Sharp LC-22SV6U Service Manual page 16

LC-22SV6U
(4) TAMP adjustment
a) Receive the standard color bar signal. Or using a signal generator, have the pattern, as shown in Fig. B,
displayed.
White
75%
Fig. A Half-color bar signal with white 75% at top left
b) See if the reading of "Y" on Adjust Process Page 1 is as specified. If not, adjust the "NTSC TAMP" setting
on the same page to get the "Y" value somewhere between "160" and "168".
1
INCH SIZE
MODEL
ERROR NO RESET
1 BIT AMP ERR
PUBLIC MODE
COM BIAS 60
COM BIAS 50
NTSC TAMP
PAL-M TAMP
PAL-N TAMP
TAMP L
Y
TAMP H
Fig. C Page 1 of adjustment process menu
c) If the "NTSC TAMP" setting has been readjusted, write the final value to the "PAL-M TAMP" and "PAL-N
TAMP" items.
WLD24 VER 1.00
22
SV6U
0
0
OFF
100
100
20
20
20
160
127
168
16
White 75%
Fig. B TAMP adjustment pattern (NTSC γ=1.00)