Sanyo PLV-WF20, Service Manual

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Electrical Adjustment
1. +6V adjustment
Adjust the voltage by using Vr652 on the power board
as following.
Connection Adjustment value
(+) 2pin of K6d 6.35 ± 0.05V
on the Power Board
(–) Chassis GND
2. AV video signal adjustment (Y)
Equipment Oscilloscope
Input mode Video mode (Composite)
Input signal 100% color bar (NTSC)
Picture mode Normal
1. Enter the service mode.
. Connect an oscilloscope to test point.
3. Change data value.
Adjust the amplitude
A
to be the value below.
Group No. Connection Adjustment value
300 - 2 tP211 0.7 ± 0.05V
3. AV video signal adjustment (C)
Equipment Oscilloscope
Input mode Video mode (Component)
Input signal 100% color bar (NTSC)
Picture mode Normal
1. Enter the service mode.
. Connect an oscilloscope to test point.
3. Change data value.
Adjust the amplitude
A
to be the below.
Group No. Connection Adjustment value
300 - 3 tP221 0.7 ± 0.05V
A
A
4. LCD Panel L/R Setting
1. Enter the service mode.
. Check the data value. (90 - 0)
Group No.
Value Panel type
290 - 0 0 L
290 - 0 20 r
3. Set the each data value.
Group No.
Value Panel type
290 - 1 0 L
290 - 1 10 Initial
290 - 1 20 r
The initial data of 90 -1 is "10".
Down or up the data value to "0" or "0".
It automatically returns to initial data "10" after the set-
up.
4. Check the data value. (90 -0).
Confirm the data value was changed.
Group No.
Value Panel type
290 - 0 0 L
290 - 0 20 r
Notice:
After Main Board (or IC1861) replacement, Check ser-
vice data 90 - 0 and LCD panel / Prism assembly type
(R or L).
Set the each data value. (90 -1).
The adjustment data is stored Main Board (IC1861)