Plz help ID this component from Bose QC35 headphones

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • W1ngl3t
    Member
    • Feb 2022
    • 11
    • Hungary
    #1

    Plz help ID this component from Bose QC35 headphones

    Hi all,

    The IC on the pic is sits on the pcb of a Bose Quietcomfort 35 ii and it seems to connect to the right speaker driver. I have been unable to identify it from the markings, which is a problem as I suspect it needs to be replaced.
    I've seen another one of these IC's from a different QC35 and the top three digits were different (it's '848' on this one and '582' on the other one), which leaves us with only 'NP' being common.
    Any help would be appreciated!

    Thanks

    Attached Files
    Tags: None
    • jiroy
      Badcaps Legend
      • Jun 2016
      • 2416
      • Lebanon
      #2
      Re: Plz help ID this component from Bose QC35 headphones

      it's EUP7201-2.8/1.2UIR1 USP-6 xxx NP . Notice there are 2 voltages output in it : 2.8 and 1.2 volts .
      Attached Files

        Comment

        • W1ngl3t
          Member
          • Feb 2022
          • 11
          • Hungary
          #3
          Re: Plz help ID this component from Bose QC35 headphones

          Much appreciated jiroy!

          How did you find it, if you don't mind me asking?

            Comment

            • jiroy
              Badcaps Legend
              • Jun 2016
              • 2416
              • Lebanon
              #4
              Re: Plz help ID this component from Bose QC35 headphones

              Originally posted by W1ngl3t
              Much appreciated jiroy!

              How did you find it, if you don't mind me asking?
              Welcome Friend ...
              I have many Electronic parts books , real ones , not digital or online , plus some similar CDs from many major companies . They contain in their indexes a full list of illustrated type of packages , pins identification and so on .. Sometimes a little help from my backup boards and sometimes a little research online might be necessary as well , in case of newer components .

                Comment

                • W1ngl3t
                  Member
                  • Feb 2022
                  • 11
                  • Hungary
                  #5
                  Re: Plz help ID this component from Bose QC35 headphones

                  Looks like I need to start ordering physical books...

                  Do you think the Torex XC6415 would be a good replacement?
                  https://cdn.badcaps-static.com/pdfs/...a9fee8b37c.pdf

                    Comment

                    • W1ngl3t
                      Member
                      • Feb 2022
                      • 11
                      • Hungary
                      #6
                      Re: Plz help ID this component from Bose QC35 headphones

                      For ppl stumbling upon this, I've removed the component and it has 36 pins so definitely not the eup7201 LDO

                        Comment

                        Previous template Next

                        Related Topics

                        Collapse
                        • momaka
                          RCA WHP141 wireless headphones wired up
                          by momaka
                          OK, this one dates back to 2015! I thought I had posted this, but realized I didn’t when I posted a picture of something else. So here it goes…

                          Back in 2015, I bought a pair of RCA WHP141 wireless headphones at Micro Center for $2. I even mentioned it in the best cheap/free scores thread right here. Just forgot to follow up with that.

                          As mentioned back then, these are (were) 900 MHz FM wireless headphones. No modern day Blutooth or anything like that. I knew they wouldn’t be great headphones or even that good… but the price was right! So let’s take...
                          02-22-2023, 06:28 PM
                        • FALKLAN
                          Mercedes-Benz W163 Bose Audio System
                          by FALKLAN
                          Howdy everyone!

                          I have a SUV with a Bose audio system and I'm considering either a system upgrade, or purchasing a complete replacement system while bypassing the integrated Bose system.

                          On the Bose side, I have not found any specifications yet. It's a decent system but I'm, at a minimum, replacing all the factory speakers, head unit and adding an amp and two 8" subs. The Bose is a 2ohm system and I'm not certain about this point. In order to use a 4ohm set of speakers (component/loud), I would need to install 2 sets of 4ohm speakers wired in parallel to match the...
                          12-07-2023, 11:22 PM
                        • Logistics
                          Windows 10 & Wireless Headphones
                          by Logistics
                          So I found my wife a pair of Sony MDR-100ABN's, and we were goofing with them yesterday. She has a new HP Sceptre with Windows 10. I don't know 10 at all so my blood pressure goes up trying to navigate the unruly interface.

                          I played with lots of settings yesterday, when I was trying to make the headphones connect to the laptop over bluetooth including, the MIC settings since we were playing with the Noice-Cancelling setting on the headphones. I ended up putting the MIC setting back to the Intel default on the laptop, but the output for the headphones.

                          Move forward to...
                          09-24-2020, 07:58 PM
                        • Steadily7-Colossal0
                          bose soundlink color 2 strange behavior
                          by Steadily7-Colossal0
                          My dad gave me his bose soundlink color 2, claiming that the charging port was loose. I opened it up, plugged it in, probed around with a multimeter, and I can measure 5V all over the board. I wiggle the charging cable around, no change. The port looks fine: sturdy, clean contacts. I measure across the battery wires and I get 0V, so I assumed the battery was the problem. But then a few minutes later after I disconnected and re-connected the daughter board with the buttons, lights were flashing and I was reading 3.3V across the battery wires. The only logical explanation for this I could come up...
                          12-12-2024, 03:20 PM
                        • dbuergi
                          Sony WH 1000XM4 Headphones always on because of corosion?
                          by dbuergi
                          Hi all,

                          i got these headphones which were not charging or powering on. I found some corosion around the charging port and power board. After cleaning the headphones took a charge but directly powered on.
                          The power button ist without any reaction. I suggest that there ist still some gunk under the button and i get an always power on. Do you have any suggestions what to do? Is it possible to desolder the button for a cleaning?
                          I could replace the board for 25 euros but maybe there is another way?
                          1 Photo
                          11-04-2024, 09:29 AM
                        • Loading...
                        • No more items.
                        Working...