As I'v posted many times befor I build serial and audio mod's.
As for the serial mod, it uses a max235 chip and a mini 10pin header that fits right on the serial header by the memory slot. On the other end is a 9pin male serial port. All you got to do is plug the mod into the io mother board, and drill a hole in the case or use a port on the case for the 9pin male adapter.
Ok first off just so ya'll know, many people who have built the TL082 audio mod insist that YOU CAN NOT DO MIDI MUSIC OUT. This is totaly false, but believable in a way. But its nothing more then a simple setting to correct the midi music on where its being directed. Then it will work just like the audio out. Full software control only and no hardware vol control via the front pannel. Downfall you say? NO not realy, this is because its acting like a real sound card and doing nothing more. Hehe you dont have a hardware vol control on your sound card in a big computer do ya ;). Well Due to having no hardware vol control only software this means that the audio is bypassing the onboard sound amp which would degrade the audio quality. Reason you ask? Simple you dont send an amplified sound source into a LINE level device, for example a set of self powerd speakers or a sterio. 1) you'll over power the device and could cause harm. 2) you could cause harm to the electronics via over sampling the power. Any question's class ???? ;)
The audio mod takes a little more work. I mean this litteraly (very little work). For right now this is only going to work on the yamaha sound chip but with in a week or 2 I should have some one testing a demo audio mod for a v5 with the NON yamaha sound chip.
But as for the step's, it's to install the mod are very easy:
solder 4 wires to certian points on the mother board
Hot glue the wires in place
mount and hotglue or what ever the audio mod main unit
drill a hole in the case somehwere and mount the audio jack. (JUST FYI, I USE A $2 AUDIO JACK THAT HAS SPRING LOADED CONTACTS) This means that the chances of the audio jack EVER wearing out or having a bad connection over time and use are VERY VERY VERY slim. Ever noticed how your old walkman's jack started to go after a while and you lost sound in an ear or a speaker easly. This is caused by metal strips that are pressed into a shape. Then made into a jack. Downfall is simple. Metal is metal over time if it doesnt have strain relief its going to fail. This EXPENSIVE jack should prevent this problem.
I do have a working Line-in now too.
So just to recap:
solder 4 wires/hot glue in place, drill hole mount audio jacks for line in/out (7wires total if you require line-in). This is NOT a mic line sarry Still working on that one. Have not had time to trace down the lines to find an easy part to remove to disable the onboard mic with out killing the feed to the mixing chip, if there is even a feed into the mixing chip. As for the wireing thats easy.
Intrested email me
Over christmas I sold a grand total of 73 audio mod's and 30 serial mod's
What is every one doing with them?????
Oh yes one last tidbit I was informed of, email me on a nice deal on the mod's Lowering the cost price on me there for lowering the price on you a LOT.
Rember cruel world I should have a v5 audio out mod being tested with in a week or 2. And final design should be created shotrly after that.
Last bit of information, I'm debating having a bunch of IDE out mod's built. If I do have these built using them will be a snap. For a quick run down:
Me personaly i'm going to use a MINI 50pin external scsi connector. This means a NICE very small connector with locking hooks on it. also 50 contacts. 44 for the ide and 6pins left over for WHAT EVER. Though i'm going to use 3 of the wires for the LINE in from the CDROM (1402 6X LAPTOP cdrom). all youd have to do is dremel the hold for the connector and glue or screw it into place. on the inside of the io will be a 44pin header for the ide cable and a 6solderable pad's (the 50pin connector will have a mini breadboard with a 44pin jack on it. This is just bigenuff to fit on the board period.
Connect the opposit gender 50pin connector ot the one on the IO and you'v got your external IDE. if i get enuff intrest i may have a run of these made up.