Sharp Aquos LC-30HV4H, Service Manual

Page: 23 / 250

23
LC-30HV4M
LC-30HV4H
2 MAIN PAL Y
CONTRAST
adjustment Adjust pin (1) of P801 to 0.70 ±0.025 Vp-p.
3 MAIN PAL COLOR
GAIN adjustment Adjust pin (3) of P801 to
0.70 ±0.025 Vp-p.
4 MAIN PAL Cr GAIN
adjustment Adjust pin (5) of P801 to
0.70 ±0.025 Vp-p.
5 MAIN CONTRAST
adjustment Adjust the output (TP815) of IC810 to have 0.90±0.025
Vp-p from the pedestal level.
Press the DUAL screen button. Select the special DUAL screen settings for adjustment
(so that the same video source is reflected on MAIN/
SUB).
6 SUB PAL Y
CONTRAST
adjustment Adjust TB1274_SUB output (TP806) to
1.5 ±0.05 Vp-p.
0.70V
0.70V
(3) PAL signal adjustment
7 SUB PAL COLOR
GAIN adjustment Adjust TB1274_SUB output (TP805) to
1.5 ±0.05 Vp-p.
Adjustment items Adjustment conditions Adjustment procedures
1 Setup 1. Set colour system to PAL.
2. Select PAL source.
100% colour bar signal including 100% white, such
as split field colour bar.
INPUT1-Video
Pin (1) of P801
Pin (3) of P801
Pin (5) of P801
TB1274_SUB Output (TP806)
TB1274_SUB Output (TP805)
(4) SECAM signal adjustment
1 Setup 1. Set colour system to SECAM.
2. Select SECAM source.
100% colour bar signal including 100% white, such
as split field colour bar.
Adjustment items Adjustment conditions Adjustment procedures
2 MAIN SECAM Y
CONTRAST
adjustment Adjust the "MAIN SECAM Y CONTRAST" setting so
that the 100% white level at Pin (1) of P801 should be
0.7±0.025 Vp-p.
3 MAIN SECAM COLOR
GAIN adjustment Adjust "MAIN SECAM
COLOR GAIN" to 0.7 ±0.025
Vp-p at pin (3) of P801.
4 MAIN SECAM Cr
GAIN adjustment Adjust "GAIN MAIN SECOM
Cr " to 0.7 ±0.025 Vp-p at pin
(5) of P801.
0.7V
0.7V
INPUT1-Video
Pin (1) of P801
Pin (3) of P801
Pin (5) of P801
IC810 output (TP815)