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-   -   Stereo cassette player Toshiba KT-S1 upgrade (http://www.diyaudio.com/forums/analogue-source/223999-stereo-cassette-player-toshiba-kt-s1-upgrade.html)

Thunderalex75 20th November 2012 10:43 PM

Stereo cassette player Toshiba KT-S1 upgrade
 
Hi guys!
I want to upgrade my stereo cassette player Toshiba KT-S1.
What are your recommendations?
And I need a service manual or schematic.
Thank you!

oshifis 22nd November 2012 02:19 PM

I just can give my recommendations from experience of restoring my Sony TC-186SD cassette player, but these are general rules:

- Check the head. Replace if worn (make a recording of white noise before, so that you can reset the azimuth). Sometimes cleaning with a cotton bud is enough
- Clean and adjust the mechanics, especially the takeup reel force
- Replace the belts and the pinch roller
- Do not oil anything
- Check the smooth run of a cassette that has piano music recorded, run it several times end to end
- Replace the electrolytic capacitors in the PSU
- Also check if there is any trace of leaking capacitor (brown spot under the capacitor), and replace if necessary
- Do not turn any variable resistor inside (unless you have a service manual and the necessary instruments, plus a factory recorded adjustment cassette)

berrins 23rd June 2013 11:36 AM

Quote:

Originally Posted by oshifis (Post 3251871)
I just can give my recommendations from experience of restoring my Sony TC-186SD cassette player, but these are general rules:

- Check the head. Replace if worn (make a recording of white noise before, so that you can reset the azimuth). Sometimes cleaning with a cotton bud is enough
- Clean and adjust the mechanics, especially the takeup reel force
- Replace the belts and the pinch roller
- Do not oil anything
- Check the smooth run of a cassette that has piano music recorded, run it several times end to end
- Replace the electrolytic capacitors in the PSU
- Also check if there is any trace of leaking capacitor (brown spot under the capacitor), and replace if necessary
- Do not turn any variable resistor inside (unless you have a service manual and the necessary instruments, plus a factory recorded adjustment cassette)

http://www.diyaudio.com/forums/analo...ml#post3535697

Hello Friend, I have an old Akai dual well cassette deck. The playback and pb/rec heads are kinda worn out. It's not a GX model, so my Akai doesn't have Gx head. But I have a small collection of heads. Alps Gx and super metal heads, sendust, metal and many more.

Should I blindly go for the head with a matching impedance? The Alps glass head and super metal heads are not upto the impedance of original Akai heads. Sendust comes almost near the required impedance. The playback only head is 300+ ohms. Playback/record head is around 210 ohms. sendust head I have reaches around 290 ohms and one metal head is around 200 ohm.

Any help regarding this matter would be greatly appreciated. Thank you:)


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