Circuit Adjustment - Sanyo PLV-Z4 Service Manual

● Circuit Adjustment
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 perfor-
mance and product safety.
WARNING : USE UV RADIATION EYE AND SKIN PROTECTION
CAUTION: To prevent suffer of UV radiation, those adjustments
[Adjustment Condition]
● Input signal
Computer signal .................... 0.7Vp-p/75Ω terminated, 16 steps gray
Component Video signal........ 0.7Vp-p/75Ω terminated, 16 steps gray
Video signal .......................... 1.0Vp-p/75Ω terminated, 16 steps gray
● Image level selection................ "Powerful" mode unless otherwise noted.
Note:
* Please refer to "Service Adjustment Menu Operation" for entering to the
service mode and adjusting the service data.
z
Fan minimum voltage adjustment
Equipment
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
102 - 7 FN901
102 - 8 FN902
102 - 9 FN903
102 - 10 FN904/5
Note:
The location of each fan is refer to the parts list.
DURING SERVICING
must be completed within 25 minutes.
scale pattern, 1 line dot pattern, 100%
and 50% whole white pattern (720p for-
mat)
scale pattern (480i, 480p, 720p and
1080i format), 100% and 50% whole
white pattern (480p format)
scale pattern (NTSC composite video
signal)
Digital voltmeter
3.5
TPFAN1 ±0.05Vdc
3.5
TPFAN2 ±0.05Vdc
3.5
TPFAN3 ±0.05Vdc
3.5
TPFAN4 ±0.05Vdc
White 100%
x
Iris adjustment
Equipment
After replacing or repairing the LAMP IRIS, this re-
adjustment is needed.
1. Enter the service mode.
2. Select group/item no. "
0
value from " " to "
will be done.
3. After this adjustment, change this data value from
1 0
" " to " " for normal operation.
-55-
Electrical Adjustments
16 steps gray scale pattern
Black 100%
NIL
105 - 14
", and change data
1
", then automatic iris adjustment