QHYCCD

163M Short At Power Connector

163M Short At Power Connector
« on: January 26, 2021, 01:52:21 PM »
A friend of mine has a QHY163M which just started tripping the power supply.  When measured with an ohm meter it shows a short circuit at the connector to the camera.  The camera will function on USB but naturally no cooling.  Is there a circuit diagram for the TEC available so this unit will not have to be sent overseas? He is in Virginia and we are both adept with soldering and reading schematics.

Yuki

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Re: 163M Short At Power Connector
« Reply #1 on: January 26, 2021, 09:06:50 PM »
Hi,

I think the diode is damaged, you can open the back cover and replace the SMBJ12. It is on the cooling board.

Best Regards


Re: 163M Short At Power Connector
« Reply #2 on: January 27, 2021, 10:47:52 AM »
Hi,

I think the diode is damaged, you can open the back cover and replace the SMBJ12. It is on the cooling board.

Best Regards

Hi Yuki,

Thanks for the recommendation.  This one has silver print with possibly LE which according to the data sheet is a "unidirection" version diode.

Yuki

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Re: 163M Short At Power Connector
« Reply #3 on: January 27, 2021, 08:00:28 PM »
Hi,

Yes,

Pay attention to the direction when welding.


Re: 163M Short At Power Connector
« Reply #4 on: January 29, 2021, 07:57:29 AM »
Hi Yuki,

Thanks for the photo.  Also does QHY offer the purchase of a service manual for some of their cameras? 

Thanks,
Bill

Yuki

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Re: 163M Short At Power Connector
« Reply #5 on: January 31, 2021, 08:14:17 PM »
Hi,

For some simple problems, we  have a service manual.

And customers can buy USB boards or Cooling boards from us.

Best Regards


Re: 163M Short At Power Connector
« Reply #6 on: February 09, 2021, 10:37:42 AM »
SMBJ12 diode now replaced, all is well.

Thanks Yuki!