Service Kowhow; After Replacing The Prism Block; After Replacing The Board - Sony VPL-PX11 Service Manual

2-4. Service Kowhow

2-4-1. After Replacing the Prism Block

1. Perform Section "2-2. V-COM Adjustment."
2. Perform Section "2-5. White Balance Adjustment."

2-4-2. After Replacing the Board

. . . . . Refer to the cross table below.
. . . . . There are no need to perform the adjustment when the
board other than the BB board or C board had been
replaced.
1) When Replacing the BB Board
When the data before replacement can be read properly
1. Make a not of the data before replacement. After re-
placement, write the data into the new board with
service mode.
2. If the white balance is extremely deteriorated, perform
the white balance adjustment (Refer to Section 2-5.
White Balance Adjustment).
When the data before replacement cannot be read
1. Perform Section "2-2. V-COM Adjustment."
2. Perform Section "2-5. White Balance Adjustment."
2) When Replacing the C Board
1. Perform Section "2-2. V-COM Adjustment."
2. Perform Section "2-5. White Balance Adjustment."
3) When Replacing the Other Board
There are no need to perform the adjustment.
VPL-PX11
Cross Table of Board Replacement
Device Name Item Name
P.DRV VCOM (R)
VCOM (G)
VCOM (B)
CONT
SUB CONT R
SUB CONT G
SUB CONT B
BRT
W/B ADJUST
INPUT A-HIGH GAIN R
GAIN G
GAIN B
BIAS R
BIAS G
BIAS B
INPUT A-LOW GAIN R
GAIN G
GAIN B
BIAS R
BIAS G
BIAS B
VIDEO-HIGH GAIN R
GAIN G
GAIN B
BIAS R
BIAS G
BIAS B
VIDEO-LOW GAIN R
GAIN G
GAIN B
BIAS R
BIAS G
BIAS B
* :
When down the data befor replacement, and then
write in the data after the board replacement.
: Need adjustment
O
Value: See description.
Board Name
BB C
*
O
*
O
*
O
*
95,100 IRE
*
95,100 IRE
*
95,100 IRE
*
95,100 IRE
*
2.8 V
*
No
*
No
*
No
*
No
*
No
*
No
*
O
*
O
*
O
*
O
*
O
*
O
*
No
*
No
*
No
*
No
*
No
*
No
*
O
*
O
*
O
*
O
*
O
*
O
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