Light on telescope on powerup but nothing from autostar.
I have replaced controllers and cables. I took bottom of telescope off and found wires disconnected. I hooked those back up put it back together but to no avail.I purchased a new power cord, I checked the cable contacts.I was wondering if there was an internal fuse?
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The hand controller cable is probably defective-- right at the connector that plugs into the scope. Any computer network "wizard" can replace the connector. The wires must be in the exact same sequence when he repairs it.
If this simple fix does not work and you KNOW that the batteries are good-- then the hand controller is defective and will need to be replaced.
I assume the small red light on the power panel is ON. ???
If it is the scope is receiving power--- check to make sure the cable from the hand controller is plugged in properly-- jiggle the cable to see if you have a loose BAD cable. Before you panic --- try another cable or reverse the ends ---
Before you buy another hand controller try a new cable-- scopestuff.com sells a nice long flexible one for the 497 hand controller.
Your reseller is correct. The wire (Meade cable #505) goes from an RS232 serial port on PC to a 4pin RJ plug. This plugs into the 2nd socket on the bottom of an Autostar 497 handset, the other socket being used for the curly lead to the telescope. So it goes PC to Autostar to telescope.
A common error is to try plugging the serial wire into an "AUX" ort on the telescope control panel - same connector. Not only does this not work, it can cause a lot of damage.
Wired like this you can control the scope from Meade's Autostar Suite (or many other planetarium softwares). You can also update the Autostar software to the latest 2009 version.
What else can go wrong? Well, many people want to control from a laptop, and modern ones don't have RS232 serial ports. Then you need a USB-to-serial convertor dongle, which effectively add a serial port to a laptop. But they often give it a very high port number (eg COM17) that the planetarium software does not find. Use Control Panel to reset the USB-serial-port to COM 1, 2, 3 or 4 and all should be well. But it can be a right fiddle!
I ended up replacing the Hand Controller with a new one. After that it started working. I brought the new one on E-bay. They seem to have the best prices. Forget about talking to Meade. Their innate ability to reply to your phone calls or emails just doesn't work. I will ***** buy a telescope from them again.