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Jesse
Guest
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 Posted:
Fri Feb 04, 2005 9:00 am Post subject:
Sony front projection TV. |
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I am the volunteer repair guy for our church run charity store and we
recieved a Sony videoscope model KP-5040 in excelent condition that we
want to sell to raise funds. The only problem I've observed is that
the motor to position the image mirror does not operate. Motor is OK
but no drive power is available, also no remote. Can anyone shed a
light on which board supplies power. I do not have any schematics to
work with. skione@telusDONOTINCLUDETHIS.net
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Guest
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| Posted:
Fri Feb 04, 2005 10:12 am Post subject:
Re: Sony front projection TV. |
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Fully working it is worth maybe $25 as a tv/monitor. Might be worth
$50 to a collector of old technology for a museum collection.
The mirror motor was always a problem.
Probably the limit switches in the motor are bad.
Parts have long since not been available to repair the motor issue, the
new owner will simply have to keep the mirror pulled out. That was the
official fix after Sony dropped support about 10 years after it was
made.
Jesse wrote:
| Quote: | I am the volunteer repair guy for our church run charity store and we
recieved a Sony videoscope model KP-5040 in excelent condition that
we
want to sell to raise funds. The only problem I've observed is that
the motor to position the image mirror does not operate. Motor is OK
but no drive power is available, also no remote. Can anyone shed a
light on which board supplies power. I do not have any schematics to
work with. skione@telusDONOTINCLUDETHIS.net |
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JURB6006
Guest
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| Posted:
Sat Feb 05, 2005 6:56 am Post subject:
Re: Sony front projection TV. |
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| Quote: | Fully working it is worth maybe $25 as a tv/monitor. Might be worth
$50 to a collector of old technology for a museum collection
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There is a market segment that really likes these things. I could probably get
about $200 for it. They got good servicability as long as you don't need
proprietary parts, and are quite reliable.
I actually sold one of those old Advents for $600 in about 1994. Of course this
was one of the few with good geometry and convergence. Looked good. It was my
set for a while. Yup my house was the movie watching house, had an old
quadrophonic Marantz reciever feeding slave amps to the tune of about 500
watts. This was fed by the hifi VCRs because the Advent wasn't stereo.
When ABC carried the Monday night football they used to mix the crowd noise
into the rear channels and you would hear ALOT, if ya know what I mean.
Actually I had it setup to run the rear channels off the surround only from the
TV signal and switched the front amp over to tuner and listened to the radio
audio. The announcers are way better on radio.
The Advent gave way to a pre 9-700 based Zenith which still lives.
If you think that's liking old stuff, to this day I use a Sansui 771 as a main
amp. I can't believe it still works, talk about overbuilt ! It's pushing it's
approx 70V P-P into 2.66 ohms. Do the math, that's over 200 WPC RMS. Well it
was until I changed the voltage select to 100V (I guess it's a PX model ?).
Thing just won't blow up and force me to build one. I'd have to build it, my
speakers are perfect for this room and I ain't changing, and I havent seen many
moderate power amps that can run into 2 ohms (200 watts is moderate for an amp
that can run into 2 ohms).
I know of a shop that had the motor kits for those Sony's up until the
early-mid 90s believe it or not.
Unfortunately the OP is going to have to dismount the mirror for transport and
put it back when it gets home, but I think someone might cough up at least $100
for it.
JURB
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Jesse
Guest
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| Posted:
Mon Feb 07, 2005 12:02 am Post subject:
Re: Sony front projection TV. |
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On Fri, 04 Feb 2005 03:00:17 GMT, Jesse <ski@telus.net> wrote:
| Quote: | I am the volunteer repair guy for our church run charity store and we
recieved a Sony videoscope model KP-5040 in excelent condition that we
want to sell to raise funds. The only problem I've observed is that
the motor to position the image mirror does not operate. Motor is OK
but no drive power is available, also no remote. Can anyone shed a
light on which board supplies power. I do not have any schematics to
work with. skione@telusDONOTINCLUDETHIS.net
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Thank you for the advice, It looks great but still 1991 technology.
Jesse. |
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