Sony D-555 - Battery Display Adjustment; +6 V Adjustment

| D-555/Z555
Battery
Display
Adjustment
+6
V
Adjustment
Adjustment
Procedure:
VOM
Adjustment
Procedure:
VOM
(de
range)
(de
range)
main
board
P|
main
board
|
|
+
TP
(VREF)
0-1.
IP
196
Vi9w———
6
10802 (3) O=--/
1.
Put
the
set
into
service
mode
(see
page
5).
2.
Connect
the
VOM
to
main
board
TP
(+6
V).
3.
Adjust
RV401
for
+6+0.1
V
reading
on
the
VOM.
1.
Apply
dc
+3.5
V
to
terminals
for
bult
in
battery
(BP-2).
2.
Insert
the
disc
(YEDS-18)
and
put
the
set
into
play mode.
3.
Adjust
RV801
so
that
main
board
IC802
(i)
voltage
and
TP
(VREF)
voltage
are
equal.
4. If 1C802 a) voltage is heigher than TP (VREF)
voltage when turning the RV801 fully counter-
clockwise, short the jumper point (A) as shown
below and adjust RV801.
Adjustment Location: main board
4.
After
adjustment,
release
service
mode
(see
page
5).
Adjustment Location: main board
battery
terminals
TP(+6V)
TP
(VREF)
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