Delco Bose AUX Input soldered connection...

[Benijeep]

And as I think further, the power defeat could NOT be as simple as re-routing the existing [switch] ground to the input jack ground, because it then would no longer be a switch, and the CD wouldn't play.

But POSSIBLY routing the CD switch POWER, THROUGH the input jack...

I need hands on. *&)^%@
???[/QUOTE]

OK, but it is grounded or not wire #1, where is it connected on the Radio head?

[Benijeep]

[QUOTE=Schrade;182159]Welcome onto the boards there Benijeep...

Is yours a Z? Or base model?


Thanks for the welcome,
This is my first Corvette, it is a Base 40th Ruby Red 1993. Sold my '50 Chevy for it, so were happy, (my son & I)
and thanks for the fast answer,
So just for asking, as in the picture with the switch and the welds, is 1 & 4 conected or is it a shadow of the ground on #1 (post#1)
On Post #3 can't see where the splice / connection is.

sorry for asking it may look simple when I get the radio apart, but as I see this you did a great job on the Post.
again Thanks
Ray

[Benijeep]

Originally Posted by Schrade

Hey, GRACIAS!
Now it's idiot proof... LOL.
Can't make a mistake now. Almost as color by numbers.
Thanks again, and for your quick replay.
So tomorrow to the work bench.

[scottfab]

I've not read this thread till now. I read it all.
I have a few comments.

1. The schematic on the mainboard clearly shows a balance control.
(either this schematic is of a different unit or our units may have a pot on the mainboard somewhere)

2. The idea that the old hardware is "crappy" is a fair assessment albeit harsh given it's design age. Hib can be harsh but I'm sure he meant not to be insulting. It's just that things have progressed. So far I find what we have as stock radio/amp etc adequate. I just am not too interested in the radio too much when I drive THIS CAR

3. The schematic in previous posts with give alterations has a few problems. the L and R end up getting swapped and the ground (as was mentioned) is missing on pin 1 of the added connector. Any battery powered unit (cell phone etc) will have problems getting a signal to the car. If a charger is plugged into the battery powered unit then ground is provided and would likely work. But this method can be dangerous to the portable unit as well as inject unwanted noise.

In no way meant to insult but just as a possible improvement I have altered that diagram. Here is my take on it. Note in BLUE is the added ground and the L side (purple) is maintained through out as is the R (green) .

If I can get a copy of the full schematic I may be able to come up with a way to safely power down the CD while the AUX is being used.

[-=Jeff=-]

Originally Posted by Schrade

Sorry to dig up an older thread, but do any of you have the full schematics for the radio head? mainly the PCB with the Volume/Bass/Treble controls..

if you do shoot me an email with them.. vettxtc@gmail.com

THANKS

[-=Jeff=-]

Schrade,

Yes I want the main board one.. do you have just the bit posted or the whole main board?

I would like the whole main board one if you have it

[Schrade]

Originally Posted by -=Jeff=-

Schrade,

Yes I want the main board one.. do you have just the bit posted or the whole main board?

I would like the whole main board one if you have it

I'll check and see if I have the rest of the schematic for the MAINboard - another computer.

Scott - I think I see what your saying about my RE-edited PhotoChop, with the green and red lines drawn.

I actually show a bridge across line 3, and line 4 in the harness interface. I accidentally deleted the schematic's ORIGINAL ground connection on # 4, which is a signal return for one of the channels.

I'll re-edit and re-post, as you have it, when I find if I have the rest of the mainboard schematic for Jeff there...


------------------------------------------
No luck Jeff - only 1 left of the 2 that I got from Bob at carstereohelp.com

he has 2 numbers 800 428 1909 407 830 0777

Both schematics that I got from him are here http://www.zr1.net/forum/showpost.ph...8&postcount=32

sorry I can't help more there..........

[scottfab]

Originally Posted by Schrade

....snip...
Scott - I think I see what your saying about my RE-edited PhotoChop, with the green and red lines drawn.

I actually show a bridge across line 3, and line 4 in the harness interface. I accidentally deleted the schematic's ORIGINAL ground connection on # 4, which is a signal return for one of the channels.

I'll re-edit and re-post, as you have it, when I find if I have the rest of the mainboard schematic for Jeff there...

I figured it had to be something like that because what you have in the car obviously works. Great contribution overall. It adds functionality without marring the front bezel. AND if you insert a copy of the modified circuit into the manual all the better for future owners.

Once sufficiently documented a potential kludge moves into a higher status, "documented modification". But of course that's just this engineer's opinion.

[dredgeguy]

Originally Posted by scottfab

I figured it had to be something like that because what you have in the car obviously works. Great contribution overall. It adds functionality without marring the front bezel. AND if you insert a copy of the modified circuit into the manual all the better for future owners.

Once sufficiently documented a potential kludge moves into a higher status, "documented modification". But of course that's just this engineer's opinion.

I wish I had the skills of all of you but that is not the case so I have to pay the pros. I had Dr. Don add the AUX input on my Bose and have it located in the center console. I did not want to put it on the radio face to keep it looking stock. Sounds good.

[-=Jeff=-]

Schrade,

any luck finding those schematics you had?

guy told told me to contact said he had nothing for me