JVC LT-32WX84, Service Manual, Page: 42 / 130

1-42 (No.YA004)
COMPONENT
INPUT A-D
CONVERTER
GAIN Remote control
unit
Signal generator
[8.PP]
ADM010: (NO DISPLAY)
(G GAIN)
[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)
(1) Input 525i 100% all-white signal into a component
input terminal.
(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 < F44 > (Picture control) to "001" and < F45 >
(Picture control mode sw) to "000" to set Y ADJUST
MAX MODE.
(7) 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.
(8) Press the [MUTING] key to memoirze the set value.
(9) Select "8.PP" from the SERVICE MODE.
(10) Adjust < ADM010 > (G GAIN) to set the upper half
of the screen to maximum brightness. (Fig.3)
(11) Press the [MUTING] key to memoirze the set value.
(12) Check the black level. Perform the "BLACK LEVEL
Adjustment" again if the adjusted value is not
proper.
(13) Select "1.PICTURE/SOUND" from the SERVICE
MODE.
(14) Set < F44 > (Picture control) to "000" to cancel Y
ADJUST MAX MODE.
(15) Press the [MUTING] key to memoirze the set value.
(16) Input 1125i signal.
(17) Repeat steps (5) to (15) above.
Fig.3
Item
Measuring
instrument
Test point Adjustment part Description
090 Output level upon detection
220 Minimum value upon detection
220 Maximum value upon detection
F46
F47
F48
Item No. Setting value Adjustment item
Adjust this part to maximum brightness.