(No.YA409)1-33
5.1.6 DETAILS
Self check is performed for the following items:
< Page 1 of screen >
< Page 2 of screen >
Detection item
Display
Detection content
Diagnosis
signal (line)
Detection timing
Low bias line short
protection
LOB
Detection of the low bias line(5V/9V/12V) short.
Q9821
,
Q9831
,
Q9861
[POWER PWB
]
LB_PRO
Detection starts 3 seconds after
the power is turned on. If error
continues between 1000ms the
power is turned off.
Fan lock
FAN
Not used
----
----
Audio
AUD
Not used
----
----
Devices on the ANALOG
PWB and the TUNER
PWB
ANA
Confirmation of reply of ACK signal which uses
I
2
C communication.
IC101
,
IC102
,
IC281
,
IC381
,
IC601
,
IC606
[ANALOG PWB]
IC061
,
TU001
[TUNER PWB]
SDA
If it checks whenever I
2
C
communication is performed and
no reply of ACK signal an error
will be counted.
Devices on the DIGITAL PWB DIG
Not used
----
----
Detection item
Display
Detection content
Diagnosis
signal (line)
Detection timing
Temp. sensor
TMP
Confirmation of the abnormal inner cabinet
temperature. (53
°
C)
IC2001
[THERMO PWB]
TXD
It will count if the serial
communication from a DD
MICOM is always supervised and
an error occurs.
Lamp does not light up
L1
Confirm that the lamp dose not light up.
CNBCT1
[DRIVE PWB]
TXD
It will count if the serial
communication from a DD
MICOM is always supervised and
an error occurs.
Lamp goes out
L2
Confirm that the lamp dose not goes out.
CNBCT1
[DRIVE PWB]
TXD
It will count if the serial
communication from a DD
MICOM is always supervised and
an error occurs.
Abnormal DD CPU
circuit
DDT
Confirmation of the serial communication error
between DRIVE PWB and DIGITAL PWB.
IC3701
[DRIVE PWB]
TXD
It will count if the serial
communication error is error
occurs.
Fan lock
FAN
Confirmation of the lock signals outputting the
operation(circuit) status of the cooling fan.
IC8005
[DRIVE PWB]
TXD
It will count if the serial
communication from a DD
MICOM is always supervised and
an error occurs.
Lamp cover open
LC
Confirmation of the interlock switch status for the
lamp cover.
S0861
[LAMP COVER SW PWB]
TXD
It will count if the serial
communication from a DD
MICOM is always supervised and
an error occurs.
Abnormal
of
optical
iris
IRS
Confirmation of the abnormal optical iris
operation.
IC5005
[IRIS PWB]
TXD
It will count if the serial
communication from a DD
MICOM is always supervised and
an error occurs.
