The function selector from my Sony TC 377 is blocked. - UK Vintage Radio Repair and Restoration Discussion Forum

GOLHSony377 · 16th Feb 2023, 2:00 pm

Hello,
I am not using my vintage Sony TC 377 recorder nog ver often.
Now occured the problem that the function selector is blocked.
I cannot move this total to the right or left.
I removed the front panel but I cannot see where the blocking is occurring.
Is there somebody who is able to help me out?

teetoon · 17th Feb 2023, 11:20 pm

Hi. Have you got a tape threaded ?
The knob won't turn fully unless the end of tape lever is raised.
It's the steel rod lever at the left of the head block.

David.

Michael Maurice · 20th Feb 2023, 11:13 am

The control knob will still turn if no tape is loaded but will immediately spring back to the stop position

Keith956 · 20th Feb 2023, 11:37 am

The mechanism can seize due to buildup / hardening of grease. It's best to strip it down and clean the old stuff out (grey/black) and lightly re-grease after cleaning.

A video I found useful was: https://www.youtube.com/watch?v=hSBEmVRSRxA&t=2606s

ben · 20th Feb 2023, 4:38 pm

If it is anything like the TC270 there will be linkages stiff with hardened grease. I made a pictorial guide on how to go about servicing it, that ought to be on here somewhere. It was fiddly, but if you have an aptitude for such work , do-able.

DMcMahon · 21st Feb 2023, 10:27 am

Could not easily find the Thread but in Post 14 of this Thread you (Ben) said the guide was too large so you would email -

https://www.google.com/url?client=in...WIPfqRUnZqCQW1

David

ben · 21st Feb 2023, 2:15 pm

Uploaded now

16th Feb 2023, 2:00 pm	#1
GOLHSony377 Diode Join Date: Feb 2023 Location: Groningen, Netherlands. Posts: 1	The function selector from my Sony TC 377 is blocked. Hello, I am not using my vintage Sony TC 377 recorder nog ver often. Now occured the problem that the function selector is blocked. I cannot move this total to the right or left. I removed the front panel but I cannot see where the blocking is occurring. Is there somebody who is able to help me out?

17th Feb 2023, 11:20 pm	#2
teetoon Heptode Join Date: Dec 2010 Location: Barnstaple, N.Devon, UK. Posts: 557	Re: The function selector from my Sony TC 377 is blocked. Hi. Have you got a tape threaded ? The knob won't turn fully unless the end of tape lever is raised. It's the steel rod lever at the left of the head block. David. Last edited by teetoon; 17th Feb 2023 at 11:27 pm.

20th Feb 2023, 11:13 am	#3
Michael Maurice Moderator Join Date: Feb 2006 Location: Wembley, Middlesex Posts: 7,222	Re: The function selector from my Sony TC 377 is blocked. The control knob will still turn if no tape is loaded but will immediately spring back to the stop position __________________ Forum Moderator http://www.michaelmauricerepairs.co.uk/

20th Feb 2023, 11:37 am	#4
Keith956 Heptode Join Date: Jun 2019 Location: Oxfordshire Posts: 737	Re: The function selector from my Sony TC 377 is blocked. The mechanism can seize due to buildup / hardening of grease. It's best to strip it down and clean the old stuff out (grey/black) and lightly re-grease after cleaning. A video I found useful was: https://www.youtube.com/watch?v=hSBEmVRSRxA&t=2606s

20th Feb 2023, 4:38 pm	#5
ben Dekatron Join Date: Aug 2006 Location: Madrid, Spain / Wirral, UK Posts: 7,498	Re: The function selector from my Sony TC 377 is blocked. If it is anything like the TC270 there will be linkages stiff with hardened grease. I made a pictorial guide on how to go about servicing it, that ought to be on here somewhere. It was fiddly, but if you have an aptitude for such work , do-able. __________________ Regards, Ben.

21st Feb 2023, 10:27 am	#6
DMcMahon Dekatron Join Date: Apr 2019 Location: Worthing, West Sussex, UK. Posts: 6,600	Re: The function selector from my Sony TC 377 is blocked. Could not easily find the Thread but in Post 14 of this Thread you (Ben) said the guide was too large so you would email - https://www.google.com/url?client=in...WIPfqRUnZqCQW1 David