Sony wm gx 512 service manual

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- 2 - Section Title Page SECTION 1. GENERAL............................................... 3 SECTION 2. SERVICE NOTE..................................... 4 SECTION 3. DISASSEMBLY 3-1. Cassette Lid ASSY and Case ASSY ................................. 6 3-2. Bracket ASSY and Cassette Holder ASSY ....................... 6 3-3. Tuner Board ....................................................................... 7 3-4. Main Board ......................................................................... 7 SECTION 4. MECHANICAL ADJUSTMENT........... 8 SECTION 5. ELECTRICAL ADJUSTMENT............. 8 SECTION 6. DIAGRAMS 6-1. Printed Wiring Board - Tuner Section - ..................... 11 6-2. Schematic Diagram - Tuner Section - ........................ 13 6-3. Schematic Diagram - Main Section - ......................... 17 6-4. Printed Wiring Board - Main Section - ...................... 21 6-5. IC Pin Functions IC501 BA3641FV REC AMP ......................................... 25 IC701 MSM63120B System Control .............................. 25 IC702 SMC62L3A LCD Drive ....................................... 27 SECTION 7. EXPLODED VIEWS 7-1. Case Section ..................................................................... 28 7-2. Main Board Section ......................................................... 29 7-3. Mechanism Section (MF-WMGX614-112) ..................... 30 SECTION 8. ELECTRICAL PARTS LIST.............. 31 TABLE OF CONTENTS SAFETY-RELATED COMPONENT WARNING !! COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK ! ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. 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. Flexible Circuit Board Repairing - Keep the temperature of the soldering iron around 270 °C during repairing. - Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). - Be careful not to apply force on the conductor when solder- ing or unsoldering. Dry Battery

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- 3 - SECTION 1 GENERAL FUNCTION OF CONTROL 0 This section is extracted from instruction manual. !£ !-„¢ !¡ 9 8 7 6 5 3 4 1 Display Window 2 PRESET +-AMS-FF button 3 PRESET -“-AMS-REW button 4 MENU button 5 cREC switch 6 SET button 7 p RADIO OFF button 8 ISS switch 9 ENTER button 0 2REMOTE (GX512), 2(GX510) jack !¡ MIC (PLUG IN POWER) jack !-„¢ CHOLD button !£ VOLUME knob !¢ RADIO ON-BAND button !-ˆž TUNIG + button !§ TUNIG -“ button !¶ Å“ button !- BATT indicater 1 2!- !¶!§!-ˆž !¢ - ILLUST LATION:WM-GX512 MODEL