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Macintosh Portable M5120 Repairs

techknight

Well-known member
umm no, the output from that connector is digital. it requires the correct digital to analog converter to drive anything analog. 

 

pfoff

Member
Yeah, I recaped my portable successfully. It runs great now!! I only have to remaining issues.

The first one is, that I got a rom card and a RAM expansion card with the machine.

Now I can't get neither of them to work!-( I attach pictures so someone might be able to tell it they are the right ones and how to set the dip switches. I only found docu for the jumpers on some system, but they don't seem to match, if I select external rom, it won't boot at all!-( And the memory is always 1M, no matter if the card is inserted or not.

Second is a dark small corner on the display. It tends to get bigger, when I use it. Maybe even the display should require some recapping service?

Great machine, it was really hard to recap it, but it runs great now, with 1m of ram, though....

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techknight

Well-known member
your display is shot, it will need replaced. it is known as tunnel vision. It is RARE on the Portable, but it can and does happen. 

Both of those cards are RAM cards, and they area both designed for the backlit model. 

 

pfoff

Member
So, I'd trade those Ram cards, I have no Portable with backlit!-(( Need Ram upgrades for my M5120 than, anybody out there?

I have a problem with mine. It runs flwalessly after recapping, but not of the battery. It charges the battery, but does not use the power of it to run. Only runs with ac connected.

Any ideas? I will have to take it apart and look after that. Man that machine is really uncommon in many aspects. Love it. This's to(or from) the crazy ones! ;) )

Really no way to reactivate the tunneled screen? There doesn't seem to be spare screens available.

Thanks for all the help here!

 

pfoff

Member
Ok, great info, will check that!

Now I have a strange problem. The machine boots only with ac attached. The battery is well charged, but as soon as I disconnect the wall plug it shuts down!?

WTH... Crazy lil beast, that one....

 

techknight

Well-known member
because the motherboard cant see the battery. Need to make sure that both red wires on that molex plug is seeing battery voltage. AC adapter removed. 

 

pfoff

Member
It weren't the cables, It's Fuse 1, shit...

I don't have one of those, seems to be 100mA FF, have to get one.

 
Last edited by a moderator:

godfatherq8

Member
someone apparently hasnt read just about EVERY other portable thread here.... 

IT NEEDS CAPS. CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.

Lets try again shall we... 

CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.CAPS.

Sorry. Maybe hopefully I get my point across. Oh BTW you DO NEED a good battery as well. the portable is not designed and WILL NOT properly run without a battery. 

Now that those 2 things are out of the way, any questions? 
what about the SMD cap do I need to change them to?

 
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