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  1. 73's de Edd

    Thermal fuse on printed circuit board

    To me . . . . . that just looks like a blown fusible link that was etched on the copper foil and is dependent / and / needing to be replicated of the same dimensions and using the same oz weight of foil. Definition of detail, precludes my making out the associated background clutter, but is...
  2. 73's de Edd

    police lights with 555 timer

    As a MINIMAL fact / statement . . . . . Your schematic does not show the 4017 having its pin 8 connected to ground and it's pin 16 connected to power. Separate observation . . . uf der " Nealster " is is confirmed below . . . . . but may not be critical, since they are overlapping and...
  3. 73's de Edd

    police lights with 555 timer

    I see that YOU /and/ SCHEMATIC CAPTURE know that and confirm that pin 1 is its ground on the 555 and that pin 8 is its power. But, by reading both of the above schematic layouts do YOU /and/ SCHEMATIC CAPTURE AUTOMATICALLY know that pin 8 is ground - and that pin 16 is its power input pin on...
  4. 73's de Edd

    Make electronics experiment 11

    The way I am seeing that situation, is the coupling from the 22222 audio amplifier transistor is using a 100 MICROFARAD electroloytic capacitor. Now, the HIGH capacitive impedance that would be afforded by a mere 0 .01 ufd ( MICROFARAD ) wouldn't even let a chirp be produced by a tweeter...
  5. 73's de Edd

    repair Tribest Sedona SD-P9000 dehydrator -- low DC voltage from power board: maybe rectifiers or caps?

    Brush . . . . when getting your unit operational again, could you also put a meter probe on ground of the - of the E can filter closest to the UL20000 series IC and then use + probe to read all of the voltages on the WHITE center connectors 10 pins. That could then assist you if there are ever...
  6. 73's de Edd

    Electric Blanket Repair - Perfect Fit Controller

    Hel l l l l l l l l l l l o o o o o o o Debbiewaugh1962 . . . . . . ( now, won't that make you about 60 yrs of age ? ) I'm reading his post and nowhere do I read of a fuse being mentioned ? Also this is the first E-blanket, that I would see being powered with an 18VDC power adapter . . ...
  7. 73's de Edd

    Get oscillator

    WHUT you talkin' 'bout, Willis ?. . . . . On the illustration of post #8 there is a back in time holdover example . . . . . of ye olden tymes, in the 1920-30-40's where . . . . . a NON connection of passing / crossing wires is using a half circle inserted in the wire run to designate a non...
  8. 73's de Edd

    repair Tribest Sedona SD-P9000 dehydrator -- low DC voltage from power board: maybe rectifiers or caps?

    it did fire into life when probing the diodes with power running Doesn't that just . . . SCREAM . . . at you . . . . . of microscopically finite . . . . poor/and /or intermittent connection(s) ? Pull that units 5 diodes off the board ( NO makee BOO-BOO on pads ! ! ! ! ) and if you have 5...
  9. 73's de Edd

    Repair flash board - DSC-W830 Digital camera

    Sir tsalat . . . . . WHY ? for . . . . . . do you think THAT inductor is bad ? and that it is EVEN BEING ASSOCIATED with the flash circuitry ? https://servlib.com/sony/digital-camera/dsc-w830.html https://servlib.com/sony/digital-camera/dsc-w830.html?start=10 Sequentially use the same...
  10. 73's de Edd

    repair Tribest Sedona SD-P9000 dehydrator -- low DC voltage from power board: maybe rectifiers or caps?

    Your D5-6-7-8-9 string are ONLY working at ~1.5 % of their rated capabilities, so I also suspect an open / intermittent . . . SOMEWHERE ? . . . in that foil string diode/ chain. THE NEXT ? PROBLEM AREA . . . .? Also probably 100% ignored, was the heat sinked semiconductors at either end of...
  11. 73's de Edd

    Remington Shaver HC6550 not to full Power

    Just recovering from my first " FULL BLOWN " case of the influenza . . . . . in 50! years.
  12. 73's de Edd

    Remington Shaver HC6550 not to full Power

    Well at least you will have a new motor as reserve. I would be more suspicious of those special Li Ion cells. Would you measure their dimensions and guesstimate them being closer to the physical size of a AA or a AAA conventional single zinc-carbon or alkaline cell. As you would have read, he...
  13. 73's de Edd

    RCA F19207BC (CRT TV) shuts itself off even after new HOT install.

    Looking at that circuits surrounding discrete components, that LOW ohmmage is being an impossibility. So . . . . carefully pull that transistor out off circuit / off the board and do a retest and expect the same lower reading, and then expect the need for replacing of that Q4114 item. Its...
  14. 73's de Edd

    Whirlpool Side by Side American style Fridge Freezer too hot and too cold

    Sir westfielder . . . . . . . Lets start with . . . . our most revered, right honnable and esteemed . . . . . Kelly with his " EYE" . . . and his brevit . . . of . . .Nail . . .Hammer . . .Hit ! Utilizing my learned observation of that boards top components layout *** . . . . . I...
  15. 73's de Edd

    Need help troubleshooting control board

    OH BOY ! . . . . . now we's done gots ourselves TWO players in the game . . . . @waybel and @GILVERWEY67 As for your seeing the (KBU2510) in the power supply aspect of the board, its not being used in the common manner in which you would expect. I initially submitted a goldmine of info on my...
  16. 73's de Edd

    Trying to repair a circuit board for a rolling ball clock

    Sir Iguanaman . . . . I had made some queries via the Conversation / Private Message boards of the forum but got no comeback from you. You Say . . . The batteries are "C" cell types. With no side perspective referencing, they looked as big as D cells to my eye.. Even with C cells they have...
  17. 73's de Edd

    Identify diode (SMD)

    Sir Spikey . . . . . . And finally, here is your confirmed, million dollar referencing . . . . . . of . . . . Page 2/5 https://datasheet.octopart.com/SM6T15CA-STMicroelectronics-datasheet-8321715.pdf marking code EE . . . . 18 Volt Track down that nearby . . . . .what seems to be the sole...
  18. 73's de Edd

    RCA F19207BC (CRT TV) shuts itself off even after new HOT install.

    Are the legs of Q113F (first pic) shorted? i.e. touching? They are all bent over . . . but ARE looking adequately spaced apart . . . to my BROWN eyes . . . . . but its not being a BLUE KELLY eye. MobiusOne . . . . . Before ever powering up again, be sure that the Q4114 Power FET clamping...
  19. 73's de Edd

    I'm new and need help with a capacitor

    Should I just pitch the board? How could one POSSIBLY even know . . . .with a probability of multiple 1000's of choices with you not even have PROVIDED a manufacturers brand as well as its specific model number. Your ruptured part will be on the AC line input portion of the power supply...
  20. 73's de Edd

    I'm new and need help with a capacitor

    Indeed that unit needs replacing . . . . . . but its being related to your PRINCIPAL problem . . . . When I turn on the tv it gives the name screen and freezes As much as your having a comparative no engine start problem . . . . as, your then changing to your spare tire and expecting positive...
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