Skip to main content
Question

Need help identifying cracked SMD component on Sonos Arc power supply board (location marked)

  • February 3, 2026
  • 1 reply
  • 39 views

Hi everyone,

I’m repairing a Sonos Arc power supply board and could use help identifying one damaged SMD component.

So far I have:

  • Replaced the main IC (marked 1342BHDGD)

  • Replaced the resistor in the yellow box – that one was readable at 24.9 Ω and had a burn mark.

However, the component marked in red is physically cracked and has no visible markings.

  • In-circuit it measured around 2.09 kΩ,

  • Out of circuit it measures open (OL), so it’s definitely failed.

I’ve attached:

  1. A close-up photo with the damaged part highlighted in red

  2. A wider photo showing its exact location on the board

If anyone has:

  • A schematic

  • A known good board to measure

  • Or experience repairing this Arc PSU

I’d really appreciate knowing:
• The correct value and type (resistor? bead?)
• Package size
• Any recommended replacement part numbers

Thanks in advance for any help!

 

 

 

1 reply

  • Lyricist I
  • March 14, 2026

Hi.
I Can not answer your question, sorry. 
But im curious, where you found the main IC (marked 1342BHDGD)?

I myself am trying to repair a sub mini, with no power and have, with the help of Gemini, found out that a chip that looks like yours Is broken (it says 1342ENACE GJRSF on mine).
I´m having trouble finding it, because all suggestions are with 8 legs and not 9.

Hope you can help :-)