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Old 10-05-2013, 03:22 PM   #1
leaver
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Default LG 47LM4600-UC 47 inch LCD TV With Sam Young Caps in Power Supply

This TV would not come out of standby. I replaced shorted diode D607 on the power supply board and the set worked fine for a few days then quit again with the D607 shorted again. All the caps on were Sam Young and they looked fine to the eye. But I decided to replace them all since that brand is on the "Bad Caps" list. That did the trick and the set has been working fine for several weeks.
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Old 10-06-2013, 04:51 AM   #2
japlytic
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Default Re: LG 47LM4600-UC 47 inch LCD TV With Sam Young Caps in Power Supply

Good repair job.
Electrolytic capacitors can fail without any external signs.
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My first choice in quality Japanese electrolytics is Nippon Chemi-Con, which has been in business since 1931... the quality of electronics is dependent on the quality of the electrolytics.
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Old 10-08-2017, 05:14 AM   #3
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Default Re: LG 47LM4600-UC 47 inch LCD TV With Sam Young Caps in Power Supply

I just fixed one of these. Had standby light and 164v across main cap. I tested diode D607 and it read short in circuit. Pulled a leg up and it was good. 1 inch away from it I saw the remains of a small blue cap. There was another one very close by, a 101k.
I pulled one off a junk board and transplanted it. A working tv!
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