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Part 4: Troubleshooting
4-13
1
R
Reset
Fixed “H”
2
SCL
IIC SCL
Active “L”
3
SDA
IIC SDA
Active “L”
4
AO5
Not used
5
AO6
VCOMR
6
AO7
VCOMG
7
AO8
VCOMB
8
VrefL
D/A converter lower ref. voltage Connected to GND
9
VrefU1
D/A converter upper ref. voltage (CH5~CH8) Connected to Vcc
10
GND
GND
GND
11
VrefU2
D/A converter upper ref. voltage (CH1~CH4) Connected to Vcc
12
AO1
NRSB
13
AO2
NRSA
14
AO3
Not used
15
AO4
Not ussed
16
Vcc
5V
Vcc (5V)
17
Vdd
5V
Vdd (5V)
18
CS2
Chip Select 2
Fixed “L”
19
CS1
Chip Select 1
Fixed “L”
20
CS0
Chip Select 0
Fixed “H”
Pin No.
Name
Function
Action
2.7 IC Bus DA Converter (IC2571) Port Functions
Summary of Contents for LV-7355J
Page 9: ...Part 1 General Information ...
Page 22: ...Part 2 Repair Information ...
Page 43: ...Part 3 Adjustment ...
Page 65: ...Part 4 Troubleshooting ...
Page 82: ...Part 4 Troubleshooting 4 17 BA7078AF Selector IC6241 CXA2101AQ RGB Matrix IC4101 ...
Page 85: ...Part 4 Troubleshooting 4 20 ML60851 USB I F IC9801 M62393 D A IC2571 ...
Page 86: ...Part 4 Troubleshooting 4 21 TB1274AF Video Decoder IC1101 TA1318N AFC Detector IC6171 ...
Page 88: ...Part 5 Parts Catalog ...
Page 89: ......
Page 107: ...Part 6 Electrical Diagrams ...
Page 117: ......