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Search: Posts Made By: telemonster
Forum: MarketPlace 20 August 2021, 17:37
Replies: 8
Views: 845
Posted By telemonster
That... is amazing.... I will try to get a...

That... is amazing....

I will try to get a pic of mine this weekend.
Forum: MarketPlace 18 August 2021, 17:43
Replies: 8
Views: 845
Posted By telemonster
I can take pics but imagine you took an Amiga...

I can take pics but imagine you took an Amiga 3000, took a dremel, and cut a large rectangle hole to fit a normal plain-faced half height 3.5" floppy drive where the A3000 drive was.


The A3000...
Forum: MarketPlace 18 August 2021, 16:23
Replies: 8
Views: 845
Posted By telemonster
[WANTED] A3000 front plastic + drive

Have an Amiga 3000 where front plastic was cut out for a 3rd party drive. Looking for original faceplate, and maybe a floppy drive to restore to original.
Forum: MarketPlace 21 July 2021, 17:45
Replies: 56
Views: 9,673
Posted By telemonster
Recently got an Atari STacy project and I am...

Recently got an Atari STacy project and I am looking to add one of these to it. The hard drive is dead, not sure if the SCSI controller works.

Looking at the STacy schematics the pins from the...
Forum: MarketPlace 10 May 2021, 21:23
Replies: 1
Views: 403
Posted By telemonster
Wanted: A1200 US keyboard & metal shields

Hello,


Just repaired an A1200 mobo over the weekend. Have case. Need the keyboard / metal shields. Would also be interested in floppy and case screws.



I saw the desktop case for sale...
Forum: MarketPlace 21 February 2021, 06:44
Replies: 0
Views: 346
Posted By telemonster
WTB: A600 Motherboard

Hello,


I have been working on an Amiga 600 for months. A friend gave it to me many years ago, it worked 100%. We took it to events and let the public play on it. Cap leakage hit. I've spent...
Forum: MarketPlace 11 November 2020, 17:51
Replies: 0
Views: 453
Posted By telemonster
WTB: 8375 (NTSC) or Amiga 600 motherboard

I am trying to repair an Amiga 600 motherboard. Issue was originally cap damage. Am interested in an 8375 NTSC Agnus, or a 8375 Pal (anyone know if that will work?)


I would also be interested in...
Forum: MarketPlace 16 June 2020, 22:50
Replies: 0
Views: 434
Posted By telemonster
Wanted: Fat Agnus 8375 NTSC

Looking for NTSC Fat Agnus, 8375.


There is a cool online store in Germany with them NOS, but the shipping is like $45 so looking fora different source.


This is for an Amiga 600 repair.

...
Forum: support.Hardware 03 May 2020, 05:16
Replies: 33
Views: 2,897
Posted By telemonster
Okay, sorry for delay. New in wrapper with...

Okay, sorry for delay.

New in wrapper with serial number stickers Agnus = 318069-02 9 (8372A)

Opened wrapper yellow dot = CSG 318069-02(small mark) (8372A)

Amiga 600 of course has a NTSC...
Forum: support.Hardware 29 April 2020, 17:58
Replies: 33
Views: 2,897
Posted By telemonster
Interesting! That looks similar to the two I...

Interesting! That looks similar to the two I have. I will take pics tonight.
Forum: support.Hardware 29 April 2020, 17:57
Replies: 33
Views: 2,897
Posted By telemonster
I will check when I get home. In this case they...

I will check when I get home. In this case they are definitely the wrong parts. The two spares I have are 1MB and for 500/2000 and the 600 uses a 2MB chip. Looking at wikipedia the pinouts are vastly...
Forum: support.Hardware 27 April 2020, 00:24
Replies: 33
Views: 2,897
Posted By telemonster
Cool! Yea, I watched a friend solder a jtag...

Cool! Yea, I watched a friend solder a jtag header on something they were ... extracting firmware off of by hand, using a portable microscope and nice iron. I think he wicked it off.

Hopefully my...
Forum: support.Hardware 26 April 2020, 22:44
Replies: 33
Views: 2,897
Posted By telemonster
No serial output using bench supply since missing...

No serial output using bench supply since missing the -12v or whatever, but colors flashed on screen mostly red so I think that is bad.

I found a video card in the garage (S3 Trio64) that has two...
Forum: support.Hardware 26 April 2020, 20:57
Replies: 33
Views: 2,897
Posted By telemonster
Very cool! Thanks for the info!! One thing...

Very cool! Thanks for the info!! One thing though, I would think that any expansion RAM card (or that add on) -- since it's tied to different Row/Column lines it's always going to be the upper side...
Forum: MarketPlace 26 April 2020, 01:28
Replies: 0
Views: 451
Posted By telemonster
WTD: A600 motherboard

Troubleshooting an A600 motherboard. If a working motherboard was for sale I would be interested in buying one.


Thanks
Forum: support.Hardware 26 April 2020, 01:26
Replies: 33
Views: 2,897
Posted By telemonster
Thanks for the reply and info. I just buzzed...

Thanks for the reply and info. I just buzzed through all the data and address lines from the Agnus (as well as some of them on the CPU side) and no shorts to ground or VCC.

I suppose swapping the...
Forum: support.Hardware 23 April 2020, 17:01
Replies: 33
Views: 2,897
Posted By telemonster
I took a few days break from it, I find that...

I took a few days break from it, I find that returning with a clear mind often leads to new discovery.

How common are failed customs? I'm getting worried that the issue is the Agnus or something...
Forum: support.Hardware 21 April 2020, 05:32
Replies: 33
Views: 2,897
Posted By telemonster
Looks like that is on purpose,

Looks like that is on purpose,
Forum: support.Hardware 21 April 2020, 05:17
Replies: 33
Views: 2,897
Posted By telemonster
Much thanks for the info, will flush the board! ...

Much thanks for the info, will flush the board!



Okay back at it.

At work before I got home I had an epiphany that maybe it's VIA damage near cap C612. I replaced it with an aluminum SMD...
Forum: support.Hardware 20 April 2020, 17:09
Replies: 33
Views: 2,897
Posted By telemonster
Unfortunately I only have the base system. It was...

Unfortunately I only have the base system. It was stock when my friend gave it to me 10+ years ago.


To the other post regarding RAS and CAS, I will poke at that again tonight. I can verify...
Forum: support.Hardware 20 April 2020, 17:07
Replies: 33
Views: 2,897
Posted By telemonster
I looked at it a little bit. I see the reset pin...

I looked at it a little bit. I see the reset pin on the M68K high when the system is running.


DiagROM comes up and runs through memory test, would the reset circuit prevent this?



Note -...
Forum: support.Hardware 20 April 2020, 04:27
Replies: 33
Views: 2,897
Posted By telemonster
Okay, hit it with some white vinegar just to be...

Okay, hit it with some white vinegar just to be safe -- then rinsed it off. On my A2500 when I was taking care of the battery damage I did white vinegar then baking soda then cleaned it all off, but...
Forum: support.Hardware 19 April 2020, 23:55
Replies: 33
Views: 2,897
Posted By telemonster
Psoma - Thanks! Will take that on tonight! I...

Psoma - Thanks! Will take that on tonight! I checked activity on the transceivers and saw data flow in and out (nothing being held high/low) but that doesn't mean much. I should trace out the...
Forum: support.Hardware 19 April 2020, 23:27
Replies: 33
Views: 2,897
Posted By telemonster
The more I work on it the more it seems not that...

The more I work on it the more it seems not that bad damage wise. In the middle most of the damage is concentrated on the two pads, near the power input I managed to work around any damage and then...
Forum: support.Hardware 19 April 2020, 03:14
Replies: 33
Views: 2,897
Posted By telemonster
Replaced C307, no change Checked data...

Replaced C307, no change

Checked data signals from 68K, all of them show activity. Nothing odd (like, nothing is held high or low.)

Sniffing around the damage of the +12/-12 caps, I tried a...
Forum: support.Hardware 18 April 2020, 23:52
Replies: 33
Views: 2,897
Posted By telemonster
Thanks for the reply. The reset circuit would...

Thanks for the reply. The reset circuit would prevent the computer from ever starting right? In my case the DiagRom is starting, it's just filled with RAM errors. Seems like errors either writing or...
Forum: support.Hardware 18 April 2020, 19:49
Replies: 33
Views: 2,897
Posted By telemonster
Some more followup

Started to do more digging.


Clipped in caps to replace the two 47uF that sit on the +12/-12 rails. No different.


Looked through the board more in the damaged areas. Damage is mostly around...
Forum: support.Hardware 17 April 2020, 03:30
Replies: 33
Views: 2,897
Posted By telemonster
Amiga 600 Ressurection - Cap damage, RAM errors

Hello all!



With the change in social activities I decided to take a crack at a long overdue project. Years ago a friend gave me his Amiga 600, and I cherished it. It started to smell bad, and...
Showing results 1 to 28 of 28

 
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