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
Miscellaneous Sections
Tech Head - The Technology Section
The Work Bench and Soldering Station
Schematic For Echostar AD3000ip Power Supply
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: 479884" data-attributes="member: 175007"><p>Hi vlammie</p><p></p><p>Glad the supply is doing its job again.</p><p></p><p>Better to use an ESR meter on PS caps, as even when showing good capacitance its series resistance can be too high, losing its DC smoothing efficiency.</p><p></p><p>Yes, manufacturers sometimes use alternative transistors etc. when the original type becomes unavailable. Q5 is indeed a 2SA1273, my mis-type. Will correct the list.</p><p></p><p>Thanks for your suggestions on R17 and R3, true R3 could benefit a larger wattage, just that space constraints on the board limits size, although with mine, I extended the legs to raise it above the board.</p><p></p><p>C44 and C46 safety resistors have the same value and do the same job, but well spotted! but I'll leave the diagram as it is unless it becomes necessary to change anything there any time later.</p><p></p><p>Enjoy your revitalised Echostar!</p><p></p><p>Llew</p></blockquote><p></p>
[QUOTE="Llew, post: 479884, member: 175007"] Hi vlammie Glad the supply is doing its job again. Better to use an ESR meter on PS caps, as even when showing good capacitance its series resistance can be too high, losing its DC smoothing efficiency. Yes, manufacturers sometimes use alternative transistors etc. when the original type becomes unavailable. Q5 is indeed a 2SA1273, my mis-type. Will correct the list. Thanks for your suggestions on R17 and R3, true R3 could benefit a larger wattage, just that space constraints on the board limits size, although with mine, I extended the legs to raise it above the board. C44 and C46 safety resistors have the same value and do the same job, but well spotted! but I'll leave the diagram as it is unless it becomes necessary to change anything there any time later. Enjoy your revitalised Echostar! Llew [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Miscellaneous Sections
Tech Head - The Technology Section
The Work Bench and Soldering Station
Schematic For Echostar AD3000ip Power Supply
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