JVC AV-48WP55/H Service Manual And Parts List page 67

Indication Check item
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
[AV-65WP55]
SPRT
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.
Details of detection
Presence of synchronized signal.
HD : Component signal
M : NTSC main signal
S : NTSC sub signal
IC1301(AN15394A) : MI-COM & DIST
MODULE PWB
ACK is returned when I
carried out.
IC1703(MEMORY) : MI-COM & DIST
MODULE 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
RF tuner
Ditto
IC201(JCC5055) : MI-COM & DIST
MODULE PWB
Ditto
IC001(SiI9993) : DIGITAL INPUT
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.
2
C traffic is 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
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
----
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
(No.YA097)1-67
2
C