A4000T 060 needs help..

[Vlabguy1]

I

Framiga wrote:
Obviously if you don't have the 12v on the Zorro bus, the fault is more difficult to catch. (sorry but i don't know your skills about electronic repairs/restoring)

No worries..I got the skills..Im very comfortable working with circuit boards,  soldering etc.  and pretty handy with a multimeter..

I take it ..in chatting with everyone here..that this problem has not been seen or encountered before..or atleast by one who has read this post and the one I posted a while ago regarding this same problem.


I think I will see whats up with the 12V. on the Zorro bus..then next I will check the A/V module card , and I/O module card..for anything obvious..then will probably pop out the Mother Board..to do a close inspection of all chip and components..

[Vlabguy1]

I will def. check the MoBo...power connector..

Thanks..

[Vlabguy1]

X-ray wrote:
Definitely. I trusted them enough to send my mobo there, so don't worry about how they will treat your mobo. Just make sure you use a reliable postal method.

thanks for the info.. I hope I dont have to go that far..but I will if needed.
Oh..what kinda turn-around ..weeks, months..etc..

[Framiga]

OT

just noticed your Idek monitor! i have used one of the same series for years; a MF5121 (now dead.. fixed for 10 times at least)

[Vlabguy1]

I use the Idek for toaster/NTSC..stuff..but my main monitor ..ie for the CV64..is a big 21" Sony CRT..that sucka is heavy and huge!! looking to get a flat panel..if I get the machine running on the VC64 card again..Well Im not sure the CV64 can handle a flat panel..??

just noticed..my toaster/flyer system..is the random photo..lol  hehe
I love that

[Framiga]

i'm on a Dell 17" TFT currently without any problems (CVPPC and CV64 installed on both AmigaOS3.9 and MOS for PowerUP)

[Tomas]

Try the psu in your other box? Might be worth a shot even if multimeter tells you it outputs the proper voltages.

[Vlabguy1]

Framiga wrote:
i'm on a Dell 17" TFT currently without any problems (CVPPC and CV64 installed on both AmigaOS3.9 and MOS for PowerUP)

Very nice..ty..Would a Dell 19" work as well..I can prob borrow one from work just to test it out..see if I like ..

[Vlabguy1]

Tomas wrote:
Try the psu in your other box? Might be worth a shot even if multimeter tells you it outputs the proper voltages.

I might try that..however I did try a brand new PS..with the same results..

[Framiga]

17" and 19" (unfortunately) uses the same resolution (1280x1024)

You have to chose a 16 bit mode (due the 4MB only VideoRam of the CV64)

[Vlabguy1]

thanks..lets hope I get that far..with this A4000T..

[CLS2086]

Hi,
Keep your CRT, you'll be desapointed with LCD screen, which are only correct are their top resolutions...

[stopthegop]

Forgive me for stating the obvious... But in reading through this thread its not clear whether you tried using a different monitor on the 'faulty' machine?    I'm sure you did, but figure it worth mentioning.  Just a tunnel-vision check.    :lol:  

I know I'm guilty of it on occasion;  focusing in on technical minutia, possibly overlooking something really simnple?  Like - "It won't work in 'O-F-F' mode" (military joke..).  

One of my co-workers who is extremely smart gets caught in that trap all the time.  If you ask him what time it is, he'll tell you how to build a watch.   :lol:

[Vlabguy1]

Yes I tried the monitor with other systems..and it works..

[Vlabguy1]

quenthal wrote:
Does this happen with both your A4000Ts? Did you try the stuff from this thread?

That thead and this one pertain to the same 4000T..Im just now getting round to really get this thing fixed..Well upon taking it apart..I found a few interesting things ..with several items..First the
Ports Module seems to have a few issues..witht the Caps..green fuzz around the solder pad..to me does not seem normal..I will post pics..That makes sense as I had a 12V loss at the serial port.  MMMM..where can I get one of those..
Second the A/V module..same thing with some of the caps..which..I believe to
be related to the sound part of that board as I was able to use my Idek...Need to get one of those as well..
Third, and this is without taking the whole MoBo out.  After I took my CV64, and my Sunrize AD516 boards out..I fully inspected the Zorro slots..and notice two caps..that had the same green fuzz..maybe they are leaking or
just bad??  ...chances are there are more caps etc. that need attention that
I cannot see at this point.  :-(.
I well post macro pics of everything that I think is not "normal"..and post them.
So this Amiga repair center..do they have a good reputation??  Do they have a web site..How long do things usually take to fix..??

Well thats the latest..

Thanks everyone..

[Vlabguy1]

Hello again..I just posted some pics showing the bad news..I know it takes a bit for them to actually post on the site..but they will be there soon enough..

Looks like I have my work cut out for me..If I get too deep I may have to send
my board in for repair!!  
:-(
Oh well such as life right..and OH so worth it!!

Thanks
Rich