Circuit Adjustments - Sanyo PLC-XU47 Service Manual

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
Video signal .......................... 1.0Vp-p/75Ω terminated, 16 steps gray
Computer signal .................... 0.7Vp-p/75Ω terminated, 16 steps gray
Component Video signal ...... 0.7Vp-p/75Ω terminated, 16 steps gray
● Picture control mode .............. "STANDARD" mode unless otherwise
Note:
* Please refer to "Service Adjustment Menu Operation" for entering the service mode and adjusting the service
data.
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
AC Input
230V
Caution:
Be sure to connect the lamp when taking this adjust-
ment.
* This adjustment is not required even if the power
board is replaced because this adjustment is carried
out before parts shipment.
scale (Composite video signal)
scale pattern
scale (Component video signal with
480p, 575p, 720p or 1080i format)
noted.
VR611
as following.
Reading
380V ±2V
White 100%
z
Fan Control adjustment
1. Set the lamp mode to "Normal" and then enter the
service mode.
2. Connect a digital voltmeter to test point "
and chassis ground (-). Select item no. "
change data value to adjust voltage to be
3. Connect a digital voltmeter to test point "
(+) and chassis ground (-). Select item no. "
change data value to adjust voltage to be
4. Connect a digital voltmeter to test point "
and chassis ground (-). Select item no. "
change data value to adjust voltage to be
-23-
16 steps gray scale pattern
Black 100%
TPFANA
6.0
TPFANB
81
6.0
TPFANC
6.0
" (+)
80
" and
±0.1V.
"
" and
±0.1V.
" (+)
82
" and
±0.1V.