Adjustment; Idling Current Alignment - Marantz PM6005 Service Manual

ADJUSTMENT

IDLING CURRENT ALIGNMENT

Adjusting Procedure
Set the power voltage to rated voltage for this adjustment.
(1) Adjust the Idling Current with the variable resistor V6001 and V6002 on the PWB CUP12578Z.
(2) Turn off the power.
(3) "+" of Connect Digital Voltage is connected to the No. 1 pin and connected "-" to No. 3 pin of N6003.
(4) "+" of Connect Digital Voltage is connected to the No. 1 pin and connected "-" to No. 3 pin of N6004.
(5) Before turning on the power, V6001 and V6002 have been counter clockwise turned with the adjustment driver.
(6) Turn on the power, VOLUME is set as ( c min.).
(7) After 2 minutes.
With seeing the digital voltage meter turn the variable resister clockwise slowly to adjust the idling current.
Idling adjustment with V6001 (V6002).
•Turn V6001 (V6002) clockwise to increase the idling current.
•The adjustment value of idling current is 10 mV(22.5 mA) ± 0.5 mV(1.1 mA) each.
(8) After 6 minutes.
Repeat the same procedure as 7.
•The adjustment value of idling current is 20 mV(45 mA) ± 0.5 mV(1.1 mA) each.
Adjustment is completed.
(9) Remove connection cable, attach the top cover.
NOTE : Idling current decreases with the temperature rise inside the unit, and it is set to 20 mV (45 mA) of setting value in
about 30 minutes after turn on the power.
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