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GX-N5E
|
Measuring
instrument
a
Test point and Adjustment part
Description
" 1 . ADJUSTING THE SSG (SYNC SIGNAL GENERATOR)
a
1 | fsc
Adjustment
Frequency
counter
Pin 27 of 1C441 or equalize point
Turn the SC FREQ trimmer C457
to obtain a
frequency
counter reading of 4.433619MHz
+ 7Hz.
(Note)
1. Take care not to short-circuit any of
the IC terminals.
2. Reconfirm
this
adjustment
after
reattaching the shield case.
—t
2 |i
DC Voltmeter
Adjustment
Turn
the
core
of
the
SUB
OSC.
FREQ.
transformer
T441
to obtain
a DC
voltmeter
reading of 4.5V (792 V).
PRESETTING (A)
¢
Y.SET UP
Bl comacton
DSNTEC)
Dcomacrori]
Encoper
"Pc
WHT. CLIP
24
CHROMA
LIMITER
If on picture is obtained, preset the following
VRs as indicated.
R207 (AGC-BAL 1) — Turn fully clockwise.
R222 (Y GAIN)
— Turn fully counterclock-
wise and back off slightly.
— Turn fully counterclock-
wise.
— Mechanical center.
R265 (Y KNEE)
R472
(CHROMA LIMIT)
R488 (WHITE CLIP) — Turn fully clockwise.
R489 (Y SETUP)
— Mechanical center
R266 (Yy OFF SET) — Turn fully counterclock-
wise and back off slightly.
If a picutre is already obtained o'r fine adjust-
ment
is to be made
later, presetting
is not
necessary.
10E (No. 5391B)
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