Onkyo TX-NR717 - Playback Operations

TX-NR717/818/ DTR-40.4/50.4
OPERATION CHECK-8
COOLING FAN
Circuit
FANCTRL
3
136
VOLH
THERMAL
Thermal sensor
135
Power amp.
COOLING FAN
Q6502,
Q6503
Fan drive
Q6380
VOLH
THERMAL
Q7022
MPU
(Main Microprocessor)
Normal/ Bi-Amp
Powerd Zone-2, 3
LOW
OFF OFFLOW MID LOW MIDHIGH HIGH
OFF
LOW
HIGH
MID
MID
LOW
LOW
STOP
LOWLOW
STOP STOP STOPSTOP STOP STOP
HIGH
LOW LOW LOW LOW LOW
MID MID MIDMID MID MIDMID
HIGH HIGH HIGH HIGHHIGHHIGH
THERMAL(Temparature of thermal sensor)
-30
55
60
55
65
65
75
95
100
Shut down
immediately
Shut down
immediately
Shut down in
10 minutes
continuously
HIGH
MID
LOW
OFF
Hysteresis control
VOLH(Voltage of VOLH port)
0.35V
0.4V
1.9V
2.0V
2.2V
2.3V 3.3V
HIGH
MID
LOW
OFF
Hysteresis control
Value D/A output of the MPU
OFF
LOW
MID
HIGH
0V
1.7V
2.2V
3.3V
Condition to operate
How to check
How to check Cooling Fan.
See 1-10 in ”OPERATION CHECK-2”.