| Author |
Message |
Michael
Guest
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 Posted:
Thu Sep 08, 2005 6:57 am Post subject:
looking 4 a schematic 4 HTS sytem 70 |
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Hi all,
I know I'm really fishing but...... I need to know the vhf modulator supply
voltage is and where it comes from. My System 70 was working fine until a
few weeks ago. The vhf modulator feeds a distant bedroom. It looks as if the
supply voltage is missing. The modulator "box" is different than the Tracker
V series, so all of the junk in the shed does me no good. The modulator is
labeled B,A,V,G. I'm gonna guess that it's B+, audio, video and ground.
Problem is I dunno what the proper supply voltage is.... The part that
really gets me is that the IRD works fine in every other aspect!
I know, just add an external modulator and be done. If I can "bypass" the
normal supply source and find another point with the same potential, I may
be back in the race.
Thanks all,
Michael
cheapotronxatyahoodotcom |
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kilmister
Guest
|
| Posted:
Sat Sep 10, 2005 4:08 pm Post subject:
Re: looking 4 a schematic 4 HTS sytem 70 |
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trace the circuit back and find the bad component.
"Michael" <cheapotronx@yahoo.com> wrote in message
news:7UMTe.62$pW1.5@trndny07...
| Quote: | Hi all,
I know I'm really fishing but...... I need to know the vhf modulator
supply
voltage is and where it comes from. My System 70 was working fine until a
few weeks ago. The vhf modulator feeds a distant bedroom. It looks as if
the
supply voltage is missing. The modulator "box" is different than the
Tracker
V series, so all of the junk in the shed does me no good. The modulator is
labeled B,A,V,G. I'm gonna guess that it's B+, audio, video and ground.
Problem is I dunno what the proper supply voltage is.... The part that
really gets me is that the IRD works fine in every other aspect!
I know, just add an external modulator and be done. If I can "bypass" the
normal supply source and find another point with the same potential, I may
be back in the race.
Thanks all,
Michael
cheapotronxatyahoodotcom
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Michael
Guest
|
| Posted:
Wed Sep 14, 2005 12:08 am Post subject:
Re: looking 4 a schematic 4 HTS sytem 70 |
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I would if I had the time.
What I was really looking for is the operating voltage of the modulator. Not
hearing anything from the ng, I figured that 5vdc was a good place to start.
I cut the "B" wire free from the chassis connector and tied it to a 5vdc
output of the power supply. Bingo the modulator plays again.
"kilmister" <brian_santoro@yahoo.com> wrote in message
news:m4-dnQKTjsj3er_eRVn-tg@rogers.com...
| Quote: | trace the circuit back and find the bad component.
"Michael" <cheapotronx@yahoo.com> wrote in message
news:7UMTe.62$pW1.5@trndny07...
Hi all,
I know I'm really fishing but...... I need to know the vhf modulator
supply
voltage is and where it comes from. My System 70 was working fine until
a
few weeks ago. The vhf modulator feeds a distant bedroom. It looks as if
the
supply voltage is missing. The modulator "box" is different than the
Tracker
V series, so all of the junk in the shed does me no good. The modulator
is
labeled B,A,V,G. I'm gonna guess that it's B+, audio, video and ground.
Problem is I dunno what the proper supply voltage is.... The part that
really gets me is that the IRD works fine in every other aspect!
I know, just add an external modulator and be done. If I can "bypass"
the
normal supply source and find another point with the same potential, I
may
be back in the race.
Thanks all,
Michael
cheapotronxatyahoodotcom
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