Re: UDN6118A vs UDN6118P

My Fluke 9010a display has 6118P.

Matt

On Sun, 31 May 2009 19:50:40 -0500, Rodger Boots <rlboots@cedar-rapids.net>
wrote:
> Usually an "N" or "P" suffix means the package is a plastic DIP. For
> Allegro (used to be Sprague) parts the "A" means plastic DIP---for
> anyone else would have meant improved part.
>
>
> barry2@shilmover.com wrote:
>> 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%20Service%2
>> 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/
>>>>
>>> _______________________________________________
>>> 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/
>> _______________________________________________
>> 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/
_______________________________________________
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/
Received on Mon Jun 1 15:38:42 2009