VSX-D712-K
86
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7.3.4 AMPLIFIER SYSTEM PROTECTION OPERATION SPECIFICATION
1. DC-abnormality detection
In the case of simultaneous detection with the overload protection circuit,
DC-abnormality detection is performed preferentially to overload detection.
In the case of simultaneous detection with the overload protection circuit,
Board detection is performed preferentially to DC-abnormality detection and Overload detection.
*
A.MUTE : Audio mute command
↓
The abnormality continues for 3 seconds.
↓
Continues.
↓
Recovery
The power is shut off.
The program restarts.
↓
The power key is disabled and Standby LED blinks.
But be switched on with the following methods.
1
TESTMODE ON (A55F+A55F)
2
When power off, push FRONT ENTER key + ADVANCED SURROUND key continuously 2sec.
(
2
: When a DC abnormality is detected and the power is shut off.)
2. Overload detection
↓
The abnormality continues for 3 seconds.
↓
Continues.
↓
Recovery
The power is shut off.
The power is shut off even if the
unit recovers.
When a DC abnormality is detected, A.MUTE
*
is turned
on, speaker relay is turned off, then
"AMP_ERR" flashes on the display.
When an overload is detected, A.MUTE
*
is turned on,
speaker relay is turned off, then
"OVERLOAD" flashes on the display.
3. Board detection
↓
The abnormality continues for 3 seconds.
↓
Continues.
↓
Recovery
The power is shut off.
The power is shut off even if the
unit recovers.
When an boad error is detected, A.MUTE
*
is turned on,
speaker relay is turned off, then
"BOAD ERR" flashes on the display.
Summary of Contents for VSX-D712-K
Page 16: ...VSX D712 K 16 1 2 3 4 1 2 3 4 C D F A B E 3 3 MAIN ASSY 1 3 A A 1 3 CN901 Q CN804 F A3 3 A3 3 ...
Page 19: ...VSX D712 K 19 5 6 7 8 5 6 7 8 C D F A B E A 2 3 A3 3 A3 3 CN254 G ...
Page 24: ...VSX D712 K 24 1 2 3 4 1 2 3 4 C D F A B E 3 7 DSP ASSY 2 2 A B 2 2 A3 3 CN112 NO USE ...
Page 35: ...VSX D712 K 35 5 6 7 8 5 6 7 8 C D F A B E U U U CN392 K COMPONENT ASSY XWZ3661 ...
