Zenith TV Jan1995 model SM2568S picture compressed

[Thaqalain]

My TV shows compressed picture in middle strip area,while some times it
shows full screen may be if kept on for long time.Sometimes it's
picture jump to and fro from middle srip to full screen.
Any help pls,what is remote control code for this model?

 

[[email protected]]

Repair the vertical ic output circuit. May be solder connections, may
be failing capacitors. What do you mean by remote control code? All
Zenith's from that era use pretty much the same remote control
information, just some remotes are missing buttons.

 

[Thaqalain]

Above model was manufactured in U.S.I tried all JENSEN Zenith TV listed
remote control codes,but none of them working.

 

[[email protected]]

Sounds like you either need to find another Zenith tv to try the remote
on, or try a different remote control.

 

[Thaqalain]

I tried to restore full vertical picture by turning a small white
plastic knob,but picture shortened to middle strip after closing body
and at every restart.

 

[Thaqalain]

I noticed when I pushed a metal mounting/upstand ,picture became
vertical.I am looking to put a micro shim underside to get full picture
permanently.
Sometimes I tried to make full vertical coverage of screen by turning
knob of R2112.
Any other suggestions pls.

 

[Thaqalain]

Here is some other cross info:
Chassis C10,
Service Maual (CM-146/C-10(A),
Part Number 923-3218

 

[[email protected]]

Why not just find and repair the bad solder connections that are
causing the problem?

 

[Thaqalain]

My eyes can't find bad solder in vicinity of these,I need a microscope
and must know where is weak joint and how to touch up it.
Tell me how I recognize it as a weak joint,I mean what are
symbols/symptoms.I don't have simple soldering tools,if I know sure
this that is to be soldered than I may purchase simple solder tools.

 

[Rinse Cycle]

My eyes can't find bad solder in vicinity of these,I need a microscope
and must know where is weak joint and how to touch up it.
Tell me how I recognize it as a weak joint,I mean what are
symbols/symptoms.I don't have simple soldering tools,if I know sure
this that is to be soldered than I may purchase simple solder tools.

People without 'simple soldering tools' shouldn't be poking around in
televisions.

'Nuff said.

 

[JANA]

Why not find and repair the bad solder connection? The problem is going to
get worse as time goes on.

--

JANA
_____


I noticed when I pushed a metal mounting/upstand ,picture became
vertical.I am looking to put a micro shim underside to get full picture
permanently.
Sometimes I tried to make full vertical coverage of screen by turning
knob of R2112.
Any other suggestions pls.

 

[Jumpster Jiver]

I have purchased PEMCON soldering kit from Wall Mart,now I need to know
which part# to be touched up?

Part numbers ? Look over the whole circuit board and touch up any
suspect areas.
I didn't read your first post but it sounds like you should concentrate
on the vertical deflection area. If you don't know where to look for
this area on the circuit board then please don't open your TV.