UK Vintage Radio Repair and Restoration Powered By Google Custom Search Vintage Radio and TV Service Data

Go Back   UK Vintage Radio Repair and Restoration Discussion Forum > Specific Vintage Equipment > Vintage Tape (Audio), Cassette, Wire and Magnetic Disc Recorders and Players

Notices

Vintage Tape (Audio), Cassette, Wire and Magnetic Disc Recorders and Players Open-reel tape recorders, cassette recorders, 8-track players etc.

Reply
 
Thread Tools
Old 8th Apr 2023, 11:23 pm   #1
Michael Maurice
Moderator
 
Michael Maurice's Avatar
 
Join Date: Feb 2006
Location: Wembley, Middlesex
Posts: 7,114
Default Sony TC-KA6ES transport woes.

I am trying to repair this machine, I've replaced both belts. The problem is that when you play is selected, at first the tape heads dont fully move up to the tape, I then found that after a while I could get the heads to move up to the tape but the take up spool doesn't rotate.

I've tried cleaning the mode switch ( without dismantling it) by spraying switch cleaner in it but it hasn't cured it.

I've tried it with an empty cassette shell but again the take up spool doesn't rotate.

If the fault is the switch, where can I obtain one?
__________________
Forum Moderator

http://www.michaelmauricerepairs.co.uk/
Michael Maurice is offline   Reply With Quote
Old 9th Apr 2023, 9:20 am   #2
paulsherwin
Moderator
 
paulsherwin's Avatar
 
Join Date: Jun 2003
Location: Oxford, UK
Posts: 26,762
Default Re: Sony TC-KA6ES transport woes.

I don't know this deck at all well, but does it have mechanical 'soft touch' controls rather than electronic ones controlling solenoids? Such mechs are prone to jamming and erratic operation as the lubrication dries out, particularly if used in a dusty environment. The only real solution is to dismantle, clean, relube and reassemble the mech, which is a pig of a job as there will be many small parts and springs.
paulsherwin is online now   Reply With Quote
Old 9th Apr 2023, 12:32 pm   #3
Michael Maurice
Moderator
 
Michael Maurice's Avatar
 
Join Date: Feb 2006
Location: Wembley, Middlesex
Posts: 7,114
Default Re: Sony TC-KA6ES transport woes.

It does have touch controls, I donít think its mechanical.
__________________
Forum Moderator

http://www.michaelmauricerepairs.co.uk/
Michael Maurice is offline   Reply With Quote
Old 9th Apr 2023, 1:43 pm   #4
Red to black
Nonode
 
Red to black's Avatar
 
Join Date: Mar 2010
Location: Sunderland, Tyne and Wear, UK.
Posts: 2,408
Default Re: Sony TC-KA6ES transport woes.

It is electronically controlled, it uses 3 separate chains of resistors to sense which key has been pressed, although that doesn't really help you with your current problem.

This is a complicated machine with separate servo control for both the capstan and loading motors as well as electronic torque control for the reel drive motor.

The 12.4 volt line is common to both the loading and reel drive systems, the Capstan Servo/drive has its own 9.6v rail.
__________________
I don't suffer from Insanity. I enjoy every minute of it.
Red to black is offline   Reply With Quote
Reply

Thread Tools



All times are GMT +1. The time now is 6:20 pm.


All information and advice on this forum is subject to the WARNING AND DISCLAIMER located at https://www.vintage-radio.net/rules.html.
Failure to heed this warning may result in death or serious injury to yourself and/or others.


Powered by vBulletin®
Copyright ©2000 - 2023, vBulletin Solutions, Inc.
Copyright ©2002 - 2023, Paul Stenning.