Sony SG-613

[leo]

Hello all,
I am looking for the Sony part# SG613 for an old color TV anyone knows
where I can buy it. I found it on ebay but the person is selling more
than one part and I only need one.

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3813435515

Thanks

 

[David]

Some warnings about your Sony you are trying to repair.
1. Do not use generics, they lack an internal fuse and if you missed
any of the 30 some odd other parts that are bad, it will blow and
everything else you just replaced with also blow again. Gets
expensive after a while.
2. That is an ancient tv set. Are you sure it is worth fixing. Last
reliable source we had for the SG-613 had it listed at $48. You MUST
fix the cause of its failure BEFORE replacing it.

You can learn the hard way about that old chassis, it is NOT for
someone to try and repair who has little experience.

David

sabreusa@juno.com (leo) wrote in message news:<c341a983.0405050551.5adbd8a3@posting.google.com>...

Hello all,
I am looking for the Sony part# SG613 for an old color TV anyone knows
where I can buy it. I found it on ebay but the person is selling more
than one part and I only need one.

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3813435515

Thanks

 

[RonKZ650]

The sets are *very* tough. The Sony procedure for diagnosing the SG613 failure
was to replace the SG613 and with an external power supply, inject 19vcd on
both the 19v and 130v power supplys, then with an oscilloscope, meter and HV
probe go through a very lengthy diagnosis to determine what was causing the
SG613 to fail. Even when all this was followed to a T and everything was
seemingly OK, the SG613 would short within 1 second of applying AC power about
25% of the time, and another 25% of the time would fail within a couple weeks.
So you had a 50/50 chance of actually fixing the set even when you did
everything right and used all original Sony parts.
Most shops in the late 70s wouldn't even touch one of these Sony's. Very
expensive and risky to repair. Definately not worth the effort now. These were
about a $400 set and a darn good set for it's day, but it's day is done.
Ron

Some warnings about your Sony you are trying to repair.
1. Do not use generics, they lack an internal fuse and if you missed
any of the 30 some odd other parts that are bad, it will blow and
everything else you just replaced with also blow again. Gets
expensive after a while.
2. That is an ancient tv set. Are you sure it is worth fixing. Last
reliable source we had for the SG-613 had it listed at $48. You MUST
fix the cause of its failure BEFORE replacing it.

You can learn the hard way about that old chassis, it is NOT for
someone to try and repair who has little experience.

David

sabreusa@juno.com (leo) wrote in message
news:<c341a983.0405050551.5adbd8a3@posting.google.com>...
Hello all,
I am looking for the Sony part# SG613 for an old color TV anyone knows
where I can buy it. I found it on ebay but the person is selling more
than one part and I only need one.

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3813435515

Thanks

 

[Art]

Repaired quite a lot of the KV1720/1920 versions. Had a technique where we
actually ran the horizontal drive circuitry with external supplies. We would
confirm the osc and drive circuitry were fully operational before ever
installing a new 613. Of course we would ring the LOPT and check the ringing
caps in the horiz circuit as a manner of routine. Even then we would
encounter a few that wanted to play outof the box and just became dogs. I
totally agree, first these sets are not worth a whole lot of effort since
reliable replacements are available. Second, if you do not have the proper
schematics and know the unique aberrations of these old SONY sets you are
just spinning your wheels. Money before any other equalizations has already
been addressed by the other posts. PLEASE check all your cross posts.
"RonKZ650" <ronkz650@aol.comnospam> wrote in message
news:20040505193112.25970.00000934@mb-m29.aol.com...

The sets are *very* tough. The Sony procedure for diagnosing the SG613
failure
was to replace the SG613 and with an external power supply, inject 19vcd
on
both the 19v and 130v power supplys, then with an oscilloscope, meter and
HV
probe go through a very lengthy diagnosis to determine what was causing
the
SG613 to fail. Even when all this was followed to a T and everything was
seemingly OK, the SG613 would short within 1 second of applying AC power
about
25% of the time, and another 25% of the time would fail within a couple
weeks.
So you had a 50/50 chance of actually fixing the set even when you did
everything right and used all original Sony parts.
Most shops in the late 70s wouldn't even touch one of these Sony's. Very
expensive and risky to repair. Definately not worth the effort now. These
were
about a $400 set and a darn good set for it's day, but it's day is done.
Ron

Some warnings about your Sony you are trying to repair.
1. Do not use generics, they lack an internal fuse and if you missed
any of the 30 some odd other parts that are bad, it will blow and
everything else you just replaced with also blow again. Gets
expensive after a while.
2. That is an ancient tv set. Are you sure it is worth fixing. Last
reliable source we had for the SG-613 had it listed at $48. You MUST
fix the cause of its failure BEFORE replacing it.

You can learn the hard way about that old chassis, it is NOT for
someone to try and repair who has little experience.

David

sabreusa@juno.com (leo) wrote in message
news:<c341a983.0405050551.5adbd8a3@posting.google.com>...
Hello all,
I am looking for the Sony part# SG613 for an old color TV anyone knows
where I can buy it. I found it on ebay but the person is selling more
than one part and I only need one.

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3813435515

Thanks