Proton d 1200 Alignment
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Page 1
ALIGNMENT
IDLE CURRENT ALIGNMENT
1. Turn VR603, VR604 to fully counter clockwise position.
2. Remove the load from speaker terminals.
3. Push on POWER for 5 minutes ore-heating.
4. Connect DC millivolt-meter across R651 for left channel R652
for right channel. The meter sensitivity should be set at lOOmV
full scale deflection.
5. Adjust VR603 (left channel) and VR604 (right channel) till the
reading from meter is between 2.5mV and 5.0mV the alignment is
completed.
OFFSET ALIGNMENT
1. Remove the load from speaker terminals.
2. Push on POWER for 5 minntes pre-heating.
3. Connect a DC millvolt-meter to speaker terminals of each channel.
The meter sensitivity should be set at lOOmV full scale deflection.
The positive input of the meter should be connected to the red (+)
speaker terminal.
4. Adjust VR60l (left channel) and VR602 (right channel) till
the meter reading is zero. The alignments is completed.