Circuit Adjustment - Sanyo PLV-Z2000 Service Manual

Electrical Adjustments
● 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.
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........................ "Dynamic" mode unless otherwise noted.
Note:
* Please refer to "Service Adjustment Menu Operation" for entering to the
service mode and adjusting the service data.
1. 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
250 - 8 FN901
250 - 9
FN902
250 - 10 FN903
250 - 11 FN904
GND TE6601
Note:
The location of each fan is refer to the parts list.
FN905 is non adjustment.
DURING SERVICING
must be completed within 25 minutes.
scale pattern, 1 line dot pattern, 100% and
50% whole white pattern (720p format)
scale pattern (480i, 480p, 720p and 1080i
format), 100% and 50% whole white pat-
tern (480p format)
scale pattern (NTSC composite video sig-
nal)
Digital voltmeter
Test Point Adjustment value
3.5
TPFAN1 ±0.05Vdc
3.5
TPFAN2 ±0.05Vdc
3.5
TPFAN3 ±0.05Vdc
3.5
TPFAN4 ±0.05Vdc
White 100%
2. Fan max voltage adjustment
Equipment
100%
1. Enter the service mode.
2. Change data values of each test points to adjust the fan
minimum output voltage.
Item no. Fan Location
250 - 12 FN901
250 - 13 FN902
250 - 14 FN903
250 - 15 FN904
GND TE6601
Note:
The location of each fan is refer to the parts list.
FN905 is non adjustment.
-56-
16 steps gray scale pattern
Black 100%
Digital voltmeter
Test Point Adjustment value
13.8
TPFAN1 ±0.05Vdc
13.8
TPFAN2 ±0.05Vdc
13.8
TPFAN3 ±0.05Vdc
13.8
TPFAN4 ±0.05Vdc
100%