Panasonic SA-PM53E Service Manual page 17

No. Operation Procedures
1 C-mecha Abnormal Detection shall
be executed for DECK 1 only.
2
[
pressed, after loading in a
NORMAL type cassette with the
recording tab on the left side
removed.
3
[
key is pressed, after loading a
NORMAL, CrO2, METAL type
cassette with the recording tab on
the right side removed.
4
[TAPE
loading in a NORMAL, CrO2,
METAL type cassette ( cassette for
TPS checking purposes and with
both recording tabs intact ).
5 [REC] key is pressed, after loading
in a NORMAL type cassette ( with
both recording tabs intact )
6 Self-diagnostic mode is stopped by
pressing the [
7 To clear all the abnormalities in the
memory, press the [
more than 5 Sec while the self-
diagnostic mode is stopped.
8 To cancel the self-diagnostic mode
press the [POWER] Key.
- If RAM check error occurs during microcomputer reset, COLDSTART
shall be executed and all the error memory shall be cleared during RAM
initialization.
8.1.2. CD changer unit Reliability Test (Ageing Test Mode)
Below is the process flow chart of ageing for the CD changer unit.
] key is
]
] Key is pressed, after
] Key.
] Key for
Micon operation & processing
Check that all DECK mechanism leaf SW is in OFF state.
FF shall be executed for 2 sec, after which STOP. /
Check the following. / { F.REC INH SW } is OFF / { R.REC
INH SW } is ON / { HALF SW } is ON / Reel pulse toggles
between H & L.
REW shall be executed for 2 sec, after which STOP. /
Check the following. / { F.REC INH SW } is ON / { R.REC
INH SW } is OFF / { HALF SW } is ON / Reel pulse toggles
between H & L.
TPS operation is executed. Check the following. / { F.REC
INH SW } is ON / { R.REC INH SW } is ON / { HALF SW } is
ON / TPS signal changes. / After checking TPS, it shall
STOP. / If TPS checking is completed at TAPE END, it is
considered as TPS abnormal.
REC operation shall not be executed. / Check the
following. / { F.REC INH SW } is ON / { R.REC INH SW } is
ON / { HALF SW } is ON
LCD shall display the abnormality item code, when the
STOP key is pressed, it shall display the abnormality item
code in the following sequence. / [ T H 0 1 ] [ T H 0 2 ] [ T
H 0 3 ]
At this time, all the abnormalities item in the memory is
cleared and is displayed on the LCD.[ C L E A R ] display
for 1 Sec. then,[ T ] is displayed.
POWER is OFF.At the next POWER ON, normal operation
shall be executed.
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