Loss of picture colour not teletext or channel indicator

Hello, Wonder if anyone can tell me if the problem i have can be fixed easily or should I just ditch the tv and buy another one?

I have Sony Trinitron KV-X2552U tv. Unfortunately and suddenly the colour picture will become black and white, maybe for a few seconds or usually for a couple of hours. Occasionally if you turn the tv off and on again (either remote or on the tv) the colour picture will return for a short while. There is no consistency for when it turns black and white and when it returns and it will do this throughout the time the tv is on. However, subtitles, channel indicator , volume control and teletext will all appear in colour all the time. I've tried changing cables and just got a new Ariel (needed one anyway) but the problem is still there.

Can anyone help

Thanks

SHook

SHook wrote:
Hello, Wonder if anyone can tell me if the problem i have can be fixed
easily or should I just ditch the tv and buy another one?

I have Sony Trinitron KV-X2552U tv. Unfortunately and suddenly the
colour picture will become black and white, maybe for a few seconds or
usually for a couple of hours. Occasionally if you turn the tv off and
on again (either remote or on the tv) the colour picture will return for
a short while.

Repair hints from
http://fileshare.eshop.bg/repair_tips.php?search_rt=AE-1C%20KVX2552U

"int colour replace trimmer CT332, short pin 11 of IC331 TDA4510 and
adjust trimmer CT332 for near stationary colour"

Should cost certainly less than a new TV!

--
Adrian C

"Adrian C" wrote in message
...
SHook wrote:
Hello, Wonder if anyone can tell me if the problem i have can be fixed
easily or should I just ditch the tv and buy another one?

I have Sony Trinitron KV-X2552U tv. Unfortunately and suddenly the colour
picture will become black and white, maybe for a few seconds or usually
for a couple of hours. Occasionally if you turn the tv off and on again
(either remote or on the tv) the colour picture will return for a short
while.

Repair hints from
http://fileshare.eshop.bg/repair_tips.php?search_rt=AE-1C%20KVX2552U

"int colour replace trimmer CT332, short pin 11 of IC331 TDA4510 and
adjust trimmer CT332 for near stationary colour"

Should cost certainly less than a new TV!

--
Adrian C

I bet it works OK from an RGB source. And I know nowt about tellys.

Bill

SHook wrote:
Hello, Wonder if anyone can tell me if the problem i have can be fixed
easily or should I just ditch the tv and buy another one?

I have Sony Trinitron KV-X2552U tv. Unfortunately and suddenly the
colour picture will become black and white, maybe for a few seconds or
usually for a couple of hours. Occasionally if you turn the tv off and
on again (either remote or on the tv) the colour picture will return for
a short while. There is no consistency for when it turns black and white
and when it returns and it will do this throughout the time the tv is
on. However, subtitles, channel indicator , volume control and teletext
will all appear in colour all the time. I've tried changing cables and
just got a new Ariel (needed one anyway) but the problem is still there.

Can anyone help

Thanks

SHook

This is a common fault on these telly's. It basically won't stay
repaired as the updated IC it requires (the PAL colour seperator chip)
is no longer available. The best fix is (as Bill mentioned) is to
connect it via the RGB scart to an RGB out Freeview or Sky box. This
bypasses the faulty circuit.
Dave

Dave Spam wrote:
This is a common fault on these telly's. It basically won't stay
repaired as the updated IC it requires (the PAL colour seperator chip)
is no longer available.

CPC is showing SCTDA4510 (unbranded) in stock (£1.37) at the moment so
maybe not all bad news. But what identifies it as 'updated'?

The best fix is (as Bill mentioned) is to
connect it via the RGB scart to an RGB out Freeview or Sky box. This
bypasses the faulty circuit.

Easily the best solution, Bill is your man :-)

--
Adrian C

"Adrian C" wrote in message
...
Dave Spam wrote:
This is a common fault on these telly's. It basically won't stay repaired
as the updated IC it requires (the PAL colour seperator chip) is no
longer available.

CPC is showing SCTDA4510 (unbranded) in stock (£1.37) at the moment so
maybe not all bad news. But what identifies it as 'updated'?

The best fix is (as Bill mentioned) is to
connect it via the RGB scart to an RGB out Freeview or Sky box. This
bypasses the faulty circuit.

Easily the best solution, Bill is your man :-)

I don't know nowt abaht tellys. To prove it I have to tell you that the
other day I installed an Evesham widescreen wall mounted thing for someone
(as a favour). No problem with analogue and with the scart inputs, but
having read the instructions and the spec most carefully I concluded that
the set did not have DTT. I was a bit doubtful however because the
instructions contradicted themselves in other respects, so I messed around
for ages trying to make the thing switch to DTT and do an autotune, with no
success. Anyway, the customer came home and fiddled with the remote and did
something totally illogical (I can't recall just exactly what) and bugger me
the damn thing switched to DTT and we were able to tune it in. That made me
look a total fool of course. However, it finished the autotune and just sat
there, then after a few seconds said 'no signal'. After three tries we found
by trial and error that you have about 5 secs to press some button or other
or it doesn't memorise the channels. We then had to do a factory reset
because it had (for instance) put BBC1 on number 338. The we discovered that
the view DTT you have to select as if it's AV input 3, which is barmy. After
that it was OK. One hour forty minutes battling with the damned thing! Bah!

Bill

Adrian C wrote:
Dave Spam wrote:

This is a common fault on these telly's. It basically won't stay
repaired as the updated IC it requires (the PAL colour seperator chip)
is no longer available.


CPC is showing SCTDA4510 (unbranded) in stock (£1.37) at the moment so
maybe not all bad news. But what identifies it as 'updated'?

The best fix is (as Bill mentioned) is to

connect it via the RGB scart to an RGB out Freeview or Sky box. This
bypasses the faulty circuit.


Easily the best solution, Bill is your man :-)

I bought one of the TDA4510 chips from CPC. The chip supplied was marked
with a date code that showed it was 10 years old. It did not fix the
fault. Apparently the "fix" was to use a special revision available only
from Sony at the time. The revised part is no longer available.
Go the RGB route, it lasted over a year until the ex and TV left at the
same time. One went into a skip, I'll let you guess which one!
Dave

"SHook" wrote in message
...
Hello, Wonder if anyone can tell me if the problem i have can be fixed
easily or should I just ditch the tv and buy another one?

I have Sony Trinitron KV-X2552U tv. Unfortunately and suddenly the colour
picture will become black and white, maybe for a few seconds or usually for
a couple of hours. Occasionally if you turn the tv off and on again (either
remote or on the tv) the colour picture will return for a short while. There
is no consistency for when it turns black and white and when it returns and
it will do this throughout the time the tv is on. However, subtitles,
channel indicator , volume control and teletext will all appear in colour
all the time. I've tried changing cables and just got a new Ariel (needed
one anyway) but the problem is still there.

I am not sure how changing to new Ariel washing powder would help!


--
MESSAGE ENDS.
John Porcella

On Fri, 24 Mar 2006 23:55:23 -0000, "John Porcella"
wrote:

I am not sure how changing to new Ariel washing powder would help!

Don't consumers normally pronounce that brand as 'Aerial'?

Can anyone recall a TV advert for the stuff where the brand name is
definitively pronounced?

I will amuse myself in the local supermarket by asking the checkout
supervisor (who will be an expert on English Language) 'whats this
brand of powder called?'

Roger

"Bill Wright" wrote in message
...

"Adrian C" wrote in message
...
SHook wrote:
Hello, Wonder if anyone can tell me if the problem i have can be fixed
easily or should I just ditch the tv and buy another one?

I have Sony Trinitron KV-X2552U tv. Unfortunately and suddenly the
colour picture will become black and white, maybe for a few seconds or
usually for a couple of hours. Occasionally if you turn the tv off and
on again (either remote or on the tv) the colour picture will return for
a short while.

Repair hints from
http://fileshare.eshop.bg/repair_tips.php?search_rt=AE-1C%20KVX2552U

"int colour replace trimmer CT332, short pin 11 of IC331 TDA4510 and
adjust trimmer CT332 for near stationary colour"

Should cost certainly less than a new TV!

--
Adrian C

I bet it works OK from an RGB source. And I know nowt about tellys.

Bill


Yep Bill it does work. Thanks

However, I still have a VCR / DVD and PS2 to connect.

At the mo I think the digi box out is to the (RGB) tv, the digibox out to
VCR, VCR out to DVD? and DVD direct in to scart 2 of TV and PS2 in the front
normal audi/video and s-video connection.

so some colour some B/W - carnt have it all i suppose?
best
SHook