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Electrical Adjustments
● Circuit Adjustments
CAUTION: The each circuit has been made by the fine adjustment at factory. Do not attempt to adjust the follow-
ing adjustments except requiring the readjustments in servicing otherwise it may cause loss of per-
formance and product safety.
[Adjustment Condition]
● Input signal
Video signal .......................... 1.0Vp-p/75Ω terminated, 16 steps gray
Computer signal .................... 0.7Vp-p/75Ω terminated, 16 steps gray
Component Video signal ...... 0.7Vp-p/75Ω terminated, 16 steps gray
● Picture control mode .............. "STANDARD" mode unless otherwise
Note:
* Please refer to "Service Adjustment Menu Operation" for entering the
service mode and adjusting the service data.
Output Voltage adjustment
After replacing the Power Board, PF.C. Board, read-
just the Output voltage adjustment as follows.
1. Connect a digital voltmeter to pins 1 (+) and 3 (-)
K6D
of
.
2. Adjust the voltage by using
AC Input
230V
Caution:Be sure to connect the lamp when taking
this adjustment.
* This adjustment is not required even if the power board is
replaced because this adjustment is carried out before
parts shipment.
z
Fan Voltage adjustment
1. Enter the service mode and select group no. "
0
item no. "
". Set data value to "
2. Connect a digital voltmeter to test point "
and chassis ground (-). Select item no. "
8.0
the voltage to be
value.
3. Connect a digital voltmeter to test point "
(+) and chassis ground (-). Select item no. "
adjust the voltage to be
the data value.
11
4. Select group no. "
" and item no. "
3
value to "
".
5. Connect a digital voltmeter to test point "
and chassis ground (-). Select item no. "
13.5
the voltage to be
value.
6. Connect a digital voltmeter to test point "
(+) and chassis ground (-). Select item no. "
adjust the voltage to be
the data value.
scale (Composite video signal)
scale pattern (XGA)
scale (Component video signal with
480p or 1080i format)
noted.
(For PLC-XU45]
VR611
as following.
Reading
370V ±2V
(For PLC-XU45]
11
1
".
TP12V1
1
" and adjust
±0.1Vdc by changing the data
TP12V2
2
" and
9.0
±0.1Vdc by changing
0
" and set data
TP12V1
3
" and adjust
±0.1Vdc by changing the data
TP12V2
4
" and
13.5
±0.1Vdc by changing
Output Voltage adjustment
After replacing the Power Board, PF.C. Board, read-
just the Output voltage adjustment as follows.
1. Connect a digital voltmeter to pins 1 (+) and 3 (-)
K6D
of
.
2. Adjust the voltage by using
AC Input
230V
Caution:Be sure to connect the lamp when taking
this adjustment.
* This adjustment is not required even if the power board is
replaced because this adjustment is carried out before
parts shipment.
z
Fan Voltage adjustment
" and
1. Enter the service mode and select group no. "
0
item no. "
". Set data value to "
" (+)
2. Connect a digital voltmeter to test point "
and chassis ground (-). Select item no. "
the voltage to be
value.
"
3. Connect a digital voltmeter to test point "
(+) and chassis ground (-). Select item no. "
adjust the voltage to be
the data value.
4. Select group no. "
3
value to "
".
" (+)
5. Connect a digital voltmeter to test point "
and chassis ground (-). Select item no. "
the voltage to be
value.
"
6. Connect a digital voltmeter to test point "
(+) and chassis ground (-). Select item no. "
adjust the voltage to be
the data value.
-26-
16 steps gray scale pattern
White 100%
(For PLC-XU46]
VR611
as following.
Reading
380V ±2V
(For PLC-XU46]
1
".
TP12V1
1
8.0
±0.1Vdc by changing the data
10.0
±0.1Vdc by changing
11
0
" and item no. "
" and set data
TP12V1
3
13.5
±0.1Vdc by changing the data
13.5
±0.1Vdc by changing
Black 100%
11
" and
" (+)
" and adjust
TP12V2
"
2
" and
" (+)
" and adjust
TP12V2
"
4
" and
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