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
Y-Sus Board Checking Method(50G2)
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
▣
Measuring Method
A10
OL(Overload)
Reverse
0.3~0.4V
0.3~0.4V
Forward
D21
Q22,23
HS2
Q16~Q18
D11
Q11~Q13
HS3
0.4~0.5V
0.3~0.4V
0.3~0.4V
Forward
HS1
OL (Overload)
Reverse
Position
OL(Overload)
Reverse
0.4~0.5V
0.3~0.4V
0.4~0.5V
Forward
D32~D36
Q34
Q31,32
Circuit No.
Direction
<Specification>
HS1
HS2
HS3
Q31,Q32,Q34 FET(3ea)
D32~D36  Diode(4ea)
Q11~Q13, Q16~Q18 FET (6ea)
D11 Diode (1ea)
HS1
HS2
HS3
Q22,Q23 FET(2ea)
D21 Diode(1ea)
FET
Diode
Fuse
Fuse
A10
ⓒ LG Electronics. Inc.2009
Making 
Revision 
2009. 2 . 1
PDP TV
Symptom
A. Picture Problem
Z-Sus Board Checking Method(50G2)
Repair Process-Reference data
A11
① Check 15V input voltage on P100 Connector 
② Check 5V,V
S
input voltage on P101 Connector 
③ Check FUSE open
④ Check voltage of Diode , FET by using Digital Multi Meter)
HS200
HS2
Diode
FET
▣ Check Method
▣
Measuring Method
D311,312
Q313~Q318
Q311~312
0.5V~0.6V
HS201
HS200
0.3V~0.4V
0.3V~0.4V
Forward
OL(Overload)
Reverse
Position
OL(Overload)
Reverse
0.3V~0.4V
0.4V~0.5V
Forward
Diode
FET
Classify
Direction
<Specification>
P100
D301 D302       Q301    Q303    D305 
Q318                   Q315       Q313        Q312
HS200
HS200
HS201
HS201
D311
D312
HS201
Fuse
P101
D303                     Q304    D306
Q317
Q314
Q311
A11
ⓒ LG Electronics. Inc.2009
Making 
Revision 
2009. 2 . 1
PDP TV
Symptom
A. Picture Problem
Check 5V, 12V on Power B/D
Repair Process-Reference data
A12
▣ Measure 5V voltage
Power Board
Pin Map
Power B/D↔Main B/D
(P813)          (P1100)
P813
P1100
P813
▣ Measure 12V voltage
A12
ⓒ LG Electronics. Inc.2009
Making 
Revision 
2009. 2 . 1
PDP TV
Symptom
A. Picture Problem
Control Board Checking Method(42G2/50G2)
Repair Process-Reference data
A13
① Check input voltage(5V of P101) on Control B/D
② Check LED On
③ If LED light doesn’t appear, check Crystal X101 output
④ Check 3.3V, 5V,1.8V FET
⑤ Check MCM at VS_DA by using Multi meter
▣ Checking Method
③ Check Crystal(X101)
3.3 V
5 V
1.8 V
② Check LED On
① Check Input voltage
GND
④ Check Crystal(X101)
Check oscillation of Crystal
(Normal: 100 MHZ, 1.6v)
MCM Check point
(+)VS_DA / (-)  GND 
(Normal: 3.3V )
⑤ Check MCM
A13
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