Re: 11801 diagnostic help

Reginald Beardsley


Thanks. The exit and debug buttons are the only ones that are not active when it stops. Setting "stop on error" off has no effect.

With NVRAM replacements on the way and no service data yet, I think I'll wait until I get the chips and the correct manual. I'd like to have it working properly and passing all the diagnostics before I plug in the SD-22s. No sense getting in a hurry and causing extra problems.

The only boards with identifying labeling are two memory boards and a waveform compression board. IIRC from when I removed the boards and reseated them, two of the boards don't have any silkscreen labeling at all. The fabrication is very different from the ones made by Tektronix.

Once I have the chips and the manual I'll take it apart, identify the boards and label them. I also plan to copy all the ROMS while I have it apart. Despite their age they are still very impressive instruments. I also plan on scanning the manuals I get and sending them to the repositories.



On Sat, 3/16/19, Albert Otten <aodiversen@...> wrote:

Subject: Re: [TekScopes] 11801 diagnostic help
Date: Saturday, March 16, 2019, 3:14 PM

Hi Reg,

IIRC you can exit the Extended Diagnostics
screen by pressing the Exit touch-screen field two times.
Another possibility to have the instrument at
least doing something is to bypass the Self test and
Extended Diagnostic tests by setting jumpers J712 and J713
on the I/O board to the 0 position. These jumpers are
difficult to reach with the board in situ, I found it easier
to remove the board and then change the jumper settings.

On Sat,
Mar 16, 2019 at 02:31 PM, Reginald Beardsley wrote:

Because of the E5622 error I can't exit the extended

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