HT1250 Dead

arlojanis · Post by **arlojanis** » Wed May 24, 2006 10:27 am

My HT1250 LS UHF will not power on. I have checked battery contacts, fuse, and switch. What else can I check?

HLA · Post by **HLA** » Wed May 24, 2006 11:29 am

the switch itself and the ribbon cables.

arlojanis · Post by **arlojanis** » Wed May 24, 2006 11:32 am

I have removed and reinstalled the ribbon-flex cables. I also resoldered switch connections.

HLA · Post by **HLA** » Wed May 24, 2006 11:42 am

do you hear anything, is it possible the display is just dead? try a different battery or a bench power supply.

arlojanis · Post by **arlojanis** » Wed May 24, 2006 12:33 pm

Do not hear anything. Tried battery, sp-mic, no read either.

HLA · Post by **HLA** » Wed May 24, 2006 12:59 pm

a trip to motorola it lsounds like.

Post by **wavetar** » Wed May 24, 2006 4:48 pm

Is it possible it died during a botched firmware upgrade? If so, it may just be stuck in "bootstrap" mode. Another possibility is it was programmed at one point with a SmartRIB, and a diode on the "boot control" line was burnt up & is now shorted. It's located near the bottom of the board...just removing it will fix the problem.

Otherwise, it could also be a defective reference oscillator...or something in the front board, or a host of other problems.

Todd

firecomm · Post by **firecomm** » Thu May 25, 2006 4:52 am

Check your PM's