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Re: I cant read the scroll on the bottom of the screen
You don't give a model number or age of the set so I can't be too specific, but there is an adjustment for picture size (it's actually termed "vertical height") in TV sets. Many newer sets make adjustments through a service menu using the remote control, but many sets have a physical adjustment control inside. I can't tell you how it is in your set, but you can take the back off and look at the circuit board. If you see a small round adjustment control (screwdriver slot for turning) marked "vertical size," "height," "vh" or something similar, that's the one. A little turn one way or the other will do the trick.
Now having said all that, it's also possible there may be bad capacitors in the set's vertical circuit. Is this a problem that just started, or that's gotten worse over time? Do you notice distortion at the top of the picture, like a person's head or other round object looking stretched out if it's at the top of the screen? If so, that's usually a sign of capacitor failure. There are a few in the vertical circuit, usually in the range of 1 to 10 mfd at 50 volts, and they commonly go bad with age. Without knowing what model TV you have I can't suggest specific part numbers.
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Don't know how far off you are, but if you can get on the web with it, there might be hope, The following took me 30 minutes to achieved, with all the mistakes between selecting and refreshes. I mostly used the scroll bar to place the screen were i could more or less select. Hi, I own a Sony Locationfree LF-X1 system with the LF-X1M (monitor). My
Touchscreen Stylus Calibration was so far off the map. it was very hard
to use, Only Half the Screen height could be affected. I finally
attempted to reinstall the firmware update and a message during step 2
said I did not need it because it was already present. Tried it twice
with same results. But Good News, It ressetted My calibration in the
process. My screen is now calibrated again.
As stated on the site IMPORTANT: This update can only be downloaded and installed with a LocationFree® unit.
PS. It is very hard to define were to press to do anything on Sony support site, I was for the most part off by 2 inches, You will often Have to scroll to the bottom of the page I managed to select:
Software Drivers Option 1 (I managed to select Canada, Then it reloaded th page Then I Selected LF-X1) Then hit Continue ( Not Easy )
Then got transferred to the download page, Agreed to conditions and finally reached the updating step screen as stated above.
If the screen backlight is not on, first try adjusting the brightness.
Press TV/AV button on remote to select TV mode.
Press the MENU button on the remote.
Using the arrow keys (navigation buttons), choose picture mode and adjust the brightness and contrast.
If your TV screen is still not lighting up in a dim room, then the backlight is broken.
You have 90 days labor and 1 year parts from date of purchase.
very common problem you have a verticle problem either you have filters that are leaking or your verticle ic is going bad in the shop depending what size this unit is and weither it is a tube set ot a lcd or plama or led
The problem is that your TV's backlight has gone out. Without this light, the display still works but you can't see anything. It may be that the backlight lamp has failed. But a more common cause is failure of parts called capacitors in the set's power supply.
I've never worked on a Polaroid, so I can't point you toward any specific parts numbers or values. You may be able to find more detailed information by searching for your specific model and "backlight repair". Capacitors are cylindrical parts that vary in size depending on their value. When bad, they often have tops that are bulging (should be flat) or have split open, and sometimes there may be discolored areas at their bottoms from leakage. Replacing bad ones with parts of the same capacitance value (marked on the part in mf or uf, as in 330uf) and a slightly higher voltage rating often fixes the problem. (Not always, because other things can go wrong.) Capacitors also have a polarity, so you need to make sure the new part goes in the right way.
A TV service shop could check the set if you can't find more information or don't want to try it yourself.