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

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

2 TABLE OF CONTENTS 1. GENERAL DISASSEMBLY... 4 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. 3. ELECTRICAL ADJUSTMENTS DIAGRS 4-1. Block Diagram Printed Wiring Board Schematic Diagram EXPLODED VIEW ELECTRICAL PARTS LIST... 14

3 SECTION 1 GENERAL This section is extracted from instruction manual. 3

4 Note: Follow the disassembly procedure in the numerical order given. SECTION DISASSEMBLY MAIN BOARD 1 two screws (P 8) 4 main board 3 cabinet (rear) four claws two claws 5 cabinet (front) DIAL POINTER SETTING Note: Follow the assembly procedure in the numerical order given. pointer 1 Mount the pointer as shown in the figure A. 4 main board fig. A 3 Turn CV1 fully in the arrow direction. Mount the knob (TUNE) as shown in the figure B. knob (TUNE) cabinet (front) 4 fig. B

5 SECTION 3 ELECTRICAL ADJUSTMENTS 0 db = 1 µv [] Setting: BAND switch: RF signal generator 30% amplitude modulation by 400 Hz signal Output level: as low as possible [] Setting: BAND switch: RF signal generator Put the lead-wire antenna close to the set µf set.5 khz frequency deviation by 400 Hz signal Output level: as low as possible TP (RF IN) set 4 Ω Repeat the procedures in each adjustment several times, and the frequency coverage and tracking adjustments should be finally done by the timmer capacitors. jack (HPJ1) 4 Ω level meter level meter FREQUENCY COVERAGE ADJUSTMENT Adjust for a maximum reading on level meter L3 50 khz CT1 (3/4) 1,750 khz jack (HPJ1) nd Local Frequency (57.1 MHz) Setting: BAND switch: Procedure: 1. Connect the frequency counter to TP (OSC).. Adjust L for MHz reading on the frequency counter. Specification values: 56.5 to 57.0 MHz Connection: STEREO (38 khz) Setting: BAND switch: Procedure: 1. Connect 10 µf Capacitor between TP (38 khz) and TP (GND).. Connect the frequency counter to TP (VCO). 3. Adjust L4 for 38 khz reading on the frequency counter. 4. Disconnect 10 µf Capacitor in step 1. Specification values: to khz Connection: TP (OSC) TP (VCO) 1 µf 50 V 1 µf 50 V frequency counter frequency counter TRACKING ADJUSTMENT Adjust for a maximum reading on level meter L5 600 khz CT1 (4/4) 1,400 khz FREQUENCY COVERAGE ADJUSTMENT Adjust for a maximum reading on level meter L MHz CT1 (1/4) MHz TRACKING ADJUSTMENT Adjust for a maximum reading on level meter L MHz CT1 (/4) MHz 5

6 Adjsutment Location: MAIN BOARD (Component Side) L3 Frequency Coverage HPJ1 L5 Tracking L nd Local Frequency (57.1 MHz) L4 L4 Stereo (38 khz) L6 Frequency Coverage L1 Tracking MAIN BOARD (Conductor Side) CT1 (4/4) Tracking CT1 (3/4) Frequency Coverage CT1 (1/4) 10 µf Stereo (38 khz) Frequency Coverage TP (GND) TP (38 khz) TP (OSC) TP (RF IN) IC1 TP (VCO) CT1 (/4) Tracking 6

7 SECTION 4 DIAGRS SRF-PSY BLOCK DIAGR DX S1 SENS CT1 (1/4), L6 FREQUENCY COVERAGE L6 OSC LOCAL B.P.F. BPF1 / RF, IF, MIX, OSC,, AGC, AF IC RF IN TV RF IN TV OSC OSC TV/ RF TV/ TV/ TV/ MIX 1st LOCAL OSC π/ MIX 1 MIX 0 1/ COUNTER PSN 1 PSN L.P.F. L.P.F. LIMITER IF DISCRI AF UNE TUNING INDICATOR OUT 11 1 MPX IN STEREO DECODER PD SYNC 19kHz π/ 19kHz 0 SEP. CONTROL 1/ COUNTER DC BUFFER VCO LOUT 16 ROUT 17 PLL VCO 19 38kHz L4 STEREO (38kHz) B L5 FERRITE-ROD ANTENNA CT1 (1/4) CV1 (1/4) RF IN RF RF ND OSC nd LOCAL OSC OSC / IF TUN IND / TV/ / SELECT TV/ SELECT PLL PLL1 PD PD1 MONO/STEREO, STEREO INDICATOR ST IND 15 CT1 (4/4), L TRACKING CT1 (4/4) CV1 (4/4) L1 RF L3 OSC CT1 (/4), L1 TRACKING CV1 TUNE CT1 (/4) CV1 (/4) L ND OSC ND LOCAL FREQUENCY (57.1MHz) CV1 CT1 (3/4) (3/4) CT1 (3/4), L3 FREQUENCY COVERAGE S-1 BAND B S- BAND B HEADPHONE IC 1 4 IN IN POWER POWER OUT OUT 7 9 HPJ1 (HEADPHONE) RV1 VOL SIGNAL PATH : S3 POWER ON OFF 05 : B DRY BATTERY SIZE AA (IEC DESIGNATION R6) 1PCS. 1.5V 7 8

9 SRF-PSY SCHEMATIC DIAGR IC Block Diagram IC1 CXA119N-T4 IN TV IN NC RF GAIN ADJ OL AGC ND OSC OSC TUN IND PLL1 PLL VCO OSC VCO CONT R OUT L OUT /TV /TV /TV RF OVER LOAD AGC 0 π/ LOCAL OSC 1/ COUNTER / /TV SELECT DISCRI 19 VCO 38KHz 18 VCO LEVEL CONTROL 17 R CH 16 L CH /TV /TV MIX /TV 1ST LOCAL OSC AGC RF MIX 1 MIX AFC PSN 1 PSN AF LPF LPF BPF UNE LIMITTER IF ( TUN IND) AGC TUNING IND 1/ COUNTER NC IN AGC1 OSC TV OSC NC IF NC AGC MUTE OUT MUTE SEP CONTROL ST. DECORDER INPUT BUFF MPX IN BUFF DC PD SYNC 38KHz 19KHz π/ 19KHz 0 / / SELECT M/ST.SW ST.IND PD1 PD LOAD SELECT ST IND Note on Schematic Diagram: 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 /4 W or less unless otherwise specified. : internal component. C : panel designation. U : B Line. H : adjustment for repair. Power voltage is dc 1.5 V and fed with regulated dc power supply from battery terminal. Voltages are dc with respect to ground under no-signal (detuned) conditions. no mark : ( ) : Voltages are taken with a VOM (Input impedance 10 MΩ). Voltage variations may be noted due to normal production tolerances. Signal path. F : f : 11 1

10 SECTION 5 EXPLODED VIEW MAIN SECTION 6 ELECTRICAL PARTS LIST NOTE: -XX and -X mean standardized parts, so they may have some difference from the original one. Color Indication of Appearance Parts Example: KNOB, BALANCE (WHITE)... (RED) Parts Color Cabinet's Color Items marked * are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. The mechanical parts with no reference number in the exploded views are not supplied. Accessories and packing materials are given in the last of the electrical parts list. not supplied 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 and -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.. : µa.. upa.. : µpa.. upb.. : µpb.. upc.. : µpc.. upd.. : µpd.. CAPACITORS uf: µf COILS uh: µh When indicating parts by reference number, please include the board. Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3 not supplied 9 6 * A A MAIN BOARD, COMPLETE ********************* < BAND PASS FILTER > BPF FILTER, BAND PASS < CAPACITOR > C CERIC CHIP PF 5% 50V C ELECT 4.7uF 0% 50V C CERIC CHIP 100PF 5% 50V C CERIC CHIP 3PF 0.5PF 50V C CERIC CHIP 0.001uF 5% 50V < VARIABLE CAPACITOR > CV CAP, VAR (TUNE) < DIODE > D DIODE 1SS133T-77 D DIODE 1SS133T-77 < JACK > HPJ JACK, HEADPHONE () < IC > C CERIC CHIP 1uF 16V C CERIC CHIP 0.1uF 10% 5V C CERIC CHIP 0.uF 5V C CERIC CHIP 0.015uF 5% 50V C CERIC CHIP 0.015uF 5% 50V C CERIC CHIP 1uF 16V C CERIC CHIP 1uF 16V C CERIC CHIP 4PF 50V C CERIC CHIP 1uF 16V C CERIC CHIP 30PF 5% 50V C ELECT.uF 0% 50V C CERIC CHIP 0.1uF 5V C ELECT 100uF 0% 16V C ELECT 4.7uF 0% 50V C ELECT 1uF 0% 50V C ELECT 10uF 0% 16V C ELECT 1uF 0% 50V C CERIC CHIP 100PF 5% 50V C CERIC CHIP 100PF 5% 50V C ELECT 47uF 0% 6.3V IC IC CXA119N-T4 IC IC LA4537M < SHORT > J SHORT 0 J SHORT 0 J SHORT 0 J SHORT 0 J SHORT 0 < COIL > L COIL, AIR-CORE L COIL, AIR-CORE L COIL ( OSC) L COIL (VCO) L ANTENNA, FERRITE-ROD () L COIL, AIR-CORE L COIL, TRAP < RESISTOR > Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark CABINET (FRONT) (BLUE) CABINET (FRONT) (VIOLET) KNOB (POWER) (BLACK)... (VIOLET) KNOB (POWER) (YELLOW)... (BLUE) PLATE, TRANSPARENT (for BLUE) PLATE, TRANSPARENT (for VIOLET) POINTER (ORANGE)... (BLUE) POINTER (BLUE)... (VIOLET) * 5 A A MAIN BOARD, COMPLETE GUARD (BLUE)... (VIOLET) GUARD (YELLOW)... (BLUE) LID, BATTERY CASE (BLUE) LID, BATTERY CASE (VIOLET) TAPPING P X8 NON-SLIT CABINET (REAR) (BLUE) CABINET (REAR) (VIOLET) KNOB (TUNE) SPRING, BATTERY TERMINAL, BATTERY CLIP CHAIN C CERIC CHIP 0.1uF 10% 5V C ELECT 0.1uF 0% 50V C ELECT 0.1uF 0% 50V C ELECT 330uF 0% 6.3V C ELECT 47uF 0% 6.3V C ELECT 47uF 0% 6.3V C CERIC CHIP 100PF 5% 50V C CERIC CHIP 0.001uF 5% 50V C CERIC CHIP 0.001uF 5% 50V C CERIC CHIP PF 50V < TRIMMER > CT CAP, VAR R METAL CHIP 3.3K 5% 1/10W R METAL CHIP 40 5% 1/10W R METAL CHIP 3.3K 5% 1/10W R METAL CHIP 3.3K 5% 1/10W R RES, CHIP 1K 5% 1/10W R METAL CHIP 6.8 5% 1/10W R METAL CHIP 3.3 5% 1/10W R METAL CHIP 3.3 5% 1/10W R METAL CHIP 10K 5% 1/10W < VARIABLE RESISTOR > RV RES, VAR, CARBON 0K/0K (VOL) 13 14

11 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < SWITCH > S SWITCH, SLIDE ( SENS) S SWITCH, SLIDE (BAND) S SWITCH, SLIDE (POWER) ************************************************************** ACCESSORIES & PACKING MATERIALS ******************************** MANUAL, INSTRUCTION (ENGLISH) (US) HEADPHONE, STEREO MDR-4//C5SET 15

12 SRF-PSY Sony Corporation Personal A&V Products Company 16 99D Printed in Singapore Published by Quality Engineering Dept. (Shinagawa)

SPECIFICATIONS. Power output 3.6mW + 3.6mW (at 10% harmonic distortion) Power requirements 1.5 V DC, one R03 (rize AAA)

SPECIFICATIONS. Power output 3.6mW + 3.6mW (at 10% harmonic distortion) Power requirements 1.5 V DC, one R03 (rize AAA) SERVICE MANUAL Ver. 004.05 E Model Australian Model Chinese Model Tourist Model SPECIFICATIONS Frequency range : 87.5-08 MHz (EXCEPT Tourist model) : 76-08 MHz (Tourist model) : 530-605kHz Output (stereo