Sharp XV-Z1A Service Manual page 22

XV-Z1E/A
Step
Adjustment Position
6 Reference black
Level
7 Contrast
(DAC)
8 Contrast of
component
mode
(DAC)
9 Bright of
component
mode
(DAC)
Adjustment Conditions
1. Receive the 10 step gray
scale signal. (NTSC or PAL)
2. Connect the oscilloscope to
pin (3) of P1501.
3. Group : VIDEO 5
Subject : T-BRT
1. Receive the 10 step gray
scale signal of NTSC.
2. Connect the oscilloscope to
pin (3) of P1501.
3. Push S2001 and set the fol-
low DAC mode.
Group : VIDEO 1
Subject : SUB-R 0
SUB-G 0
SUB-B 0
setting.
4. Group : VIDEO 1
Subject : CONT
1. Receive the 10 step gray
scale signal of NTSC.
2. Connect the oscilloscope to
pin (3) of P1501.
3. Push S2001 and set the fol-
low DAC mode.
Group : VIDEO 5
Subject : C-CONT
1. Receive the 10 step gray
scale signal of NTSC.
2. Connect the oscilloscope to
pin (3) of P1501.
3. Push S2001 and set the fol-
low DAC mode.
Group : VIDEO 5
Subject : C-BRIGHT
Adjustment Method
» Using the Operation key switch
level as same as pedestal level.
Black
Pedestal
» Using the Operation key switch
tween black level and 100% white level.
1.60 ±0.05Vp-p
» Using the Operation key switch
tween black level and 100% white level.
1.55 ±0.05Vp-p
» Using the Operation key swsitch
level as same as clamp level.
22
' " , adjust the black
' " , adjust level be-
' " , adjust level be-
' " , adjust the black