Satellite Receiver Golfeesat M 700 Repair
An old man walked into my shop and asked me if I can repair his satellite receiver. It is a very cheap receiver and the man said that it does not power up.
It was a Chinese made receiver and to be honest, I hesitated to repair it for him because it was not worth the repair. I tested the external power supply, it checked fine. It operates on 12 volts DC.
I powered up the device and the display did not come on. Two screws in the back were off and I could see inside the receiver.
It was looking good on this side. No bulged capacitor no burnt marks. I checked the fuse and it was fine. I looked on the other side of the board and it was fine. Nothing was wrong there.
I powered and I checked the voltages going to the main capacitor and it was ok except the voltage was not steady. I re soldered the power jack on the machine and the power became steady but the device was not coming on.
I decided to give it a shot and just re soldering all the joints on the back of the board and see what happens. Most of the joints looked good but while at it, I re soldered even the good joints. To my surprise:
It powered on. I worked on it for ten minutes and re soldering made the difference. I called the customer and told him the good news. The look on his face made my day. 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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Jestine Yong works as an Electronics Repair Lecturer in Kuala Lumpur Malaysia and his training website is http://www.NoahtechElectronicsTraining.com. You can check out his repair blog at http://www.JestineYong.com
9 comments on “Satellite Receiver Golfeesat M 700 Repair”
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Thanks for the nice article. Repairing the “Not Powering up” cases are the most rewarding repairs in my humble opinion. Although the bad solder in this cheap China made device caused the failure it per definition did not make it a bad reciever! Taking in account the short amount of time it took to fix it is good advertising for the golfeesat-M700!
I agree with the comments of Albert van Bemmelen! Bringing back a device to life and watching the glee of a satisfied customer, is an ever rewarding return for electronic technicians like us!
Why every one of you have a prejudice on cheap Chinese products? Don’t you all heard about the famous American saying:- You give peanuts and you get monkeys. Also the Chinese saying goes :- You get for what you pay .At least all cheap Chinese products worth more than the amount you pay and not to forget that cheap Chinese products are helping most people in the world enabling them to enjoy the comfort and luxury which they might not get without the Chinese CHEAP products. We all should be thankful for the CHEAP CHINESE PRODUCTS
Yep. I’ve also seen solder joints that look good looking at it, but when I touched it with my soldering iron the solder wicked to my iron and I could tell that the solder was just a thin layer that looked good but was not filling the space between the lead and solder pad. Good job Waleed!
Good job! Waleed
Hi Yogesh,
I have Bush 32 inch LCD TV with me. The problem with this tv is screen goes black after 8-10 seconds. Audio continues in background. It starts normally but gradually after 8-10 seconds it fades out completely.
(Is it t-con board or inverter board or something completely different?)
Any help from any experts appreciated.
Thanks in advance.
Jignesh.
If the backlight is still on when the picture goes out, then check the SMD fuse on the T-Con board. If the backlight also goes out when the picture goes out, then check the Inverter board power from the Power supply board. You can also try powering the Inverter board externally. If the power is ok to the Inverter board, then check the High Voltage ceramic caps on the Inverter board.
It’s useful article,I like it, Thank you.
Good job thanks mr. Waleed its helpful.