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I am an Electronic Technician but I am not in the consumer electronics field. I don't regularly work with CRTs but I am familiar with high
voltage circuitry and safety precautions that should be taken with it. If you suggest particular components to check please let me know where
I can get ahold of a component placement diagram or drawing so I can find them.
I would like to fix it myself if possible because: the nearest SONY repair shop is over 100 miles away and the local TV shop doesn't work on
SONYs; our TV cabinet is designed for a 32 inch 4:3 aspect ratio TV; and with the signal off of the satellite system the picture doesn't seem to
be much different than the HD TV's until you slide up close enough to see the pixels. 1K to 2K dollars seems like an awfuld lot to spend for a
new TV that Doesn't seem to show a whole lot better picture than I had been receiving.
Any Help would be greatly appreciated.
Thank You for your time.
Larry Dillon on February 24, 2007 4:46 PM
It sounds like you may have a vertical output IC going bad or a capacitor in the vertical wave shapping circuit going bad. I can assist you with
a training manual and or a RA-3 chassis manual if you like as I will e-mail it to you via Pando because these are large files. Just conferm the
chassis Number and leave an e-mail addy and I will forward the service manuals to you. Let us know how this repair turns out and Good
Luck.
DakotaFox on February 26, 2007 9:11 PM
Thank You,
As Soon As I can find a couple of guys to help me drag this behemoth out of it's hole I will get the back off of it and see wha the chassis
number is.
I put a little 13" That has no remote (Gasp!) in front of the Sony and used the Sony for remote sound control. My wife cycled power once
after it had been on for a couple of days. The Picture came up. I had read a thread where a guy had a different model Sony that he had to
keep powered on or it would take up to 36 hours to allow the picture to come up. I told this to my wife, now she won't let me shut it down to
get the back off. It's tucked in a very tight spot so I can't get the back off until I get it out of it's hole and to do this I need to unhook it.
Picture looks as good as it ever did. It has 3 picture modes, Vivid, Movie and Normal. I programmed one of the modes to be as dark as I
could get the picture and use this as the "off" time setting.
I'll get the info to you as soon as I can. Thank you Very Much!
Dakota
jacktumprime on March 6, 2007 11:29 PM
Larry Dillon, I'd like to thank you for all your help, most people probably wouldn't have provided the advice you did for me free. My set has
come back to life after I replaced the d board with one from a KP-57WS500. After I took a closer look, the part number for the d board from
this set and from my KP-57HW47 are different sony part numbers, but the parts looked identical at a glance. So, to pass on some advice to
anyone who has my set (KP-57HW40) and needs a new complete d board (which costs ~$400.99), the cheaper d board for a KP-57WS500 /
KP-46WT500 / KP-51WS500 / KP-65WS500 (~$140) works just fine.
bluesurf on March 7, 2007 10:59 PM
nothing to see here
jacktumprime on March 8, 2007 4:42 PM
I do have one last question: After replacing the d board, are there any adjustments anywhere else I need to make? I ask because the red blue
and green are off, making it look like those 3d pictures you are supposed to wear 3d glasses for, but without the glasses.
Larry Dillon on March 8, 2007 10:40 PM
Sound like you may have a convergence problem my friend. And thank you so much for the compliment! Glad we could assist you.
jcsstar on March 9, 2007 10:34 AM
I have a Sony Model KV-27FS200. I recently replaced the flyback transformer which brought it from dead to where I now have a picture
however the picture is GREEN. It is blinking 5 times. I tried to pull up the diagnostics screen but the TV starts up with a picture but shuts off
after approximately 5 seconds. If I change the channel the video comes back and all the channels are displayed. I am not an electronics
technician and do not really have any diagnostic devices so if I need to check something out, I will probably go and buy it and just replace it.
Currently I have spent $27 versus an estimated repair of over $200. I still have a little money to spend. I would appreciate any advice.
cmontalvocarlos on March 9, 2007 5:41 PM
i have a continuous blink once a second no pausing. What part do i need to repair this problem? on your chart it says ik video path is
defected. what does that mean?
Larry Dillon on March 9, 2007 6:51 PM
That means that the video IC is not putting out a video pulse to the 1k video line. it may have a shorted componet along the line, the video ic
could be shorted or a short in the video circuit somewhere. Almost anything in the video circuit can cause this. Some times there are small
capacitors that can cause this problem but not one in paticular that I know of goes bad. This set is going to need to be diagnosed with the
proper service manual as well as the proper test equipment. Sorry no quick fix here. Please call in a pro to assit you in this repair. Good
Luck and let us know how you made out with this repair.
Flo on March 14, 2007 11:41 AM
I got a question, Is the light engine box on the sony kp57ws500 separable for service? if so please tell me how.
Larry Dillon on March 14, 2007 2:10 PM
There is no light engine on the Sony KP57WS500. That set uses Picture tubes. What type of problems are you experiencing?