Tape deck has no audio output (Technics RS-TR373)
 

Hello all,

My Technics tape deck is not putting out any audio. The last time I
used the deck was about a year ago, and I've moved since then. It used
to play and record tapes just fine.

I've checked the obvious - reciever is set to play the audio from the
tape deck ("tape monitor" on my old Harmon Kardon 430) and the volume
is turned up.

I've swapped the audio cables from working components so they are not
the problem. When I plug the tape deck into the CD input on the
reciever I still get no audio, although my CD player works fine when
plugged into the same place.

So I'm convinced there is no audio coming out of the tape deck.

When I try and record to the tape deck like I used to, the dB bars do
not fluctuate like they did before and the tape record no audio
(verified on my walkman).

I opened the tape deck and tried the obvious reseating of ribbons and
checking for any loose connections but this did not have any effect.

Anything else I can try before I take this to a stereo repair shop?

Thanks,
Omi

Tape deck has no audio output (Technics RS-TR373)
 

Omi Chandiramani:
On the tape deck itself.... when playing a tape do the level meters move
indicating that there is audio? Is there a "Source / Tape" switch on the
tape deck? If so, is it in the "Tape" position?
--
Best Regards,
Daniel Sofie
Electronics Supply & Repair
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"Omi Chandiramani" wrote in message
My Technics tape deck is not putting out any audio. The last time I
used the deck was about a year ago, and I've moved since then. It used
to play and record tapes just fine.
I've checked the obvious - reciever is set to play the audio from the
tape deck ("tape monitor" on my old Harmon Kardon 430) and the volume
is turned up.
I've swapped the audio cables from working components so they are not
the problem. When I plug the tape deck into the CD input on the
reciever I still get no audio, although my CD player works fine when
plugged into the same place.
So I'm convinced there is no audio coming out of the tape deck.
When I try and record to the tape deck like I used to, the dB bars do
not fluctuate like they did before and the tape record no audio
(verified on my walkman).
I opened the tape deck and tried the obvious reseating of ribbons and
checking for any loose connections but this did not have any effect.
Anything else I can try before I take this to a stereo repair shop?
Thanks,
Omi

Tape deck has no audio output (Technics RS-TR373)
 

"Sofie" wrote in message ...
Omi Chandiramani:
On the tape deck itself.... when playing a tape do the level meters move
indicating that there is audio? Is there a "Source / Tape" switch on the
tape deck? If so, is it in the "Tape" position?


Thanks for the reply Daniel.

When playing a tape on the deck the level meters are fixed at 50%,
left and right. When I stop the tape, they vanish.

There is no source/tape switch on the deck. (Of subject, but what
would the purpose be since there is only one possible source?)

Thanks again for any help.

Omi

Tape deck has no audio output (Technics RS-TR373)
 

Omi Chandiramani:
On the chance that the R/P switch is dirty or intermittent..... insert a
NEW blank tape and press RECORD and then STOP.... do this repeatedly about
a dozen times or more.... this will "clean" the switch contacts.... MAYBE
this will solve the problem.....
--
Best Regards,
Daniel Sofie
Electronics Supply & Repair
------------------------------



"Omi Chandiramani" wrote in message
om...
"Sofie" wrote in message
...
Omi Chandiramani:
On the tape deck itself.... when playing a tape do the level meters move
indicating that there is audio? Is there a "Source / Tape" switch on
the
tape deck? If so, is it in the "Tape" position?


Thanks for the reply Daniel.

When playing a tape on the deck the level meters are fixed at 50%,
left and right. When I stop the tape, they vanish.

There is no source/tape switch on the deck. (Of subject, but what
would the purpose be since there is only one possible source?)

Thanks again for any help.

Omi

Hi there,

I know its been a while now, but im having the same problem with my Technics RS-TR373 (no audio output and sound level meters stuck in mid). did you ever resolve your problem? what was the fix?

Kind regards,

Shahid.

Tape deck has no audio output (Technics RS-TR373)
 

On Apr 10, 10:59 pm, inquilaabi
wrote:
Hi there,

I know its been a while now, but im having the same problem with my
Technics RS-TR373 (no audio output and sound level meters stuck in
mid). did you ever resolve your problem? what was the fix?


Replace: R406 R407(27R),C424 (470UF25V).
very common problem.

also http://www.eserviceinfo.com/index.php?what=search2
........the service manual is here for free.
hope this helps. Ben

Hi Ben,

Many thanks for your reply. You say in your reply to replace R406 R407 to 27R and C424 to 470uF. According to the schematic diagram (thanks for that link, it is a great help!) R406 is 1.5K, R407 is 3.3K and C424 is 82p. Would I replace the components with their original values or with the values you have suggested?

Waiting in anticipation,
inquilaabi.

Tape deck has no audio output (Technics RS-TR373)
 

On Apr 11, 2:23 pm, inquilaabi
wrote:
Hi Ben,

Many thanks for your reply. You say in your reply to replace R406 R407
to 27R and C424 to 470uF. According to the schematic diagram (thanks
for that link, it is a great help!) R406 is 1.5K, R407 is 3.3K and C424
is 82p. Would I replace the components with their original values or
with the values you have suggested?

It's been a few years, so maybe my info is not 100% ...Test the
resistors to check their condition. replace with same values as the
ones on the board now or, if in doubt stick with the schematic
values. let us know how you get on.
good luck!

Hi Ben,

I’m having a few problems with the schematic diagram and the actual circuit itself; they seem to be different! The schematic diagram does not seen to relate to the circuitry of the tape deck. I have got hold of the full service manual for the RS-TR373 and its not the same as the actual circuit either... it is so confusing the PCB circuits/layouts are completely different from what’s stated in the service manual. This may explain the difference in the component values you quoted earlier. The tape deck is definitely RS-TR373; it says it all over!!

Is there any light you can shed on this??

Kind regards,

inquilaabi