TROUBLE SHOOTING
47
5. MPEG BOARD
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
NO
<Bad soldering of R24 can make white and black screen
NO
Check soldering or replace it
+1.8V regulator(U1) 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 L27) 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-K511S)060115.indd 47
2006-1-16 15:31:50
Summary of Contents for DG-K511S
Page 28: ...PCB CIRCUIT BOARD 27 2 DECODE BOARD Sm DAEWOO_DG K511S 060115 indd 27 2006 1 16 15 31 31 ...
Page 29: ...PCB CIRCUIT BOARD 28 Sm DAEWOO_DG K511S 060115 indd 28 2006 1 16 15 31 35 ...
Page 36: ...PCB CIRCUIT BOARD 35 5 YUV OUTPUT BOARD Sm DAEWOO_DG K511S 060115 indd 35 2006 1 16 15 31 42 ...