How To Test An LDR

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1. 

   Waleed Rishmawi

   June 1, 2013 at 4:29 pm

   thanks for sharing, that is a new information to me

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2. 

   lee tucker

   June 1, 2013 at 5:25 pm

   hi jestine,im fixing a 19"lcd tv,the problem on this tv was that a child banged the back of this tv and i think caused a short between the psu and the rear of the lcd panel,there was 2 round burn points on the back of the lcd casing on opening,.the short happend between the minus of the bridge rectifier and the b+ of the smps transformer,there is what i think is a fused resistor its marked "R111" on the board,coming from the + of the bridge, trace goes to the filter cap inbetween filter cap and b+ of the smps there is this "resistor"it looks like a pico fuse and has a mark on it "2a"its blue in colour ,on continuity test it tests open circuit,on resistance test it shows 10.35 K OHM on my fluke 87v in autoranging mode,is this part failed?is it a fused resistor or a normal pico fuse?thanks jestine,lee,ps i can send you a picture of the part if you need it.

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   • 

     Jestine Yong

     June 1, 2013 at 11:21 pm

     HI Lee,

     Appreciate if you could send to me the photo and on which location-thanks a lot.

     Jestine

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3. 

   lee tucker

   June 1, 2013 at 11:42 pm

   thanks jestine ,email sent to you,lee

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