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
Linux Based Receivers
Dreambox Support Forum
Dreambox Satellite Receiver | Tutorials | Software
Dreambox 500
DM500s 22khz tone circuit board fix
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="mickeydebo" data-source="post: 555495" data-attributes="member: 301984"><p>Hi Thanks for all your help on this problem, its a good challenge for me.</p><p>Im not sure if i have the skills to overcome this problem but ill give it a go.</p><p>I have managed to check the voltage of the transistor Q71 and found that there is O volts reading from two of the three legs </p><p>Im not shure wich is the base,emitter and collector so will explain them from looking a the top wth the tuner above.</p><p>Tested all legs with the negative attched to the chasis.</p><p>I also made sure I was on a channel that uses high band (sky news)</p><p>Top left leg O Volts</p><p>Top Right leg 0 Volts</p><p>Bottom leg 13.08 Volts or 18.08 volts dependng on polarity.</p><p>I have checked this with another dreambox 500s and the readings were as follows </p><p>@ 14.26 Volts</p><p>Top left leg 0.54 Volts</p><p>Top Right leg 0.91 Volts</p><p>Bottom Leg 8.86 Volts</p><p>@ 18.08 Volts</p><p>Top left leg 0.59 Volts</p><p>Top Right leg 0.94 Volts</p><p>Bottom Leg 12.14 Volts</p><p>Am i going to put it in the bin or is there another problem from another transistor?</p></blockquote><p></p>
[QUOTE="mickeydebo, post: 555495, member: 301984"] Hi Thanks for all your help on this problem, its a good challenge for me. Im not sure if i have the skills to overcome this problem but ill give it a go. I have managed to check the voltage of the transistor Q71 and found that there is O volts reading from two of the three legs Im not shure wich is the base,emitter and collector so will explain them from looking a the top wth the tuner above. Tested all legs with the negative attched to the chasis. I also made sure I was on a channel that uses high band (sky news) Top left leg O Volts Top Right leg 0 Volts Bottom leg 13.08 Volts or 18.08 volts dependng on polarity. I have checked this with another dreambox 500s and the readings were as follows @ 14.26 Volts Top left leg 0.54 Volts Top Right leg 0.91 Volts Bottom Leg 8.86 Volts @ 18.08 Volts Top left leg 0.59 Volts Top Right leg 0.94 Volts Bottom Leg 12.14 Volts Am i going to put it in the bin or is there another problem from another transistor? [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Linux Based Receivers
Dreambox Support Forum
Dreambox Satellite Receiver | Tutorials | Software
Dreambox 500
DM500s 22khz tone circuit board fix
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