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Vintage Tape (Audio), Cassette, Wire and Magnetic Disc Recorders and Players Open-reel tape recorders, cassette recorders, 8-track players etc. |
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15th May 2021, 6:20 pm | #21 |
Dekatron
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Re: Grundig tk 24
Unless I've missed it no one's mentioned contact W2, that connects the ground side of the head winding to ground for the tracks selected during playback, if that is open circuit or very high resistance there would be no or very little output when playing back a tape that has a known good recording on it, it wouldn't affect an input to the Phono or Radio input sockets, might be worth eliminating that possibility first along with the possibility of any other discontinuity between the head and the input to the EF86 such as contacts D1 not changing back over properly.
Lawrence. Last edited by ms660; 15th May 2021 at 6:49 pm. Reason: extra info |
16th May 2021, 2:10 am | #22 | |
Triode
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Re: Grundig tk 24
Quote:
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16th May 2021, 10:07 am | #23 |
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Re: Grundig tk 24
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16th May 2021, 12:53 pm | #24 |
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Re: Grundig tk 24
Thank you Lawrence, I did not know it does fast erase.
David |
16th May 2021, 12:56 pm | #25 | |
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Re: Grundig tk 24
Quote:
David |
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16th May 2021, 4:04 pm | #26 | |
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Re: Grundig tk 24
Quote:
David |
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16th May 2021, 4:14 pm | #27 |
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Re: Grundig tk 24
Is the EM 84 Magic Eye display working OK. With machine powered up it should look similar to the attached photo.
With your Bluetooth inject into the Phono input are you able to adjust the record level control (the volume control in Playback mode) to get the EM 84 display dark section to narrow down ? David |
16th May 2021, 5:13 pm | #28 | |
Triode
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Re: Grundig tk 24
Quote:
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16th May 2021, 5:22 pm | #29 | |
Triode
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Re: Grundig tk 24
Quote:
yes em84 light glow correctly as shown in the picture actually my confusion why volume dropped on play back mode |
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16th May 2021, 11:35 pm | #30 |
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Re: Grundig tk 24
So you still have the low volume on playback (with Bluetooth inject into the EF 86) Yes / No ?
Have you tried playing back a tape ? David |
16th May 2021, 11:41 pm | #31 | |
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Re: Grundig tk 24
Quote:
Regaeds Krishna |
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17th May 2021, 8:45 am | #32 |
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Re: Grundig tk 24
I am not sure I fully understand your question Krishna and I do not understand if the motor belt reversal has anything to do with the issue in question.
If the PB head is not open circuit and not severely worn and is really clean, then it will provide adequate signal through to the EF 86 assuming all associated wiring and contacts are also good. David |
17th May 2021, 9:51 am | #33 | |
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Re: Grundig tk 24
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Regards Krishna |
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17th May 2021, 10:19 am | #34 | |
Triode
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Re: Grundig tk 24
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17th May 2021, 10:58 am | #35 | |
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Re: Grundig tk 24
Quote:
David Update - Looking at the top of the flywheel shaft what direction is it rotating, clockwise or counter-clockwise ? Last edited by DMcMahon; 17th May 2021 at 11:01 am. Reason: Update |
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17th May 2021, 11:49 am | #36 |
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Re: Grundig tk 24
I think he might be saying that he can only play a tape with the tape recorder in the horizontal position (normal operating position) ?
Lawrence. |
17th May 2021, 12:13 pm | #37 |
Triode
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Re: Grundig tk 24
No sir dont get confusion to trace the problem I reversed the unit and in this stage i cant play tape due to gravity spool tape will fall down hence i connected BT there is no issue with machanisum it is ok
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17th May 2021, 12:21 pm | #38 | ||
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Re: Grundig tk 24
Quote:
No sir every thing is ok no issue with Machanisum I tilted the unit i cant load spooltape due to gravity it will fall down if without tape; if I play pick up wheels rub the ground hence i removed main belt to stop the play machanical process My only aim is If bt out put comes with full volume then 100% i will get full volume with play back Head signal Regards Krishna |
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17th May 2021, 12:36 pm | #39 | |
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Re: Grundig tk 24
[QUOTE=ms660;1375057]
Quote:
Could you feed your signal in again at the junction of contacts D1 and D4 (the input to C13) with the control set to Playback and report back with the result. Lawrence. Last edited by ms660; 17th May 2021 at 12:42 pm. Reason: to make clearer |
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17th May 2021, 1:42 pm | #40 | ||
Triode
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Re: Grundig tk 24
[QUOTE=ms660;1375059]
Quote:
Please guide me is my logic is correct |
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