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8. SELF DIAGNOSTIC FUNCTION
1) Press "9" button on Remote Control during display of adjustment menu in the service mode,
The diagnosis wil! begin to check if interface among [C's are executed properly.
2) During diagnosis, the following displays are shown.
i"
Indicated color of mode now selected : Green and Red
«<SELF
CHECK>
Indicated color of other modes
: White
2390****
Green
: Normal
POWER
7
00
Red:
The microcomputer operates to provide judgement
BUS
LINE
: OK
of no video signal. The red color is still indicated
though the signal is input, failure may exist in input
signal line including QV01.
QV01 : In case of indication green ---Normal
In case of indication red with input signal----
Failure may exist in output line including QV01.
BUS
CONT
OK
BLOCK
@©OGO
@) Part number of microcomputer (QA01)
@ Operation number of protecting circuit ----"00" is nor-
mal,
When indication is other than "00", overcurrent apts to
flow, and circuit parts may possibly be damaged.
@ BUS LINE CHECK
----"OK" is normal.
"SDA1-GND"
SDA-GND short circuit.
"SCL1-GND"
SCL-GND short circuit.
"SCL1-SDA1"
SCL-SDA short circuit.
@ BUS CONT
----"OK" is normal.
When indication shows "Q OOO NG", the device with
the number may possibly be damaged.
@®BLOCK
:
U
* The items marked with lf are not usable to display in the SELF DIAGNOSTIC FUCTION for some model.
3SUPPLEMENT OF [@BUS CONT)
"OK"
wo. eee ee
Normal
=
Display of Location Number (Ex. QA0Q2)
...
NG
:
(Failure place to be displayed)
QA02 NG, Q501NG, HO01NG, GGO1NG, QVO1NG, G302NG, QZ01NG, HO02NG,
QQ01NG, HY01NG, QYO3NG, Qr04NG, QYO5NG, Q701NG QTOING
IN PIP UNIT
Note: The indication of failure place is onty one place though failure places are
plural. When repair of a failure place finishes, the next failure place is
indicated. (The order of priority of indication is left side.)
32
No.51281
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