f.y.i. polaroid tla-04617c

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • cadillacman
    Badcaps Veteran
    • Feb 2011
    • 524
    #1

    f.y.i. polaroid tla-04617c

    Just fixed one of these today. Would power on for anywhere from 10 secs to 2 mins then powerdown. No led no 5v totally dead..

    The former owner replaced the power supply. The replacement unit had about 60% BAD SOLDER JOINTS!!! THe original unit is also full of bad solder as well. Im thinking thats probhably a common issue..

    So if you get one of these that powers on and off etc first check caps and then reflow every damn joint on the power supply.
    Last edited by cadillacman; 04-23-2011, 05:35 PM.
    Tags: None
    • cadiman
      Badcaps Veteran
      • Mar 2010
      • 397
      #2
      Re: f.y.i. polaroid tla-04617c

      Didn`t these have good caps in them? The ones I had were built pretty well.

        Comment

        • cadillacman
          Badcaps Veteran
          • Feb 2011
          • 524
          #3
          Re: f.y.i. polaroid tla-04617c

          yeah actually i think they were saxmons or whatever.. but man, piss poor solder joints. I think these came out right when rohs complaice just got its start, frickin solder was horrid on this thing. Its amazing it ever worked.

            Comment

            • cadillacman
              Badcaps Veteran
              • Feb 2011
              • 524
              #4
              Re: f.y.i. polaroid tla-04617c

              well i got this set back today. Its having power issues again.. ran fine for about 2 weeks and powered down one night. next morning no go.

              now when the power button is pressed you hear relays click and red led is on, then shuts back off, then back on i just get a cycling click, click, click untill i unplug it.

              gonna dig back into it tonight. Bummer i thought i had this issue licked.(well new issue but prolly on the supply)
              Last edited by cadillacman; 05-11-2011, 06:45 PM.

                Comment

                • retiredcaps
                  Badcaps Legend
                  • Apr 2010
                  • 9271
                  #5
                  Re: f.y.i. polaroid tla-04617c

                  Originally posted by cadillacman
                  yeah actually i think they were saxmons or whatever.
                  Are these Samxon GF caps? These caps could have high ESR?
                  --- begin sig file ---

                  If you are new to this forum, we can help a lot more if you please post clear focused pictures (max resolution 2000x2000 and 2MB) of your boards using the manage attachments button so they are hosted here. Information and picture clarity compositions should look like this post.

                  We respectfully ask that you make some time and effort to read some of the guides available for basic troubleshooting. After you have read through them, then ask clarification questions or report your findings.

                  Please do not post inline and offsite as they slow down the loading of pages.

                  --- end sig file ---

                    Comment

                    • cadillacman
                      Badcaps Veteran
                      • Feb 2011
                      • 524
                      #6
                      Re: f.y.i. polaroid tla-04617c

                      i will find out tonight when i recap it and recheck for solder issues

                        Comment

                        • Dgtech
                          E. Technician
                          • Apr 2009
                          • 1462
                          • Steeler
                          #7
                          Re: f.y.i. polaroid tla-04617c

                          Does this unit have one of those IPOS150 power supply boards or something similar? Post a pic if you could.
                          The strong-minded rise to the challenge of their goals,the weak-minded BECOME HATERS

                            Comment

                            • cadillacman
                              Badcaps Veteran
                              • Feb 2011
                              • 524
                              #8
                              Re: f.y.i. polaroid tla-04617c

                              well i managed to break a leg flush on u2, a str w6252... im so mad at myself..

                              so i tried reflowing some more, replaced the smaller caps i could access- no dice.
                              my 5v was pulsing with the clicking, 12v pulsing with the clicking, there was a 24v i think and thats the only one that stayed stable.

                              i checked over some diodes and xistors and found nothing dead shorted.

                              so i decide to try the two small caps under this heat sink, and in the process forgot one of the legs of u2, and now its broke lol...

                              i dont think i ever got a chance to snap pics the first time around, i dafinately will now just give me a few mins..
                              Attached Files
                              Last edited by cadillacman; 05-11-2011, 09:36 PM.

                                Comment

                                Previous template Next

                                Related Topics

                                Collapse
                                • corrize
                                  Best way to solder LVDS connector for beginner (and qfn) ?
                                  by corrize
                                  Hello, I'm a beginner for micro soldering. Right now I have some difficult to solder a qfn 20, I guess I put too much solder on the thermal-ground pad, the result is a corner of chip wich don't touch the board (last try).

                                  I use a wire solder with hot air, I tin the board and chip before with iron and I use good flux.

                                  I will have to solder a LVDS connector (40 pins, laptop pc), I saw a solder paste in seringe, good quality (it does not scatter).
                                  See the test :
                                  https://youtu.be/bNAzC-EvqHs?t=1767

                                  With hot air from bellow the board, that's...
                                  03-09-2023, 02:57 AM
                                • myth77
                                  UV solder mask - high temp resistent, recomendation?
                                  by myth77
                                  Can someone recommend any good UV solder mask? But i need a solder mask that will stand high temperetures. The thing is...sometimes i have a bigger cooper ripped from the board, lets say mosfet pad... i reconstract it with cooper sheet, then i "glue it" with solder mask...then i use UV light...and let it cool a bit. After, i try to clean the cooper of extra solder mask..and till that part all is ok. But, when i use a soldering iron to solder that pad/cooper...the solder mask gets weaker or destroyed and finally the pad is ripped again from the board .
                                  Is there any solder mask...
                                  03-28-2022, 04:04 AM
                                • petemanuk
                                  BGA solder balls not connecting - help pls
                                  by petemanuk
                                  So I though in my spare time I’d set myself up repairing motherboards mainly pin damaged lga1151 sockets types.

                                  I’m using an achi ir sc pro rework station (gave up on my Achie ir6500 - don’t recommend)

                                  I’ve managed to get my rework profile somewhere in the correct region (after a lot of trial and error) to get the old sockets off and reflow new ones back on again, the problems I’m getting is not all of the solder balls are re-attaching when re-flow occurs. I know this because when socket is removed pads still look clean and have no solder...
                                  11-16-2022, 05:21 AM
                                • acedogblast
                                  Guide to transplant MEC1503 EC chip and EEPROM reprogamming for T14s gen 2 and X13 gen 2
                                  by acedogblast
                                  This is a guide that I am writing for helping others to replace their MEC1503 EC chip if it breaks (or to get around an inconvenient prompt to the BIOS). This forum has been extremely helpful to me so I would like to contribute to help others. I will tell you right now that this task is very difficult to do. You MUST have experience and tools to do precision micro-soldering, BGA reballing, trace repair, and general laptop repair skills.

                                  There are some specialty tools needed to do this task. The replacement MEC1503 chips can be acquired from Aliexpress. Do not buy the bare chips as...
                                  11-02-2024, 05:13 PM
                                • sircastor
                                  Solder not reflowing - what am I doing wrong?
                                  by sircastor
                                  I'm trying to fix a broken MacBook Air, and got a parts board to salvage components from. Following the suggestions of many folks here, I wanted to get in a little practice of using my hot air station (A Quick 957DW+) on the parts board so I know what kind of behavior to expect.

                                  For the life of me, I can't get anything done with this thing. I have tried multiple temperatures (from 210-425c), different air speeds, preheating the board (with the hot air, just warming it all around). I have applied what feels like excessive amounts of flux (Amtech V2-TF-559) and the solder on these components...
                                  03-03-2024, 02:44 AM
                                • Loading...
                                • No more items.
                                Working...