Beko DCU7230B no power

#1 от 31/12/2018 18:36

Condenser dryer regularly maintained and cleaned, used indoors only with adequate ventilation surrounding the machine.
After a dry cycle returned to find No Power or response from control panel.

Control Board:
Mark016R
P/N: 2963281900

R4 - 39ohm resistor(open, burnt out), D2 - 1N4007 (suspected faulty) and C1 - 0.1uF safety film cap(low capacitance) replaced.
U1 - LNK364PN shorted between drain and source so replaced which was probably the cause of the resistor burning out.

Still no power/signs of life!

Decided to replace other caps and diodes anyway but still No life!
So D1,9,11,12,13,14 1N4007 replaced with UF4007's.
Cap's C3,4,11,13,18,14 and 24 replaced.

Not yet replaced D7 or D8 as not found suitable replacements - BYV26C.

240V getting to the board and 78M05 giving 5v output from 14v produced by the LNK364PN.

Suspect faulty Atmega16L but not sure where to go now!

Please help, thankyou.

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#2 от 31/12/2018 21:57

analogue of BYV26C. this is UF1007 or STTH110 achieve the operation of the power supply
here is datashit LNK364PN. https://www.power.com/sites/default/files/product-docs/lnk362-364.pdf get the power supply running and check the secondary circuits

#3 от 01/01/2019 02:12

mileshca писал:

analogue of BYV26C. this is UF1007 or STTH110 achieve the operation of the power supply
here is datashit LNK364PN. https://www.power.com/sites/default/files/product-docs/lnk362-364.pdf get the power supply running and check the secondary circuits

Thanks, LNK364PN does produce 14v dc for 5v reg which outputs 5v so that part appears to be working.

I believe the xfrm sec will only be active when relay RL3 is activated which will be when a programme is running as it will also start the drum motor on RL2 i.e after the programme dial is set and the start button is pressed.

So the problem lies before the xfrm is made active unless I am missing something.

#4 от 01/01/2019 02:56

yardie, http://monitor.espec.ws/users/687225.html order of all field

ДОБАВЛЕНО 01/01/2019 04:02

b]yardie[/b], What reptile has forced you to work in holiday new year?

#5 от 01/01/2019 23:18

Good lady of the house, she work me like a horse!

#6 от 02/01/2019 10:38

это что форум уже не русскии !?

#7 от 04/01/2019 10:21

тю писал:

это что форум уже не русскии !?

а что не шаришь по буржуйски ?? смех

Руссковопрошающего сразу же загнобили бы. Masters of to inspire not tried? Не так ли?
А тут проявили терпимость, так сказать русское гостеприимство. классно!

#8 от 04/01/2019 10:40

Jampers, а при чём здесь "русское гостеприимство"? Правилами не запрещено, хоть на китайском. Хотя я где то вроде читал, может не на этом форуме, что разрешено по русски и по английски. Так что в любом случае всё по феншую.

#9 от 04/01/2019 11:09

9. Писать сообщения разрешается только на русском или английском языках. В первом случае в качестве набора знаков должна использоваться кириллица, во втором - латиница.

Beko DCU7230B no power

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