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Crumbtrail TV Forums: TV Equipment: TV Repair Forum:
SONY kv-27fs17

 
 


ats1080
New User

Mar 1, 2008, 8:11 PM

Post #1 of 16 (2440 views)
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SONY kv-27fs17 Can't Post
hi, someone just gave me a sony kv-27fs17 today because it doesnt work anymore. when you push the power button it beeps a couple times and the standby light on the front blinks. the person i got it from took it to the tv repair shop and they told him it needs a new motherboard? i didnt know tvs had those lol but w/e. it looks like the tv guy marked on the board where the problem was. i unplugged the plug that was marked and the tv turned on but there was no picture. i did some looking around and i found one place that said its the tuner card. so basically, my question is, is there a way to make this thing work by taking out or somehow disabling the tuner card and use the rca inputs? thanks for any help <br>


(This post was edited by ats1080 on Mar 1, 2008, 8:12 PM)



mel
Veteran

Mar 1, 2008, 8:20 PM

Post #2 of 16 (2437 views)
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Re: [ats1080] SONY kv-27fs17 [In reply to] Can't Post
The blinking light is a diagnostic tool where the number of blinks helps pinpoint the problem. Post back the number of blinks and we can go from there. Yes there is a "mother board", but some techs will go for changing the system rather than doing repairs at the component level because it is easier for them and more expensive to you.


ats1080
New User

Mar 3, 2008, 1:14 AM

Post #3 of 16 (2418 views)
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Re: [mel] SONY kv-27fs17 [In reply to] Can't Post
when i press the power button the light blinks slow twice. then after the beeping sound stops it blinks 4 times fast and then waits a couple seconds then blinks 4 times fast again and keeps doing that.


ernie
User

Mar 3, 2008, 1:40 AM

Post #4 of 16 (2415 views)
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Re: [ats1080] SONY kv-27fs17 [In reply to] Can't Post
4 blinks =vert faults.dont know what chassis this but could be vert ic or capacitors.is the chassis no on the back


ats1080
New User

Mar 3, 2008, 9:40 AM

Post #5 of 16 (2413 views)
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Re: [ernie] SONY kv-27fs17 [In reply to] Can't Post
Ser. is 4002733, chassis is BA-5, and if it helps it was made in may of 2001.


mel
Veteran

Mar 4, 2008, 2:06 AM

Post #6 of 16 (2400 views)
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Re: [ats1080] SONY kv-27fs17 [In reply to] Can't Post
I have one in the shop right now with the same symptom. Usually, this is caused by a failure of the vertical output IC or the power supply supplying B+/B- to the IC. However in my case, eliminating these possibilities did not fix the problem and my next assesment is failure of the jungle IC. The first two are relatively simple fixes but the latter can run into some time and money. Good luck!


ats1080
New User

Mar 4, 2008, 10:51 PM

Post #7 of 16 (2389 views)
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Re: [mel] SONY kv-27fs17 [In reply to] Can't Post
let me know what you find out. thanks!


Franky
User

Mar 5, 2008, 3:00 AM

Post #8 of 16 (2383 views)
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Re: [ats1080] SONY kv-27fs17 [In reply to] Can't Post
In Reply To
when i press the power button the light blinks slow twice. then after the beeping sound stops it blinks 4 times fast and then waits a couple seconds then blinks 4 times fast again and keeps doing that.
It also could be your flyback.


ats1080
New User

Mar 6, 2008, 10:58 PM

Post #9 of 16 (2368 views)
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Re: [Franky] SONY kv-27fs17 [In reply to] Can't Post
im completely clueless to tv terms, so if theres a way i can fix this spell it out in english for me. im pretty good with computer and can solder half descent so if theres i way i can add/remove stuff that can be bought for cheap, i can do that. thanks for all your help


Franky
User

Mar 6, 2008, 11:36 PM

Post #10 of 16 (2364 views)
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Re: [ats1080] SONY kv-27fs17 [In reply to] Can't Post
In Reply To
im completely clueless to tv terms, so if theres a way i can fix this spell it out in english for me. im pretty good with computer and can solder half descent so if theres i way i can add/remove stuff that can be bought for cheap, i can do that. thanks for all your help


mel
Veteran

Mar 7, 2008, 2:21 AM

Post #11 of 16 (2357 views)
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Re: [ats1080] SONY kv-27fs17 [In reply to] Can't Post
Unless you have the proper test equipment, it is s waste of time to just start changing components. In my experience, unless it is a simple straight forward fix, many do-it-yourselfers wind up creating more problems than already exist,especially when it comes to changing out complex ICs. Also, asking for simple repair instructions is impossible until you identify the cause of the malfunction and even the instructions might not be so simple. You might want to see if there is a SAMS Photofact (www.samswebsite.com) for this model and it might give you some troubleshooting and repair tips with schematics for clarity.


Franky
User

Mar 8, 2008, 12:18 AM

Post #12 of 16 (2342 views)
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Re: [ats1080] SONY kv-27fs17 [In reply to] Can't Post
In Reply To
im completely clueless to tv terms, so if theres a way i can fix this spell it out in english for me. im pretty good with computer and can solder half descent so if theres i way i can add/remove stuff that can be bought for cheap, i can do that. thanks for all your help
http://www.electronica-pt.com/...hp/content/view/177/


ats1080
New User

Mar 8, 2008, 6:52 AM

Post #13 of 16 (2337 views)
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Re: [Franky] SONY kv-27fs17 [In reply to] Can't Post
you wouldn't happen to have that in english would you? if not i can probably use google translator and work through it


mel
Veteran

Mar 8, 2008, 7:12 PM

Post #14 of 16 (2327 views)
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Re: [ats1080] SONY kv-27fs17 [In reply to] Can't Post
IN PLAIN ENGLISH!!!!!!!!!!!!!! THERE ARE NO SIMPLE INSTRUCTIONS.


Franky
User

Mar 9, 2008, 2:41 AM

Post #15 of 16 (2319 views)
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Re: [ats1080] SONY kv-27fs17 [In reply to] Can't Post
In Reply To
when i press the power button the light blinks slow twice. then after the beeping sound stops it blinks 4 times fast and then waits a couple seconds then blinks 4 times fast again and keeps doing that.
Also check/replace C628 100V 25UF,and IC702 on CRT Board.


ats1080
New User

Mar 9, 2008, 7:34 AM

Post #16 of 16 (2316 views)
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Re: [mel] SONY kv-27fs17 [In reply to] Can't Post
lol! actually, if you go to that site its in spanish....

 
 
 


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