No. 51782
AV-32220
29
SELF CHECK FUNCTIONS
1. Outline
This model has self check functions given below. When a malfunction has been detected, the POWER is turned off and the LED flashes to
inform of the failure . The malfunction is detected by the signal input state of the control line connected to the microcomputer.
2. Self check items
Check item
Details of detection
Method of detection
State of malfunction
Over-current protection
(HAZARD)
Operation of B1 protector
circuit.
The microcomputer detects at 1
second intervals.
If NG is detected for more than 1
ms, a malfunction is interpreted.
When a malfunction has been
detected, the POWER is turned
off. While the POWER is being
turned off , the power key of the
remote controller is not operational
until the power code is taken out
and put in again.
3. Self check indicating function
The self-check function begins detection about 5 seconds after
power is supplied.
In the event a malfunction is detected, the power is cut off
immediately.
At this time, the ON-TIMER LED flashes to inform of the
malfunction.
[ON-TIMER LED indication]
The ON-TIMER LED flashes at 0.5 seconds intervals.
POWER
Supplied
After about
5 seconds
Malfunction
is detected
POWER OFF
Flashing
ON-TIMER LED
Start of
detection