Electrical Adjustments - Sanyo PLV-Z2 Service Manual

■ Adjustment
Caution :
Other adjustment items are not related to service and a maintenance. Don't press the POINT (L) and (R) button
at the time of those adjustment items. Otherwise it may cause loss of 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 to the service mode and adjusting the ser-
vice data.

■ ELECTRICAL ADJUSTMENTS

1. Fan Minimum Voltage Adjustment
Equipment Digital voltmeter
Adjustment Value 3.5 ± 0.05 V-DC
Enter the Service mode.
Adjust values of below items by the POINT L or R button.
Item no. Fan Location
100 FN901
101 FN902
102 FN903
103 FN904/5
3. Reference Adjustment
Equipment Oscilloscope
Input mode Input 2 [RGB Analog]
Input Signal 16 step gray scale signal
Enter the Service mode.
Adjust the amplitude of part A to be below value for each
test point by the POINT L or R button.
Item no. Test Point
10 TP35R
11 TP35G
12 TP35B
A
scale, white 100% and white 50% pat-
tern (Composite video signal)
scale pattern (SVGA)
scale, white 100% and black 0% pattern
(480i format and 480p format)
noted.
Test Point
TPFAN1
TPFAN2
TPFAN3
TPFAN4
Adjustment value
10.0 ± 0.1 Vp-p
10.0 ± 0.1 Vp-p
10.0 ± 0.1 Vp-p
-26-
16 steps gray scale pattern
White 100%
2. Signal Center Adjustment
Equipment Digital voltmeter.
Input mode Input 2 [RGB Analog]
Input Signal 16 step gray scale signal
Enter the Service mode.
Adjust below values of each test points by the POINT L or
R button.
Item no. Test Point
1 TPV1R
2 TPV1G
3 TPV1B
4. Pedestal Adjustment (PC & Component)
Equipment Oscilloscope
Input Signal 16 step gray scale signal
4-1 Input mode Input 2 [RGB Analog]
4-2 Input mode Input 2 [Component: 480p]
Enter the Service mode.
Adjust the level of Black and pedestal to be same for each
test point by the POINT L or R button in each mode.
Item no. Test Point
203 TP35R
204 TP35G
205 TP35B
Pedestal Level = Black Level
Black 100%
Adjustment value
6.5 ± 0.05 V-DC.
6.5 ± 0.05 V-DC.
6.5 ± 0.05 V-DC.