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Radio - fixing and testing

katar83
Posts: 2932
Joined: Tue Aug 23, 2011 11:17 am
Location: Cambridge

Radio - fixing and testing

Postby katar83 » Sat Mar 01, 2014 9:03 pm

This is mainly for Naki pile of radios but its also a general idea on what brakes and how to fix it.

40 radio alpine AJ9200R can be bench tested, no need to have it plugged in the car all the time. To power it up connect 12V as per schematics below(12V and radio memory pin, next to it) and ground to the back of the radio(anywhere to case or bolt at the back). Speaker can also be connected and tested to each output.(all outer pins, each side +/-)

Image

Top row from left to right 6 5 4 _ _ 3 2 1
Bottom row left to right 14 13 12 11 10 9 8 7

Top line '91 / '92 MY showing wire colour and service
[Beneath the equivalent '93 / '94MY wiring] with obvious exceptions noted:-

1 - Red/white - LH front door speaker
[Slate/purple - LH front bass + LH front tweeter]

2 - Red/brown - LH rear door speaker
[Slate/red - LH front bass + LH front tweeter]

3 - Red/green - Common LH front & rear door speakers
[Not used]

4 - Light Green/black - Aerial via CPU
[Light Green/black - Aerial via CPU (pre- VIN 687219)]

5 - Red/light green - LH bass speaker
[Black/slate - LH rear bass + LH rear tweeter]

6 - Red/purple - LH bass speaker
[Pink/purple - LH rear bass + LH rear tweeter]

7 - Red/brown - RH front door speaker
[Slate/pink - RH front bass + RH front tweeter]

8 - Pink/yellow - RH rear door speaker
[Slate/orange - RH front bass + RH front tweeter]

9 - Pink/light green - Common, RH front and rear door speakers
[Not used (Purple/orange - telephone mute '94 MY)]

10 - Light green/orange - Ignition switched power
[Light Green/orange - Ignition switched power]

11 - Brown/white - Radio memory
[Brown/red - Radio memory]

12 - Red/green - Radio illumination
[Red/light green - centre console clock]

13 - Pink/red - RH bass speaker
[Black/white - RH rear bass + RH rear tweeter]

14 - Pink/orange - RH bass speaker
[Pink/green - RH rear bass + RH rear tweeter]


Here is another tip I found on internet recently:

Here is links configuration for car radio Jaguar AJ-9200R(Alpine)
1 2* 3 4* 5* 6

= code 2413

Apparently if you solder these(*), the above code should work fine. 300 radio is different, it comes with basic memory chip which can be easily read to find the code. Happy to help if anyone has any problems with these.

Radio generally fail in two ways, either a little 8-leg smd chip fails in which case nothing absolutely can be heard out of the speakers but other than that radio works fine.

Image

The chip in question is on the left side, just in front of the white plug with white and yellow wires
Other component that brakes is one or both amplifiers. These are big square components mounted and screwed to the back of the radio. If one side of the speakers fails and other work then one of these failed. Any werid noises with good speakers connected or volume significantly lower than normally out of the speakers will mean this chip is shot.

Image

The components in question are at the bottom of the above pic on each side.

Both the 8-leg smd chip and amps are easy to source and cheap to buy so well worth doing.

For the display issues - best to go to Mark topic: viewtopic.php?f=25&t=7436

Other than these issues there radios are build to last forever so never bin a radio even if its partially broken! :ugeek:
Last edited by katar83 on Sun Mar 02, 2014 2:25 am, edited 1 time in total.
1996, 3.2 SWB X300 - Finally a rust free daily driver :)
1997, 4.0 LWB X300 - Unlucky car.
1988, 3.6S XJS - Never ending restoration project.
1994, 3.2S X300 - Accident damaged, October 2015. Gone!
1994, 3.2S XJ40 - Long gone.

MagicDoormouse
Posts: 19916
Joined: Sun Apr 08, 2012 10:37 am

Re: Radio - fixing and testing

Postby MagicDoormouse » Sun Mar 02, 2014 1:54 am

Good post Katar well done Myzon!
1990 Sovereign (Brian)
1994 Sovereign Silver
1993 Daimler (Parkhouse)
1990 XJR Solent
1993 Daimler Double 6
1993 XJR Flamenco
1991 XJS V12
1976 Capri 3.0 V6

xjr-ant
Posts: 2552
Joined: Sat Jul 12, 2008 2:56 pm
Location: East Sussex

Re: Radio - fixing and testing

Postby xjr-ant » Sun Mar 02, 2014 1:22 pm

Good post thanks ive got a pile of these too to try and fix. Mainly no code & faulty tape drive though.
Various XJ40's and one X300.

XJ40-MARK
West Midlands Rep
Posts: 1112
Joined: Fri Aug 07, 2009 11:55 pm

Re: Radio - fixing and testing

Postby XJ40-MARK » Sun Mar 02, 2014 7:12 pm

brilliant and very handy `how to`, thanks katar.
given that ant has mentioned it, i thought this was as good a place to add this as any other katar, so hope you don`t mind.
credit for this should go to `paulajayne` really, as it was her post that guided me through doing my own, so all i`m doing is adding pictures to it.

this is reference to radios with no code.

if your handy with a soldering iron, this is an easy job.
if you look at the radio, on one side you will have these labels;

Image

if you run your finger over the larger label, at some point you will feel a dip in the label as there is a hole underneath it. if you cut this part of the label away or can peel the whole thing back, you will see a row of solders underneath, like this;

Image

now you need to remove the cover from the radio and find the solders that line up with that hole in the cover. these are actually numbered, from 1-6;

Image

they are basically 12 segments side by side, in rows of six and what you`ll notice, is that two or three of them are `bridged` together and this is what dictates the code.
so now, because you don`t have the code, you need to bridge all of these solders together, to in effect, give you a default code, of 6543.
and thats it, this will now be your code for that radio.
it is worth however, whilst the cover is off, in just checking some of the other solders as mentioned by katar and particularly my other post in reference to the poor/bad displays. many of them don`t need new solder on them, but very often just melting the existing solder and allowing it to harden again, creates a fresh, better conductive joint and thats all it needs.

xjr-ant
Posts: 2552
Joined: Sat Jul 12, 2008 2:56 pm
Location: East Sussex

Re: Radio - fixing and testing

Postby xjr-ant » Sun Mar 02, 2014 8:39 pm

I tried this on some but it didnt work :(. I bridged all of them left to right.
Various XJ40's and one X300.

katar83
Posts: 2932
Joined: Tue Aug 23, 2011 11:17 am
Location: Cambridge

Re: Radio - fixing and testing

Postby katar83 » Sun Mar 02, 2014 8:41 pm

Try this:
Here is links configuration for car radio Jaguar AJ-9200R(Alpine)
1 2* 3 4* 5* 6

= code 2413

* - soldered pad.
1996, 3.2 SWB X300 - Finally a rust free daily driver :)
1997, 4.0 LWB X300 - Unlucky car.
1988, 3.6S XJS - Never ending restoration project.
1994, 3.2S X300 - Accident damaged, October 2015. Gone!
1994, 3.2S XJ40 - Long gone.

Brake buster
Snr Member
Posts: 724
Joined: Sun Jul 03, 2016 8:18 pm
Location: Gloucester UK

Re: Radio - fixing and testing

Postby Brake buster » Sun Jan 14, 2018 3:42 pm

quick follow up to this,

my own 9200r developed a power fault, got a direct replacement , but it has 9100r innards, and wont work in my late 94 car ,

speaker wiring and amp conflict between the two models

any thoughts ?

BB
1994 3.2S in Morocco red and Doeskin/Ruby red interior
1989 V12 XJS White with Mulberry interior
2015 XF Sportbrake Luxury 2.2D Turbo in British Racing Green Metallic

babulio
Snr Member
Posts: 729
Joined: Thu Dec 02, 2010 7:43 pm
Location: Babulia

Re: Radio - fixing and testing

Postby babulio » Sun Jan 14, 2018 8:32 pm

Don't the later battery in boot cars have a straightforward 4 channel system (as opposed to band-limited 6 ch sys in battery under bonnet cars).

...so you could fit anything really?

If the grounds of the speakers are commoned try peeling the loom back from the radio plug to see if you can separate them - works on older cars. I see a lot of users complaining about failed radios on here - best to junk them IMO. If you have compact cassettes - throw them away! CDs go in the bin also. Go solid state storage. The future is now.
1995 Suzuki Baleno 1.6 GLX

baldilocks
Snr Member
Posts: 302
Joined: Tue Jun 24, 2014 9:44 am
Location: Invercargill, New Zealand

Re: Radio - fixing and testing

Postby baldilocks » Sun Jan 14, 2018 10:01 pm

Having fitted a new bluetooth head unit in a 94MY I can confirm its a simple 4 speaker setup in the doors, worked straight out of the box once I married up the pairs of speaker wires.
93 4.0 Sovereign, James, 687486, 94MY
A family of six Land Rover from a 1957 S1 to 1993 200TDI 110 CSW
1967 MGB GT

NO LONGER WITH ME
93 3.2 XJ6, Jerry, 94MY, went to daughter but gone from there as well as.
93 3.2 XJ6, parts supply, 94MY, scrapped

Brake buster
Snr Member
Posts: 724
Joined: Sun Jul 03, 2016 8:18 pm
Location: Gloucester UK

Re: Radio - fixing and testing

Postby Brake buster » Sun Jan 14, 2018 10:14 pm

babulio wrote:Don't the later battery in boot cars have a straightforward 4 channel system (as opposed to band-limited 6 ch sys in battery under bonnet cars).

...so you could fit anything really?

If the grounds of the speakers are commoned try peeling the loom back from the radio plug to see if you can separate them - works on older cars. I see a lot of users complaining about failed radios on here - best to junk them IMO. If you have compact cassettes - throw them away! CDs go in the bin also. Go solid state storage. The future is now.



the future is now .........in an old car that i want to keep period, and its actually an 8 speaker setup ,

its a piece of piss installing new stuff, but its not in keeping with the car...

BB
1994 3.2S in Morocco red and Doeskin/Ruby red interior
1989 V12 XJS White with Mulberry interior
2015 XF Sportbrake Luxury 2.2D Turbo in British Racing Green Metallic


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