SONY SRSA25
Service Manual

SECTION 3 EXPLODED VIEW
NOTE : � -XX, -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. � Hardware (# mark) list and accessories and packing materials are given in the last of this parts list.

SRS-A15/A25/PC15 AMPLIFIER
NOTE : 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. � 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. Ref. No. * Part No. Description

SECTION 4 ELECTRICAL PARTS LIST
� 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 SP : Singapore AUS : Australian HK : Hong Kong C&SA : Central and South America

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.

#2

8 7 17 9 11

Remark

Ref. No. R6 R7

Part No.

Description 10K 10K 5% 5%

Remark 1/4W 1/4W

A-4542-508-A AMPLIFIER BOARD, COMPLETE ************************* < CAPACITOR >

#1 #2

1-249-429-11 CARBON 1-249-429-11 CARBON

8
#1 #2

< VARIABLE RESISTOR >

12

10 16
#1

C1 C2 C3 C4 C5

1-126-961-11 1-126-961-11 1-126-961-11 1-126-961-11

ELECT ELECT ELECT ELECT

2.2uF 2.2uF 2.2uF 2.2uF 2.2uF 2.2uF 470uF 470uF 470uF 470uF 470uF 0.01uF 0.001uF 0.001uF 0.001uF 0.001uF 0.001uF 0.001uF 0.001uF 0.001uF

20% 20% 20% 20% 20% 20% 20% 20% 20% 20% 20% 20% 10% 10% 10% 10% 10% 10% 10% 10%

50V 50V 50V 50V 50V 50V 10V 10V 10V 10V

RV1

1-225-279-11 RES, VAR, CARBON 50K/50K (VOLUME L) < SWITCH >

1-126-961-11 ELECT 1-126-961-11 ELECT 1-126-925-11 ELECT 1-126-925-11 ELECT 1-126-925-11 ELECT 1-126-925-11 ELECT 1-126-935-11 ELECT 1-162-306-11 CERAMIC 1-162-294-31 CERAMIC 1-162-294-31 CERAMIC 1-162-294-31 CERAMIC 1-162-294-31 1-162-294-31 1-162-294-31 1-162-294-31 1-162-294-31 CERAMIC CERAMIC CERAMIC CERAMIC CERAMIC

SP1

13 5

15

C6 C7 C8 C9 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19 C20

S1 1-692-040-11 SWITCH, PUSH (1 KEY) (POWER) ************************************************************ MISCELLANEOUS ************** 15 1-696-003-41 CORD (WITH PLUG) (INPUT R-CH) 1-696-003-51 CORD (WITH PLUG) (INPUT R-CH) (SRS-PC15)

#1

#2

4 3 2 1 6
SP2

16V 16V 50V 50V 50V 50V 50V 50V 50V 50V

15 16 16 SP1 SP2

14

(SRS-A15/A25) 1-559-891-31 CORD (WITH PLUG) (INPUT L/R) (SRS-A15/A25) 1-559-891-41 CORD (WITH PLUG) (INPUT L/R) (SRS-PC15) 1-505-851-11 SPEAKER (L-CH) 1-505-851-11 SPEAKER (R-CH)

************************************************************ ACCESSORIES & PACKING MATERIALS ********************************

< DIODE > D1 Ref. No. 1 1 1 2 3 4 *5 6 6 6 7 8 9 10 Part No. X-4949-631-1 X-4949-633-1 X-4949-635-1 4-998-759-01 2-141-216-01 4-998-760-01 A-4542-508-A X-4949-632-1 X-4949-634-1 X-4949-636-1 3-555-858-01 4-999-232-01 4-999-231-01 4-981-128-01 Description Remark Ref. No. 11 12 13 14 15 15 Part No. Description Remark IC1 IC2 8-719-812-41 LED TLR124 (POWER) < IC > 8-759-366-92 IC LA4525 8-759-366-92 IC LA4525 < JACK > (SRS-PC15) 1-696-003-51 CORD (WITH PLUG) (INPUT R-CH) (SRS-A15/A25) 1-559-891-31 CORD (WITH PLUG) (INPUT L/R) (SRS-A15/A25) 1-559-891-41 CORD (WITH PLUG) (INPUT L/R) (SRS-PC15) 4-902-509-01 CUSHION, F 1-505-851-11 SPEAKER (L-CH) 1-505-851-11 SPEAKER (R-CH) JK1 JK2 1-566-822-21 JACK (R OUT) 1-569-966-11 JACKE, DC (DC IN 9V) < RESISTOR > 16 16 17 SP1 SP2 R1 R2 R3 R4 R5 1-249-425-11 1-249-425-11 1-249-411-11 1-249-411-11 1-249-429-11 CARBON CARBON CARBON CARBON CARBON 4.7K 4.7K 330 330 10K 5% 5% 5% 5% 5% 1/4W 1/4W 1/4W 1/4W 1/4W ************** HARDWARE LIST ************** #1 #2 7-685-645-79 SCREW +BVTP 7-685-648-79 SCREW +BVTP 3X6 TYPE2 N-S 3X12 TYPE2 N-S ! ! ! ! 1-467-852-11 ADAPTOR, AC (AC-E90HG) (SRS-A25:AUS) 1-473-578-11 ADAPTOR, AC (AC-S906) (SRS-A25:Canadian,C&SA) 1-473-579-11 ADAPTOR, AC (AC-S906) (SRS-A25:AEP,SP) 1-473-582-11 ADAPTOR, AC (AC-S911) (SRS-A25:UK,HK) 3-862-083-11 MANUAL, INSTRUCTION (ENGLISH,FRENCH, GERMAN,SPANISH,DUTCH,SWEDISH, ITALIAN,PORTUGUESE) (SRS-A15/PC15) 3-862-084-11 MANUAL, INSTRUCTION (ENGLISH,FRENCH, GERMAN,SPANISH,DUTCH,SWEDISH, ITALIAN,PORTUGUESE) (SRS-A25)

CABINET (L) ASSY, FRONT (SRS-A15) CABINET (L) ASSY, FRONT (SRS-PC15) CABINET (L) ASSY, FRONT (SRS-A25) KNOB (VOLUME) SPACER (VOL) BUTTON (POWER) AMPLIFIER BOARD, COMPLETE CABINET (R) ASSY, FRONT (SRS-A15) CABINET (R) ASSY, FRONT (SRS-PC15) CABINET (R) ASSY, FRONT (SRS-A25) CUSHION (25X15X0.5) SPRING, BATTERY COIL SPRING, MINUS COIL CUSHION

4-998-800-01 LID, BATTERY CASE 4-941-496-01 4-998-797-01 4-998-798-01 1-696-003-41 TERMINAL, BATTERY CABINET (L), REAR CABINET (R), REAR CORD (WITH PLUG) (INPUT R-CH)

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Sony Corporation

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9-923-334-11

Personal A&V Products Company

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98B0281-1 Printed in Japan © 1998.2 Published by Quality Engineering Dept. (Shibaura)