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

2 Answers

No Power, standby light blinking, power cord in/out two quick clicks

Sony KP-48S75. Tonight, it was working perfectly then all of a sudden it just shut off. The TV will not power on either by remote or TV controls. Unplugging power and plugging back in produces two quick click sounds - the same sounds when the TV is turned on or off. Immediately after the 2 quick audible clicks (like turning it on then off really quickly), the standby light at the front starts to blink. I started to search the net and stumbled across this site. I have been looking for service manuals and schematics for an hour for this set, and found nothing for free .. yes, I am cheap, but so what. How similar is the KP48V75 manual compared to the KP48S75?

Posted by 0verkill on

  • Anonymous May 11, 2010

    iam not the most technical so i will just ask.what is a heatsink and flyback and where is it located on the tv itself

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2 Answers

Tashier

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I have a KP-53HS30 with the same problem. What is a flyback and where is it located? I'd like to try the things you suggested checking. Thanks.

Posted on Sep 26, 2007

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Sounds to me to be a shorted HOT transistor or short somewhere. the click sound is the switch mode power suppy powering up sensing a short and quickly shuts down. the hot transitor is mounted to a heatsink near your flyback. check for emitter to collector short. you can try replacing it if shorted and if lucky that all that was ..but if shorts again you looking at probably a bad flyback. good luck

Posted on Aug 17, 2007

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1 Answer

I need a remote control for kp48s75 sony projection t.v


Try website like Remotes.com to buy an original or very close to the original remote.

Nov 29, 2010 | Sony KP-48S75 48" Rear Projection...

1 Answer

MY TV HAS DOUBLE VISION WHAT CAN I DO TO FIX IT?


Most likely is an issue with transformers that control convergence. My old Mitsubishi had same problem twice...$300 for guy to fix first time..new set second time.

Oct 01, 2009 | Sony KP-48S75 48" Rear Projection...

1 Answer

Why wont my tv turn on ?


Need a powerboard replaced/repaired. If you are in waranty go through your manufacturer and work on a replacement.

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

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
*Colors wont align
*Screen may look distorted or warped
*No Audio/Video - TV Shuts down - May also make a constant chirping sound

Problem #2
Another common problem is dull or washed out video.

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

*Dull looking picture
*White looking picture
*Halos around objects
*Red/Orange looking picture

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

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

1 Answer

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


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

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

1 Answer

Broken the plate( F and L )difussion


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

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

4-058-455-11 PLATE (F), DIFFUSION

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

1 Answer

G-board fir KP-48S75


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

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

Oct 11, 2008 | Sony KP-48S75 48" Rear Projection...

2 Answers

Only picture in picture works


Your pip module has went south.The capicitators on the board have leaked and ruined the board.Agood tv repair man can bypass the module to get you a full screen picture again.The only problem is you will no longer have pip ability.

Mar 07, 2008 | Sony KP-48S75 48" Rear Projection...

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...

1 Answer

My tv is broken


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

Jun 18, 2006 | Sony KP-48S75 48" Rear Projection...

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