obarrett
Responses from obarrett
| Did I just cook my preamp? Ok I did AC again and verified the previous numbers. SMPS (one lead in ground of OEM ITC, the other on the sleeve contact of the SMPS): 48.7 V AC on V 0.125 V AC on LoZ | |
| Did I just cook my preamp? I tested the outlets where things were plugged in. The hot/neutral is reversed. So the hot is the longer left slot, the neutral is the shorter slot on the right. The ground appears to be functioning. | |
| Did I just cook my preamp? Does the 120Vac IEC inlet connector on the back of the sub have three prongs? Therein an equipment ground prong? My bet is yes. Correct? Yes I verified your question about subwoofer in earlier comment today. The subwoofer pins are only two even... | |
| Did I just cook my preamp? I think I messed up on the DC measurements, i think they were AC. so let me try again: SMPS (one lead in ground of OEM ITC, the other on the sleeve contact of the SMPS): 0.6 mV DC on V 0.0 mV DC on LoZ SMPS (red lead center, black on sleeve): 1... | |
| Did I just cook my preamp? I just tried an additional test. I plugged in the preamp to the wall using its SMPS.the blue light went on, off, on, off four times getting fainter then went off. I plugged the black lead into the ground of the OEM IEC power cable. I put the MM ... | |
| Did I just cook my preamp? I did your test from your long post. wall: hot neutral 121.7V hot ground: 122.0V Neutral ground: 0.285V OEM ITC: Two females: 121.3V female ground: 121.7V SMPS (one lead in ground of OEM ITC, the other on the sleeve contact of the SM... | |
| Did I just cook my preamp? The CDP appears to be grounded with three pins and the power cord has three prongs. The amp is placed on top of the cdp so they are touching. | |
| Did I just cook my preamp? I will test now following your instructions and report back. The subwoofer plug into the wall has three prongs but when it plugs into the subwoofer it has only two. So it’s not grounded either. I will be around for the next few hours and will send... | |
| Did I just cook my preamp? @jeffbij Yes I’m sorry I misspoke. I was connecting to the RCA input of the amp, not the TT. @jea48 yes wired coax to router, then Ethernet from router to bluesound node. Ethernet is not shielded. Both cables pass close to the interconnects go... | |
| Did I just cook my preamp? Thank you all for your responses. It’s a big help to me as I’m not an expert on electromagnetism. @jeffbij although the amp is not grounded, it functions fine with no voltage/charge unless connected to the phono preamp. When connected to phono... | |
| Did I just cook my preamp? Thanks for this advice. I agree with what you wrote. I bought the amplifier used and it came with a power cord without a ground. I’m going to immediately replace that power cord with a proper three prong power cord. I think that the preamp develop... |