Panasonic SA-PM3E, Service Manual

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No. Operation Procedures Micon operation & processing
1 C-mecha Abnormal Detection shall
be executed for DECK. Check that all DECK mechanism leaf SW is in OFF state.
2
[ ] key is
pressed, after loading in a
NORMAL type cassette with the
recording tab on the left side
removed.
FF shall be executed for 2 sec, after which STOP. /
Check the following. / { F.REC INH SW } is OFF / { HALF
SW } is ON / Reel pulse toggles between H & L.
3
[ ]
key is pressed, after loading a
NORMAL, CrO2, METAL type
cassette with the recording tab on
the right side removed.
REW shall be executed for 2 sec, after which STOP. /
Check the following. / { F.REC INH SW } is ON / { HALF
SW } is ON / Reel pulse toggles between H & L.
4
[TAPE ] Key is pressed, after
loading in a NORMAL, CrO2,
METAL type cassette ( cassette for
TPS checking purposes and with
both recording tabs intact ).
TPS operation is executed. Check the following. / { F.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.
5 [REC] key is pressed, after loading
in a NORMAL type cassette ( with
both recording tabs intact ) REC operation shall not be executed. / Check the
following. / { F.REC INH SW } is ON / { HALF SW } is ON
6 Self-diagnostic mode is stopped by
pressing the [ ] Key.
LCD shall display the abnormality item code, when the
STOP key is pressed, it shall display the abnormality item
code in the following sequence. / [ TEST H 0 1] [ TEST H 0
2] [ TEST H 0 3]
7 To clear all the abnormalities in the
memory, press the [ ] Key for
more than 5 Sec while the self-
diagnostic mode is stopped.
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,[ TEST ] is displayed.
8 To cancel the self-diagnostic mode
press the Key.
POWER is OFF.At the next POWER ON, normal operation
shall be executed.
- 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. EEPROM Checksum (ROM correction)
Purpose : To check for micro-processor firmware version & EEPROM check (ROM correction).
Below is the procedures for this mode.
Step 1: Enter into Doctor mode (For more information refer to section 8.1 on key operation to enter into
this mode.
Step 2: Check for firmware version & EEPROM checksum.
- When entering into DOCTOR MODE the firmware version & checksum of
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