A dead satellite receiver restored back to life. VisionNet VN3106
Three of these dead satellite receivers were brought to my shop for repair. The guy who brought them, a friend of mine, said something about electricity problem happened in their building which is a fitness center.
These devices were connected to the running treadmills in that center. The main purpose of these receivers is to entertain people by watching movies or hearing songs while doing their exercise.
Since he brought three of them, and all of them, same brand name and all looked the same on the inside, I decided to repair one of them and once I know what is wrong I can continue to repair the others. Let the repair begins.
I took the power board out and the fuse was blown. This is an indication of a serious problem with this power board. So my focus was set on the rectification section of this board. Two of the diodes were shorted, the main power IC was shorted.
It is a very good idea, when you find only two diodes in the rectification section blown, is to replace the four diodes. Once I replaced these four diodes, I set my focus on the actual power IC that was shorted as well. The part number is 5M0365R.
This one looked pretty decent on the outside. The other IC’s that I checked in the other satellite receivers were actually blown to pieces. I was so glad to see an intact one so I can get the part number off and replace them with working ones. The IC’s were not easy to find but I managed to get them off the internet.
All three receivers had exactly the same problem and all of them were fixed. The guy came and got them all and was a happy customer. Mission Accomplished.
This article was prepared for you by Waleed Rishmawi, one of our ‘Master Authors’ and currently working in the Bethlehem area of Palestine repairing electrical and electronic equipment.
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Note: You may check out previous post about fixing active speaker in the below link:
https://jestineyong.com/lcd-screen-with-white-display-repaired-model-e-machines/
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Robert Calk
July 25, 2017 at 9:15 pm
Good job, Waleed. Nice to see you back after a long time! I hope you are doing well my friend.
Waleed Rishmawi
July 26, 2017 at 3:59 pm
thanks man. Good to be back. all is well my friend.
Albert van Bemmelen
July 25, 2017 at 10:03 pm
Interesting new repair Waleed! Because the 5M0365 PWM chip not only handles voltages up to 650V at 3A DC. But also comes in 2 flavors, in a 8 DIP housing and the TO 220F-4L you showed. And the TO220 version is with about 6.50 US dollar, and only 1.90 US dollar in 8 Dip housing very affordable! So it can be very valuable as a universal replacement PWM power chip in other defect entertainment devices too!
Waleed Rishmawi
July 26, 2017 at 4:02 pm
these kind of ic's are very hard to find in my country. now they are establishing in my home town something called an Electronic junk yard where you can go and take parts of not working electronic equipment. that comes very handy for us repair technicians. thanks for your comments.
Henrique Jorge Guimarães Ulbrich
July 27, 2017 at 4:39 am
Very good idea, this electronic junk yard. Such an idea would be implemented everywere.
Angelo
July 25, 2017 at 10:05 pm
Sir
Great job
hats off to you...
Thanx
Waleed Rishmawi
July 26, 2017 at 4:03 pm
Thanks Angelo. I appreciate the encouragement.
Yogesh Panchal
July 26, 2017 at 1:17 am
Glad to see you back Waleed,
Thanks for sharing the article.
Waleed Rishmawi
July 26, 2017 at 4:04 pm
thanks. good to be back Yogesh. you are most welcome.
James
July 26, 2017 at 3:43 am
Is it just me, or does your part number "NOT" match the part number of the IC displayed in your picture? (Picture says.. "5MO365R" and your typed number says... "5M03106") Is that a typo or am I hallucinating ? 🙂
Jestine Yong
July 26, 2017 at 1:12 pm
Hi James,
Thanks for pointing it out and already amended.
Jestine
Waleed Rishmawi
July 26, 2017 at 4:09 pm
thanks Jestine for amending the problem.
Jestine Yong
July 26, 2017 at 9:50 pm
Hi Waleed,
You are welcome.
Jestine
Waleed Rishmawi
July 26, 2017 at 4:08 pm
yes, you are right. I went back to my original article and it seems like I did a mistake. thanks for commenting about it.
Parasuraman S
July 27, 2017 at 9:14 pm
Welcome back with a bang! A good informative article. Well done!
parashu ram singh
August 2, 2017 at 2:05 pm
i am very thanks for your team and specially you for giving me
wonderful information updation regarding lot of tech issue can be
involve to solve the problems step by step and and read your given
documents tech for future.
in this connection my attention towards LED vs LCD the solution
is in india complete or not if any useful link you have to to give
me i would like to thanks for this act in life and i turned my carrier
in this filed upcomming days.