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SELF CHECK FUNCTIONS
1. Outline
This model has self check functions given below. When an abnormality has been detected, the SUB POWER is turned OFF and the LED
flashes to inform of the failure. An abnormality is detected by the signal input state of the control line connected to the microcomputer.
2. Self check items
Check item
Over-current protection
CRT NECK protection
3. Self check indicating function
At about 3 seconds after the power is turned ON, the self-check
function starts.
In case where an abnormality has been detected, the OFF
TIMER LED flashes, and the SUB-POWER is turned OFF.
[ Indication by LED ]
Item
Over-current protection
CRT NECK protection
Details of detection
An over-current on the LOW-B
line is detected.
Operation of Vertical deflection
circuit.
LED flashing intervals
Turning on and off (0.24-second) intervals
No. 51669
Method of detection
The
main
microcomputer
detects the possible abnormality
at 20-msec. intervals and judges
the results in every 24 time. Of
the 24 times, if NG is detected
more than 13 times, it is judged
that there is an abnormality
DITTO
After about
3 seconds
Start of
Power on
detection
Detection of an
abnormality
AV-A14M3
AV-A14T3
AV-A14AU3
AV-1413EE
State of abnormality
When an abnormality has been
detected, the SUB-POWER is
turned off. While the SUB-
POWER is being turned off, the
power
key
of
the
remote
controller is not operational until
the power plug is taken out and
put in again.
DITTO
Flashing LED
SUB POWER OFF
29
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