Repair on micro-cassette recorders...

[Rod]

I have two micro-cassette recorders.. hand held models. One is made by
Panasonic and one by Sony. They both have problems when recording. After
recording voice, during play back the voice comes in and out in big waves
and different frequencies... like the tape is damaged. This isn't the
problem because I have purchased new tapes and tried with no luck. Also, I
have cleaned the head thinking it might be dirty.. still does the same
thing.

Any suggestions?

If they can be fixed, I'd rather go that route...if in fact it's more
economical than buying a new one. I don't know.. it might not be.

Thanks,

Rod

[Haywire]

The Panasonic ones were known for (back when they used to be
cost-effective to repair) the brass bushings coming loose where the capstan
shaft fits through the mechanism, causing the tape to ride up +ACY- down (back
and forth) accross the audio head... this causes a totally incorrect and
constantly changing azimuth situation... junk it... (Maybe the Sony, too has
the same mechanism.) An alternative may be to use JB weld (harder
consistency than epoxy) to fix the bushing back in place, then reinstall the
capstan flywheel/shaft... Be careful not to get any in the actual bearing
surfaces at the center of the bushing...

Rod wrote in message +ADw-01be1c9c+ACQ-ab8441c0+ACQ-26736520+AEA-hotrod+AD4-...
+AD4-I have two micro-cassette recorders.. hand held models. One is made by
+AD4-Panasonic and one by Sony. They both have problems when recording. After
+AD4-recording voice, during play back the voice comes in and out in big waves
+AD4-and different frequencies... like the tape is damaged. This isn't the
+AD4-problem because I have purchased new tapes and tried with no luck. Also, I
+AD4-have cleaned the head thinking it might be dirty.. still does the same
+AD4-thing.
+AD4-
+AD4-Any suggestions?
+AD4-
+AD4-
+AD4-If they can be fixed, I'd rather go that route...if in fact it's more
+AD4-economical than buying a new one. I don't know.. it might not be.
+AD4-
+AD4-Thanks,
+AD4-
+AD4-Rod

[Sam Goldwasser]

Clean everything else. See the Audio+Misc FAQ.

--- sam | Sci.Electronics.Repair FAQ Home Page: http://www.repairfaq.org/
Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
+Lasers | Mirror Info: http://www.repairfaq.org/REPAIR/F_mirror.html
| Sam's Laser FAQ: http://www.misty.com/~don/lasersam.html

In article <01be1c9c$ab8441c0$26736520@hotrod> "Rod" <billpo...@hotmail.com> writes:

I have two micro-cassette recorders.. hand held models. One is made by

Panasonic and one by Sony. They both have problems when recording. After

recording voice, during play back the voice comes in and out in big waves

and different frequencies... like the tape is damaged. This isn't the

problem because I have purchased new tapes and tried with no luck. Also, I

have cleaned the head thinking it might be dirty.. still does the same

thing.

Any suggestions?

If they can be fixed, I'd rather go that route...if in fact it's more

economical than buying a new one. I don't know.. it might not be.

Thanks,

Rod

[Wild Bill]

hi.. the trouble with these machines is that everything inside is micro..
sometimes the drive system is rim drive to the drive hubs, and age will
cause the problem of changing speed. Clutches are usually incorporated to
allow limited slip to compensate for changes in supply vs. takeup reel
capacities, and you'll most likely need to do quite a bit of disassembly to
get to the areas that need cleaned.

cheers
WB
...................................

[Cold Canuck]

On 30 Nov 1998 20:00:51 GMT, "Rod" <billpo...@hotmail.com> wrote:

>I have two micro-cassette recorders.. hand held models. One is made by
>Panasonic and one by Sony. They both have problems when recording. After
>recording voice, during play back the voice comes in and out in big waves
>and different frequencies... like the tape is damaged. This isn't the
>problem because I have purchased new tapes and tried with no luck. Also, I
>have cleaned the head thinking it might be dirty.. still does the same
>thing.
>
>Any suggestions?
>
>
>If they can be fixed, I'd rather go that route...if in fact it's more
>economical than buying a new one. I don't know.. it might not be.
>
>Thanks,
>
>Rod

Hard to tell the exact problem frommthe description but it sounds as
if tape speed is fluctuating, possibly due to a weak motor, poor
batteriess, old drive belt etc.
Randy