Sony 1970s cassette deck repair recommendations please.

[Fullrange]

Can anyone point me in the right direction of a repair company that can sort out my old Sony TC-229 1978 cassette deck.
It records great but on play back the right channel is significantly lower in volume and the vu meter shows the same.
I'm assuming that the play back head needs looking at.
Many thanks.

[Made in 1968]

It might be one of two things, Dirty switch or Iffy Transistor. Any excessive noise? I have the same problem with an Akai machine i bought. The Replacement Transistors [Better substitutes] came in the post today..

[Fullrange]

There is no excessive noise... Just a volume drop.

[Made in 1968]

Is that VU meter still weak when recording?

https://www.wilkinsons.tv/hifi-repai...-deck-repairs/

[Fullrange]

I recorded a test tone with both meters showing 100%. During play back the right meter shows 50% and the audio is quiet by around the same level.
Thanks for the link I will make contact.

[Made in 1968]

It will be the playback board then. I think there are three transistors per channel.

[Fullrange]

Thank you.

[Fullrange]

Unfortunately the recommended repair agent is closed due to coronavirus.
Can anyone recommend anyone else who might be able to help.
Many thanks.

[Fullrange]

Found this guy who has been in repair business for 30 years.
Brad at...
Bradley Electronics.
11 Meadow Park, Dawlish, EX7 9BS
07707 844031

He repaired the deck and gave it a service and calibration for £120.
Sounds and operates like it was 1977 again. 😂

[Firebottle]

Excellent news.