C-13210
C-13211
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 itemDetails of detectionMethod of detectionState of malfunction
CRT NECK protectorWhen the vertical circuit S-The microcomputer detects at 1When a malfunction has been
Also detected if thecorrection capacitor C427second intervals.detected, the POWER is turned
power supply line outputis shorted, detect theIf NG is detected for more than 1off. While the POWER is being
from the HVT (Highpotential drop of the C427,ms, a malfunction is interpreted.turned off , the power key of the
voltage Transformer) hasand prevent the burnremote controller is not operational
shorted with the ground.damage to the CRT NECK.until the power code is taken out
(Grounding of shorting ofand put in again.
the power supply output
from the HVT to the vertical
circuit, and the small signal
power supply is also
detected.)
3. Self check indicating function
The self-check function begins detection about 5 seconds afterPOWERAfter aboutMalfunction
power is supplied.Supplied5 secondsis detected
In the event a malfunction is detected, the power is cut off
immediately.
Start of
At this time, the ON-TIMER LED flashes to inform of thePOWER OFFdetection
malfunction.
Flashing
ON-TIMER LED
[ON-TIMER LED indication]
The ON-TIMER LED flashes at 0.5 seconds intervals.
No. 5178323 |