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  1. partyanimallighting

    PCB not functioning

    OK...I'll back to you in a while.
  2. partyanimallighting

    PCB not functioning

    Here's the plan and let me know what you think. It's possible that, if I swap out U3 from the working unit, I could blow the good chip from Board # 2 in Board # 1 that has the problem. But.......and tell me if I'm wrong here. If I take out the possible bad chip from Board # 1 and put in Board #...
  3. partyanimallighting

    It's broke...

    CC is right. Bypassing the safety feature creates a huge fire hazard. I've actually melted solid aluminum heater blocks by accident this way and you do not want molten aluminum flowing anywhere. Replace the thermal breaker with one of the exact value, A wire capable of handling the load...
  4. partyanimallighting

    PCB not functioning

    Update: I replaced LP2954 temporarily with LP7805 and replaced R2 (22K/2W)and R3 (24K/2W) and the green status LED lit but the lamp does not flash under control. I checked the lamp socket next and I'm getting 320VDC at the terminals. I then checked across SCR-22 and I'm getting 107VDC. When I...
  5. partyanimallighting

    PCB not functioning

    Hi guys, I'm testing pcb # 1 now. As I mentioned before, I'm getting 12VDC and 15VDC on VR1 and -1.6VDC and 15VDC on VR2. I'm getting (-)0.5VDC from VR1 to Pin 28 on U3 and (-)1.6VDC from VR2 to Pin 28 on U3 so I'm assuming VR2 is faulty or maybe some other device is blown and not allowing VR2...
  6. partyanimallighting

    PCB not functioning

    Me again. The LED was blown. Replaced it and the unit's fine. Someone please advise me as to the scorched parts on the pcb. I re-soldered everything back pretty good but please let me know if there's any cause for concern here.
  7. partyanimallighting

    PCB not functioning

    Hi Guys, if anybody's out there, I got unit # 2 repaired. Resistors R2 and R3 (22K/2W and24K/2W) were open and the pcb was a little scorched also. I replaced them, tested and the strobe works fine. There's 1 small problem. The green status LED does not function so I'll replace this first and, if...
  8. partyanimallighting

    PCB not functioning

    Hi QC, here are the results: R19 resistance - 326 R18 resistance - 326 Diode check LED 1 - 0.327 Diode check LED 2 - 1.6 R19 to LED resistance - 652 R18 to LED resistance - 715 The LED's did not light and the status of the LED's on this pcb is off.
  9. partyanimallighting

    PCB not functioning

    According to the datasheet the outputs for these regs is pin 3 so they're fine. No LED though.
  10. partyanimallighting

    PCB not functioning

    OK QC, wired up pcb #2 and I'm ready to go. Re-checked the voltages on VR1 and VR2 and the previous readings were correct. VR1 - 12VDC and 21VDC and on VR2 - 5VDC and 15VDC. VR1 and VR2 to U3 pin 28, 5VDC. So these regs seem fine. Or am I wrong?
  11. partyanimallighting

    PCB not functioning

    The LP2954IT is VR2. When you have some time, we can try to sort out unit #2 first. VR1 (340T) and VR2 (LP2954) seem to be fine on this pcb so that's a start I suppose.
  12. partyanimallighting

    PCB not functioning

    Yes. Mains here in Trinidad is 110V 60Hz. Same as USA. What do you think? What's my next step?
  13. partyanimallighting

    PCB not functioning

    Hi CC, I checked the voltages on the second problematic pcb and here are the readings: The voltages at the legs of VR1 are 12VDC and 21VDC and on VR2 it's 5VDC and 15VDC. I then checked the voltages from the tab of each one to Pin 28 on U3 and I got 5VDC on VR1 and 5VDC on VR2. I compared these...
  14. partyanimallighting

    PCB not functioning

    Hi CC, here's the image.
  15. partyanimallighting

    PCB not functioning

    Hi QC, is this what I'm looking for as far as isolation transformers go? http://www.4shared.com/account/home.jsp?sId=VTTejQX9PzwQpgwN&&fau=1&ausk=P9TlK3UwyPqhSAub&hlfid=2944161034#dir=534391295
  16. partyanimallighting

    PCB not functioning

    Hi QC, first thing I did was check the voltages at the legs of VR1 and VR2 first and I got 12VDC and 15VDC on VR1 and -1.6VDC and 16VDC on VR2. I then checked the voltages from the tab of each one, VR1 and VR2, to Pin 28 on U3 and I got (-)0.5VDC on VR1 and (-)1,6VDC on VR2. I hope this is a...
  17. partyanimallighting

    PCB needs repairs

    Next project, those Diversitronics strobes. https://www.electronicspoint.com/pcb-not-functioning-t253762.html I was warned I have to be very careful with this if I don't have an isolation transformer. I don't have one.....
  18. partyanimallighting

    PCB needs repairs

    Hi Kris, QC, CC and anyone else who put in their two cents worth. I went the resistor wire way and ran this through the relay hole, soldered up and cleaned up the pcb thoroughly, front and back, tested and it's working fine. This particular unit never functioned from brand new out of box so it...
  19. partyanimallighting

    PCB needs repairs

    So what you're telling is that the problem's that solitary trace from the relay to the grey resistor? Is it that it's probably open at the solder point below the resistor or is it another problem that I don't understand? Is it that the through-hole at this point has a short and needs to be...
  20. partyanimallighting

    PCB needs repairs

    Hi Kris, I did as you said, and soldered a wire across D and E, installed all the IC's, re-installed the pcb into the unit, started up and......the unit booted up fine and all functions are fully operational. So, judging from this, am I to assume the problem is somewhere between the relay and...
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