Sony KV-1913 & pattern generator

[Carl Jenkins]

Hello,

It has been a while since I aligned a TV
receiver and I was looking for a little
refresher on using a pattern generator.
I am using a Conar test pattern generator.
Coming out the back there is an antenna
terminal clip labelled "RF" and also 4
allegator clips with red, green, blue
and black rubber insulation on them.
I think they are labeled "Guns".
With the "RF" clip on the antenna
terminals I get a blank black raster.
My quandry is I can't recall how to
connect the 4 allegator clips to drive
the individual guns.
BTW: The receiver is a Sony KV-1913.

Thanks for any help.

Carl

 

[Wild Bill]

It's been too long since I last saw one of those, but I think there was a
way to tune the RF output to channel 3 or 4 (or maybe a wider choice),
possibly thru a hole in the cabinet with one of those plastic hex drivers.

That unit might've actually been a Heathkit, or I'm confusing the colored
clips with a different model than you have.

I vaguely remember fixing one of those to use it, and the ICs might've been
DTL. I don't really know how you'd go about checking that the output signals
actually work.

It wouldn't completely surprise me if someone else is still using one of
those Conar units, hopefully someone can be more help.

Good Luck
Cheers
WB
................

 

[Carl Jenkins]

Hello WB,

Now that you mention it I seem
to remember the guy who sold it
to me saying he built it from a
HeathKit. And yes, you can switch
the carrier freq between ch. 3
and 4 (ext. switch).
Now if I can just get the pattern
output signals hooked up to the
receiver's guns I would be camping
happily!

Thx,

Carl

 

[Jerry G.]

These clips are for making the guns go to cut off to have different colour
screens active. These are no longer used on the new generation of sets. If
you connect these clips to a modern set's CRT, you will do some damage to
the driver devices that drive the CRT guns.

The RF output is where the pattern is transmitted from. Most of these
generators were working on channel 3 or channel 4. You will probably find
that the resolution of the test patterns are not up to the standards of
today's generators for the modern sets, but it may allow you to do a basic
convergence alignment.

--

Jerry G. GLG Technologies GLG
==========================



Hello,

It has been a while since I aligned a TV
receiver and I was looking for a little
refresher on using a pattern generator.
I am using a Conar test pattern generator.
Coming out the back there is an antenna
terminal clip labelled "RF" and also 4
allegator clips with red, green, blue
and black rubber insulation on them.
I think they are labeled "Guns".
With the "RF" clip on the antenna
terminals I get a blank black raster.
My quandry is I can't recall how to
connect the 4 allegator clips to drive
the individual guns.
BTW: The receiver is a Sony KV-1913.

Thanks for any help.

Carl

 

[Carl Jenkins]

OK, thanx Jerry.
Even though the receiver is 1981
vintage I guess it could be considered
part of the new generation when compared
to this pattern generator. Hence the
receiver and pattern generator aren't
compatible for convergence setup. I
guess I'll scan the channels for a picture
with lots of white dots and lines and just
eyeball it. =8>)

CJ

 

[Jerry Greenberg]

Hi,

I would advise NOT to use these clips even on the set you have. The
clips you have would be good on the older tube sets probably up to
about 1975 or so.


Jerry G.
========

 

[Sofie]

Carl Jenkins:
These old pattern generators, no matter who made them, are just about
useless and even if you can get it hooked up and working, the patterns are
crummy, imprecise, and especially the color patterns are inadequate. A
easier way that is fairly cheap is to purchase a test pattern DVD to play in
your DVD player.... the quality is excellent, the patterns accurate, and the
color patterns are clean and useful..... even if you do not have A/V inputs
on your television you can run the video signal through an RF modulator or
your VCR..... while the quality will be degraded slightly, it will still
be miles ahead of any pattern that those old Conar, B&K, Hitchkok,
Heathkit, EICO, etc pattern generators could produce.
I hope that you got it cheap so you can sell it cheap or toss it.

 

[Carl Jenkins]

I see. I understand you can get video tapes
with lots of nifty alignment patterns, color
bars etc. on them. Do you happen to know how
much these would cost and if they come in
BetaMax format as well as VHS?
(I know I sound "out of the loop" as far as
repair goes these days but I gave up watching
TV around 1983 thus I don't own one. I've
studied television and video systems'
technology but I just can't watch 90% of
the programming! ...Uggh)

 

[Sofie]

Carl:
The video tapes are much better than the old pattern generators that we have
discussed, BUT the quality of the (VCR) in not nearly as good as a DVD and
in addition the VCR will NOT have the wide bandwidth or stability of the DVD
player.
These alignment tapes and DVDs are available from most electronics suppliers
such as MCM Electronics at
www.mcminone.com

 

[Sofie]

Carl:
The video tapes are much better than the old pattern generators that we have
discussed, BUT the quality of the (VCR) in not nearly as good as a DVD and
in addition the VCR will NOT have the wide bandwidth or stability of the DVD
player.
These alignment tapes and DVDs are available from most electronics suppliers
such as MCM Electronics at
www.mcminone.com

 

[Carl Jenkins]

Oh yeah. Back in the early '80's when I.B.M.'s
PC started to sell big, a co-worker of mine
who used to do TV/radio repairs knew I was
interested in video systems and asked me if
I wanted to buy all his old shop's equipment
as he was going into computers exclusively.
I got a 'scope, marker/sweep generator, the
pattern generator as well as boxes full of
tubes and cables for about $60.00 back then.
No big loss and I did use them to fix a few
receivers back then but I guess it's time to
pitch them and move into the 21st. century.
Thanx for the test DVD/tape info.

Carl