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
Analogue systems
Echostar sr8700 power supply schematic
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="jeallen01" data-source="post: 1088295" data-attributes="member: 176704"><p>[USER=415123]@harm lok[/USER]</p><p>With ref to the schematics supplied by Trust1: Most of the linked threads mentions capacitor failure, but if the unit is <em>totally </em>dead then also take a look at the RT1 NTC (Negative Temperature Coefficient) surge suppression resistor in series with one of the incoming supply conductors. I have come across reports of a number of examples (notably, it seems, with certain models of KEF sub-woofers!) where the NTC resistor has gone open-circuit bcause slightly too low a value &/or wattage was chosen and so they overheat and fail after a period of use.</p></blockquote><p></p>
[QUOTE="jeallen01, post: 1088295, member: 176704"] [USER=415123]@harm lok[/USER] With ref to the schematics supplied by Trust1: Most of the linked threads mentions capacitor failure, but if the unit is [I]totally [/I]dead then also take a look at the RT1 NTC (Negative Temperature Coefficient) surge suppression resistor in series with one of the incoming supply conductors. I have come across reports of a number of examples (notably, it seems, with certain models of KEF sub-woofers!) where the NTC resistor has gone open-circuit bcause slightly too low a value &/or wattage was chosen and so they overheat and fail after a period of use. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Satellite TV receivers & systems support forums
Analogue systems
Echostar sr8700 power supply schematic
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