LG PF-52A70 Service Manual page 25

INCORRECT
CONVERGENCE
Does the static convergence
correct?
Incorrect Dynamic Incorrect Static
Readjust static convergence
Check the input voltage at
No
P82PD. by remote controller
Abnormal Controlled
Normal Not controlled
Check pulse pin 125 Check voltage on the Are there pulse signal
O.K
of IC2051 (4MHz) SMPS PCB at pin 121 of IC2051
Abnormal
Y Abnormal
Normal
Check/Replace Check V ,H at pin Are there V , H pulse Check/Repla
BLK BLK BLK BLK
IC2051 1, 3 of P43PD at pin 1, 3 of P43PD ce Q2201
Y No Abnormal Normal
Check Check V , H
Check/Replace
BLK BLK
Check/Replace
H ,V on signal on the
IC2002
BLK BLK
IC2051
the DEF PCB DEF PCB
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