sci.electronics.repair - 26 new messages in 7 topics - digest

sci.electronics.repair
http://groups.google.com/group/sci.electronics.repair?hl=en

sci.electronics.repair@googlegroups.com

Today's topics:

* HDMI Dead on Panasonic TCP50S2 Plasma TV - 8 messages, 4 authors
http://groups.google.com/group/sci.electronics.repair/t/5ac9f3bf982f8aef?hl=en
* HP IC, Unobtanium ? - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/5afcf62282f737a8?hl=en
* Direct drive cassette motor drive - 2 messages, 2 authors
http://groups.google.com/group/sci.electronics.repair/t/eaf51540646fe4a7?hl=en
* 3.5mm stereo headphone socket that isn't. - 5 messages, 3 authors
http://groups.google.com/group/sci.electronics.repair/t/28320987875a2efc?hl=en
* Hickock CRO-5000a - 3 messages, 2 authors
http://groups.google.com/group/sci.electronics.repair/t/b6a1f1fdf9eeca5e?hl=en
* Why are headphone jacks for computers and handsets different diameters than
cellphones? - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/3b636d8ab09f744a?hl=en
* Mystery apparatus. - 6 messages, 5 authors
http://groups.google.com/group/sci.electronics.repair/t/332e35425da184d2?hl=en

==============================================================================
TOPIC: HDMI Dead on Panasonic TCP50S2 Plasma TV
http://groups.google.com/group/sci.electronics.repair/t/5ac9f3bf982f8aef?hl=en
==============================================================================

== 1 of 8 ==
Date: Wed, Feb 26 2014 5:11 pm
From: jurb6006@gmail.com


If a firmware update is not available for it or is but doesn't fix it you need a main board.




== 2 of 8 ==
Date: Wed, Feb 26 2014 8:48 pm
From: Michael Black


On Wed, 26 Feb 2014, jurb6006@gmail.com wrote:

> If a firmware update is not available for it or is but doesn't fix it
> you need a main board.
>
Well maybe we'll get a new Repair Brief out of this, I remember when they
were posted here. The neat things Sam would find, and then get going.

Michael





== 3 of 8 ==
Date: Wed, Feb 26 2014 9:31 pm
From: jurb6006@gmail.com


I'm pretty sure about the signal not getting through the big damn chip. The question is whether it is a software or hardware problem. If you go to shopjimmys and look at a picture of the main board fro that model, alot of those traes from the HDMI jacks go straight to a big BGA flat thing with a heatsink. The page is here :

http://www.shopjimmy.com/panasonic-txn-a1lquus-a-board.htm

Next to each HDMI jack is a little SMD transistor, no doubt a buffer for whatever data an HDMI device wants to tell the micro. Now if plugging in a modern device (which he has) causes the set to switch to that input (which it did) and it does not produce a picture, the test is inconclusive. the IC that selects the HDMI input could simply be bad, but on the other hand it may not have neen initialized properly. this can be caused by a bad micro, or more likely corrupt data. the corrupt data can be caused by a defective EPROM.

Now actually, EPROMS don't go bad as often as the used to, and I think that shitty power supplies cause alot of data corruption. they depend on specific capacitances in electrolytics for an orderly power down sometimes, which ois shitty engineering because the never gain ESR and/or lose capacity at the same rate over time. In a three year old unit, the screwup could have happened once when turned on cold in a certain mode, or whatever. It depends on too much to be analysable effectively withoput a hell of alot of information and equipment we do not have.

If I could reverse engineer a data port on the thing and had a properly working unit, I would indeed try to load the data from the EPROM in the workiung unit into the non-working unit. I would say that most likely it would fix it.

I would then consider modifying the power supply to make a recurrance less likely. Most likely I would be forced to trust the engineers to have designed it so that a sustained Vcc or Vdd to the micro and EPROM would not damage the ports by having the other supplies slam down on the protection diodes in all the other ICs.

Of course all this is not going to happen. I've never dealt with load EPROMS manually using a PC. I know RCA's Chipper Check software has suck a function. I also know tha tin other electronic fields it is done sometimes, but they are working on expensive equipment that justifies the cost of all this horseshit. If we could get EPROM images when these sets are new, that owuld not be so bad, but where the hell are you going to find the exact same model, and I mean exact. Just because it has the same model number does not mean it is the same model. I have found this out enough times...

So we are down to replacing the board, because if it is a software problem you can change ALL the parts and not fix it. Got one someone broke in half ? go ahead and just change the EPROM. It is SMD but it's only eight pins. It is doable, even for us old guys who can't see.

But get one.




== 4 of 8 ==
Date: Thurs, Feb 27 2014 12:14 am
From: Mike Tomlinson


En el artículo <alpine.LNX.2.02.1402261729390.13710@darkstar.example.org
>, Michael Black <et472@ncf.ca> escribió:

> An LCD monitor has two, or maybe sometimes
>just one, board, and they are so easy to remove to work on.

But realistically, about the only thing you can do is replace bad caps
on the power supply board. The main boards are essentially unrepairable
with their SMD chips.

Repair is pretty much limited to complete replacement of the main board
or LCD panel, neither of which is economically viable.

--
(\_/)
(='.'=)
(")_(")




== 5 of 8 ==
Date: Thurs, Feb 27 2014 11:08 am
From: Michael Black


On Thu, 27 Feb 2014, Mike Tomlinson wrote:

> En el artículo <alpine.LNX.2.02.1402261729390.13710@darkstar.example.org
>> , Michael Black <et472@ncf.ca> escribió:
>
>> An LCD monitor has two, or maybe sometimes
>> just one, board, and they are so easy to remove to work on.
>
> But realistically, about the only thing you can do is replace bad caps
> on the power supply board. The main boards are essentially unrepairable
> with their SMD chips.
>
> Repair is pretty much limited to complete replacement of the main board
> or LCD panel, neither of which is economically viable.
>
Yes, but plenty are being tossed because of bad capacitors, and thus are
really easy to get going.

I'mnot seeing LCD tv sets on the sidewalk yet, but all the LCD monitors I
have have been found on the sidewalk. SOme need new capacitors. One was
a badly damaged screen, but in taking that one apart I saw how little
there was inside. SOme of the smaller ones had some damage to the screen,
but not enough to be a bother.

They are a lot more convenient to keep around than CRT monitors, so much
smaller and lighter.

Michael




== 6 of 8 ==
Date: Thurs, Feb 27 2014 1:17 pm
From: sam@repairfaq.org (Samuel M. Goldwasser)


John-Del <ohger1s@aol.com> writes:

> On Wednesday, February 26, 2014 4:29:18 PM UTC-5, Samuel M. Goldwasser wrote:
>
> But the BD player
> >
> > displays an error once it starts to play. It continudes to play with the
> >
> > U72 or U73 error displayed, but nothing shows up on the screen.
>
> Geez Sam, did you try another DVD player or game system? You may have a bad Blu player as well as just one HDMI port inop....

Yes, FIOS and Blu-ray both come up blank, though FIOS doesn't show an error.

--
sam | Sci.Electronics.Repair FAQ: http://www.repairfaq.org/
Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
+Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm
| Mirror Sites: http://www.repairfaq.org/REPAIR/F_mirror.html

Important: Anything sent to the email address in the message header above is
ignored unless my full name AND either lasers or electronics is included in the
subject line. Or, you can contact me via the Feedback Form in the FAQs.





== 7 of 8 ==
Date: Thurs, Feb 27 2014 1:21 pm
From: sam@repairfaq.org (Samuel M. Goldwasser)


Michael Black <et472@ncf.ca> writes:

> On Wed, 26 Feb 2014, jurb6006@gmail.com wrote:
>
> > If a firmware update is not available for it or is but doesn't fix
> > it you need a main board.
> >
> Well maybe we'll get a new Repair Brief out of this, I remember when
> they were posted here. The neat things Sam would find, and then get
> going.

That dates us. ;( :)

Unless it gets worse, I'll just live with using Component Video.

Someone else noted how much easier it is to get to the guts of these modern
flat screen sets. That is certainly true, but balance that with the sheer
size and it becomes a pain to find a spot to even work on it!

--
sam | Sci.Electronics.Repair FAQ: http://www.repairfaq.org/
Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
+Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm
| Mirror Sites: http://www.repairfaq.org/REPAIR/F_mirror.html

Important: Anything sent to the email address in the message header above is
ignored unless my full name AND either lasers or electronics is included in the
subject line. Or, you can contact me via the Feedback Form in the FAQs.




== 8 of 8 ==
Date: Thurs, Feb 27 2014 5:50 pm
From: jurb6006@gmail.com


I built some nifty stands for that purpose. I'll find the pictures later.





==============================================================================
TOPIC: HP IC, Unobtanium ?
http://groups.google.com/group/sci.electronics.repair/t/5afcf62282f737a8?hl=en
==============================================================================

== 1 of 1 ==
Date: Wed, Feb 26 2014 11:05 pm
From: jurb6006@gmail.com


>" Have you ask for a quote from the 100+ companies that won't give you
a price online. "

You mean the ones you send your email address to and if they ever come up with one you have to buy 100,000 of them ? No, I didn't bother doing that.

>" I found a couple of others looking to replace the same ic in the same
scope. You might be better off building it yourself, for reliability. "

Not a bad idea really. Any one I get now would be used. The problem now is finding the right MOSFETs. I bet recalibrating it will be loads of fun. Actually it might not be all that bad. The HF response will probably be better if anything. I might have to remove some of the peaking caps or something if they won't adjust down enough. Then if the gain is really up there of course then I might need to change some resistors. They got the internal 50 ohm changeed to a 47, but that won't mean shit to differential mode. I hope the static plate voltages come close enough ! Then comes getting the thing straight.





==============================================================================
TOPIC: Direct drive cassette motor drive
http://groups.google.com/group/sci.electronics.repair/t/eaf51540646fe4a7?hl=en
==============================================================================

== 1 of 2 ==
Date: Thurs, Feb 27 2014 1:00 am
From: N_Cook


Capstan drive , motor and conventional belt, contrarotating different
size spindles, 1.89 and 2.09 mm. But FF/REW and spool take up is a
second, 2 wire motor, with no slip clutch, cog to cog to cog, reversible
via jockey swing-arm assembly . The first drive cog is different to all
I've ever seen with teeth about 3 times longer than usual, usual pitch.
Long teeth for some give/reduced noise?
There is a hall sensor under the (normal direction drive) take up spool,
is that used not just to sense a stop/jam but to give a variable feed to
the main motion motor. Even then it has to be more drive than exactly
required , by some degree, so does design allow for the motor to be used
as a sort of slip clutch, as a DC motor not precise stepper motor
Yamaha rare heavy ghetto blaster AST C10, 1989, otherwise just (just -
hah-hah, horrible topology puzzle to get there) needs the rubber bands
changing to silicone rubber bands ( futile exercise replacing with
contemporaneous neoprene bands and no known suppliers who state they
stock newly manufactured flat bands)




== 2 of 2 ==
Date: Thurs, Feb 27 2014 10:37 pm
From: Charlie+


On Thu, 27 Feb 2014 09:00:17 +0000, N_Cook <diverse@tcp.co.uk> wrote as
underneath :

>Capstan drive , motor and conventional belt, contrarotating different
>size spindles, 1.89 and 2.09 mm. But FF/REW and spool take up is a
>second, 2 wire motor, with no slip clutch, cog to cog to cog, reversible
>via jockey swing-arm assembly . The first drive cog is different to all
>I've ever seen with teeth about 3 times longer than usual, usual pitch.
>Long teeth for some give/reduced noise?
>There is a hall sensor under the (normal direction drive) take up spool,
>is that used not just to sense a stop/jam but to give a variable feed to
>the main motion motor. Even then it has to be more drive than exactly
>required , by some degree, so does design allow for the motor to be used
>as a sort of slip clutch, as a DC motor not precise stepper motor
>Yamaha rare heavy ghetto blaster AST C10, 1989, otherwise just (just -
>hah-hah, horrible topology puzzle to get there) needs the rubber bands
>changing to silicone rubber bands ( futile exercise replacing with
>contemporaneous neoprene bands and no known suppliers who state they
>stock newly manufactured flat bands)

NC - What are you on??!! C+





==============================================================================
TOPIC: 3.5mm stereo headphone socket that isn't.
http://groups.google.com/group/sci.electronics.repair/t/28320987875a2efc?hl=en
==============================================================================

== 1 of 5 ==
Date: Thurs, Feb 27 2014 8:54 am
From: "Arfa Daily"




"William Sommerwerck" <grizzledgeezer@comcast.net> wrote in message
news:lektm5$ijk$1@dont-email.me...
>> I've always wondered about "Bloody". How it became a bad word.
>
> "Bloody" is a corruption of "by our Lord". It is "bad" because it's
> considered disrespectful to use it as a derogatory term.
>

Do you have a reference for that, because it's a completely new one on me?
I've never to the best of my knowledge heard that phrase used, nor even seen
it in any archaic literature. And usually, such 'corruptions' are fairly
easily recognisable from the original phrase - a good example being "Gaw
Blimey" or "Gawd Blimey" or sometimes a corruption on a corruption as "Cor
Blimey". This exclamation of mild surprise derives from 'God blind me', and
it's easy to see how. I'm really struggling to derive "bloody" from "by our
Lord" ...

Arfa





== 2 of 5 ==
Date: Thurs, Feb 27 2014 10:04 am
From: "William Sommerwerck"


"Arfa Daily" wrote in message news:T4KPu.350$8H3.68@fx10.am4...
"William Sommerwerck" <grizzledgeezer@comcast.net> wrote in message
news:lektm5$ijk$1@dont-email.me...

>>> I've always wondered about "Bloody". How it became a bad word.

>> "Bloody" is a corruption of "by our Lord". It is "bad" because it's
>> considered disrespectful to use it as a derogatory term.

> Do you have a reference for that, because it's a completely new one on me?
> I've never to the best of my knowledge heard that phrase used, nor even seen
> it in any archaic literature. And usually, such 'corruptions' are fairly
> easily recognisable from the original phrase - a good example being "Gaw
> Blimey" or "Gawd Blimey" or sometimes a corruption on a corruption as "Cor
> Blimey". This exclamation of mild surprise derives from 'God blind me', and
> it's easy to see how. I'm really struggling to derive "bloody" from "by our
> Lord" ...

I read this decades ago. Unfortunately, I don't remember the reference.
Another possible origin is a corruption of "by God's blood".

The OED gives no origin, one is suggested in this quote from Ruskin (1880):

"The use of the word 'bloody' in modern low English is a deeper corruption,
not altering the form of the word, but /defiling the thought in it/."





== 3 of 5 ==
Date: Thurs, Feb 27 2014 5:37 pm
From: "Michael A. Terrell"



etpm@whidbey.com wrote:
>
> The British and American slang differences are a great source of
> humo(u)r. My brother has a friend who was visiting her husband's
> relatives in Britain. These folks were pretty high class, pretty
> proper. At the end of a good meal she exclaimed that she was
> "stuffed". After comment only silenced ensued. Later that evening her
> husband told her why her comment was offensive. This makes me think
> about how much fun the Brits must have had when shag carpet was so
> popular here in the US.


Are you saying there was no shagging going on, on that kind of
carpet?


--
Anyone wanting to run for any political office in the US should have to
have a DD214, and a honorable discharge.




== 4 of 5 ==
Date: Thurs, Feb 27 2014 5:38 pm
From: "Michael A. Terrell"



Arfa Daily wrote:
>
> Like the joke, I guess. "My wife went to the Carribean." "Jamaica ?"
> "No, she went of her own accord ..."


She drives a Honda? :)


--
Anyone wanting to run for any political office in the US should have to
have a DD214, and a honorable discharge.




== 5 of 5 ==
Date: Thurs, Feb 27 2014 5:42 pm
From: "Michael A. Terrell"



Arfa Daily wrote:
>
> "He's pissed" can have two meanings, one of which I'm sure we share, and
> that is being a bit mad about something. It's abbreviated from "pissed off".
> But here, it also means being drunk, and the process of becoming so is
> "getting pissed". But getting pissed can of course also mean becoming a bit
> angry ... :-)
>
> "Getting hammered" or "He's hammered" are also phrases for drunkenness here.
> It can also refer to being under the influence of drugs.
>
> Bloody is a funny one. I've never looked into its origins as a swear word.
> It is very mild though, and is often used in conjunction with another word
> as an outburst of exasperation or shock as in "Bloody hell!" or "Bloody
> Norah" - and no, I've no idea who 'Norah' was ...
>
> Yes, a person covered in blood can be described as bloody, as can a rag or a
> handprint or whatever. It's commonly used in that context.
>
> If you asked for a bloody steak in a decent restaurant, they might look at
> you a bit sideways, but would understand what you wanted. In anything less
> that a decent one, they would probably just not understand you at all, and
> would think that you were swearing. Some restaurants won't even serve a
> bloody steak, such is the Health and Safety madness here now. All the same
> definitions of steak temperature apply here as well as in the U.S. but the
> same temperature is normally a little less here, so if you ordered a 'rare'
> steak here, it would normally be a bit pinker than you would be used to if
> you asked for it rare your side of the pond. If you ask for it very rare, it
> will normally be a little bloody in the middle. If you want a piece of meat
> that a vet could bring back to life, you can ask for a 'blue' steak. This
> has been really quickly flash cooked, and is only about 2 points to the
> right of raw through to the core.


An old US Army joke: If you order a 'Rare' hamburger, they pass it
over a match. If you order a 'Well Done' hamburger, they light the
match. :)

--
Anyone wanting to run for any political office in the US should have to
have a DD214, and a honorable discharge.





==============================================================================
TOPIC: Hickock CRO-5000a
http://groups.google.com/group/sci.electronics.repair/t/b6a1f1fdf9eeca5e?hl=en
==============================================================================

== 1 of 3 ==
Date: Thurs, Feb 27 2014 10:41 am
From: "Michael A. Terrell"



jurb6006@gmail.com wrote:
>
> ?"Anyone with half a brain would
> contact the seller and ask the specifications, or just buy the damned
> manual. "
>
> Well I happen to have a whole brain so I am not going to buy a manual for more than the scope might be worth.
>
> Anyway, it is here now. It has a trace and horizontal deflection but I think it is just deflecting at 60Hz, seems like a sinewave. There is no response from the vertical position controls so I didn't bother trying to feed it. If the position controls don't work, it is not going to work unless it is some really strange design.
>
> Probably the power supply. It's not a priotity right now but it would make a spare for in a pinch or peddle it on eBay or something.


So, you're too lazy to message the seller to ask a question. That's
no surprise.


--
Anyone wanting to run for any political office in the US should have to
have a DD214, and a honorable discharge.




== 2 of 3 ==
Date: Thurs, Feb 27 2014 5:52 pm
From: jurb6006@gmail.com


Laziness is a virtue.




== 3 of 3 ==
Date: Thurs, Feb 27 2014 6:23 pm
From: "Michael A. Terrell"



jurb6006@gmail.com wrote:
>
> Laziness is a virtue.


Only to the shiftless.


--
Anyone wanting to run for any political office in the US should have to
have a DD214, and a honorable discharge.





==============================================================================
TOPIC: Why are headphone jacks for computers and handsets different diameters
than cellphones?
http://groups.google.com/group/sci.electronics.repair/t/3b636d8ab09f744a?hl=en
==============================================================================

== 1 of 1 ==
Date: Thurs, Feb 27 2014 10:42 am
From: "Michael A. Terrell"



Caulking-Gunn@work.com wrote:
>
> On Thu, 20 Feb 2014 01:15:43 -0500, "Michael A. Terrell"
> <mike.terrell@earthlink.net> wrote:
>
> >
> > Why would anyone need a 'caulking gunn' for anything?
>
> For sucking caulk :)


Suck whatever you want. :(


--
Anyone wanting to run for any political office in the US should have to
have a DD214, and a honorable discharge.





==============================================================================
TOPIC: Mystery apparatus.
http://groups.google.com/group/sci.electronics.repair/t/332e35425da184d2?hl=en
==============================================================================

== 1 of 6 ==
Date: Thurs, Feb 27 2014 10:46 pm
From: "David Farber"


A friend of mine passed along a couple of photos of something that looks
like some sort of jig, perhaps turntable related. He hasn't seen it or used
it in so long that he can't remember what it is. Any ideas?

http://webpages.charter.net/mrfixiter/images/Electronics/Mystery-device-1.jpg
http://webpages.charter.net/mrfixiter/images/Electronics/Mystery-device-2.jpg

Thanks for your reply.
--
David Farber
Los Osos, CA






== 2 of 6 ==
Date: Fri, Feb 28 2014 12:05 am
From: N_Cook


On 28/02/2014 06:46, David Farber wrote:
> A friend of mine passed along a couple of photos of something that looks
> like some sort of jig, perhaps turntable related. He hasn't seen it or used
> it in so long that he can't remember what it is. Any ideas?
>
> http://webpages.charter.net/mrfixiter/images/Electronics/Mystery-device-1.jpg
> http://webpages.charter.net/mrfixiter/images/Electronics/Mystery-device-2.jpg
>
> Thanks for your reply.
>

A sliding cup missing from the rod part ? What weights , hung for test
purposes yardarm-like, on the rod part will bring the cylinder to
horizontal ?




== 3 of 6 ==
Date: Fri, Feb 28 2014 2:09 am
From: Adrian C


On 28/02/2014 06:46, David Farber wrote:
> A friend of mine passed along a couple of photos of something that looks
> like some sort of jig, perhaps turntable related. He hasn't seen it or used
> it in so long that he can't remember what it is. Any ideas?
>
> http://webpages.charter.net/mrfixiter/images/Electronics/Mystery-device-1.jpg
> http://webpages.charter.net/mrfixiter/images/Electronics/Mystery-device-2.jpg
>
> Thanks for your reply.
>

It's a monitor audio stylift.

http://www.youtube.com/watch?v=sM-0-FiuqRU

--
Adrian C







== 4 of 6 ==
Date: Fri, Feb 28 2014 7:30 am
From: dave


On 02/28/2014 02:09 AM, Adrian C wrote:
> On 28/02/2014 06:46, David Farber wrote:
>> A friend of mine passed along a couple of photos of something that looks
>> like some sort of jig, perhaps turntable related. He hasn't seen it or
>> used
>> it in so long that he can't remember what it is. Any ideas?
>>
>> http://webpages.charter.net/mrfixiter/images/Electronics/Mystery-device-1.jpg
>>
>> http://webpages.charter.net/mrfixiter/images/Electronics/Mystery-device-2.jpg
>>
>>
>> Thanks for your reply.
>>
>
> It's a monitor audio stylift.
>
> http://www.youtube.com/watch?v=sM-0-FiuqRU
>

Jeez, more unicorns.




== 5 of 6 ==
Date: Fri, Feb 28 2014 7:36 am
From: John Robertson


On 02/28/2014 2:09 AM, Adrian C wrote:
> On 28/02/2014 06:46, David Farber wrote:
>> A friend of mine passed along a couple of photos of something that looks
>> like some sort of jig, perhaps turntable related. He hasn't seen it or
>> used
>> it in so long that he can't remember what it is. Any ideas?
>>
>> http://webpages.charter.net/mrfixiter/images/Electronics/Mystery-device-1.jpg
>>
>> http://webpages.charter.net/mrfixiter/images/Electronics/Mystery-device-2.jpg
>>
>>
>> Thanks for your reply.
>>
>
> It's a monitor audio stylift.
>
> http://www.youtube.com/watch?v=sM-0-FiuqRU
>

Ah, this gizmo:

http://www.audiokarma.org/forums/showthread.php?t=472866

John :-#)#

--
(Please post followups or tech inquiries to the newsgroup)
John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9
(604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games)
www.flippers.com
"Old pinballers never die, they just flip out."




== 6 of 6 ==
Date: Fri, Feb 28 2014 8:14 am
From: dave


On 02/28/2014 07:36 AM, John Robertson wrote:
> On 02/28/2014 2:09 AM, Adrian C wrote:
>> On 28/02/2014 06:46, David Farber wrote:
>>> A friend of mine passed along a couple of photos of something that looks
>>> like some sort of jig, perhaps turntable related. He hasn't seen it or
>>> used
>>> it in so long that he can't remember what it is. Any ideas?
>>>
>>> http://webpages.charter.net/mrfixiter/images/Electronics/Mystery-device-1.jpg
>>>
>>>
>>> http://webpages.charter.net/mrfixiter/images/Electronics/Mystery-device-2.jpg
>>>
>>>
>>>
>>> Thanks for your reply.
>>>
>>
>> It's a monitor audio stylift.
>>
>> http://www.youtube.com/watch?v=sM-0-FiuqRU
>>
>
> Ah, this gizmo:
>
> http://www.audiokarma.org/forums/showthread.php?t=472866
>
> John :-#)#
>

I feel sorry for people who can't work a tone arm without mechanical
help. Clue, use your "pinkie" finger as a miniature monopole (for
stability). Pivot your other fingers. Lowish light beyond the arm is
very helpful for finding the quiet parts on the platter and placing the
stylus. I never had the patience for damped cuing levers. Not bragging,
just sharing.




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