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Forum: support.Hardware 15 May 2018, 12:58
Replies: 43
Views: 1,978
Posted By glenn
Actually the A4000 motherboard is fairly easy to...

Actually the A4000 motherboard is fairly easy to work with, only 4 layers (i.e 2 layers except ground and +5V), "big" components (1206 resistors, mostly PLCC IC's) and fairly high quality.

...
Forum: support.Hardware 11 May 2018, 03:50
Replies: 43
Views: 1,978
Posted By glenn
Hmm, I replaced all electrolytic capacitors on...

Hmm, I replaced all electrolytic capacitors on the card, and after that it didnt boot at all in diagrom.

I added a fastmem SIMM and now it boots with serial output, "no chipmem detected"

If I...
Forum: support.Hardware 08 May 2018, 22:07
Replies: 43
Views: 1,978
Posted By glenn
Some of the chips I have ordered is waiting for...

Some of the chips I have ordered is waiting for me to pick the up at the post office (i.e ICA) now, then i will swap some IC's and see if it helps.
Forum: MarketPlace 04 May 2018, 08:47
Replies: 5
Views: 471
Posted By glenn
I had mine since july 2017 :) ...

I had mine since july 2017 :)

http://safir.amigaos.se/bildgalleri/users2/16913_DSC_6312%20%28Large%29.JPG

..It's about 80-90% finished before I lost the spark and put it on the shelf for a...
Forum: support.Hardware 02 May 2018, 19:44
Replies: 43
Views: 1,978
Posted By glenn
Yes, it is strange, it is like it never even try...

Yes, it is strange, it is like it never even try to set it high. ..Hmm, maybe if something is holding the A20 down, shorting it to ground or something.. IƤll take a look and see if I can find...
Forum: support.Hardware 02 May 2018, 01:41
Replies: 43
Views: 1,978
Posted By glenn
Yes, and the same module works on other A4000...

Yes, and the same module works on other A4000 motherboards.

This time I even measured directly on the 030-card, if there was any troubles in the connector, but no.
Forum: support.Hardware 02 May 2018, 01:24
Replies: 43
Views: 1,978
Posted By glenn
All 33ohms are ok near U216 and U212, just...

All 33ohms are ok near U216 and U212, just checked again.

Also, A0-A9 are clear all the way from Alice to Ramsey and fastslot, also just checked.

Well RAS/CAS, I measured that many times now.. ...
Forum: support.Hardware 01 May 2018, 15:40
Replies: 43
Views: 1,978
Posted By glenn
Yes O have both ran test without shadow detection...

Yes O have both ran test without shadow detection on 0-2M and a manual test 1-2M.

So, it never flip the A20 bit.. what is responsible for that ? Alice ?
Forum: support.Hardware 01 May 2018, 02:17
Replies: 43
Views: 1,978
Posted By glenn
Just to be sure I connected another motherboard...

Just to be sure I connected another motherboard with working chipRAM and did the same test, it sure was difference when it passed 1M..

But why does it never generate it ?
Forum: support.Hardware 01 May 2018, 02:05
Replies: 43
Views: 1,978
Posted By glenn
I realised that a scope might be overkill, I have...

I realised that a scope might be overkill, I have an old logic probe, so I decided to use that instead, and now I get activity, however, I see (or hear) no difference when I pass the 1M linit, so it...
Forum: support.Hardware 01 May 2018, 00:01
Replies: 43
Views: 1,978
Posted By glenn
Yes, in one of the PCB mountholes.. I'm not...

Yes, in one of the PCB mountholes..

I'm not really friend with this scope (hardly ever use it), but I do get activity on other places, ECLK and TICK for example.
Forum: support.Hardware 30 April 2018, 13:44
Replies: 43
Views: 1,978
Posted By glenn
I checking at the fastslot, it was the easiest...

I checking at the fastslot, it was the easiest place I thought.
Forum: support.Hardware 30 April 2018, 12:35
Replies: 43
Views: 1,978
Posted By glenn
I brought the scope, and looking at the A20 is ee...

I brought the scope, and looking at the A20 is ee no activity.. however, I see no activity at all on A1..20 when scanning memory ?
Forum: support.Hardware 27 April 2018, 11:19
Replies: 43
Views: 1,978
Posted By glenn
When I get home I will carry the scope to the...

When I get home I will carry the scope to the computerroom and see if there is any activity on A20.. but im not sure what it would tell me, it seem to be obvious that that the problem is there...
Forum: support.Hardware 27 April 2018, 01:01
Replies: 43
Views: 1,978
Posted By glenn
I'm not a pro on this, but if I look at the...

I'm not a pro on this, but if I look at the chipmemory first, for example $000FF804, and then look at $001FF804, I see exactly the same data there.

I can also do a manual memorytest from...
Forum: support.Hardware 26 April 2018, 13:28
Replies: 7
Views: 482
Posted By glenn
I only replace capacitos if they have leaked,...

I only replace capacitos if they have leaked, except that if any of the 22uF have leaked I replace all of them.

By the way, your Lisa is a pretty uncommon version, it's not made by HP as they...
Forum: support.Hardware 26 April 2018, 13:24
Replies: 8
Views: 465
Posted By glenn
The local RAM on the A2630 is mapped into the Z2...

The local RAM on the A2630 is mapped into the Z2 space unfortunatly, so you quickly run out of Z2 space if you have a A2630 and a few zorrocards.

I had to remove memory from my SCSI-card when I...
Forum: support.Hardware 26 April 2018, 13:21
Replies: 6
Views: 417
Posted By glenn
Also the Toccata was sold togethler with the Vlab...

Also the Toccata was sold togethler with the Vlab motion, to record video and sound at the same time.

I know three persons that had (or have) a Toccata, two of them also had a Vlab Motion.
Forum: support.Hardware 26 April 2018, 08:32
Replies: 43
Views: 1,978
Posted By glenn
Yesterday I measured every signal between U216...

Yesterday I measured every signal between U216 and Alice, no problems there.

..Since I didnt bring a scope I instead started to measuring on another board.. but that didnt go so well either, might...
Forum: support.Hardware 25 April 2018, 11:49
Replies: 43
Views: 1,978
Posted By glenn
It looks like CMA goes into U216 (74F841,...

It looks like CMA goes into U216 (74F841, transparent latch -listed as obsolete everywhere), after that the signals is named "DRA, and those goes into Alice.

So I guess it's Alice that do the...
Forum: support.Hardware 24 April 2018, 16:49
Replies: 43
Views: 1,978
Posted By glenn
daedalus: Hmm, A20 ? the SIMM's only have CMA0-9...

daedalus: Hmm, A20 ? the SIMM's only have CMA0-9 (and MA0-9 on fastram), and RAS/CAS, I'm not sure hoiw this is "decoded" ?

CMA goes into U216 (74F841) and then continue to Alice.

But logical,...
Forum: support.Hardware 24 April 2018, 14:27
Replies: 43
Views: 1,978
Posted By glenn
Hooverphonique: Aha, probably diagROM's do...

Hooverphonique:

Aha, probably diagROM's do the same, I wonder why it "give up" after exactly 1024K.. or maybe it just look for either 1M or 2M ? ..Most of the data signals is the same as fastmem...
Forum: support.Hardware 24 April 2018, 12:50
Replies: 43
Views: 1,978
Posted By glenn
It is a 2M SIMM, and it show up as 2m in other...

It is a 2M SIMM, and it show up as 2m in other A4000 motherboards.

It would be nice how the machine find out the amount of memory, does it just try to read it until it end ? some ID in the SIMM ?...
Forum: support.Hardware 24 April 2018, 12:00
Replies: 43
Views: 1,978
Posted By glenn
A4000 repair troubles only 1M chipmem

Some weeks ago I tried to start my "Main" A4000, in short it didn't start, at all..

I did all the obvious, removed all (7) expansion cards, downgraded from the 060 to a known working original...
Forum: support.Hardware 28 November 2016, 11:50
Replies: 8
Views: 1,059
Posted By glenn
Best wold probably be using a soundcard instead,...

Best wold probably be using a soundcard instead, for example the Repulse ?

(I was SO close buying one of those but never did it..)
Forum: support.Hardware 01 September 2016, 16:28
Replies: 45
Views: 3,831
Posted By glenn
No, I have opened a virgin (previously unopened)...

No, I have opened a virgin (previously unopened) german A1200 and it sure had the shield.

But I agree that it's not of much use, I always remove it on A1200/500/600.


And the ESD myth...
Forum: support.Hardware 22 July 2016, 15:45
Replies: 16
Views: 2,129
Posted By glenn
But all of those softwares is not that useful on...

But all of those softwares is not that useful on a 68EC020, FPU or not..

Also, using raytracers on the Amiga today is not very useful at all, I have used Real3D a lot in my days (1.x to 3.x), but...
Forum: support.Hardware 22 July 2016, 15:41
Replies: 10
Views: 696
Posted By glenn
the jacks on the motherboard have a function to...

the jacks on the motherboard have a function to mix both channels if only one connector is connected, I guess that is what Jope is suggesting to be the problem, and I would also look there first.
Forum: support.Hardware 21 July 2016, 09:03
Replies: 13
Views: 1,020
Posted By glenn
Another note is that I think there are like...

Another note is that I think there are like six(?) different versions of the 8833, so two Mk1 or two mk2 isn't necessarily the same monitor under the hood.
Forum: support.Hardware 21 July 2016, 08:59
Replies: 6
Views: 729
Posted By glenn
Depends a lot on what you are doing, on my "main"...

Depends a lot on what you are doing, on my "main" A4000 I have 144M fastmem (128 on the 060-card and 16 on MB) and I have ran out of mem many times.

First of all I had loong uptimes, and programs...
Forum: support.Hardware 20 July 2016, 14:16
Replies: 16
Views: 2,129
Posted By glenn
As Alexh is pointing out, you have to use a PGA...

As Alexh is pointing out, you have to use a PGA FPU, that means it have to be a RC or RP version, RC = PGA ceramic, RP = PGA plastic (FN = PLCC)


68882 is indeed much faster than 68881 at the...
Forum: support.Hardware 12 July 2016, 13:39
Replies: 12
Views: 1,022
Posted By glenn
I would also say its better to dump the XT drive,...

I would also say its better to dump the XT drive, they are crap even when they work :)

Anyway, does it spin up ? I have had old hdd's that report to the scsi-chain but you cannot save...
Forum: support.Hardware 01 July 2016, 16:26
Replies: 25
Views: 1,446
Posted By glenn
No, it came with CGX3 new. At least mine...

No, it came with CGX3 new.

At least mine did.



And you have a monitor connected BOTH at the Amiga video connector AND the gfx card connector ?

Are you sure that the screenmode you...
Forum: support.Hardware 28 June 2016, 13:18
Replies: 11
Views: 1,522
Posted By glenn
I have recived MOSFET's that obviously where...

I have recived MOSFET's that obviously where chaper variants with higher RDSon and relabeled.

They worked, but got very hot, and measuring the resistance made it clear that they where way out of...
Forum: support.Hardware 23 June 2016, 10:00
Replies: 50
Views: 6,948
Posted By glenn
My prolific adapter (probably fake since it was...

My prolific adapter (probably fake since it was so cheap) show up corerectly, and works fine with cortex, it just get stuck after 49% with HxC..

Hope I get my FTDI adapter soon so I can try it.
Forum: support.Hardware 23 June 2016, 09:56
Replies: 18
Views: 2,143
Posted By glenn
There is also the question about the capslock...

There is also the question about the capslock color :)

My first A500 (that I still own) have all red LED's (even capslock), and it also have a C= button instead of left Amiga button. (This means...
Forum: support.Hardware 21 June 2016, 10:02
Replies: 22
Views: 1,767
Posted By glenn
I would say the really big enemy is the batteries...

I would say the really big enemy is the batteries in some models, it have destroyed many motherboards..

Personally I say there is NO REASON to replace fully working capacitors, sure, it is a...
Forum: support.Hardware 20 June 2016, 13:47
Replies: 130
Views: 12,851
Posted By glenn
Fairly high yes. How many different cards have...

Fairly high yes. How many different cards have YOU tested it on ?

I have a lot of Amigas with different accelerators, I have used whdload on most of those, there is no such thing as "everything...
Forum: Retrogaming General Discussion 20 June 2016, 13:22
Replies: 65
Views: 4,981
Posted By glenn
Some used the buttons, some didn't. ..But many...

Some used the buttons, some didn't. ..But many games just didn't need more than 2 buttons anyway.


I agree to most people here that the original pad is crap, I quickly got myself a competition...
Forum: support.Hardware 20 June 2016, 13:06
Replies: 50
Views: 6,948
Posted By glenn
Uhm, that is what this thread is about already ? ...

Uhm, that is what this thread is about already ?

His username is "Jeff" btw.
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