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protection ic

  1. merlynski

    Pioneer PA3004 chip PCB substitute - link

    Here is a link to an open source replacement pcb for the Pioneer PA3004 Protection SIP. It is available with Gerbers, Eagle files and BOMs for both SMD and Through hole versions. This is collaborative project by AK members. PA3004 chip PCB substitute | Audiokarma Home Audio Stereo Discussion...
    • merlynski
    • Thread
    • pa3004 pioneer protection board protection circuit protection ic
    • Replies: 1
    • Forum: Solid State
  2. alexhastings

    PA3004 chip PCB substitute

    After discovering a failed PA3004 chip on my SA-7700 rebuild, and paying $35 for a single replacement, I asked @merlynski to help me design a PCB substitute, so we can all keep rehabbing these old units without paying exorbitant prices for new "old stock" chips. Our design goal was to replicate...
    • alexhastings
    • Thread
    • pa3004 pioneer protection protection board protection circuit protection ic protection mode protection problem protection relay relay click
    • Replies: 66
    • Forum: Pioneer Audio
  3. PE9ZZ

    TA7317 delay at poweron?

    I'm struggling to get my beloved Philips DFA888 working right. The manual is inconsistent with the actual circuit around this protection IC. My problem is that it switches on its output relays way too soon, less than a second. I can only find an incomplete and very confusing (Jinglish) datasheet...
    • PE9ZZ
    • Thread
    • dfa888 protection ic ta7317 ta7317p
    • Replies: 8
    • Forum: Solid State
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