Main Board - LG 50PS80 Training Manual
Lg 50ps80 plasma display training manual
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Also See for 50PS80:
- Owner's manual (195 pages) ,
- Specifications (2 pages) ,
- Manual de usuario (123 pages)
Table of Contents
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Pin
Q201 Q202
Pin
G
E
0V
0V
S
3.3V
3.3V
B
D
3.3V
3.3V
C
IC1004
P1108
D1010
Q1005
Q1006
IC1108
2
3.3VST-Micro
n/c
1) Gnd
3
1
Q1006
IC1108
2) 3.3V
P1111
3) 5V-ST
P1101
IC1106
Micom
B
E
Q1102
C
Audio Mute
Q901
C
E
B
IC900
E
B
C
Q900
Q801
P900
S) 2.5V
G) 3.3V
D) 3.2V
B) 2.5V
S
Q801
IC802
B
IC601
1) Gnd
2) 1.8V
C
3) 3.3V
C
D801
50PS80 MAIN PWB COMPONENT VOLTAGES
50PS80 MAIN PWB COMPONENT VOLTAGES
Q500 Q501
Q602
Q703 Q704 Q705 Q706 Q707 Q708 Q709 Q900 Q901
3.0V
2.2V
0V
0V
0V
2.4V
1.6V
0V
0V
0V
0V
0V
5V
0V
0V
P203
Q201
D
D
Q202
C
S
G S
G
A
Video
Q1007
Reset
IC1007
BCM
Reset
IC102
1 (3.3V)
2 (0.0V)
3 (3.3V)
X1102
10Mhz
EEPROM
IC1103
IC1006
Main Board
Micom
Q1004
Reset
IC601
IC602
Main Run / *Stby Voltages
C
Q602
IC1004
IC1006
Q1005
E
B
3.4V
A2.5V
1.8V
Pin
Regulator
Regulator
DDR B+
1
0V
6.6V
1.78V
2
5V / 0.5V
5V / 0.5V
1.78V
3
3.3V
2.5V
1.78V
G
4
Gnd
Gnd
3.83V
D
5
0.9V
0.9V
2.44V
1.2V
2.44V
6
1.1V
A
3.29V
7
3.34V
2.44V
8
3.57V
3.57V
2.44V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
3.3V
0V
0V
0V
0V
0V
IC1018
8V Reg
1 (12.0V) In
2 (0.0V)
P203
3 (8.0V) Out to IC1008
LVDS Video test
points
IC1008
P201
n/c
IC103
L300
IC100
X300
IC1107
BCM
54Mhz TP
Q709
Q706 Q708
C
C
C
C
Q707
E
B
B
E
B
B
E
C
C
E
B
Q705
B
E
B
E
C
Q704
Q703
TUNER TU503
19 Video
TDVW-H103F
16 SIF
15 (5V)
13 DIF -
Q1006
Q1007
Q1004
12 DIF +
1.2V
IC1007
+5V-B
Core B+
Source
Reset
TUNER
GND
1.26V
0.12V
1.26V
5V
GND
4 (5V)
1.26V
5V
GND
1 (n/c)
3.4V
2.53V
5V
4.97V
3.3V
1.26V
1.26V
4.97V
0.12V
IC1105 5V Switch
IC603
1.26V
4.97V
5Vstby (16) In
4.97V
1.26V
5V (10, 11) Out
RS232
114
Q1102
D801 D1010
0V
A-6V
0V
3.2V
0V
0.6V
3.0V
C-5V
3.3V
0V
IC1005
Main PCB IC's
Main PCB IC's
Pin
IC103
IC602
3.3V
0V
1
2
3.3V
0V
3
0V
0V
4
0V
0V
5
3.3V
3.7V
6
3.3V
4.4V
7
0V
5.0V
8
3.3V
5.0V
9
---
---
10
---
---
E
11
---
---
12
---
---
13
---
---
Q501
14
---
---
C
* The load from the
B
C
E
DVM will cause the
unit to shut down.
E
B
Q500
IC1007
IC1018 IC1107
6.V
0V
5V
*0.3V
3.3V
0V
0.6V
0.9V
3.3V
0.5V
0.9V
3.3V
3.8V
1.7V
0V
0.5V
3.3V
5V
0V
1.7V
0.9V
5.0V
0V
5.0V
3.4V
0V
1.2V
2.6V
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