Tektronix 2467B (similar to 2465B): Error Message TEST 04 FAIL 13 (3453)

[tek_user]

Hi,

i am owning an Tektronix 2467B. Maybe someone can give me some advice,
please.
The 2467B shows following message:
TEST 04 FAIL 13 (3453)
I have got the complete service manual, but it says something like
"Option Error" ???
(The scope includes Option 10 and 11.)

If i delete the error message by pressing the A/B tigger button, the
device works, but
it has a awful DC-Offset on all channels (which varies with the V/div-
selection).


Best regards from Berlin

Harald

[JW]

Post by tek_user
Hi,
i am owning an Tektronix 2467B. Maybe someone can give me some advice,
please.
TEST 04 FAIL 13 (3453)
I have got the complete service manual, but it says something like
"Option Error" ???
(The scope includes Option 10 and 11.)
If i delete the error message by pressing the A/B tigger button, the
device works, but
it has a awful DC-Offset on all channels (which varies with the V/div-
selection).
Best regards from Berlin

You should ask this in sci.electronics.repair. There's a fellow who posts
there who used to work for Tektronix. (sci.electronics.repair added)

[Andreas Tekman]

Post by JW

Post by tek_user
Hi,
i am owning an Tektronix 2467B. Maybe someone can give me some advice,
please.
TEST 04 FAIL 13 (3453)
I have got the complete service manual, but it says something like
"Option Error" ???
(The scope includes Option 10 and 11.)
If i delete the error message by pressing the A/B tigger button, the
device works, but
it has a awful DC-Offset on all channels (which varies with the V/div-
selection).
Best regards from Berlin

You should ask this in sci.electronics.repair. There's a fellow who posts
there who used to work for Tektronix. (sci.electronics.repair added)

Well, we also read here :)

Looks like a problem in the calibration constants, stored in the NVRAM
A "TEST 04 FAIL 13 " condition means according to my manauls a "bad
checksum in the NVRAM".

If the NVRAM is ok, than this error can be corrected by doing the
calibration procedure (all steps mentioned in the handbook) and storing
the constants in the last step into the NVRAM.

hth, greets from Stuttgart,

Andreas

[Andreas Tekman]

Andreas Tekman schrieb:



Ah , sorry, noticed the follow up too late.

Andreas

[tek_user]

Hei Andreas,

kannst Du mir bitte Deine E-Mail-Adresse mitteilen ?
(Die hier im Forum hinterlegte funktioniert leider nicht.)

Gruss

Harald

Post by Andreas Tekman
Ah , sorry, noticed the follow up too late.
Andreas

[Andreas Tekman]

Post by tek_user
Hei Andreas,
kannst Du mir bitte Deine E-Mail-Adresse mitteilen ?
(Die hier im Forum hinterlegte funktioniert leider nicht.)
Gruss
Harald

Nicht leider, sondern das ist von mir so gew�nscht und beabsichtigt.

[GumpyGus]

It is likely to be a run-down battery. The calibration constants are held in a CMOS RAM which needs battery voltage to hold the calibration constants