Recent content by The Rebel

  1. The Rebel

    PL700II blues

    Yessir, just got this back to the bench. I work on a lot of speakers, had to take a break from this amp for a minute. Everything you mentioned checks out good. Except I do not know how to bypass the relay for the DCP, so I haven't checked that . I did, however, send the top of Q1 into orbit the...
  2. The Rebel

    PL700II blues

    Do you keep it plugged in to a power supply when you have it on the bench, or just run it off the battery pack?
  3. The Rebel

    PL700II blues

    That's great info! Thanks. I have much homework to do. Old hard head doesn't soak it up that easy any more. The Tektronix I posted a pic of looks to go for under $150 shipped. Should I wait and get something different?
  4. The Rebel

    PL700II blues

    Bruh. I read that thread. My head is spinning!! :-O But yeah, that is exactly what I need to do is learn what all that means. Don knows MUCH about this topic. I get lost easily in that discussion.
  5. The Rebel

    PL700II blues

    Would this be something to invest in, or do I want something newer? I'm looking at similar scopes. Not well versed on what I should look to buy for this hobby.
  6. The Rebel

    PL700II blues

    Don, the bias transistor was bad on that channel(broken legs). I replaced right and left transistors with 5088s. They're both checking good now. Yessir, I do need a scope. I plan on keeping this hobby alive.
  7. The Rebel

    PL700II blues

    Yes all rail fuses are good, and connections are nice. But I agree, this seems like low, or no voltage to the outputs. I will pull it back apart and start checking closer. I'll check voltages then. Thanks. Don, the right channel had a straight short to the control board that caused the burnt...
  8. The Rebel

    PL700II blues

    I got news today that this was going on before the new control board came into play Joe. But, yeah, everything I look at is under a lighted magnifier. :)
  9. The Rebel

    PL700II blues

    I see your point, and hear you loud and clear, Perry. For some reason, seems like I'm always the one that pulls in the strays and brings them back to life. :rolleyes: Just talked to my gear buddy about the two amps again. Found out this one had the distortion issue when he got it back from...
  10. The Rebel

    PL700II blues

    Ok, that went well until it didn't. Hooked it up to a known good pre amp that I use daily, hooked to test speakers, turned it on, sounds good. Listened for about 5-6 minutes. Just when I was getting ready to snap a picture of the stack the left channel decides to head out. Distorted sound coming...
  11. The Rebel

    PL700II blues

    Ok, another update on the low bias reading, it sure helps when the drivers are in the sockets. D'oh!! :rolleyes: I didn't realize I needed them in the sockets to check bias, still learning. Bias adjusted, amp is running cool, all voltages are correct. Will hook a pre amp and speakers to it...
  12. The Rebel

    PL700II blues

    Update on amp repair. I've replaced toasted 56 ohm resistor at R36R, and the blown diode at D13R. Replaced the toasty 180 ohm resistor on the back plane. In the process of checking the bias transistors mounted to the back wall, I found the left channel transistor dead so I replaced both of them...
  13. The Rebel

    Carver M-1.0t MKII, opt2 double build

    I've still got an M1.5t, great sounding amp, decent power. I run it on Athena AS-F2 towers, or CV S-1s. Don't you have a WOPL Sniffer WOPL running D-9s? >WOPL Sniffer WOPL< :p
  14. The Rebel

    PL700II blues

    Ok, sounds good. PM sent. So far the only things I found bad on the control board is the D13, and one 56 ohm resistor at R36. Everything else checks good. Thanks for the doc pack, this is what I have been needing the whole time. :thumbup: One more question on the control board, and this is just...
  15. The Rebel

    PL700II blues

    Everything on the back wall is measuring good. The only thing suspect is the one on that far right driver that I posted a pic of. It's not reading the same as the other 3 that didn't get hot. I need a picture of a bare PL 14-20 Rev. E control board or a schematic so I can check the resistors...
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