Question about Toshiba 46H83 46" Rear Projection HDTV-Ready Television

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Horizonatal lines on Toshiba 46H83

I have a Toshiba 46H83 about 3 years old. Last couple months the screen showed some horizontal lines for a few hours and then it cleared. The problem appears on all different type of input (DVD, Satelite, VCR, and regular TV channel). I had a repairman come by and he said it's leaking, but did not clarify. The screen came clear while the repairman was looking at it and reseating the connectors, so he left w/o charging. The problem came back a few hours later and I tried to reseat all connectors to see if it would help. No luck there. Is there any hope of getting this problem fixed or should I cut my loss and get a different TV? Thanks Hien

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Re: Horizonatal lines on Toshiba 46H83

If the repairman you had look at the set is used to working on projection sets, have him come back and Re-Solder Connector Px801 (Edge Connector) On The G-Hyper Module. (Pins 1 And 2 Of Px801 probably needs to be Re-Soldered) Otherwise, find a different repair person.

Posted on Dec 20, 2006

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Hi! My toshiba 2100td tv is over 10 years old and last few years it's having weird problems. When it's turned completely off (not in standby) and when I turn it on, the screen blinks for a 10-

The real problem here is its age, a lot of these sets of that age critically needed parts are just no longer available.

I repair them but the real risk is someone fixed it, a few months later it develops another problem etc etc etc.

Ten years is now a days a long life for a TV.

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Our three year ol Samsung TV has dark horizontal lines across the top of bottom of the screen. It is getting worse

Welcome to fixYa!

When you see lines like these across your LCD, it indicates a problem with your monitor's electrolytic capacitors.A faulty filter capacitor in the power supply board (SMPS board) can cause horizontal lines across your monitor screen.Horizontal screen lines are one of the most visible problems I see in LCD monitors & TV's that are 3-7 years old. It can happen as much from heat, humidity & less-than-ideal operating conditions, as it can from fluctuating current supply or manufacturing defects.

The way to repair horizontal screen lines is by removing the capacitors from the printed circuit board (PCB) and testing them with a LCR meter.

If it shows zero, there's your confirmation that the specific capacitor needs to be replaced.

now if you can replace them your welcome but i wont suggest that , cause you may break it more....!

any ways do comment if it helped you in any manner!

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After a period of time, vertical lines appear on the screen. Looks like jail bars. Sometimes turning the TV off, then back on will clear it. All channels. I replaced the projection bulb about 6 months...

no solution, same sounding problem though. last year we were getting lines through the screen and flickering and then the bulb burned out. had it replaced, 2 months later it did it again (they wouldn't stand behind the bulb so we had to buy a whole new one) this time had the bulb and ballast replaced because the repair guy said usually you have to replace both (why didn't they replace them both in the first place?) .. a year later and it's doing it again.. we get the flickering of the screen going on and off and horizontal lines that flicker across it. after turning the TV off and on a few times it seems to go away (or after it warms up)

i know know if i should order another bulb and ballast and spend the money for it to happen again or if it could be something else

let me know if you find a solution..

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I have a 4 year old Toshiba ZP38 36" screen. Over the last few days whenever i turn on the set the screen has no picture and is only showing a mixture of pixels/coloured blocks. The sound is perfect....

I have a zp38 Toshiba, My problem is no sound from exsternal front speakersand hardly any sound when any of the surround sound modes are selected iehall,theatre,disco,stadium.

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1 Answer

JVC TV 27" Black line on top of screen

This is for the original problem.. Not the second post.

It's a problem in the horizontal deflection circuit. The parts will be available, but you will be in for some daignostic repairs also to find out why it failing or if it has failed on it's own.
There should be a few caps near the IC (an LA7840) that could also be causing the problem. Click the link, it will make it easier to locate the part inside.

This is the kind of repair best left to a TV tech, but get it done now and it won't cost anywhere near as much as it will later.

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Lines on tv

Set starts, horizontal and vertical deflection work, HT ok, crt heaters ok, but no sound or picture
I turned the G2 voltage up and noticed a white screen with flyback lines, frame ok. I detected two badly soldered double diode rectifiers in the secondary part of the power supply ! I checked all other joints, and everything was ok !! success
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Check / replace R548, R549
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1 Answer

Samsung 42" HCM4216W Dim Horizontal line across screen

THIS HAS NOTHING TO DO WITH CONVERGENCE or any of the stk integrated circuits.There are few capacitors close to the vertical output ic, they are usually blue or red (could be 1000uf 50volts for e.g.)That where the problem is

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1 Answer

Is my Toshiba 57H81 worth repair?

Bounce horizontally usually means up and down,which relates

to the vertical output IC. Solder IC301, IC401 pin connects==try

again.You can easily isolate "bounce" problems by lightly

tapping on the vertical IC heatsink....Let me know if you need

further assistance.....T.


PS. Though hard to find, a qualified tech could do that repair

in home for 300. to 400.00...

Oct 20, 2007 | Toshiba 57H81 57" Rear Projection...

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