Hello!
I'm trying to rewire this plate amp to SE mode. Since I have no clue about what I'm doing
I thought I might get some help on this forum. So far I've reconnected the cables as pictured. The problem arises when connecting the RCA. There's a loud howl when powering on and the cone starts to move outwards. At that point, a second or so, I turn off the amp.
Some clues about where and what to look for is appreciated. I have a basic multi meter.
Edit: SE mode = Stereo mode
I'm trying to rewire this plate amp to SE mode. Since I have no clue about what I'm doing
I thought I might get some help on this forum. So far I've reconnected the cables as pictured. The problem arises when connecting the RCA. There's a loud howl when powering on and the cone starts to move outwards. At that point, a second or so, I turn off the amp.Some clues about where and what to look for is appreciated. I have a basic multi meter.
Edit: SE mode = Stereo mode
Attachments
Last edited:
I think SE might not be the right word. SE = Single Ended, you’d have to start over, and not with a Class D amp which i believe cannot be SE. It can have a singla ended input. So can a bridged amp.
If you want to convert a mono amp (bridged or balanced) you need to separate both the inputs and outputs. There are those here who can be much more specific than i.
dave
If you want to convert a mono amp (bridged or balanced) you need to separate both the inputs and outputs. There are those here who can be much more specific than i.
dave
Well, I'm clueless. The data sheet says SE mode which I thought was an abbreviation for stereo. The amp was in BTL mode but I think it should be in regular stereo mode now.
Link to the data sheet: https://icepower.dk/download/1636/
Link to the data sheet: https://icepower.dk/download/1636/
I've unscrewed the PCB trying to find any burnt parts but can't see any. There's also no smell. I did a continuity test between speaker ground, signal ground and PCB ground and the buzzer went off. It doesn't matter if I switch channels, the howling sound is still there.
Is the sound there even if you short the inputs to ground? Is the BTL-sync pin still connected to ground? How are the pins wired (because at least I can't really see that - maybe a pic from above would help)? What are you using as a source?
it refers to (SE) as Single Ended and (BTL) bridge tied load.
P102 connector pin 1 has to be changed.
inputs then go to pins 5 (L) and 8 (R)
the speaker output (+) is now R. and speaker output (-) is Left.
ground goes to (-) speaker for R. and (+) speaker for L.
speaker phase will need to be tested.
P102 connector pin 1 has to be changed.
inputs then go to pins 5 (L) and 8 (R)
the speaker output (+) is now R. and speaker output (-) is Left.
ground goes to (-) speaker for R. and (+) speaker for L.
speaker phase will need to be tested.
I've rewired it again and now looks like pictured. I'm trying with one channel only since it will be less costly if I blow anything.
Attachments
Last edited:
Do you mean connecting signal to signal ground? BTL-sync is not connected. I use a Minidsp as a source. There were not any problems in BTL mode. I caused them
.
Last edited:
That was how it was connected in BTL mode. I'm now trying to get it to work in stereo mode, but when I connect the RCA there's a howling sound from the woofer.
I checked the bridge rectifier with a multi meter and got 0.7V which would be the expected number according to a Youtube video I watched..hehe..yeah I'm on that level. On TR300 & TR301 however, I got 0.96V & 0.41V 
Attachments
Last edited: