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(C) PAL Line-Crawling Adjustment
1.
Input the PAL SP color bar signal.
2. Connectanoscilloscopeto'TPISBla:Y.
3. Adjust the CPI inductor until the flagging of the waveform as
shown is minimized. Do not touch other adjustment control at
thistime.
(D) Tracking Adjustment Between Phase and Line-CJ:"awling
After the item (C) is adjusted, ch~k that the adj!J,'l:tment value
of items (A) and (B) have not changed.
If
they have changed,
repeat steps (A), (B) and (C).
~P,norrn,dj,slm'"t
~~
-~-
3. PAL Color Level AdJusbnent
Connoct the input signal to the LINE A connector.
(A) PAL Color
J. Input the PAL 100% color bar signal.
2. Observe TPI l
&Y
and TP12
1!.:Y
using an oscilloscope
to
findoutwhichhasthesignalofsrnalleramplitude.
3. Enter the service mode (item No. 130)
4. Adjust the£AL....CQLQR until the signal having the smaller
amplitude wiII have .1W.QQmY amplitude.
5.
Writethedata.
TP11 A-Y
Make adjustment to obtain
min (Vr. Vb)"' IV±lOOmV
TP12B-Y
PVM-20M7MDE
(B) PALR-Y.DAl
1.
Input the PAL 100% color bar signal.
2. Connect an oscilloscope to TP16
BL.B.:X-
3. Enter the setv:ice mode (item No. 133)
4. Adjust
the~
until
the signal has amplitude
of
2V:t50mVp-p.
5.~.
----i-
2V,1,5QmVp-p
-·---
--
R-Y
(C}
PAL Y. DAl
I.
Input
the
PAL
1(1()%
color bar signal.
2. Connect an oscilloscope to TP 14
fil,
3. Enter the service mode (item No. 134)
4.
Adjust
the
£AH...D.A1
until
the
signal-has amplitude
of
2V%.50mVp-p.
5.
Writethedata.
2V,1,50mVp-p
J~J::
R-Y
(D) PAL B-Y.DAl
1. Input the PAL 100 % color bar signal.
2.
ConnectanoscilloscopetoTPl5!!l!i:.Y.
3. Enter the service mode (item No. 135)
4. Adjust the~
until the
signal has
amplitude
of
2V±50mVp-p.
5. Writethedata.
2V,1,50mVp-p
~---__!_
B-Y
-37-
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