Illustration : MDR-IF330R SPECIFICATIONS

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1 MDR-IF230/IF330R SERVICE MANUAL Ver US Model Canadian Model E Model Australian Model MDR-IF230/IF330R Tourist Model MDR-IF330R Illustration : MDR-IF330R MDR-IF230 is the component model block one in the MDR-IF130K or MDR-IF230RK. MDR-IF330R is the component model block one in the MDR-IF330RK. COMPONENT MODEL NAME FOR MDR-IF130K/IF230RK/IF330RK MDR-IF130K MDR-IF230RK MDR-IF330RK Cordless Headphones MDR-IF230 MDR-IF230 MDR-IF330R Transmitter TMR-IF130 TMR-IF230R TMR-IF330R SPECIFICATIONS Headphone Charging and using hours (MDR-IF330R) Approx. charging hours Approx. using hours* ** 30 * at 1kHz 1mW + 1mW output ** the hours required to fully charge an cmpty battery Battery life* (MDR-IF230/IF330R) Battery Approx. hours Sony alkaline battery LR6(SG) 100 Sony battery R6P(SR) 50 * at 1kHz 1mW + 1mW output Power source Supplied Ni-Cd rechargeable battery NC-AA(HJ) or commercially available R6 (size AA) dry battery Mass Approx. 180g (6.oz.) including battery Supplied Ni-Cd rechargeable battery Model name NC-AA (HJ) Type Ni-Cd Voltage 1.2V Capacity 600mAh Design and specifications are subject to change without notice. CORDLESS STEREO HEADPHONES MICROFILM

2 r The equipment can be remo ved using the f ollo wing pr ocedure. Set Cover (R), hanger RX board Cover (L), hanger PD board Note : Follow the disassembly procedure in the numerical order given RX BOARD REMOVAL SECTION 1 DISASSEMBLY Cover (R), hanger 6 5 Screw +P (2x6) 7 Screws +P (2x6) RX board 2 Screw (M 1.7x) Hanger (R) 3 SP2 Pat, ear 1 Screw +P (2x6) 1-2. PD BOARD REMOVAL Pat, ear 2 Screw (M 1.7x) 5 Screw +P (2x6) Screws +P (2x6) Lid, battery case Hanger (L) SP1 Screw +P (2x6) 7 6 PD board Cover (L), hanger 2

3 SECTION 2 ELECTRICAL ADJUSTMENT TMR-IF330R Note : 1. The transmitter section adjustments should be completed before performing the headphones section adjustment. 2. On adjusting the headphones section, use the transmitter as a jig. Headphones Transmitter TMR-IF130 MDR-IF230 or TMR-IF230R MDR-IF330R TMR-IF330R 3. The headphones section adjustment must be made with PD board connected to the RX board with the specified wire.. The MUTE ON POINT adjustment must be made while taking care of the photodiodes (D1, D2, D101, D102) not to be exposed directly to external lights (such as incandescent lamp and sun light). TUNING Adjustment Preparation : AF OSC AUDIO IN B jack (J1) 1kHz 25mV ( 10dB) Jig ATT 600 Ω Transmitter J power supply (DC 9V) 1. Feed a signal to jig (transmitter) and connect a power supply to DC IN 9V jack (J). 2. Appl y DC 1.2V between (VCC) and (GND) on the RX board. 3. Set the R V1 (VOL) on the RX boar d to the minim um position. MUTE ON POINT Adjustment Connection and Adjustments Location : [RX BOARD] (Conductor side) 51 (R-CH) level meter (VCC) (GND) regulated DC power suppluy (GND) (output :1.2V DC) Connection and Adjustment Location : [RX BOARD] (Conductor side) distortion meter Procedure : 1. Connect the distor tion meter to 31 (L-c h) and 51 (R-c h). 2. Turn on the po wer. 3. Adjust with L32 (L-ch) and L53 (R-ch) to minimize the reading on the distor tion meter. regulated DC power suppluy RV2 : Mute ON point Adjustment RV (R-CH) 31 C35 51 C55 RV1 (VOL) 31 (L-CH) 51 (R-CH) (VCC) (GND) (output :1.2V DC) 51 (GND) 31 L53 C35 C L32 (VCC) (SW) L32 : Tuning Adjustment (L-CH) Procedure : 1. Shor t the cir cuit between 2 and Note down the level meter read at this time. 3. Release the shor t-cir cuit between 2 and 3.. Adjust R V2 so that the le vel meter read is 5dB to 10dB belo w the value noted down at step 2. L53 : Tuning Adjustment (R-CH) L 1 C 3 (VCC) (SW) FM RF signal generator 10kΩ 0.1µF (SIG) L 1 C 3 (SIG) Carrier frequency : 2.8MHz Modulation : 1kHz Deviation : 16kHz Output level : 3dB µv 3

5 MDR-IF230/IF330R 3-2. SCHEMATIC DIAGRAM Note: All capacitors are in µf unless otherwise noted. pf: µµf 50 WV or less are not indicated except for electrolytics and tantalums. All resistors are in Ω and 1 / W or less unless otherwise specified. : internal component. U : B+ Line. H : adjustment for repair. Power voltage is dc 1.2V and fed with regulated dc power supply from battery terminal. Voltages are dc with respect to ground under no-signal conditions. Signal path. F : AUDIO J : RF 7 8

6 Ver SECTION EXPLODED VIEW PD RX SECTION 5 ELECTRICAL PARTS LIST NOTE : -XX, -X mean standardized parts, so they may have some difference from the original one. Items marked * are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. 9 2 The mechanical parts with no reference number in the exploded views are not supplied. 8 3 IF330R 5 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 When indicating parts by reference number, please include the board. Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark * PD BOARD ********* C CERAMIC CHIP 1uF 16V C CERAMIC CHIP 0.1uF 10% 25V LID, BATTERY CASE TERMINAL (+), CHARGE (IF330R) TERMINAL (-), CHARGE (IF330R) SCREW +P 2X6 TYPE2 NON-SLIT BAND, HEAD (IF230) BAND, HEAD (IF330R) HOLDER, BALL SHAFT PAT, EAR COVER, TERMINAL (IF330R) SUSPENDER SP SPRING, SUSPENDER HANGER (R) HANGER (L) COVER (R), HANGER (IF230) COVER (R), HANGER (IF330R) SP IF330R Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark COVER (L), HANGER (IF230) COVER (L), HANGER (IF330R) WINDOW (R), RAY CATCHER WINDOW (L), RAY CATCHER PLATE (R), FRONT PLATE (L), FRONT TERMINAL BOARD (+), BATTERY * 20 A A RX BOARD, COMPLETE * PD BOARD TERMINAL (+), BATTERY TERMINAL (CHARGE), BATTERY (IF330R) TERMINAL ( ), BATTERY SCREW M 1.7X SP SPEAKER (L-CH) SP SPEAKER (R-CH) TERMINAL (+), BATTERY TERMINAL (CHARGE), BATTERY TERMINAL ( ), BATTERY < DIODE > D LED PP508 (INFRARED SENSOR) D LED PP508 (INFRARED SENSOR) ************************************************************ * A A RX BOARD, COMPLETE ******************* < CAPACITOR > C ELECT CHIP 7uF 20% V C CERAMIC CHIP 0.01uF 50V C CERAMIC CHIP 0.01uF 50V C CERAMIC CHIP 0.1uF 50V C ELECT CHIP 220uF 20% V C CERAMIC CHIP 560PF 5% 50V C CERAMIC CHIP 1uF 16V C CERAMIC CHIP 150PF 5% 50V C CERAMIC CHIP 150PF 5% 50V C CERAMIC CHIP 330PF 5% 50V C ELECT CHIP 7uF 20% V C ELECT CHIP 220uF 20% V C CERAMIC CHIP 1uF 16V C CERAMIC CHIP 10PF 50V C CERAMIC CHIP 91PF 5% 50V C CERAMIC CHIP 0.1uF 50V C CERAMIC CHIP 56PF 5% 50V C CERAMIC CHIP 0.068uF 10% 25V C CERAMIC CHIP 0.22uF 25V C CERAMIC CHIP 1uF 16V C CERAMIC CHIP 0.1uF 50V C CERAMIC CHIP 180PF 5% 50V C CERAMIC CHIP 0.1uF 50V C CERAMIC CHIP 0.1uF 50V C CERAMIC CHIP 0.068uF 10% 25V C CERAMIC CHIP 0.22uF 25V C CERAMIC CHIP 1uF 16V C CERAMIC CHIP 0.1uF 50V C CERAMIC CHIP 0.001uF 10% 50V C CERAMIC CHIP 0.001uF 10% 50V C CERAMIC CHIP 0.007uF 5% 50V < DIODE > D LED PP508 (INFRARED SENSOR) D LED PP508 (INFRARED SENSOR) D LED SA2512 (POWER) < FILTER > FL FILTER, BAND PASS FL FILTER, BAND PASS < IC > IC IC TA2056FN-EL IC IC NJM2076M(TE2) < JUMPER RESISTOR > JC METAL CHIP 0 5% 1/10W < COIL > L INDUCTOR CHIP 27uH L INDUCTOR CHIP 33uH L COIL (DET) L INDUCTOR CHIP 33uH L INDUCTOR CHIP 39uH L COIL (DET) < TRANSISTOR > Q TRANSISTOR 2SK209-G Q TRANSISTOR 2SC2712-YG Q TRANSISTOR 2SC2712-YG Q TRANSISTOR 2SA1182-0(TE85L) Q TRANSISTOR 2SA1182-0(TE85L) Q TRANSISTOR UMA Q TRANSISTOR UMW1 < RESISTOR > R METAL CHIP 1.5K 5% 1/10W 9 10

7 RX Ref. No. Part No. Description Remark R RES,CHIP 7K 5% 1/10W R RES,CHIP 1K 5% 1/10W R METAL CHIP 1.5K 5% 1/10W R METAL CHIP 22K 5% 1/10W R RES,CHIP 560 5% 1/10W R METAL CHIP 3.6K 5% 1/10W R METAL CHIP 33K 5% 1/10W R METAL CHIP 33K 5% 1/10W R METAL CHIP 10K 5% 1/10W R METAL CHIP 3.3K 5% 1/10W R METAL CHIP 2.7K 5% 1/10W R RES,CHIP 100 5% 1/10W R METAL CHIP 2.2 5% 1/10W R METAL CHIP 3.3K 5% 1/10W R METAL CHIP 2.7K 5% 1/10W R RES,CHIP 100 5% 1/10W R METAL CHIP 2.2 5% 1/10W R RES,CHIP 100 5% 1/10W R RES,CHIP 7K 5% 1/10W R RES,CHIP 7K 5% 1/10W R METAL CHIP 10K 5% 1/10W R RES,CHIP 100 5% 1/10W < VARIABLE RESISTOR > RV RES, VAR, CARBON 50K/50K (ÁVOL) RV RES, ADJ, CERMET 2.2K (MUTE ON POINT) ************************************************************ MISCELLANEOUS *************** SP SPEAKER (L-CH) SP SPEAKER (R-CH) 11

8 MDR-IF230/IF330R Sony Corporation Personal A&V Products Company 12 98E Printed in Singapore Published by Quality Engineering Dept. (Shibaura)

SRF-PSY03 SERVICE MANUAL FM STEREO/AM RADIO. US Model SPECIFICATIONS. Photo: Violet model MICROFILM

SRF-PSY03 SERVICE MANUAL FM STEREO/AM RADIO. US Model SPECIFICATIONS. Photo: Violet model MICROFILM SRF-PSY03 SERVICE MANUAL US Model Photo: Violet model SPECIFICATIONS STEREO/ RADIO MICROFILM TABLE OF CONTENTS 1. GENERAL... 3. DISASSEMBLY... 4 Notes on chip component replacement Never reuse a disconnected