UK Vintage Radio Repair and Restoration Powered By Google Custom Search Vintage Radio 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 11th May 2019, 1:02 pm   #1
barrywebb
Triode
 
Join Date: Nov 2013
Location: Redruth, Cornwall, UK.
Posts: 42
Default Akai GX-230D not picking up on silver sense foil.

Hi my Akai GX230D has stopped picking on the silver foil sensor, it used to pick it up and then go in reverse as it should but for some reason it's stopped sensing it and now keeps running until the end of the tape.

Barry
barrywebb is offline   Reply With Quote
Old 11th May 2019, 2:16 pm   #2
ms660
Dekatron
 
ms660's Avatar
 
Join Date: Apr 2011
Location: Cornwall, UK.
Posts: 7,870
Default Re: Akai GX-230D not picking up on silver sense foil.

If the reverse button works check out the sensor for muck/connections etc and make sure the foil on the tape is in good condition.

Circuit wise, the tape sensor is connected across the reverse button switch, both connect to the flip flop that controls the reverse relay and when either the switch or the sensor is operated/actuated the bias supply to the first transistor in the flip flop is connected to chassis via one of them and a diode, that in effect turns the other transistor in the flip flop hard on which in turn actuates the reverse relay, the relay coil being in series with that transistor's collector.

Lawrence.
ms660 is online now   Reply With Quote
Reply

Thread Tools



All times are GMT +1. The time now is 7:35 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 - 2019, vBulletin Solutions, Inc.
Copyright ©2002 - 2019, Paul Stenning.