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  1. 73's de Edd

    Need help troubleshooting control board

    Sir waybel . . . . . GREE E E E E A A A A A A AT on that forthcoming info ! Now see what I needed it for below, as that low voltage power supply is needed for powering up the BRAINS section of the board in its densely populated right top quadrant. ( lil' ole White ice cube relay also says me...
  2. 73's de Edd

    Need help troubleshooting control board

    Sir waybel . . . . Maybe you haven't yet, caught up to my latest posting ? You say . . . To test that low voltage which is using pin 8 IC do i use pin 1 and 8 to test? How can even I, know, if you still haven't given me its ID. My friend i think what you are asking is way above my skillset...
  3. 73's de Edd

    Need help troubleshooting control board

    Sir waybel . . . . . Don't expect textual or intellectual perfection on this context as it started out as initially being a private conversation Don't I get any response to my #14 posting . . .or . . . are you still in the process of collecting that info ? In the interim, I have developed...
  4. 73's de Edd

    Trying to repair a circuit board for a rolling ball clock

    It might be a good idea to now do the fresh solder reflow soldering of all of the solder joints on the PCB as by earlier mentioned procedure.
  5. 73's de Edd

    Trying to repair a circuit board for a rolling ball clock

    I'm sorry but I don't understand where you want me to solder/tack a wire across. I feel sure that you properly read out / interpreted the initial jumpering of the new 220 across the 100 ufd associated with the 1.5 V filtering. But on the involved board end . . . . . . . that has longer span...
  6. 73's de Edd

    Need help to identify this zener diode

    On post #20 { Start 120 font type sizing} EXACTLY ! ! ! ! {End 120 font type sizing} . . . . . As was equally being PRECISELY, and samely interpreted, by the use of my 24 inch Baccarat crystal ball. "I detect some embarrassment from the OP at being pointed in the right direction...
  7. 73's de Edd

    Trying to repair a circuit board for a rolling ball clock

    Three cheers for ye olde goode wyfe ! . . . . . ( my message . . . . to be forwarded on to her . . . . . from a loooong ta l l l l l l Texan ) With you having the potentially good and newer stock 220 unit , with full lead lengths ? I presume. I would initially solder tack install it in...
  8. 73's de Edd

    Need help troubleshooting control board

    Sir waybel . . . . ( Whut's a waybel ? ) What you're going to have to do is remove that large device first off. I would Hold Off on that . . . . or even considering that . . .until initially seeing if any of the BASIC board requirements are initially being met. More is to follow . . . as...
  9. 73's de Edd

    Trying to repair a circuit board for a rolling ball clock

    CHICKEN LITTLE WAS RIGHT ! THE SKY IS FALLING . . . . With little pieces of conformal coating falling off the board ! From their either, initial, non adhesion / coverage or exposure to a rotationally abrasive frictional action. Followed by their exposed bare copper traces then being shunted...
  10. 73's de Edd

    Trying to repair a circuit board for a rolling ball clock

    Sir @Iguanaman . . . . . Voltage between the two black wires coming into the board is 6.3 volts. Voltage to the two wires going to the clock is 0.85 Now 0.85 VDC serving as 1.5 will not go, particularly when its derived supply source . . . .6.3 VDC drops on down, say, to it then being 4.5...
  11. 73's de Edd

    Yamaha psr e403 low sound output from speakers

    Sir Harald . . . . . . . . .Tnx ! . . . .for restoring that schema image that post images had dropped . Thank yuh . . . . .thank yuh very much . . . . . a la Elvis and fellow workmate . .ta l l l l l l l l l Jack Kilby.
  12. 73's de Edd

    Life fitness f3 motor works (tested) belt won't move help

    unless you have access to test equipment of experience in taking measurements and working with potentially fatal voltages...... PLUS . . . . many GOOD photos of the board and unit
  13. 73's de Edd

    Trying to repair a circuit board for a rolling ball clock

    From what EXACT point to point connections, was this BLACK wire making ?
  14. 73's de Edd

    Trying to repair a circuit board for a rolling ball clock

  15. 73's de Edd

    Arcam Solo Mini - dead CD player

    Sir dogbert . . . . BR2001, however was happily chucking out 15V Say feller ! Do you know how potentially close you might be to finding yourself a free no cost repair ? Let me now throw a bit of further enlightenment your way. Start with a stone cold dead unit and therewith, we should...
  16. 73's de Edd

    UHF receiver issue

    Using photo 1 . . . . . seems like that shielded line running to the left, is your received audio output. Now, from right of pcb board center . . .of a BLURRED picture . . . . might that end 2 or 3 ? position switch be for a choice of received frequency operation and seems like the very...
  17. 73's de Edd

    Intercom PSU fix/ replace?

    The third pic seems to have all 4 slots with their dedicated connections . By the shorter blue . . .unconnected . . . wire length , one would suspect its original connection being into the other side of the transformers slots. Will a lifting up of the white tape on that side, reveal the fine...
  18. 73's de Edd

    Trying to repair a circuit board for a rolling ball clock

    GREAT feedback info ! THAT many years . . ! ! ! . . .I would have thought that the balls would have worn down to BB sizes. And you have probably become unaware of the constant background noise . . . . such as might hinder a new owner of a " noisy" grandfather clock. BUT if you have need to...
  19. 73's de Edd

    Arcam Solo Mini - dead CD player

    dogbert In looking at your 1st reference photo , at left top corner, it certainly looks like those are the solder blob sides of that 10 pin connector. That has the very top connection being #1 ground connection and then the clincher is the Z1 zener diode going over to connect into pin #4...
  20. 73's de Edd

    Lava lamp

    On that board we can see 3 sets of R B G LED's and 3 driver transistor (or series FETS ? ), 3 resistors and some E - caps. Check out, to see if this DEDICATED LAVA lamp I. C. could be used. APPLICATION . . ...
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