Forum Topic

Ask Sir Tony - an Electronics/Electrical Q & A thread

  • I have a question.

    According to my electrical diagram PP is 200AT

    PP1 at 70AT and PP2 at 150AT, should PP be 220AT?


    Thanks
  • If I'm not mistaken, for simpler calculation, add the two then multiply by 80% (sort of duty cycle factor), then get the product and check against the nearest standard panel rating.
  • Nakita ko na yung problema sakin. Biglang di sinupport ng mobo ko tong ram, 3200Mhz yung ram ko. Pag tina-try ko i-enable yung XMP profile, dun nag loloko tong PC. Stuck nako ngayon sa 2133Mhz. Kesa naman di ko magamid. :(
  • mga master, skali mgpasetup ako sa buong bahay ng DC power supply 12v/24v at nasa labas ung DC source ko. pano ko ito mamaintain sa buong bahay pra masupplyan lahat ng dc appliances? thanks po!
  • Thanks senok
  • tanong lang mga sir, hinge lang ako idea magkano parepair.
    sa 32inch TV, repair ng backlight ng LCD TV., nakikita ko yun logo kapag nag boboot up, madilim lang, kaya sigurado ako backlight ng TV yun may sira. wala na warranty

    pa price quote lang .thanks
  • around 1000 lang nung pinagawa ko yung Sony 32" LEDTV ko sa isang local electronics repair shop. Problem is busted lang yung 1 LED. 1 year since the repair okay pa. Dinala ko sa SONY center mismo ang quote sakin ay 10k, palit motherboard ang sabi. Di repair ginagawa nila, replace lang.
  • Nakita ko na yung problema sakin. Biglang di sinupport ng mobo ko tong ram, 3200Mhz yung ram ko. Pag tina-try ko i-enable yung XMP profile, dun nag loloko tong PC. Stuck nako ngayon sa 2133Mhz. Kesa naman di ko magamid.
    speed doesnt matter naman daw.. If pang gaming or basic usage lng. .. Diko lang sure in other activity like photo / video editing etc.. Unless kung gagamitin mu yung ram sa Ramdisk software.
  • Please recommend saan the best bumili ng BNEW and Heavy-duty na

    Gasoline Inverter Generator.

    thanks a lot, mga Sirs.
  • paano kaya malalaman if ilang volts ang output nito? from CD/FM/AM Stereo from US, naisaksak kasi sa 220v, 110v lang dapat.

    open yung PRIMARY
    3ohms SECONDARY

    E190246
    HF-48202L2N

  • ^
    Not sure myself, but there's a good chance that it's 12v. How many wires does it have on the secondary?

    Can you take pics of the filtering stage of that power supply? Usually it will have 4 separate diodes in a bridge configuration, or a single 4-pin bridge diode, then one or two beefy electrolytic capacitors.
  • 2 wires lang SECONDARY

    12v sa net yung E190246, pero wala kasi yung 2nd part number na HF-48202L2N
    <click here for link>

    12v din pero, iba yung part number
    HF-48224L2TN
    <click here for link>



    btw, yung putol na 2 RED wires, yan yung output from transformer.

    thanks

    -- edited by piLio on Mar 15 2019, 03:42 PM
  • ^
    12v seems likely. But not I'm more worried for the other parts of the power circuit. I don't know if that blob near the Philips screw is just epoxy or silicone, or some kind of board damage. The big electrolytic capacitor needs to be checked too.
  • parang glue/soft epoxy/silicone lang yan sir, wala pa leak capacitor, hindi din bloated.

    try ko na lang kabitan ng 12v 3-5A transformer, ano kaya ang best and safest way para i-test ito with new transformer, low voltage muna? meron akong transformer na multi volt from 1.5 upto 15v 3A yata

    -- edited by piLio on Mar 15 2019, 04:02 PM
  • ok na, 12v 3A transformer ginamit ko




    -- edited by piLio on Mar 16 2019, 01:54 PM
  • ^ Good to hear.
  • Hello po,

    saan po ba pde mag pa ayos ng motor ng Vaccum cleaner? Makati Area. Karcher wd2 natanggal turnilyo nung lock nag wiggle yung motor umusok.

    Service center replacement almost 6k for motor. tinalo pa brand new. hehehe.

    Salamat po
  • ^bili ka na lang ng bago paps.
    shop-vac micro 16L less than 5K(sale) lang bili ko sa ACE.
  • Post deleted #12209004