Protection Circuit - Pioneer VSX-D711-K Service Manual

QQ
3 7 63 1515 0

7.1.3 PROTECTION CIRCUIT

1. DC abnormal detection
It processes more preferentially than overload detection.
When detected DC abnormal, A.MUTE* is on
and speaker relay is off, then flash
"AMP_ERR" on display.
An unusual state continues for 3 seconds.
A power supply is shut off.
The power key cannot be effective for 60 seconds
If the AC plug is pulled off within 60 sec, and then it is plugged in again, the unit will be reset for 60 sec.
TE
L 13942296513
2. Overload detection
When detected overload, A.MUTE* is on and
speaker relay is off, then flash
"OVERLOAD" on display.
An unusual state continues for 3 seconds.
A power supply is shut off.
www
.
http://www.xiaoyu163.com
↓
↓ continuation
↓
↓
↓ continuation
x ao u163
y
i
http://www.xiaoyu163.com
2 9
8
*A.MUTE : Audio Mute Command
A program is performed from the
Q Q
3 6 7 1 3 1 5
A power supply is shut off even if it
co
.
VSX-D711-K, VSX-D711-S
9 4 2 8
↓ return
beginning.
0 5 8 2 9 9 4 2 8
↓ return
returns.
m
9 9
9 9
67