All, I found some old Williams display boards with UDN6118P chips on them. I could not find a pdf for them. what are the differences between the A and P chips? Are they interchangeable? Barry ---------------- I meant PDF page 131 Matt On Tue, 26 May 2009 22:18:04 -0700, Matt Rossiter <matt@rossiters.com> wrote:
Some of the Fluke 9010a's (mine for example) might be different than these schematics, but you can look here on pdf page 137.
http://arcarc.xmission.com/Test%20Equipment/Fluke/9010A%20Base/9010A%20Servi... 0Manual.pdf
You should know how to convert Hex to Binary. HEX-08 -> D7=0 D6=0 D5=0 D4=0 D3=1 D2=0 D1=0 D0=0
If it's reporting BTS 8 is failing - then check the 4116 ram chip responsible for D3 - which is at locate U12.
If BTS 12 are failing, it means D3 and D2 are stuck. So check U11 and
U12
or their buffers.
Matt
On Tue, 26 May 2009 21:41:10 -0400, barry2@shilmover.com wrote:
Hooked up the 2nd 9010A. It returns:
R/W ERR @ C000 BTS 12 - LOOP?
Barry
----------------------
I been having trouble posting to the group... trying again.
I have 2 non-working 9010A units. On both they beep once, LEDs flash, then
nothing.
Hooked up a working 9010A that I borrowed (thanks David). Bus tests fine. RAM returns the following:
R/W ERR @ C000 BTS 08 - LOOP?
Manual states: If a RAM failure occurs, carefully examine the diagnostic message. The RAM
Test is usually sufficient for deducing the failed component directly.
It then does not explain how to read the message. :-) I am new to this, so be kind if its a stupid question.
I deduced that there is a Read/Write error at C000. How do I "deduce" the failed component?
Barry _______________________________________________ Techtoolslist mailing list Techtoolslist@flippers.com http://seven.pairlist.net/mailman/listinfo/techtoolslist FTP site is: ftp://ftp.flippers.com/TTL/TestEquipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/ _______________________________________________ Techtoolslist mailing list Techtoolslist@flippers.com http://seven.pairlist.net/mailman/listinfo/techtoolslist FTP site is: ftp://ftp.flippers.com/TTL/TestEquipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/
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