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1005楼
发表于 2011-12-27 23:18
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How To Repair The Digital Satellite Receiver Destr
using the electronic equipments in lightning weather is not a good choice. however, there are still some people kept using the digital satellite signal receiver in lightning weather and the machine is unfortunately destroyed. maybe you think that the machine is totally over, but can save it by testing the system board. here are four examples of mending the broken satellite receivers.
1.#ids 2000f. the ids 2000f wont give out audio and video signal after it is shot by thunderbolt. when we open the box of ids 2000f, we will find unit f1 is black finished and blew out and the power management chip tea1523 (u1) is also broken. if we exam the system board again, we will find the d2 commutation diode in bridge rectifier is punctured and the photocoupler pc817 (u2) is also broken. now you can restore ips 2000f by changing the destroyed units.
2.#ws 9618. if ws 9618 is shot by lightning rod, the machine will also not be able to output audio and video stream. first we will find the fefea (1a) unit is black finished and the voltage dependent resistor r1 (7n431k) in overvoltage protection circuit has also been punctured. the rectifying tube d3 (in4007) and capacitance c1 (104/630v) is short. if we only change these units,pandora charms discount prices, the machine will not be able to work now. go on exam, we will find the capacitance c5 (47f/400v), negative temperature coefficient thermistance r2 (ntc10d-9) and power management chip u1 (im0380r) are all destroyed. changed all these units, the machine will work well again.
3.#glomax 5066. the result of the machine here will not be introduced again. when we open the box, we will find the f1 unit is black finished and power management chip p1014ap10 (uy1) is broken down. replace them and try again, we will find the machine is still not being able to work. the both side of the capacitance cy1 in bridge rectifier has a voltage of 300v, so the power circuit is ok. go on exam and we will find the photocoupler pc817b (uy2) and yw431 (uy3) is broken. the machine will be able to work if the broken units are replaced.
4.#tdr 6000s. if tdr 6000s is broken under such a situation and when we open the box, we will find the system borad connected to the ic101 (5l0380r) is black finished. the d101 and d103 (in4007) in bridge rectifier and photocoupler ic102 (pc817) are all broken. replace them to restore the machine |
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