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  1. mikey5791

    Anyone know this fuse rating

    Hi to all, Recently I came across to repair a stalled Pensonic brand tower fan Model:PTW-201RI. The fault seem to be inside the motor label as YSY series Fan motor (input 60W, insulate grade 120,Frequency 50Hz,speed 1050+-80r/min). I also noticed a paper sticker outside the fan motor as"...
  2. mikey5791

    AC Adapter model AA-091AD not working

    Hi, I recently dug out this non working OEM AC adapter (input 230V), it was meant to supply output 9V DC for a modem (already sold without the adapter). Tested on the output side with a Digital multimeter but zero power. Then I pry open to check for fault inside the case. Nothing seem burn...
  3. mikey5791

    Need help repair dead switching power supply

    Hi all, I got this piece of dead china made switching power supply AVF brand labelled as 350w from a friend who previouly used on an old pc. When i opened the case nothing seemed burned and no sign of bulged caps. To prevent further damage, i connect a 100 watt light bulb(our country main supply...
  4. mikey5791

    How do I test these Mosfet ?

    Hi all, Yesterday I go thru some of my used parts and found the following three Mosfet (or are these transistor ?). I know that if the Mosfet with label put on top of a table with three pins pointing to my direction, the left pin is Gate(G),middle pin is Drain(D) and right pin is Source(S). For...
  5. mikey5791

    Can I use this LCD monitor panel ?

    Hi all, I have a working Dell E190SF computer monitor but the screen is damaged due to the monitor dropped to the ground. When connected the LCD screen split in the middle and the whole screen is complete unusable. (refer image 0887) However I have a spare working computer monitor from LG...
  6. mikey5791

    Help on how to test this device

    Hi all, Recently I acquired this mini DC supply adapter,but it lack of any cover with missing mains AC cord 220V. The only identification on the pcb is YY 121 but I am not sure what is the output DC voltage. Before I connect a new mains AC cord (the two yellow wire),what are the test I need to...
  7. mikey5791

    Looking for service manual LG Flatron L1942T-PF monitor

    Hi all, Last week, a friend gave away a faulty non working LG Flatron 19" LCD monitor model No.L1942T-PF which was repaired by a technician earlier. I opened the casing yesterday and noticed the power supply backlight inverter board model No.LGP-002L is missing two components by looking at the...
  8. mikey5791

    Need help diagnose HP2009f LCD Monitor

    Hi all, A friend of mine came recently to ask for my help to check a HP2009f LCD monitor with no display which I said will try my best. First thing I do is to plug in the power cable and switch on, but no display, not even blue led light on the power switch. I shine a torch light at the screen...
  9. mikey5791

    How to test CCFL ?

    Dear all, I recently acquired a pair of CCFL (backlight tube) from a damaged Sharp 10.5 inch LCD Display Screen Model LQ15x14. One of the backlight tube with pink and white wire is seen from img 0647 as attached. I wish to use an inverter for CCFL (img 0646) to light up the backlight tube. The...
  10. mikey5791

    [woo] Does anyone know of this breakthrough technology ?

    Hi all, A friend of mine recently introduced and tried to convince me to buy an electricity saving package in the form of a credit card size card called The Kings Saver. You may refer to this website for additional info at http;//wingslab,com.my/products-services/. It is a breakthrough and an...
  11. mikey5791

    How to test this fan

    Hi, I recently salvaged this fan marked as SUNON DP 200A 220-240V 50/60 HZ 0.14A Impedance Protected (refer img-0478). The issue is the AC Mains in my country is 230V but the fan have two green cable running out from the unit (refer img-0479). My questions are as follows: How do i know which...
  12. mikey5791

    How to make use of this

    Hi, I have a dissamble a broken Kenwood breadmaker Model No.BM200 and managed to extract the motor unit and the attachment belt (for spinning the bread pan flipper). The motor unit is marked "WING SHING PRODUCTS (BVI) CO.LTD MODEL : WS 862325...
  13. mikey5791

    Need help diagnose Acer LCD monitor

    Hi, Recently found from storage a 17" Acer LCD monitor which I remembered was kept as spare. The model is AL1717 and I try to connect this monitor to a working CPU. Upon switching the monitor power button, the monitor display yellow standby light. Then after switching on the CPU power, the...
  14. mikey5791

    Need help to clean LCD screen

    Hi, Recently I dug out from store a mini game console (size 4" X 4") build by Epoch Co.Ltd, Japan, the model is a late 1980's type running on DC 3V using 2AA size battery. The LCD screen still works but the external display covered by a thin layer of oil like substance while looking at...
  15. mikey5791

    Need help to repair computer power supply

    Hi, My desktop pc Pentium 4 power supply recently flashed a bright spark and some smoke upon pressing switch on the pc; then the pc not able to turn on. After unplug the wall power cable, I tried open the power supply case (G-TECH SFX-500) and noticed the thermistor NTC 5D-9 is blown and...
  16. mikey5791

    Need help to build police siren/LED flasher

    Dear all, I recently bought a ready made Project kit with circuit board, parts and schematic attached from a China company. The kit is for LED flasher and police siren; the schematic and parts list which I attached. The problem is the LED 1 & 2 does not flash or any sound from the...
  17. mikey5791

    Need help to fix motion detector alarm

    Dear all, I bought this Motion detector alarm some years ago from a shop vendor initially for home or car use but recently tested faulty, no power led light or "sensor" not working. Anyone got any idea how the "sensor" works? There is no model No. and no schematic can be traced. I have...
  18. mikey5791

    Toshiba CRT TV Model 21S1ES- No picture

    Hi, Recently got this 21" CRT TV from junk yard. After blowing dust off the interior and check visually no burnt components, I plug in the power and all TV channel audio & volume seems to work OK but no picture. Later, I tried connect a DVD player to the input side of TV, audio of DVD played...
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