Question about Sony KP-48S75 48" Rear Projection Television

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G-board fir KP-48S75

Where can i get a g board for this rear projection tv.
Sears wants 674.00 to fix this problem. The red and Blue have seperated and dips on the screen. Sears told us it was the g board.
can you help????

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I been replied you in your post, check it out..

http://www.fixya.com/support/t1129194-g_board

Posted on Oct 13, 2008

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Standby/timer light stays on red. no picture or sound on tv.


this is a simple capacitor fix at your local tv guy..should be 100 to $150 max

Apr 09, 2014 | Sony KP-48S75 48" Rear Projection...

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The colors are seperating making it look like 3d


Hi,
This is symptom of convergence output chips failure in rear projection tv, replace convergence ouput ICs in tv to get it fixed.
If you are handy with electronics stuff repair and can solder parts in circuit board then check 2 big black ICs mounted with aluminum heat sink on D board of tv, replace them with same numbers and if you feel uncomfortable working with tv circuit boards, local tech will help you.
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We have a Sony KP-48S75 48 rear projection television The picture has colors of blue, green, and red around the figures on the screen. what is wrong. Can this part be replaced without going to a...


Its convergence ICs, the STKs gone bad. The repair can be done only by person who knows about PCBs with embedded components. and good with soldering. You can down load the service manual for your tv from this fixya site tech support and decide how you would like to do it. You can check for costs and more FAQs on www.fixurtvs.com. If you are not sure best bet is to go for professional repair. Thanks if you took time to vote for me.

Mar 21, 2010 | Sony KP-48S75 48" Rear Projection...

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Sony KP-51WS510 51 in. Rear Projection Keeps blinking 5 times. The red and green projectors are working fine, but the blue is not working. Sears service replaced the power supply, and the first board, then...


You may want to recheck your connections coming off the blue tube to the board. Also check the IC links/Pico fuses on the power board. I have a repair manual for this Tv if you need it. shanesebay304@yahoo.com

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1 Answer

Sony kp-48s75, shadow or ghosting picture


The most likely cause is shorted convergence chips and possibly a few pico fuses.

These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired. Convergence problems are very common on all Projection TV sets including Sony,Samsung,JVC,Philip Magnavox,Panasonic,Akai,Pioneer2_bing.gif Hitachi,Mitsubishi,Zenith and others.
You can get a convergenece repair kit with instructions from the links below.

Here are some of the most common problems with these sets...

Problem #1) Convergence

Yours may have one or more of the following symptoms...

*Screen Looks 3-D
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Problem #2
Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

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Jan 07, 2009 | Sony KP-48S75 48" Rear Projection...

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my sony red light flash.but it will not turn on just clicks

Nov 26, 2008 | Sony KP-48S75 48" Rear Projection...

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Here are part numbers of plate diffusion of Sony KP-48S75 TV

4-070-280-11 PLATE (L), DIFFUSION

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1 Answer

Kp-48s75 sony rear projection


does a red LED ever blink on the front panel. if you ever get 5 blinks than you are most likely haveing CRT failure the IK lines arent right and it is blanking the video.

Feb 19, 2008 | Sony KP-48S75 48" Rear Projection...

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If still under warranty or if you have no electronic repair experience you should take the set back to the shop or to a repair person. Some of the solutions described below can be dangerous, TV's are very hazardous to service. Even when plugged out, TV's can store very high voltages. Try the suggestions on this post from the Troubleshooting page: http://www.fixya.com/problems-solutions/t101379,p228476/Sony-KP-48S75-48-in-Rear-Projection-Television.aspx

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