Pioneer VSX-D514-S Service Manual page 73

5
3. Board detection
If the board connection from MAIN ASSY to AM & PRIMARY ASSY is interrupted,
the BOARD_DET port becomes "H".
If the "H" is detected, the microprocessor will perform as following flow chart.
In the case of simultaneous detection with the overload protection circuit,
Board detection is performed preferentially to DC-abnormality detection and Overload detection.
When an boad error is detected, A.MUTE* is turned on,
speaker relay is turned off, then
"BOAD ERR" flashes on the display.
The abnormality continues for 3 seconds.
The power is shut off.
5
6
↓
↓ Continues.
VSX-D514-K
6
7
↓ Recovery
The power is shut off even if the
unit recovers.
7
8
A
B
C
D
E
F
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