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ALIGNMENT
Output of Power Amplifier
Current Alignment of Power
Section
Amplifier Section
STEP
CONNECT/ADJUST
REMARKS
step |AMMETER| CONNECT/ADJUST
[REMARKS
(TESTER)
1.
Remove Foo. and Foo. | Use
1.
| Connect load resistance (8
ee ene ee
to 16 ohms) to left (right)
2.
Turn VRgo3
and VRgox
| v .
channel SYSTEM-A
fully eaunterelociewise:
laa
Set to
Connect ammeter
100mA
where Fo92 was.
(Con-
3.
| Turn Power/Speakers
?
range.
nect (21) on schematic
| Swith to SYSTEM-A.
,
2
to minus
terminal
of
ammeter, other end to
4.
Adjust
VRgo:
(VRgo2)
so
plus terminal.)
that voltmeter
indicates
5
Adjust VRene (left chan-
0+50mA.
Repeat above
eels SO that Nee
procedure for right chan-
'nadicates O08 to Som A
nel (notations in parenthe-
ses are for right channel).
6.
Turn off Power/Speak-
|
ers Switch and replace
Foo2 :
7. | Set to
Turn
Power/Speakers
100mA
Switch to SPKR OFF,
range.
then connect ammeter
where Fo93 was.
(Con-
nect
(22)
on
circuit
schematic to minus ter-
minal
of
ammeter,
other end to plus ter-
minal.)
8 .
Adjust
VReos
(right
channel)
so that am-
meter indicates
28
to
32mA.
9.
Turn off Power/Speak-
ers Switch and replace
Foos.
2. | Connect voltmeter in par- | Set voltmeter to
allel with load resistance. | 0.5V~3V range.
>
VR801-
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