1. 1 J.L. QC Pro4000 Long Exposure modification

2. 2 J.L. Cutting PCB

3. 3 J.L. Lift the IC pin #4

4. 4 J.L. Soldering wire x4 CB D A

5. 5 J.L. Sony CXD1267AN CCD Vert. Clock Driver Philips SAA8116HL CCD VGA USB Camera 10K shutter v gate pin #4 pin #9 pin #2 pin #5 pin #21 DB25(M) Parallel port connector +5v GND 2 1 4 3 13 12 5 7 14 6 9 10 11 8 CD4066 +5v 4 5 USB connector GND A C B D QC pro4000 modification circuit diagram

6. 6 J.L. Surface mount CMOS IC CD4066 1/8 W, 10K Resistor x4 CD4066 Quad Bipolar Switch IC To 1267 #9 To 8116 v gate To control port #5 To 8116 shutter To 1267 #4 To control port #2 To control port #21 C A D B

7. 7 J.L.

8. 8 J.L. Soldering control wire

9. 9 J.L. Cutting PCB for disable LED

10. 10 J.L. Finish

11. 11 J.L. Long exposure dark frame testing

12. 12 J.L. 15sec dark frame

13. 13 J.L. 30sec dark frame

14. 14 J.L. 60sec dark frame

15. 15 J.L. 60sec x5 dark frame

16. 16 J.L. Making Adapter

17. 17 J.L. Many thanks Studioalley for help.

18. 18 J.L. Finish

19. 19 J.L.

20. 20 J.L.

21. 21 J.L. Connect to telescope

22. 22 J.L. normal photo

23. 23 J.L. long exposure photo