DOWNLOAD LG 60PS80BR-TA (CHASSIS:PP91A) Service Manual ↓ Size: 9.61 MB | Pages: 68 in PDF or view online for FREE

Model
60PS80BR-TA (CHASSIS:PP91A)
Pages
68
Size
9.61 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / Plasma
File
60ps80br-ta-chassis-pp91a.pdf
Date
PREV: LG 60PS80BR-MA (CHASSIS:PP91A) Service Manual

LG 60PS80BR-TA (CHASSIS:PP91A) Service Manual ▷ View online

ⓒ LG Electronics. Inc.2009
Making 
Revision 
2009. 2 . 1
PDP TV
Symptom
A. Picture Problem
Check & Adjust –V
Y
,V
SC
,V
ZB
voltage
Repair Process-Reference data
3. VZB (
80V
) on Z-Sus B/D
. Check Point: 
R271↔J125
. Adjustment Point: 
VR200
Z-Sus Board
Adjustment Point
A6
Voltage Check & Adjustment : 
50G2
-V
Y
V
SC
V
ZB
<Module Label>
Fuse
A6
ⓒ LG Electronics. Inc.2009
Making 
Revision 
2009. 2 . 1
PDP TV
Symptom
A. Picture Problem
Fuse Checking Method
Repair Process-Reference data
A7
< Fuse check >
1) Sound comes, the fuse is OK.
2) If Fuse is defects, it should check again voltage of 5V, Va, Va after replacing the fuse. 
3) In case there are no voltage of 5V, Va, Vs, the board is failure, it need to replace the board.
Pic. 2.
Pic. 1.
< DMM mode >
A7
ⓒ LG Electronics. Inc.2009
Making 
Revision 
2009. 2 . 1
PDP TV
Symptom
A. Picture Problem
Y-Sus Board Checking Method(42G2)
Repair Process-Reference data
▣ 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
HS2
PASS/ER UP/Down FET , Diode
HS1
SUS UP/Down FET & Diode
Q11~Q16 FET(6ea)
D11 , D12  Diode(2ea)
Q21~Q23 FET(3ea)
D21~D24  Diode(4ea)
▣
Measuring Method
HS1
HS2
Fuse
A8
D21~D24
Q21~Q23
HS2
0.3~0.4V
0.4~0.5V
Forward
HS1
OL(Overload)
Reverse
Position
OL(Overload)
Reverse
0.3~0.4V
0.4~0.5V
0.3~0.4V
0.3~0.4V
Forward
Q16
Q15
D11,12
Q11~Q14
Circuit No.
Direction
<Specification>
Fuse
Diode
FET
A8
ⓒ LG Electronics. Inc.2009
Making 
Revision 
2009. 2 . 1
PDP TV
Symptom
A. Picture Problem
Z-Sus Board Checking Method(42G2)
Repair Process-Reference data
A9
① Check 5V, 15V input voltage on P2 Connector 
② Check V
S
input voltage on P3 Connector 
③ Check voltage of Diode , FET by using Digital Multi Meter)
HS1
HS2
Diode
FET
Q506 Q505  D506 Q504 Q503  D505
D501   D502  Q501 Q502 D503  D504
HS1
HS1
HS2
HS2
▣ Check Method
▣
Measuring Method
HS2
HS1
0.3~0.4V
0.3~0.4V
Forward
OL(Overload)
Reverse
Position
OL(Overload)
Reverse
0.3~0.4V
0.4~0.5V
Forward
Diode
FET
Classify
Direction
<Specification>
P2
P3
A9
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