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Electronics => Repair => Topic started by: stfjohn on October 06, 2023, 02:24:22 pm

Title: Tektronix 2465A DM
Post by: stfjohn on October 06, 2023, 02:24:22 pm

Hello,
Here we go again: when you turn on, the message "test 05 fail 24" appears (the following text appears in the service manual: "ADD main board - positive level not positive enough"). Can anyone help me?
Thanks.

Title: Re: Tektronix 2465A DM
Post by: tggzzz on October 06, 2023, 04:10:29 pm

For a good starting point, try this (https://letmegooglethat.com/?q=%22test+05+fail+24%22+tektronix+2465a).

Title: Re: Tektronix 2465A DM
Post by: stfjohn on October 07, 2023, 09:11:52 pm

Thanks,
I tried to follow your advice, but, in no case, the problem relating to the error I reported is addressed, unfortunately....

Title: Re: Tektronix 2465A DM
Post by: med6753 on October 09, 2023, 01:40:16 pm

In section 9 of the 2465 manual there are error diagnostic flowcharts. I am assuming that the 2465A is similar. Would be worthwhile to check.

Edit.....does that scope have the DMM option? If yes you may also need the 2465A Options Service Manual. Make sure it's for the "A" suffix and not the "no suffix" or "B" suffix. There are significant differences.

Title: Re: Tektronix 2465A DM
Post by: tggzzz on October 09, 2023, 01:56:23 pm

Quote from: med6753 on October 09, 2023, 01:40:16 pm

In section 9 of the 2465 manual there are error diagnostic flowcharts. I am assuming that the 2465A is similar. Would be worthwhile to check.

Edit.....does that scope have the DMM option? If yes you may also need the 2465A Options Service Manual. Make sure it's for the "A" suffix and not the "no suffix" or "B" suffix. There are significant differences.

It is the same, except the 2465A is p6-10.

Either gurgle has become seriously crappier recently, or the OP's google-fu is deficient, or both. There are many manuals at https://w140.com/tekwiki/wiki/2465A , and probably ko4bb and bama.