Log in
Register
Menu
Log in
Register
Home
What's new
Latest activity
Authors
Forums
New posts
Search forums
What's new
New posts
Latest activity
Members
Current visitors
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Echostar Gregorian dish positioner problem
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Llew" data-source="post: 55059" data-attributes="member: 175007"><p>Check the underside of the power supply for the following -</p><p></p><p>Burnt areas, especially around C12. Replace this anyway (4.7uF, 50V).</p><p></p><p>Check resistor adjacent to C12 (should be low value - around 12 ohms)</p><p></p><p>Make sure all soldered joints are well soldered.</p><p></p><p>C43 (motor drive decoupling) 100mF 400V should be OK, but I replaced it anyway.</p><p></p><p>You could check the diodes around the pulse feedback circuitry (near the motor terminals) with an ohmmeter (low ohms range - no reading one way, about 50 ohms other way).</p><p>Hope this helps. Other than this, you really need a digital 'scope to check pulse counts etc.</p><p></p><p>David</p></blockquote><p></p>
[QUOTE="Llew, post: 55059, member: 175007"] Check the underside of the power supply for the following - Burnt areas, especially around C12. Replace this anyway (4.7uF, 50V). Check resistor adjacent to C12 (should be low value - around 12 ohms) Make sure all soldered joints are well soldered. C43 (motor drive decoupling) 100mF 400V should be OK, but I replaced it anyway. You could check the diodes around the pulse feedback circuitry (near the motor terminals) with an ohmmeter (low ohms range - no reading one way, about 50 ohms other way). Hope this helps. Other than this, you really need a digital 'scope to check pulse counts etc. David [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Echostar Gregorian dish positioner problem
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more…
Top