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5.1.6 DETAILS
Self check is performed for the following items:
< Page 1 of screen >
Detection item
Display
Low bias line short
LOB
protection
Fan lock
FAN
Audio
AUD
Devices on the ANALOG
ANA
PWB
Devices on the DIGITAL
DIG
PWB
< Page 2 of screen >
Detection item
Display
Temp. sensor
TMP
Lamp does not light up
L1
Lamp goes out
L2
Abnormal DD CPU
DDT
circuit
Fan lock
FAN
Lamp cover open
LC
Abnormal of optical iris
IRS
1-40 (No.YA337)
Detection content
Detection of the low bias line(5V/9V/12V) short.
Q9821, Q9831,
Q9861
[POWER PWB]
Not used
Not used
Confirmation of reply of ACK signal which uses
I2C communication.
IC101, IC102,
IC281, IC381, IC601, IC606,
IC061,
TU001
[ANALOG PWB]
Confirmation of reply of ACK signal which uses
I2C communication.
IC6401,
IC8831
[DIGITAL PWB]
Detection content
Confirmation of the abnormal inner cabinet
temperature. (53°C)
IC2001
[THERMO PWB]
Confirm that the lamp dose not light up.
CNBCT
[DRIVE PWB]
Confirm that the lamp dose not goes out.
CNBCT
[DRIVE PWB]
Confirmation of the serial communication error
between DRIVE PWB and DIGITAL PWB.
IC3701
[DRIVE PWB]
Confirmation of the lock signals outputting the
operation(circuit) status of the cooling fan.
IC8005
[DRIVE PWB]
Confirmation of the interlock switch status for the
lamp cover.
S0861
[LAMP COVER SW PWB]
Confirmation of the abnormal optical iris
operation.
IC5005
[IRIS PWB]
Diagnosis
Detection timing
signal (line)
LB_PRO
Detection starts 3 seconds after
the power is turned on. If error
continues between 200ms the
power is turned off.
----
----
SDA
If
it
checks
communication is performed and
no reply of ACK signal an error
will be counted.
SDA
If
it
checks
communication is performed and
no reply of ACK signal an error
will be counted.
Diagnosis
Detection timing
signal (line)
TXD
It
will
count
communication
MICOM is always supervised and
an error occurs.
TXD
It
will
count
communication
MICOM is always supervised and
an error occurs.
TXD
It
will
count
communication
MICOM is always supervised and
an error occurs.
TXD
It
will
count
communication error is error
occurs.
TXD
It
will
count
communication
MICOM is always supervised and
an error occurs.
TXD
It
will
count
communication
MICOM is always supervised and
an error occurs.
TXD
It
will
count
communication
MICOM is always supervised and
an error occurs.
----
----
whenever
I2C
whenever
I2C
if
the
serial
from
a
DD
if
the
serial
from
a
DD
if
the
serial
from
a
DD
if
the
serial
if
the
serial
from
a
DD
if
the
serial
from
a
DD
if
the
serial
from
a
DD
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