Hi guys Can i use An electrolitic cap that is 4.7uf 250v in place of 4.7uf 160v
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Hi folks,
I'm new to this forum. So my trusty 17-year-old LG 47" LCD recently died. As I was booting it up, I heard a hum followed by a loud bang, sounds of pieces flying around, and loss of power to the unit. Inspecting the PSU, I saw two obvious problems: a blown thermistor (bang + flung pieces) and a visibly bulging main cap. Inspecting as many components as I could with my Fluke MM, I diagnosed that the following components on the "hot side" of the board were also bad: one of the 2 main MOSFETs, main 8A fuse, small cap (25V 47uF) connected to main caps, and a blown... -
anyone heard of these caps before? at first glance i mistook them to be Elna caps but closer look and it was elite. not sure if they are known failure prone brand.
also they are 47uf and 450v. why are they so large in height? i can get replacement 450v 47uf caps that are a quarter the height. what am i missing here?
if i were to replace them what should i be looking for?
they are on the power board of a toshiba (vestel) tv power board.
pic attached... -
I've got a Monitor that's not showing any video, and I found this blown Fuse. As you can see from the photos, the board location has T4AL / 250V. Any assistance is greatly appreciated. Thanks!...
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hey Im very new to repairing electronics with capacitors as well as using a multimeter so I need so help/guidance fixing this issue
recently I was handed a family members old NAD C320BEE that they had in their loft for storage for a few years but when powered on it went into power safety mode due to a problem on the protection circuit somewhere before it went into storage I was told it worked fine I found lots of people online talking about how the capasitors are known to be pretty bad in this model and can cause this issue the only problem being I don't have much experience sorting... -
Turned off completely
1 Check D7, D8 and D9 on the power supply (17IPS62).
Note: It is preferable to replace all 3 diodes together.
2 replace Q13 (MMD70R600P = 700V/7.3A FET), U1 (1Q001 = FAN6300AM), R59, R60, R61, R62 and R63 (all 5 from 1R2), and R77 and R79 (both from 10R) on the primary.
3 MOSFET Q4 is shorted and C113 has lost capacitance. Mount Q14 (may also be referred to as just Q4; 12N50E) at the top of the PSU, and replace C113 (47uF/160V). Also check all the components on the power supply.
TV shuts down by itself or...
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