LG 50PG20 Training Manual page 97

Advanced single scan troubleshooting
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Control Connector P111 Slide 3 of 3 Voltage Readings
Control Connector P111 Slide 3 of 3 Voltage Readings
P111 CONNECTOR "Control PWB" to P102 "Y-SUS PWB"
Pin
Label
STBY
1
2
3
4
Not Used
Pin 10 Below is actually Pin 1 of
5
P111
Pins are very close together read
6
voltages safely.
7
8
9
10
11
Gnd
Gnd
12
Z-BIAS
0V
13
Gnd
Gnd
14
Z-ENABLE
0V
15
Gnd
Gnd
16
n/c
n/c
17
5V
OV
18
5V
OV
19
5V
OV
20
5V
OV
Diode
Run
Pin
Mode
21
22
23
Y-Enable
24
25
26
27
Set_DN_2
28
29
30
Gnd
Gnd
31
SLOPE_RETE
1.71V
OL
32
Gnd
Gnd
33
DET_LEVEL
0V
OL
34
Gnd
Gnd
35
DELTA_Vy
n/c
OL
36
4.75V
1.11V
37
PASS_TOP
4.75V
1.11V
38
4.75V
1.11V
39
Set_DN2
4.75V
1.11V
40
Diode
Label
STBY
Run
Mode
5V
OV
4.75V
1.17V
n/c
n/c
n/c
0V
0.6V
1.37V
Gnd
Gnd
Gnd
X_ER
0V
2.9V
1.36V
Gnd
Gnd
Gnd
0V
1.4V
1.37V
Gnd
Gnd
Gnd
SET_UP
0V
1.9V
1.37V
Gnd
Gnd
Gnd
0V
0V
1.37V
Gnd
Gnd
Gnd
0V
0V
1.37V
Gnd
Gnd
Gnd
0V
0.16V
1.37V
Gnd
Gnd
Gnd
0V
0.2V
1.37V
Gnd
Gnd
Gnd
0V
0.2V
1.37V
Gnd
Gnd
Gnd
97
Diode Mode Readings with the PCB Disconnected.
Pin
Label
STBY
41
SET_UP
0V
OL
42
Gnd
Gnd
43
ER_UP
0V
Gnd
44
Gnd
Gnd
45
ER_DN
0V
Gnd
46
Gnd
Gnd
47
SUS_UP
0V
Gnd
48
Gnd
Gnd
49
SUS_DN
0V
Gnd
50
Gnd
Gnd
51
DATA
0V
Gnd
52
Gnd
Gnd
53
OSC2
0V
Gnd
54
Gnd
Gnd
55
OSC1
0V
Gnd
56
Gnd
Gnd
57
STB
0V
Gnd
58
Gnd
Gnd
59
CLK
0V
Gnd
60
Gnd
Gnd
Plasma Spring 2009
Diode
Run
Mode
0.26V
1.37V
Gnd
Gnd
2V
1.37V
Gnd
Gnd
1.2V
1.37V
Gnd
Gnd
2V
1.37V
Gnd
Gnd
0V
1.37V
Gnd
Gnd
0.6V
1.37V
Gnd
Gnd
3V
1.37V
Gnd
Gnd
0V
1.37V
Gnd
Gnd
0.76V
1.37V
Gnd
Gnd
3.2V
1.37V
Gnd
Gnd
50PG20

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