3-1
ELECTRICAL TROUBLESHOOTING GUIDE
1. System operation flow
Power On
No
Yes
Yes
Yes
No
No
No
Show LOGO
Tray Closed?
Tray Close to Closed position
SLED Moves to Inner Position
Recieve
OPEN/ CLOSE
Key?
Receive
CLOSE Key?
1. Stop Playback & Open Tray
2. Display tray open message & LOGO
1. Execute Pressed Key & IR Key
2. Systemoperati on Routi ne Loop
1. Judge whether have disc and disc type
2. Jump to related disc reading procedure
SLED at Inner
Side?
1. 8082 initializes SERVO, DSP & RISC registers
2. Write RISC code to SDRAM
3. Reset RISC
SECTION 3. DVD & AMP PART
Summary of Contents for LHS-55SBC
Page 7: ...2 1 SECTION 2 AUDIO PART AUDIO TROUBLESHOOTING GUIDE 1 POWER SUPPLY CIRCUIT ...
Page 8: ...2 2 2 FRONT CIRCUIT 1 2 PIN3 PIN4 PIN9 27 5 FL 32 4 VKK 23 7 FL 5 0 CN902 CN902 ...
Page 9: ...2 3 3 FRONT CIRCUIT 2 2 ...
Page 13: ...2 10 2 11 2 POWER SCHEMATIC DIAGRAM_2 A B C D E F G H I J K L M N O P Q R S T ...
Page 14: ...2 12 2 13 3 MICOM SCHEMATIC DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 15: ...2 14 2 15 4 FRONT SCHEMATIC DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 16: ...2 16 2 17 5 DSP AMP SCHEMATIC DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 17: ...2 18 2 19 6 I O SCHEMATIC DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 18: ...2 20 2 21 7 MAIN MIC SCHEMATIC DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 19: ...2 22 2 23 PRINTED CIRCUIT BOARD DIAGRAMS 1 MAIN DVD P C BOARD DIAGRAM TOP VIEW ...
Page 20: ...2 24 2 25 6870R7505AC 2 MAIN DVD P C BOARD DIAGRAM BOTTOM VIEW ...
Page 21: ...2 26 2 27 3 FRONT MIC P C BOARD 6870R7507AA ...
Page 23: ...2 30 2 31 6 AMP P C BOARD TOP VIEW BOTTOM VIEW ...
Page 26: ...3 3 A 115 ...
Page 27: ...3 4 B 1 2 ...
Page 28: ...3 5 C ES6698 ES6698 ES6698 ...
Page 29: ...3 6 D ...
Page 45: ......
Page 47: ...A B C D E F G H I J K L M N O P Q R S T 3 24 3 25 2 RF SERVO SCHEMATIC DIAGRAM ...
Page 48: ...3 FRONT MIC SCHEMATIC DIAGRAM A B C D E F G H I J K L M N O P Q R S T 3 26 3 27 ...
Page 49: ...3 28 3 29 4 USB CONTROLLER SCHEMATIC DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 50: ...5 AMP SCHEMATIC DIAGRAM 5TOOL A B C D E F G H I J K L M N O P Q R S T 3 30 3 31 ...
Page 51: ...6 AMP SCHEMATIC DIAGRAM 7TOOL A B C D E F G H I J K L M N O P Q R S T 3 32 3 33 ...
Page 55: ......
Page 56: ...5 1 SECTION 5 SPEAKER SECTION CENTER SPEAKER MODEL LHS 55SBC A70 750 751 752 753 754 755 ...
Page 58: ...5 3 SUB WOOFER SPEAKER MODEL LHS 55SBW 950 956 951 955 954 953 952 A90 ...
Page 59: ......
