Question about JVC AV-60D501 60" Rear Projection Television

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TV will not power on.

My TV will not power on. This is the first time I have had this problem. I was also in the middle of ordering a focus block for the TV, now the TV want come on! The power light blanks about twice and then goes off.

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Re: TV will not power on.

Sorry my friend but I had this problem. You definately have to get a repairman out to fix it. The AC voltage regulator has gone bad. Good news is it will cost about 225 bucks to fix which is ALOT better than buying a new TV.

Posted on Dec 01, 2007

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Have a Sony KP-65WV600, already replaced d board once, and replaced convergence ic's once also. Now as soon as I turn unit on, turns to red screen and shuts off, video that is, audio works ok, noticed...

Check High voltage Block.After replacing ic's (STK convergence ic's) you need to adjust Black&White scale.Turn ALL screen adjustments to min.Turn TV on and adjust screen slowly for each gun (I would start with Red first ) when you came to point that you see red background with white lines across, at that point G2 is too high (that will cause TV to shut down,don't worry just lowered adjustment and turn tv back on) so adjust to proper voltage and do the same for each gun.After that, adjust focus for each gun (again all controls are on High Voltage Block and HVB is mounted on front of your tv after you take speaker gril out) black box with 6 controls' screen RGB, focus RGB .
You should do that in dark room in order to get perfect Black&White scale,when all guns are adjusted properly you will see grey picture.Make sure 'Color" adjustment on your display is down to 0. Another step is convergence adjustment ,Flash Focus etc.If TV stil shuts off after all, your Red picture tube is short inside,take crt pcb from tube,make sure TV is unpluged from power before that, and turn Tv on .If stays On tube need replacment...good luck)

Aug 22, 2011 | Sony KP-65WV600 65" Rear Projection...


How to adjust the screen drive on CRT projection TVs.

When your projection TV is getting darker and darker what do you do?

You need to turn up the screen drive on the CRTs.

As the CRTs age the elements get coated with oxide and do not put out the same amount of light. As the light output diminishes you turn up the setting on the menu but eventually there is no more adjustment.This is because the on screen menus are limited by the settings on the focus divider block.

Before turning the set off set the brightness and contrast to their center position in the on screen menu. Now turn the set off.

The next thing you need to do is unplug the set.

With the power removed remove the lower back cover. Usually this requires removing the screws marked with an arrow. The process should be obvious.

Once the back is removed locate the focus/divider block. It will be a small (4 x 4 inch) unit mounted to the frame (normally) and have wires coming from the high voltage section. It is almost always mounted on the right side of the unit on the frame holding the three CRTs.

The wires plugged into the unit will be large, soft rubber and red in color. There should be three wires. They should attach to the flyback which is the high voltage transformer. The flyback (high voltage transformer) will be mounted on the power/high voltage board and is almost always on the right side of the chassis.

The flyback generally is a squarish box near the rear of the unit and on the same board as the low voltage power supply. It may have a round cylinder in the middle, or not, but it will have a square laminated steel bar running through the middle of it. It will also be where the wires from the focus divider block, mentioned previously, terminate.

To set the drives you will need to power the unit up. Be very careful and try to keep one hand in your pocket at all times. There are lethal voltages inside this unit and if you do not feel confident working on it stop now.

When the unit has warmed up try to tune it to a black and white channel or a public information channel. If neither is available find a channel with alot of black and white in it. This is necessary to get the drives set properly.

Looking at the rear of the focus/divider block you should see 6 shafts. The top three are for focus. Do not touch them. The bottom three are the ones you want to change.

They should be left to right, red, green, blue guns. Turn each one in turn up until you see the color in the black of the picture then turn slightly down (until the color rastor disappears). Do each in turn until all are maximized.
They will be maximized and set correctly when the raster is just on the verge of being visible, but not visible.

The brightness should now be as good as it gets. You may need to turn up the screen menu drives for brightness or contrast to get the picture you were looking for.

Thanks for using FixYa and for the excellent rating.


on Nov 13, 2010 | Sony Grand WEGA KDF-42WE655 42" Rear...

1 Answer

We changed the coolant fluids in the blue and green and now the screen is clear in the middle and blurry on sides and color is off on sides also??

You are going to have to Realine the Convergence and set Focus to each Tube on the Screen/Focus block Control.Their is 3 on Top Focus and 3 controls under them for screen drive R/G/B.
You will need to know how to Enter Service Menu:
Do you still have manual that came with TV?

Jul 24, 2011 | Philips 50P8341 50" Rear Projection...

1 Answer

I have a 57h94 projection tv light comes can hear power but ni picture

High voltage problem on deflection board, you can try turning up the screen voltage on the focus block which is only a temporary fix. Eventually you will need to get a service center to repair the deflection board...... focus block is in the front of the TV you will have to remove the front cover bezel...

Nov 12, 2010 | Toshiba 57H94 57" Rear Projection HDTV

1 Answer

Need to purchase a SCREEN FOCUS BLOCK. Where could I buy it.

Hi, this will probably **** you off but here goes anyway, That part can be purchased from on line parts places but my advice to you is "leave it to a tv tech". The part will NOT come adjusted to your tv, it has to be wired in correctly or you WILL damage your tv big time, once installed the set has to be turned on and all 6 controls WILL have to be adjusted, your dealing with a high voltage device and it can kill you if you handle it incorrectly once powered on, in other words you will probably never get it adjusted right and it`s dangerous to do by a non tech, just trying to help you out here, video-tek

May 29, 2009 | Hitachi 51F59 51" HDTV Projection...

1 Answer

Red will not focus but blue will ...perfect focus stops in middle


Mar 15, 2009 | Samsung HCN4727W 47" Rear Projection...

1 Answer

5 blinks, Sony KP-65WS500 stays up only with one CRT gun at a time....

5 times blinks shows White Balance error in tv. You need to adjust Screen Volts (G2) and problem will resolve. Screen volts controls located at Focus Block as shown in below picture.

d90a778.jpg Need further help, please let me know.

Sep 09, 2008 | Sony KP-65WS500 65" Rear Projection...

1 Answer

No picture or sound

OK to help assist everyone having the BLUE HUE and CURVED LINES Issue on their Rear Projection HDTV no matter their model. Here are the steps to take. The first thing to check is the FOCUS BLOCK or G2 Focus Transformer or CRX F-Pack. I have replaced mine, however it didn't resolve the issue. I am onto the next item the CRT Board for Blue (Which is the board under one of the three color lamps inside your tv) Please see photo below (if photo is not large enough below go to link to review notes as well) If the CRT Board is not it, then the next step will be the Signal Board which is a larger board in the back. In a week I will have a picture of both.

  1. Remove the outside cover
  2. Remove the wood plank/panel
  3. In the front is the G2 Focus Block/Transformer, while set is on turn the top 3 knobs till the screen goes black/dark grey.
  4. adjusting the colors till you receive the desired or normal color/picture.
  5. Once you have received the proper color/picture tap the side of the Focus Block.
  6. IF The colors go out of wack again and the blue comes back strong then this "CAN BE" the Focus Block.

Replace the G2 Focus Block aka Focus Transformer, if Hitachi it's called a CRX F-Pack. This item will cost about $50. Not expensive. You will likely need a soldiering iron. DO TURN OFF & UNPLUG THE TV WHEN INSERTING ANY METAL OBJECTS INTO THE TV!!

FOLLOW THE PHOTOS/DIAGRAM in link below for assistance in the above instructions. I will post my next process since it was not my Focus Block that was an issue.

ONE SOLID PHOTO Go to URL CLICK HERE, click on that image to enlarge. Hope this helps you all out!

Feb 23, 2008 | Sony KP-57WV700 57" Rear Projection HDTV

2 Answers

Blurred picture

try the focus adjustment knob on the back of the flyback transformer....if that does not work...order a focus block

Feb 03, 2008 | Hitachi 53UWX10B 53" Rear Projection...

1 Answer

Focus/Screen block bad

This part is called the Focus Block and has 6 controls, 3 for focus and 3 for screen. The screen is the overall brightness of the CRT and the focus is the sharpness. The part can be ordered by description from any RCA parts distributor but the controls should be set by someone with experience.

Jun 26, 2007 | GE D52GW12 52" Rear Projection HDTV-Ready...

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