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2. CIRCUIT ADJUSTMENTS
The each circuit has been made by the fine adjustment at factory. Do not
attempt to adjust the following adjustments except requiring the
CAUTION
readjustments in servicing otherwise it may cause loss of performance
and product safety.
[Adjustment conditions]
Input signal
Video signal ............................1.0Vp-p/75Ω terminated, 16 steps gray scale
Computer signal .....................0.7Vp-p/75Ω terminated, 16 steps gray scale pattern
Component Video signal .........0.7Vp-p/75Ω terminated, 16 steps gray scale
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.
2.1 Output Voltage Adjustment
After replacing the Power Board readjust 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: 230V
Be sure to connect the lamp when taking this adjustment.
CAUTION
* This adjustment is not required even if the power board is replaced because this
adjustment is carried out before parts shipment.
(Composite video signal)
(Component video signal with 480p, 575p, 720p or
1080i format)
16 steps gray scale pattern
White 100%
Fig. 3-2
Reading: 380V ± 2V
3-11
Black 100%
Part 3: Adjustment
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