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Chat Discussion, Dm500s Problem With H Transponders at DreamBox forum; Hi all, I'm very new to dreambox but bought a dm500s and am having problems with H transponders. With my ...

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Dm500s Problem With H Transponders
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tgalea
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Dm500s Problem With H Transponders - 18-February-2008, 13:28

Hi all,

I'm very new to dreambox but bought a dm500s and am having problems with H transponders. With my satellite dish and lnb installed by a professional i get 96% signal on all V transponders but about 64% on H transponders.

It is however strange that if i skew the lnb 90 degrees i get full signal on the H and of course lose signal on the V. is this a damaged box or something like this ?

Now i bought a dm600 pvr and with the dish and lnb set up properly i recieve good signal on both type of tranponders.

i've heard it could be a problem with the image. I tried both the original firmware and also the latest gemini. Same problem with both.

your comments would be appreciated.

Regards
Tyrone Galea
   
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dreamboy
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18-February-2008, 15:08

have you change your lnb? try changing the lnb first, sometime the tuner are so sensitve

   
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uffala
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18-February-2008, 15:53

Or it may be either the PSU ar the tuner faulty.
   
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tgalea
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20-February-2008, 12:08

yes i did change lnb and same problem. now i just got a dm600pvr and it works great. was just wondering if there was a way to fix this box rather than throw it away.
   
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20-February-2008, 12:30

faulty tuner which needs to be changed I have a box like that also
   
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21-February-2008, 11:14

thanks for your feedback. will try see if i can get it repaired then. cheers.
   
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21-February-2008, 11:21

yes it can be repaired atleast one guy in holland does it check your pm
   
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signal faults
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signal faults - 24-February-2008, 13:21

P-Channel Logic Level Enhancement Mode Field Effect Transistor
which can be used as a replacement of a burned transistor in DM 500S.
If your DM 500S is unable to tune channels, with 90 % probability the
transistor is burned, causes no LNB power on coax input and
has to be replaced. You can see the component on the picture below,
identified Q72 on the board.

try replacing this part only cheap


DM800s DM500sx2 DM500c
1mtr Dish 20meg BB
   
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