HOT question....lol

Hi, here is the thing...

with the HOT removed and power on, I measure 0V(this is not good right?)at both B and E (remember, HOT removed)and 113V at C (this is a

15 inch color monitor so 113V B+ seems proper)When I connect the HOT back on, I measure 0V at B and E and OVER a THOUSAND VOLTS at C!!!!!! I have the monitor connected with a 150W light Bulb in series, I can hear the click click click of the PS trying to start but that is it...nothig else. I=B4ve measure the HOT (C4769) with my DMM and i get what it seems to be a short, but looking at the diagram from the transistor=B4s datasheet, I see other components in there that might indicate that the 50 Ohm reading i get, is correct. Can anyone point me in the right direction here?

Thanks...

onyxx: Me thinks you are way over your head here.... you should go to the website for this newsgroup at

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there, with some searching, you will find a wealth of troubleshooting tips, component testing methods, repair proceedures and IMPORTANT SAFETY information that will keep you alive while you are poking around inside your very dangerous television. Your test results with the HOT removed are completely NORMAL... no voltage on the B and E terminals where the HOT was installed and B+ on the C terminal that goes to the primary of the flyback which the other end is connected to the regulated B+ in the power supply.... HOWEVER, the reading of 113 volts seems low..... maybe it should be a little higher, maybe like 125 to 145 volts depending on the design of the television. You should not attempt to measure the C terminal voltage when the HOT is in the circuit and the television is turned on.... the very high voltage you are reading is due to the back emf of the flyback windings getting fast switched by the HOT... and can easily damage your meter... It also sounds like your HOT may be faulty... test again and go to the repairfaq and learn more before proceeding. electricitym =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

onyxx wrote: