QHY8 old drivers help

[kinetic (Steve)]

Hi all,


desperate to get my old trusty QHY8 working after a small hiatus!


It worked for years on an old Win8/Win 7 emulator laptop, capturing to
EZCAP.


Now it doesn't show an image on preview or 'live' after download.
Connects, is visible in camera list in EZCAP, captures, just no resulting image
after the download.


I have tried re-installing the drivers and trying a newer version of EZCAP, even on a Win 10 laptop, same problem, no image.


Maybe a cabling problem?
The 4 pin DIN jacks seem to be seated ok and the DC101 power supply is
working ok too.



thanks in advance for any advice,


Steve

[sunslayr (David)]

Is it getting enough power? Mine did the same on a 3A power supply, had to move up to a much beefer one. They seem to get thirstier the older they get.

[Stefan Buda]

Mine doesn't work with the newer version of EZCAP, but it works well with an old version. Also it crashes if I use exposures of only a few seconds.

[RobF (Rob)]

Might be worth trying native QHY drivers in NINA? First check it has them for QHY8 - works fine with my 9 but no experience myself with an 8

[kinetic (Steve)]

Thank you David, Stefan and Rob,


Rob I gave NINA a go and it wouldn't see the QHY8.

Stefan, I have used EZCAP 3.3 and newer, same problem, no image after
download.

David, I have checked the DC101 and all cabling. 12v DC getting to the
QHY8 and TEC is working.

4 pin DIN plugs seem to be seated ok too.

I am at a total loss.

Does anyone have a (working) link to any native drivers?

I have tried contacting Theo (Gama) as well , as he has drivers for
the QHY8 on his site but the zip file is password protected.


Steve

[Stefan Buda]

Steve, mine works well with V2.41 and does not with V3.36

[muletopia (Chris)]

Steve
I went from Win7 to win 10 recently and in the process learned that QHY had released
new drivers for my QHY8L. The old driver does not work on Win10, the new driver sets the camera as an ASCOM device, and it handles the camera much more reliably.


I suppose that you have installed the ASCOM version of the driver but if not give it a go,


Chris

[peter_4059 (Peter)]

Anything here useful?

https://www.qhyccd.com/download/

[muletopia (Chris)]

Steve
Peter's link has the ASCOM drivers under "Classic Drivers"
Chris

[sunslayr (David)]

These are the drivers I used with my QHY8 Classic on 64bit Windows 10(the square one with external power not the newer round QHY8L/Pro), EZCAP 336, Ascom Driver, Windows driver. As of writing none were compatible with N.I.N.A due to being 32 bit drivers even with 32 bit N.I.N.A. However the ASCOM drivers do work with Sequence Generator Pro and Sharpcap and the native windows drivers work with EZCAP. As for trouble shooting the DC-101 you can open the case and probe the pins of the power and DIN connector. Confirm that when plugged in the camera is recieving +15V and -15V on the Din connector and the power jack is not below ~11.9V.

[kinetic (Steve)]

Hi all,


fixed it! David nailed it, thank you David!


DIN cable was the culprit after all!

I opened up the DC101 supply case while all connected and
measured 15V and -18V going out , via the DIN jack.

But only getting 15v on one set of the 4 pins, the -18v was missing at the field end of the cable.

A quick continuity check end to end of the DIN cable revealed broken wires
in the socket at one end. The end that flexes the most while in use!

The reason why the other rail had gone up to -18v and not -15 is, I am assuming it wasn't under load.
Measured it once a quick re-solder was done....15v and -15v rails!

FWIW guys, the native driver set kindly linked by David work now.
EZCAP 3.36 working fine now on a Win 10 64bit OS.


Steve

[sunslayr (David)]

Excellent

[kinetic (Steve)]

Thanks so much all who helped.
So happy to have this old unit work again!

Steve

[peter_4059 (Peter)]

Good to see scooter still going strong too.

[kinetic (Steve)]

Thanks Peter!