[vdr] Re: Rotor power: Was (Re: Re: cool down of dvb 1.3)

["Reinhard Walter Buchner" <rw.buchner@freenet.de>]

Hi Beppe,

>> Yes, These chips have two methods of protection:
>> - thermal overload: shutdown
>> - short circuit protection: instant shutdown

>I really hope it kicked in.

They aren't as fragile as the ARM-7 outputs ;o))

>Do you know a way to check if there is any LNB power?

Sure, just take your favorite DVB programm (like
VDR ;o)). Load the drivers and measure the LNB
plug at the rear of the DVB card (center pin is + shield
connector is minus). Depending on  what polarity (H/V)
you have, you should see something like 10.5-12.5V
or 15-19V. You don't need to have the motor or the
LNB connected.

>> but you can comfortably touch all parts, so they
>> *are* less than 50°C.

Courtesy of Helmut Auer I have a Rev 1.3 here. Geez
does that sucker get hot even w/o moving the dish. The
tuner design is totally ;((( The tuner gets way over 50°C.
(It has *nothing* to do with the LNB power, tho) After
some 30 minutes of watching TV you can't touch the
tuner chip any more. Rev 1.3? No thanks!

>> A DVB-S Rev 1.6. IMHO the only way to fly.

>is there a big different between rev 1.6 and 2.1
>LNB power supply unit?

No, there may be small variations in the LNBP chip
(either LNBP16 or LNBP20) but basically it is the same
Technotrend layout. I have never seen a Rev 2.2 so I don't
know if it also holds true for this Rev. However, Rev >1.6
no longer have the nice J2 ;o( jumper.

>Exampel for Move East
>:source.conf
>S0.5E   DiSEqC Drive East
>:diseqc.conf
>S0.5E  11700 V  9750 t W15 [E0 31 68 40] W15 t
>S0.5E  99999 V 10600 t W15 [E0 31 68 40] W15 T
>S0.5E  11700 H  9750 t W15 [E0 31 68 40] W15 t
>S0.5E  99999 H 10600 t W15 [E0 31 68 40] W15 T

Hmm, but you are only sending a "move" diseqc command.
Not a "move to"  command. Here is part of my diseqc.conf :

S13E 11700 V 9750 t v W15 [E0 31 6B 01] W1 [E0 31 6B 01] W1 [E0 31 6B 01]
W15 t
S13E 99999 V 10600 t v W15 [E0 31 6B 01] W1 [E0 31 6B 01] W1 [E0 31 6B 01]
W15 T
S13E 11700 H 9750 t V W15 [E0 31 6B 01] W1 [E0 31 6B 01] W1 [E0 31 6B 01]
W15 t
S13E 99999 H 10600 t V W15 [E0 31 6B 01] W1 [E0 31 6B 01] W1 [E0 31 6B 01]
W15 T

S19.2E 11700 V 9750 t v W15 [E0 31 6B 02] W1 [E0 31 6B 02] W1 [E0 31 6B 02]
W15 t
S19.2E 99999 V 10600 t v W15 [E0 31 6B 02] W1 [E0 31 6B 02] W1 [E0 31 6B 02]
W15 T
S19.2E 11700 H 9750 t V W15 [E0 31 6B 02] W1 [E0 31 6B 02] W1 [E0 31 6B 02]
W15 t
S19.2E 99999 H 10600 t V W15 [E0 31 6B 02] W1 [E0 31 6B 02] W1 [E0 31 6B 02]
W15 T

The above two are for moving the satellite dish to either Astra
or Hotbird. The "move to" command is 6B + EEprom "addresse"
in the motor.

S7E 11700 V 9750 t W15 [E0 31 6A 0E]
S7E 99999 V 10600 t W15 [E0 31 6A 0E]
S7E 11700 H 9750 t W15 [E0 31 6A 0E]
S7E 99999 H 10600 t W15 [E0 31 6A 0E]

I misuse this one for storing the satellite (6A + EEProm
adresse) Hispasat

S1W 11700 V 9750 t W15 [E0 31 69 02]
S1W 99999 V 10600 t W15 [E0 31 69 02]
S1W 11700 H 9750 t W15 [E0 31 69 02]
S1W 99999 H 10600 t W15 [E0 31 69 02]

This is my command for moving the dish in small incrediments
(west IIRC).

For *me* I found it necessary to repeat the diseqc sequence.
when using the "move to" command. Since this also Eutelsat
spec (diseqc should be repeated at least 3 times) its nothing
out of the ordinary. You may also want to try this.

>Any one live in nacka - sweden who would like to
> help me out :o) hehe

A bit too far away for me ;o)) Hope the above helps you out.

>Happy easter to you all.

Yes, thanks. Same wishes back to you.

Greetz,
Reinhard


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