Circuit Voltage Chart; Connectors; Capacitors - LG CM8440 Series Service Manual

CIRCUIT VOLTAGE CHART

1. CONNECTORS

Location Spec
No Pin Spec (V)
Pin No Range (V)
CN106 (MAIN)
1 VKK 39 35 ~ 43
2 FL+ 7.2 na
3 FL- 2.5 na
5 -5V -5 -4.8 ~ -5.2 -5.01
7,8,9 +5.6V 5.6 5.2~5.8
13 +12V 12 11 ~ 13
14 -B -66 -64 ~ -68
15 GATE -54 -52 ~ -56
CN502
2,3 +5.6VA 5.6 5.2~5.8
CN105
13 FL- 2.5 na
19 VKK 39 35 ~ 43
20 FL+ 7.2 na
22 3.3V 3.3 3.0~3.6
30 12V 12 11 ~ 13
CN404
1,8,9 VCC 5 4.8~5.2
CN110
1,2 -B -66 -64 ~ -68
5,6 +B 66 64 ~ 68
CN504
10 VDD 3.3 3.0~3.6
CABLE Margin CABLE Margin
Input (V) Output (V)
CN901 (SMPS) CN106 (MAIN)
40.9 1.90 40.9 1.9
7.65 0.45 7.65 0.45
2.74 0.24 2.76 0.26
-0.01 -5.01 -0.01
5.67 0.07 5.66 0.06
12 0.00 11.99 -0.01
-65.8 0.20 -65.8 0.2
-53.8 0.20 -53.8 0.2
CN304(USB) CN103 (MAIN)
5.65 0.05 5.65 0.05
CN301 (Front) CN105 (MAIN)
2.83 0.33 2.78 0.28
41.3 2.30 40.8 1.8
7.35 0.15 7.32 0.12
3.26 -0.04 3.26 -0.04
11.92 -0.08 11.94 -0.06
(MD) CN404 (MAIN)
4.87 -0.13 5.08 0.08
CN902 (SMPS) CN110 (MAIN)
-65.8 0.20 -65.8 0.20
65.5 -0.50 65.5 -0.50
(BT) CN504 (MAIN)
3.27 -0.03 3.27 -0.03
3-63

2. CAPACITORS

Location Value & Spec Voltage_Spec
C102 4.7uF/50V 50V
C104 1uF/50V 50V
C106 100uF/16V 16V
C239 100uF/16V 16V
C244 47uF/16V 16V
C260 47uF/16V 16V
C311 47uF/50V 50V
C402 100uF/16V 16V
C404 47uF/16V 16V
C429 220uF/16V 16V
C479 220uF/16V 16V
C481 47uF/16V 16V
C501 1000uF/6.3V 6.3V
C517 47uF/16V 16V
C5A9 47uF/16V 16V
C643 100uF/16V 16V
C700 100uF/16V 16V
C707 2200uF/80V 80V
C728 2200uF/80V 80V
C752 1000uF/80V 80V
C798 1000uF/80V 80V
C881 100uF/16V 16V
3-64
Play back Standby
positive (+) positive (+)
1.75 2.00
0.00 0.00
10.65 10.84
3.30 3.31
5.17 5.18
5.05 5.14
41.30 41.40
5.15 5.17
3.32 3.31
5.18 5.17
1.61 1.65
0.00 0.02
3.08 3.15
1.23 1.20
1.23 1.20
5.08 5.17
0.00 0.00
65.80 65.50
65.75 65.80
65.80 65.50
65.75 65.80
11.82 11.86