Sanyo CE37FD47 LCD No Power

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  • Liam.25
    Senior Member
    • Feb 2011
    • 107
    • Uk

    #41
    Re: Sanyo CE37FD47 LCD No Power

    plain bill - im assumning you know that nothing was ever tested with those settings in post 18?

    that picture was simply just so that dumpystig can answer my question.

    Comment

    • dumpystig
      Badcaps Veteran
      • Jul 2011
      • 485
      • UK

      #42
      Re: Sanyo CE37FD47 LCD No Power

      You got new meter now?
      System: HP xw6600 Workstation, 650W PSU | 2x Intel Xeon Quad E5440 @2.83GHz | 8x 1GB FB-DDR2 @ 667MHz | Kingston/Intel X25-M 160GB SSD | 2x 1TB Spinpoint F3, RAID0 | 1x 1TB Spinpoint F3, backup | ATI FireGL V7700 512MB | Sony Optiarc DVD +/-RW | Win 7 Ultimate x64 | 2x Dell UltraSharp U2410f | Dell E248WFP

      Comment

      • Liam.25
        Senior Member
        • Feb 2011
        • 107
        • Uk

        #43
        Re: Sanyo CE37FD47 LCD No Power

        not yet mate, will have soon, just waiting for girlfriend, shes going to take me.

        Comment

        • dumpystig
          Badcaps Veteran
          • Jul 2011
          • 485
          • UK

          #44
          Re: Sanyo CE37FD47 LCD No Power

          Ok, catch you later. I'm off back to trying to sort my own set, been ongoing for 3 weeks now but I'm determined to fix the bastard (hopefully without any cash outlay - although my labour up to now would be running into several hundred quid haha!).
          System: HP xw6600 Workstation, 650W PSU | 2x Intel Xeon Quad E5440 @2.83GHz | 8x 1GB FB-DDR2 @ 667MHz | Kingston/Intel X25-M 160GB SSD | 2x 1TB Spinpoint F3, RAID0 | 1x 1TB Spinpoint F3, backup | ATI FireGL V7700 512MB | Sony Optiarc DVD +/-RW | Win 7 Ultimate x64 | 2x Dell UltraSharp U2410f | Dell E248WFP

          Comment

          • Liam.25
            Senior Member
            • Feb 2011
            • 107
            • Uk

            #45
            Re: Sanyo CE37FD47 LCD No Power

            ok. good luck. catch ya later

            Comment

            • PlainBill
              Badcaps Legend
              • Feb 2009
              • 7034
              • USA

              #46
              Re: Sanyo CE37FD47 LCD No Power

              Originally posted by dumpystig
              Ah, how are you today, good I trust?

              Yes, as you can see we have had a bit of a struggle today... but Liam.25.beta will be returning I'm sure, after first reading the manual for his new DMM
              I'm sure most of us have had a similar experience. My first VOM was obtained by repairing one damaged when my boss tried to measure the 120 VAC with the VOM set to a resistance scale. Some years later I blew that one up when I found a cracked focus voltage divider.

              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

              • PlainBill
                Badcaps Legend
                • Feb 2009
                • 7034
                • USA

                #47
                Re: Sanyo CE37FD47 LCD No Power

                Originally posted by Liam.25
                plain bill - im assumning you know that nothing was ever tested with those settings in post 18?

                that picture was simply just so that dumpystig can answer my question.
                I believe you. But there is a good reason you NEVER leave the meter leads in that configuration. I USUALLY set the range before grabbing the probes. I very rarely use the 10A range, so I NEVER check that the probes are plugged into the correct jacks. It could come back to bite me.

                I would also be nervous owning a meter that can't tolerate 330 VDC.

                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

                • dumpystig
                  Badcaps Veteran
                  • Jul 2011
                  • 485
                  • UK

                  #48
                  Re: Sanyo CE37FD47 LCD No Power

                  Liam, did you get your new DMM? Where you up to with your set now?
                  System: HP xw6600 Workstation, 650W PSU | 2x Intel Xeon Quad E5440 @2.83GHz | 8x 1GB FB-DDR2 @ 667MHz | Kingston/Intel X25-M 160GB SSD | 2x 1TB Spinpoint F3, RAID0 | 1x 1TB Spinpoint F3, backup | ATI FireGL V7700 512MB | Sony Optiarc DVD +/-RW | Win 7 Ultimate x64 | 2x Dell UltraSharp U2410f | Dell E248WFP

                  Comment

                  • Liam.25
                    Senior Member
                    • Feb 2011
                    • 107
                    • Uk

                    #49
                    Re: Sanyo CE37FD47 LCD No Power

                    Hi dumpystig, testing now, same as before and im getting 249volts.

                    so its clear the board is getting power, but powers not traveling right to main outlet??

                    Comment

                    • dumpystig
                      Badcaps Veteran
                      • Jul 2011
                      • 485
                      • UK

                      #50
                      Re: Sanyo CE37FD47 LCD No Power

                      I'm not sure where you are testing - can you explain more.
                      System: HP xw6600 Workstation, 650W PSU | 2x Intel Xeon Quad E5440 @2.83GHz | 8x 1GB FB-DDR2 @ 667MHz | Kingston/Intel X25-M 160GB SSD | 2x 1TB Spinpoint F3, RAID0 | 1x 1TB Spinpoint F3, backup | ATI FireGL V7700 512MB | Sony Optiarc DVD +/-RW | Win 7 Ultimate x64 | 2x Dell UltraSharp U2410f | Dell E248WFP

                      Comment

                      • PlainBill
                        Badcaps Legend
                        • Feb 2009
                        • 7034
                        • USA

                        #51
                        Re: Sanyo CE37FD47 LCD No Power

                        I have labeled some parts of the power supply.

                        Since you appear to have voltage across the main filter cap, let's perform a leap and check voltages from the standby supply.

                        The only cable you need connected at this time is the AC input cable in the lower right corner. Turn the power supply upside down and measure the voltage across the three caps I have labeled 'Standby Filter Caps'. I would expect voltages in the 5V -15V range. If you get no voltage across any of those three caps, the standby supply is dead.

                        I have labeled an IC Standby SMPS Controller. What is the part number on that IC?

                        PlainBill
                        Attached Files
                        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

                        • Liam.25
                          Senior Member
                          • Feb 2011
                          • 107
                          • Uk

                          #52
                          Re: Sanyo CE37FD47 LCD No Power

                          Hi Bill, no voltage reading on all 3 of the standby filter caps.

                          the IC is labeled "DL321 VK08".

                          Comment

                          • PlainBill
                            Badcaps Legend
                            • Feb 2009
                            • 7034
                            • USA

                            #53
                            Re: Sanyo CE37FD47 LCD No Power

                            Originally posted by Liam.25
                            Hi Bill, no voltage reading on all 3 of the standby filter caps.

                            the IC is labeled "DL321 VK08".
                            Excellent!!! That IC is a Fairchild FSDL321L. It's a low power all in one SMPS controller and power FET. The datasheet link is here.

                            In the picture, pin 1 is in the upper left corner. With the power supply connected only to AC power, what are the voltages on pins 2, 3, 4, and 5? Do NOT attempt to measure the voltage on pins 6, 7, and 8; it could damage your meter.

                            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

                            • Liam.25
                              Senior Member
                              • Feb 2011
                              • 107
                              • Uk

                              #54
                              Re: Sanyo CE37FD47 LCD No Power

                              0 voltage on pins 2, 3, 4 and 5?

                              Comment

                              • PlainBill
                                Badcaps Legend
                                • Feb 2009
                                • 7034
                                • USA

                                #55
                                Re: Sanyo CE37FD47 LCD No Power

                                Originally posted by Liam.25
                                0 voltage on pins 2, 3, 4 and 5?
                                Pins 6,7,8 are the drive for the SMPS transformer. Measure the voltage from pin 1 to pin 8 of the SMPS controller. This SHOULD be about 249 volts.

                                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

                                • dumpystig
                                  Badcaps Veteran
                                  • Jul 2011
                                  • 485
                                  • UK

                                  #56
                                  Re: Sanyo CE37FD47 LCD No Power

                                  No updates then...?
                                  System: HP xw6600 Workstation, 650W PSU | 2x Intel Xeon Quad E5440 @2.83GHz | 8x 1GB FB-DDR2 @ 667MHz | Kingston/Intel X25-M 160GB SSD | 2x 1TB Spinpoint F3, RAID0 | 1x 1TB Spinpoint F3, backup | ATI FireGL V7700 512MB | Sony Optiarc DVD +/-RW | Win 7 Ultimate x64 | 2x Dell UltraSharp U2410f | Dell E248WFP

                                  Comment

                                  • Liam.25
                                    Senior Member
                                    • Feb 2011
                                    • 107
                                    • Uk

                                    #57
                                    Re: Sanyo CE37FD47 LCD No Power

                                    Time was of an essence and i purchased a new board, still got the old board here.

                                    Bill asked me to measure the voltage from pin 1 to pin 8 of the SMPS controller, did he mean measure each of the 8 pins?

                                    there quite diifficult to see as there underneath the controller. also got my 3 rd multimeter now, its an half decent martindale, very happy with it.

                                    Comment

                                    • dumpystig
                                      Badcaps Veteran
                                      • Jul 2011
                                      • 485
                                      • UK

                                      #58
                                      Re: Sanyo CE37FD47 LCD No Power

                                      No he means put Black probe to Pin1 (GND) and Red probe to Pin8 (Drain) and post the result.
                                      Yeah, Martindale is a good brand, you should be fine with that.
                                      System: HP xw6600 Workstation, 650W PSU | 2x Intel Xeon Quad E5440 @2.83GHz | 8x 1GB FB-DDR2 @ 667MHz | Kingston/Intel X25-M 160GB SSD | 2x 1TB Spinpoint F3, RAID0 | 1x 1TB Spinpoint F3, backup | ATI FireGL V7700 512MB | Sony Optiarc DVD +/-RW | Win 7 Ultimate x64 | 2x Dell UltraSharp U2410f | Dell E248WFP

                                      Comment

                                      • dumpystig
                                        Badcaps Veteran
                                        • Jul 2011
                                        • 485
                                        • UK

                                        #59
                                        Re: Sanyo CE37FD47 LCD No Power

                                        So is your set working now with the new board installed?
                                        System: HP xw6600 Workstation, 650W PSU | 2x Intel Xeon Quad E5440 @2.83GHz | 8x 1GB FB-DDR2 @ 667MHz | Kingston/Intel X25-M 160GB SSD | 2x 1TB Spinpoint F3, RAID0 | 1x 1TB Spinpoint F3, backup | ATI FireGL V7700 512MB | Sony Optiarc DVD +/-RW | Win 7 Ultimate x64 | 2x Dell UltraSharp U2410f | Dell E248WFP

                                        Comment

                                        • Liam.25
                                          Senior Member
                                          • Feb 2011
                                          • 107
                                          • Uk

                                          #60
                                          Re: Sanyo CE37FD47 LCD No Power

                                          yes all fixed with a new/used board.

                                          but i still would like to know what was wrong all three boards i still have here.

                                          its been good with all of your help. i learn fast, i have a passion for electronics. im 26 and have studied computing for 11 years. im an it technician and recently turned to component level in pcb.

                                          so expect to see me around these forums.

                                          thanks again for everybodys help.

                                          Comment

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