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  1. partyanimallighting

    Stage Lighting Followspot PCB in need of repair

    Pix of rear of PCB Hope these help.
  2. partyanimallighting

    Stage Lighting Followspot PCB in need of repair

    How do these look? Will they help?
  3. partyanimallighting

    Stage Lighting Followspot PCB in need of repair

    PCB in need of repair Hi again, Here is the best I can do as far as picture quality is concerned. I tried to label all devices as best as possible with the exception of the resistors but when the picture is zoomed I think they can be seen clearly enough.
  4. partyanimallighting

    Stage Lighting Followspot PCB in need of repair

    I'll try to post a better photo of both sides as requested and label all connectors. And I really appreciate all the assistance so far.
  5. partyanimallighting

    Stage Lighting Followspot PCB in need of repair

    it looks like the relay closes to send continuity so I am getting a 0V readout on both. I did this comparison test before and both readouts are identical. Where do I go from here? When I short the legs on the diac or check the values on the three resistors just after the diac, I get a click on...
  6. partyanimallighting

    Stage Lighting Followspot PCB in need of repair

    Do you mean to test both pcb's at the same time? I'm trying that without much success. I have the pcb powered up and checked voltage at all the resistors etc. and I'm getting 18 volts at all solder points. Anything else I can try?
  7. partyanimallighting

    Stage Lighting Followspot PCB in need of repair

    Here's the thing. My knowledge of electronics repairs is vague. I can check continuity, values, replace burnt out devices but as far as having a working knowledge of how pcb's work, forget about it. That's where I turn to the experts, you guys. So here is my response to your questions....The...
  8. partyanimallighting

    Stage Lighting Followspot PCB in need of repair

    Hello everyone, I have two of these unit that were giving problems and I actually managed to troubleshoot and repair one but I am having problems with the other pcb. The units are fairly simple. They run on 12V ~ 18V DC and are powered by a 12V toroidal transformer and have three motors that...
  9. partyanimallighting

    Dimmer

    Thanks guys, I picked up a NTE substitute for the BTA04-600 for about USD6.00 locally and it worked fine. The dimming is not as smooth as before but it will suffice. Thanks again for all the help and advice and I'll post pictures of my next problem pcb over the course of this weekend. Any...
  10. partyanimallighting

    Dimmer

    When I solve this problem I have another circuit board in need of repairs also. Can I bother you guys with this one when that time comes?
  11. partyanimallighting

    Dimmer

    Thanks Cocacola, I'll pick up a couple tomorrow and try my luck.
  12. partyanimallighting

    Dimmer

    Hi Duke37, So I shouldn't be too worried about getting a replacement? A lot of the dimming equipment I stock for stage lighting rentals carry a common device, LM7805. I have a few of these lying around. Will this device work? And if not, what would you recommend?
  13. partyanimallighting

    Dimmer

    Hi Duke, It's a really small circuit board, probably only an inch long, and the wires shorted when I tried to replace one of the 2 7W 120V bulbs and that blew out the triac. The triac number was ST44A and I could not find a listing for it to get a replacement number and ST44A is not available...
  14. partyanimallighting

    Dimmer

    Here is a picture.
  15. partyanimallighting

    Dimmer

    Hi. Can anyone help me? I have a small dimming circuit board in need of repair. It's for a Furman Rack Mount Power Supply and the dimmer ciscuit is for the rack lights built into the unit. What I believe is a triac is burnt out on the circuit board and the number is ST44A. I have searched for a...
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