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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 (-)
of K6D.
2. Adjust the voltage by using VR611 as following.
A
C Input Reading
230V 380V ±2V
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.
● 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.
Electrical Adjustments
Output Voltage adjustment (For PLC-XU46]
[Adjustment Condition]
● Input signal
Video signal .......................... 1.0Vp-p/75Ω terminated, 16 steps gray
scale (Composite video signal)
Computer signal .................... 0.7Vp-p/75Ω terminated, 16 steps gray
scale pattern (XGA)
Component Video signal ...... 0.7Vp-p/75Ω terminated, 16 steps gray
scale (Component video signal with
480p or 1080i format)
● Picture control mode .............. “STANDARD” mode unless otherwise
noted.
Note:
* Please refer to “Service Adjustment Menu Operation” for entering the
service mode and adjusting the service data.
16 steps gray scale pattern
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 (-)
of K6D.
2. Adjust the voltage by using VR611 as following.
A
C Input Reading
230V 370V ±2V
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.
Output Voltage adjustment (For PLC-XU45]
1. Enter the service mode and select group no. “11” and
item no. “0”. Set data value to “1”.
2. Connect a digital voltmeter to test point “TP12V1”(+)
and chassis ground (-). Select item no. “1” and adjust
the voltage to be 8.0 ±0.1Vdc by changing the data
value.
3. Connect a digital voltmeter to test point “TP12V2”
(+) and chassis ground (-). Select item no. “2” and
adjust the voltage to be 10.0 ±0.1Vdc by changing
the data value.
4. Select group no. “11” and item no. “0” and set data
value to “3”.
5. Connect a digital voltmeter to test point “TP12V1”(+)
and chassis ground (-). Select item no. “3” and adjust
the voltage to be 13.5 ±0.1Vdc by changing the data
value.
6. Connect a digital voltmeter to test point “TP12V2”
(+) and chassis ground (-). Select item no. “4” and
adjust the voltage to be 13.5 ±0.1Vdc by changing
the data value.
z Fan Voltage adjustment (For PLC-XU46]
1. Enter the service mode and select group no. “11” and
item no. “0”. Set data value to “1”.
2. Connect a digital voltmeter to test point “TP12V1”(+)
and chassis ground (-). Select item no. “1” and adjust
the voltage to be 8.0 ±0.1Vdc by changing the data
value.
3. Connect a digital voltmeter to test point “TP12V2”
(+) and chassis ground (-). Select item no. “2” and
adjust the voltage to be 9.0 ±0.1Vdc by changing
the data value.
4. Select group no. “11” and item no. “0” and set data
value to “3”.
5. Connect a digital voltmeter to test point “TP12V1”(+)
and chassis ground (-). Select item no. “3” and adjust
the voltage to be 13.5 ±0.1Vdc by changing the data
value.
6. Connect a digital voltmeter to test point “TP12V2”
(+) and chassis ground (-). Select item no. “4” and
adjust the voltage to be 13.5 ±0.1Vdc by changing
the data value.
z Fan Voltage adjustment (For PLC-XU45]
