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

1.0Vp-p/75terminated, 16 steps gray

Video signal

 

scale (Composite video signal)

Computer signal

0.7Vp-p/75terminated, 16 steps gray

 

scale pattern (XGA)

Component Video signal

0.7Vp-p/75terminated, 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

 

 

 

 

White 100%

Black

100%

Output Voltage adjustment (For PLC-XU45]

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.

AC Input

Reading

230V

370V ±2V

Caution:Be sure to connect the lamp when taking this adjustment.

Output Voltage adjustment (For PLC-XU46]

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.

AC 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

* This adjustment is not required even if the power board is

replaced because this adjustment is carried out before

replaced because this adjustment is carried out before

parts shipment.

parts shipment.

zFan 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 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.

zFan 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 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.

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Sanyo Output Voltage adjustment For PLC-XU45, Output Voltage adjustment For PLC-XU46, Adjustment Condition