Change WM-F701c tuner region?

Discussion in 'Tech talk' started by Limono, Apr 5, 2019.

  1. Limono

    Limono New Member

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    So after replacing the long dead button cell battery on my F701c, the radio seems to have switched to default Japan settings, since I can't go past 90 MHz. I've found how to change the region on other models (WM-FX822 for example) but those methods doesn't seem to work on the WM-F701c.

    I've found the manual but it doesn't say anything about region change. It doesn't bother me that much but I'd like to listen to European radio from time to time... Thanks in advance!
     
  2. Limono

    Limono New Member

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    Now that I think of it, I could try with the methods for other models and see if any of them works. So far, the one I found for the FX822 doesn't work... But essentially, any Walkman with a digital tuner might do the trick. Any ideas?
     
  3. stef

    stef Member

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    Hi
    I have the same problem I tried all modifications but it is impossible.someone tell me that it is possible to change the situation with a new battery because this battery give tension directly to ic.
    Otherwise it is impossible to change the component configuration on the circuit
     
  4. rcpilot23

    rcpilot23 Active Member

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    I have the same problem cant find any info either
     
  5. stef

    stef Member

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    Perhaps I will have info on tapeheads I will inform you ASAP
     
  6. Viktor

    Viktor New Member

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    Take out main battery and backup battery from cassette cover.
    Press and hold Radio ON and Tun(+)
    Insert main battery
    release Radio On and Tun (+)
    Radio switched on 87,5 mhz
    Insert backup battery
     
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  7. rcpilot23

    rcpilot23 Active Member

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    Thanks Viktor I will try that today.
     
  8. rcpilot23

    rcpilot23 Active Member

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    Thanks heaps Viktor that worked with my F701C

    now tunes 88 to 108 Mhz

    Your a legend !!!!!!!!!!!
     
  9. Raul

    Raul Active Member

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    What exactly is Tun(+). I tried Scan +, I've tried Preset Tune button with Radio On and nothing. If I press them together radio doesn't start. It starts only when I push radio off, then Radio on.
    Could anyone help?

    Ok, at last. It's scan+ on Japanese F701. It wont turn radio, it will switch to different FM. After that you turn radio off and on and it's set to EU.
     
    Last edited: Oct 30, 2020
  10. jean-philippe971

    jean-philippe971 New Member

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    Hello, i update this talk. I've tried to switch my F702. But don't work. I press Scan + and Radio ON, i insert main battery, nothing on the screen. I release buttons still nothing. When i power ON the radio it still on Janpan frequency. Can you help me? thanks
     
  11. Raul

    Raul Active Member

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    Did you remove backup battery?
     
  12. jean-philippe971

    jean-philippe971 New Member

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    Yes, i remove it. When should I submit it?
     
  13. Raul

    Raul Active Member

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    First - you need to remove both batteries. I would live it at that for 5 minutes. Now the hardest part -ask someone for help - somebody who will push gum battery when time comes.
    Keep pushing Tun+ / Scan+ and push Radio On. Someone needs to push gum battery. Keep pushing for a second or two.
    It should power on and maybe show you US/EU bands. I tried many times and at after that it turned ok.
    It is pain in the a.., but when it will turn on just make sure you insert new, best possible CR battery. And preferably dont leave it with depleted gum battery in. Change for charged one. If you have battery box, I would have it inserted with AA battery too.
     
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  14. stef

    stef Member

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    hi
    the only possibilities is to take the fm board ( difficult ma possible) and change the position of a component. I tried and the board working with eu channels. If you want i can give you my board because my f701c has the flat cable broken and i used the componet to repair other 701c
    ps i tried all possibilities explained before but with some board the only possibility is to change the position of a compnent
     
  15. jean-philippe971

    jean-philippe971 New Member

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    Hello, thanks Raul i finally succeeded. The only things it's the screen doesn't power on when en release buttons. but When i power on the radio after i see it's ok.
    I have another question , do you tried to clean buttons play, ff... there is a plastic on it, should we remove it before cleaning with the contact spray
     
  16. jean-philippe971

    jean-philippe971 New Member

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    Hello, i have a new problem when i playback in normal mode no problem but when i go to reverse mode the K7 turn in the other direction but the playback does not change direction, so it plays the track backwards
     
  17. Valentin

    Valentin Well-Known Member

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    Does the REV LED turn on when it switches to reverse mode ?
     
  18. jean-philippe971

    jean-philippe971 New Member

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  19. Valentin

    Valentin Well-Known Member

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    Recommend to clean the FWD/REV switch with contact cleaner (Kontakt 60). I've seen this to cause problems at times.
    It's located on the bottom PCB, you need to tilt the top PCB to get to it.
     
  20. jean-philippe971

    jean-philippe971 New Member

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    I have already tried this solution. all buttons work
     

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