Adjustment Instructions - Sanyo LED-24XR113D Service Manual

Adjustment Instructions

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 osciillograph
VG-849
CA-210
USB
DVD (included HDMI 1.4) or equipments with the same functions
3 Adjustment Processes
3.1 Power voltage test
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
Test voltage of socket X601 each pin on the main board. Voltage value and range are listed as
Table 1(a) for LCD size ≥26"; voltage value and range are listed as Table 1(b) for non-3D LCD &
LED size ≤24"; voltage value and range are listed as Table 1(c) for LED size ≥26"; voltage value
and range are listed as Table 1(d) for 3D LED size ≤24";
X601 Pin1,2
Vol. 24 V±5%
Function AMP_PWR
Table 1(b) Voltage of X601 each pin （non-3D LCD & LED size ≤24"）
X601 Pin1,2
Vol. 12 V±5%
Function AMP_PWR
X601 Pin1
Vol. ≤5.2 V ≤5.2 V
to power on the TV set.
Table 1(a) Voltage of X601 each pin （LCD size ≥26"）
3,4 5,6
0 12 V±5%
GND +12 V GND
3,4 5 6
0 12 V±5% NC
GND +12 V NC
Table 1(c) Voltage of X601 each pin （LED size ≥26"）
2 3 4
5V±5% 5V±5%
7,8 9 10
0 ≤5.2 V 5 V±5%
PWR_SW Main 5 V
7,8 9
0 ≤5.2 V
GND PWR_SW
5 6,7
≤5.2 V 0
11 12
5 V±5% ≤5.2 V
+5 V STB BL_PWM
10 11
5 V±5% 5 V±5%
Main 5 V +5 V STB
8,9 10,11
12 V±5% 0
13
≤5.2 V
BL_ON
12 13
≤5 V ≤3.6 V
BL_PWM BL_ON
12，13
24 V±5%