Jump to content
Minuit

What Minuit knows about stock Jeep radios

Recommended Posts

Post everything you have, please.  Who knows when that info may be valuable to somebody. 

Share this post


Link to post
Share on other sites

Alright, I'll post what I have. I don't have this info for all models and some is incomplete. The source is typically the original service manual for the radios.

 

Tuner Sensitivity, lower is better. Unit: dB µV

RX-170: 10

RX-161: 10

RX-135: 10

RX-141: 10

3238861: 14 AM / 15 FM

 

Signal-Noise Ratio, higher is better. Unit: dB

RX-170: 50 AM, 60 FM, 46 Tape

RX-161: 45 AM, 50 FM, 46 Tape

RX-135: 45 AM, 50 FM, 46 Tape

RX-141: 45 AM, 50 FM, 46 Tape

3238861: 52 AM, 54 FM, 44 Tape

 

Stereo Separation, higher is better. Unit: dB

RX-170: 35 FM, 40 Tape

RX-161: 30 FM, 40 Tape

RX-135: 30 FM, 40 Tape

RX-141: 30 FM, 40 Tape

3238861: 30 FM, 40 Tape

 

Weight, lb

RX-170: 4.6 lb

RX-161: 4.4 lb

RX-135: 4 lb

RX-141: 4.4 lb

3238861: 4.8 lb (jesus)

 

Cassette Rewind/FF Time (60 minute tape)

RX-170: 90 sec.

RX-161:  75 sec.

RX-135: 100 sec.

RX-141: 75 sec.

3238861: 75 sec.

 

Cassette Wow and Flutter: 0.2% for all

 

Cassette Cross-Talk: 44 dB for all

 

Cassette Frequency Response: 50Hz to 12kHz for all

 

 

Share this post


Link to post
Share on other sites

On the topic of weird stuff...

cSaR0xNl.jpg

These show up fairly rarely on here, usually accompanied by the amplifier module and the sentence "what the hell is this?"

 

Answer: Mitsubishi designation CZ-150, it's half of the highest-level audio system in the 1988-1992 Eagle Premier. And now I have one.

 

So what is it really? It's an AM-FM tuner, preamplifier, and cassette player. The radio tuner has some functions over the standard models such as National Semiconductor's DNR, the same noise reduction system used in the AMC RX-135. It also has scanning functionality as well as Dolby for the tape deck (which is exactly the same module used in the RX-170)

 

Since it's not designed to work on its own, it doesn't even have the ability to control the volume by itself. All of the other functions, including volume, balance/fade, and equalization are handled by a second DIN-sized amplifier/equalizer unit. I don't have one right now, but I may be getting one in the future to play with.

 

More importantly, it's exactly the same size and shape as the regular XJ and MJ radios. Here it is with an XJ bracket on it to prove it.

PEcVhrpl.jpg

 

Even better, I have the service manual!

A5x9Xfkl.jpg

It's very thick, much thicker than any other radio service manual I've ever had. Much like the mainstream Jeep units, these were unusually well-built and fairly sophisticated for a car audio deck of their time. There are a lot of things going on in this unit, and a lot of parts inside. I'll make a scanned version of this service manual available freely at some point in the future.

 

So what am I going to do with it? Fix it if it needs fixing, and put it in my truck of course. And I plan to document the entire process. I have a basic plan formulated in my head, but it'll take a while to put the pieces together in practice.

Share this post


Link to post
Share on other sites

It works!

1JwKuHEl.jpg

The DIN cable leads to a header on one of the circuit boards. The service manual has a pinout for this header, and so it's a relatively easy job to backprobe the connector to apply power for testing purposes. It runs on a standard 12V supply from the amplifier module and draws around 0.5A at idle.

 

As a side note, it uses the same display and many other components as the RX-170, which in my opinion is one of the best radios of the entire 1984-1996 era. If you shine a light into the RX-170 (and maybe the later displays too) you can see the segment for the DNR function, which is used only on this model.

Share this post


Link to post
Share on other sites

Hi There!

 

My uncle just gave me his 1987 AMC Cherokee and I couldn't be more excited about it.  It's generally in very good condition, but unfortunately it has an aftermarket CD player.  I'd love to replace that with an original.  Ideally I'd love to add a bluetooth mod to it but aux alone would do.  

 

If anyone here has any leads on where I could procure one It'd be much appreciated.  

 

Thanks so much!

Danny

Share this post


Link to post
Share on other sites

 

 

8 minutes ago, pabitas said:

Hi There!

 

My uncle just gave me his 1987 AMC Cherokee and I couldn't be more excited about it.  It's generally in very good condition, but unfortunately it has an aftermarket CD player.  I'd love to replace that with an original.  Ideally I'd love to add a bluetooth mod to it but aux alone would do.  

 

If anyone here has any leads on where I could procure one It'd be much appreciated.  

 

Thanks so much!

Danny

 

 

Minuit sells them.  just send him a message :L: 

Share this post


Link to post
Share on other sites

YOU ROCK.  Just did. Thank you so much!  While I'm at it, do you know of a good place to get other original parts?  I need to fix the center console armrest and the driver seat as well :)

Share this post


Link to post
Share on other sites

as soon as you hit 10 posts, the classifieds will open up to you. :L: 

 

also, ebay and rockauto.com are decent.  car-part.com can help with junkyard searches.

Share this post


Link to post
Share on other sites

You may know about the Eagle Premier's CZ-150 component audio system that I'll eventually be putting half of into my truck. You may not know that there's an AMC equivalent, which to my knowledge was only found in the very high trim Renault cars for '86 and '87, the CZ-145. Here's one NOS on eBay. 

 

https://www.ebay.com/itm/1980s-Jeep-AM-FM-cassette-radio-Stereo-AMC-eagle-Wagoner-oem-nos/273800407175

 

This is probably the rarest and weirdest thing you're likely to see in this thread. I have never seen one for sale on eBay before this one.

Share this post


Link to post
Share on other sites

Y4YFthE.gif

 

 

oh the things I would collect if I had disposable income...  :roflmao:

Share this post


Link to post
Share on other sites
Posted (edited)

I have a Chrysler radio with a date code of 1672. It has a cassette dor that says Jeep. The model # is 82201470 and the Serial # is A8700104. Product No. (CE-8649EXI).  It is a pull out style unit that slides into an Anti Theft chassis
It is brand new in the box. I am trying to find out what year and make the Radio/Chassis combination fits. The owners manual calls it a stereo cassette receiver with an anti-theft removable chassis
The volume button is on the lower left corner, with small bass and treble "pop out" buttons above. Just to the right of those is a Square Display Screen. Moving to the right of the screen is the "Jeep Auto Reverse" cassette door, with the push button controls below it. I can not even find a Jeep unit that looks like this anywhere online - I'm stumped.
The original box with the original Mopar Sticker has the copyright year of 1991 on it, so I imagine it is close to that year. I can't figure out what year and model Jeep that Chrysler made this particular Cassis/Radio combination for. Any Ideas?

B778CF80-E7B4-430C-A631-2C89E8ED8EE2.jpeg

442A9CD2-07B5-4478-BB7F-553851EA3215.jpeg

8AA59BE5-88EA-42C6-B2E6-20ECB4F74DA9.jpeg

BE9BFDAB-2642-4662-9FCD-1BA520B8BD2D.jpeg

F63D18B5-751A-4D12-BAFA-43BD134FF115.jpeg

Edited by Yonks55
I wanted to add pictures to help with the description of the radio

Share this post


Link to post
Share on other sites
On 5/7/2019 at 1:16 PM, Yonks55 said:

I have a Chrysler radio with a date code of 1672. It has a cassette dor that says Jeep. The model # is 82201470 and the Serial # is A8700104. Product No. (CE-8649EXI).  It is a pull out style unit that slides into an Anti Theft chassis
It is brand new in the box. I am trying to find out what year and make the Radio/Chassis combination fits. The owners manual calls it a stereo cassette receiver with an anti-theft removable chassis
The volume button is on the lower left corner, with small bass and treble "pop out" buttons above. Just to the right of those is a Square Display Screen. Moving to the right of the screen is the "Jeep Auto Reverse" cassette door, with the push button controls below it. I can not even find a Jeep unit that looks like this anywhere online - I'm stumped.
The original box with the original Mopar Sticker has the copyright year of 1991 on it, so I imagine it is close to that year. I can't figure out what year and model Jeep that Chrysler made this particular Cassis/Radio combination for. Any Ideas?

B778CF80-E7B4-430C-A631-2C89E8ED8EE2.jpeg

442A9CD2-07B5-4478-BB7F-553851EA3215.jpeg

8AA59BE5-88EA-42C6-B2E6-20ECB4F74DA9.jpeg

BE9BFDAB-2642-4662-9FCD-1BA520B8BD2D.jpeg

F63D18B5-751A-4D12-BAFA-43BD134FF115.jpeg

I believe this is intended for a YJ Wrangler from '88 to '95. It has the Jeep/Eagle plug, and the YJ is the only Jeep I know of that they offered the pull-out radios for.

 

These were usually aftermarket units (Fujitsu seems to ring a bell) that Jeep rebranded as a Mopar accessory. Cool little find!

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


×
×
  • Create New...