• GPS-Enabled Scopes Display a Date 20 Years in the Past after GPS Link - 26 Apr 19
• NexStar+ Hand Control - 19 Feb 12
• Hand Control Compatibility - 25 Feb 12
• Basic Information about the CPC Series - 5 Feb 05
• Accessories for Your Scope - 15 Jan 19
• How to Upgrade Hand Control Firmware - 14 Jan 06
• How to Upgrade Motor Control Firmware - 2 Feb 08
• Celestron's Online Spare Parts Store - 4 Sep 10
• Backlash and How to Set Anti-backlash Compensation - 7 Apr 03
• Power Sources for Your Celestron Scope - 10 Jul 18
• No Response Errors - 11 Aug 18
• Questions about RS-232 Control and Upgrades via PC - 5 Jun 02
• Firmware Versions on the CPC Series
• Common Problems with PC to Scope Communications - 13 Jun 03

• Replacing the LCD Panel in a NexStar Hand Control - an article by Robert Googe - specifically for the NexStar GT hand control but the discussion might help you revive other versions of NexStar hand controls - 17 Mar 23
• Mounting Other OTAs on NexStar Mounts - 29 Jul 20
• StarGPS-NX GPS Receiver for Celestron Scopes - 18 Mar 19
• Reset to Factory or Default Settings on NexStar v4, NexStar+ or StarSense Hand Controls - 9 Mar 18
• Reset Language on NexStar, NexStar+ or StarSense Hand Control - 9 Mar 18
• Internal Communications of Celestron Computerized Telescope Mounts - 1 Mar 19
• Celestron Focus Motor for SCT and EdgeHD Optical Tubes - 22 Jan 19
• Problems Obtaining GPS Link - 8 Jan 19
• Replacing the Battery on the GPS Board - 2 Jun 20
• Boot Loader Invalid Pkg Errors on NexStar+ or StarSense Hand Control - 24 Jan 17
• SkyScout Connect - Interfacing Your Scope with Celestron's SkyScout - 30 Nov 08
• Disassembly of the CPC Azimuth Assembly and Replacement of the Stock Nylon Bearings - An excellent article contributed by Gary Bennett - 29 Jun 08
• NexStar Alignment Stars - 2 Dec 07
• Cancel a GoTo in Progress - 18 Jun 07
• Focusing the CPC Finderscope - 5 Oct 06
• Skyan - Basic Wireless Control of Your Telescope and Motorized Focuser - 7 Jul 06
• NexStar Hand Control Version 4 User's Guide - Updated Regularly
• Celestron Utility for Improved PEC Recordings - PECTool - 25 May 05
• SCT Corrector Plate Removal - 15 Apr 05
• Fastar Secondary Turns When Tightening the Retaining Ring - 15 Apr 05
• Hand Control Version 4 for NexStar GPS, CPC, SLT, GT and 'i' Series - 26 Feb 05
• Ports and Connectors on CPC Scopes - 5 Feb 05
• Some Settings Are Not Reset by Factory Settings Command - 24 Sep 04
• Doug Robertson's Light Pollution Blocker for CPC Scopes - 22 Sep 04
• Cleaning Optics - Part 1 - Glass Surfaces - 22 Mar 04
• Cleaning Optics - Part 2 - Mirrors - 27 Mar 04
• Collimating Schmidt-Cassegrain Telescopes - 15 Jan 04
• Extending the Hand Control Cable - 23 Dec 03
• Get a Full 2" Aperture for Your 11" SCT - 11 Dec 03
• Pin Connections in Auto Guide Port - 24 Nov 03
• Select Alignment Stars - A Program to Aid in Alignment - 8 Sep 03
• Manual Hand Control for the Auto Guide Port - 31 Jul 03
• Incorrect Date/Time Displayed on GPS Models During Quick Align/Auto Align - 5 Apr 03
• Jim Towers' Excellent Battery Tutorial and Guide - 7 Jun 02
• Correct Installation of the Finderscope - 26 May 02
• How to Fix Incorrect Local Time on Hand Control - 22 May 02
• Possible Fixes for Hand Control Misbehavior - 11 May 02
• Ease Collimation of the SCT NexStars with Bob's Knobs - 11 Jan 02
• Warming the Hand Control to Prevent Sluggish LCD - 17 Dec 01
• Accurate Centering of Alignment Stars - 22 Aug 01
• Replacing the Power Connector on Your Power Source - 20 Dec 00

Other sources for CPC information are
the Cloudy Nights Celestron Forum:
www.cloudynights.com