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Author Topic: 040, possible to repair?  (Read 3824 times)

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Offline tokyoracerTopic starter

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Re: 040, possible to repair?
« Reply #29 from previous page: October 25, 2007, 08:26:48 PM »
Sorry to double post, first real action now and will be sent off to Sweden and hopefully it is a CPU issue. If not then the troubleshooting will bigin... Again. >.< Which I hope won't happen.

Fingers crossed & thanks PG! :-)
 

Offline tokyoracerTopic starter

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Re: 040, possible to repair?
« Reply #30 on: November 01, 2007, 12:00:07 PM »
Sorry to triple post but just to alert people it is in for a replacement CPU at the mo. Hopefully this is the solution. :-)
 

Offline pyrre

Re: 040, possible to repair?
« Reply #31 on: November 01, 2007, 09:24:32 PM »
Was the apollo 1240 ever fitted with SCSI onboard?
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Offline rkauer

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Re: 040, possible to repair?
« Reply #32 on: November 01, 2007, 11:10:21 PM »
 A tip: if the CPU is broken, take the opportunity to upgrade the processor to a 68060. It will cost more, but in return you'll have much more "horsepower" and less heat.
Goodbye people.

I\'ll pop on from time to time, RL is acting up.
 

Offline rkauer

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Re: 040, possible to repair?
« Reply #33 on: November 03, 2007, 11:49:55 PM »
 And another little help: here is the link to the Big Book of Amiga Hardware, where you can find the correct settings to board jumpers.

 Hope it helps.
Goodbye people.

I\'ll pop on from time to time, RL is acting up.
 

Offline taunusand

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Re: 040, possible to repair?
« Reply #34 on: November 04, 2007, 01:24:37 AM »
Maybe this is a dumb question..

But have you removed the battery??

A broken battery can cause the problem you have!

Sorry for my grammar  :roll:
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Offline alexh

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Re: 040, possible to repair?
« Reply #35 on: November 04, 2007, 08:53:31 AM »
A quick look at the photo and it looks like battery acid has eaten tracks around the battery.

Remove battery, clean with a mild solution of water and white vinegar and some cotton buds.

produce some more close up photo's showing the damage.
 

Offline tokyoracerTopic starter

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Re: 040, possible to repair?
« Reply #36 on: November 08, 2007, 11:39:36 AM »
Hi, sorry for not replying people, I didn't realise this topic was still active. The card is being returned to me and according to PG (having no luck getting it working) the following things have been tried & tested:

* Cpu
* Eprom
* Both mach PLD:s and memory stick
* New headers and jumpers (battery acid on old ones)
* Tried it with 060 cpu also..!
* New socket for the crystal oscillator
* Crystal oscillator
* The connector (cleaned)

I'm not sure if he has looked at the battery so I'll e-mail him now. Oh and I am not aware if it has had some sort of SCSI system or not as I havn't had it from new and I bought it as a faulty card.

Just to add PG thinks it's the 4 74ACT16543 IC's that are broken but aparently arn't avalible new anymore. If anyone can help me out here then I would be massivly greatful.


Any further help will be much apriciated! :-)
 

Offline tokyoracerTopic starter

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Re: 040, possible to repair?
« Reply #37 on: November 09, 2007, 09:42:19 AM »
Oh I have a reply, he has apparently removed the battery as it was leaking. I replied asking if there is any damage to the card itself, hopefully there isn't. Either way I will do some more scans when it arrives. :-)
 

Offline MastaTabs

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Re: 040, possible to repair?
« Reply #38 on: November 09, 2007, 10:45:41 AM »
if not exactly the 74FCT16543TVP's are available there should be replacement parts you can use I found some at IDT and also at TI

Offline tokyoracerTopic starter

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Re: 040, possible to repair?
« Reply #39 on: November 09, 2007, 12:59:11 PM »
IDT, TI? Not sure what your on about there, sorry.
 

Offline tokyoracerTopic starter

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Re: 040, possible to repair?
« Reply #40 on: November 09, 2007, 02:10:22 PM »
Sorry to double post (AGAIN) but I got a reply about the battery from PG. I hope he doesnt mind me forwarding his messages on but this is what he said, and I do quote;

"No, I really suspect the 4 interface ic:s (74ACT16543)
The battery leak wasnt a big problem yet, but could have been in the future.. :-) "

I will still show scans of the card again as soon as it arrives.
 

Offline tokyoracerTopic starter

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Re: 040, possible to repair?
« Reply #41 on: November 09, 2007, 05:53:53 PM »
Good news, the card has arrived and have done some scans of it.

Now:

Side 1: http://i33.photobucket.com/albums/d74/celliot/Scan10001.jpg

Side 2: http://i33.photobucket.com/albums/d74/celliot/Scan10002.jpg

Before:

Side 1: http://i33.photobucket.com/albums/d74/celliot/0401.jpg

Side 2: http://i33.photobucket.com/albums/d74/celliot/0402.jpg

Battery has been removed as you can see, the area looks spotless amazingly! :-)
 

Offline MastaTabs

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Re: 040, possible to repair?
« Reply #42 on: November 09, 2007, 07:28:17 PM »

Quote

tokyoracer wrote:
IDT, TI? Not sure what your on about there, sorry.


idt
TI

Offline rkauer

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Re: 040, possible to repair?
« Reply #43 on: November 09, 2007, 07:28:47 PM »
Quote

tokyoracer wrote:
IDT, TI? Not sure what your on about there, sorry.


 TI means Texas Instruments, IDT is another ic company (don't remember quite now the right name). Look for 74FCT16543TVP in Google.
Goodbye people.

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Offline chrisrot

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Re: 040, possible to repair?
« Reply #44 on: November 09, 2007, 07:56:42 PM »
Hi,

you can buy them from Digikey (www.digikey.com).
Search for 74ACT16543 or 74FCT16543.
Just just need a good soldering iron... ;-)

greets
christoph