MTS2000 - reboots when gently press on front of radio

[g8tzl2004]

I have an 800 MHz MTS2000 (top display no keypad) which works OK but the radio keeps rebooting when I apply a small amount of pressure on the middle front of the radio about 2 inches from the base...and it keeps on rebooting each time I press on the front of the radio.

I initially thought that the flex cables might need to be reseated or maybe the battery contacts had a dry joint.

However, I have dismantled the radio twice and reseated everything but I still have the problem.

I'm guessing that it might now be a cracked flex cable or a dry joint on the flex cable sockets on the logic board or maybe around the on/off pot. So when I press on the front of the radio it is causing the dry solder joint or flex crack to "open up" so causing the radio to reboot - as if it had been powered on and off. You also sometimes get a slight speaker cracking when you press in on the front of the radio.

Does anybody know exactly where I should be looking for this fault. Although I am pressing down on the front of the radio around 2 inches from the bottom, i guess this action could be putting pressure anywhere along the length of the flex?? Maybe its not even a flex problem?

Any ideas before I open up the radio for a third time?

Thanks

[Will]

Check the connector from the RF board to the controller board.

[g8tzl2004]

Will - I have already reseated the RF to Controller board connector.

I don't think pressing on the front of the MTS2000 will cause any "movement" of the RF and Controller PCB's and the connector between them - they are all well seated inside the back chassis and screening, I think. In fact the screening cans are locked in place with removable small clips - with my other MTS2000's, there are no clips - the screening just pushes into place.