LC-19D1E/S-BK/WH
4 – 2
Power supply (troubleshooting): A power supply does not come to each main circuit or IC. (2)
The power supply of a VIDEO system/IC801 (DVP) does not
operate.
Checklist:
1) The check of the front page POW (1) is completed.
•
•
•
UR12V is output to SC1204 (MAIN-PCB).
(If UR12V is not output, confirm the POW(1) again and repair.)
2) Check that BU3.3V is supplied to IC2002 (SUB-MICON), and the AC-CTL signal H is output from 35pin within a MAIN board.
(If BU3.3V is not supplied, check IC2004 (BU3.3V-REG) and a periferal circuit.)
3) Refer to attached sheet Power-Block diagram.
Is B1.5V supplied to pin(D12) of IC801 (DVP) ?
NO
Check whether B1.5V is output from pin(6) of IC705.
YES
NO
Check whether POWER-CTL signal is input to pin(4) of IC705
(REG).
YES
Is B12V supplied to pin(5) of IC705 (REG) ?
YES
Exchange IC705 (REG).
Is B3.3V supplied to pin(R19)(D5) of IC801(DVP) ?
NO
Check whether B3.3V is output from pin(3) of IC703 (REG).
YES
NO
Check whether UR 12V-CTL signal is input to pin(7) of
IC703(REG).
YES
Is B12V supplied to pin(2) of IC703 (REG) ?
YES
Exchange IC703 (REG).
Is B3.3V supplied to pin(1)(19) of IC9201 (RSDS-TR) ?
NO
Check whether B3.3V is output from pin(3) of IC703 (REG).
YES
NO
Check the soldering of IC801 and IC703 or exchange it.
Check whether UR 12V-CTL signal is input to pin(7) of
IC703(REG).
YES
Is B12V supplied to pin(2) of IC703 (REG) ?
YES
Exchange IC703 (REG).
Содержание LC-19D1E/S-BK/WH
Страница 14: ...LC 19D1E S BK WH 3 3 6 Choose Create a new project workspace 7 Select CPU family M16C and Tool chain None ...
Страница 15: ...LC 19D1E S BK WH 3 4 8 Selects R8C E8 system 9 Press Complete ...
Страница 17: ...LC 19D1E S BK WH 3 6 12 Select User Flash Area 13 Select 500000 bps ...
Страница 18: ...LC 19D1E S BK WH 3 7 14 Input all zero 00000000000000 15 Next display ...
Страница 78: ...LC 19D1E S BK WH 5 8 2 4 IC501 VHiMM1492BJ 1Y 2 4 1 Block Diagram ...
Страница 98: ...LC 19D1E S BK WH 5 28 MEMO ...
Страница 118: ...LC 19D1E S BK WH 8 3 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 MAIN Unit 2 ...
Страница 119: ...LC 19D1E S BK WH 8 4 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 MAIN Unit 3 ...
Страница 120: ...LC 19D1E S BK WH 8 5 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 MAIN Unit 4 ...
Страница 121: ...LC 19D1E S BK WH 8 6 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 MAIN Unit 5 ...
Страница 122: ...LC 19D1E S BK WH 8 7 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 MAIN Unit 6 ...
Страница 123: ...LC 19D1E S BK WH 8 8 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 MAIN Unit 7 ...
Страница 124: ...LC 19D1E S BK WH 8 9 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 MAIN Unit 8 ...
Страница 125: ...LC 19D1E S BK WH 8 10 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 MAIN Unit 9 ...
Страница 127: ...LC 19D1E S BK WH 8 12 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 DIGITAL TUNER Unit 2 ...
Страница 128: ...LC 19D1E S BK WH 8 13 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 SUB Unit 1 ...
Страница 129: ...LC 19D1E S BK WH 8 14 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 SUB Unit 2 ...
Страница 130: ...LC 19D1E S BK WH 8 15 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 SUB Unit 3 ...
Страница 131: ...LC 19D1E S BK WH 8 16 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 SUB Unit 4 ...
Страница 132: ...LC 19D1E S BK WH 8 17 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 R C LED Unit ...
Страница 133: ...LC 19D1E S BK WH 8 18 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 KEY Unit ...
Страница 134: ...LC 19D1E S BK WH 8 19 MEMO ...