EuropAce EWC 913 Wine Cooler power board fuse blow /shorted

[lotas]

Re: EuropAce EWC 913 Wine Cooler power board fuse blow /shorted

Just found this forum and registered, and hoping members here can help me.

A family friend just gave me their Wine Cooler to repair, and this thread has already greatly helped in identifying the VIPer 22A on the power board as faulty, so I have a replacement on order.

However, the hanny10-12C power board had already been removed, so don't now have a record of where each of the wires go. I'm assuming that the red and black plugs go in their respective coloured sockets, but there are two two-pin white plugs, which could go into two different sockets, and then the Brown, Red and Blue cables on spade connectors.

I would be very grateful if anyone has a photo or a description of what wire goes where.

With thanks

S.

This video will help you figure it out.

https://www.youtube.com/watch?v=7zxgGCip8ms

[SergeAuckland]

Re: EuropAce EWC 913 Wine Cooler power board fuse blow /shorted

Thanks Lotas,
Unfortunately, the video shows a different board. The picture you posted is the right board, but the white two-pin connectors are the ones I'm not sure of. There are two sizes, and two sockets for each size.

The Display board has the larger 6 pin connector, and one small two-pin connector with just a single green wire. I'm assuming that connects with NTC1, as that has one pin that goes to earth. It could equally connect with CN1, but as that's labelled as a fan connector, I don't think that would connect with the display board.

The other larger 2 pin connector, which comes from the body of the cooler, could go in either the connector labelled LED, or the one labelled OUT. I don't see any way of telling which as I don't know what this does.

Any further help would be really appreciated.

S.

[lotas]

Re: EuropAce EWC 913 Wine Cooler power board fuse blow /shorted

NTC1 is a thermal sensor.
In the video, you can see the colors of the wires going to the connectors.

[SergeAuckland]

Re: EuropAce EWC 913 Wine Cooler power board fuse blow /shorted

Thanks, but which of the wires with the three two pin connectors goes where?
1) I have one connector with a single green wire coming from the display PCB.
2) I have one connector with a black wire and a white wire.
3) I have one connector with two black wires.

On the board:-
I have one socket marked CN1, which you kindly identified as being for the fan.
I have one socket marked NTC1
I have one socket marked LED
I have one socket marked OUT.

Four labelled sockets, three wired connectors without identification. That's my confusion.

Best regards

S.

[lotas]

Re: EuropAce EWC 913 Wine Cooler power board fuse blow /shorted

Green is more likely on NTC1. Black is white next to it.

[SergeAuckland]

Re: EuropAce EWC 913 Wine Cooler power board fuse blow /shorted

Fortunately, the person who removed the board took the precaution of photographing the connections before removing them.

Hopefully, when the parts arrive, I should be able to repair the board.

Thanks to Lotas for their help.


S

[SergeAuckland]

Re: EuropAce EWC 913 Wine Cooler power board fuse blow /shorted

I thought it was too easy!
I've replaced the VIper22A switch-mode chip, and C1 (33uF@400V) and C2 (47uF@25v) and put it all back together. Although the fuse F1 doesn't blow any more, and F2 is intact, the cooler doesn't start up and there's nothing on the display.

Any ideas as to what I can check next?

Thanks
S.

[lotas]

Re: EuropAce EWC 913 Wine Cooler power board fuse blow /shorted

Is there voltage across this capacitor?

[SergeAuckland]

Re: EuropAce EWC 913 Wine Cooler power board fuse blow /shorted

No, nothing there.

C1 (33uF 400v) has 325v across it, so volts are getting that far.

S

[lotas]

Re: EuropAce EWC 913 Wine Cooler power board fuse blow /shorted

If the VIPer22A burned out, then these component diodes could burn out, their resistors must be checked with a multimeter.

[lotas]

Re: EuropAce EWC 913 Wine Cooler power board fuse blow /shorted

And the VIPer22A could also carry the optocoupler with it.

[SergeAuckland]

Re: EuropAce EWC 913 Wine Cooler power board fuse blow /shorted

Thanks, will do, and report back.

S.

[SergeAuckland]

Re: EuropAce EWC 913 Wine Cooler power board fuse blow /shorted

If the VIPer22A burned out, then these component diodes could burn out, their resistors must be checked with a multimeter.

Can you check what value R35 should be? Mine reads brown black brown, which should be 100 ohms at 5%, but it measures 193 ohms. Before I change it, I would like to be sure that the colours haven't faded and that yours is 100 ohms.

Diode D1 is short, D2 measures OK, but I'll change it anyway. Other resistors measure OK.

I'll change the optocoupler as I can't be sure what I'm measuring and the cost is trivial.

Best regards

S.

[lotas]

Re: EuropAce EWC 913 Wine Cooler power board fuse blow /shorted

I do not have such a board, all the photos that I posted from the Internet, so all measurements and replacement of components are up to you, if the color rings should be 100 Om, then change to 100 Om.

[SergeAuckland]

Re: EuropAce EWC 913 Wine Cooler power board fuse blow /shorted

It works! Had to replace the Viper22A chip, two capacitors, two diodes, one resistor and the optoisolator, but now it runs. The temperature display is faulty, it displays rubbish, so I assume that whatever damaged the power board also damaged the display driver, but that's more of an inconvenience than a serious fault.

Thanks for your help in finding my way through an unfamiliar board.

S.

[sam_sam_sam]

Re: EuropAce EWC 913 Wine Cooler power board fuse blow /shorted

You could put a digital external temperature sensor controller and just use it for a display and from EBay you can find them and they are not very expensive

[samsaudio]

Hi,
I am a occasional hobbyist home electronic / electrical goods repairer without formal training in electronics/electricity. I learned from here and Youtube mostly.
I was given a EuropAce wine cooler model EWC 913, with no power supply - totally dead.
I opened up everything, and zoom into the power supply board (see attached pics), the board part# is Hanny10-12b, PCB110729M1, Rev0.
There are 2 fuses, 1 is OK, 1 was burnt. I disconnected all the input and output cables, put the power board stand-alone on a table, and replaced the burnt fuse. I burnt immediately upon power-on.
After reading some discussions in this forum, I followed 1 of the suggestions:
- I wired 2x40w incandescent bulbs in series with the live wire going to the board, temporary soldered a thin wire across the blown fuse.
- When power on, both the incandescent bulbs lights up and stayed lighted up until I power off. Based on what I read, this is a clear indication of a short-circuit somewhere.
I do not know how to read / trace circuit board, so I practically did a process of eliminations by removing all the capacitors and diodes to test using a DMM, and when the tests appeared good, I soldered them back. I repeated this process with all the transistors. As for resistors I only tested then in circuit. I even removed the 2 big blue and black rectangle parts (presumably relays). But doing all this has no effects at all on the 2 bulbs - they always lighted when I power on. The last I tried was removing the transformer - then the 2 bulbs di not light up!
While doing all these removing/restoring, I only occasionally checked the incoming voltage at the 2 input terminal - it's quite consistently at around 5V. I did not take any reading beyond this.

Please kindly help with my journey to debug and find the short circuit.
Thank you very much.

HI Do you know the value and voltage of C3 and C4 on this PCB ?

thank you
Sam

[samsaudio]

Hanny10-12C, PCB110729M1, Rev0.

does anyone know the value and voltage of C3 and C4 on the this pcb it is blown up bady and can not read any value of this two caps

thank you
Sam

[redwire]

Hanny 10-12B,C,K etc. I have:
C1 - 33µF 400V primary
C2 - 47µF 50V for VIPER22A power
C6 - 1,000µF 16V? VZ for 12V rail (high stress would use a polymer cap there)

C3 green film cap is typically VIPER22a pin 3 47nF or 100nF at 50V or better.
C4 some small disk cap not sure where it goes
C12 is snubber cap