WM-EX550/EX552

AEP Model E Model

SERVICE MANUAL

CORRECTION-1
Correct your service manual as shown below.

Tourist Model

WM-EX552
! : indicates corrected portion.

Page INCORRECT

CORRECT
Ref. No. Part No. Description Remark
Ref. No. 2 Part No. Description

Remark

3-704-197-01 SCREW (IB LOCK)
3-704-197-01 SCREW 1.4X1.6 (S) (for SILVER, BLUE) (EX550)
3-704-197-01 SCREW 1.4X1.6 (S) (EX552)
3-704-197-03 SCREW 1.4X1.6 (B) (for BLACK) (EX550)
3-015-995-01 SPACER (CASSETTE)
3-389-523-15 SCREW 1.4X2 (S) (for SILVER, BLUE) (EX550)
3-389-523-15 SCREW 1.4X2 (S) (EX552)
3-389-523-16 SCREW 1.4X2 (B) (for BLACK) (EX550)

(SPM-97023)

Sony Corporation

9-923-153-91

Personal A&V Products Company
97J0569-1 Printed in Japan 1997. 10 Published by Quality Engineering Dept. (Shibaura)

SUPPLEMENT-1

File this supplement with the service manual.
Subject: MAIN Board Modification

(ECN-WM700963)

New/Former Discrimination [MAIN BOARD] (SIDE B)
Former Type: 1-664-732-11 New Type: 1-664-732-14 or 1-664-732-21
IC Block Diagram IC601 LB1674V-TLM (SUFFIX-21)

21 GND

20 VCC

COM DR VREF

8 POWER BIAS

PRE DRIVER

19 FC 18 PV 17 PU

VSP 10

SPEED DETECT

SOFT SW

15 TCTC1
CHANGE CURRENT, START LOGIC IN+ 11 + 13 RI

OUT 12

START DETECT

CURRENT DETECT

2. ELECTRICAL PARTS LIST
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: , for example: uA. : A. uPA. : PA. uPB. : PB. uPC. : PC. uPD. : PD. CAPACITORS uF: F COILS uH: H When indicating parts by reference number, please include the board.
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

Ref. No.

Part No.

Description

Ref. No. C303 C304 C305 C306 C307 C308 C309 C310 C311 C312 C313 C314 C315 C316 C317 C318 C319 C320 C321 C322 C323 C324 C325 C326 C327 C501 C502 C601
Description 10% 20% 20% 20% 10% 20%
Remark 10V 10V 2.5V 25V 25V 6.3V 10V 10V 16V 4V 4V 16V 10V 10V 10V 10V 10V 50V 50V 50V 50V 50V 50V 50V 50V 4V 4V 10V (SUFFIX-21)
A-3061-413-A MAIN BOARD, COMPLETE ******************** < CAPACITOR > C101 C102 C103 C104 C105 C106 C107 C108 C109 C110 C111 C112 C113 C114 C115 C116 C117 C201 C202 C203 C204 C205 C206 C207 C208 C209 C210 C211 C212 C213 C214 C215 C216 C217 C220 C301 C302 1-164-473-11 1-164-473-11 1-128-024-11 1-164-227-11 1-164-677-11 1-115-156-11 1-162-965-11 1-128-014-11 1-164-174-11 1-162-970-11 1-107-823-11 1-115-156-11 1-115-156-11 1-162-964-11 1-162-970-11 1-109-982-11 1-115-156-11 1-164-473-11 1-164-473-11 1-135-151-21 1-164-227-11 1-164-677-11 1-115-156-11 1-162-965-11 1-128-014-11 1-164-174-11 1-162-970-11 1-107-823-11 1-115-156-11 1-115-156-11 1-162-964-11 1-162-970-11 1-115-156-11 1-115-156-11 1-162-953-11 CERAMIC CHIP CERAMIC CHIP ELECT CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP ELECT CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP TANTALUM CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP ELECT CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP 820PF 820PF 4.7uF 0.022uF 0.033uF 1uF 0.0015uF 10uF 0.0082uF 0.01uF 0.47uF 1uF 1uF 0.001uF 0.01uF 1uF 1uF 820PF 820PF 4.7uF 0.022uF 0.033uF 1uF 0.0015uF 10uF 10% 10% 20% 10% 10% 50V 50V 10V 25V 16V 10V 50V 4V 25V 25V 16V 10V 10V 50V 25V 10V 10V 50V 50V 4V 25V 16V 50V 4V 25V 25V 16V 10V 10V 50V 25V 10V 10V 50V 2.5V 10V
1-109-982-11 CERAMIC CHIP 1uF 1-128-024-11 ELECT CHIP 4.7uF 1-135-316-11 TANTALUM CHIP 22uF 1-110-423-11 1-164-227-11 1-135-180-21 1-115-156-11 1-115-156-11 1-165-128-11 1-109-935-11 1-135-201-11 1-107-823-11 1-115-156-11 1-115-156-11 1-115-467-11 1-135-149-21 1-107-688-11 1-162-964-11 1-162-964-11 1-162-964-11 1-162-964-11 1-162-964-11 1-162-953-11 1-162-964-11 1-162-964-11 1-135-201-11 1-135-201-11 1-115-467-11 ELECT CHIP CERAMIC CHIP TANTALUM CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP TANTALUM CHIP TANTALUM CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP TANTALUM CHIP TANTALUM CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP TANTALUM CHIP TANTALUM CHIP CERAMIC CHIP 2.2uF 0.022uF 3.3uF 1uF 1uF 0.22uF 4.7uF 10uF 0.47uF 1uF 1uF 0.22uF 2.2uF 1.5uF 0.001uF 0.001uF 0.001uF 0.001uF 0.001uF 100PF 0.001uF 0.001uF 10uF 10uF 0.22uF

8-719-423-35 8-719-423-35 8-719-423-35 8-719-049-09 8-719-404-49 8-719-049-09 8-719-051-01 8-719-051-01 8-719-051-01 8-719-051-01
DIODE DIODE DIODE DIODE DIODE
MA8120-H MA8120-H MA8120-H 1SS367-T3SONY MA111
DIODE 1SS367-T3SONY LED CL-170HR-CD-T (BATT) LED CL-170HR-CD-T (SOUND GRV) LED CL-170HR-CD-T (SOUND MB) LED CL-170HR-CD-T (BL SKIP)
8-729-421-26 TRANSISTOR UN5216 8-729-230-72 TRANSISTOR 2SA1362YG 8-729-422-51 TRANSISTOR UN5110-QRS < RESISTOR >
8-719-051-01 LED CL-170HR-CD-T (AVLS) 8-719-051-01 LED CL-170HR-CD-T (a NR) 8-719-423-35 DIODE MA8120-H < FERRITE BEAD >
R101 R102 R103 R104 R105 R108 R109 R110 R111 R112 R113 R114 R115 R201 R202 R203 R204 R205 R208 R209 R210 R211 R212 R213 R214 R215 R301
1-216-812-11 1-216-847-11 1-216-831-11 1-216-824-11 1-216-825-11 1-218-270-11 1-216-834-11 1-216-852-11 1-216-822-11 1-216-824-11 1-216-809-11 1-216-840-11 1-216-793-11 1-216-812-11 1-216-847-11 1-216-831-11 1-216-824-11 1-216-825-11 1-218-270-11 1-216-834-11 1-216-852-11 1-216-822-11 1-216-824-11 1-216-809-11 1-216-840-11
METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP RES, CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP RES, CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP RES, CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP

180 150K 6.8K 1.8K 2.2K

5% 5% 5% 5% 5%
1/16W 1/16W 1/16W 1/16W 1/16W

FB101 FB201 FB301

1-414-235-11 INDUCTOR, FERRITE BEAD 1-414-235-11 INDUCTOR, FERRITE BEAD 1-414-235-11 INDUCTOR, FERRITE BEAD < IC >
1.1K (1608) 12K 5% 390K 5% 1.2K 5% 1.8K 5% 100 39K 4.7 (1608) 180 150K 5% 5% 5% 5%
1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W
IC301 IC601 IC601 IC701 IC702 IC703 IC704
8-759-359-76 8-759-275-47 8-759-356-46 8-759-479-49 8-759-280-85

IC IC IC IC IC

TA2072AF LB1674V-TLM (SUFFIX-21) MM1279XVBE (SUFFIX-14) MSM6576-83GS-K PST9010NL
8-759-430-08 IC PST9008NL 8-759-469-63 IC S-81215SGUP-DQK-T1 < JACK >
6.8K 5% 1.8K 5% 2.2K 5% 1.1K (1608) 12K 5% 390K 1.2K 1.8K 100 39K 5% 5% 5% 5% 5%

J701 J801

1-778-930-21 JACK 7P (2 REMOTE) 1-779-080-11 JACK, DC (POLARITY UNIFIED TYPE) (DC IN 1.5V) < CHIP CONDUCTOR >
1-216-296-00 CONDUCTOR, CHIP (3216)
1-216-793-11 RES, CHIP 1-218-891-11 RES, CHIP

4.7 (1608) 68K (1608)

WM-EX550/EX552 MAIN
Ref. No. R302 R303 R304 R305 R306 R307 R308 R309 R501 R502 R601 R602 R603 Part No. Description 33K 5% 2.2K 5% 43K (1608) 1K 4.7 (1608) 150K 2.7K 47K 220K 10K 2.2K 6.8K 4.7K 5% 5% 5% 5% 5% 5% 5% Remark 1/16W 1/16W RV301 RV601 RV601 Ref. No. Part No. Description < VARIABLE RESISTOR > 1-225-342-11 RES, VAR, CARBON 10K/10K (VOLUME ) 1-223-576-11 RES, ADJ, METAL GLAZE 2.2K (SUFFIX-14) 1-223-921-11 RES, ADJ, METAL GLAZE 4.7K (SUFFIX-21) < SWITCH > S701 S702 S703 S704 S705 S706 S707 S708 1-762-970-21 1-572-581-11 1-572-922-11 1-692-453-11 1-692-453-11 SWITCH, PUSH (1 KEY)(CASSETTE HOLDER) SWITCH, SLIDE (DIRECTION) SWITCH, SLIDE (CHOLD) SWITCH, KEY BOARD (p) SWITCH, KEY BOARD (9( REPEAT) Remark 1-216-839-11 METAL CHIP 1-216-825-11 METAL CHIP 1-218-295-11 RES, CHIP 1-216-821-11 1-216-793-11 1-216-847-11 1-216-826-11 1-216-841-11 METAL CHIP RES, CHIP METAL CHIP METAL CHIP METAL CHIP

1/16W 1/16W 1/16W 1/16W

1-216-849-11 METAL CHIP 1-216-833-11 METAL CHIP 1-216-825-11 METAL CHIP 1-216-831-11 METAL CHIP 1-216-829-11 METAL CHIP
1/16W 1/16W 1/16W (SUFFIX-21) 5% 1/16W (SUFFIX-21) 5% 1/16W (SUFFIX-21) 5% 5% 5% 5% 5% 1/16W (SUFFIX-21) 1/16W (SUFFIX-14) 1/16W (SUFFIX-14) 1/16W (SUFFIX-21) 1/16W (SUFFIX-14) 1/16W (SUFFIX-14) 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W
1-692-453-11 SWITCH, KEY BOARD (FF) 1-692-453-11 SWITCH, KEY BOARD (REW) 1-692-453-11 SWITCH, KEY BOARD (FUNCTION) < THERMISTOR (POSITIVE) >

R604 R604 R605 R605 R606

1-216-809-11 METAL CHIP 1-216-817-11 METAL CHIP 1-216-830-11 METAL CHIP 1-216-837-11 METAL CHIP 1-216-809-11 METAL CHIP

5.6K 22K 100

THP601 1-810-794-11 THERMISTOR, POSITIVE < VIBRATOR > X701 1-760-872-11 VIBRATOR, CRYSTAL (32.768kHz) **************************************************************
R607 R701 R702 R703 R704 R705 R706 R707 R708 R709 R710 R711 R712 R713 R714 R715 R716 R717 R718 R719 R720 R721 R722 R723
1-216-837-11 METAL CHIP 1-216-817-11 1-216-851-11 1-216-849-11 1-216-827-11 1-216-849-11 1-216-849-11 1-218-870-11 1-216-851-11 1-216-845-11 1-218-836-11 1-218-845-11 1-218-847-11 1-218-849-11 1-218-866-11 1-216-849-11 1-216-849-11 1-216-827-11 1-216-821-11 1-216-821-11 1-216-162-00 1-216-162-00 1-216-817-11 1-216-817-11 METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP RES, CHIP METAL CHIP METAL CHIP RES, CHIP RES, CHIP RES, CHIP RES, CHIP RES, CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP RES, CHIP RES, CHIP METAL CHIP METAL CHIP

22K 470 330K 220K 3.3K

220K 5% 220K 5% 9.1K (1608) 330K 5% 100K 5% 360 (1608) 820 (1608) 1.0K (1608) 1.2K (1608) 6.2K (1608) 220K 220K 3.3K 1K 1K 5% 5% 5% 5% 5%
33 (3216) 33 (3216) 470 5% 470 5%

1/16W 1/16W

< COMPOSITION CIRCUIT BLOCK > RB301 RB601 RB602 RB701 1-233-872-21 RES, NETWORK (CHIP TYPE) (3216) 1-233-873-21 RES, NETWORK (CHIP TYPE) (3216) (SUFFIX-14) 1-233-576-11 RES, CHIP NETWORK 100 1-233-418-11 RES, CHIP NETWORK 3.3K (3216)

9-923-153-81

97K0568-1 Printed in Japan 1997. 11 Published by Quality Engineering Dept. (Shibaura)

WM-EX552

US Model

SERVICE MANUAL

CORRECTION-1
Correct your service manual as shown below.
! : indicates corrected portion.

Page INCORRECT

CORRECT
Ref. No. 2 Part No. Description Remark
Ref. No. 2 Part No. Description

Remark

3-704-197-01 SCREW (IB LOCK)
3-704-197-01 SCREW 1.4X1.6 (S)
3-389-523-15 SCREW 1.4X2 (S)

(SPM-97023)

Sony Corporation

9-923-153-92

Personal A&V Products Company
97J0518-1D Printed in Japan 1997. 10 Published by Quality Engineering Dept. (Shibaura)