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Satellite TV receivers & systems support forums
Satellite Systems - What to Buy - What to install
This Is News To Me. Stab HH100
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<blockquote data-quote="RustySpoons" data-source="post: 1070518" data-attributes="member: 412012"><p>I read the post on the other forum you just linked to, when I said it's there for current limiting its to limit the power drawn from the STB, especially if there is a fault condition. The 7805 doesn't need it normally, however it can sink 1amp (Or more depending on flavor) which you do not want on your STB!</p><p>Check Q2 to see if it reads correctly on diode setting with multimeter, resistance setting will tell you if it's completely gone however but will not show if it's functioning.</p><p>When you fit the replacement R20 stand it up longer on its legs so it's off the PCB, it will get better airflow, not char the board and the legs will also help dissipate heat. No harm in going up with current capability, i.e. 1w instead of 1/2w etc (Not sure whats fitted). But I wouldn't mess around with the value.</p></blockquote><p></p>
[QUOTE="RustySpoons, post: 1070518, member: 412012"] I read the post on the other forum you just linked to, when I said it's there for current limiting its to limit the power drawn from the STB, especially if there is a fault condition. The 7805 doesn't need it normally, however it can sink 1amp (Or more depending on flavor) which you do not want on your STB! Check Q2 to see if it reads correctly on diode setting with multimeter, resistance setting will tell you if it's completely gone however but will not show if it's functioning. When you fit the replacement R20 stand it up longer on its legs so it's off the PCB, it will get better airflow, not char the board and the legs will also help dissipate heat. No harm in going up with current capability, i.e. 1w instead of 1/2w etc (Not sure whats fitted). But I wouldn't mess around with the value. [/QUOTE]
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Satellite TV receivers & systems support forums
Satellite Systems - What to Buy - What to install
This Is News To Me. Stab HH100
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