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18
IC reference data:
1. N701 (LC86F3232A)
Pin
No.
Function Voltage
V
Pin
No.
Function
Voltage
V
1 n.c
22 R-input 0.06
2
Connect to 5V resistor
via a
5.03 23
G-input
0.06
3
Connect to 5V resistor
via a
5.03 24
B-input
0.07
4
Connect to 5V
resistor via a
5.04 25
Blank
0.15
5
Connect to 5V
resistor via a
5.03 26
n.c.
0.01
6
Connect to 5V
resistor via a
5.03
27
I2C bus control 0
4.85
7
Standby
0.03
28
I2C bus control 0
4.79
8
n.c.
0
29
I2C bus control 1
5
9
Ground
0
30
I2C bus control 1
4.99
10 Scl 1.47
31
Connect to 5V resistor
Via a
5.03
11 Sdl
2.2
32
Connect to 5V resistor
Via a
5.04
12 Power
supply 4.99 33
Connect to 5V resistor
Via a
5.03
13
Key input
0.24
34
Remote control
0.03
14 AFT
in 2.77
35
Connect to 5V resistor
Via a
5.02
15 AGC
in
1.7
36
Connect to 5V resistor
Via a
5.01
16 n.c.
1.7
37
Mute
0.11
17 Reset 4.99
38 AV
select
0.02
18 Filter 3.13
39
Connect to 5V resistor
Via a
5.02
19 CVBS
in 3.25
40
Connect to 5V resistor
Via a
5.01
20
V syn input
4.8
41
Connect to 5V resistor
Via a
5.01
21
H syn input
4.12
42
Connect to 5V resistor
Via a
5.02
Summary of Contents for TV-8888-09
Page 20: ...20 Troubleshooting 1 OK No Loading circuit gone bad ...
Page 21: ...21 2 Whether there is a black character ...
Page 22: ...22 3 Check the 12V power circuit Trouble with the CRT or PCB ...
Page 23: ...23 4 Observe a horizontal bright line ...
Page 24: ...24 5 6 There is picture display but no sound ...
Page 26: ...26 8 Bulk Diagram ...
Page 27: ...27 SCHEMATIC DIAGRAM ...