XOCECO LC-42T17, Service Manual

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the indicator of the infrared receive board is red light.
b. Press the POWER button; the indicator change to blue light, the LED1 of main board is flicker of
slow.
c. Write program to N102
d. Check if various channels are normal.
3.2 The TV board adjustment
a. Connect the high frequency board to main board, and connect the X501 and X502 to the supply
power.
b. Press the POWER button, the indicator change to blue light.
c. Check if the picture and sound of TV/AV1/AV2/S/YPBPR1/TPBPR2 and sound of HDMI/VGA
channels are normal. Check the STEREO and SAP. Check the picture and sound of the
TV/AV1/S/AV2.
3.3 the unit adjustment
After install the unit, check it is normal working.
3.4 Aging
a. Select the TV channel, the screen is noise wave of no signal TV
b. Aging an hour.
3.5 ADC correction and white balance adjustment (use white balancer CA210 and signal generator
VG849)
Enter the factory menu method: press “1”
→ “9” → “7” → “9” button in the window menu state.
Note: warm color temperature coordinate (285, 294); warm color temperature coordinate (284, 299).
LC-42T17, LC-47T17 and LC37T25/T7 cool color temperature coordinate (270, 283).
3.5.1 HDMI channel
a. Input 8 level gray signal 720p/60Hz.
b. Brightness to 50, contrast to 50.
c. Color temperature to warm.
d. Enter color temperature setup menu.
e. Adjust RED GAIN, GREEN GAIN, BLUE GAIN, until the fifth level color coordinate (270, 283).
3.5.2 D-SUB channel
a. Input the 16 level gray signal 1027 x 768 @ 60(TIMING: 889, PATTERN: 921)
b. Brightness to 50, contrast to 50.
c. Enter the ADC auto correction
d. Color temperature to warm.
e. Enter the color temperature setup menu.
f. Input the 8 level gray signal 1027 x 768 @ 60(TIMING: 889, PATTERN: 920)
g. Adjust the RED OFFSET, GREEN OFFSET, BLUE OFFSET, until the third level color coordinate
(284, 299).
h. Adjust the RED GAIN, GREEN GAIN, BLUE GAIN, until the seventh level color coordinate (284,
299).
i. Repeat the g and h step, until the third and the seventh level color coordinate (284, 299).
j. Color temperature to cool.
k. Enter the color temperature setup menu.
l. Adjust the RED OFFSET, GREEN OFFSET, BLUE OFFSET, until the third level color coordinate
(270, 283).
m. Adjust the RED GAIN, GREEN GAIN, BLUE GAIN, until the seventh level color coordinate (270,