Sanyo PLC-XF47 - Circuit Adjustments

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Electrical Adjustments
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Circuit Adjustments
CAUTION: The each circuit has been made by the ne adjustment at factory. Do not attempt to the adjust the following
adjustments except requiring the readjustments in servicing otherwise it may cause loss of perfprmance and
product safety.
WARNING : USE UV RADIATION EYE AND
SKIN PROTECTION DURING
SERVICING
CAUTION: To prevent suffer of UV radiation,
those adjustments must be
completed within 25 minutes.
White 100%
Black 100%
白100%
黒100%
16steps gray scale pattern[Adjustment Condition]
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Input signal
Computer signal ...................... 0.7Vp-p/75Ω terminated.
16 steps gray scale pattern (XGA),
100% and 50% white pattern (XGA),
1 dot line pattern (XGA)
Composite video signal ..........1.0Vp-p/75Ω terminated.
16 steps gray scale pattern,
color bar pattern (PAL, SECAM),
100% and 50% white pattern
Component video signal ........0.7Vp-p/75Ω terminated.
16 steps gray scale pattern(480i),
color bar pattern (480i)
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Picture control mode ..............."STANDARD" mode unless otherwise nited.
n
The following adjustment is the adjustment item for
Assembly power.
1-1. +6V voltage adjustment
n
The following adjustment is the adjustment item for
Switching Regulator.
1-2. +24V voltage adjustment
n
The following adjustments are the adjustment items for
Terminal board-5BNC. The adjustment data is stored to
Terminal board-5BNC(IC9913).
2. AV video signal adjustment (Y)
3. AV video signal adjustment (C)
n
The following adjustment is the adjustment item for
Assembly sub power and assembly main. The adjustment
data is stored to Assembly main (IC802).
5. Fan driving voltage adjustment
n
The following adjustments are the adjustment items for
Assembly sub power and assembly main. The adjustment
data is stored to Assembly main (IC802).
4. LCD panel L/R Setting
9. Common center adjustment
n
The adjustment data is stored to Assembly main (IC302).
6. Gain adjustment 1 (PC)
7. Gain adjustment 2 (Compsite)
8. Gain adjustment 3 (Component)
n
The adjustment data is stored to Assembly main (IC1861).
10. Gamma, White balance, White uniformity
adjustment
11. Read / Write of LCD panel gamma data when
Main Board replacing
12. Color shading correction
n
The Projector data is stored to Assembly main (IC802).
Projector used time
Lamp used time
Filter counter
Note :