VSX-831/1131
VSX-LX101/301
Appendix
5
4
3
2
1
6
D
C
A
B
D
C
A
B
5
4
3
2
1
6
Cooling Fan
E.g. (TX-RZ800)
Table of THERMAL and VOLH
THERMAL (Temperature of thermal sensor)
VOLH (Voltage of VOLH port)
Cooling fan
Thermal sensor
Q6980
Power
Amp.
Main
Microprocessor
Q7009
Fan driver
Q6960
Q6952
Q6953
Cooling
Fan
THERMAL
VOLH
FANCTRL
VOLH
OFF or
Headphone
LOW
MID
HIGH
THERMAL
OFF
STOP
STOP
STOP
STOP
LOW
LOW
LOW
LOW
LOW
MID
LOW
MID
MID
MID
HIGH
HIGH
HIGH
HIGH
HIGH
Shut down
immediately
OFF
LOW
MID
HIGH
FAN(V)
=OFF
FAN(V)
=LOW
FAN(V)
=MID
FAN(V)
=HIGH
-30
℃
45
℃
50
℃
52
℃
55
℃
63
℃
65
℃
0V
0.35V 0.4V
1.9V 2.0V
2.2V
2.3V
3.3V
Hysteresis control
Hysteresis control
How to check cooling fan
Step1
: Set VOL Level = -42
Step2
: Confirm fan that is not rotating.
Step3
: Set the following test mode and confirm fan that is rotating at low speed.
TEST 1-08 :
[RETURN] + [ON/STANDBY]
→
[SURROUND]
→
[TUNE DOWN] x 3
Step4
: Set the following test mode and confirm fan that is rotating at high speed.
TEST 1-07 :
[RETURN] + [ON/STANDBY]
→
[SURROUND]
→
[TUNE DOWN] x 4
※
Note: Do not connect speaker during this check.
Amplifier power supply
H :High voltage
M :Mid voltage
L :Low voltage
Condition of cooling fan
x :Stop
L :Low speed
M :Mid speed
H :High speed
Temperature of thermal sensor (℃)
Level of VOLH
How to display Output Sensor & Temperature Sensor
[List-A (
※
)] + [ON/STANDBY] x 2
→
[List-C (
※
)]
0 0 1
0 4 2
o F : x
S : H
OFF
0V
LOW
2.0V
MID
2.7V
HIGH
3.3V
※
: Refer to
