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Author Topic: The A1200 that has never "bin" opened...  (Read 3161 times)

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Offline motorollinTopic starter

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The A1200 that has never "bin" opened...
« on: January 12, 2006, 06:12:18 PM »
Well, it has "bin" opened now! :-) (Look here if you don't know what I'm talking about).

Had a bit of a shock when I opened her up though - just look at this:


She seems to work ok, and the motherboard looks fine underneath. I wonder whether I should remove that rusty shielding? Would the machine still work ok without it?

--
moto
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10  IT\'S THE FINAL COUNTDOWN
20  FOR C = 1 TO 2
30     DA-NA-NAAAA-NAAAA DA-NA-NA-NA-NAAAA
40     DA-NA-NAAAA-NAAAA DA-NA-NA-NA-NA-NA-NAAAAA
50  NEXT C
60  NA-NA-NAAAA
70  NA-NA NA-NA-NA-NA-NAAAA NAAA-NAAAAAAAAAAA
80  GOTO 10
 

Offline Gav

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Re: The A1200 that has never "bin" opened...
« Reply #1 on: January 12, 2006, 06:18:05 PM »
Hahaha yeah well since it has "bin" opened lol yeah it should be fine to remove the rusty metal but could you not just get the rust off?
I had a A600 a few yr back and the metal was all bent so i just remove the top case of it.
Gav
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A1200,BPPC603e+@240mhz-060@50mhz/Scsi2 192mb,Powerflyer,Mediator SX,Voodoo 3000,SB128,Tv card,SD/FF,Ethernet,CDRW.
 

Offline patrik

Re: The A1200 that has never "bin" opened...
« Reply #2 on: January 12, 2006, 06:22:40 PM »
@motorollin:

Let the shield be there, it will work perfectly for the task of shielding even if it has some rust on it and I doubt you will see the rust when the A1200 is assembled.


/Patrik
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Offline motorollinTopic starter

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Re: The A1200 that has never "bin" opened...
« Reply #3 on: January 12, 2006, 06:24:17 PM »
Arrrr I think it's dead :shocked:

Just powered it on, and I think the PSU turned itself off, but I can't quite remember. Now when I turn it on I just get a red screen and a flashing power LED :-(

--
moto
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10  IT\'S THE FINAL COUNTDOWN
20  FOR C = 1 TO 2
30     DA-NA-NAAAA-NAAAA DA-NA-NA-NA-NAAAA
40     DA-NA-NAAAA-NAAAA DA-NA-NA-NA-NA-NA-NAAAAA
50  NEXT C
60  NA-NA-NAAAA
70  NA-NA NA-NA-NA-NA-NAAAA NAAA-NAAAAAAAAAAA
80  GOTO 10
 

Offline Gav

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Re: The A1200 that has never "bin" opened...
« Reply #4 on: January 12, 2006, 06:28:00 PM »
Hmm a red screen usualy means something to do with the roms i think,carefully remove them and replace them and see if that works?
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A1200,BPPC603e+@240mhz-060@50mhz/Scsi2 192mb,Powerflyer,Mediator SX,Voodoo 3000,SB128,Tv card,SD/FF,Ethernet,CDRW.
 

Offline motorollinTopic starter

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Re: The A1200 that has never "bin" opened...
« Reply #5 on: January 12, 2006, 06:35:35 PM »
That's what I thought. I gently pushed down on them but it didn't make any difference. Left it off for a while and it started working. Weird. I've still got my 3.0 ROMs from when I upgraded my main 1200 to 3.1, so if it does it again I'll try swapping them.

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moto
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10  IT\'S THE FINAL COUNTDOWN
20  FOR C = 1 TO 2
30     DA-NA-NAAAA-NAAAA DA-NA-NA-NA-NAAAA
40     DA-NA-NAAAA-NAAAA DA-NA-NA-NA-NA-NA-NAAAAA
50  NEXT C
60  NA-NA-NAAAA
70  NA-NA NA-NA-NA-NA-NAAAA NAAA-NAAAAAAAAAAA
80  GOTO 10
 

Offline Chain

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Re: The A1200 that has never "bin" opened...
« Reply #6 on: January 12, 2006, 07:02:25 PM »
remove thar rusty {bleep}!

there will be small particles fo rust on board.

remove it and carefuly clean whole board
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too lazy to use shift key properly...
 

Offline uncharted

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Re: The A1200 that has never "bin" opened...
« Reply #7 on: January 12, 2006, 07:13:25 PM »
That is one skanky A1200.
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Offline JaXanim

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Re: The A1200 that has never "bin" opened...
« Reply #8 on: January 12, 2006, 08:20:49 PM »
Looks like the machine has been in 100% humidity for quite a while. Rust needs water and water isn't good for electronics.
I'm betting it's a gonner.

JaX
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Offline motorollinTopic starter

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Re: The A1200 that has never "bin" opened...
« Reply #9 on: January 12, 2006, 08:44:45 PM »
It seems ok now. I did remove the shielding just in case. I think I have some more from when I towered my main A1200, so I may replace it with that.

In order to remove it I had to take the floppy drive out, and I found something very interesting. Underneath the drive on the shielding was loads of black insulating tape. I turned the drive over and there was an exposed PCB - not something I have had on any of my other Amigas, and obviously the reason for the insulating tape.

I had noticed that the drive was acting strangely. Firstly, it doesn't click when empty. Secondly, if I boot using a Workbench disk then remove the disk, the drive starts clicking like mad, the floppy light comes on and a DF0:NDOS icon appears on the Workbench. If I put another disk in, it reads it and this weird activity stops.

Could it be that the drive has been changed to a non-Amiga one? This would clearly mean that it has "bin" opened after all!

After removing the shielding, I inspected the motherboard. First thing I noticed was that the rust has extended to the shielding on the RF modulator. I then saw a sticker on the motherboard for "Macklin Repair" stating "RF not working". No sh!t.

I'm now convinced that the machine has been opened. The warranty sticker was still there, but was a little bit damaged on one edge. I reckon he took it off then replaced it :pissed:

--
moto
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10  IT\'S THE FINAL COUNTDOWN
20  FOR C = 1 TO 2
30     DA-NA-NAAAA-NAAAA DA-NA-NA-NA-NAAAA
40     DA-NA-NAAAA-NAAAA DA-NA-NA-NA-NA-NA-NAAAAA
50  NEXT C
60  NA-NA-NAAAA
70  NA-NA NA-NA-NA-NA-NAAAA NAAA-NAAAAAAAAAAA
80  GOTO 10
 

Offline Gav

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Re: The A1200 that has never "bin" opened...
« Reply #10 on: January 13, 2006, 12:33:21 AM »
Hi
So does  the amiga work though?I`ve seen a lot of 1200 drives but im not sure if ive seen one with a bare pcb??I do have a couple of drives upstairs that i will inspect later...But yeah its possible it has been opend and just carefully replaced the sticker..But just aslong as it works?Does the RF still not work then?i bought another motherboard as ive had loads of faulty ones but my rf never worked either but was sold like that and i dont use the rf anyways.
Well let us know how you get on with the old girl...
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Offline AmigaEd

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Re: The A1200 that has never "bin" opened...
« Reply #11 on: January 13, 2006, 12:41:50 AM »
Quote
I then saw a sticker on the motherboard for "Macklin Repair" stating "RF not working".


Well, you didn't expect to find "Repaired by Doomy" did you?


-AmigaEd :-D
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Offline motorollinTopic starter

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Re: The A1200 that has never "bin" opened...
« Reply #12 on: January 13, 2006, 07:03:18 AM »
@Gav
Yeah it's working now. I'm not using the RF so I don't know if it works or not. Have you ever seen an A1200 floppy that doesn't click?

--
moto
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Code: [Select]
10  IT\'S THE FINAL COUNTDOWN
20  FOR C = 1 TO 2
30     DA-NA-NAAAA-NAAAA DA-NA-NA-NA-NAAAA
40     DA-NA-NAAAA-NAAAA DA-NA-NA-NA-NA-NA-NAAAAA
50  NEXT C
60  NA-NA-NAAAA
70  NA-NA NA-NA-NA-NA-NAAAA NAAA-NAAAAAAAAAAA
80  GOTO 10
 

Offline Oliver

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Re: The A1200 that has never "bin" opened...
« Reply #13 on: January 13, 2006, 07:08:18 AM »
Quote

motorollin wrote:
Have you ever seen an A1200 floppy that doesn't click?


no, but I haven't seen all that many 1200's.  They all clicked though.
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Offline BadBigBen

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Re: The A1200 that has never "bin" opened...
« Reply #14 on: January 13, 2006, 07:15:41 AM »
1.) Mine does not CLICK, though I have a Programm running to not do that... he he he...

2.) I took a look at the PIC, and I never seen a A1200 that only the keys turned YELLOW and the CASE pearly white... LOL...

3.) BTW what does the DRIVE say as to type and who made it...?
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