Yes, Aleph 3 should have 25 VDC. One channel board close to inputs/outputs has connections "out", "v-", "v+", "src", the other board has connections "v+", "out", "src".
You mean put resistors accross each individual capacitor or some similar arrangement as in the schematics, but there seems to be more capacitors forming CRC filter.
Yes, somewhere is problem propably, dont know where. Now the amp assembled without 22000uf power supply capacitors. Measured with voltmeter some contacts and earthing points on the outside of the amp, i think helped for a while but its a bit worse, i think it tries to find some sort of power or what.
Yes, i received your PM yesterday about half an hour after PM from local interested buyer. Caps are changed to original ones, I will also include the Vishay caps and new IRF9610 also the original IRFD 9110. I will also include two printed reviews and power cord that was included with amp. Today morning I received another PM from local interested buyer, so propably Im going to sale it.
I think that after location change the transformer will propably regain its original 25 volts, as was renewed the original transistor, really dont know.
I think that after location change the transformer will propably regain its original 25 volts, as was renewed the original transistor, really dont know.
The transformer DC voltage is now 25 volts, one channel has DC voltage about 21 volts, the original IRF 9610 that seemed functional unsoldered now seemed to be conductive on two pins, the previous seems to be unconductive on outer pins, so i soldered the second unused IRF9610.
Now thinking about some kind of problem around IRF244 power supply transistors.
Now thinking about some kind of problem around IRF244 power supply transistors.
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.