Understood. Thanks
chewbacca78
Member
Last Activity: 06-03-2015, 05:24 AM
Joined: 05-25-2015
Location: Singapore
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Re: Sharp LC-40LE830M no power
Understood. Thanks
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Re: Sharp LC-40LE830M no power
Is there anybody who can help me with my problem? Thank youLeave a comment:
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Re: Sharp LC-40LE830M no power
hi tibimakai, thank you for your suggestion but is it possible to circle on the board so I won't make any mistake as i'm a noob in troubleshooting tv. Thank you.Leave a comment:
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Re: Sharp LC-40LE830M no power
Couldn't sleep without taking the pics...so here they are.
Any advice will be much appreciated. Thank you.
...
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Re: Sharp LC-40LE830M no power
hi newtothis, thanks for your patience and help in guiding me to check on my PSU. i'll have to continue tomorrow as it's almost midnight here in Singapore. Gotta rest now and work tomorrow. I'll remove the power board and will try to take a clear picture of it and hopefully budm will help me out with it. Thanks again
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Re: Sharp LC-40LE830M no power
i got 0 VDC at the point circled red...Leave a comment:
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Re: Sharp LC-40LE830M no power
sorry my bad, both long capacitors measures 330VDCLeave a comment:
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Re: Sharp LC-40LE830M no power
it reads 240V with negative end at the connector and red at right side of fuseLeave a comment:
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Re: Sharp LC-40LE830M no power
voltage at the main input of the PSU measures 240V. I then place the red probe on both ends of the fuse and the black probe on the ground and measure both sides as 134.4V. Long capacitors still 0VLeave a comment:
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Re: Sharp LC-40LE830M no power
Taking the black and red lines as the probes, i first place the probes at the ends of the fuse itself then at the wires....Leave a comment:
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Re: Sharp LC-40LE830M no power
it reads 0VLeave a comment:
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Re: Sharp LC-40LE830M no power
in ac?Leave a comment:
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Re: Sharp LC-40LE830M no power
yes, i did continuity check on the fuse and it's ok. it's not blownLeave a comment:
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Re: Sharp LC-40LE830M no power
i measured both long capacitors and got 0VAC for both...am I doing anything wrong? Why is everything 0V??Leave a comment:
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Re: Sharp LC-40LE830M no power
you mean the one circled in red? yes, hear continuous beep on my meter. However, the resistor i circled is rated at 2M ohms but i measured around 1M ohm. is this ok?...Leave a comment:
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Re: Sharp LC-40LE830M no power
I'm from Singapore so reading i got from my mains is 230VAC.Leave a comment:
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Re: Sharp LC-40LE830M no power
i hope i'm doing it correctly. i measured the pin with the circle with my ground on the screw and i got 0VDC...Leave a comment:
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Re: Sharp LC-40LE830M no power
hi vinceroger69, where do I measure stb? Please see photos.
I also measure around the resistors and found one to be below reading. It's rated at 2M ohm but i measured around 1M ohm. Not sure if this is one of a few components that needed to be changed....Leave a comment:
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Re: Sharp LC-40LE830M no power
Hi mmartell, i repair printers but i'm a noob at tvs so please pardon my questions.
I attach pics of the PSU and mainboard. looking at the connector, do I measure the 5VDC on the metal part of BU5V? If I did it correctly, I got 0V on the meter for that....Leave a comment:
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Re: Sharp LC-40LE830M no power
I already did a visual check on the capacitors but don't see any bulge in any of them. I did a search and read that some bad capacitors may not have a bulge but I'm not sure which capacitor should I start checking first if I have to remove them. any idea?...Leave a comment:
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