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● Circuit Adjustment
CAUTION: The each circuit has been made by the fine adjustment at factory. Do not attempt to adjust the following
adjustments except requiring the readjustments in servicing otherwise it may cause loss of performance and
product safety.
[Adjustment Condition]
● Input signal
Computer signal ............................. 0.7Vp-p/75Ω terminated, 16 steps gray
scale pattern, 1 line dot pattern, 100% and
50% whole white pattern (720p format)
Component Video signal ............. 0.7Vp-p/75Ω terminated, 16 steps gray
scale pattern (480i, 480p, 720p and 1080i
format), 100% and 50% whole white pat-
tern (480p format)
Video signal ..................................... 1.0Vp-p/75Ω terminated, 16 steps gray
scale pattern (NTSC composite video sig-
nal)
● Image level selection........................ “Dynamic” mode unless otherwise noted.
Note:
* Please refer to “Service Adjustment Menu Operation” for entering to the
service mode and adjusting the service data.
White 100%
Black 100%
白100%
黒100%
16 steps gray scale pattern
Equipment Digital voltmeter
1. Enter the service mode.
2. Change data values of each test points to adjust the fan
minimum output voltage.
Item no. Fan Location Test Point Adjustment value
250 - 8 FN901 TPFAN1 3.5 ±0.05Vdc
250 - 9 FN902 TPFAN2 3.5 ±0.05Vdc
250 - 10 FN903 TPFAN3 3.5 ±0.05Vdc
250 - 11 FN904 TPFAN4 3.5 ±0.05Vdc
GND TE6601
Note:
The location of each fan is refer to the parts list.
FN905 is non adjustment.
1. Fan minimum voltage adjustment
WARNING : USE UV RADIATION EYE AND SKIN PROTECTION
DURING SERVICING
CAUTION: To prevent suffer of UV radiation, those adjustments
must be completed within 25 minutes.
Equipment Digital voltmeter
1. Enter the service mode.
2. Change data values of each test points to adjust the fan
minimum output voltage.
Item no. Fan Location Test Point Adjustment value
250 - 12 FN901 TPFAN1 13.8 ±0.05Vdc
250 - 13 FN902 TPFAN2 13.8 ±0.05Vdc
250 - 14 FN903 TPFAN3 13.8 ±0.05Vdc
250 - 15 FN904 TPFAN4 13.8 ±0.05Vdc
GND TE6601
Note:
The location of each fan is refer to the parts list.
FN905 is non adjustment.
2. Fan max voltage adjustment
Electrical Adjustments
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