Hello everyone,
I am currently working on a Pioneer SC-LX81 amplifier and I successfully ran a firmware upgrade fixing the network issues. I have found the file here.
The problem I am having comes from a defective 3-terminal loudspeaker connector whose previous owner destroyed the PCB connections. I don't know how this happened because I don't think the guy ever opened the received - never seen such a complicated architecture with numerous stacked boards and flat ribbons! -and the plastic is secured from the from panel.
After almost an hour for removing all the boards, I could finally access the amplifier assy and this is a 7-channel class-D amplifier driven by an ICE chip and a bootstrapped high-side driver also marked ICE. I removed the loudspeaker connecting terminal and it is well affected with most of its connection torn down (see attached pictures). The brand is Jalco and Pioneer lists it as AKE7138-A in the schematic diagram or AKE7138 in the bill of material. I've tried to ask for a spare part in a Pioneer repair station in France but the guy told me that Pioneer Europe no longer stored the part. I've tried searching the internet and found a few approaching parts on eBay but not this exact version. I can try to fix the connector by adding long wires and gluing it to the PCB but I would prefer to replace the terminal by a new one. If you gents have suggestions on where I could find this type of connector, I'll happy to read your comments. Thanks a lot in advance.
Cheers, Christophe
I am currently working on a Pioneer SC-LX81 amplifier and I successfully ran a firmware upgrade fixing the network issues. I have found the file here.
The problem I am having comes from a defective 3-terminal loudspeaker connector whose previous owner destroyed the PCB connections. I don't know how this happened because I don't think the guy ever opened the received - never seen such a complicated architecture with numerous stacked boards and flat ribbons! -and the plastic is secured from the from panel.
After almost an hour for removing all the boards, I could finally access the amplifier assy and this is a 7-channel class-D amplifier driven by an ICE chip and a bootstrapped high-side driver also marked ICE. I removed the loudspeaker connecting terminal and it is well affected with most of its connection torn down (see attached pictures). The brand is Jalco and Pioneer lists it as AKE7138-A in the schematic diagram or AKE7138 in the bill of material. I've tried to ask for a spare part in a Pioneer repair station in France but the guy told me that Pioneer Europe no longer stored the part. I've tried searching the internet and found a few approaching parts on eBay but not this exact version. I can try to fix the connector by adding long wires and gluing it to the PCB but I would prefer to replace the terminal by a new one. If you gents have suggestions on where I could find this type of connector, I'll happy to read your comments. Thanks a lot in advance.
Cheers, Christophe
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