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    #1

    Zenith plasma p42w34 front light powers on but no pic

    Hello everyone,

    name is hector. I am new to bad caps and have done two succuessful repair on my privious monitors. So heres the deal i have a zenith p42 w34 plasma that i got for free on cl . So i figured what the heck. When you turn it on the front led powers on and then you hear this noise from the part that i took a pic of. I dont know what its called. I also took pics of some caps to see if these looked blown or if it is glue on them the substance felt rubbery so im not sure. Then in one pic there is white on a cap and on the other thing as well. Any how here are some pics of the whole back and then three of the ones where the noise is comming from.

    Pic two and three are of the noisy piece pic two is the lower part and pic three is the upper part. Pic one is the whole thing. The noisy part is on the right side of pic one.
    Attached Files
    Tags: None
    #2
    Re: Zenith plasma p42w34 front light powers on but no pic

    Originally posted by hpaca509 View Post
    Hello everyone,

    name is hector. I am new to bad caps and have done two succuessful repair on my privious monitors. So heres the deal i have a zenith p42 w34 plasma that i got for free on cl . So i figured what the heck. When you turn it on the front led powers on and then you hear this noise from the part that i took a pic of. I dont know what its called. I also took pics of some caps to see if these looked blown or if it is glue on them the substance felt rubbery so im not sure. Then in one pic there is white on a cap and on the other thing as well. Any how here are some pics of the whole back and then three of the ones where the noise is comming from.

    Pic two and three are of the noisy piece pic two is the lower part and pic three is the upper part. Pic one is the whole thing. The noisy part is on the right side of pic one.
    It's the Z-sus. Google the part number.

    PlainBill
    For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.

    Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.

    Comment

      #3
      Re: Zenith plasma p42w34 front light powers on but no pic

      do you know if there is anyway to fix it at home myself or is it easier to just buy the part? What is the problem in this part that made it go bad? Thank you for your help.

      Comment

        #4
        Re: Zenith plasma p42w34 front light powers on but no pic

        Also do you know if this could be found in an older tv?

        Comment

          #5
          Re: Zenith plasma p42w34 front light powers on but no pic

          I would need PlainBill to verify this but, someone told me that if the Z-Sus is bad, normally a picture is visible but very dim.
          I don't know if this is true for all kinds of Z-sus failures or not.

          Comment

            #6
            Re: Zenith plasma p42w34 front light powers on but no pic

            Originally posted by hpaca509 View Post
            do you know if there is anyway to fix it at home myself or is it easier to just buy the part? What is the problem in this part that made it go bad? Thank you for your help.
            What part of "Google the part number." don't you understand?

            With a little research you can find the likely cause of the failure (the hybrid), the models of TV this Z-Sus was used in, and maybe even a source for both the hybrid and the card itself.

            I have no way of knowing if you can fix it at home. I have not seen anything that would lead me to believe you have the skills or the tools necessary to repair it. It is NOT an easy repair.

            I am also contemplating the possible consequences of your dealing with 200 volts.

            PlainBill
            Last edited by PlainBill; 08-18-2010, 06:12 AM.
            For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.

            Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.

            Comment

              #7
              Re: Zenith plasma p42w34 front light powers on but no pic

              [QUOTE=PlainBill;119140]What part of "Google the part number." don't you understand?

              With a little research you can find the likely cause of the failure (the hybrid), the models of TV this Z-Sus was used in, and maybe even a source for both the hybrid and the card itself.

              I have no way of knowing if you can fix it at home. I have not seen anything that would lead me to believe you have the skills or the tools necessary to repair it. It is NOT an easy repair.

              I am also contemplating the possible consequences of your dealing with 200 volts.

              PlainBill[/QUOtes

              Thanks for your concern youre right I dont know very much other then the basics of looking for bad caps and checking all fuses. Like I said I am a newbie. As for equipment I only have a multimeter and a soldering iron. I have however fix two items thanks to you guys and feel that I can be capable with the right info maybe do it myself. I did look up the model number it ranges in price from 60 135 U.S dollars. DO you think this part would be an older tv?

              Comment

                #8
                Re: Zenith plasma p42w34 front light powers on but no pic

                so from what i have read at othe sites if I take off the heat sink form this z sus board is the faulty piece under it that needs replaced wife and kids are out of town so i have all the time to do this if i need to .

                Comment

                  #9
                  Re: Zenith plasma p42w34 front light powers on but no pic

                  so i guess i will either have to buy the piece. i have looked and i dont know very much. so i again dont understand what i have to do.

                  Comment

                    #10
                    Re: Zenith plasma p42w34 front light powers on but no pic

                    hello everyone,

                    I have gotten my new z sus board that is was able to trade for a surround sound. i would really like to get this tv going. I put it in and no pic. What should i look for next or am i just wasting my time with this.

                    Comment

                      #11
                      Re: Zenith plasma p42w34 front light powers on but no pic

                      All of my fuses are ok and all caps seem to be ok.

                      Comment

                        #12
                        Re: Zenith plasma p42w34 front light powers on but no pic

                        Well, you are at least $60 into this thing already. You might as well go for it.

                        Plainbill mentioned a hybrid card. Maybe you should post a pic of it as well.

                        I'm just a "Junior Advisor" trying to make sense of it all. I'm glad you got this for free on CL however always be aware of how much you can get this thing new vs fixing. I usually dont spend (cost of TV or monitor and parts to fix) no more than 15 - 20% of the retail comparable. A set like that may only cost about $600 or less. You're already into 10% of it's worth NEW without a solution!

                        If you are doing this for a hobby, by all means, take your time.
                        The strong-minded rise to the challenge of their goals,the weak-minded BECOME HATERS

                        Comment

                          #13
                          Re: Zenith plasma p42w34 front light powers on but no pic

                          I appreciate the relpy I was ready to give up. I am a newbie so this will probably take me a while to figure out. This is a new hobbie I would like to get into. I would like to know where this hybrid card would be found on my tv. I really dont want to be a bother by asking to many questions that might seem dumb to you guys, but I gotta learn somehow...right

                          Comment

                            #14
                            Re: Zenith plasma p42w34 front light powers on but no pic

                            could somebody tell please tell me what you mean by hybrid card or what i should look for?

                            Comment

                              #15
                              Re: Zenith plasma p42w34 front light powers on but no pic

                              Originally posted by hpaca509 View Post
                              could somebody tell please tell me what you mean by hybrid card or what i should look for?
                              'Hybrid', not 'hybrid card'.

                              In this context, look at the Y-Sus and Z-Sus cards. Each of them has a large heat sink perhaps 3" x 6". If you look at the bottom side of the card you will see two rows of pins in that area. Each row is perhaps 2" long, and the rows are 2" apart. If you look between the heat sink and the card you will see something looking vaguely like a very large DIP IC. That is the hybrid. They are notorious for failing.

                              Replacing is is NOT a trivial task. The replacement hybrid costs about $40, and it is very easy to damage the board while trying to remove the old hybrid.

                              Samsung used a similar design on some of their sustain cards, but their design allowed removing the heat sink, which meant the pins of the old hybrid could be cut and extracted one at a time.

                              PlainBill
                              Last edited by PlainBill; 08-24-2010, 12:51 PM.
                              For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.

                              Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.

                              Comment

                                #16
                                Re: Zenith plasma p42w34 front light powers on but no pic

                                here is the pic of the card from the z sustain board under the heat sink.
                                Attached Files

                                Comment

                                  #17
                                  Re: Zenith plasma p42w34 front light powers on but no pic

                                  Is this the piece that need replace? If so is there anything i can do to replace certain part in it. I know that when i did the hp pavillon monitor one of tiny fuses(i think thats what its called was not reading .3 ohms i replaced it and then it worked. I did the fuses in this hybrid deal and some did not read .3 ohms should i replace them.
                                  Attached Files

                                  Comment

                                    #18
                                    Re: Zenith plasma p42w34 front light powers on but no pic

                                    The things with the pointed out are things i would like to know the proper names of.

                                    Comment

                                      #19
                                      Re: Zenith plasma p42w34 front light powers on but no pic

                                      Originally posted by hpaca509 View Post
                                      The things with the pointed out are things i would like to know the proper names of.
                                      The label next to each component identifies the type of component.

                                      C = Capacitor

                                      D = Diode

                                      R = Resistor

                                      D22 looks suspicious. Is that something dabbed on the top, or is it burnt?

                                      PlainBill
                                      For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.

                                      Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.

                                      Comment

                                        #20
                                        Re: Zenith plasma p42w34 front light powers on but no pic

                                        its just dabbed with the coating of rubber cement stuff there are others that look like that on the board. Are the resistor the one that measure .3 ohms? if so not all are doing that some read 10.4

                                        Comment

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