JM
Posted January 8, 2025 at 19:54 GMT
And some more
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Beolab 14 Sub - IC identification needed !
40 replies
And some more
It’s been a while since I took the think apart and I’m progressing well on re-assembly, although I’ve hit a headscratcher I hope you can help with Jacob.
I have a ribbon cable, which doesn’t stretch very far and appears to be folded back on itself. I’m wondering if it goes to either of the 2 connectors shown in the pic. There’s no connector on the end, so thinking the top connector might be the one, but it really struggles to get anywhere near it, let alone slot in. It could be that the connector has come off the ribbon whilst it’s been away, but don’t think it likely.
Could be that the 2 connectors are redundant, as is the ribbon ?
All the connections on the board with the blown IC are mated up with their respective cables.
Cheers
Jonny
I have a ribbon cable, which doesn’t stretch very far and appears to be folded back on itself. I’m wondering if it goes to either of the 2 connectors shown in the pic. There’s no connector on the end, so thinking the top connector might be the one, but it really struggles to get anywhere near it, let alone slot in. It could be that the connector has come off the ribbon whilst it’s been away, but don’t think it likely.
Could be that the 2 connectors are redundant, as is the ribbon ?
All the connections on the board with the blown IC are mated up with their respective cables.
Cheers
Jonny
Thanks for the pictures! I could finally decipher the text on top of the diode :)
The flex cable goes to the ICEpower module, see pic.
The flex cable goes to the ICEpower module, see pic.
Brilliant - so it’s external to the pcbs. Makes sense now.
Will have a look tomorrow.
Great team work !
Cheers
Jonny
Will have a look tomorrow.
Great team work !
Cheers
Jonny
Yeah it is on the side of the icepower pcb.
All back together - just awaiting my Powerlink to RJ45 cable so I can test it.
Hi Jacob - hope all is well. Did you get your diode swapped over ?
My Beolab 14 is back with me and all connected up, but no switching on from the Powerlink connector. I'm using a Powerlink to RJ45 connector, but no response from the sub.
I'm wondering if I've missed something fundamental, although all connections are connected, even that pesky ribbon cable.
One thing I'm wondering is whether I have a missing connection right in the middle of the ICE power module. There's a block connector socket on the left hand side of(opposite to all the caps), approx half way up. Is yours inhabited ?
Another thing that's occurred to me is whether there's a reset switch that needs a prod ?
Cheers
Jonny
My Beolab 14 is back with me and all connected up, but no switching on from the Powerlink connector. I'm using a Powerlink to RJ45 connector, but no response from the sub.
I'm wondering if I've missed something fundamental, although all connections are connected, even that pesky ribbon cable.
One thing I'm wondering is whether I have a missing connection right in the middle of the ICE power module. There's a block connector socket on the left hand side of(opposite to all the caps), approx half way up. Is yours inhabited ?
Another thing that's occurred to me is whether there's a reset switch that needs a prod ?
Cheers
Jonny
Hey Jonathan,
No I haven't received the IC yet, but hopefully it will arrive tomorrow, so I can fit it and assembly it in the weekend.
The connectors in the middle of the board (marked) are unused, I guess they are used for tuning/testing.
I don't think a reset should be needed, as the power has been disconnected long enough, so there should be no remaining power in the caps etc.
Are there any light showing in front of the sub?
No I haven't received the IC yet, but hopefully it will arrive tomorrow, so I can fit it and assembly it in the weekend.
The connectors in the middle of the board (marked) are unused, I guess they are used for tuning/testing.
I don't think a reset should be needed, as the power has been disconnected long enough, so there should be no remaining power in the caps etc.
Are there any light showing in front of the sub?
Thanks for the quick reply. The only light I can see is a white knob type thing underneath. Bear in mind I’ve never had this working, so don’t know the functionality etc.
Nothing lights up at the moment.
Cheers
Jonny
Nothing lights up at the moment.
Cheers
Jonny
Okay, I never really noticed the light, but according to this thread, it should show something when receiving a signal.
/forum/general-discussion-and-questions/activity-led-on-beolab-14
/forum/general-discussion-and-questions/activity-led-on-beolab-14
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