JVC PD-42WX84SJ Service Manual page 51

Mesuring
Item
instrument
NTSC Remote control
CONTRAST unit
Signal generator
Item No. Setting value
F46 090
165
F47
165
F48
Adjust this portion to white
Test point Adjustment part
[2. YC SEP]
YCM132: (NO DISPLAY)
(CONTRAST)
[1. PICTURE/SOUND]
S13: RDRV (R DRIVE)
S15: GDRV (G DRIVE)
S17: BDRV (B DRIVE)
S19: CUTR (R CUTOFF)
S21: CUTG (G CUTOFF)
S23: CUTB (B CUTOFF)
F44: (NO DISPLAY)
(Picture control)
F45: (NO DISPLAY)
(Picture control mode sw)
F46: OUT LV.
(Output level upon
detection)
F47: LMT BTM
(Minimum value upon
detection)
F48: LMT TOP
(Maximum value upon
detection)
Adjustment item
Output level upon detection
Minimum value upon detection
Maximum value upon detection
Fig.6
Description
(1) Input NTSC composite all-white signal.
(2) Set "VIDEO STATUS" to STANDARD.
(3) Set "ASPECT" to FULL.
(4) Select "COLOR TEMPERATURE" to LOW.
(5) Select "1.PICTURE/SOUND" from the SERVICE
MODE.
(6) Set < S13 > (R DRIVE), < S15 > (G DRIVE) and
< S17 > (B DRIVE) to "255".
(7) Set < S19 > (R CUTOFF), < S21 > (G CUTOFF) and
< S23 > (B CUTOFF) to "128".
(8) Set < F44 > (Picture control) to "001" and < F45 >
(Picture control mode sw) to "000" to set Y ADJUST
MAX MODE.
(9) Set < F46 > (Output level upon detection), < F47 >
(Minimum value upon detection) and < F48 >
(Maximum value upon detection) to values as
shown in the left table.
(10) Press the [MUTING] key to memorize the set
values.
(11) Select "2. YC SEP" from the SERVICE MODE.
(12) Adjust < YCM132 > (CONTRAST) to set the white
portion on the lower half of the screen to white color.
(Fig.6)
(13) Press the [MUTING] key to memorize the set
values.
(14) Select "1.PICTURE/SOUND" from the SERVICE
MODE.
(15) Set < F44 > (Picture control) to "000" to cancel Y
ADJUST MAX MODE.
(16) Press the [MUTING] key to memorize the set
values.
(No.52169)1-51