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 oscillo
scope
VG-849
CA-21
0
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
to power on the TV set.
Make sure the voltages of socket X601 each pin on the main board are correct.
. Voltage value
and range are listed as
Table 1:
Table 1 Voltage of X
6
01 each pin
X601
Pin1,2 3,4
5 6 7,8
9
10 11
12 13
Voltage 12
V±5%
0 12
V ±
5%
0
≤
5.2V 5V
±
5%
5V±5%
≤
5.2V
≤
5.2V
Function AMP+PWR
GND MAIN
12V
NC GND
PWR_SW
MAIN
5V
STANDBY
5V
BL_PWM
BL_ON
Summary of Contents for LED-19XZ11
Page 30: ...Power board ...
Page 32: ...APPENDIX B Exploded view LED 19XZ11 ...
Page 37: ...August 2011 ...
