TROUBLE SHOOTING
4
5. MPEG BOARD
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
NO
<Bad soldering of R20 can make white and black screen
NO
Check soldering or replace it
+1.8V regulator(Q6 Pin3) Check
that voltage is between 1.7v-1.9v
Check all Connectors
CN1
Check +3.3v (Pin7)
Check +3.3v (Pin4.5.8)
Check Power Circuit
+3.3v regulator(FB L26) for
SDRAM(U6) Check +3.3V
Check soldering or replace it
RESET Signal
D3
MT1389 Crystal (Y1)
Check whether Y1 (27MHz)
Oscillates
Check soldering or replace it
Flash (IC U7) Check
CE#(Pin26)&RST(Pin12)
&Adds line
Check soldering or replace it
Check soldering
or reprogramming Flash
or replace it
Check R20
1.3K resistor
Check C10 ,R1
YES
YES
YES
Check soldering of other parts
Sm(DAEWOO_DG-K51X)051229.indd 41
2005-12-30 11:47:49
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 ...