MT2000 Fail code

[kc0ric]

I am having trouble with my MT2000 I have the following come up when I power on:
FAIL 01/92
FAIL 01/81
These are a new event also when I tried to program the radio it would not communicate with the computer. Thanks in advance.
73
KC0RIC

[kc0ric]

I found the codes on batlbs but can someone interperet, also I saw a mod for an A7 to 255 ch radio. The guy sold it to me saying it had 250 channels and I blew it off knowing an A7 was only 160 channels, but not knowing about the mod. capability. Could a poor mod be the culprit?? Also with the above mentioned fail codes my friend thought the data ribbon from the board to the accesory port might be ripped, is that a possibility with the way it is acting??

[camcam990]

These codes indicate that the code plug is corrupted, if you cannnot read the radio with the rss, I would send it back to the person that sold it to you and ask for my money back. This might be a dead end????? In the rss you have to set up the com port in the software to com port 1. then try and read you radio with the software. DOnot try to program it at this time, just read the radio and and then go thru the software and see what the code plug looks like, you can page thru the differant screens and see how many channels are in the radio. If you get this far you are doing good, if not then send it back. The other option is to try and load a new code plug into the radio, again this might work????? got to go

73 wk7q

[AEC]

From a previous posting:

If the controller never ends a POST, and the LED remains lit, it appears as though your controller is hosed with a dead micro.

Check all the connectors on the cover flex, and the jumper assy that ties the RF board to the controller, if the pins or flex are loose or even slightly pulled out, this may be the actual cause of your trouble.

Look for the obvious first, then dig a little deeper later.

As always, check for cold/poor solder joints on the connectors and controls as the CPU looks at these to ensure they are in operational condition then outputs a 'good' response if all is well.

If you DO get the radio to respond, but see codes on the display, here's a list you can check to see what those codes mean.

FAIL 01/81: FATAL! External ROM/flash checksum error...Bad ROM data, Defective ROM

FAIL 01/82: FATAL! External EEPROM checksum error....Bad external CP data, defective external EEPROM

FAIL 01/02: NON-FATAL External EEPROM checksum error....Bad external CP data

FAIL 01/84: FATAL! External EEPROM checksum blank...Unprogrammed external CP data

FAIL 01/88: FATAL! External RAM error...Defective RAM

FAIL 01/90: FATAL! Hardware failure..Defective I.C

FAIL 01/92: FATAL! Internal EEPROM checksum error...Bad internal CP data, defect. microcontroller

FAIL 01/12: NON-FATAL Internal EEPROM checksum error...Bad internal CP data

FAIL 01/94: FATAL! Internal EEPROM checksum blank...Unprogrammed internal CP

FAIL 01/98: FATAL! Internal RAM error.......defective microcontroller
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