Download Print this page

LG 42PQ301R Service Manual page 49

Chassis : pp91b

Advertisement

Repair Process-Reference data
PDP TV
▣ Check Method
① Check whether there is short between Vs & GND of P201 Connector
② Check FUSE open
③ Check voltage of Diode , FET by using Digital Multi Meter
HS1
SUS UP/Down FET & Diode
Q11~Q16 FET(6ea)
D11 , D12 Diode(2ea)
Measuring Method
<Specification>
Position
Direction
HS1
Forward
Reverse
HS2
Forward
Reverse
Copyright ⓒ 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
A. Picture Problem
Symptom
Y-Sus Board Checking Method(42G2)
HS2
PASS/ER UP/Down FET , Diode
Q21~Q23 FET(3ea)
D21~D24 Diode(4ea)
Diode
Circuit No.
Q11~Q14
D11,12
Q15
0.3~0.4V
0.3~0.4V
0.4~0.5V
OL(Overload)
Q21~Q23
D21~D24
0.4~0.5V
0.3~0.4V
OL(Overload)
FET
Q16
0.3~0.4V
A8
Making
2009. 2 . 1
Revision
HS1
HS2
ⓒ LG Electronics. Inc.2009
A8
Fuse
Fuse
LGE Internal Use Only

Advertisement

loading

This manual is also suitable for:

42pq301r-zb