Sharp XV-Z1U Service Manual page 24

Step
Adjustment Position
Adjustment Conditions Adjustment Method
10 AGC
I. Receive the IO step gray
l
Using the Operation key switch A v, adjust level be-
scale signal of NTSC.
tween black and 100% white level.
2. Connect the oscillosope to
pin (3) of PI 501.
1.2 *O.OWp-p
3. Push S2001 and set the fol-
low DAC mode.
Group : VIDEO 5
Subject : AGCADJ
'i
_------_______________________________I
11 D/A Output level
I. Receive the 10 step gray l
Using the Operation key switch A v, adjust level be-
(NTSC) (DAC)
scale signal of NTSC.
tween black and 100% white level.
2. Connect the oscilloscope to
pin (5) of Pl501.
0.6 +-O.OSVp-p
3. Push S2001 and set the fol-
low DAC mode.
Group : VIDEO 5
Subject : DAV
12 D/A Output level
1. Receive the 10 step gray
l
Using the Operation key switch A v, adjust level be-
(PAL) (DAC)
scale signal of PAL.
tween black and 100% white level.
2. Connect the oscilloscope to
pin (5) of PI 501.
0.6 kO.O5Vp-p
3. Push S2001 and set the fol-
low DAC mode.
Group : VIDEO 1
Subject : DAVREF
13
Signal center
WC)
1. Receive the 10 step gray
0 Using the Operation key switch A v, adjust level be-
scale signal of NTSC. tween signal center and GND.
2. Connect the oscilloscope to
pin (2) of P4303. DC 7.0 1t0.lV
3. Push S2001 and set the fol-
low DAC mode.
Group : VIDEO 2
Subject : SIG CTR
Signal center
----________________--~~~--.--~
GND
24