Question about Hitachi Televison & Video
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
Green CRT bad = take off lower front cover, remove access panel
locate screen / focus block.....turn green screen control slightly
Posted on Dec 21, 2007
SOURCE: sony 65 inch rear projection
behind the front grille there is a wooden panel remove it and yo will see a small black epoxy box with 6 knobs sticking out from it.
with the color turned down all the way, look closely for r,g,b on the box beside each knob this denotes which knob is for which color.
you need to adjust the 1 marked g on the bottom row. this adjusts the green bias to the green tube. this will get rid off the whiteish lines. adjust this knob counterclockwise in a darkened room untill the color shows a black and white picture. adjust slowly as the set will be monitoring what you are doing and will adjust itself as you adjust. bring the green down just enough so you don't see anything, make sure that you don't see red or blue either, if you do also adjust untill you don't see any color. these adjustments should be done with the input set to a video input that has no signal coming in the set will show the input label and nothing else.
when you have the raster( screen ) all dark you can go to an input with a signal and make sure the image is black and white adjust the bias of the color that is too much so that it is black and white.
hope this makes sense to you. now turn the user color control back to where you want it.you are done. reassemble, enjoy
you might have to do this again in a few months as the control you have adjusted are dirty and can't be cleaned with a cleaner.
moving these controls cleans them but the color balance procedure would have to be completed after such movement of these contols and any quick movement would have to be done with the set turned off. a quick back and forth movement will do a better job cleaning the tracks inside that adjustmet block but will mean you will need to do the setup adjustment all over again in order to get the screen blank and the color to balance to black and white. the top 3 knobs are for focus of the individual colos only adjust if the red, green or blue isn't sharp, you can try these to see with out doing harm. finally if thebias is too low then th lifgt on the front of the set might blink at you and the auto alignment might get part way through and stop. if this happens you need to bring the bias adjustment back up slightly. adjust only the bias for the tube that has too much color to start with and if this happens you will know that the bias control you just adjusted is the 1 that needs to be adjusted slightly.
Posted on Jan 04, 2009
This is what you're going to do, Turn on the Tv and go to the service manual, if the green tint is still there, you have a defective dmd board, but if it's no there, then you have an issue with your video board
Posted on Jul 09, 2009
This model uses two convergence IC's----if 3 D one or both are bad.
Most of the time this set uses either two of the STK-392-110 OR THE STK-392-150 CHIPS.
Both chips and any bad protection resistors around them need to be replaced and the set adjusted.
If you are able to do the repair yourself total parts cost will be under 30 dollars.
Some history for you:
This set like all rear projection tube type sets uses two chips---the ones in your set are Black in color--about 2 1/2 inches wide X 1 1/2 inches tall and are on either one large or two smaller heat sinks with fins on them.
When the chips are installed a white grease called heat sink compound is applied to the metal back of each---the grease transfers heat from the chip quickly to the metal it is bolted to.
After some years the grease dries out from the heat and one of the chips goes instantly.
You can buy a pair of the chips for your set on Ebay for less than 15 dollars plus shipping--
If you cannot do the repair yourself--shop around your area---most shops charge 300-400 for this type of repair. Whoever you get to do it make sure BOTH chips are replaced or you will have the same problem in a few months.
If you open the set and locate the chips---they will have the full STK number printed on them in white letters----there are about 12 resistors around them that need to be looked at--if any are discolored they need to be replaced.
If a shop says it HAS TO GO TO THE SHOP keep looking as any good tech can do this repair right in your home in about 1 hour---I know as I have done hundreds of them.
IF you can solder and are handy I will give you general instructions on how to do the repair and what you need---some people I talk to can either do it or have a friend who can do it for them---let me know
I can tell you what you will need aside from the parts and how to proceed with the fix---
If all this helped rate this solution---I do this here for free.
IF YOU HAVE ANY QUESTIONS OR NEED ADVICE LET ME KNOW--I am here to help people.
Regards, SD TECH
Posted on Oct 30, 2009
Testimonial: "You truly are an expert! Thanks for the advice, don't think it could've been explained any better!"
Tips for a great answer:
Jun 07, 2011 | Hitachi 65S500 65" HDTV-Ready Rear...
Jul 21, 2010 | Hitachi 43UWX10B 43" Rear Projection...
May 05, 2010 | Hitachi 65SWX20B 65" Rear Projection...
Mar 20, 2010 | Hitachi 57UWX20B 57" Rear Projection...
Jul 08, 2008 | Hitachi 65S700 65" Rear Projection HDTV
Mar 26, 2008 | Toshiba TZ50V51 50" Rear Projection...
Jan 14, 2008 | Hitachi 65S500 65" HDTV-Ready Rear...
49 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: