Panasonic PT-VX505NU Service Manual page 42

Electrical Adjustments
1. Fan voltage adjustment
Equipment Digital voltmeter
1. Enter the service mode.
2. Adjust the voltage on each test point by changing the
data values of Group - No.
Group - No. Test Points
250 - 0
TPFANA
250 - 1
TPFANA
250 - 2
TPFANB
250 - 3
TPFANB
250 - 4
TPFANC
250 - 5
TPFANC
250 - 6
TPFAND
250 - 7
TPFAND
250 - 8
TPFANE
250 - 9
TPFANE
250 - 10
TPFANF
250 - 11
TPFANF
250 - 12
TPFANG
250 - 13
TPFANG
2. Panel type check and setting
* Before setting, you need to check which type of LCD panel
is placed on the projector according to the item "LCD pan-
el/prism assy removal" in the chapter "Optical Parts Disas-
sembly".
1. Enter the service mode.
2. Panel type check
Select Group "290",No. "0" check the data value as fol-
lows;
Data value: 0
Data value: 20
If the mounted LCD panel type and set panel mode are
differ, take the step below.
3. Panel type mode setting
Select Group "290", No. "1" and change data value
from 10 to 0 or 20 depending on your LCD panel type.
When the data value reaches 0 or 20, it returns to 10
quickly. The gamma-characteristics changes according
to your selection.
Adjustment value
3.5V+0.1,-0Vdc
13.8V+0,-0.1Vdc
3.5V+0.1,-0Vdc
13.8V+0,-0.1Vdc
3.5V+0.1,-0Vdc
13.8V+0,-0.1Vdc
3.5V+0.1,-0Vdc
13.8V+0,-0.1Vdc
3.5V+0.1,-0Vdc
13.8V+0,-0.1Vdc
4.5V+0.1,-0Vdc
13.8V+0,-0.1Vdc
4.5V+0.1,-0Vdc
13.8V+0,-0.1Vdc
For L-type of LCD panel
For R-type of LCD panel
Adjustments item no. [3] and [5] are carried out
at the spare parts shipment in the factory, there-
fore they are not required when the MAIN board is
replaced with new one.
3. Auto calibration adjustment [PC]
Input mode
Input signal
Signal pattern
1. Enter the service mode.
260
2. Select Group "
1
to " ".
The projector begins auto-calibration and then "OK"
will appear on the screen.
4. Auto calibration adjustment [Component]
Input mode
Input signal
Signal pattern
1. Enter the service mode
260
2. Select Group "
1
to " ".
The projector begins auto-calibration and then "OK"
will appear on the screen.
5. Auto calibration adjustment [Video]
Input mode
Input signal
Signal pattern
1. Enter the service mode.
260
2. Select Group "
0
value from " " to "
OK
pleted, " " will appear on the screen.
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Computer 1 (RGB)
XGA Computer signal
16-step gray scale
0
", No. " " and set the data value
Computer 1 (Component)
480i component signal
8 color 100% color bar
0
", No. " " and set the data value
Video
Composite video signal
16-step gray scale
0
", No. " " and then change data
1
". After the auto-calibration com-