Author Topic: Updating the Grundig I.C.E  (Read 28545 times)

melinx

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Updating the Grundig I.C.E
« on: November 05, 2009, 06:27:33 PM »
About a week ago, the 10 disc changer stopped working and I found that the disc was not rotating :(

Reviewing my options I decided that the fault could lie in the head unit, the control unit buried behind the dash, or the CD changer unit itself ::)]

Having bought 3 Grundig head units before getting one that worked properly (a wkc 4871) and even then I had to do some minor repairs to the 4871 and correct a manufacturing fault that was present on all 3 units ::) The 2 4870's suffered from the dreaded 'intermittent loss of FM' syndrome.

I had purchased the repair manual (circuit diagrams etc) for 15 only to find that it was no help in tracking down the intermittent fault and found that many of the microchips were no longer available anyway :'(

I was faced with the probability of the same process and cost for the CD unit, so I decided that the time had come to completely update the whole system :'(

I purchased a 'face off' Sony FM/MW/LW CD player CDX-GT430U head unit (100), one of the major reasons being that it had a front panel USB socket. (it also controls the aerial)

Removing the head unit and replacing the retaining frame with the one provided in the Sony kit, I plugged in the adaptor harness and plugs provided, only to find that no matter how I connected the permanent/switched live feed the head unit did not work without the ignition on :( (the Grundig head unit does !)

Returning to the specialist I.C.E place that I bought the Sony system from, I was told that they all worked that way and they would fix that for me (chargeable) or I could buy a different adaptor harness (20 >:()

Both options drew a 2 word reply >:(

I went home, connected both live and switched live 'bullet' connectors from the head unit into a 5 amp connector block and made a jumper from that with a 'bullet' connector on the end to the 'bullet' socket on the adaptor harness which carries the permanent live. ( total cost about 15p )

I can now use the system with the ignition off ;) the only downside I can see to this is that I have to remember to switch the system off when leaving the car (not difficult due to the bright L.E.D lighting on it) and it no longer 'beeps' at me to remind me to remove the 'face off' panel.

The Sony head unit has a built in graphic equaliser controlled by software and 2 auxiliary input Jack sockets (one on the front panel and one at the back of the unit as well as a mute input from your Mobile 'phone system.

There are also auxiliary outputs to feed an external system which removes crusted rust from your chassis and body panels :P

I no longer have the current drain that the disc changer put on the battery even when off (enough to flatten a fully charged new battery in about 10 days if the car is unused :( )

I bought a 1 Gigabyte USB memory stick from Maplin (7) that will hold the same amount of music from 12/14 hour long CD's and is about the size of a postage stamp :o
Pop that into the front panel USB socket and you have totally replaced the CD changer, control box and wiring with all their potential problems as well as having a bigger music storage capacity !

You can select the albums and tracks stored in the memory stick from the head unit controls and the name, orchestra and composer scrolls across the display.

The advances in technology in the 17 years since the 10 CD changer was 'state of the art' are astonishing, let alone the advances in the 50 years since I began in electronics :o

The only other job was to remove the CD changer carrier from the boot which took a couple of hours and releases a surprising amount of boot space !
« Last Edit: November 05, 2009, 11:16:41 PM by melinx »

doz

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Re: Updating the Grundig I.C.E
« Reply #1 on: November 05, 2009, 10:09:23 PM »
I gave up on the standard ice yonks ago. I now have in the LC a Pioneer AVIC-1XR system with ipod interface. My mummy was kind enough to buy me a ipod. Aren't mum's great. So now I have 6 disc in the boot,dvd/cd player up front,sat nav and ipod. All for 400 quid. Ya gotta love Ebay. Plans are now to fit the TV headrests I have so the kids can watch Peppa pig and I can still use the the sat nav up front. I may also put my sub in as it's sat doing nothing and the unit has high pass filter with sub control.

Be rude not to.  ;)
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therealeasterbunny

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Re: Updating the Grundig I.C.E
« Reply #2 on: November 08, 2009, 09:57:37 PM »
Hey Mr melinx,

1) have you still got the 4871 head unit?
2) do you have the pop out front bit?
3) does the pop out front bit's LCD display on it still light up?

If so, it is for sale - or more precisely can I buy the pop out front bit?

My pop out front bit's LCD backlight has broken so in winter I can't see what station /cd/track I'm on :(

Have fun!

Steve.
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melinx

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Re: Updating the Grundig I.C.E
« Reply #3 on: November 08, 2009, 11:47:16 PM »
I would prefer to keep the whole 4871 head unit intact since apart from the possible problem of it having a fault driving the cd player it is an excellent radio/tape unit ;)

It is probably just one of the 3 bulbs which are in series and illuminate the display that has gone open circuit in your display.

The following paragraph may be of help; it is an abstract from my 2006 post which followed your excellent information about the 4870 head unit.

"Another problem on the 4871 was that the display bulbs were burnt out !! I decided to replace these with high intensity green LED's in an attempt to improve the daylight visibility of the dark display fitted to both the 4870 c and 4871 variants.
I used 3 mm LED's ( the 5 mm will be much too big ) in the removeable display unit the 3 bulbs are in series and can be replaced by the LED's by slightly enlarging the hole in the PCB.
the PCB track must be cut and a 390 ohm resistor soldered across.
The results are a slight improvement in visibility but not as much as you may think because LED's give an intense beam rather than the diffuse light from the filament bulbs.
The whole display now lights up green which looks novel at night !! I suppose I will get used to it !!"

Let me know if you don't feel you can tackle the job ;)



Whippit

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Re: Updating the Grundig I.C.E
« Reply #4 on: November 09, 2009, 12:58:52 AM »
Hey Mr melinx,

1) have you still got the 4871 head unit?
2) do you have the pop out front bit?
3) does the pop out front bit's LCD display on it still light up?

If so, it is for sale - or more precisely can I buy the pop out front bit?

My pop out front bit's LCD backlight has broken so in winter I can't see what station /cd/track I'm on :(

Have fun!

Steve.
Got a spare one

melinx

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Re: Updating the Grundig I.C.E
« Reply #5 on: November 09, 2009, 08:59:25 AM »
You have a rare beastie then Whippit ;)

I've got a couple of 4870's but unfortunately the 4870 pop out panel doesn't fit the 4871 :(

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Re: Updating the Grundig I.C.E
« Reply #6 on: November 09, 2009, 09:47:06 AM »
I had better double check it LOL

therealeasterbunny

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Re: Updating the Grundig I.C.E
« Reply #7 on: November 10, 2009, 09:19:19 PM »
It is probably just one of the 3 bulbs which are in series and illuminate the display that has gone open circuit in your display.

The following paragraph may be of help...

Thanks melinx, Ive checked and they seem easy to get to. I'll give the old soldering iron a go this weekend.

Mr Whippit, 4870s and 4871s are not interchangeable unfortunately. I have a 4870 somewhere but its a different fascia fit.

Soldering some new LEDs should do the trick.

Cheers chaps.
« Last Edit: November 10, 2009, 09:23:17 PM by therealeasterbunny »
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melinx

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Re: Updating the Grundig I.C.E
« Reply #8 on: November 11, 2009, 09:28:25 AM »
I hope the job goes well ; you are going to have to bend the LED leads VERY close to the LED body and the use of needle nosed pliers is vital to avoid cracking the plastic and ruining the LED.

I hope I'm not 'teaching my granny to suck eggs' but you will also need to identify the positive feed in order to get the Led polarity correct ;)

I have searched extensively for filament bulbs suitable to replace the originals, I believe that they are underrun 6 volt bulbs in series.

The only ones I could find are in the link below and you would end up with 200 of them ::) but at a total price of 7 it may be worth it: The downside is that they come from China so there would be a delay in delivery :(

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=160377120711&ssPageName=STRK:MEWAX:VRI

You could of course use a meter to identify what is probably just one duff bulb and take one from your redundant 4870 panel ?
« Last Edit: November 11, 2009, 10:25:14 AM by melinx »

therealeasterbunny

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Re: Updating the Grundig I.C.E
« Reply #9 on: November 12, 2009, 04:07:37 PM »
Thanks for the tips melinx.

Driving in beastie today and wouldn't you know it, the CD changer seems to be having a spot of bother "SURFACE" and generally skipping / not playing.

Its been fine for years - what are the odds eh?

I have another couple of MCD10s in the garage (one from my dearly departed blue GL and another from my bro's black dippy RIP) so will dig out together and straight swap one ready for winter cruising.

Can't beat having spare parts around the house XD
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melinx

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Re: Updating the Grundig I.C.E
« Reply #10 on: November 13, 2009, 01:45:18 PM »
I have another couple of MCD10s in the garage

Lucky man ;) I certainly wouldn't have spent 100 replacing the Grundig ICE system if I'd had a viable spare CD player and was thus able to prove that the fault was in that alone :(

The 4871 is a really good head unit and I have a sneaking suspicion that it doesn't suffer the dreaded 'intermittent loss of FM' that many of the 4870's have ::)

Have you corrected the 'deliberate mistake' yet that will improve the FM sensitivity 10 fold ? I found that the 4871 lacked the aerial connection also :(

http://totalcarlton.com/forums/index.php/topic,1510.msg16297.html#msg16297
« Last Edit: November 13, 2009, 01:48:34 PM by melinx »

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Re: Updating the Grundig I.C.E
« Reply #11 on: November 13, 2009, 06:13:16 PM »
You should have asked, I have a spare CD unit as the head unit on mine bust trying to remove it

melinx

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Re: Updating the Grundig I.C.E
« Reply #12 on: November 13, 2009, 07:47:50 PM »
Serves me right for not asking :( I've grown so used to relying on my own resources that I've forgotten the help that the TC community can give :-[

I know what you mean about wrecking the head unit; I bent the retaining locksprings on mine by not using the correct extractor and even a Vauxhall 'expert' couldn't remove it !

He did tell me though that thieves will normally wreck the dash to get them out, so once I did manage to remove it, I replaced it without the locking catches !!

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Re: Updating the Grundig I.C.E
« Reply #13 on: November 13, 2009, 09:26:40 PM »
Is it possible to fit a fm modulator to a 4870 from another grundig unit? cant be much difference really ?

melinx

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Re: Updating the Grundig I.C.E
« Reply #14 on: November 14, 2009, 09:37:59 AM »
It's very easy to change the FM board, they just plug in, but I'm sure that the problem is somewhere on the main backplane :(

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Re: Updating the Grundig I.C.E
« Reply #15 on: November 14, 2009, 02:18:18 PM »
might be worth investigating :P

DevonGSi

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Re: Updating the Grundig I.C.E
« Reply #16 on: February 09, 2010, 09:40:21 PM »
Do you still have the changer box and cable? Want to get rid? I want to put my 10 disc out of my old dippy back into my gsi.

I already have 2 4780 with the plastic cases. 

No problem with FM on either.... odd

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Whippit

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Re: Updating the Grundig I.C.E
« Reply #17 on: February 09, 2010, 09:58:38 PM »
If Melinx hasnt then I have.............but its his post so he gets first bite ;)

DevonGSi

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Re: Updating the Grundig I.C.E
« Reply #18 on: February 09, 2010, 10:20:39 PM »
I meant the control box. Got the changer!
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melinx

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Re: Updating the Grundig I.C.E
« Reply #19 on: February 09, 2010, 10:27:56 PM »
If Whippit has the control box and cable then go for it ;)

Mine is still buried somewhere behind the dash and there is some suspicion as to whether it is a worker :-\

Whippit

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Re: Updating the Grundig I.C.E
« Reply #20 on: February 09, 2010, 11:05:12 PM »
deffo got one......just got to find it.

(Or I could just take the one out of the 2.6 LOL)

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Re: Updating the Grundig I.C.E
« Reply #21 on: December 07, 2010, 08:33:05 PM »
Car PC for the win, will be installing mine soon. So if anyone wants the factory Grundig with 10 disc changer let me know (display goes funny on HU though)
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DevonGSi

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Re: Updating the Grundig I.C.E
« Reply #22 on: December 07, 2010, 09:30:24 PM »
Yes please! I want to put one back in the GSI!
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Re: Updating the Grundig I.C.E
« Reply #23 on: December 07, 2010, 09:49:31 PM »
God this was ages ago LOL
Biff had my changer and control box I'm afraid.

DevonGSi

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Re: Updating the Grundig I.C.E
« Reply #24 on: December 07, 2010, 10:04:17 PM »
God this was ages ago LOL
Biff had my changer and control box I'm afraid.


Hey ho.... thats how it goes! :)
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