Question about Zenith B32A24Z 32" TV

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Have A focus problem.

Had board 9-1270 repaired, had no picture. Have picture now but can not focus.Focus control has no effect. Upper or lower no effect. What is my problem? MODEL NO. SLB3585BT.

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Sounds like your yoke is not adjusted. The yoke is made up of magnets and must be alligned one color at a time.

good luck---------tomtaso

Posted on Dec 01, 2007


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Posted on Jan 02, 2017


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1 Answer

Can't bring into focus the entire image. Corners defocused and have green/purple halos.

If it is a known problem, then it is a manufacturing error. They have just admitted that is a MISPLACED washer. Have Optima repair it free of charge.

Mar 28, 2017 | Optoma Office Equipment & Supplies

1 Answer

Fuji finepix s3100has no power even with new batteries

I have this problem also with Fuji Z90 model.
Problem is fixed and focus now working ok.
Camera is fall down and after when camera was started giving sound click click from focus big motor and error on screen Focus error
Focus ( lens ) was open ( small cover on top bellow sticker ) Small "snail" gear is taked out . Two sliding segment adjusted for focus ( upper full up and lower full down - beware about spring inside below this focus pins )and snail is inserted back. Camera started and focus start working. I need to make small adjustment . Reason when camera is started picture is not clear and before using camera i need to do full zoom in and back zoom out. After this picture is crystal clear and all working ok.

Dec 17, 2012 | Fuji FinePix S304 Digital Camera

1 Answer

Picture goes dark but there is sound

There are many cause of dark picture symptom of standard television.First thing to do is try to adjust the screen control adjustment located at the flyback at the lower parts.There are two flyback adjustment the focus and screen adjustment.The upper level is focus and the lower is screen control. If check also the CRT socket board section.This CRT board is compose of high voltage terminal coming from the high voltage supply.Check if there's a cold solder in CRT socket terminal and other parts around the CRT socket.The heater supply,the RGB cathode supply,and the screen supply are the supply of picture tube to be lights up.So try to resolder those parts of the TV.Avoid short circuit in the PCB board.Hope it will help you.Thanks..

Aug 29, 2011 | Sharp Televison & Video

1 Answer

I have a RCA 32V432T 36in...the screen is light blue with white horizontal looks like a film in front of the actual picture...there is still audio though. what's going on?

There are two main causes for this fault. The first one is, advanced screen voltage to the screen grid of picture tube. The second one is leaky blue video output transisotr.
Just open your TV, and locate the screen control. It usually can be located with LOT [Line Output Transformer]. There will be two adjustable controls integrated to this LOT, marked as screen and focus. Out of which, the lower one will be for screen adjustment, and the upper one for focus adjustment. Just rotate the screen control [the lower one] to a little counterclockwise, so that the thin horoizontal lines on the screen just fade of. Adjustment is critical and should be done with care, and a small movement may just be enough. If it does not help you, repalce the blue video output transistor. This part can be located at the bace card [the printed circuit board fitted to the neck of the picture tube]. Locate it, replace it. OK.

Apr 17, 2011 | RCA 32V420T 32" TV

1 Answer

Pix is dim and too big for screen

Your TVs focus voltage has some trouble. You gets an out of focus piture now. There may be two reasons for this fault. The first one is, the focus pack trouble. The second one is picture tube base socket trouble. Both are repairable.
Focus pack is integrated with Line Output Transformer [LOT], and picture tube base socket is soldered directly to picture tube base card. You just open the TV and check whether there is any "Shhhh" sound comes from the neck side of the picture tube while tv is working. If it is so, you will get a smell of Ozone gas also. If it is so, switch off the set and unplug it from mains socket, pull out picture tube base card from the picture tube neck. Be gentle, and not make any shakes while pulling it out. The neck part of the picture tube is very thin relative to its other portions of the picture tube, and have a chance to break. So be carefull when you pull it out. You can see the base socket soldered directly to it. There will be two wires also, for some sets only one, attached to it. Normally the red wire going to a slot in the socket is focus wire, through which focus voltage reaches to the relative pin of the picture tube. Just detach the wire out from the socket, desolder it out and go for a similar type, and pin confuguration. Replacing it will solve your problem. After replacing the picture tube socket, a slight focus adjustment may be needed. Sometimes may not. The focus voltage can be adjusted. Its adjustment control is located on the above said [LOT]. There will be two adjustment controls, marked Focus and Screen. Out of which the upper one is for focus adjustment, and the lower one is for screen adjustment as its markings states. You just adjust the focus control very little, while watching the picture on your tv screen. Take menu display for reference, rather than moving pictures for focus adjustment, so that you will get a stationary image for reference.
The second stated trouble is related to the screen-focus pack integrated with the [LOT] itself. If it has got damaged, there is no other way than replacing the [LOT]. If so desolder it out from the circuit board, after detaching the anode cap from the top of the picture tube,and focus and screen wires. Before detaching the anode cap, care must be taken, as there may be some extra high tension voltage charge on the final anode of the picture tube, which is dangerous. You must discharge it before unpluging it, otherwise you may get electric shock from it, even after the Tv is switched off and unpluged from the wall socket. The charge may retain there for hours. So be careful.
If you have any more doubts, inform me through Fixya. Ok.

Nov 05, 2010 | Sanyo DS24424 24" TV

1 Answer

Lines on the screen

If the lines are thin and spreaded allover the screen from top to bottom, and are equally spaced around one inch of so apart, it will be a screen voltage rise problem. You just decrese both brightness, contrast and colour contols of your TV to zero position, and look into, where there is lines are visible on the screen or not. You should notice this in a drak room, so as to see is well, or close all the doors and windows to make the circumstance to a little bit dark.
If you can see these lines still, it is clear evidence of the above said fault. To rectify this fault you should open your TV. Open the back cover of the TV, and you will see a Line Output Transformer. It is otherwse known as LOT. It can be recoganiized easely as it its size. Normally it will look black in colour and a thick wire from it goes the picture tube's final anode, and look like it is stcked to it with the help of a rubber ******. Other two wires from it goes to the picture tube base board. These two wires are, one for focus and the other for screen.
There will be two controls on the lot, which can be varied, and seem to be integrated with LOT. Among, upper one is for focus adjustment, and lower one is for screen adjustment. Both will be marked as "Screen" and "Focus". You just find out the screen control. With the healp of a screw driver it can be adjusted.
Keep the TV on, Brightness, Contrast and colour to minimum, adjust this control to a little [ a very little movement should be done, otherwise the picture will be get blurred], to just eliminate the lines you see on the screen. Focus control and screen controls are interactable, that is adjusting one may effect the other. After eliminating these lines just up the brightness and contrast control to at about their mid position and press the menu button on the TV or remote control to get the menu screen. Look at the letterings, and if it seem to be out of focus only, just adjust the focus contorl to get well focused captions. The adjustments are hot, that is while the TV is operating. Take care. Ok.

Oct 26, 2010 | Mitsubishi CS-40503 TV

1 Answer

Toshiba 57hx81 tv has a bow at bottom of screen and blue in color tried using toush focus & got error then tried to focus manually & couldn't get the bottom lines to focus all the way down

noted in the owners manual, if auto focus returns message "error" , it suggests to use manual convergence setting..failing that, is it resonable to suspect that the STK-392-110 (convergence (2)chips)are beginning to fail, bendt horizonital lines is the effect. you can check all the resistors and pico fuses (power board)near the chips for shorts, chances are they are ok. seeing that there is somewhat of a picture (kinda like 3-d). i would repaired it!.. while your there do the hyperboard repair as well by replacing the 10 caps with 16v@10uf. (causing a wavy vertical distortion effect).

Jan 12, 2010 | Toshiba 57HX81 57" Rear Projection...

2 Answers


Most of these sets have a SCREEN/FOCUS block---usually all black with 6 controls----you need to look close at it as one row of 3 will be screen controls---don't touch those----the other 3 will be FOCUS- MARKED in little letters will be r,g,b(red,green blue). TWO ways to adjust the focus: 1. carefully locate the blue focus control and adjust to see if blue will improve in focus. 2. each of the 3 large lens where the picture comes out have a wing nut and a slot--you can loosen the nut and turn the lens---usually best focus that way is if the part that turns is in the middle of the available area to move it.

I should point out that all projection sets intentionally de focus the blue--the lines if blue should be clear but never as perfect as green or red--this is normal.

I do this here for free so if this has been helpful give me a vote here.

if you need direct help:

Aug 20, 2009 | Akai PT5598HD 55" Rear Projection...

1 Answer

One half of picture is distorted

to create the total geometry in the tv is needed a system called Convergence.Convergence amplifiers are damaged in this unit, magic focus cannot work because magic focus works to level computer and controls the amplifiers damaged. this repair is for a technician because an adjustment is needed after the amplifier's replacement.

Oct 09, 2008 | Hitachi 61SBX59B 61" Rear Projection...

1 Answer


There are several factors that can contribute to getting better focus and improved results. 1. Auto Focus / Auto Exposure lock. Press the shutter button down HALF WAY. The camera will attempt to adjust exposure to the current lighting environment for maximum benefit. Then the camera will automatically correct the focus based on objects in the center of the display. This process usually takes about two to three seconds. 2. Be sure not to cover the sensor on the front of the camera with your finger. This will disable the automatic focus and exposure controls. 3. Only us the MACRO MODE for CLOSE-UP photography. Be sure to use MACRO MODE if you are taking pictures of an object at less than six inches away. Be sure not to use Macro Mode for Normal Photography. Using MACRO MODE improperly will result in poor focus (also known as 'fuzzy pictures'). 4. Motion can cause a "blur" effect. Either motion of the subject, or motion by the photographer. This phenomenon is just like traditional photography. Moving objects may appear to blur, and this will be even more evident in lower lighting situations as the shutter speed slows down to allow for more light. The shutter will react faster in bright light, and motion will not be as apparent.

Sep 11, 2005 | Toshiba Sora PDR-T30 Digital Camera

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