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

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G board i need to know if i can get a g board g=for the KP-48S75 and replace it myself.

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You can call Sony Direct Accessories & Parts Center (DAPC) at 1-800-488-7669
Explain Model number and Part description to C.S.Representative.
May they have Refurb boards in stock you dont have to pay much $$$.

Good Luck
Dals123

Posted on Oct 13, 2008

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Here is required details...
G board is Power Supply and Horizontal / Vertical Out board and part number is ...
" A-1316-471-A " G BOARD, COMPLETE
Its available in Tri-State Module Inc and price is approx $200

Posted on Oct 13, 2008

  • Shahid Electronics
    Shahid Electronics Oct 13, 2008

    Above info is for Sony KP-48S75 TV.
    You should do the job if you have sufficient knowledge of electronics and experience of tv repair.


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Tv have a problems known as a convergence problems,it dead.Tv have colors lines R,G,B mis alignments,have colors shadow pictures or 3D pictures look alike?Yes,the tv convergence board have dead 2 STK convergence ICS and some or all of it resistors too.These parts must be replaced on the tv convergence board to fix the tv convergence picture problems.The shop,will cost like $300-350 for parts and labors.

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No,this tv have no projection lamp,tv only have 3 CRTS tubes guns R,G,B.Ur tv have a problems known convergence problems,it dead.Tv have colors lines R,G,B mis alignments,have colors shadows pictures or 3D pictures look alike.The tv convergence board is dead.Tv convergence board,must be replace 2 STK convergence ICS and some or all of it resistors too.To fixed the tv convergence board to solved the tv convergence picture problems.The shop,will cost u like $300-350 for parts and labors.

Feb 17, 2011 | Sony KP-48S75 48" Rear Projection...

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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.

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Aug 04, 2009 | Sony KP-48S75 48" Rear Projection...

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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...

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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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You can see some more examples and find a fix herebb0cf99.png http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

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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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Oct 24, 2008 | Sony KP-48S75 48" Rear Projection...

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G-board fir KP-48S75


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

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

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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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