Forum: Amiga scene
26 February 2022, 19:57
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Replies: 2
Views: 533
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Forum: Retrogaming General Discussion
21 February 2022, 08:42
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Replies: 34
Views: 2,707
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Forum: Retrogaming General Discussion
12 October 2021, 19:12
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Replies: 40
Views: 6,594
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Forum: Retrogaming General Discussion
16 March 2021, 23:27
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Replies: 85
Views: 19,519
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Forum: support.Hardware
11 March 2021, 20:54
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Replies: 3
Views: 768
Can you check if the monitor does this with a...
Can you check if the monitor does this with a normal PC video source, just to eliminate the scandoubler.
I have a 17" Sony Trinitron which is great and works perfectly with PC but has a a bit of...
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Forum: support.Apps
20 January 2021, 00:13
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Replies: 4
Views: 1,170
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Forum: support.Hardware
27 February 2020, 20:26
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Replies: 17
Views: 1,839
Here you are -
...
Here you are -
https://www.bigbookofamigahardware.com/bboah/product.aspx?id=1651
I had one of these for while, some minor issues with the odd WHDLoad title but apart from that worked...
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Forum: support.Hardware
27 October 2019, 22:20
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Replies: 12
Views: 1,366
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Forum: support.Hardware
27 October 2019, 03:54
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Replies: 12
Views: 1,366
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Forum: support.Hardware
26 October 2019, 18:07
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Replies: 12
Views: 1,366
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Forum: support.Hardware
24 October 2019, 00:05
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Replies: 12
Views: 1,366
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Forum: support.Hardware
23 October 2019, 23:22
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Replies: 12
Views: 1,366
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Forum: support.Hardware
23 October 2019, 22:22
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Replies: 12
Views: 1,366
A600 Right mouse button fault
Hello, got an odd problem with an A600 here. In short the right mouse button either doesn't work at all or occasionally sort of works but seems to have a delay between pressing it and detection.
...
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Forum: support.Hardware
26 March 2018, 19:57
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Replies: 0
Views: 519
A1200 Rev1A, NTSC switch?
Hello, can any anyone tell me if this photo shows something normal for a rev1A A1200.
Q201 is in the NTSC/PAL switch circuit of the video encoder but has been left out here and the pads jumpered...
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Forum: support.Hardware
14 March 2018, 00:50
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Replies: 4
Views: 1,277
Audio circuit has a +ve and -ve power supply....
Audio circuit has a +ve and -ve power supply. C304 is probably correct as you have it, plus terminal to ground and minus terminal to -ve supply.
Don't take my word for it though, check the...
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Forum: request.Apps
03 March 2018, 16:50
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Replies: 2
Views: 965
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Forum: Retrogaming General Discussion
07 August 2017, 21:26
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Replies: 59
Views: 8,088
Mine has a not too shabby at all really mono...
Mine has a not too shabby at all really mono input and single speaker. I guess most of the Sony ones are the same. Fine for A600/A1200/CD32 with a single connector and ok for A500 with a simple...
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Forum: support.Hardware
01 August 2017, 22:41
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Replies: 10
Views: 2,005
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Forum: support.Hardware
30 July 2017, 11:11
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Replies: 10
Views: 2,005
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Forum: Coders. Asm / Hardware
26 May 2017, 20:02
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Replies: 14
Views: 1,987
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Forum: support.Hardware
21 May 2017, 00:45
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Replies: 12
Views: 1,313
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Forum: support.Hardware
14 May 2017, 12:04
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Replies: 10
Views: 1,337
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Forum: support.Hardware
12 May 2017, 23:46
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Replies: 10
Views: 1,337
I think wonky references to the video encoder...
I think wonky references to the video encoder could cause this. Check carefully the circuits to pin 13 and 14 of U12. Double check your replacement C459 and C460.
From memory Vref on pin14 should...
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Forum: support.Hardware
01 March 2017, 22:08
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Replies: 12
Views: 2,528
Generally just live with it but I did try a...
Generally just live with it but I did try a proper repair on my main A600. Light brass plate/foil, the heaviest guage than you can shape easily enough, epoxy glue and clamp the snapped pieces back in...
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Forum: support.Hardware
03 February 2017, 19:01
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Replies: 22
Views: 3,611
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Forum: Retrogaming General Discussion
30 January 2017, 20:57
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Replies: 13
Views: 2,817
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Forum: Retrogaming General Discussion
30 January 2017, 20:31
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Replies: 13
Views: 2,817
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Forum: News
30 January 2017, 20:25
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Replies: 7
Views: 3,614
Is this a fact or speculation? I realise it's...
Is this a fact or speculation? I realise it's unlikely as the data is probably long lost and in an obscure format if it does exist, but what made me wonder was that the A1200 includes the internal...
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Forum: News
30 January 2017, 00:00
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Replies: 7
Views: 3,614
amigapcb.org/
I don't know who made this but it was linked in a couple of threads and it is totally awesome and deserves a thread for recognition -
http://amigapcb.org/
Click the link to the beta for more...
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Forum: support.Hardware
29 January 2017, 23:52
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Replies: 7
Views: 1,719
Have to leave this one aside for the moment.
...
Have to leave this one aside for the moment.
Freezer spray made no difference once the machine is up and running. I'm not gonna try using it on cold boots as the fault is not 100% repeatable and...
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Forum: Retrogaming General Discussion
29 January 2017, 23:49
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Replies: 13
Views: 2,817
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Forum: support.Hardware
29 January 2017, 23:42
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Replies: 11
Views: 2,284
Not exactly true. Both these boards are rev8a...
Not exactly true. Both these boards are rev8a A500+, same code numbers for the artwork etc but as you can see the one on the right has the layout error corrected so the parts are inserted as per the...
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Forum: support.Hardware
26 January 2017, 23:10
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Replies: 7
Views: 1,719
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Forum: support.Hardware
26 January 2017, 02:06
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Replies: 7
Views: 1,719
PSU is not a standard Amiga one, it is an...
PSU is not a standard Amiga one, it is an industrial type thing I keep for testing. Works great on lots of other Amigas so I think it is solid.
I am thinking of changing the two main filter caps...
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Forum: support.Hardware
26 January 2017, 01:10
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Replies: 7
Views: 1,719
A500, cold boot gurus?
I have almost fixed an A500 which came to me dead but it has a niggling fault remaining which I'd like to track down given the damage that had previously been done somehow.
First the symptoms -
...
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Forum: support.Hardware
22 December 2016, 02:06
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Replies: 13
Views: 2,232
I would say it is normal to hear low level...
I would say it is normal to hear low level digital rubbish during many types of activity on the amiga, mouse movement, heavy screen updates, and particularily disk activity and it will be especially...
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Forum: support.Hardware
07 December 2016, 02:35
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Replies: 7
Views: 1,586
Got the bastard! Turned out to be a ceramic...
Got the bastard! Turned out to be a ceramic decoupling cap at the video DAC. Freeze spray worked a treat, it was very obvious which component was cooking itself when it got a dose.
Everything...
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Forum: support.Hardware
04 December 2016, 22:59
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Replies: 7
Views: 1,586
Had a good hunt for this and still no luck....
Had a good hunt for this and still no luck. Before I start lifting components one by one I might try this -
1. Something on the board is broken and gives ~20 ohms between 5v and ground.
2. 5V...
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Forum: support.Hardware
04 December 2016, 22:46
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Replies: 4
Views: 1,441
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Forum: support.Hardware
30 November 2016, 00:49
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Replies: 7
Views: 1,586
Good idea, hoped I would be able to at least...
Good idea, hoped I would be able to at least isolate an area of the board but I didn't manage to find any clues. I have an LCR meter which is a bit more accurate than my cheapo multimeter but I...
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