX8 JW454 JW458 JW249 R467 R465 C464 R466 E2,E5 MODEL B5 JW620 JW65 C499 0 JW568 R567 JW490 Y4 IC F JW43 R422 JW42 JW4 JW68 JW69 JW58 JW539 X402 C539 JW459 JW94 JW JW55 R576 JW43 JW6 JW H E2,E5 MODEL JR07 JW42 C580 MX MODEL Q538 JW644 C58 JW55 JW93 JW565 R568 C4 CLP JW327 JR55 JW92 JW550 R437 ZX8 C498 JW49 R40 R4 R43 C44 R436 CN507 R395 JR28 R405 R48 R429 Q539 JW98 JW97 R428 C403 R430 Q537 JW9 IC50 JW567 JW54 JW58 JW523 JR502 R575 JW575 JW5 JW658 C534 C543 R579 JW478 JW479 JW480 Q540 JW587 JW60 JW569 D403 JW483 JW487 JW665 JW46 JW576 D504 JW38 JW322 JW509 JW50 JW35 JW508 JW662 JW507 JW586 JW54 D503 JW476 JW477 JW526 JW53 JW56 JW57 JW600 JW590 JW474 JR475 JW579 JW548 JW702 JW52 G JW447 JW473 JW578 JW438 JW439 Q535 JR504 JW446 JW577 C590 E JW440 JW445 JW657 C533 R569 JR505 Q533 JW443 JW444 JW656 3 C595 CN505 (Page 39) JW44 JW442 JW570 IC402 C402 JW527 JW433 JW434 JW572 JW57 R42 JW435 D402 R43 JW436 D406 JW437 JW429 JW430 JW43 JW432 3 NO40 R424 JW427 JW428 CLP3 JW52 JW580 JW505 JW502 G JW424 JW425 JW426 JW566 JW324 POWER BOARD CN60 JW422 JW423 JW573 C593 D R326 IC5 3 C594 C598 R590 JW409 JW655 3 C59 JW503 JW588 R59 JW475 JW49 JW420 C329 JW36 3 C597 D50 JW652 E2,E5 MODEL D329 Q590 JW320 JW32 IC53 C342 R320 R325 Q55 JW39 Q552 JW489 D506 C39 Q550 (Page 42) JW47 JW48 JW666 C322 FB303 C38 JW309 R323 R32 R322 R324 IC55 R39 JW65 C320 JW99 FB305 JW34 R3 JW306 CN50 JW506 (Page 39) C306 D408 C328 FB304 JW3 FB306 C32 JW32 FB30 C34 JW302 C307 R307 H FB302 JW30 JW552 JW653 JW500 CN506 C POWER BOARD CN602 R30 9 R308 R37 3 JR44 Q870 Q554 R328 C304 9 R304 JW30 R34 JR300 C305 R32 JW303 CN509 C303 R35 R306 B R33 R38 B4 L300 R305 R309 R30 R303 R300 R36 C302 JW300 R302 C30 JW33 C300 JW37 JW542 JW643 JW307 C325 JW308 FB300 C324 IC54 JW323 JW305 A (Page 30) JW574 (Page 32) (2) WHT REC/PB (L-CH) Semiconductor Location Ref. No. Location Ref. No. D92 D-0 Q6 D93 D-0 Q40 D94 C-0 Q45 D329 D-2 Q65 D402 B-8 Q80 D403 B-8 Q90 D404 B-9 Q9 D405 B-9 Q92 D406 B-8 Q93 D407 B-9 Q94 D408 B-5 Q95 D50 D-3 Q96 D503 C-5 Q98 D504 B-6 Q99 D506 B-5 Q200 D554 H-4 Q20 Q203 IC0 F-9 Q204 IC40 C-9 Q40 IC402 B-8 Q402 IC50 G-4 Q523 IC503 H-2 Q524 IC50 D-4 Q528 IC5 D-4 Q529 IC53 B-4 Q530 IC54 B-2 Q533 IC55 B-3 Q534 IC59 H-8 Q535 Q536 Q0 H-0 Q537 Q02 G-0 Q538 Q03 G-0 Q539 Q04 H-0 Q540 Q05 H-0 Q550 Q06 G-9 Q55 Q07 G-9 Q552 Q08 G-9 Q553 Q09 G-9 Q554 Q0 G-9 Q555 Q H-0 Q557 Q2 G-9 Q563 Q3 H-0 Q590 Q4 G-0 Q870 Q5 H-0 Location H-9 F-8 E-8 G-9 F-0 D-9 D-0 D-0 D-0 D-0 C-0 C-0 D-9 D-9 H-6 H-6 H-6 H-6 B-8 D-8 F-7 G-8 E-0 E-9 E-9 C-7 C-7 C-7 C-7 D-7 D-8 D-7 D-7 B-5 B-4 B-4 H-3 B-3 H-4 H-4 H-6 D-2 B-3

39 7-3. PRINTED WIRING BOARDS POWER SECTION Refer to page 28 for Circuit Boards Location. : Uses unleaded solder A B C D E F TRANS BOARD CN3 (Page 54) TRANS BOARD CN2 (Page 54) HCD-ZX8 SURROUND BOARD NO700 (Page 52) K N O PL600 C663 Q664 Q648 D664 R649 R662 C648 NO603 JW687 R663 R664 JW699 JW702 R66 7 JW663 C662 JW685 R660 D66 D660 C649 JW698 JW700 JW703 JW704 R646 JW689 JW70 Q647 R647 R644 JW705 Q644 PL605 C657 HCD-ZX8 CN606 JW630 NO607 D656 6 JW63 JW632 JW634 JW633 JW635 JW729 JW706 JW629 JW728 JW636 C677 JW723 R672 C667 NO604 PL604 R654 R676 2 JW637 R677 C666 R622 C66 C676 C656 C67 JW638 JW627 JW628 R656 R657 JW626 JW679 JW639 JW625 R62 C609 JW68 JW678 JW677 JW676 JW624 IC600 JW683 JW645 JW644 JW643 JW642 JW64 R63 R64 JW640 D6 R633 R629 JW708 JW623 R632 R628 R66 JW622 D62 R630 C678 R659 R658 C658 JW62 R68 Q629 Q628 Q630 R69 JW620 R678 R679 JW675 JW674 JW673 JW648 JW649 JW650 R668 JW69 R63 JW730 JW655 R605 Q604 JW654 R608 R69 R698 JW657 R670 JW653 R67 R65 C60 JW656 R6 R60 R609 R620 Q668 Q68 D609 JW646 Q60 C608 R694 R669 R600 C602 C600 JW68 JW67 R60 C60 C604 D658 JW66 JW65 R62 JW65 JW652 R699 R692 R67 R652 JW73 D670 R603 JW64 C654 PL602 JW672 C679 8 C659 C627 JW67 D620 JW63 R602 R65 C65 JW732 IC627 C R650 HCD-ZX8 JR647 CN600 JW670 JW70 JW667 JW666 D627 R607 R690 R606 Q606 C629 JW62 JW6 R653 5 JW647 JW669 JW668 JW709 C650 R604 C652 JW665 PL60 EP605 (CHASSIS) C605 JW664 JW66 JW660 JW608 JW607 JW606 JW605 JW604 PL603 JW603 3 NO609 JW659 JW602 JW60 JW609 JW658 JW600 JW60 C655 JW662 CN60 CN HCD-ZX8 M SURROUND BOARD NO70 (Page 52) MAIN BOARD CN506 H (Page 38) G MAIN BOARD CN505 (Page 38) L GAME-IN/HP BOARD CN803 (Page 50) Semiconductor Location Ref. No. Location D609 D-8 D6 E-6 D62 E-6 D620 D-7 D624 H-6 D627 C-8 D646 G-3 D654 F-5 D655 G-5 D656 C-4 D658 C-7 D660 D-3 D66 D-3 D664 C-3 D670 D-7 IC600 F-6 IC627 C-8 Q604 C-8 Q606 C-8 Q60 D-8 Q68 D-7 Q628 F-6 Q629 F-6 Q630 F-6 Q634 H-7 Q635 H-7 Q640 H-7 Q64 I-7 Q644 F-3 Q647 F-3 Q648 D-3 Q664 C-3 Q668 D-7 TH630 D654 G TH632 CN605 2 JW682 D646 RY646 R655 JW697 JW696 JW707 D655 JW74 JW73 JW72 JW7 H C694 C690 JW720 JW724 JW680 C695 TM609 JW72 JW722 JW69 JW690 JW686 JW726 JW727 TM607 C69 C692 JW688 R624 R625R665 R674 D624 R626 JW78 R673 JW79 R623 EP608 C637 C636 C635 JW77 JW76 R635 R634 R693 C634 JW725 Q634 R64 R640 Q640 R637 Q64 R636 Q635 R639 R638 R643 R642 JW75 PL (2) (2) I L FRONT (SPEAKER A) R (CHASSIS) L SURROUND R SPEAKER 39 39

40 D62 R64 R63 D6 R674 R624 R673 R SCHEMATIC DIAGRAM POWER SECTION (/2) IC600 Q634 R693 C637 R637 R640 Q635 R634 C634 C635 R635 Q640 R642 NO609 R638 R639 (Page 5) R64 Q64 R643 R68 C636 R636 C600 R600 C604 R69 R603 R62 C66 Q60 R620 C60 R60 R602 C602 R692 R67 R699 C608 R6 C609 C60 R65 R66 D620 Q68 C67 R62 R622 (Page 4) C65 R65 C652 R652 C605 R694 D609 R60 R609 D670 R67 Q668 R672 R670 C667 EP605 R608 R69 R698 C666 CN60 C650 R650 C654 R653 R669 R668 R63 R633 R632 Q630 R630 R628 NO604 CN605 TH630 R626 D624 Q629 Q628 R629 (Page 36) NO603 R625 R665 (Page 4) (Page 55) Q664 Q606 CN602 R607 R662 R663 R690 R606 IC627 R664 R604 (Page 36) JW662 C662 D664 C663 JW663 R605 Q604 C628 C629 C627 D627 JW647 CN600 (Page 53) 40 40

41 C69 C695 C694 C SCHEMATIC DIAGRAM POWER SECTION (2/2) RY646 JW682 JW680 JW720 R654 R655 JW699 TM609 R646 D646 D654 D655 R644 Q644 JW69 Q647 Q648 D66 R66 JW688 JW726 (Page 40) R647 JR647 C648 C649 R649 D660 R660 JW686 EP608 JW689 JW690 TM607 D656 C657 D658 C690 C655 C656 R656 R657 C658 R658 R659 C659 NO607 C676 R676 R677 R678 C677 R679 C679 (Page 55) C678 CN606 (Page 40) (Page 53) 4 4

42 R997 JW96 JW963 JW962 JW964 JW03 JW02 JW948 JW958 JW959 JW960 JW956 JW955 JW954 D904 D927 JW952 JW849 JW848 JW846 JW845 JW953 JW947 JW946 JW009 JW008 JW939 JW884 JW957 JW824 JW88 JW880 JW859 JW843 JW945 NO909 R95 C96 R94 JW847 R92 JW844 R9 R97 R96 JW879 JW877 JW878 R352 JW875 JW876 JW874 JW870 JW868 JW866 JW867 JW865 JW863 JW864 R99 JW842 JW84 JW840 JW839 JW838 JW837 JW836 R949 R947 R952 R950 R953 C949 R905 R906 R907 R908 R909 R90 C95 C953 C955 C957 JW835 JW834 JW83 JW832 JW833 JW898 JW897 JW900 JW899 JW997 JW996 JW995 JW994 JW993 JW992 JW99 JW990 JW989 JW988 JW002 JW00 JW903 JW000 JW902 JW998 JW90 C905 R902 JW896 JW06 JW987 JW986 JW985 JW984 JW983 JW982 JW98 JW980 JW979 JW978 JW977 JW976 JW975 JW974 JW973 JW972 JW97 JW970 JW969 JW94 JW942 C970 C924 C925 C926 C927 C928 C929 C930 C93 C932 C933 C934 C935 C936 C937 C938 C939 C940 R899 R898 JW003 JW967 JW966 R940 R PRINTED WIRING BOARD PANEL SECTION Refer to page 28 for Circuit Boards Location. : Uses unleaded solder A R94 B C D E F G H Q908 JW0 JW00 NO97 9 CLP808 S924 TUNER ENTER S927 TUNING MODE T S92 S923 R983 R984 TUNING R987 R988 R989 D906 R985 R986 TUNER/BAND S922 JW005 JW007 S925 MEMORY S926 FM MODE Q904 C922 JR92 Q906 R993 R942 JW96 JW97 JW98 D905 FL JW004 JW006 Q905 R994 D903 D90 Q903 R998 JW892 JW893 D900 D902 R903 R904 C900 JR97 JW887 JW888 JW889 JW890 JW89 TC-B BOARD CN96 MAIN BOARD CN507 VOL BOARD NO924 CN906 C C923 C904 R90 R900 C903 C90 JW886 JR96 JW862 JW04 JW86 C966 JW999 IC90 C99 R922 R93 X60 R35 C97 FB90 R98 JW904 JW905 JW850 JW85 JW852 JW853 JW854 JW855 (Page 49) (Page 38) (Page 44) JW895 C973 JW860 EPT805 JW885 C98 JW95 C96 Q C960 R946 C945 C947 JW906 C946 C948 IC903 R945 R999 JW856 JW857 JW858 CN93 Q902 R939 R938 C959 C958 C956 C954 C Q90 C950 JW95 R954 R95 R948 C944 C942 C94 JW968 R959 JW950 C92 R944 S903 SLEEP S903 R958 R957 R956 S928 DISPLAY JW949 S928 CLOCK/TIMER S90 S902 SET SELECT S900 ILLUMINATION C920 IC902 JW943 JW944 R NO90 5 CN908 CLP (3) P POWER SWITCH BOARD NO92 S HCD-ZX8 R (Page 50) TC-A BOARD CN95 (Page 48) JOG BOARD NO (Page 48) Semiconductor Location Ref. No. Location Ref. No. Location D900 B-5 D927 F-6 D90 B-4 D902 B-5 IC90 D-7 D903 B-4 IC902 D-2 D904 F-6 IC903 E-0 D905 A-4 D906 B-2 Q90 C-0 Ref. No. Location Q902 C-0 Q903 G-4 Q904 G-3 Q905 G-4 Q906 G-3 Q908 B