Radix
Experienced Member
Hi All
Looking for any more insight than the pocket service guide gives with :

I have the highlighted code - I think the T11 cpu is failing an early test - it can send data to the keyboard LEDs and then stops, but no obvious documentation as to what each LED code means...
Already checked and swapped all the ROMs, tried a different T11 and (cringe) piggy-backed ram chips on both sets of DRAM
It was in use when it failed - no smoke (!) - picture still on screen, just totally unresponsive, not receiving data, keyboard not responding, after power off/on just the keyboard LED error, no beep or text display
Just hoping someone might have seen this in the past - I'm rather desperate to get the VT240 back up and running ASAP...
Thanks,
Robin
Looking for any more insight than the pocket service guide gives with :

I have the highlighted code - I think the T11 cpu is failing an early test - it can send data to the keyboard LEDs and then stops, but no obvious documentation as to what each LED code means...
Already checked and swapped all the ROMs, tried a different T11 and (cringe) piggy-backed ram chips on both sets of DRAM
It was in use when it failed - no smoke (!) - picture still on screen, just totally unresponsive, not receiving data, keyboard not responding, after power off/on just the keyboard LED error, no beep or text display
Just hoping someone might have seen this in the past - I'm rather desperate to get the VT240 back up and running ASAP...
Thanks,
Robin