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2.18
SUB PICTURE ADJUSTMENT
Adjustment procedure
(1) Observe P852 on the CPT P.W.B.
and change the SUB CONTRAST
(Item No. 55) of service mode by
using jig R/C and adjust so that the
amplitude of the sub-picture is the
same as that of the main-picture.
(2) Press "MUTE" key to write the data.
* Adjustment specification
* Quality control specification : ±3V
•
Wave form of P852 = Cathode
(Sub picture level compared with main picture level)
MAIN
PICTURE
1H
CATHODE WAVE FORM
* Perform this adjustment after the white balance
and sub-brightness adjustments of the main
picture are completed.
* White balance 14000K±0 MPCD
(Color coordinates: x=0.266 y=0.270)
: ±1V
WHITE( CATHODE
VOLTAGE)
2.19
TINT ADJUSTMENT
(
Only applicable for NTSC)
(1)
Preparation pre heatrun should be finished.
(2)
Input a window pattern signal like below to the
AV1 and AV2.
1/2H
(3)
Enter to split mode and display AV1 and AV2
(4)
Enter to service mode.
(5)
Observe "B" Cathode and adjust the INT
LEVEL and EXT LEVEL by 58 for main (right),
59 for sub (left).
Do not forget to press MUTE or ENTER to memorize.
INT Y = 0%
EXT Y = 0%
INT C = 100%
EXT C = 100%
1/2V
O
INT C = -90
o
EXT C = +90
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