Picture is fairly clear except for horizontal lines across the screen can this be adjusted out?
SOURCE: Mitsubishi ws-55813 horizontal hold
When you say horizontally, do you mean it collapse or it scrambles. Because the 2 are different problems. If you pictures shrinks or collapse then it is in the vertical circuit. and if it scrambles itself almost like you can see the picture but it is broken up over and over again, then this is video problems in video circuit. Need more info
SOURCE: Horizontal Lines in picture
CHECK C2P08 100 UFD 16 V OFF PIN 3 OF IC2P03 (3.2 VOLT REGULATOR) ON THE SIGNAL PCB. HOPE THIS HELPS!
SOURCE: green horizontal lines on screen no picture
The green CRT's (color picutre tube or color wheel, or ballast) will need to be tested for replacement.
It is quite common with these tv's
You will need an ohmmeter and or voltmeter and test each component for currency and accuracy
SOURCE: Mitsubishi TV had horizontal lines across the screen and rolls up
Answer
ONE: Yes, the speaker mounted close/near to the set
can be a cause of mischief; please move it further away and see if that
helps clear up the problem. But, you must keep it away for several
days before you will know for sure because it takes some time to
degauss all the internal parts that may have become corrupted by the
magnets in the speaker.
TWO: Yes, any set can be repaired the question is cost and wisdom.
Old sets are sometimes not worthy of the repair simply because of the
likelyhood that another failure will follow soon after. A big screen
always invokes a repair charge of $200 and up. After a few of these you
will wish you had put all the money into a new set!
THREE: The lines are most likely a problem in the vertical blanking
circuits of the set. These are horizontal retrace lines that are
supposed to be blanked out during vertical retrace of the raster.
Think of it as a paintbrush that scans across the screen painting thin
lines and when you get to the bottom of the screen it goes quickly back
to the top, but during that time the horizontal, which is many times
faster, has made several sweeps; so it must be blanked out during the
retrace. The repair involves finding the guilty parts and replacing
them. Usually this repair runs over the $200 somewhat.
FOUR: Prior to calling in a service tech try a hard reset to see if
that will recover any of the circuit degradations. Merely unplug the
power cord and leave unplugged for 4 hours or more. It may help. Or,
it may not help; but worth a try since is won't cost you anything.
If the set is over 5 or 6 years of age it probably is not a condidate
for any expensive repair. On the other hand, it is a Toshiba - and
they make a fine set.
Hope this helps. Let me know if you have further thoughts.
SOURCE: Mitsubishi Big Screen TV has horizontal lines on start up
need replaice capacitors in vertical output cir.
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