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  1. 73's de Edd

    Designing A Power Supply

    Well I just saw that Sr Javier made it back to the scene and needs a more positive answer. SO . . . . I pulled a radar IF amplifier strip assembly off my $100 an hour spot on the bench and cobbled up that regulator circuit to evaluate its operation at the very low voltage levels. Indeed it...
  2. 73's de Edd

    switching a relay - but on second switch. ( if that makes sense? )

    Assuming that the fog machine fills in for the ersatz "steam" aspect.
  3. 73's de Edd

    Infrared Remote Control

    Sir AnonyMouse . . . . . . . You say . . . . I don't see where all that audio analysis would be getting me as far as a solution is concerned. Hmmmmm. . . . .I could have started out with: FIRST . . . . You need to get yerselfs a XXX hundreds (or) some are thousands of dollars, triggered...
  4. 73's de Edd

    Designing A Power Supply

    Sir Harald . . . . . .et al . . . . That circuitry is that which I used to replace an OA3 gas tube regulator. It "woiks" magnificently . . . . .even with no omnipresent glow.. In the case of the lower thresholds of the lower voltages mentioned, the 39V Zener still protects the LM317, while...
  5. 73's de Edd

    Designing A Power Supply

    Seeeeeeeeeeenor Javier . . . . . . .(and thats being heaveeee on the Seeeeeeeeeeeeee) Try This One Breadboard it up and . . . . . . . . check it out . . . . . . . CAVEAT . . . . . breadboarding up this circuitry reveals a need to establish a safe low voltage reliability threshold of ~ 10...
  6. 73's de Edd

    What kind of switch should I use?

    http://www.learningaboutelectronics.com/Articles/Double-pole-single-throw-switch-DPST
  7. 73's de Edd

    Replacing Broken Power Circuit Of A Philips Dock

    Sir cybertwenties: Also, just out of curiosity, can we use a 12V,1A SMPS to power the circuit instead of these 6 D cells? Give me more details on your mentioned supply and a pic. On photo # 2 down, you still get an F in your macro-photography expertise, but I believe that I can work with it...
  8. 73's de Edd

    Replacing Broken Power Circuit Of A Philips Dock

    Sir cyberteen: ( and would you be a 13'ish or 19'ish cyberteen) Why 'soitanly . . . . .let me just consult my . . . . . Hmmmmmmm . . . . . . . .Hmmmmmmm . . . . . . .Hmmmmmmm Ohhhhhhh-tayyyyy . . . . .I'm ready ! After fully evaluating your dee-vices parameters: PRE- PLANNING: Would...
  9. 73's de Edd

    Amp In Protection Mode

    Q605 reads on its 3 pins... V ==> E V ==> B V ==> C Q607 reads on its 3 pins... V ==> E V ==> B V ==> C
  10. 73's de Edd

    Infrared Remote Control

    Sir AnonyMouse . . . . . . . ( http://www.waveevents.com/MyFilez/wavs/cartoon/mightymo.wav ) OK on the slight 120 vs 130 model difference . . . . but, even then, your tried procedure, produced no favorable result . . . when using it. Now, in taking a little further trip down the...
  11. 73's de Edd

    Infrared Remote Control

    Sir AnonyMouse . . . . . . . OK . . .in reviewing the already givens: You had two working remotes . . .one stopped . . .the other still worked. The repairman . . . . with an unknown degree of finesse with YOUR particular brand . . .supplied an additional working remote. You still have the...
  12. 73's de Edd

    Goodmans ghd1621f2

    Sir biggrey54 . . . . . . . If you want to seek out the IR receiver counterpoint of your remote, it is being mounted onto the PCB that is being just behind the receivers frontal plastic faceplate. Here is its how to evaluate info: Different mechanical casings variants, used for present...
  13. 73's de Edd

    Amp In Protection Mode

    . Sir Rick79. . . . . . . With your final two voltage readings given, one voltage reflects there being an excessive and imbalanced voltage present at the left side of R564. . . . . . with that excessive 11.77vdc voltage reading . It is sampling from the common junction of the R647 / R645...
  14. 73's de Edd

    Soldering Problem

    Sir Shawn . . . . . . . Most honnable apologies . . . .delay due to family reunion. The STK- 392-560 has proiven to be less than reliable in both Mitsubishi and Sony's application, so there is an upgrade in the form of a pin for pin and case identicality in the form of a STK-392-570 ...
  15. 73's de Edd

    Can't find this symbol

    Sir Hsnopi . . . . . . . . . . . . If your "reconstruction" does not incorporate using connector set P4-P3 the only shielded wire run there is, is being the P5 connector run over to P2 connectors pins A and D. All of the other wires require no shielding and the W1 thru W5 assigned...
  16. 73's de Edd

    Newbie needing help with amplifier problem

    Gonna sell that unit for BIG G G G G G G BUX now . . . .Huuunnnnh 4 volts going into a 22 ohm resistor what should the voltage coming out be? It will still be 4 Volts UNTIL you put a load /resistance on its output to make a COMPLETE loop feeding back to the power source them it...
  17. 73's de Edd

    Soldering Problem

    Sir Shawn . . . . . Assuming that you still have one of the ORIGINAL convergence IC's installed . Check the 392-560 marking and see if it is stamped on the NEW part . . . .try a Q tip with a bit of acetone or toluene or MEK or xylene or male tiger urine or some of Mamma Cass's fingernail...
  18. 73's de Edd

    Need to know about this part

    Sir pharaon . . . . . Can you give us a photo of the flip flop / foil side of the board.? The capacitance and voltage rating of the GIANT capacitor ? Are there are 2 or 4 diodes at the end of the board near the P1-P2 AC input terminals of the PCB? 73's de Edd
  19. 73's de Edd

    Soldering Problem

    Sir Shawn . . . . . You said: " the heatsink. IC8001 came back at a barely warm 100 degrees " That means that you need to read back where I mentioned the need of checking the "wetness" of the heat sink compound under IC 8002.. If its sitting on a dried out and thereby, thermally isolated...
  20. 73's de Edd

    What fuse would a need?

    Aside: Tha fios agaibh . . . . Gomer sez HEY ! . . . . . . .now if we can just find Le Martine.
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