granprixweiss928

Here is my working QTS in my 81. My 81 has this listed as an option "digital radio".

VanD

Thanks! Looks like that's what I'm after....

Alex

VanD

Hope mine will look that good....Damn! Any idea if it's the same radio for Euro and US by '81-'82? I know my '78-79 have different units for US vs ROW...

kevinr

$750 at 928 International.

Cosmo Kramer

Guys were giving these away for next to nothing a few years ago. I saw a mint one sell on ebay for over $800! The demand for parts that keep these cars original is growing.

VanD

giddyup - did the "box" behind the faceplate of the QTS fit, or was it just the faceplate that did not fit? I have found a replacement faceplate but it has the holes for the quick release as well and therefore may still not fit:

http://www.teile.hirschbergs.se/sv/h...t-bamberg.html

But it still does not seem to be correct comparing to this photo of an original unit in a weissach:

giddyupp

VanD - Face plate is definitely the problem. I do not recall about the main body - I would have to go back and check. It needs to look exactly like the photo above. It is basically exactly the same width as the HVAC unit. Also note in the photo how the central warning bar curves nicely around both the radio and the HVAC. Looks like the one in the Link has the holes and will there for be too wide.

docmirror

The link takes you to a hosting site, where they ask for your name, addr, and email. Typically there is a big 'download' button that will send you the info they say they have archived. Most of the time, this is simply a method for gathering email accts that they can sell to aggregators to spam a person. Rarely do they actually offer the data that you need. I have no idea if this radio museum place really has the schematic or not, and I'm not willing to take a risk.

If you have an email that you'd like to use, and get the schematic, I'd be happy to look at it and see what the issue might be.

Commercial radios like this often have a custom designed Application Specific Integrated Circuit which has been built to spec for the receiver section or the power section. They cannot be replicated easily or cheaply, and if it's the power amp section, it's usually a dual amp in a stereo system. There aren't any discrete components that can't be replaced but the ASIC type components, once they are crapped out, that's the end of that, unless there is a large enough request for the ASIC builder to start up another run of production. The probability of that happening in this narrow market situation is highly unlikely.

One could use a group of discrete components to re-make the functions of the ASIC, but by the time the design is made, and built, and tested, and installed - it's a lot of hours. Which is money. From the mechanical world, think of a metal fitter using an English wheel and tap hammers with a set of dollies to remake a pontoon fender for a classic car from scratch.

VanD

That was my impression as well...wonder if anyone knows the correct part number and if it's available somewhere, somehow....

granprixweiss928

If your looking for an early Blaupunkt deck, Parts Heaven in Hayward CA had a few in their display case.

Not these QTS models, but the kind that were in the S4.

Jeff Bowlsby

Roger, do you still have a good quality QTS in stock for a 81 available? I would be interested in it even if not functional as long as it all looks correct and is complete. Let me know.

VanD

I found the correct faceplate for the 928 in another thread that should allow the unit to fit: the part number is: 928645913000

post #12 in this thread for pic: https://rennlist.com/forums/928-foru...-new-home.html