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Indication
Check item
TIM
Timer
SYNC
Presence or absence of
synchronized signal
MEM
Memory (EEP-ROM)
AVSW
AV switch
VCD
Video process
(RGB process)
AIO
Audio process
(MTS decode / audio control)
YC
3D YC separation
TUN
RF tuner
DET
DIST process
HDMI
Digital input process
SPRT
Split protection
5.1.4 SELF-CHECK DISPLAY LED
The self-check results are shown on the following LED display.
Method of indication when the raster is not displayed.
Each failure is shown by turning POWER LED on and off at
specified intervals.
• For X-ray radiation protection, B1 over-current protection, low
B short protection and CRT neck broken protection, the power
of the TV is turned off if NG is detected. Immediately after the
power is turned off, POWER LED will be turning on and off.
When the power is turned off, you cannot turn the power on
again until the AC plug is taken out and put in again.
1-60 (No.YA173)
Details of detection
The AC power frequency is changed as
follows :
50Hz → 60Hz
60Hz → 50Hz
IC1701(MICOM) 17pin: MI-COM &
DIST MODULE PWB
Presence of synchronized signal.
HD : Component signal
M : NTSC main signal
S : NTSC sub signal
IC1301(AN15394A) : MI-COM & DIST
MODULE PWB
2
ACK is returned when I
C traffic is
carried out.
IC1703(MEMORY) : MAIN PWB
Ditto
IC1301(AN15852A) and
IC1501(CXA2069Q) : MAIN PWB
Ditto
IC1301(AN15394A) : MI-COM & DIST
MODULE PWB
Ditto
IC1502(M62320) : MAIN PWB
Ditto
IC3001(MN82832) : MI-COM & DIST
MODULE PWB
Ditto
TU1101 : MAIN PWB
Ditto
IC1001(JCC5055) : MI-COM &DIST
MODULE PWB
Ditto
IC001(SII9993) : DIGITAL INPUT
MODULE PWB
----
X-ray radiation
protection
B1 over-current
protection
Low B short protection Turning on and off 2-second intervals
CRT neck broken
protection
Method of detection
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.
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.
The state is monitored every time when I
traffic is carried out. Then the state is counted
as a failure if ACK is not returned.
Ditto
Ditto
Ditto
Ditto
Ditto
Ditto
Ditto
Item
POWER LED ON / OFF intervals
Turning on and off 0.1-second intervals
Turning on and off 1-second intervals
Turning on and off 3-second intervals
2
C
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