Advertisement
AUDIO
ALIGNMENT
ADJUSTING
IDLING
CURRENT
ADJUSTING WITH AMMETER
1. Connect DC ammeter to collector of power transistor X713 and +B.
2. Adjust R745 semi fixed volume so that ammeter reading is 20mA.
3. Repeat same procedure as all the other channels.
(08)+8
=
X704
X713
POWER
TRANSISTOR
LOAD
OPEN
DC
AM METER
——
(709) -B
Fig. 17
ADJUSTING WITH MILIVOLT
METER
1. Connect
DC
milivoltmeter
to both
end of emitter resistor
R735,
that is to connect milivoltmeter
to the Test
point of TAD-151
and speaker terminal correspponding to it.
2. Adjust R745 semi fixed volume so that milivoltmeter reading is 10mV.
3. Repeat same procedure as all the other channels.
TAD-151
DCMILIVOLT
METER
FRONT
LEFT
REAR LEFT
FRONT
RIGHT
// REAR RIGHT
Fig. 18
Note:
When you do it, set volume to minimum
and take loads away from speaker terminal.
4VR-5436X
—
10 —
Advertisement
