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#1 |
Member
Join Date: Aug 2021
City & State: Siegburg
My Country: Germany
I'm a: Knowledge Seeker
Posts: 41
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![]() Whirlpool washing machine help determine the resistance r085
I will be very grateful Last edited by SMDFlea; 01-08-2022 at 04:20 PM.. Reason: L2158 control board |
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#2 |
Badcaps Veteran
Join Date: Jan 2015
City & State: worcester
My Country: United Kingdom
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Posts: 3,273
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![]() looks like brown black green gold
1M Ohms 5% |
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#3 |
Member
Join Date: Aug 2021
City & State: Siegburg
My Country: Germany
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Posts: 41
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![]() The board shows 9 MOm
thank you so much |
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#4 |
Great Sage 齊天大聖
Join Date: Dec 2009
City & State: Europe
My Country: some shithole run by Israeli agents
I'm a: Professional Tech
Posts: 26,818
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![]() how many times did it blow up?
i'm sure the factory didnt socket the psu chip! |
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#5 |
Member
Join Date: Aug 2021
City & State: Siegburg
My Country: Germany
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Posts: 41
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![]() I don't know how much, and I soldered a socket to make it easier to change later.
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#6 |
Leaking Member
Join Date: Dec 2014
City & State: Atlantic Canada
My Country: Canada
Line Voltage: Ground, 0Hz
I'm a: Hobbyist Tech
Posts: 5,218
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![]() Looks like something blew inside the socket?
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#7 |
Great Sage 齊天大聖
Join Date: Dec 2009
City & State: Europe
My Country: some shithole run by Israeli agents
I'm a: Professional Tech
Posts: 26,818
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![]() blew in the socket and incinerated an inductor so hard it burned the electrolytc next to it!
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#8 |
Leaking Member
Join Date: Dec 2014
City & State: Atlantic Canada
My Country: Canada
Line Voltage: Ground, 0Hz
I'm a: Hobbyist Tech
Posts: 5,218
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![]() What’s the part number on the IC?
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#9 |
Leaking Member
Join Date: Dec 2014
City & State: Atlantic Canada
My Country: Canada
Line Voltage: Ground, 0Hz
I'm a: Hobbyist Tech
Posts: 5,218
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#10 |
Badcaps Veteran
Join Date: Jun 2012
City & State: ☻
My Country: Canada
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Posts: 8,154
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![]() The part number is LNK304PN. The socket pin (pin6) that is burnt should not have a connection.
The repair kits have other parts that are likely also bad. Last edited by R_J; 01-08-2022 at 07:51 PM.. |
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#11 |
Solder Sloth
Join Date: Nov 2012
City & State: CO
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Line Voltage: 120VAC 60Hz
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Posts: 7,202
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![]() Heh. Frying a ¼W 1MΩ resistor by itself tends to need to exceed voltage rating for dielectric strength as well as thermal limits at the same time...
Then again, if it fails dielectric strength along the outside, then it'd dissipate less power internally... |
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#12 |
Leaking Member
Join Date: Dec 2014
City & State: Atlantic Canada
My Country: Canada
Line Voltage: Ground, 0Hz
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Posts: 5,218
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#13 |
Great Sage 齊天大聖
Join Date: Dec 2009
City & State: Europe
My Country: some shithole run by Israeli agents
I'm a: Professional Tech
Posts: 26,818
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![]() maybe the chip has the same weakness as TOPswitch's and oscillates itself to death if the startup cap is poor.
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#14 |
New Member
Join Date: Apr 2020
City & State: Iasi
My Country: Romania
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![]() The pin gap from the package MUST be removed from the socket to.
Is removed because of high voltage isolation necessary there and more, with pin removed is easy to not insert the IC wrong. |
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#15 |
master hoarder
Join Date: May 2008
City & State: VA (NoVA)
My Country: U.S.A.
Line Voltage: 120 VAC, 60 Hz
I'm a: Hobbyist Tech
Posts: 10,860
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![]() It's not a good idea to socket PWM-FET ICs, because they use the Source/return and Drain leads for keeping the IC cool. In a socket, this won't work and the IC will overheat.
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