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  1. 73's de Edd

    Creative T3200 speakers help

    GREAT pictures ! I did not understand what you mean at this. I believe that your pictures confirmed that 8 pin IC as being a 4558 E . . . . . as I had guessed. 73's de Edd
  2. 73's de Edd

    RCA CRT Projection TV blink of death

    . Sir Ozfe I personally progressed through owning 3 generations of those big screens during the day of the CRT tubed units. Starting with a screen rising up from the cabinet in a Zenith circa 1981 . . . .then replaced with an RCA in 1992 . . . Then 3 relatives had your ITC222 series of RCA...
  3. 73's de Edd

    Creative T3200 speakers help

    Multimeter cant measure any current, its show 000 in every test. Give me the meters brand and model so that I can see if you possibly had it set wrong . . .but we DO know that you did have it in a current function, possibly AC, since it passed the power supply voltage through the probes...
  4. 73's de Edd

    Creative T3200 speakers help

    . Sir Uros MIlosevic . . . . . When i let multi-meter pipes LED goes off and that is it. I interpret that "pipes" statement as: When you remove either of the meter probes, the power LED goes off, and the unit is still inoperative. So there is a chance that Q1 is making a problem? That now...
  5. 73's de Edd

    Creative T3200 speakers help

    Sir Uros MIlosevic . . . . . . I certainly hope so. Since your last testing revealed no dead shorts on the SUB power supply lines. This time, advance the volume knob up to your usual listening level, and now, lets go back to metering. Use the DVM in its DC current monitoring function which...
  6. 73's de Edd

    Dell monitor sometimes dead (E2210H)

    EK61 . . . . . . . Initially try this . . . wherein the monitor is still intact . . . . being able to have video, even if from induced menu . . .and the set can be turned on. Is there a LED illumination lamp normally associated with the off on switch so that you can confirm that there is a...
  7. 73's de Edd

    Technics SA-828 - Static with audio, then stopped working

    . Sires . . . . . . . Those mighty-mites look just fine to me . . . . just disregard the voluminous shadows that the pins are casting. That VERY SPECIFIC, very small case profile defines that item directly to the Matsushita product line. I don't possibly think that I have ever seen them...
  8. 73's de Edd

    Capacitor charging

    As per above . . . . Can't complete schematic with out this info completed below . . . . which gives me the windings relationships and interconnects. Resistance measurements are needed from: The very BOTTOM terminal of your right GREEN terminal block . . .which is your circuits common ground...
  9. 73's de Edd

    Creative T3200 speakers help

    That is telling us that we have no heavily loaded down or shorted secondary supply lines. Looks O.K. Let's assign those terminals now Bottom left terminal of Q1 . . . Base . . . . . . . - 12,7V Top center terminal of Q1 . . . .Collector . . . - 12,7V Bottom right terminal of Q1 . .Emitter ...
  10. 73's de Edd

    I lost my solder point on board! What I do?

    ALSO check the back side of the of the board very closely as it also shows several small feed thru vias from one side of the PCB to its other side. So that connection might actually be on the other side of the board as a fine line as is being seen on pins 1-2-3 . 73's de Edd
  11. 73's de Edd

    Creative T3200 speakers help

    Sir Uros MIlosevic . . . . . . . The anode of that zener is connected to ground. With no power applied take ohmmeter and ohm from that ground connection to the right bottom corner of Q1 above it and then to ohm the bottom right corner of Q5. If they are not being grounded or of a low...
  12. 73's de Edd

    I lost my solder point on board! What I do?

    Sir Nael . . . . . . . Looking at the connector and its mate at the PCB with mine old eyes, I am seeing 6 connections to which I am ramdomly assigning contacts designations 1-6 to the connector and its mate on the PCB. I may be off 180 degrees or they may have Alfa assignments. It is plain...
  13. 73's de Edd

    Wi Lite wireless lighting switch

    " Took DMM on diode function and it reads 692 one way, nothing other way. " Why certainly you do, that is the voltage level across a conducting semiconductor junction. You just successfully found 692 millivolts being across that unit.
  14. 73's de Edd

    Wi Lite wireless lighting switch

    Sir bushtech . . . . . . . On that MELF profile diode that you pulled , do a Vf "diode" test on it, vice the ohms test that was resulting in its giving a 30 ohms forward reading. Then see if its reading in the 0.500---0.700 VDC range, as would be expected on a good silicon diode...
  15. 73's de Edd

    How can I swap a stock piezo buzzer for a louder 140db buzzer?

    . Sir Pretzelzzz . . . . . . . Considering that your photo is being that Minder branded unit, with its back cover off . We can see that the unit is relying upon a BLACK epoxy covered Chip On Board for the square wave electronics waveform and then is being amplified with the surface mount...
  16. 73's de Edd

    Wi Lite wireless lighting switch

    Will have to comment on the above pic later. With the info on the board readings below: Cap Readings from the 2 boards Undamaged board Blue 18.2V . . . . . . . . . . . Main supply level Orange 2.9V . . . . . . . . .This must be the supply level for the daughterboard Chartreuse 9V . . . . . . ...
  17. 73's de Edd

    Klipsch ProMedia 2.1 subwoofer circuit help

    Sir GuberX . . . . . Why 'soitanly . . . . . This should get her going, if its electronics is functioning, I showed the speaker interconnect but I assumeTHAT is already hardwired in the unit. PICTORIAL REFERENCING: 73's de Edd
  18. 73's de Edd

    Automated Lighting project

    Yeaaaaa ! Old Steve . . . .I thought for sure that your GPS was "bwoke" . . . .perchance, did you run into "Martaine "on your sojourn ?
  19. 73's de Edd

    Wi Lite wireless lighting switch

    Sir bushtech . . . . . Oh how lucky you are . . .to have a GOOD board to compare against . According to a datasheet I found for that NT72C -S10 the relay is actually 12VDC. That round GREEN label precluding my being able to read that relays suffix . . .I had guestimated it in ending.as NT72C...
  20. 73's de Edd

    PCB Repair gone wrong

    . Sir Sotiris Bos . . . . . . . VERY little time left for me today. Will use snippets and fill in tomorrow. Referring to your Post 4 Using its first and second photos. I can now SEEEEEEE the board ! You had a sustained HIGH voltage to your plugged in unit to take that YELLOW Varistor to...
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