AV-48WP74
AV-56WP74
(No.52105)1-65
Indication
Check item
Details of detection
Method of detection
XRAY
X-ray radiation protection
Operation of X-ray protection circuit.
D561, D562 : POWER & DEF PWB
At about 3 seconds after the power is turned
on, the self-check function starts. If NG is
detected for 200ms, the power is turned off
automatically.
OCP
B1 over-current protection
An B1 over-current is detected.
Q971 : POWER & DEF PWB
At about 3 seconds after the power is turned
on, the self-check function starts. If NG is
detected for 200ms, the power is turned off
automatically.
LOB
Low B short protection
Operation of low B short protection
circuit.
Q1961(5V), Q1962(9V) : MAIN PWB
At about 3 seconds after the power is turned
on, the self-check function starts. If NG is
detected for 200ms, the power is turned off
automatically.
TIM
Timer
The AC power frequency is changed
as follows :
50Hz ---> 60Hz
60Hz ---> 50Hz
Periodically check the power frequency by
counting the AC pulse and monitor whether or
not the frequency is changed except for the
time immediately after resetting.
SYNC
Presence or absence of
synchronized signal
Presence of synchronized signal.
HD : HD signal
M : NTSC main signal
S : NTSC sub signal
IC1301(AN5392) : MI-COM & DIST
MODULE PWB
When entering the self-check mode, "OK" is
shown.
While running the mode with picture signal, if
the synchronized signal is disappeared, "NG"
is shown.
MEM
Memory (EEP-ROM)
ACK is returned when I
2
C traffic is
carried out.
IC1703(MEMORY) : MI-COM & DIST
MODULE PWB
The state is monitored every time when I
2
C
traffic is carried out. Then the state is counted
as a failure if ACK is not returned.
AVSW
AV switch
Ditto
IC1301(AN15852A) and
IC1501(CXA2069Q) : MAIN PWB
Ditto
VCD
Video / chroma process
(RGB process)
Ditto
IC1301(AN5392) : MI-COM & DIST
MODULE PWB
Ditto
BS
Broadcast satellite tuner
Not used
Not used
AIO
Audio process
(MTS decode / audio control)
Ditto
UPC1851BCU
IC0201(CXA2134Q-X) : RECEIVER
PWB
Ditto
YC
3D YC separation
Ditto
IC3001(MN82832) : MI-COM & DIST
MODULE PWB
Ditto
TUN
RF tuner
Ditto
Main & sub RF tuner
Ditto
GCR
Ghost reduction
Not used
Not used
PP
Picture & Picture
(Multi-picture)
Ditto
IC101(TMS57128GJG) : MI-COM &
DIST MODULE PWB
Ditto
IP
DIST process
Ditto
IC201(JCC5054) : MI-COM & DIST
MODULE PWB
Ditto