TV Repair Questions? Ask a TV Technician
Thank you for posting your question on Just Answer! I will be happy to help you with this problem. Can you please give us some more information so I can better answer your questions.
-What does the power light on the front do?
-How old is the unit?
Please give me this information and I will be happy to assist you further.
I don't see a power light on the front of the television.
the date on the back is 09/2004. chassis NO. DS32224-04
There are several things that can cause this.
The most common is the horizontal circuit, when it shorts out it will shut the set down just like yours is doing. This repair normally runs $200-$300 depending on what is found.
However this could also be caused by the vertical circuit, power supply, and high voltage circuit to name a few. The average repair price for any of these is $125-$300 depending on exactly what is found.
However to determine exactly what the problem is will require troubleshooting. Some knowledge of electronics and a multimeter will be needed for this. If you have this knowledge/tools I will be more than happy to walk you through the troubleshooting of this set and determine what is wrong. Also most repairs will require good soldering skills so you will need these as well for us to repair the tv after diagnosis. If you don't have any of this then a repairman would be your next step.
I am sorry to bring you the bad news on this one, you definitely have an internal failure in the set that is putting it into shut down.
If you would like any additional information or have more questions please don't hesitate to ask!
Please never accept an answer until you are 100% satisfied and feel you can leave positive feedback. If I have answered your questions and met your needs then please press the green "accept" button. Otherwise please feel free to ask anything else to get your problem resolved. Positive feedback is always appreciated! Thank you,Tim Nolan
Ok well the first thing I would start with is the horizontal output, we need to read the collector to ground and see what the resistance is.
If you do not know what the horizontal is then you can take a picture of the circuit boards and post it to me and I will circle it for you. (if you can post a picture, please click the icon above where you are typing with the green tree on it. This will allow you to upload a picture)
The collector of the horizontal output transistor to ground.
can we uses the PDF file I have ? and what test points do i uses
If you send me a link I will look at it, but what you sent me doesnt open anything up.
I cannot get that to open, I will opt out and see if any experts have your service manual because I do not.
You can email it to [email protected] if you like she will forward it to me.
Ok Ill check and see if she has it.
Looks like she hasn't gotten in yet today, she will let me know as soon as she gets here.
OK test DC voltage at turn on now.
Also not sure whats up with my partner in crime today, Gina has not checked in so sorry, I have no manual yet.
Ok unsolder or cut the center leg and check the voltage at the trace.
OK I will cut the collector and check voltage at the trace.
OK the I made the test I got 79.1 power off 132 with power on and a lot of relay noise.
then TV turns off
OK is the relay noise new?
OK solder that back together that voltage is good, you were reading RF before and not a true 1000 volts so nothing to worry about there.
Next you need to check all the voltages coming out of the secondary.
9 volts on anode of D276
12 volts on positive side of C629
9 volts on R489
For all of these you can use the metal case on the tuner as ground.
9 volts on anode of D276, The PDF file shows D276 ON Foil side of board H,5 NOT FOUND
the PDF file showing foil side of board dose not look like my board foil side
12 volts on positive side of C629 is 13.4 VDC at TJ2 at board location A,3
9 volts on R489 is 11.3 VDC at board location B,4
I downloaded the servicing info for a Sanyo DS32224 TV but the board lay-out, parts and parts list don't quite match... frustrating. The info is for chassis # XXXXX board # XXXXX I have a DS32224-02, board # XXXXX Any help? Thanks!Read more: I downloaded the servicing info for a Sanyo DS32... - JustAnswer http://www.justanswer.com/questions/1du0y-i-downloaded-the-servicing-info-for-a-sanyo-ds32224-tv-but#ixzz11hSJCFwn
So our voltages are high, possilby we have a regulation problem then causing the voltages to be too high and shut down.
how long do these stay up?
Ok BTW this manual is not so great so it takes some time for me to read it to figure out what I want to know.... but next we need to look at:
Collector should be 155 V DC when on and 170 when off (use emitter as ground)
Collector should be 0 volts when on and off (use emitter again as ground)
let me know.