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  1. Martaine2005

    Identifying a capacitor

    Sorry, forgot to say where you can get them. Any electronics outlet, Digikey, Farnell, CPC, Element 14, RS components etc. Depending on where you are located, these stores might or might not be available. Martin
  2. Martaine2005

    Identifying a capacitor

    Hi, it appears to be an electrolytic capacitor of 220μF (micro Farads) and 25 volt. 105 degree C. Martin
  3. Martaine2005

    Amplified Mini Speaker Modifications

    Swapping the battery for a DC source is easy as you already tried. The switch is only momentary. You could try jumping the switch contacts but the unit might just power off. If you can find the details of the microcontroller, you may be able to power it directly from your DC source. Somebody...
  4. Martaine2005

    Boxed In- why doesn't it work when in the box

    That is quite normal. Providing you have the space to one side. Rotate the box once a week though, or the electrolyte will seep out. Martin
  5. Martaine2005

    Boxed In- why doesn't it work when in the box

    Once in the metal box, there has to be either a short or open circuit somewhere if it works outside the box. If @Harald Kapp 's idea shows no short without battery connected, perhaps you have the PCB sitting on the battery shorting the circuit? Other than that, it can only be the 6.35mm jack and...
  6. Martaine2005

    Power Supply

    It's well worth keeping as large transformers are worth their weight in gold these days. Martin
  7. Martaine2005

    Pioneer SC-1227 A/V Receiver issue ... need some help ...

    Just to add to my previous post: As you seem to have a different problem upon reassembly, have you checked for cracked/dry solder joints?. Very common problem that causes all sorts of issues. The fact that you moved something may have connected or disconnected that particular connection. It...
  8. Martaine2005

    Pioneer SC-1227 A/V Receiver issue ... need some help ...

    Given that we don't know the cause or even if it's one channel causing the problem, it's a process of elimination. You can sometimes check caps in circuit but it's best to check out of circuit. I use my solder vacuum pump and clean one leg which takes it out of circuit. Much quicker than...
  9. Martaine2005

    Am i testing it right

    Knowing the secondary voltage is pretty much impossible without stripping the transformer and counting turns. You might get an idea by looking at near by components where the secondary connections are. ie - caps. Martin
  10. Martaine2005

    Am i testing it right

    Not at all, it may have several. The schematic you provided for T1 has only one output. Here for example is a multi-tap: Martin
  11. Martaine2005

    Am i testing it right

    You have lots of different threads. Very confusing. The schematic shows a 25V filter cap after the bridge rectifier suggesting the secondary to be low voltage. Probably between 10V and 16V. Martin
  12. Martaine2005

    Bosch avantixx washing machine wont power up but resistor heats up

    You need to provide a lot more information other than "a resistor heats up". "wont power up" means what exactly? Pictures would be good. Martin
  13. Martaine2005

    Searching for a connector board

    Do you have the donor laptop? You could (painfully) use the original connector and make your own breakout board. Failing that, you'd be better off scraping the ribbon/flat cable and soldering to it. A real PITA. Martin
  14. Martaine2005

    Am i testing it right

    I have not read what the actual fault is. Martin
  15. Martaine2005

    Pioneer SC-1227 A/V Receiver issue ... need some help ...

    If you are correct about "over current", that suggests a short somewhere. But I would expect the main fuse to blow under a short condition. Out of curiosity, did you check the new mosfets before installing them? There are many fakes around. I would be inclined to replace the original ones and...
  16. Martaine2005

    Am i testing it right

    Are you sure you should be playing with 240 volts? It doesn't seem like you should from your questions. Have you checked the door switches with the oven unplugged and door closed and open? Martin
  17. Martaine2005

    Pioneer SC-1227 A/V Receiver issue ... need some help ...

    IMHO, the power supply voltages should have been checked first. Perhaps you should put the old mosfets back and partially assemble to get those measurements. Did you use the correct mosfets and put the pairs in correctly? Do you have an ESR meter? Martin
  18. Martaine2005

    Rigging NES On/Off Board to a Raspberry Pi or other

    A simple continuity tester or mutimeter is required. Check continuity of each wire to each switch position. Martin
  19. Martaine2005

    switch with indicator light

    The illuminated switch will have max voltage and max amps printed on it (hopefully). The terminals should be numbered 1,2 and 3 or A,B and C (hopefully). The internal LED will have a current limiting resistor for the given Maximums. I don't see what a traffic light has to do with anything...
  20. Martaine2005

    Anyone know what this little device is?

    "wireless splash proof shower speaker is compatible with common digital audio devices such as ipod, MP3 players, CD players and laptops." It's a simple transmitter that the radio picks up when on the correct frequency. Amazon (not available) Amazon reviews Martin
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