Power Up Self-Test; Error Codes - Motorola GP300 Series Basic Service Manual

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Error Codes

Turning on the radio starts a self-test routine that checks the radio functionality. If the checks are
successful, the radio generates a high-pitched self-test pass tone. If the self-test is not successful,
one low-pitched (300Hz) error tone is heard and the RED LED flashes several times to indicate the
reason for the failure (see Table 7-1 below). After flashing the error code, the LED remains off for 5
seconds and then repeats the error code. The LED sequence and the error tone continue until the
radio is switched off. Radios with displays are also able to display error codes. The meaning of the
LED indication, the displayed error codes and the related corrections are listed in Table 7-1.
If the error code
displayed is...
"Test 1 Failed"
"Test 2 Failed"
"Test 3 Failed"
"Test 4 Failed"
"Test 5 Failed"
"Test 6 Failed"
"Test 7 Failed"
"Test 8 Failed"
No Display.
300Hz Tone and
Flashing LED.
(Radio with no
display).
Table 7-1 Power-up Error Codes
The LED
flashes...
Once Hardware codeplug error,
possibly codeplug structure
mismatch or non-existant
codeplug.
Twice Select 5 Application Vector
corrupted.
Three times Codeplug Checksum error.
Four times Codeplug Version Error.
Five times ROM Checksum test failure.
Six times RAM Checksum test failure.
--- ---
Eight times Radio Model Number failure. Reprogram codeplug for correct
Display module is not
connected.
Display module faulty.
Radio failure or invalid
codeplug as described
above.

POWER UP SELF-TEST

then, there is a...
Chapter 7
To correct the problem...
Reprogram codeplug. If message
re-occurs, replace main board or
return it to the nearest Motorola
depot.
Reprogram codeplug and retest the
radio.
Reprogram codeplug and retest the
radio.
Reprogram codeplug using the
correct version and retest the radio.
Turn radio off then on again. If the
message re-occurs replace the main
board or return it to the nearest
Motorola depot.
Turn the radio off then on again. If the
message re-occurs replace the main
board or return it to the nearest
Motorola depot.
Reserved
model.
Check connection between main
board and the display module
Replace display module.
Turn the radio off then on again.
Confirm that there is a 300Hz fail
tone and count the number of flashes
made by the LED. Make the relevant
correction as described above