Daewoo DG-K301, Service Manual

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TROUBLE SHOOTING
40
5. MPEG BOARD
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
NO
<Bad soldering of R37,R42 can make white and black screen
NO
Check soldering or replace it
+1.2V regulator(Q14Pin2) Check
+3.3V regulator(Q13 Pin2) Check
that voltage is between 3.3v-3.5v
that voltage is between 1.2v-1.3v
Check all Connectors
CON7
Check +5v (Pin4,6)
Check Power Circuit
+3.3v regulator(FB2) for
SDRAM(IC104) Check +3.3V
Check soldering or replace it
RESET Signal Q100
of Collector
S5L5008A01 Crystal (X100)
Check whether X100 (27MHz)
Oscillates
Check soldering or replace it
Flash (IC U107) Check
CE#(Pin22)&OE#(Pin24)
&Adds line
Check soldering or replace it
Check soldering
or reprogramming Flash
or replace it
Check R20
1.3K resistor
Check C108,R133,R134,D100
YES
YES
YES
Check soldering of other parts