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A flyback transformer (FBT), also called a line output transformer (LOPT), is a special type of electrical transformer. It was initially designed to generate high voltage sawtooth signals at a relatively high frequency. In modern applications it is used extensively in switched-mode power supplies for both low (3V) and high voltage (over 10 kV) supplies.
this is use only on monitor the old one that used CRT TUBE.
12 VDC , 4.16 A (4,16 A)
Frequency: 50/60 Hz
Power Consumption: less than
36 W in operating mode.
I think the other two pins are not used. It just requires the 12 Volts DC. +ve and -ve, positive and negative, respectively.
The problem is bad capacitors: 5 pcs. 820microFarad – 25v and 1 pc. 330microFarad -25v. Replace these capacitors. Then re-solder the two transformers of inverter side. Also re-solder the power transformer and the inductor coil.
To open the casing:
At the bottom of the stand just twist the knob to unlock. Then, use a small flat screw driver beginning from the bottom (left or right) then using a hard credit card (or alike) then slide/glide it in between the cover plastics.
Triangle Tech Whiz
Through my past experience I mwould remove the solder point at the input power B+ line to primary winding FBT. If the HOT has shorted there will be no power.Straight to the point if you know where the HOT is , you can desolder the middle pin or collector of the HOT transistor. If you desolder the pin which result the power led light turn up. That indicates either FBT or HOT has shorted
check the -ve ground voltage (we called it G1) on the card back side of CRT gun. the 1 or 2 no. pin. when u switch on it the voltage must be between 40 to 60 in negetive. if don't then follow the track and replace the controller transister. also the electolytic capacitor in that line....change the filter near EHT transformer. (that might be 10mfd/250 volts DC). used to filter that negitive supply.
if the monitor is compaq or samsung model then it is different.
for that u have to tell me then i will tell u....