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TROUBLESHOOTING GUIDE
C834
R857
D805, D803, ZD804, Q801
3
Q04,Q851,Q852,Q853,IC802,IC804 41
8 IC507
IC01,IC301,FR440,FR441, D406,FR436,Q804,Q805.
8.0V D407,D408.
IC507.
75V
R405, D811, FR848.
135V
D813,R811,R812,T403,Q402,L801. Q401, Q402, T401.
FR459, FR901.
61
20~25, 28~29
10~17 IC503. Q205, IC201.
IC503. 29~30, 32~37 IC504.
Check the waveform
IC504. at pin 54~61 of IC507.
Check/Replace IC507,
Check/Replace IC507.
Q502~Q510.
NO VGA
Check the waveform
at pin 52, 60 of IC501.
NO NORMAL
Check/Replace Check the waveform
VGA01. at pin 31, 32, 33 of IC507.
NO NORMAL
Check/Replace Check/Replace
VGA01. IC507.
NO COMPONENT
Check the voltage
at pin 44 of IC01.
0V 5V
Check/Replace Check the waveform
IC01. at pin 10~13 of IC203.
NO NORMAL
Check the waveform Check/Replace
at pin 6~8 of IC203. IC503.
NO NORMAL
Check/Replace Check/Replace
Q202, Q208, Q209. IC203.
31V
FR852, D814.
FR848,D811,FR829,ZD103.
IC102, R110 .
61
19
IC201,Q203,Q204,IC204.
IC03
1, 6 IC301.
FR440,FR441,D407,D408. 19, 20 IC507.
IC507, Q501, Q514. IC301, D301.
PIN CUSHION
21 IC507.
IC507. IC401
IC401 R424.
Q404, Q405. D402.
12 IC701.
2.4V
IC701, X701. 6
Q701. 35,36,37 IC507.
IC507.
Check the waveform
at pin 9 of P504B.
NORMAL
Check/Replace Q2001~Q2003,
IC507,Q511~Q513. IC2001,D2008~D2009.