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Adjustment Instruction
1
Safety Instructions
1.1 Power supply must be cut off when replacing or welding any component or inserting / pulling out
connective lines;
1.2 Anti-electrostatic measures must be carried out during the whole producing processes!
a)
Do not touch IC by hands at will;
b)
Use anti-electrostatic iron;
c)
Welder must wear anti-electrostatic glove;
1.3 Replacing any component with special safety requirement must refer to component list without
changing its specification and model at will.
2
Adjustment Equipments
Multimeter or oscilloscope
VG-849
CA-210
USB
DVD (support HDMI 1.4 ) or equipments with the same functions
3
Adjustment Processes
3.1 Power voltage checking
According to the wiring diagram specified by "Product Specification", connect power board
assembly, data processing assembly, IR/Key board assembly, backlight board assembly correctly,
supply with power, press button
Make sure the voltages of socket X101 each pin on the main board are correct.. Voltage value
and range are listed as Table 1:
X101
Pin
Voltage
≤5.2 V
Function
BL_ON
to power on the TV set.
Table 1
1
2
3
5
≤5.2 V
V±5%
+5V
BL_PWM
STB
Voltage of X101 each pin
4
5
6,7
5
≤5.2V
0
V±5%
Main
PWR_SW
GND
5V
9
10,11
12,13
12
0
12V±5%
V±5%
MAIN
AMP_PWR
GND
12V
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