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relay speaker protection

  1. Sergimm

    NAD 2200PE won’t turn on

    I just got a new (to me) NAD 2200PE that won’t turn on. No power, overload, or protection lights turn on. All the fuses (I counted 7) seem to be fine. No visible damage either in the components: no bulging caps or burnt resistors, etc. the amp looks pristine, inside out. I’ve read that this...
    • Sergimm
    • Thread
    • nad nad 2200 pe relay speaker protection
    • Replies: 14
    • Forum: Solid State
  2. Conspheracy

    Infamous Kenwood KR-9600 in Protection mode.

    hey everyone, i'm new to audiokarma This particular receiver was my father's and he gave it to me as a house warming gift. It sat for a few years before I finally set it up with the original speakers in my home a few weeks ago. Upon the initial setup the relays did not want to close but after a...
  3. pwauk12

    NAD 3155 Relay replacement

    The NAD 3155 uses the Fujitsu 323D024 relay for the speakers, which is long discontinued. It has 6 connections, four pins close together and 2 pins at about the mid point of the relay. The mid point ones are the speaker outputs, the next set along (not the set at the edge of the relay) are the...
    • pwauk12
    • Thread
    • nad 3155 relay speaker protection
    • Replies: 8
    • Forum: Solid State
  4. cecilk

    Sansui 771 - Relay

    My friend dropped off a Sansui 771 that he said made "crackling noises" and didn't work properly. Unit is all original with no signs of recent service. I tested it and found that connecting a speaker to the left channel resulted in good sound. But when I connected a right channel speaker as...
  5. L

    A-757 Speaker relay make a "buzz" or is it?

    When I switch on the amplifier it takes a while before the speaker protection relay is stabilised in "on" mode. During that time a buzzing sound kan be heard in the relay area? I bought two new relays (Omron) and replaced them old ones as they could be the issue due to several tips on the...
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