gslettum Posted March 26, 2021 Share Posted March 26, 2021 Anyone knows the vdc on the capacitors on the pwr board 660541-01? Quote Link to comment Share on other sites More sharing options...
ngen33r Posted March 30, 2021 Author Share Posted March 30, 2021 I will check if I have one tonight. Quote Link to comment Share on other sites More sharing options...
gslettum Posted April 2, 2021 Share Posted April 2, 2021 Work in progress. I don't have fully working power supply, so take some time for a beginner like me. This belongs to a svs pc13 ultra, Bash 750w amp. Same supply as my polk dsw3000 micropro sub. Only difference is the inrushboard. Quote Link to comment Share on other sites More sharing options...
gslettum Posted April 10, 2021 Share Posted April 10, 2021 On 3/30/2021 at 8:42 PM, ngen33r said: I will check if I have one tonight. Any idea what the dc are on theese caps? Glenn Quote Link to comment Share on other sites More sharing options...
ngen33r Posted April 12, 2021 Author Share Posted April 12, 2021 On 4/10/2021 at 3:17 AM, gslettum said: Any idea what the dc are on theese caps? Glenn The large mains? 200V 1000uF Quote Link to comment Share on other sites More sharing options...
gslettum Posted April 12, 2021 Share Posted April 12, 2021 17 hours ago, ngen33r said: The large mains? 200V 1000uF Theese small smd caps. Quote Link to comment Share on other sites More sharing options...
gslettum Posted May 9, 2021 Share Posted May 9, 2021 Nobody knows the vdc on theese small caps. I can't get power too the secondary side. I think i have too rebuild the whole board. Everything else on the primary side is changed. Quote Link to comment Share on other sites More sharing options...
ngen33r Posted May 9, 2021 Author Share Posted May 9, 2021 Look up the data sheet for the IC. I believe 50V will work for those. The ceramic caps are almost never bad. Usually just a diode and / or the IC. Quote Link to comment Share on other sites More sharing options...
gslettum Posted May 9, 2021 Share Posted May 9, 2021 51 minutes ago, ngen33r said: Look up the data sheet for the IC. I believe 50V will work for those. The ceramic caps are almost never bad. Usually just a diode and / or the IC. I have changed the IC and the bas16 D3. Still nothing. So for the fun of it and usefully experience, i will rebuild the board. Have all the parts on hand, except the cap's and resistors. I will check the datasheet for the IC. Quote Link to comment Share on other sites More sharing options...
ngen33r Posted May 10, 2021 Author Share Posted May 10, 2021 Here is what I have. It is not complete or updated. VERSION IS UNKNOWN DO NOT ASSUME RB. Looks like C6 needs to be able to handle 200V. Double check this. 660045-1.pdf Quote Link to comment Share on other sites More sharing options...
gslettum Posted May 10, 2021 Share Posted May 10, 2021 4 hours ago, ngen33r said: Here is what I have. It is not complete or updated. VERSION IS UNKNOWN DO NOT ASSUME RB. Looks like C6 needs to be able to handle 200V. Double check this. 660045-1.pdf 38.76 kB · 2 downloads Thanks. So many different subwoofer brands used this amp, and now schematics around. Good kept secret, more secret then some gouverment documents😁 Quote Link to comment Share on other sites More sharing options...
vpolish@aol.com Posted May 19, 2021 Share Posted May 19, 2021 Are you still repairing the RT10 subwoofer amps. Mine failed last week, i have removed it and it seems to exhibit many of the issues shown in your post. Hate to discard the subwoofer, hope you can help. Vince Quote Link to comment Share on other sites More sharing options...
ngen33r Posted May 20, 2021 Author Share Posted May 20, 2021 12 hours ago, vpolish@aol.com said: Are you still repairing the RT10 subwoofer amps. Mine failed last week, i have removed it and it seems to exhibit many of the issues shown in your post. Hate to discard the subwoofer, hope you can help. Vince I am but I have a very long waiting list. Quote Link to comment Share on other sites More sharing options...
Varuna Posted June 16, 2021 Share Posted June 16, 2021 Hi Wayne , I have an issue with the secondary side of the power supply. It doesnt pass any power from CD+ and CD-. 0V output. But i get the power for the other control boards. What is the usual output voltage and Amp of CD+ CD- terminals. Can you guide me how to repair this Quote Link to comment Share on other sites More sharing options...
ngen33r Posted June 26, 2021 Author Share Posted June 26, 2021 On 6/16/2021 at 12:34 PM, Varuna said: Hi Wayne , I have an issue with the secondary side of the power supply. It doesnt pass any power from CD+ and CD-. 0V output. But i get the power for the other control boards. What is the usual output voltage and Amp of CD+ CD- terminals. Can you guide me how to repair this ~8V DC Quote Link to comment Share on other sites More sharing options...
ngen33r Posted June 26, 2021 Author Share Posted June 26, 2021 On 4/12/2021 at 3:44 PM, gslettum said: Theese small smd caps. It's never the caps! 1 Quote Link to comment Share on other sites More sharing options...
gslettum Posted June 26, 2021 Share Posted June 26, 2021 3 hours ago, ngen33r said: It's never the caps! Changed then anyway, for smd soldertraining😁. And all the diodes. I got power too the secondary side now, but have unstable 13-15 unstable volt at the CD+ and -. And the Q4 2sn4401 made some noise, and broke down. Any idea? Bashboard? 1 Quote Link to comment Share on other sites More sharing options...
ngen33r Posted June 28, 2021 Author Share Posted June 28, 2021 On 6/26/2021 at 5:26 AM, gslettum said: Changed then anyway, for smd soldertraining😁. And all the diodes. I got power too the secondary side now, but have unstable 13-15 unstable volt at the CD+ and -. And the Q4 2sn4401 made some noise, and broke down. Any idea? Bashboard? Bash board is the next step once the primary side is stable. Might as well recap the whole board too. Never know whats under them until you pull them. Quote Link to comment Share on other sites More sharing options...
gslettum Posted June 28, 2021 Share Posted June 28, 2021 1 hour ago, ngen33r said: Bash board is the next step once the primary side is stable. Might as well recap the whole board too. Never know whats under them until you pull them. I have recaped the whole secondary side of the board all ready, small caps too the big one. So next on the agenda is the bash. Not sure what kind of UC3842 i can order. https://no.mouser.com/Semiconductors/Power-Management-ICs/Voltage-Regulators-Voltage-Controllers/Switching-Controllers/_/N-41fau?P=1z0z7ptZ1z0vnjaZ1z0z7v5&Keyword=uc3842&FS=True Quote Link to comment Share on other sites More sharing options...
Rikotiko Posted July 29, 2021 Share Posted July 29, 2021 Hello, I have a subwoofer Klipsh RT12D There was a defective main board, the master took it to the repair, but on CD + CD-6V. The master about your video where CD + CD-8.1V says that it means nothing. You need a service manual to know how it should be. Can you please tell me if you have any circuits with the full names of radio components (what details should be with their name and denomination)? Quote Link to comment Share on other sites More sharing options...
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