Magnavox ZV457MG9a problem

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whois

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The VCR side of my Magnavox ZV457MG9a now sounds like a person
snoring
when it plays or records a tape, anyone else have this problem?
 
whois <rose122550@yahoo.com> wrote in message
news:97fb4a1b-1605-4ae6-823f-74b57887ce34@s8g2000vbw.googlegroups.com...
The VCR side of my Magnavox ZV457MG9a now sounds like a person
snoring
when it plays or records a tape, anyone else have this problem?
Click to expand...
assuming its a mechanical noise, not noise on the audio, check the back
tension on the supply side
 
whois <rose122550@yahoo.com> wrote in message
news:6be91395-0089-4269-a4ba-9ee330a7eb6c@i9g2000vbc.googlegroups.com...
On May 24, 1:49 am, "N_Cook" <dive...@tcp.co.uk> wrote:
assuming its a mechanical noise, not noise on the audio, check the back
tension on the supply side
Click to expand...
The "snoring" sound coming from the VCR part of my Magnavox ZV427MG9A
(DVD recorder / VCR combo) is from the hardware and not audio. This
sound
has just been noticeable for about a month now and is audible from 25
feet
away, either in play or record modes and with multiple tapes,
including both
6 & 8 hour tapes. I've had this unit for a year, as the original
purchased unit
lost vertical sync and was replaced after 11 months under warranty, by
FUNAI
as a "reconditioned" unit.

I can find nothing to adjust the brake (tension) straps on either of
the supply or
take-up reels or nothing to bend.

A stethoscope indicates the loudest "snoring" sound is coming from the
VCR tape cartridge, regardless of which cartridge is in the machine.

Haven't found any help with this specific problem online from Magnavox
or FUNAI.

++++

the cartridge is probably acting as a resonator, so perhaps misleading. What
happens to the sound if you manually move the braking actuator pillar in and
out?
The other possibility is part of the slip clutch assembly is worn/misplaced
and some part is rubbing on the deck or even the underside of cartridges.
 
On May 24, 1:49 am, "N_Cook" <dive...@tcp.co.uk> wrote:
assuming its a mechanical noise, not noise on the audio, check the back
tension on the supply side
Click to expand...
The "snoring" sound coming from the VCR part of my Magnavox ZV427MG9A
(DVD recorder / VCR combo) is from the hardware and not audio. This
sound
has just been noticeable for about a month now and is audible from 25
feet
away, either in play or record modes and with multiple tapes,
including both
6 & 8 hour tapes. I've had this unit for a year, as the original
purchased unit
lost vertical sync and was replaced after 11 months under warranty, by
FUNAI
as a "reconditioned" unit.

I can find nothing to adjust the brake (tension) straps on either of
the supply or
take-up reels or nothing to bend.

A stethoscope indicates the loudest "snoring" sound is coming from the
VCR tape cartridge, regardless of which cartridge is in the machine.

Haven't found any help with this specific problem online from Magnavox
or FUNAI.
 
Thanks for your replies; your theory is correct but I haven't found
any means
of viewing or accessing the straps when a cartridge is in place. Also,
I have
been unable to find a parts list/manual for this unit.
the cartridge is probably acting as a resonator, so perhaps misleading. What
happens to the sound if you manually move the braking actuator pillar in and
out?
The other possibility is part of the slip clutch assembly is worn/misplaced
and some part is rubbing on the deck or even the underside of cartridges.
Click to expand...
 
I have determined the location of the "snoring" sound. There is a flat plastic
part which has a piece of rubber-type pad on one end and about 180 degrees
on the other end is a spring; this flat plastic part has a pivot hole in between
the two ends. The "snoring sound is coming from the rubber-type pad which
is held against the supply spindle, on the same surface that the brake strap
rides.

I removed this flat plastic part and the "snoring" sound is eliminated. But
this flat plastic part is required, because the the rubber-type pad is used
to apply drag against the supply spindle during sudden stops (such as
during fast forward or rewind).

There is no visible wear on the rubber-type pad or on the supply spindle
surface which it rides. I cleaned the surface of the rubber-type pad with
a pencil eraser and that did not change the "snoring" sound problem.
I thought about putting a oil or silicone lubricant on the pad surface but
that would also affect the function of the brake strap since both ride on
the same surface of the supply spindle.

Suggestions would be appreciated.
 
UPDATE ON VCR SNORING NOISE:
after running more tests, i found that the "snoring"
sound only happens in the SLP speed, not the SP speed.
and MAY be associated with the belt that drives the
spindles. i can see a portion of the belt through
a hole in the motherboard, and with a wet Qtip,
moistened the inside of the belt, which solved the
noise problem for a short time. After drying, the
noise returned.

since removal of the belt would be a significant
task (because to remove the drive assembly, requires
removal of motherboard from case), is there any
acceptable "belt dressing" available that i could
apply with a Qtip?
 
On Thu, 15 Aug 2013 09:35:06 -0700 (PDT), infoforme121@gmail.com
wrote:

UPDATE ON VCR SNORING NOISE:
after running more tests, i found that the "snoring"
sound only happens in the SLP speed, not the SP speed.
and MAY be associated with the belt that drives the
spindles. i can see a portion of the belt through
a hole in the motherboard, and with a wet Qtip,
moistened the inside of the belt, which solved the
noise problem for a short time. After drying, the
noise returned.

since removal of the belt would be a significant
task (because to remove the drive assembly, requires
removal of motherboard from case), is there any
acceptable "belt dressing" available that i could
apply with a Qtip?
Click to expand...
Fedron. Perhaps it is available from Shop Jimmy. Ness used to carry
it.
 
On 15/08/2013 17:35, infoforme121@gmail.com wrote:
UPDATE ON VCR SNORING NOISE:
after running more tests, i found that the "snoring"
sound only happens in the SLP speed, not the SP speed.
and MAY be associated with the belt that drives the
spindles. i can see a portion of the belt through
a hole in the motherboard, and with a wet Qtip,
moistened the inside of the belt, which solved the
noise problem for a short time. After drying, the
noise returned.

since removal of the belt would be a significant
task (because to remove the drive assembly, requires
removal of motherboard from case), is there any
acceptable "belt dressing" available that i could
apply with a Qtip?
Click to expand...

talcum powder is useful against belt squeel, dusted in on a small paint
brush perhaps
 
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