Search results

Search Forums New Posts
  1. 73's de Edd

    Mitsubishi M VR700 no audio output

    . Sir diode . . . . . . . Oh . . .tayyyyyy . . . . now, with your getting decent and adjustable headphone volume, looks like your failure is not going do be attributed to any involved and serious transistor meltdown. Seems like your headphone audio is acquired directly from the main right...
  2. 73's de Edd

    FOG MACHINE REMOTE CONTROL PROBLEM

    Sir partyhearty . . . . Reading the boards associative components, I see no justification for an overloading of its zener diode. Get the unit put back together again, being sure that the switch soldering fully meets Mil spec qualifications or on up to NASA tech brief 7000–1. Power up the unit...
  3. 73's de Edd

    Mitsubishi M VR700 no audio output

    . Sir diode . . . . . . . please identify yourself . . .1N4148 or 1N4007 Well you handled a simple amp repair before . . . . try this one on . . . . for MORE of a challenge . . . . Quite hard to get audio svc info on Bit-su-mishi . . . fortunately, I think that ONKYO was being...
  4. 73's de Edd

    What is "DualTector"?

    You can see the frontal motion detector sensor and the assigned " Dualtector " aspect, assuredly must derive from the units electret microphones additional audio /noise/ glass break sensing capability. 73's de Edd .
  5. 73's de Edd

    Clapper Light Control Circuit Problem.

    Sir Mattg1994 . . . . . . . With your comeback and saying that you ONLY needed some addditional capacitors and your response of the relay not operating. That should be indicative of your having ALREADY completely built up the circuit and frying the 7474 with 15 VDC on it as its power...
  6. 73's de Edd

    Comedy Thread

    On post: Initiated by JunaidShahid https://www.electronicspoint.com/threads/comedy-thread.262194/page-5#post-1720063 On the . . . . . mod: fixing quote . . . . . . I can not find where our, revered right honorable and esteemed . . .Steve . . had ever made any comments on this current...
  7. 73's de Edd

    HP16500A back and front system disks

    . Sir Mario K . . . . . . . As of 2013, all of the info needed could be gleaned from these owners, check and see what the situation is now . . .on getting in contact with them. REFERENCE TO: http://www.eevblog.com/forum/testgear/hp-159000a-logic-analyzer-info/ 73's de Edd
  8. 73's de Edd

    TV Samsung LE32B450C4W bad PSU.

    ' Sir Constantine . . . . . . . SOoooooooo hard to find newer sets schematics. Any chance that your board has this 16 pin IC mounted on bottom, as I saw no LARGER one mounted on your top of units photos. Give us its ID number as its the driver for your two PSC transistors that popped...
  9. 73's de Edd

    Clapper Light Control Circuit Problem.

    That circuits derived supply voltage is approaching the marginal working threshold of the 555 as well as the 7474 needs to be CMOS family as the conventional bipolar grandaddy 7474 was only for a 5 VDC supply voltage rated range. If DC metering of the supply voltage quiescent level...
  10. 73's de Edd

    Clapper Light Control Circuit Problem.

    Sir Mattg . . . . . au circa 1994 . . . . . OBSERVATIONS : Starting at the very first audio amp stage you had that 47K feeding in directly to the base of the transistor and completely swamping that stage with excess bias and being into HARD conduction. Conversely . . . . . at the extreme...
  11. 73's de Edd

    Nixie tube clock: display flickering, buzzer crackling

    . Sir jacktron . . . . . . . I looked around and couldnt find your EXACT Lithuanian sourced ? unit, but found the same PCB look-a-likes being used on some RUSSKIE units. Check out your unit against this schema and see if its basic design does also hold true on your specific unit. I...
  12. 73's de Edd

    DC motor, higher voltage just on start...

    . Sires . . . . . . . Oy Ye . . . . .Oy Ye all Beamers afficianados . . . . . I guess thats jes' the price . . . whut you done gots to pays . . . . . for high performance hy-dree-awl-licks shifting . . . . . . Pristine unit . . . . . Replacement . . . .2 screw mount . ...
  13. 73's de Edd

    HP 54510A Power Supply Smelling

    . Sir Paul Ramsbottom . . . . . . . I am placing on some initial Marked Up references to be consulting , but you query: So my very first question / action would be for you to confirm . . . . . We can see that on J2 connector that using an OHMMETER in lowest . . .ohms. . . range...
  14. 73's de Edd

    Need Capacitors for RCA tv

    . Sir John Rocco . . . . . . . On that model number RCA D52W19 identification, the final full suffixes are also needed to positively and FULLY identify your relevant chassis being involved. Basically . . . that given D52W19 prefix would assign to either an ITC / ATC221 based chassis...
  15. 73's de Edd

    Comedy Thread

    Operators manual . . . .DEFINITELY . . . .needed here . . . . Wonder if he has fresh gas ? . . . .
  16. 73's de Edd

    Comedy Thread

  17. 73's de Edd

    JVC Speaker getting power but not producing sound

    SIR SThundur . . . . . Velly Velly Confusing . . . . As, I see no GREY and BLACK wiring . . .only BLUE and GREY for one speaker pair outputs and RED and BLACK for the other speaker pair of outputs with some little . . . NO-NO . . . hay-wired in set of GRAY wires to the bottom RED and...
  18. 73's de Edd

    I have a question about a fan I built using a dc motor.

    10W input: 100v - 240v, 50-60hz output: 5.1v === 2.1a
  19. 73's de Edd

    I have a question about a fan I built using a dc motor.

    Yep . . . .everything except the gigahertz . . . . . . And if using ONLY two cells they would be series running them at 1.2 + 1.2 VDC = 2.4 VDC if they were TYPICALLY using Ni MH or Ni CD cells.
  20. 73's de Edd

    Need help repair Sunshine ATX psu

    Sir mikey5791 . . . . EVERY semiconductor which you tested seems to be having a good reading to me. On reading the frontal side of the power supply, near the first heatsink I am seeing three POWER semiconductors. The second one over from the far right is labeled as Q4, they are the MAIN...
Top