Sanyo 1 122 280 00, Руководство по обслуживанию, Страница: 23 / 96

-23-
[Adjustment Condition]
●
Input signal
Video signal .......................... 1.0Vp-p/75
Ω
terminated, 16 steps gray
scale (Composite video signal)
Computer signal .................... 0.7Vp-p/75
Ω
terminated, 16 steps gray
scale pattern
Component Video signal ...... 0.7Vp-p/75
Ω
terminated, 16 steps gray
scale (Component video signal with
480p, 575p, 720p 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.
White 100%
Black 100%
●
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
16 steps gray scale pattern
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 Reading
230V 380V ±2V
Caution:
Be sure to connect the lamp when taking this adjust-
ment.
Output Voltage adjustment
1. Set the lamp mode to "Normal" and then enter the
service mode.
2. Connect a digital voltmeter to test point “
TPFANA
” (+)
and chassis ground (-). Select item no. “
80
” and
change data value to adjust voltage to be
6.0
±0.1V.
3. Connect a digital voltmeter to test point “
TPFANB
”
(+) and chassis ground (-). Select item no. “
81
” and
change data value to adjust voltage to be
6.0
±0.1V.
4. Connect a digital voltmeter to test point “
TPFANC
” (+)
and chassis ground (-). Select item no. “
82
” and
change data value to adjust voltage to be
6.0
±0.1V.
z
Fan Control adjustment
* This adjustment is not required even if the power
board is replaced because this adjustment is carried
out before parts shipment.