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  1. #1
    Join Date
    Jun 2005
    Location
    Warrington
    Posts
    160

    Default Grundig Radio Cassette - fixed

    This is just in case anyone else has the problem I had - I think it's fixed. Our 2001 450 came with the Grundig Radio Cassette, and it developed an intermittent fault whereby it just cut out. New speakers didn't help, and there was nothing obvious, no blown capacitors etc. Taking the cassette module out of the radio to look at the circuit board, I thought it was worth a try at leaving it out permanently, since I never play cassettes now, and it might be where the fault was... and the radio now works!

    I sometimes believe such devices are intelligent and deliberately wind up their owners. Before I did the fix above, I bought a used radio on eBay, which turned out to need a code. The seller refunded me but didn't want it back, so I set out to read the code, which is stored in the main processor chip, using the instructions on Evilution's site. After much faffing with previously retired XP computers, a Chinese programming device, solder, adaptors, error messages, all taking many hours, I finally managed to read the code - just as I concluded that the original radio, as above, was now working! So now I have a spare.

  2. #2
    Join Date
    Mar 2018
    Location
    sunderland
    Posts
    50

    Default Re: Grundig Radio Cassette - fixed

    I also have radios with lost codes luckily I already have an XP computer would you mind sharing your fix online with us.

  3. #3
    Join Date
    Sep 2016
    Location
    Burnley
    Posts
    622

    Default Re: Grundig Radio Cassette - fixed

    He said he got it from Evlution so it must be on there.

    FWIW it is not stored in the main processing chip it is stored in EEPROM.

    Lots of sites will tell you how to remove the small 8 pin DIL chip and read it then extract the PIN from it.

  4. #4
    Join Date
    Jul 2005
    Location
    over here
    Posts
    13,828

    Default Re: Grundig Radio Cassette - fixed

    Quote Originally Posted by Mjolinor View Post
    He said he got it from Evlution so it must be on there.

    FWIW it is not stored in the main processing chip it is stored in EEPROM.

    Lots of sites will tell you how to remove the small 8 pin DIL chip and read it then extract the PIN from it.
    Yeah thereís nothing special about it, or its method of storing the code, as you say, itís in a serial eeprom (a small 8 pin surface mount IC located close to main processor - itíll be a 24c08 or similar)

    For a reader https://www.ebay.co.uk/itm/24CXX-24L...kAAOSwuGhbvuPs
    Last edited by TheAlmostInvisibleMan; 5th August 2019 at 18:14.
    fq101.co.uk

  5. #5
    Join Date
    Jun 2005
    Location
    Lewes, East Sussex
    Posts
    593

    Default Re: Grundig Radio Cassette - fixed

    If you have to buy all the kit in order to get the code out of 1 radio - you might as well just go to a Merc dealer with your licence, V5 and radio serial number and get them to give you the code. Unless of course , you actually want to learn how to get the code from the radio for other reasons as well, like being able to do it for others? Or just for learning how?

    Each to their own, as they say.

    John

  6. #6
    Join Date
    Feb 2006
    Location
    Hampshire
    Posts
    1,105

    Default Re: Grundig Radio Cassette - fixed


  7. #7
    Join Date
    Jun 2005
    Location
    Aberdeenshire
    Posts
    2,079

    Default Re: Grundig Radio Cassette - fixed

    Quote Originally Posted by 137699 View Post
    Wrong link. OP does not have CD radio.

  8. #8
    Join Date
    Feb 2006
    Location
    Hampshire
    Posts
    1,105

    Default Re: Grundig Radio Cassette - fixed

    I wasn't replying to the OP - I was responding for Pocetsize.

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