Sony TV KV-M1401U Picture Problem

[bigdaddy]

I have this TV and for few months it has started given me problem.
When I switch it on I get a horizontal line with sound. If I lift or
press the corner of the circuit board a little bit, the full picture
with sound appears. The picture is more stable when I lift the corner
at the scart side rather than pressing it. If I leave it at that, the
picture remains but unstable. Even walking on the carpet makes it
unstable.

I took out the Tuner and I did not find any dry or crack solder joints
even with 3.5 X Loop. I have examined the board under the light with
the same magnification and re soldered many joints which I thought
suspicious. Still the symptom persist.

I would like to know if anyone knows a specific cause and cure of it.
Thanks.

 

[Jeff Hackler]

I have this TV and for few months it has started given me problem.
When I switch it on I get a horizontal line with sound. If I lift or
press the corner of the circuit board a little bit, the full picture
with sound appears. The picture is more stable when I lift the corner
at the scart side rather than pressing it. If I leave it at that, the
picture remains but unstable. Even walking on the carpet makes it
unstable.

I took out the Tuner and I did not find any dry or crack solder joints
even with 3.5 X Loop. I have examined the board under the light with
the same magnification and re soldered many joints which I thought
suspicious. Still the symptom persist.

I would like to know if anyone knows a specific cause and cure of it.
Thanks.

THERE WAS AN ISSUE LIKE THIS WITH RCA TVS SOME TIME AGO. THERE WAS A
SWITCH THAT SAID NORMAL/SERVICE AND WHEN YOU SWITCHED IT TO SERVICE YOU
GOT A HORIZONTAL LINE. THEN THOSE MORONS WOULD CALL A SERVICE SHOP
BECAUSE THEY HAD THOUGHT THEY BROKE THEIR T.V.

 

[tvguy]

If you are sure that there are no more bad solding joints then I woul
suspect a crack some wheres on the mainbord. I would look close to th
vertical section for this

 

[tvguy]

Jeff Hacklerwrote
bigdaddy wrote

I have this TV and for few months it has started given me problem
When I switch it on I get a horizontal line with sound. If I lif o
press the corner of the circuit board a little bit, the ful pictur
with sound appears. The picture is more stable when I lift th corne
at the scart side rather than pressing it. If I leave it at that th
picture remains but unstable. Even walking on the carpet makes i
unstable

I took out the Tuner and I did not find any dry or crack solde joint
even with 3.5 X Loop. I have examined the board under the ligh wit
the same magnification and re soldered many joints which I though
suspicious. Still the symptom persist

I would like to know if anyone knows a specific cause and cure o it
Thanks

THERE WAS AN ISSUE LIKE THIS WITH RCA TVS SOME TIME AGO. THERE WAS
SWITCH THAT SAID NORMAL/SERVICE AND WHEN YOU SWITCHED IT TO SERVIC
YO
GOT A HORIZONTAL LINE. THEN THOSE MORONS WOULD CALL A SERVICE SHO
BECAUSE THEY HAD THOUGHT THEY BROKE THEIR T.V.[/quote:b9d57aabaf

I would like to tell this moron Jeff Hackler that there is no servic
switch in side this tv set

 

[Jeff Hackler]

Jeff Hacklerwrote:

I have this TV and for few months it has started given me problem.
When I switch it on I get a horizontal line with sound. If I lift or
press the corner of the circuit board a little bit, the full picture
with sound appears. The picture is more stable when I lift the corner
at the scart side rather than pressing it. If I leave it at that, the
picture remains but unstable. Even walking on the carpet makes it
unstable.

I took out the Tuner and I did not find any dry or crack solder joints
even with 3.5 X Loop. I have examined the board under the light with
the same magnification and re soldered many joints which I thought
suspicious. Still the symptom persist.

I would like to know if anyone knows a specific cause and cure of it.
Thanks.

THERE WAS AN ISSUE LIKE THIS WITH RCA TVS SOME TIME AGO. THERE WAS A
SWITCH THAT SAID NORMAL/SERVICE AND WHEN YOU SWITCHED IT TO SERVICE
YOU
GOT A HORIZONTAL LINE. THEN THOSE MORONS WOULD CALL A SERVICE SHOP
BECAUSE THEY HAD THOUGHT THEY BROKE THEIR T.V.[/quote:b9d57aabaf]


I would like to tell this moron Jeff Hackler that there is no service
switch in side this tv set.

DON'T HAVE TO. YOUR MOM ALREADY TOLD ME WHILE SHE SNORTED COCAINE OFF
MY DICK.

 

[bigdaddy]

If you are sure that there are no more bad solding joints then I would
suspect a crack some wheres on the mainbord. I would look close to the
vertical section for this.

Could you please be more precise as I haven't got the schematics for
this TV and do not know much about TV circuitry either.