(No.YA299)1-27
< Page 2 of screen >
5.1.7 METHOD OF DISPLAY WHEN A RASTER IS NOT OUTPUT
In the state where a raster is not output by breakdown of the set, an error is displayed by blink of the POWER LED.
< Explanation of operation >
If error is detected, the power is turned off.
Shortly after a power is turned off, POWER LED will be blinked.
Power cannot be turned on until the power cord takes out and inserts, after a power is turned off.
Detection item
Display
Detection content
Diagnosis
signal (line)
Detection timing
Fan lock
FAN
Not used.
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Abnormal of operation of
PANEL
ALM
Not used.
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Abnormal rise of
temperature in PANEL
TMP
Not used.
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Abnormal rise of
temperature in audio
circuit
ATP
Not used.
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Short circuit detection of
audio circuit
ASH
Not used.
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Panel communication
PNL
Not used.
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Sub memory
MEM
Not used.
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Temp. sensor
TMP
Not used.
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Audio control
AIO
Confirmation of reply of ACK signal
which uses I
2
C communication.
IC6521
[ANALOG SIGNAL PWB]
SDA
If it checks whenever I
2
C communication
is performed and no reply of ACK signal
an error will be counted.
Type of error
POWER LED flash cycle
Low bias line short protection
Green turnig on and off at 1 second intervals.
Abnormal rise of temperature in audio circuit
Green turnig on and off at 0.1 second intervals.
