Damn that board looks well leaked. You should have led with pictures.

@Castellen
Getting 0.1 ohm is not always, depending on meter, as you have to take into account the natral resistance of meter being used.

Can you prepare 'patches' in Xdelta patcher format?

Yes, maybe, easier to get the final file, yes...

but improving CD-ROM support is important to me; I've noticed significant problems playing demanding animations:

The functioning of a computer or console is very complicated, I cannot guarantee anything with my work...

Here a new archive with 5 betas cd.device : beta testers need to check everything related to the CDRom and CDAudio, with if possible some benchmarks to see if there is some speed improvements or not...

40.29-TSF : only _TransferFromSector very well oprimized (this reworked subroutine is not included into the following revisions)
40.31 : few inlines, nothing really serious...
40.32 : many optimizations, especially for SEEK routines and subroutines...
40.33 : more deep optimizations for SEEK...
40.34 : many inlines...

I very quickly checked under WinUAE these versions into new FMV firmwares, they seems working, need now deep checking on the real hardware...

Still a lot of work to do...

(replace .pdf by .lha)

I would suspect, in case, of bad or little highter impedence on vias?

Vias should be a normal part of the circuit, so will have a continuity close to 0.1 Ohms.  Anything much higher means the via is open circuit.

Don't rule out the possibility of an accidental solder short between two lines.  This can be harder to find, because the end-to-end continuity will measure OK, but it will also be joined to some other unknown line.  You can usually see this condition on the scope, since if two logic outputs are incorrectly joined, you'll see 'halfway' logic levels as opposed to the usual 0v to 4-5V waveform.

Solder joints on the PLCC look OK.  Rework temperature of 380°C is good.  Could have also been a coincidence that a weakened via somewhere has been damaged while you were performing the rework on U3.  Anything is a possibility when there's been corrosion damage.

Graphics issues could also be caused by a fault with U2/Agnus, as that performs the graphics data move operations during the 'insert disk' animation.  Though I don't see how that would have failed from what you were doing.

The fastest way to progress at this point would be to get a working A500, A2000 or another A600; power the good working machine up on the 'insert disk' screen, and do the same with this problem A600.  Doesn't have to be connected to a monitor.  Use the scope to compare each pin on U2/Agnus and U3/Paula between the good and problem machines to identify any signal differences while viewing the 'insert disk' animation on both machines, especially noting specific signal activity while the disk animation is moving.  Note there are some pin number differences, A500/A2000 have the 8364 in DIP48 package, the 8364 in A600 is PLCC44.  There are also a few minor pin function differences between the 8371/8372 in A500/A2000 and the 8375 in A600.

Hey all

Amiga Bootblock Reader is a Windows program which allows you to manage amiga bootblocks from ADF disk images

- Recognises 3093 different bootblocks
- Has a DMS unpacker to allow unpacking of drawers full of DMS files
- Includes a similarity scanner to find out if you are looking at a clone bootblock
- Has a TOSEC bootblock scan feature which can help to identify disks and for your information
- Allows you to collect Bootblocks in a collection
- Includes a PNG picture of many of the recognised bootblocks for preview
- Also has GIF support to see a bootblock in action, for animated bootblocks
- Various other options
- Includes a PDF manual for a run down on features

Uses .NET 4.7.2 so can run on Windows 7 SP1 and above

If you wish to contribute any bootblocks to the project, please reach out




https://github.com/jasonthesmith79/AmigaBootBlockReader

This is an online version of my previously made Bingo machine program, as found on aminet.
The online version consists of two separate programs, the Bingo Server and the Bingo Client program.

The program is made with Hollywood so it would require some horsepower and RTG to run.

What I am looking for is someone willing to test this program so I will need both people willing to host bingo games as well as players.
I also looking or someone to test the bingo demo server to run it 24/7.