Pioneer VSX-1015-S Service Manual page 112

1
Protection Process List
Item Detection Method
A
DC detection Detects when the DC_PROT port
becomes "L".
Overload Detects when the OL_DET port
detection becomes "L" (checks by interrupt).
Detects when the TEMP2 port
Thermal shut
becomes "H".
down
B
Detects when the FAN_STOP port
Fan stop
becomes "L".
• DC Detection circuit
C
R533
D519
D
E
F
112
1
2
Process Warning Indication
Turns muting on and speaker
Flashing "AMP ERR" for 3
relay off, then turns off the
seconds.
power after 3 seconds.
Turns muting on and speaker
relay off, and immediately None
turns off the power.
Turns muting on and speaker
relay off, then turns off the Flashing "OVERHEAT"
power after 3 seconds. for 3 seconds
Turns muting on and speaker
relay off, then turns off the Flashing "FAN STOP" for
power after 3 seconds. 3 seconds
VSX-1015-K
2
3
Remarks
If the power is turned off, flashes the MCACC
LED.
Do not accept the POWER key.
If the DC_DET port becomes "H" within 3
seconds, the unit resets automatically.
If the TEMP2 port becomes "L" within 3
seconds, the unit resets automatically.
After the power off, the key input is possible
once again.
If the FAN_DET port becomes "H" within 3
seconds, the unit resets automatically.
After the power off, the key input is possible
once again.
• Overload Detection circuit
C512
R534
D506 D507
C4051
R4052
3
4
4