Table of Contents
Advertisement
SERVICE MANUAL
Ver. 1.1 2005.07
Sony Corporation
9-926-921-12
Personal Audio Group
2005G05-1
Published by Sony Engineering Corporation
© 2005.07
WM-SR1
Model Name Using Similar Mechanism
Tape Transport Mechanism Type
SPECIFICATIONS
RADIO CASSETTE-CORDER
US Model
Canadian Model
E Model
Chinese Model
WM-FX171
MF-WMSR1-114
Advertisement
Table of Contents
Related Manuals for Sony WM-SR1
Summary of Contents for Sony WM-SR1
- Page 1 SERVICE MANUAL US Model Canadian Model Ver. 1.1 2005.07 E Model Chinese Model Model Name Using Similar Mechanism WM-FX171 Tape Transport Mechanism Type MF-WMSR1-114 SPECIFICATIONS RADIO CASSETTE-CORDER Sony Corporation 9-926-921-12 Personal Audio Group 2005G05-1 Published by Sony Engineering Corporation © 2005.07...
-
Page 2: Table Of Contents
SECTION 1 SERVICING NOTES TABLE OF CONTENTS In this set, the S301 (TAPE POWER switch) detects REC/PLAY- BACK on. It is mounted on the MAIN board, and therefore the REC/PLAY- SERVICING NOTES ..........2 BACK on cannot be detected with the MAIN board removed. When making an operation check and voltage check of mechani- GENERAL .............. - Page 3 MODEL IDENTIFICATION FM MODE FM SENS – Rear View – MADE IN MALAYSIA or no indication Model Indication of S2 Indication of country origin Indication of service manual FM SENS MADE IN MALAYSIA Canadian FM SENS MADE IN MALAYSIA CND or Canadian FM MODE MADE IN MALAYSIA Saudi Arabia...
-
Page 4: General
SECTION 2 This section is extracted from instruction manual. GENERAL LOCATION OF PARTS AND CONTROLS *1 FM MODE: E, Saudi Arabia, 9E, Chinese Models FM SENS: US, Canadian, 5E Models – 4 –... -
Page 5: Disassembly
SECTION 3 DISASSEMBLY • This set can be disassembled in the order shown below. Mechanism Deck Belt, Motor (M901), Cabinet Main Board (MF-WMSR1-114) “Head, Magnetic” (HRP901) (Rear) Assy “Holder Sub Assy, Cassette” Dial Pointer Setting Note: Follow the disassembly procedure in the numerical order given. CABINET (REAR) ASSY 3 Remove the cabinet (rear) assy (Release all claws from B to L in alphabetical order.) - Page 6 MAIN BOARD 3 connector (CN302) 4 screw 6 main board (M1.4) 1 Remove four solders of motor (M901). 2 flexible board (CN301) 5 two claws DIAL POINTER SETTING Note: Follow the assembly procedure in the numerical order given. guide rib pointer fig.
- Page 7 MECHANISM DECK (MF-WMSR1-114) 2 Remove the mechanism deck (MF-WMSR1-114) to direction of the arrow A . 1 two claws BELT, MOTOR (M901), “HEAD, MAGNETIC” (HRP901) 1 belt 3 motor 5 “head, magnetic” (M901) (HRP901) 2 two special head screws (M1.4) 4 two special head screws (M1.4) –...
- Page 8 “HOLDER SUB ASSY, CASSETTE” 1 Insert a precision screw driver (1.4 mm flat-blade) vertically into portion A to release the hingeplate. 2 Portion B to release the hinge plate. 4 spring (torsion) 3 “holder sub assy, cassette” NOTE FOR INSTALLATION Note: Follow the assembly procedure in the numerical order given.
-
Page 9: Mechanical Adjustments
SECTION 4 SECTION 5 MECHANICAL ADJUSTMENT ELECTRICAL ADJUSTMENTS PRECAUTION PRECAUTION FM FREQUENCY COVERAGE ADJUSTMENT TUNER SECTION 0 dB=1 µV 1. Clean the following parts with a denatured-alcahol-moistened 1. Specified voltage : 2.5 V (DC) Adjust for a maximum reading on level meter swab : 2. -
Page 10: Diagrams
WM-SR1 SECTION 6 DIAGRAMS 6-1. BLOCK DIAGRAM – TUNER Section – • SIGNAL PATH : FM : AM 10.7MHz FM/AM RF AMP, FM/AM MIX AMP, FM/AM OSC, FM/AM IF AMP, DET, MPX EXCEPT US, Canadian, 5E models FM RF FM/AM TUNER L/R B.P.F. -
Page 11: Block Diagram - Main Section
WM-SR1 6-2. BLOCK DIAGRAM – MAIN Section – S303 (4/4) (REC/PB) TUNER L/R VCC B+ REC B+ TUNER L TUNER R (Page 12) MIC AMP, ALC REC/PB AMP IC341 (1/2) IC341 (2/2) REC MUTE • SIGNAL PATH SWITCH Q359 : TUNER (FM/AM) -
Page 12: Printed Wiring Board
WM-SR1 WM-SR1 6-3. PRINTED WIRING BOARD • Semiconductor • Semiconductor Location Location (Component Side) (Conductor Side) Ref. No. Location Ref. No. Location D101 D308 D102 D502 D301 D503 D302 D305 D306 IC301 D309 IC341 D401 IC401 D402 IC601 D403 D404... -
Page 13: Schematic Diagram
6-4. SCHEMATIC DIAGRAM • See page 25 for IC Block Diagrams. WM-SR1 • Waveforms 1 T351 (REC mode) 50 V/DIV, 10 µs/DIV 80 Vp-p 20 µ s 2 IC601 !¡ OSC (REC mode) 10 mV/DIV, 500 µs/DIV 42 mVp-p 1.5 ms Note on Schematic Diagram: •... -
Page 14: Exploded Views
SECTION 7 Ver. 1.1 EXPLODED VIEWS • IC Block Diagrams NOTE: (2) MECHANISM DECK SECTION • -XX and -X mean standardized parts, so they • Items marked “*” are not stocked since they – MAIN Board – • Abbreviation (MF-WMSR1-114) may have some difference from the original are seldom required for routine service. -
Page 15: Electrical Parts List
SECTION 8 MAIN ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the • Items marked “*” are not stocked since they • Abbreviation 5E: Refer to “Model Identification on are seldom required for routine service. parts list may be different from the parts speci- page 3. - Page 16 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C205 1-164-346-11 CERAMIC CHIP C359 1-165-128-11 CERAMIC CHIP 0.22uF C206 1-162-964-11 CERAMIC CHIP 0.001uF C361 1-164-506-11 CERAMIC CHIP 4.7uF C207 1-164-346-11 CERAMIC CHIP C208 1-164-161-11 CERAMIC CHIP 0.0022uF 10% 100V C362...
- Page 17 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark D407 8-719-420-51 DIODE MA729 Q308 8-729-028-97 TRANSISTOR DTC114TUA-T106 D502 8-719-404-50 DIODE MA111-TX Q310 8-729-028-76 TRANSISTOR DTA114YUA-T106 D503 8-719-404-50 DIODE MA111-TX Q311 8-729-420-16 TRANSISTOR XN1214 Q333 8-729-141-48 TRANSISTOR 2SB624-BV345 <...
- Page 18 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R204 1-216-837-11 METAL CHIP 1/16W R205 1-216-845-11 METAL CHIP 100K 1/16W R611 1-216-809-11 METAL CHIP 1/16W R207 1-216-845-11 METAL CHIP 100K 1/16W R612 1-216-833-11 METAL CHIP 1/16W R613 1-216-825-11 METAL CHIP 2.2K...
- Page 19 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark ACCESSORIES & PACKING MATERIALS ******************************** 1-505-521-11 HEADPHONE (MDR-023) (US, Canadian) 1-542-307-11 MICROPHONE 2-389-320-01 CUSHION, LOCK PLATE 3-020-998-01 CLIP, BELT 3-864-898-12 MANUAL, INSTRUCTION (ENGLISH, CHINESE, KOREAN) (US, E) 3-864-898-22 MANUAL, INSTRUCTION (ENGLISH, FRENCH, SPANISH, PORTUGUESE) (Canadian, 5E) 3-864-898-32 MANUAL, INSTRUCTION (ENGLISH, CHINESE, RUSSIAN, ARABIC) (Saudi Arabia, Chinese)
-
Page 20: Revision History
WM-SR1 REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page. Ver. Date Description of Revision 1999.01...