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  1. B

    Help needed to understanding why only the left-hand part of a remote control works.

    For decades I've used a strong degreaser and tap water for cleaning these devices & almost always with very good results. Now, the right-hand buttons were requiring to push them very hard so decided to open it and clean it in the usual way: a small brush with degreaser, tap water on the brush a...
  2. B

    Need datasheet for what appears to be an oscillator...

    I took this from a sat receiver's board with the following markings: GI DCT2000 PH7 MB 240684-028-99-RA Made in Taiwan: WWEI 2MV 94V-0 The metal casing had a little rust and, after slowly cleaning it, it shows partial information as shown in the attached photo. If, in the case someone...
  3. B

    What's the function(s) of the extra contacts on so many cellphone's batteries?

    Someone gave me a Zune device telling me that it was an iphone & I thought it was an ipod instead. It took 2 different persons trying to investigate this device & more than a week for me to get it right. Obviously, the batt. was fully discharged & there was no cable or base for it... I watched...
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    How to find info on this peculiar transformer below?

    Almost sure that I took it out from a Bose radio many years ago. Would like to have some info on this item like voltage ratios & current limits. Think it looks like it because there's a 'noise' reason for it but not sure, just thinking that it is for a Bose apparatus... See photo attachement...
  5. B

    Have a first generation FireTvStick that entered an infinit loop of optimization: what can I do?

    I've already called Amazon for dealing with the situation but after 2 hrs nothing has changed. I want to know if there's the possibility of rescuing the ddvice, somehow! Thanks in advanced!
  6. B

    Trying to identify something that resembles a transformer!

    I don't know from where it was taken nor when, but what surprises me is that it shows only 3 cables but physically looks like a typical xformer. What it might be and what possible uses it might have? See attached photo... The characters shown are (from top to bottom): RD 220 V \ BN 115 V \ BL...
  7. B

    What app is good & free for electronic design on Android platform?

    I'm using a Kindle Fire Gen V tablet. Think I'm able to download from Google's App store AWA from the Amazon one.
  8. B

    Unresolved issue related to power-in

    A niece of mine bought two mosqitoes zapper more than a year ago & gave one of these to her mother. My sister gave me that unit about 4-6 months ago because it never worked for her. Have no idea if my niece's still exists or someday worked for her. The thing is that I openned it to see what was...
  9. B

    Unknown components

    I've openned 3 different remote controls for tv's and don't know what kind of component are the following: <800C or G944>, <4.00xL> and <T4.006e>. Have googled those codes (in fact, used Yahoo search engine, Google and Duchduckgo) but found nothing. Also, have used specialized sites like...
  10. B

    What reason could be for a food processor's motor to run backwards?

    Have a mini food processor that was given to me a long time ago that never was used and about two days ago tried to make a pureé but much liquid came out of it making a big mess. When, later, I made it to turn without any liquid inside noticed that, according to the blades, it was going in the...
  11. B

    Does someone here know what data a Chromecast delivers to the internet?

    I wish I knew why for delivering content that I've recorded myself I've to have an internet connection and the dongle connected to the modem for casting to a tv. Is the amount of data sent big? Are there other alternatives less demanding or more direct to casting?
  12. B

    Have seen many Youtube videos related to induction heaters but never for water?

    Is there a reason not to use this technology for heating water for taking a shower? I think someone somewhere has tried this already and I want that input before I try it myself! Thanks in advanced.
  13. B

    What could be the cause of vertical lines at the screen of a Vizio tv?

    The sound and other functions seem to be ok. Below I',m sending a photo of the screen as a sample of the problem.
  14. B

    Emerson MW8779W doesn't heat but turns on!

    This microwave oven didn't come with any schematic. What I've found is this: ---> 0.8 ohms between primary of power xformer; ---> infinity resistance between primary & Gnd; ---> a cable between primary electrode & Magnetron shows infinity to Gnd; ---> another electrode from this xformer to the...
  15. B

    Have been given a disassembled Whirlpool grill-microwave oven with missing decals & fuses?

    Have tried in 2 days & more than 4 hrs to stumble with that model & even chated with someone at Whirlpool but got out empty hands. This unit was bought about 1 yr ago probably at Walmart. It suddenly stopped working but appeared to be on. The son of the owner openned it & took out "2" fuses out...
  16. B

    Jumpstarting unit PS1100 may be incapable of charging?

    This unit was given to me many years ago but the battery was dead and I left it untouched a long time. I then needed to charge a car battery but it's not performing the job. I would like to diagnose the unit and repair it if not too costly. The power cable is missing but I connected it to the...
  17. B

    Help in deciding method for de-modulating? a signal to extract one frequency!

    Maybe, it's not clear enough! For years I've been thinking of designing & build a remote controlled sailing-motorized boat & controller. This means that the boat itself should be made by me as well as the receiver at the boat. I've been thinking of using a recorder (the musical instrument) as...
  18. B

    Aerial (roof) rotating antenna operation?

    The particular case here is one of those systems where you have a light antenna on the roof, a little box inside controlled by a remote control for rotating clockwise or counterclochwise and the antenna connection and box is through a single coaxial cable. My questions are: 1) is the box...
  19. B

    Help or advise for diagnosing Verilux floor fluorecent lamp controller.

    A few months ago someone gave me a supposedly good Sylvania lamp and after trying to find some info in the web about it decided to open it to check its inner components, if any, because I found nothing useful at the web. Apart from the plastic cover nothing has been damaged. A few weeks went by...
  20. B

    Hello to all, hope you have a very good 2016!

    I'm new at the forum and want to tell you that it is not always easy to find a decent forum for owr issues; hope this is one of the good ones! I'm at Puerto Rico, in the Caribbean (think many of you are wearing rather heavy cloth right now: sorry for that). I'm going to post my first issue...
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