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Alignment instructions
1. Safety Instructions
Be sure to switch off the power supply before replacing or welding any components or
inserting/plugging in connection wire Anti static measures to be taken (throughout the entire
production process!):
a) Do not touch here and there by hand at will;
b) Be sure to use anti static electric iron;
c) It's a must for the welder to wear anti static gloves.
Please refer to the detailed list before replacing components that have special safety requirements.
Do not change the specs and type at will.
2. Test equipment
VG-848 (VGA, YPbPr signal generator)
VG-849 (HDMI digital video signal generator)
CA210 (color analyzer)
3
Alignment flow
3.1 Voltage of power supply test
According to the wiring specified by Product Specification, connect power board, main/data
processing board, IR/light sensor board, key board and backlight board correctly, then switch on main
power and press key "
a)
Test each pin voltage of socket X401 (＜ 26" models) and 13-pin power socket X601 (≥ 26"
models) in turn, please refer voltage of CCFL to Table 1, refer voltage of LED to Table 2:
Pin
1
Vol.
≥2.5 V
Pin
1
Vol/
≥2.5 V
b)
Test each pin voltage of 5-pin power socket X606 in turn ( ≥ 26" models), please refer voltage
to Table 3:
Pin
Vol.
" to turn on the TV set.
Table 1
Each pin voltage of 13-pin power socket for CCFL models
2
3
4、5
≥2.0 V
0
12 V±5%
Table 2
Each pin voltage of 13-pin power socket for LED models
2
3
4
0
5 V±5%
0
5 V±5%
Table 3
1、2
24 V±5%
6、7
8
0
N.C.
5
6
7、8
N.C.
0
Each pin voltage of 5-pin power socket
1
9
11
0
5 V±5%
0
5 V±5%
9、10
11
12 V±5%
0
≥2.0 V
3、4、5
0
1
13
2
0
≥2.5 V
12
13
≥2.5 V
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