JVC TV Fault

[news.freeserve.net]

Hi,

I have a JVC AV-21TS2EK TV that has developed a fault. A few minutes after
power-on, the picture becomes very liney, and disappears to the bottom half
of the screen.
Constant pressure on the top back left of the TV stops it happening! Any
ideas?

Thanks in advance

Jez

 

[B.Belle]

maybe the poweramplifier for the vertikal deflection is defektive.

B.Belle

"news.freeserve.net" <jeznoway@jcahl.freeserve.co.uk> schrieb im Newsbeitrag
news:bhkreg$mfs$1@news7.svr.pol.co.uk...

Hi,

I have a JVC AV-21TS2EK TV that has developed a fault. A few minutes after
power-on, the picture becomes very liney, and disappears to the bottom
half
of the screen.
Constant pressure on the top back left of the TV stops it happening! Any
ideas?

Thanks in advance

Jez

 

[Arthur Jernberg]

ESR the caps in the vertical deflection and supply circuits, also may
require the vertical output ic.
"B.Belle" <info@belle-online.de> wrote in message
news:bhks7l$nb0$07$1@news.t-online.com...

maybe the poweramplifier for the vertikal deflection is defektive.

B.Belle

"news.freeserve.net" <jeznoway@jcahl.freeserve.co.uk> schrieb im
Newsbeitrag
news:bhkreg$mfs$1@news7.svr.pol.co.uk...
Hi,

I have a JVC AV-21TS2EK TV that has developed a fault. A few minutes
after
power-on, the picture becomes very liney, and disappears to the bottom
half
of the screen.
Constant pressure on the top back left of the TV stops it happening! Any
ideas?

Thanks in advance

Jez

 

[Dan]

Suspect cold/bad, solder joints, in the vertical area. Well worth taking to
your set to a shop for an estimate.

Dan
"news.freeserve.net" <jeznoway@jcahl.freeserve.co.uk> wrote in message
news:bhkreg$mfs$1@news7.svr.pol.co.uk...

Hi,

I have a JVC AV-21TS2EK TV that has developed a fault. A few minutes after
power-on, the picture becomes very liney, and disappears to the bottom
half
of the screen.
Constant pressure on the top back left of the TV stops it happening! Any
ideas?

Thanks in advance

Jez

 

[john]

"Dan" <dcauley@majro.dhs.org> wrote in message news:<sbs%a.74659$tQ2.1896590@news1.telusplanet.net>...

Suspect cold/bad, solder joints, in the vertical area. Well worth taking to
your set to a shop for an estimate.

Dan
"news.freeserve.net" <jeznoway@jcahl.freeserve.co.uk> wrote in message
news:bhkreg$mfs$1@news7.svr.pol.co.uk...
Hi,

I have a JVC AV-21TS2EK TV that has developed a fault. A few minutes after
power-on, the picture becomes very liney, and disappears to the bottom
half
of the screen.
Constant pressure on the top back left of the TV stops it happening! Any
ideas?

Thanks in advance

Jez

Looks like a dry joint on the field output chip. Have a good look with
a magnifying glass.

Rossi 46.