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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 will begin to check if interface among IC's are executed properly.
2) During diagnosis, the following displays are shown.
SELF CHECK
NO. 23
******
POWER
: 000
BUS LINE : OK
BUS CONT : OK
BLOCK
: MAIN
SET ID
: 03
E2P VER
: 02
OPT0 : 20H OPT1 : 84H OPT2 :01H
Part number of microprocessor (QA01)
Operation number of protection circuit (current limiter) . . . . "000" is normal.
BUS line check
"OK" ................... Normal
"SCL-GND" or "NG" .............. SCL-GND short circuit
"SDA-GND" or "NG" ............. SDA-GND short circuit
"SCL-SDA" or "NG" .............. SCL-SDA short circuit
BUS line ACK (acknowledge) check
"OK" ..................... Normal
Display of Location Number . . . . NG
(Display example)
"QA02 NG", "H001 NG", "Q501 NG" etc.
Note: The indication of failure place is only one place though failure places are plural. When repair
SYNC signal available/not available (available: green, not available: red)
SET ID
Version of E2P
OPT data
*
The item marked with
of a failure place finishes, the next failure place is indicated. (The order of priority of indica-
tion is left side.)
are not usable to display in the SELF DIAGNOSTIC FUNCTION for some model.
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