(No.YA098) 1-49
Fan lock
Abnormal of
operation of PDP
(PANEL)
Abnormal rise of
temperature in PDP
(PANEL)
Abnormal rise of
temperature in
AUDIO PWB
Short circuit detection
of AUDIO PWB
Panel communication
Sub memory
Temp. sensor
Audio control
FAN
ALM
TMP
ATP
ASH
PNL
MEM
TMP
AIO
---
SDA
SDA
AMP_PRO1
---
SDA
SDA
SDA
SDA
Not used.
Confirm the operation of the panel
protection.
[PDP UNIT]
It detects whether the temperature in
a display unit is normal.
IC8101 [TEMP. SENSOR PWB]
It detects whether the temperature in
a AUDIO PWB is normal.
TH6401 [AUDIO PWB]
Not used.
It confirm whether panel
communication is normal.
[PDP UNIT]
Confirmation of reply of ACK signal
which uses I
2
C communication.
IC805 [INTERFACE PWB]
Same as above.
IC8101 [TEMP. SENSOR PWB]
Same as above.
IC6521 [AUDIO PWB]
Not used.
Detection starts 8 seconds after the power is
turned on.
Detection is performed every 16ms.
If errors continues between 300ms, the power
is turned off.
Detection starts 8 seconds after the power is
turned on.
Detection is performed every 0.5 seconds.
If a temperature rises beyond the temperature
of 71° C for detection of error over the
predetermined 120 times, the power is turned
off.
Detection starts 5 seconds after the LOB is
turned on.
Detection is performed every 1 seconds.
If the temperature of 110°C is detected for 10
seconds or more, the power is turned off.
Not used.
If it checks whenever I
2
C communication is
performed, and no reply of ACK signal, an error
will be counted.
If it checks whenever I
2
C communication is
performed, and no reply of ACK signal, an error
will be counted.
Same as above.
Same as above.
< 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.
Type of error
Item name
POWER LED flash cycle
Low bias line short
LOB
Low luminance blue Flash 1.0 second / Low luminance blue Out 1.0 seconds
Abnormal of operation of PDP (PANEL)
ALM
High luminance blue Flash 1.0 second / High luminance blue Out 1.0 seconds
Abnormal rise of temperature in PDP (PANEL)
TMP
High luminance blue Flash 2.0 second / High luminance blue Out 2.0 seconds
Abnormal rise of temperature in AUDIO PWB
ATP
High luminance blue Flash 0.1 second / Low luminance blue Out 0.1 seconds
Detection item
Item
name
Detection
signal (line)
Detection timing
Detection content