TROUBLE SHOOTING
38
2. CONTROL BOARD CIRCUIT
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
YES
N O
NO LED display
Is 5V obtained at
Pin#7,21 of U1
Check pin#1 of J1
Oscillation at
pin#1 of U1
Check R2, exchange U1
Is there KEY/SEG
signal?
Cheack PCB
KEY output at
PORT of U1
Check U1 pin #6~7
Check SEG/GRID output
at PORT of U1
Check U1 pin#8~27
Exchange U1
Sm(DAEWOO_DG-K51X)051229.indd 38
2005-12-30 11:47:48
Содержание DG-K512
Страница 14: ...13 CIRCUIT DIAGRAM 1 POWER SUPPLY SCHEMATIC DIAGRAM Sm DAEWOO_DG K51X 051229 indd 13 2005 12 30 11 47 06 ...
Страница 16: ...CIRCUIT DIAGRAM 15 2 RF MPEG SCHEMATIC DIAGRAM Sm DAEWOO_DG K51X 051229 indd 15 2005 12 30 11 47 11 ...
Страница 17: ...CIRCUIT DIAGRAM 16 3 SDRAM FLASH SCHEMATIC DIAGRAM Sm DAEWOO_DG K51X 051229 indd 16 2005 12 30 11 47 14 ...
Страница 18: ...CIRCUIT DIAGRAM 17 4 VIDEO OUTPUT PORT SCHEMATIC DIAGRAM Sm DAEWOO_DG K51X 051229 indd 17 2005 12 30 11 47 16 ...
Страница 19: ...CIRCUIT DIAGRAM 18 5 AUDIO OUTPUT PORT SCHEMATIC DIAGRAM Sm DAEWOO_DG K51X 051229 indd 18 2005 12 30 11 47 21 ...
Страница 20: ...CIRCUIT DIAGRAM 19 3 CONTROL BOARD SCHEMATIC DIAGRAM Sm DAEWOO_DG K51X 051229 indd 19 2005 12 30 11 47 24 ...
Страница 22: ...CIRCUIT DIAGRAM 21 5 YUV BOARD SCHEMATIC DIAGRAM Sm DAEWOO_DG K51X 051229 indd 21 2005 12 30 11 47 26 ...
Страница 23: ...22 PCB CIRCUIT BOARD 1 POWER SUPPLY BOARD Sm DAEWOO_DG K51X 051229 indd 22 2005 12 30 11 47 27 ...
Страница 24: ...PCB CIRCUIT BOARD 23 2 DECODE BOARD Sm DAEWOO_DG K51X 051229 indd 23 2005 12 30 11 47 36 ...
Страница 25: ...PCB CIRCUIT BOARD 24 Sm DAEWOO_DG K51X 051229 indd 24 2005 12 30 11 47 40 ...
Страница 26: ...PCB CIRCUIT BOARD 25 3 CONTROL BOARD DG K512 Sm DAEWOO_DG K51X 051229 indd 25 2005 12 30 11 47 41 ...
Страница 27: ...PCB CIRCUIT BOARD 26 CONTROL BOARD DG K514 Sm DAEWOO_DG K51X 051229 indd 26 2005 12 30 11 47 41 ...
Страница 28: ...PCB CIRCUIT BOARD 27 CONTROL BOARD DG K515 Sm DAEWOO_DG K51X 051229 indd 27 2005 12 30 11 47 42 ...
Страница 29: ...PCB CIRCUIT BOARD 28 CONTROL BOARD DG K518 Sm DAEWOO_DG K51X 051229 indd 28 2005 12 30 11 47 42 ...
Страница 31: ...PCB CIRCUIT BOARD 30 MICROPHONE BOARD DG K515 Sm DAEWOO_DG K51X 051229 indd 30 2005 12 30 11 47 43 ...
Страница 32: ...PCB CIRCUIT BOARD 31 5 YUV OUTPUT BOARD Sm DAEWOO_DG K51X 051229 indd 31 2005 12 30 11 47 44 ...
Страница 35: ...WAVEFORMS 34 U6 Pin38 SDRAM CLOCK CN4 Pin4 VSC S CLK Sm DAEWOO_DG K51X 051229 indd 34 2005 12 30 11 47 46 ...
Страница 36: ...WAVEFORMS 35 CN4 Pin6 VSD SDATA IN CN4 Pin5 VST S CS Sm DAEWOO_DG K51X 051229 indd 35 2005 12 30 11 47 47 ...
Страница 37: ...WAVEFORMS 36 CN4 Pin 2 IR Y1 Pin1 27MHz X TAL Sm DAEWOO_DG K51X 051229 indd 36 2005 12 30 11 47 48 ...