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Pioneer SPEC-2 サービスマニュアル
6. ADJUSTING PROCEDURES
Since the same configuration is used for both left
and right channels of the SPEC-2 power amplifier
assembly, the following adjustments apply to both
channels.
6 . 1
1 )
2 )
I D L E C U R R E N T A D J U S T M E N T
Connect as shown in Fig. 12.
Set LEFT LEVEL and RIGHT LEVEL con-
trols on the front panel to minimum (fully
counter-clockwise).
Set POWER switch to ON. After
I or 2
minutes adjust VR1 to give an indication of
30mV on the voltmeter.
After the po\Mer has been ON for 30 minutes,
readjust VRl
for 30mV indication on the
voltmeter.
3 )
4 )
Power amplifier assembly
1 3
Fig. 12 Connection Diagram for ldle Current Adjustment