LG PF-43A20, Service Manual

Page: 25 / 59

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