Amiga 1200 not powering up sometimes

Lips2k8 · 04 February 2009, 23:48

Hi there, I have a problem with my A1200... sometimes when i flick the power switch it just sits at a grey screen with the floppy drive clicking. I think that the motherboard is damaged as it only started acting up like this since I put a faulty 030 accelorator in it... I didnt know it was faulty at the time and have since replaced with a working 030 board.

twizzle · 05 February 2009, 00:00

the first thing i would do is to take the psu round to your local small electric/handymans shop get it checked out,

Peter · 05 February 2009, 00:27

Try checking to see if the ROM chips are seated properly and check that the new 030 card is pushed onto the motherboard slot and sitting "Home" as it were...

Does it boot normally without the card in place?

All ribbon cables fitting onto the motherboard correctly?
As Twizzle states, check there is sufficient power from the supply...

Basic checks first I guess...

Lips2k8 · 05 February 2009, 03:21

thanks for the prompt answers guys, yea the psu has been ruled out as I have two other amiga 500 psu's that I have tried and it does exacltly the same... yep checked all cables, conections and pushed down on the chips to makesure they are seated. The 1200 behaves exacltly the same with or with out the 030 card installed... is it a motherboard issue?

Amiga1992 · 05 February 2009, 04:31

Maybe some caps on th input of power are flaky

Lips2k8 · 05 February 2009, 14:30

hmmm ok I will check them out - hows the best way to spot a bad cap? are they easily availbable from somewhere like maplins?

hit · 05 February 2009, 14:42

have a look here. its german, but best what i found: http://www.amiga-library.de/rep/rep_elko_1200.html

Lips2k8 · 12 February 2009, 22:23

Well guys thanks for all yor help I know have the amiga 1200 up and running... I pulled the rom chips and re seated them... cleaned the edge conector and gave the miggy a general spit and polish - only problem now is the floppy drive isnt working

but not a major problem gonna have a look in my old pc bits for a moddable pc drive.

04 February 2009, 23:48	#1
Lips2k8 Registered User Join Date: Apr 2008 Location: wolverhampton Posts: 51	Amiga 1200 not powering up sometimes Hi there, I have a problem with my A1200... sometimes when i flick the power switch it just sits at a grey screen with the floppy drive clicking. I think that the motherboard is damaged as it only started acting up like this since I put a faulty 030 accelorator in it... I didnt know it was faulty at the time and have since replaced with a working 030 board.

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05 February 2009, 00:00	#2
twizzle Registered User Join Date: Sep 2005 Location: taunton.som.uk Age: 73 Posts: 681	the first thing i would do is to take the psu round to your local small electric/handymans shop get it checked out,

05 February 2009, 00:27	#3
Peter Still an Amiga user Join Date: Nov 2006 Location: Kent Age: 55 Posts: 2,715	Try checking to see if the ROM chips are seated properly and check that the new 030 card is pushed onto the motherboard slot and sitting "Home" as it were... Does it boot normally without the card in place? All ribbon cables fitting onto the motherboard correctly? As Twizzle states, check there is sufficient power from the supply... Basic checks first I guess...

05 February 2009, 03:21	#4
Lips2k8 Registered User Join Date: Apr 2008 Location: wolverhampton Posts: 51	thanks for the prompt answers guys, yea the psu has been ruled out as I have two other amiga 500 psu's that I have tried and it does exacltly the same... yep checked all cables, conections and pushed down on the chips to makesure they are seated. The 1200 behaves exacltly the same with or with out the 030 card installed... is it a motherboard issue?

05 February 2009, 04:31	#5
Amiga1992 Registered User Join Date: May 2001 Location: ? Posts: 19,645	Maybe some caps on th input of power are flaky

05 February 2009, 14:30	#6
Lips2k8 Registered User Join Date: Apr 2008 Location: wolverhampton Posts: 51	hmmm ok I will check them out - hows the best way to spot a bad cap? are they easily availbable from somewhere like maplins?

05 February 2009, 14:42	#7
hit Registered User Join Date: Jun 2008 Location: planet earth Posts: 1,115	have a look here. its german, but best what i found: http://www.amiga-library.de/rep/rep_elko_1200.html

12 February 2009, 22:23	#8
Lips2k8 Registered User Join Date: Apr 2008 Location: wolverhampton Posts: 51	Well guys thanks for all yor help I know have the amiga 1200 up and running... I pulled the rom chips and re seated them... cleaned the edge conector and gave the miggy a general spit and polish - only problem now is the floppy drive isnt working but not a major problem gonna have a look in my old pc bits for a moddable pc drive.

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