D-EG5/EG5CK/EG7 SERVICE MANUAL PORTABLE CD PLAYER. US Model D-EG7 Canadian Model D-EG5/EG5CK/EG7 AEP Model UK Model E Model Australian Model D-EG7

Transcription

1 D-EG/EGCK/EG7 SERVICE MANUAL Ver US Model D-EG7 Canadian Model D-EG/EGCK/EG7 AEP Model UK Model E Model Australian Model D-EG7 Photo : D-EG7 Model Name Using Similar Mechanism CD Mechanism Type Optical Pick-up Type NEW CDM-29AAA DAX-A2 SPECIFICATIONS US, Canadian model: 20 V, 60 Hz AEP, French, German, East European, E3 model: V, 0/60 Hz UK model: V, 0 Hz Australian model: 240 V, 0 Hz Continued on page 2 PORTABLE CD PLAYER MICROFILM

2 TABLE OF CONTENTS Specifications.... SERVICING NOTES GENERAL Locating the Controls DISASSEMBLY 3-. Upper Lid ASSY Cabinet (Front), Cabinet (Rear) MD ASSY Spindle Motor (M902), Optical Pick-up, Sled Motor (M90) Main Board SERVICE MODE ADJUSTMENS DIAGRAMS 6-. Explanation of IC Terminals Block Diagram Printed Wiring Boards Schematic Diagram EXPLODED VIEWS 7-. Cabinet (Front) Section Cabinet (Rear) Section Optical pick-up Section (CDM-29AAA) ELECTRICAL PARTS LIST... 3 DANGER Invisible laser radiation when open and interlock failed or defeated. Avoid direct exposure to beam. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. Laser component in this product is capable of emitting radiation exceeding the limit for Class. This Compact Disc player is classified as a CLASS LASER product. The CLASS LASER PRODUCT label is located on the rear exterior. Flexible Circuit Board Repairing Keep the temperature of the 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. SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK! OR DOTTED LINE WITH MARK!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. ATTENTION AU COMPOSANT AYANT RAPPORT À LA SÉCURITÉ! LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE! SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY. 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. 2

3 L02 R809 SECTION SERVICING NOTES NOTES ON HANDLING THE OPTICALPICK-UPBLOCK 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 breakdown 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. 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 pick-up block. Therefore, when checking the laser diode emission, observe from more than 30cm away from the objective lens.. Calculate the current value by the reading of the digital voltmeter. Reading of the tester (V) 4.7 ( Ω ) = current value (A) (Example) Reading of the digital voltmeter of V : V 4.7 Ω = (A) = 48 ma 6. Check that the current value is within the following range. + Current value of the label - ma(2 C) Variation by temperature : 0.4mA / C Current increases with temperature increased. Current decreases with temperature decreased. If the current is more than the range above, there is a trouble in the automatic power control circuit or the laser diode is in deterioration. If less than the range, a trouble exists in the automatic power control circuit or the optical pick-up. [MAIN BOARD] (Side B) Before Replacing the Optical pick-up Block Please be sure to check thoroughly the parameters as per the Optical pick-up Block Checking Procedure (Part No. : ) issued separately before replacing the optical Pick-up block. Note and specifications required to check are given below. FOK output : IC0! pin When checking FOK, remove the lead wire to disc motor. S curve P-to-P value : 0.9.Vp-p IC0 # pin. (Connect pin! of IC0 (TP880) and 3of IC0 (GND) with a jumper wire). When checking S curve P-to-P value, remove the lead wire to disc motor. Adjusted part for focus gain adjustment : RV03 RF signal P-to-P value : 0.8.2Vp-p Traverse signal P-to-P value :.0 2.4Vp-p The repairing grating holder is impossible. Adjusted part for tracking gain adjustment : RV02 Laser Diode Checking Methods During normal operation of the equipment, emission of the laser diode is prohibited unless the upper panel is closed while turning ON the S80 (push switch type). The following two checking methods for the laser diode are operable. digital voltmeter Method- (In the service mode or normal operation) : Emission of the laser diode is visually checked.. Open the upper lid. 2. Push the S80 as shown in Fig Check the object lens for confirming normal emission of the laser diode. If not emitting, there is a trouble in the automatic power control circuit or the optical pick-up. During normal operation, the laser diode is turned ON about 2. seconds for focus searching IC80 2 TP R806 C806 TP82 TP47 X80 TP0 Fig. - Method to push S80 Method-2 (In the service mode or normal operation) : Check the value of current flowing in the laser diode.. Remove the upper panel. 2. Read the current printed on the rear side of the optical pick-up. (Print on the rear side of the optical pick-up) current value A : less than 48 ma AC22397 year month date shift No. line No. version 3. Connect a digital voltmeter as shown in Fig Press the ^ key. S80 P C879 TP86 (TEST) TP07 TP06 TP TP2 TP03 R06 R07 R0 Q0 TP08 TP34TP TP0 TP02 TP23 TP47 C6 C49 TP32 R0 R09 TP8 Fig. -2 Digital Voltmeter Connecting Location 3

4 SECTION 2 GENERAL This section is extracted from instruction manual. 4

5 r The equipment can be removed using the following procedure. SECTION 3 DISASSEMBLY Set Upper Lid ASSY Cabinet (Front) Cabinet (Rear) MD ASSY Spindle motor (M902), Optical Pick-up, Sled motor (M90) Main board Note : Follow the disassembly procedure in the numerical order given. 3-. UPPER LID ASSY Upper lid ASSY 3 2 OPEN 3-2. CABINET (FRONT), CABINET (REAR) Upper lid ASSY Cabinet (Front) 6 Claws 8 Claws 7 Claws 9 2 Screws (B2) Cabinet (Rear) 2 Screws (B2) Buckle ASSY 4 OPEN 3 Screws (B2) Screws (B2x0) Screws (B2x0)

6 3-3. MD ASSY MD ASSY Flexible board CN0 Cabinet (Rear) 4 CN702 (Red) 3 CN70 (Blue) 2 CN703 (White) 3-4. SPINDLE MOTOR (M902), OPTICAL PICK-UP, SLED MOTOR (M90) 3-. MAIN BOARD Screws (B.7) Spindle motor (M902) Main board 2!º 9 Screws (+P.4x2.) Spring, sled 4 Sled motor (M90) Optical pick-up (DAX-A2) Cabinet (Rear) 3 Screw (B.7x6) 8 7 Rack Screw ASSY, Feed 6 Screw 6

7 L02 R809 SECTION 4 SERVICE MODE Service Mode (service program) The equipment is provided with a service program built in the microcomputer, like conventional models. Service program operation methods are described in the following. REPEAT/ENTER Tracking gain-up mode while pressing Step 3 (Resetting service mode ). Be sure to disconnect the external power supply and remove the solder bridge at the TEST terminals connected in setting. 2. The set thus becomes available for normal operation. MAIN BOARD (Side B) PLAY MODE Tracking servo and sled servo are turned ON + (FF) The optical pick-up is moved outwardly HOLD OFF n ON Be sure to turn OFF the HOLD switch (if ON, pressing each key is deactivated) ^ (PLAY/PAUSE) FOCUS is turned ON to effect pull in mode = (FR) The optical pick-up is moved inwardly p (STOP) All servos are turned OFF IC R806 C806 TP82 X80 TP0 Fig. 4- Layout of each key Step (Service mode setting method). Turn OFF the HOLD switch the external power supply disconnected (power is not applied to the set). 2. Solder across the TP86 (TEST) terminals (pin %, IC80 (TEST) is grounded). 3. Connect an external power supply. Thus, the set is switched to the service mode. Step 2 (Operation in the service mode ). Once the service mode is effected, the LCD displays indications each of which is repeatedly displayed. However, the following operations can be activated even if LCD indication is effected. 2. By pressing the + or = key, the optical pick-up movable inwardly or outwardly. However, if this is activated, tracking servo and sled servo are turned OFF, so it can be turned ON by pressing the PLAY MODE key, if required. 3. By pressing the REPEAT/ENTER key, the tracking gain-up mode becomes active. 4. By pressing the ^ key, focus is turned ON from focus searching while entering CLV-S (pull-in mode). Without disc, focus searching is repeated continuously.. By pressing the PLAY MODE key, tracking servo, sled servo and CLV-A (servo in PLAY) are turned ON. 6. When 4. and. are performed, playing begins. No muting is ON in the service mode. 7. By pressing the p key, all servos (focus tracking and sled) are turned OFF. However, the disc motor revolves for a while by inertia. P C879 TP86 (TEST) TP06 TP86 (TEST) Normal mode : Open Test mode : Short TP07 TP TP2 TP03 R06 R07 R0 Q0 TP08 TP34TP TP0 TP02 TP23 TP47 Fig. 4-2 Location of test terminal C6 C49 TP32 R0 R09 TP8 7

8 R0 R2 L02 R809 SECTION ADJUSTMENTS CD SECTION Precautions for Adjustment. Before beginning adjustment, set the equipment to service mode. After the completion of adjustment, be sure to reset the service mode. For more information, see Service Mode (service program) on page Perform adjustments in the order given. 3. Use the disc (YEDS-8. Part No ) unless otherwise indicated. 4. Power supply voltage requirement : DC 4. V HOLD switch : OFF VOLUME : Minimum SOUND switch : NORM AVLS switch : OFF Before Beginning Adjustment Set the equipment to service mode (See page 7) and check the following. If there in an error, repair the equipment. Checking of the sled motor. Open the upper panel. 2. Press the + and = keys and check that the optical pick-up can move smoothly without sluggishness or abnormal noise in innermost periphery n outermost periphery n innermost periphery. + : The optical pick-up moves outwardly = : The optical pick-up moves inwardly Checking of focus searching. Open the upper panel. 2. Press the ^ key. (Focus searching operation is activated continuously). 3. Check the object lens of the optical pick-up for smooth up/down motion without sluggishness or abnormal noise. 4. Press the p key. Check that focus searching operation is deactivated. If not, again press the p key slightly longer. Focus Bias Check Condition : Hold the set in horizontal state. 7 Procedure : [MAIN BOARD] (Side B) C879 TP86 (TEST) TP4 (TEO) TP2 TP22 TP07 TP06 TP TP2 TP03 R06 R07 TP3(RFO) TP3 (RFO) R0 Q0 TP08 TP02 TP23 TP47 C99 R03 R02 TP04 C6 C49 TP32 R0 R09 TP34TP TP0 TP09 TP7 TP8 TP0 TP9 TP2 0 LCD80 2 kω TP33 (VC) C0 TP33(VC). Set the equipment to service mode stop state (See page 7). 2. Connect the oscilloscope between TP3 (RFO) and TP33 (VC) on the MAIN board. 3. Move the optical pick-up by Pressing the + and = keys. 4 Put the disc (YEDS-8).. Press the ^ key. From focus searching, focus is turned ON while entering ( CLV drawing-in mode. Tracking and sled are turned OFF. ) 6. Press the PLAY MODE key. (Both tracking and sled are turned ON). 7. Check the oscilloscope waveform is as shown below. A good eye pattern means that the diamond shape ( ) in the center of the waveform can be clearly distinguished. oscilloscope (AC range) VOLT/DIV : 200 mv TIME/DIV : 0. ms RF level Vp-p RF Signal Reference Waveform (eye pattern) To watch the eye pattern, set the oscilloscope to AC range and increase the vertical sensitivity of the oscilloscope for easy watching. 8. Stop removing of the motor by pressing the p key. 9. After the completion of adjustment, reset service mode. (See page 7 ) 8

9 R0 R2 L02 R809 Focus/Tracking Gain Adjustment A servo analyzer is necessary in order to perform this adjustment exactly. However, this gain has a margin, so even if it is slightly off, there is no problem. Therefore, do not perform this adjustment. Focus/tracking gain determines the pick-up follow-up relative to mechanical noise and mechanical shock when the 2-axis device operate. However, as these reciprocate, the adjustment is at the point where both are satisfied. When gain is raised, the noise when 2-axis device operates increases. When gain is lowered, it is more susceptible to mechanical shock and skipping occurs more easily. This adjustment has to be performed upon replacing any of the following parts : Optical pick-up RV03 (Focus gain) RV02 (Tracking gain) Normally, be sure not to move RV03 (focus gain) and RV02 (tracking gain). Focus Gain Adjustment Procedure : This adjustment is not performed. If focus gain RV03 is turned, set to mechanical center Tracking Gain Adjustment (perform at normal operation) [MAIN BOARD] (Side B) TP4 (TEO) oscilloscope (DC range). Place the optical pick-up level, horizontally. (If the optical pickup is not level, the 2-axis device will be weighted and adjustment cannot be done.) 2. Connect the oscilloscope between TP4 (TEO) and TP33 (VC) on the MAIN board. 3. Set the disc (YEDS-8) and Press the ^ (+) key. 4. Turn RV02 slightly clockwise (tracking gain drops) and obtain a waveform with a fundamental wave (waveform has large waves) as in Figure -.. Turn RV02 slowly counterclockwise (tracking gain rises) until the fundamental wave disappears (no large waves) as in Figure Set RV02 to the position about 30 counterclockwise from the position obtained in step. If RV02 contact point is more than 90 counterclockwise from mechanical center, tracking gain is too high. In this case, readjust from step Press ^ (+) or = keys and observe the 00 track jump waveform. Check that no traverse waveform appears for both ^ (+) or = directions. (See Figures -3 and -4.) It is acceptable if the traverse waveform appears only now and then, but if it appears constantly raise tracking gain slightly and check step 7 again. 8. Check that there is no abnormal amount of operation noise (white noise) from the 2-axis device. If there is, tracking gain is too high, readjust starting with step 4. The waveforms are those measured with the oscilloscope set as shown below. VOLT/DIV : 0mV TIME/DIV : ms Waveform when tracking gain lowered. Fundamental wave appears (large waves). 0V 80 P C879 TP86 (TEST) TP4 (TEO) TP2 TP22 IC80 TP07 TP TP03 R806 C806 TP82 TP TP2 R06 R07 TP3(RFO) R0 Q0 TP08 TP02 TP23 TP47 C99 R03 R02 TP04 C6 C49 TP32 R0 R09 TP34TP TP0 TP09 TP7 TP8 TP0 TP9 TP2 0 TP33 (VC) X80 C0 TP0 TP33(VC) Fig. - Waveform when fundamental wave disappears (no large waves). Fig. -2 Waveform when no traverse waveform during 00 track jump. (Brake application is smooth because of adjustment.) Fig track jump waveform Waveform when no traverse waveform during 00 track jump. (Brake application is poor because of adjustment.) 0V 0V 0V 00 track jump waveform traverse waveform Fig. -4 9

10 Adjustment Location : MAIN BOARD] (Side A) RV02 : Tracking Gain Adjustment RV03 : Focus Gain Adjustment 0

11 Pin No. Pin name I/O Description 3 SEG 2 4 Not used (Open). 4 FP26 Not used (Open). XRST DSP O Reset output terminal. 6 AMUTE HP O Audio mute output terminal. 7 DRV-MUTE O Motor drive mute signal output. 8 C2PO FILTER O C2PO filter output. 9 DACLT DAC I/O CPU serial data input, latch signal output (For DAC only). 0 C2POEN O C2PO signal control output. L : Stop H : Searching TEOADJ TEO O Tracking ADJ switch control output. 2 RMDAT WRMT Not used (Open). 3 VLCD (GND) Connect to ground. 4 VSS (GND) Connect to ground. NDLY (GND) Connect to ground. 6 CHGON PWR O Charge ON/OFF control output. 7 PCON PWR O Power ON/OFF control output. L : ON H : OFF 8 XMCRST PWR I System reset input terminal. 9 OSC I System clock oscillator input terminal (4.943 MHz). 20 OSC 2 O System clock oscillator output terminal (4.943 MHz). 2 SDT ESP I Serial data input from ESP control (IC60). 22 SDT ESP O Serial data output to ESP control (IC60). 23 SCK ESP O Serial clock output to ESP control (IC60). 24 PWR DBB O Headphone amplifier ON/OFF control output. 2 XLT ESP O Latch signal output to ESP control (IC60). 26 HOLD SW I Hold switch input termianl. L : HOLD ON H : HOLD OFF 27 XLMT MD I Limit switch input terminal. L : Inside Track 28 XRSM SW I RESUME switch input terminal. L : ON H : OFF 29 WP XDC DT PWR I DC in voltage detection terminal. 30 WP XOPEN SW I Door open switch input terminal. L : Close H : Open 3 WP XPLAY SW I Play/pause key input terminal. 32 XAVLS SW I AVLS switch input terminal. 33 XL/O DCT I LINE OUT jack detection terminal. L : Present H : No 34 XRCHG SW I Rechargeable battery detection terminal. L : Present H : No 3 Not used (Open). SECTION 6 DIAGRAMS 6-. EXPLANATION OF IC TERMINALS IC80 MC68HC0LSC44272CPB (SYSTEM CONTROL) 36 R/W DSP O Read/Write switching signal output terminal. L : Read H : Write 37 SDT DSP I SUB Q signal input terminal. 38 SDT DSP O Serial data output to DSP (IC02) and D/A C (IC30). 39 SCK DSP O Clock signal to enter SUB Q signal to DSP (IC02) and D/A C (IC30). 40 FOK RF I FOK signal input terminal. 4 BUSY DSP I BUSY signal input terminal from DSP (IC02). 42 BEEP H/P O Beep sound output terminal. 43 INT SCOR DSP I Sub code sync SO+SI input terminal. 44 INT DFCT RF I Wireless remote control signal input. 4 VDD (VCPU) Power supply terminal.

12 Pin No. Pin name I/O Description COM 3 0 O LCD common signal output terminal. 0 VREFH I Reference voltage input terminal (connect to VDD). VREFL Connect to ground. 2 AD ESPSL/TEST I Test mode terminal. L : Test mode H : Nomal mode 3 AD KEY I A/D input terminal for main unit key. 4 AD CHGMNT2 I Rechargeable battery detect input. AD HI DC I A/D input terminal for DC IN voltage detection. 6 AD BAT I Rechargeable battery/dry cell detection input. 7 AD CHGMNT I A/D input terminal for charging voltage monitor. 8 AD VCC I A/D input terminal for VCC voltage monitor. 9 AD DSP OFFSET I A/D input terminal for DSP off-set monitor. 60 FP0 Not used (Open) SEG 0 6 O LCD segment signal output terminal SEG 7 Not used (Open). 2

13 6-2. BLOCK DIAGRAM D-EG/EGCK/EG7 Signal path. J : CD 3 4

14 D-EG/EGCK/EG PRINTED WIRING BOARDS Semiconductor Location A DC IN 4.V C33 JW02 R2 44 FB603 C434 TP404 TP40 C437 R83 R824 TP806 R82 TP804 R823 TP84 TP807 TP83 S82 \\^ TP808 S80 \= S8 07 R822 R82 S807 S84 + VOLUME Q L06 C88 IC03 R39 C39 C87 R3 C72 TP0 X80 TP48 TP822 0 C807 4 C TP R808 C879 TP2 TP02 TP TP23 TP03 R0 TP86 EXCEPT TP07 TP08 Q0 (TEST) FRENCH MODEL R06 R07 TP47 TP34 TP TP86 (TEST) NORMAL MODE:OPEN TEST MODE:SHORT TP4 (TEO) BT3 TP2 TP22 DRY BATTERY SIZE "AA" (IEC DESIGNATION LR6) 2PCS, 3V TP3(RFO) 0 C6 C49 TP32 R0 R09 TP8 TP7 TP0 TP09 TP0 C99 R03 RECHAGEABLE BATTERY NC-AA/NH-MDAA 2.4V R02 TP04 C0 TP9 TP2 TP33(VC) LCD80 R832 TP80 S80 REPEAT/ ENTER S8 S809 PLAY MODE TP TP82 6 S80 S80 S83 4 S806 ESP S83 S804 HOLD OFF ON SOUND 02 7 R806 8 C806 TP82 0 IC80 () 6 R88 9 TP8 S80 p TP809 J 30 2 TP06 BT2 TP87 FB0 FB02 C TP304 TP803 S8 \+ S804 C7 Q40 R4 C34 C44 R36 TP TP88 TP D R830 C69 C602 R602 R423 R429 C TP888 R89 R829 D20 TP80 TP86 TP860 Q809 R879 OPTICAL PICK-UP BLOCK DAX-A2 I Note: X : parts extracted from the component side. : Through hole. : internal component. b : Pattern from the side which enables seeing. (The other layers' patterns are not indicated.) Caution: Pattern face side: Parts on the pattern face side seen from the (Side B) pattern face are indicated. Parts face side: Parts on the parts face side seen from the (Side A) parts face are indicated. 33 C32 TP89 TP86 TP879 TP878 TP802 R83 RV02 30 TP03 TP308 TP203 TP303 C0 TP722 R C32 R9 TP20 C8 JW0 C308 S80 (OPEN SW) C02 RV03 C2 H C303 2 R07C34 R33 IC60 C60 R34 TP26 TP8 TP6 D03 80 TP28 C28 C6 7 L02 R207 R447 R448 IC404 C202 C20 24 C03 TP80 TP70 TP708 TP707 TP70 TP72 R603 0 C R0 R20 C203 C03 C70 L702 TP706 2 IC02 R820 R48 C0 C04 C IC AVLS LIMIT NORM C808 R7 C09 2 R04 6 R99 R49 C C3 R0 32 C2 R33 IC0 S30 9 C4 C62 G R44 3R437 3 R430 FB R03 R32 TP0 EXCEPT R04 R204 FRENCH FRENCH MODEL R208 MODEL C307 R08 TP30 C206 C06 S30 C324 J302 2 C407 R49 X30 IS30 D0 TP20 IC302 Q409 TP424 C444 C44 R446 TP86 C06 C7 8 R438 R44 C49 C443 C43 R434 R69 4 R B-2 B-7 G-8 C326 R84 R439 R43 R428 C8 F C204 C4 TP46 R2 TP88 TP49 TP709 0 C6 Q06 4 TP TP38 TP36 TP24 40 C7 6 TP3 R87 C TP40 R8 TP7 TP42 TP4 R29 TP6 Q07 Q08 TP60 C38 4 R70 TP88 R3 IC0 9 C706 TP73 L70 TP7 TP74 TP72 C72 TP702 TP704 R R0 24 C427 IS308 RESUME ON OFF TP703 C7078 R702 R44 R38 R809 IC30 20 C36 L S803 R30 R307 TP87 TP30 L304 L302C302 TP3 TP403 C2 Q09 Q Q809 FB304 R308 R440 R306 R08 F-6 G-6 B-7 D-6 D-6 FB303 E M902 SPINDLE MOTOR C306 C33 R C708 9 D407 C47 C424 8 D302 L306 L02 M L303 C323 IC40 C30 S803 L R46 2 C3 C26 30 TP4 C7 30 IC70 0 TP27 C33 R28 C704 TP7 R2 TP46 R4 36 R48 C C439 D47 30 C702 C703 TP79 TP420 CN Q409 Q0 Q06 Q07 Q08 R304 T40 R203 CN703 S90 (LIMIT SW) C42 BT D 4 D-8 B-2 A-2 C-8 C- TP867 TP8 R22 C76 C438 0 Q3 C-3 F-6 Q3 Q40 Q402 Q404 Q40 TP302 CN702 R3 IC70 IC80 R406 TP42 C408 TP402 R409 C4C40 M C04 G-2 C-6 C-7 D-7 E-3 R408 CN70 IC0 IC02 IC03 IC0 IC60 R70 C37 E-7 F-7 D- F- F-6 M90 SLED MOTOR B FB30 IC30 IC302 IC40 IC403 IC404 C C TP407 R44 R43 C406 R47 R42 E C63 C9 C40 C403 TP4 C304 E-3 D46 R37 TP40 R46 Q404 D602 C6 FB40 FB402 D403 C3 TP40 TP78 D40 TP423 TP422 TP77 TP43 FB60 TP44 C42 L04 L07 C TP406 R63 C404 R404 C432 Q40 L202 B C6 C402 IS307 B-0 D-2 C- C-2 C-7 C29 R826 L40 TP4 D403 D407 D46 D47 D03 R403 C428 C40 D402 R Q402 R402 TP47 R40 [MAINBOARD] (SIDE B) J40 C40 [MAINBOARD] (SIDE A) E-0 E-0 E-0 B-7 A-2 GDS D0 D20 D302 D40 D402 Location Q09 Ref. No. C420 R43 r 2 8 ()

15 6-4. SCHEMATIC DIAGRAM r Refer to page 24 for IC Block Diagrams. D-EG/EGCK/EG7 Note: All capacitors are in µf unless otherwise noted. pf: µµf 0 WV or less are not indicated except for electrolytics and tantalums. All resistors are in Ω and /4 W or less unless otherwise specified. : internal component. Note: Note: The components identi- Les composants identifiés fied by mark! or dotted par une marque! sont criline with mark! are cri- tiques pour la sécurité. tical for safety. Ne les remplacer que par Replace only with part une piéce portant le number specified. numéro spécifié. U : B+ Line. H : adjustment for repair. Power voltage is dc 4.V and fed with regulated dc power supply from external power voltage jack. (J40) Voltages and waveforms are dc with respect to ground under no-signal conditions. : 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. J : CD r Waveforms IC02 &ª (XPCK) 2 3 SERVICE MODE during TRK servo OFF 4.2 MHz 36 µsec IC02 # (RFCK) 2.4 Vp-p VOLT/DIV : V AC TIME/DIV : 0.2 µsec 2.9 Vp-p VOLT/DIV : V AC TIME/DIV : 0 µsec 2.9 Vp-p 7 (RFO) 8 T PLAY MODE.8 µsec Vp-p VOLT/DIV : 0.2 V AC TIME/DIV : 0. msec 4. Vp-p VOLT/DIV : V AC TIME/DIV : 2 µsec 9.0 Vp-p IC02 ^ (LRCK) µsec VOLT/DIV : V AC TIME/DIV : 0 µsec T µsec VOLT/DIV : 2 V AC TIME/DIV : 2 µsec 2. Vp-p. Vp-p IC02 &º (BCLK) 0.47 µsec VOLT/DIV : V AC TIME/DIV : 0.2 µsec Q402 GATE.8 µsec VOLT/DIV : 2 V AC TIME/DIV : 2 µsec 2.6 Vp-p 9 Vp-p IC30! (XTLO) MHz VOLT/DIV : V AC TIME/DIV : 0 nsec 2 Q40 BASE.8 µsec VOLT/DIV : 2 V AC TIME/DIV : 2 µsec 3.0 Vp-p.3 Vp-p 4.9 MHz.8 µsec (OSC2) VOLT/DIV : V AC TIME/DIV : 0.2 µsec (VOUT2) VOLT/DIV : 2 V AC TIME/DIV : 2 µsec

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20 7-2. CABINET (REAR) SECTION LCD not supplied not supplied 7 not supplied not supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark BUTTON (VOL) (+) (BLACK, CANADIAN BLACK) BUTTON (VOL) (+) (WHITE) BUTTON (VOL) (-) (BLACK, CANADIAN BLACK) BUTTON (VOL) (-) (WHITE) KNOB (HOLD) (BLACK, CANADIAN BLACK) KNOB (HOLD) (WHITE) SCREW (B2) (WHITE) SCREW (B2) (BLACK, CANADIAN BLACK) SCREW (B2) 6 X BUCKLE ASSY SHEET, RUBBER BUTTON (SOUND) (BLACK, CANADIAN BLACK) BUTTON (SOUND) (WHITE) BUTTON (ESP) (BLACK, CANADIAN BLACK) BUTTON (ESP) (WHITE) BUTTON (OPEN) 6 X PLATE SUB ASSY SCREW (B2) SPRING, TENSION 64 A A BRACKET FRONT (L) ASSY(CANADIAN BLACK) 64 A A BRACKET FRONT (L) ASSY (BLACK) 64 A A BRACKET FRONT (L) ASSY (WHITE) TERMINAL, BATTERY HOLDER (LCD) 67 A A MAIN BOARD, COMPLETE (EXCEPT FR) 67 A A MAIN BOARD, COMPLETE (FR) KNOB (AVLS) (BLACK, CANADIAN BLACK) KNOB (AVLS) (WHITE) INSULATOR CABINET (REAR) (BLACK, CANADIAN BLACK) CABINET (REAR) (WHITE) 7 A A BRACKET REAR (L) ASSY (CANADIAN BLACK) 7 A A BRACKET REAR (L) ASSY (BLACK) 7 A A BRACKET REAR (L) ASSY (WHITE) 72 A A BRACKET FRONT (R) ASSY (CANADIAN BLACK) 72 A A BRACKET FRONT (R) ASSY (BLACK) 72 A A BRACKET FRONT (R) ASSY (WHITE) 73 A A BRACKET REAR (R) ASSY (CANADIAN BLACK) 73 A A BRACKET REAR (R) ASSY (BLACK) 73 A A BRACKET REAR (R) ASSY (WHITE) SCREW,PRECISION +P 2X SHEET, STOPPER LCD DISPLAY PANEL, LCD 29

21 7-3. OPTICAL PICK-UP SECTION (CDM-29AAA) M not supplied 07 M S The components identified by mark! or dotted line with mark! are critical for safety. Replace only with part number specified. Les composants identifiés par une marque! sont critiques pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifié. Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 0 A A SCREW ASSY, FEED SCREW (B.7X6), TAPPING LEAD (WITH CONNECTOR) SPRING, SLED GEAR (B) SCREW (B.7), TAPPING * CHASSIS SLIDE FLEXIBLE BOARD!09 X OPTICAL PICK-UP (DAX-A2) RACK SCREW SCREW,PRECISION +P.4X2. M90 A A MOTOR ASSY, SLED (SLED) (INCLUDING GEAR) M902 A A MOTOR ASSY, TURNTABLE (SPINDLE) S SWITCH ( KEY) (LIMIT) 30

22 SECTION 8 ELECTRICAL PARTS LIST MAIN NOTE : Due to standardization, replacements in the parts list may be different from the parts specified in the diagrams or the components used on the set. -XX, -X mean standardized parts, so they may have some difference from the original one. RESISTORS All resistors are in ohms METAL : Metal-film resistor METAL OXIDE :Metal oxide-film resistor F : nonflammable Items marked * are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. SEMICONDUCTORS In each case, u : µ, for example : ua... : µ A..., upa... : µ PA... upb... : µ PB..., upc... : µ PC... upd... : µ PD... CAPACITORS uf : µ F COILS uh : µ H Abbreviation CND : Canadian FR : French G : German EE : East European The components identified by mark! or dotted line with mark! are critical for safety. Replace only with part number specified. Les composants identifiés par une marque! sont critiques pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifié. When indicating parts by reference number, please include the board. Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark A A MAIN BOARD, COMPLETE (EXCEPT FR) A A MAIN BOARD, COMPLETE (FR) ********************* C CERAMIC CHIP 0.uF 6V C CERAMIC CHIP 0.uF 6V C CERAMIC CHIP uf 0V HOLDER (LCD) < BATTERY TERMINAL > BT TERMINAL, BATTERY BT TERMINAL, BATTERY < CAPACITOR > C CERAMIC CHIP 0.uF 6V C CERAMIC CHIP uf 0V C CERAMIC CHIP 00PF % 0V C CERAMIC CHIP 00PF % 0V C CERAMIC CHIP 0.uF 6V C CERAMIC CHIP uf 0V C CERAMIC CHIP 00PF % 0V C CERAMIC CHIP 00PF % 0V C CERAMIC CHIP 0.uF 6V C CERAMIC CHIP 0.uF 6V C ELECT 220uF 20% 6.3V C ELECT 00uF 20% 0V C CERAMIC CHIP uF 0% 0V C ELECT 0uF 20% 2V C ELECT 0uF 20% 2V C ELECT 330uF 20% 6.3V C CERAMIC CHIP 2.2uF 6V C CERAMIC CHIP uf 0V C METAL CHIP 0 C CERAMIC CHIP uf 0V C CERAMIC CHIP 0.uF 6V C CERAMIC CHIP 00PF % 0V C CERAMIC CHIP 0.22uF 0% 0V C CERAMIC CHIP PF % 0V C CERAMIC CHIP 0.0uF 0% 2V C ELECT 47uF 20% 0V C ELECT 33uF 20% 6.3V C CERAMIC CHIP 47PF % 0V C CERAMIC CHIP 0.uF 0% 2V C CERAMIC CHIP 0.uF 6V C CERAMIC CHIP uf 0V C CERAMIC CHIP 0.00uF 0% 0V C TANTALUM CHIP 0uF 20% 4V C TANTAL. CHIP 22uF 20% 6.3V C CERAMIC CHIP 0.uF 2V C CERAMIC CHIP 0.uF 6V C ELECT 220uF 20% 6.3V C CERAMIC CHIP 0.00uF 0% 0V C CERAMIC CHIP 0.0uF 0% 2V C CERAMIC CHIP 00PF % 0V C TANTAL. CHIP 22uF 20% 6.3V C CERAMIC CHIP uf 0V C CERAMIC CHIP 0.uF 2V C CERAMIC CHIP uf 0V C CERAMIC CHIP uf 0V C CERAMIC CHIP 0.0uF 0% 2V C CERAMIC CHIP uf 0V C CERAMIC CHIP uf 0V C CERAMIC CHIP uf 0V C CERAMIC CHIP 22PF % 0V C CERAMIC CHIP 0.0uF 0% 2V C CERAMIC CHIP 470PF 0% 0V C CERAMIC CHIP uF 0% 0V C CERAMIC CHIP 4.7uF 6V C CERAMIC CHIP 0.uF 6V C CERAMIC CHIP 0.uF 6V C CERAMIC CHIP 0.uF 6V C CERAMIC CHIP uf 0V C CERAMIC CHIP 0.047uF 0% 6V C CERAMIC CHIP 00PF % 0V C CERAMIC CHIP 470PF 0% 0V C CERAMIC CHIP 0.uF 6V C CERAMIC CHIP uf 0% 0V C CERAMIC CHIP uF 0% 0V C CERAMIC CHIP 0.00uF 0% 0V C CERAMIC CHIP uF 0% 0V C CERAMIC CHIP uF 0% 0V C CERAMIC CHIP 2.2uF 0% 0V C TANTAL. CHIP 47uF 20% 4V C CERAMIC CHIP 0.uF 6V C CERAMIC CHIP 0.uF 6V C ELECT 47uF 20% 4V 3

23 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C CERAMIC CHIP 2.2uF 0% 0V C CERAMIC CHIP 00PF % 0V C CERAMIC CHIP 33PF % 0V C CERAMIC CHIP uf 0V C CERAMIC CHIP 0.22uF 6V C CERAMIC CHIP 22PF % 0V C CERAMIC CHIP 0.uF 0% 6V C CERAMIC CHIP 0.0uF 0% 2V C CERAMIC CHIP 0.0uF 0V C TANTAL. CHIP 47uF 20% 4V C CERAMIC CHIP uf 0V C CERAMIC CHIP 0.uF 0% 6V C ELECT 47uF 20% 4V C CERAMIC CHIP 0.047uF 0% 6V C CERAMIC CHIP 0.uF 0% 6V C CERAMIC CHIP 0.0uF 0% 2V C TANTAL. CHIP 22uF 20% 6.3V C CERAMIC CHIP 0.uF 6V C CERAMIC CHIP 0.47uF 0V C CERAMIC CHIP 00PF % 0V C CERAMIC CHIP 00PF % 0V C CERAMIC CHIP PF 0.2PF 0V C CERAMIC CHIP 0.uF 6V C CERAMIC CHIP 0.uF 6V C ELECT 22uF 20% 0V C CERAMIC CHIP 0.uF 6V C TANTALUM CHIP 0uF 20% 4V C CERAMIC CHIP 00PF % 0V C CERAMIC CHIP 0.uF 0% 6V C CERAMIC CHIP 0.uF 0% 6V C CERAMIC CHIP 0.uF 6V C CERAMIC CHIP 0PF % 0V C CERAMIC CHIP 220PF % 0V C CERAMIC CHIP 220PF % 0V C CERAMIC CHIP 220PF % 0V C CERAMIC CHIP uF 0% 0V C CERAMIC CHIP uf 6V C CERAMIC CHIP uf 0V C CERAMIC CHIP uf 0V C CERAMIC CHIP uf 0V C CERAMIC CHIP uf 0V C CERAMIC CHIP uf 0V C CERAMIC CHIP uf 0V C CERAMIC CHIP 0.uF 6V < CONNECTOR > CN CONNECTOR, FPC (ZIF) 4P * CN PIN, CONNECTOR (.MM)(SMD) 2P * CN PIN, CONNECTOR (.MM)(SMD) 2P CN PIN, CONNECTOR (.MM)(SMD) 2P < DIODE > D DIODE UDZ-TE-7-.B D DIODE UDZ-TE-7-.B D DIODE UDZ-TE-7-.B D DIODE RB60L-40TE2 D DIODE SS367-T3SONY D DIODE SS374-TE8L D DIODE RB0V-40TE-7 D DIODE RB60L-40TE2 D DIODE MA8068-TX D DIODE SS300-TE8L D DIODE RB0V-40TE-7 < FERRITE BEAD > FB FERRITE FB FERRITE FB FERRITE FB INDUCTOR CHIP uh FB INDUCTOR CHIP uh FB FERRITE FB FERRITE FB FERRITE FB METAL CHIP 0 FB FERRITE < IC > IC IC TC9438FNEL IC IC TA220FN(EL) IC IC MPC8A26VMEL IC IC TC7SF IC IC TA7S393F-TE8R IC IC BA6386K IC IC BU9326KS IC IC NJU702F-TE2 IC IC TC7S66FU-TE8L IC IC SM904BF IC IC MPC7AVMEL IC IC MC68HC0LSC44272CPB < JACK > J JACK (2) J JACK,DC (POLARITY UNIFIED TYPE) (DC IN 4.V) < JUMPER RESISTOR > JW METAL CHIP 0 JW METAL CHIP 0 < COIL > L FERRITE 4.7uH L FERRITE 4.7uH L INDUCTOR 4.7uH L INDUCTOR 4.7uH L INDUCTOR 4.7uH L INDUCTOR 4.7uH L FERRITE 4.7uH L INDUCTOR 0uH L INDUCTOR 00uH L INDUCTOR 0uH L INDUCTOR 0uH L INDUCTOR 0uH L INDUCTOR 0uH L INDUCTOR 47uH L INDUCTOR 47uH 32

24 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark LCD < LIQUID CRYSTAL DISPLAY > DISPLAY PANEL, LCD < TRANSISTOR > R RES,CHIP 33K 0.0% /6W R METAL CHIP 0 % /6W R METAL CHIP K % /6W R RES,CHIP 2.2M % /6W R RES,CHIP.M 0.% /6W Q TRANSISTOR DTA44TUA-T06 Q TRANSISTOR 2SD23T00V Q TRANSISTOR MMBF020NLT Q TRANSISTOR 2SB82F-QR-TLQR Q TRANSISTOR 2SD664-T00-QR Q TRANSISTOR DTA4TUA-T06 Q TRANSISTOR 2SA62G-TE8L Q TRANSISTOR DTC24EUA-T06 Q TRANSISTOR DTA4TUA-T06 Q TRANSISTOR DTA4TUA-T06 Q TRANSISTOR 2SC46GL-TE8L Q TRANSISTOR DTC24EUA-T06 Q TRANSISTOR 2SC46GL-TE8L < RESISTOR > R METAL CHIP 4.7K % /6W R METAL CHIP 22K % /6W (EXCEPT FR) R METAL CHIP 0K 0.% /6W (FR) R RES,CHIP 4.7 % /6W R RES,CHIP 0K % /6W R METAL CHIP 4.7K % /6W R METAL CHIP 22K % /6W (EXCEPT FR) R METAL CHIP 0K 0.% /6W (FR) R RES,CHIP 4.7 % /6W R RES,CHIP 0K % /6W R METAL CHIP 33 % /6W R METAL CHIP 0 % /6W R METAL CHIP K % /6W R METAL CHIP 0 % /6W R RES,CHIP 4.7 % /8W R METAL CHIP 330 % /6W R METAL CHIP 0 % /6W R RES,CHIP 470K 0.0% /6W R RES,CHIP 0K 0.0% /6W R METAL CHIP 2.2K % /6W R METAL CHIP % /6W R METAL CHIP 3.3 % /0W R METAL CHIP 00 % /6W R METAL CHIP 22K % /6W R METAL CHIP 00K % /6W R METAL CHIP 00K % /6W R METAL CHIP 330 % /6W R METAL CHIP 2.2 % /0W R METAL CHIP 2.2 % /0W R METAL CHIP 0 % /6W R METAL CHIP 220K % /6W R RES,CHIP 0K % /6W R METAL CHIP 470K % /6W R RES,CHIP 00K % /6W R RES,CHIP 00K 0.0% /6W R RES,CHIP 60K 0.% /6W R RES,CHIP 0K % /6W R RES,CHIP 2.2M % /6W R RES,CHIP 60K 0.% /6W R METAL CHIP 0 % /6W R RES,CHIP 470K % /6W R RES,CHIP.M 0.% /6W R RES,CHIP 00K 0.% /6W R RES,CHIP 33K 0.% /6W R RES,CHIP 0K 0.% /6W R METAL CHIP 2.2K % /6W R METAL CHIP 3.3K % /6W R METAL CHIP 4.7K % /6W R METAL CHIP 33K % /6W R RES,CHIP 4.7 % /8W R RES,CHIP 0K % /6W R METAL CHIP 4.7K % /6W R RES,CHIP 0K % /6W R METAL CHIP K % /6W R METAL CHIP K % /6W R RES,CHIP 0K % /6W R RES,CHIP 0K % /6W R METAL CHIP 4.7K % /6W R METAL CHIP K % /6W R METAL CHIP 0 % /6W R METAL CHIP 6.8K % /6W R METAL CHIP 3.3K % /6W R METAL CHIP 220K % /6W R METAL CHIP K % /6W R METAL CHIP 4.7K % /6W R METAL CHIP 0 % /6W R RES,CHIP 0K % /6W R METAL CHIP 47K % /6W R RES,CHIP 0K % /6W R METAL CHIP 4.7K % /6W R RES,CHIP 0K % /6W R METAL CHIP 330K % /6W R RES,CHIP 0K % /6W R METAL CHIP 0 % /6W R METAL CHIP 0 % /6W R METAL CHIP 220K % /6W R METAL CHIP 2.2K % /6W R METAL CHIP 2.2K % /6W R RES,CHIP 0K % /6W R METAL CHIP 0 % /6W R METAL CHIP 00K % /6W R METAL CHIP 00K % /6W R METAL CHIP 4.7K % /6W R METAL CHIP 47K % /6W R METAL CHIP 330K % /6W R RES,CHIP 0K % /6W R METAL CHIP 0 % /6W R METAL CHIP 0 % /6W 33

25 D-EG/EGCK/EG7 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R METAL CHIP 0 % /6W R METAL CHIP 2.2K % /6W MISCELLANEOUS ************** R METAL CHIP K % /6W R METAL CHIP 330K % /6W R METAL CHIP 330K % /6W (EXCEPT FR) R RES,CHIP 0K % /6W R METAL CHIP 0 % /6W R METAL CHIP K % /6W R METAL CHIP M % /6W R METAL CHIP K % /6W R METAL CHIP 6.8K % /6W R METAL CHIP 4.7K % /6W R METAL CHIP 3.3K % /6W R METAL CHIP 2.2K % /6W R METAL CHIP.K % /6W R METAL CHIP K % /6W R METAL CHIP K % /6W R METAL CHIP 0 % /6W R METAL CHIP 0 % /6W R METAL CHIP K % /6W R METAL CHIP 47K % /6W R METAL CHIP M % /6W < VARIABLE RESISTOR > RV RES, ADJ, CARBON 22K (TRACKING GAIN) RV RES, ADJ, CARBON 22K (FOCUS GAIN) < SWITCH > S SWITCH, SLIDE (AVLS) S SWITCH, PUSH ( KEY) (OPEN SW) S SWITCH, SLIDE (RESUME) S SWITCH, SLIDE (HOLD c) S SWITCH, KEY BOARD (REPEAT/ENTER) S SWITCH, KEY BOARD (ESP) S SWITCH, KEY BOARD (VOLUME + ) S SWITCH, KEY BOARD (p) S SWITCH, KEY BOARD (PLAY MODE) S SWITCH, KEY BOARD (=) S SWITCH, KEY BOARD (+) S SWITCH, KEY BOARD (^) S SWITCH, KEY BOARD (SOUND) S SWITCH, KEY BOARD (VOLUME - ) < TRANSFORMER > T TRANSFORMER, DC-DC CONVERTER < VIBRATOR > X VIBRATOR, CERAMIC (6.9MHz) X VIBRATOR, CERAMIC (4.943MHz) ************************************************************** SLIDE FLEXIBLE BOARD LEAD (WITH CONNECTOR)!09 X OPTICAL PICK-UP (DAX-A2) LCD DISPLAY PANEL, LCD M90 A A MOTOR ASSY, SLED (SLED) (INCLUDING GEAR) M902 A A MOTOR ASSY, TURNTABLE (SPINDLE) S SWITCH ( KEY) (LIMIT) ************************************************************** ACCESSORIES & PACKING MATERIALS ******************************* CONNECTING PACK, CAR (EGCK)! ADAPTOR, AC (AC-E4)(EG7:AUS)! ADAPTOR, AC (AC-E4) (EGCK, EG/EG7:US,CND)! ADAPTOR, AC (AC-E4D)(EG7:UK)! ADAPTOR, AC (AC-E4D) (EG7:AEP,FR,G,E,EE) FUSE, GLASS TUBE (EGCK)! ADAPTOR, CONVERSION 2P (EG7:E) CORD, CAR BATTERY (EGCK) MANUAL, INSTRUCTION (FRENCH)(EGCK) MANUAL, INSTRUCTION (ENGLISH)(EGCK) MANUAL, INSTRUCTION (SPANISH)(AEP) MANUAL, INSTRUCTION (ENGLISH) (EXCEPT G, E) MANUAL, INSTRUCTION (FRENCH) (CND, AEP, FR) MANUAL, INSTRUCTION (DUTCH)(AEP,EE) MANUAL, INSTRUCTION (SWEDISH)(AEP) MANUAL, INSTRUCTION (PORTUGUESE)(AEP) MANUAL, INSTRUCTION (GERMAN)(AEP,G) MANUAL, INSTRUCTION (ITALIAN)(AEP) MANUAL, INSTRUCTION (FINNISH)(AEP) MANUAL, INSTRUCTION (CHINESE)(E) MANUAL, INSTRUCTION (ENGLISH)(E) MANUAL, INSTRUCTION (RUSSIAN)(EE) MANUAL, INSTRUCTION (POLISH)(EE) MANUAL, INSTRUCTION (CZECH)(EE) MANUAL, INSTRUCTION (HUNGARIAN)(EE) STRAP (BLACK), BELT (EG7) STRAP (WHITE), BELT (EG7) STRAP, HAND (EG/EGCK) HEADPHONE MDR-G0LP/B2 SET (EG7) HEADPHONE MDR-24/ SET (EG/EGCK) The components identified by mark! or dotted line with mark! are critical for safety. Replace only with part number specified. Les composants identifiés par une marque! sont critiques pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifié Sony Corporation Personal Audio Company 34 99D0290- Printed in Japan Published by General Engineering Dept.