Sony FD-40E - Page 10

SECTION 5
ADJUSTMENTS
NOTE
1.
Test Equipment Required
@ regulated de power supply
® color-bar/pattern generator -
© frequency counter
@ digital voltmeter
. Input Signal
cross hatch, color-bar or off-air signal.
.
The
adjustment
should
be
performed
with
6
V
dc
unless otherwise noted.
Centering Adjustment
1. Tune in an off-air signal.
2. Adjust the centering magnet so that the picture is
at the-center.
Z BOARD ADJUSTMENT
1. Connect a 10uF 6.3 V tantalum capacitor in
IC911 pin @) and ground.
2. Connect the frequency counter to IC911 pin ©.
. Horizontal Adjustment
1. Loosen the adjustment screw,
2.
Tune
in
an
off-air
signal
aid
adjust
deflection
yoke
for
optimum
picture.
3. Tighten the screw after the adjustment.
Open Solder bridge.
frequency counter
3. Adjust RV910 for 31.15—31.35 kHz reading on
frequency counter.
4, After the adjustment, remove the capacitor in
step 1.