Panasonic SA-PM53E Service Manual page 16

SA-PM53E / SA-PM53EB / SA-PM53EG
No.
4 [TAPE
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 [n] Key.
7 To clear all the abnormalities in the memory,
press the [n] Key for 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.
Operation Procedures
] Key is pressed, after loading in a
Micon operation & processing
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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