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MHC-V21/V21D 3 1. SERVICING NOTES ............................................. 4 2. DISASSEMBLY 2-1. Disassembly Flow ........................................................... 10 2-2. Side Panel L, R ............................................................... 11 2-3. Top Panel Section ........................................................... 12 2-4. Loading Panel Assy ........................................................ 13 2-5. CDM Section .................................................................. 14 2-6. CDM90-DVBU204//M ................................................... 15 2-7. Service, Optical Device (7G), Flexible Flat Cable ......... 16 2-8. Back Panel ...................................................................... 17 2-9. MOTHERBOARD Board ............................................... 18 2-10. SMPS Board, Chassis Section ........................................ 19 2-11. Front Panel Section ......................................................... 20 2-12. Loudspeaker (20CM) (Woofer) (SP3) ............................ 21 3. TEST MODE ............................................................ 22 4. ELECTRICAL CHECK ......................................... 23 5. TROUBLESHOOTING .......................................... 24 6. DIAGRAMS 6-1. Block Diagram - RS SERVO, USB, HDMI Section - .............................. 31 6-2. Block Diagram - MAIN Section - ................................... 32 6-3. Block Diagram - AMP Section - ..................................... 33 6-4. Block Diagram - PANEL, POWER SUPPLY Section - ........................... 34 6-5. Block Diagram - SMPS Section - ................................... 35 6-6. Printed Wiring Board - MOTHERBOARD Board (Component Side) - ......................................................... 37 6-7. Printed Wiring Board - MOTHERBOARD Board (Conductor Side) - .......................................................... 38 6-8. Printed Wiring Board - PANEL Board - ......................... 39 6-9. Schematic Diagram - PANEL Board - ............................ 40 6-10. Printed Wiring Board - SMPS Board - ........................... 41 6-11. Printed Wiring Board - MIC USB Board - ..................... 42 6-12. Schematic Diagram - MIC USB Board - ........................ 43 6-13. Printed Wiring Board - IR Board - .................................. 44 6-14. Schematic Diagram - IR Board - .................................... 44 6-15. Printed Wiring Board - SPK LED Board - ..................... 44 6-16. Schematic Diagram - SPK LED Board - ........................ 44 6-17. Printed Wiring Board - NFC Board - .............................. 45 TABLE OF CONTENTS 7. EXPLODED VIEWS 7-1. Side Panel Section .......................................................... 46 7-2. Panel Loading Section .................................................... 47 7-3. MOTHERBOARD Board Section .................................. 48 7-4. Chassis Section ............................................................... 49 7-5. Front Panel Section ......................................................... 50 7-6. Speaker Cabinet Section ................................................. 51 7-7. Top Panel Section ........................................................... 52 7-8. CDM Section .................................................................. 53 7-9. DVD Mechanism Section(CDM90-DVBU204//M) ................................................ 54 8. ELECTRICAL PARTS LIST .............................. 55 Accessories are listed in the last part of the electrical parts list. Ver. 1.1 SYS SET 2018/08/28 21:56:45 (GMT+09:00)