Question about Sony KP-51HW40 51" Rear Projection Television

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Sony kp-51hw40, akb code 1 and hv code 1 tv would not shut off

My tv while in dvd video mode automatically changed to cable video and when i tried with the remote to go thru the video back to dvd video it wouldnt change to any other video mode except cable, when i tried turning the tv off it went right back on. hit the power button on the tv and it went off and right back on and still could not change the video mode except for cable video. pulled the plug and disconnected the coaxial from the satellite and let it stand a while then plugged it back in and everything back to normal..video mode were able to change and when i pulled the service mode codes with the remote i got AKB 1 and HV 1.
Fyi about 3 months ago i had the blue tube changed and I am not sure if those codes could have been from then or not. tv has been on for a couple of hours since and everything good.......If i had to randomly guess i would say possibly the green picture tube since i have read these Sony models had all three picture tube problems..Also it been really bad weather and reason i write that when this happened is maybe possibly the satellite had something to do with the problem....Any help or ideas or even an educated guess would be greatly appreciated.

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Jungle ic 203

Posted on Dec 27, 2008

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1 Answer

The word "receiver" in upper left corner of screen


Hello, you can go into the menu and rename the inputs to what you want example: input 1 can be cable box, input 2 DVD etc. In the menu, go to "inputs" to the side of each input there are several name choices to choose from....tks

Nov 09, 2013 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Code blinks 5 times? what code is this?


hello 5 blinks means, AKB circuit (automatic kine bias), the timer/standby indicator blinks for about 30 seconds then goes to the self-diagnosis function. Something is wrong with the video. Check video out, Q705, 732, 761 and other components on the C board, also check Q218, 219, 220 on the A board. In addition, unit could be in IK blanking, try turning up screen slightly

shaun

Nov 22, 2009 | Sony KP-51HW40 51" Rear Projection...

1 Answer

When tv is on for a while it gradually turns gree.


Could be the video driver for the green CRT, HV Block or a bad CRT.

N Sabre

Nov 08, 2009 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Sony Projection Tv Model KP-51HW40


With both of error codes flashing, the problem is trying to figure out wich one to focus on. The flashing 6 code is an indication of HV failure which would then cause a vertical failure(4 blink code). There are so many things that would cause this problem. I can narrow it down to the "D" board to fix your problem. If I were there to troubleshoot it, I could narrow it down further I.E. flyback, HV distribution block. I suggest getting a tech diagnose the exact problem. I wish I could narrow it down better for you. Please take time to rate this solution and if I can be of further assistance, let me know

Dec 13, 2008 | Sony KP-51HW40 51" Rear Projection...

4 Answers

Green flashes then tv turns off


or a new lamp. you could first replace the lamp.
the screen might work fine for a couple of seconds, but then it fades away or deteriorates. This means the lamp is going bad.

Aug 23, 2008 | Sony KP-51HW40 51" Rear Projection...

1 Answer

KP-51HW40 - Auto shut down problem


I had the same problem. i was told by one of these so-called experts @ fixya that my flyback transformer needed to be replaced (the 8 blinks on the standby was the indicator). but i recently replaced it and im having the same problem. sorry. no advice. good luck.

Jun 18, 2008 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Great Sound...no picture


v1 is your verticl scan has stoped for a reason,akb 1 is the feed back from the crt to the video ic, hv 1 is high voltage stop the set ,clear the error codes and start again record them and conpare the results for the true fault.

Sep 12, 2007 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Video inputs


How is this distorted? Does DVD only have Video/Audio jacks or do it have RF output connection and if so have you tried going inset that way? How does it looks with only Dvd Logo on? If Logo is ok then I would look for some other problem.

Sep 11, 2007 | Sony KP-51HW40 51" Rear Projection...

6 Answers

Blue Screen and TV shuts off


Yes, you are correct on the phrasing. The CRT's were a common issue with these units and all three must be replaced as sooner or later the green will follow the other two CRT's. It was a great model and had a beautiful picture when operating normally. The CRT's are costing about 200 each for rebuild as the green and blue are mostly no longer available. Your repair cost are going to approach $1000.00 or more.

Mar 07, 2007 | Sony KP-57HW40 57" Rear Projection...

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