Rev 04 Board problem

9 posts / 0 new
Last post
Offline
Last seen: 2 years 1 month ago
Joined: Nov 24 2013 - 13:23
Posts: 226
Rev 04 Board problem

Finally got my hands on a Rev 04 board for that Apple II case I bought.

http://www.ebay.com/itm/161202752483?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

For some bizarre reason, there was a very last minute flurry of activity over this board. It's not quite working, and has the Applesoft ROMs. I don't quite get what happened, but I didn't want to have to sit around for months again waiting for another to come up. I know transwarp sold one recently for $175 (working). I don't know what it was that made people go all loopy over this one. Schematics?

Anyway as you can see it has an issue. I don't know Apple repair stuff too well, but I'm guessing this is likely a ROM or RAM problem? Thoughts?

As it stands now I will have paid:

$600 for the Apple II Case (serial in the #30000s)
$255 for the Rev 04 board
$55 for a power supply.

I can't remember what the sale price on the last complete Rev 04 Apple II was, but I don't think it was too far from that? Think I did alrightish?

amauget's picture
Offline
Last seen: 3 days 14 hours ago
Joined: Jan 3 2011 - 11:34
Posts: 341
Re: Rev 04 Board problem

Hello,

For the hardware part, just wait to put your hands on the motherboard then reseat every IC in their sockets. This can do the trick... or not. If so, it's a quick and easy fix.

Here are a short list of recent Apple II Rev 1-4 sales :
- Apple II Plus with 1978 revision-1 motherboard, original box $270
- Apple II computer w two drivers $455
- Vintage Apple II ][ "Plus" A4114 008 with Apple III monitor + Disk II A2M0003 $350
- Apple II computer A2S1 -8878 w/ drives, games, monitor not plus integer WORKS!!! $1700

Offline
Last seen: 1 week 6 days ago
Joined: Oct 9 2011 - 12:54
Posts: 1353
Re: Rev 04 Board problem

I think only the $1700 one there was an Apple II, the rest were II plus.

I think he was trying to figure out if he's ahead of the game in his assembling a rev 4 Apple II vs buying one.

I can tell you my rev-4 Apple II cost me about 700 but was completely trashed. I had to fix the power supply, fix the datanetics keyboard, and refurbish the case and baseplate with fresh paint. Total cost was maybe another 300-400. It looks factory fresh. If it wasn't so bad it would have been cheaper and I could have just touched up the paint. The irony is it would have been my main Apple II since all the parts are original just refurbished, but then I found a good condition rev-0. Now it's my 2102 ram test machine with one of Mike Willegal's proto boards. I guess you could also say I'm still working on it a little. I repaired a 1977 Sony trinitron for it, but the trinitron needs a similar painting as it's kinda trashed cosmetically. But that is for another day as there is always another project on the horizon.

Cheers,
Corey

Offline
Last seen: 7 months 2 weeks ago
Joined: Jan 14 2011 - 22:41
Posts: 77
Re: Rev 04 Board problem

I was set to bid about 80, but you had greater need ... All totaled, you paid a fair price for the computer. Comesto about what I paid in 2012 for my working Apple II of the same era. I suspect prices about to jump for system, if it hasnt happened already. I

Offline
Last seen: 2 years 1 month ago
Joined: Nov 24 2013 - 13:23
Posts: 226
Re: Rev 04 Board problem

Thanks guys. I figured I had done 'alright'.

Part of that $600 for the case too was for the motherboard that came with it.. a totally custom job which, probably in and of itself isn't worth much.. but I'm wondering about the vintage ICs on it? Could those potentially be worth some money? Not the EPROMs but the RAM chips, etc. I don't plan on stripping or selling it, but if there's value to it as parts then that can be separated out from my A2S1-from-parts cost.

I have no idea if the keyboard even works.. this should be interesting. And I forgot -- i still have to buy Integer ROMs. Is $50 per kind of the prevailing rate for those? I see the Integer Basic cards are being more and more aggressively fought over.

transwarp II guy's picture
Offline
Last seen: 5 years 4 months ago
Joined: Mar 7 2013 - 08:55
Posts: 474
Re: Rev 04 Board problem

Thanks guys. I figured I had done 'alright'.

Part of that $600 for the case too was for the motherboard that came with it.. a totally custom job which, probably in and of itself isn't worth much.. but I'm wondering about the vintage ICs on it? Could those potentially be worth some money? Not the EPROMs but the RAM chips, etc. I don't plan on stripping or selling it, but if there's value to it as parts then that can be separated out from my A2S1-from-parts cost.

I have no idea if the keyboard even works.. this should be interesting. And I forgot -- i still have to buy Integer ROMs. Is $50 per kind of the prevailing rate for those? I see the Integer Basic cards are being more and more aggressively fought over.

Since originality isn't a factor here; I would switch the gold RAM from your clone mobo to the late model rev 4 you just purchased.

More than likely, the keyboard will need the keys pressed several hundred times *each* before smooth operation returns. That and using 99.95% Isopropyl Alcohol with an eye dropper will make them good as new:

http://www.ebay.com/itm/290741903232?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

Offline
Last seen: 2 years 1 month ago
Joined: Nov 24 2013 - 13:23
Posts: 226
Re: Rev 04 Board problem

Thanks! The gold ram -- is that just an aesthetic thing or is it actually better RAM? Did Rev 04 boards have gold ram at the beginning?

transwarp II guy's picture
Offline
Last seen: 5 years 4 months ago
Joined: Mar 7 2013 - 08:55
Posts: 474
Re: Rev 04 Board problem

Purely aesthetic; and also subjective. If you prefer the regular RAM's then keep them. I prefer the gold style RAM's, they seem like they are meant to be there to me personally.

Offline
Last seen: 2 years 1 month ago
Joined: Nov 24 2013 - 13:23
Posts: 226
Re: Rev 04 Board problem

Thanks.. are there any chips in that whole custom board and its cards that I should be careful to hang onto other than the memory tuat might be useful to the Apple hobby?

Log in or register to post comments