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| IIsi Chime? VGA? |
Posted by: Aoresteen on 2011-07-18 10:51:43
I rescued a IIsi. It was missing the PRAM battery. Put in a new one, set it up and powered on. Nothing. Un plugged it, plugged it bac in. Powered on, the computer booted. 🙂 It's running 7.0.1 and has 5 MB RAM.
When I reboot or cold start it boots just fine BUT I get no chime. I didn't see a speaker inside the case. Did the IIsi came with a speaker?
Should I hear the power on chime?
Also, I have a Viewsonic VMACK-1 VGA adapter. I set it for 640x480 and sysnc= Seperate + composite. No output.
The manual is here:
http://dl.owneriq.net/6/6e453dfc-0d33-4f01-9fcc-c85300ecebf7.pdf
Any sugesstions as to what I shuld set it to to get video out toa VGA monitor?
Thanks!
Thanks!
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Posted by: Trash80toHP_Mini on 2011-07-18 12:21:33
Here's what works on mine:
640 x 480 x (up to 8 bit color) @ 67 Hz = Mac 13"-14" Fixed Resolution
832 x 625 x (up to 8 bit color) @ 75 Hz = Mac 16" Fixed Resolution
That's assuming you have a MultiScan CRT or LCD that works at those scan rates.
There should be a speaker in there, make sure it's hooked up and re-seat your RAM SIMMs if you hear bad noises thereafter! :approve:
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Posted by: Aoresteen on 2011-07-18 18:04:01
Found the speaker under the hard drive. The service manual is here:
http://tim.id.au/laptops/apple/legacy/macintosh_iisi.pdf
It does chime but the sound is very weak - I can barely hear it. I'l have to pull the board to see if the contacts are corroded.
Thanks!
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Posted by: LC_575 on 2011-07-18 20:50:08
The IIsi, due to it's design where the speaker is directly below something THAT VIBRATES A LOT (*cough* hard drive), will commonly have a faulty speaker. Check the solder points at the speaker's voice coil wires, and check the condition of the contacts at the motherboard end (in the IIsi said contacts simply touch the MB).
I have a Griffin Sync Adapter, which is supposed to separate the IIsi's Sync-on-Green video hardware, but all of my non-SoG monitors refuse to sync and display. Only my SoG display (an LG FlaTron W2043T) reliably syncs to the IIsi. I'd get a monitor that natively supports SoG-it seems that many Flatron's do, so I'd start there. You can probably get one on eBay for $25. Or just get an Apple HiRes RGB display.
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Posted by: Aoresteen on 2011-07-19 08:18:09
Thanks! Will check the speaker contacts.
I have the Apple Hi-Res but wanted a larger LCD disply. I guess I'll have to get a NuBus video card for it. Or the Apple Portait monitor :b&w:
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Posted by: Trash80toHP_Mini on 2011-07-19 13:47:08
Check out this thread if you haven't as yet: IIsiColorPivotII_PDS_Card_HackProjectâ„¢
Also, check out LC575"s thread: Who has an Asante MacCon?
By using a NuBus VidCard you'll be giving up Ethernet. 75Hz is a fairly common scan rate for LCDs, I haven't tested that yet, but you can't beat the price of the Radius Color Pivot II IIsi Cards from macmetex. Nab one before this auction ends . . . he'll very likely be raising the price on the next batch! [😉] ]'>
I snagged a SuperMac Spectrum/8si v 1.0 PDS Card from one of his "buy it nows" and that'd work well plugged into a PDS NIC, once we get the MacCon jumper settings nailed down.
The MacCon plugs into the SuperMac Spectrum/8si v 1.0 PDS Card just fine, but not the other way around due to physical interference.
I'm really likin' IIsi hackin' a lot! [😀] ]'>
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Posted by: Trash80toHP_Mini on 2011-07-19 21:58:30
New info rose to the surface in the Who has an Asante MacCon? thread: we now have linkage to the MacCon Docs.pdf which tell how to set the IIsi & Se/30 versions of that NIC up with the Radius Color Pivot II IIsi VidCards and some SuperMac IIsi PDS VidCards.
Things are coming together nicely! :approve:
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