Marantz SR9600 - Power Amplifier Adjustment; Idling Current Alignment

10
3. POWER AMPLIFIER ADJUSTMENT
Idling Current Alignment
1. Each of the measurement points are provided with the
two test points. Set a digital Voltage meter to DC voltage
input. Connect the meter to the test points at both
contact points.
2. After the setup above, turn on the main switch.
3. Adjust variable resistors (R123, R223…R423) according
to the digital voltmeter readings. The target setting value
is the following table for each channel.
Settings: Mode —7.1ch Auto
Master Volume — Minimum
Speaker out — No Load
Top lid — OPEN
Time Table of Idling Current Rise
Ambient temperature 20 to 30 degrees centigrade
The above table is actual survey of Idling Current versus
TIME of this unit.
As for the adjustment, Idling Current becomes 15.0mA in
stable state (it passes more than 30 minutes).
Power Channel (PWB) Alignment Point Measurement Point
Power ON after
Front L (P114) R123 J132
Front R (P114) R223 J232
Center (P214) R373 J382
Surround L (P114) R323 J332
Surround R (P114) R423 J432
Surround Back L (P214) R273 J282
Surround Back R (P214) R173 J182
After Turning ON Measurement Voltage (Jxxx) Idling Current
10 min. 1.59mV 15.9mA
15 min. 1.58mV 15.8mA
20 min. 1.51mV 15.1mA
25 min. 1.51mV 15.1mA
30 min. 1.50mV 15.0mA
40 min. 1.50mV 15.0mA
Idling Current Alignment
1.
ӲȁȣȳȍȫƴᛦૢဇȆǹȈȝǤȳȈƕဇƞǕƯƍLJ
ƢŵȆǹȈȝǤȳȈƴȇǸǿȫȞȫȁȡȸǿȸƳƲƷႺ්
ᩓןᚘǛዓƠLJƢŵ
2.
ɥᚡᚨܭࢸŴஜೞƷᩓเǛλǕLJƢŵ
3.
Ⴚ්ᩓןᚘƷǛᙸƳƕǒᛦૢဇƷ৽৴
(R123, R223…
R423)
ǛׅƠLJƢŵӲȁȣȳȍȫƕɦᚡᛦૢƴƳǔǑƏ
ᛦૢƠLJƢŵ
Settings: Mode — 7.1ch Auto
Master Volume — Minimum
Speaker out — No Load
Top lid — OPEN
ǢǤȉȪȳǰᩓ්ɥଞᘙ
ǢǤȉȪȳǰᩓ්ɥଞᘙ
ԗ׊ภࡇ
20
᳸
30°C
ɥƷᘙƸŴஜೞƷ଺᧓ݣǢǤȉȪȳǰᩓ්ǛܱยƠƨᘙưƢŵ
ܤܭƠƨཞ
(30 Ўˌɥኺᢅ )
ưƸŴǢǤȉȪȳǰᩓ්ƕ
15.0mA
ƴƳǔಮƴᛦૢƠLJƢŵ