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Dreambox Satellite Receiver | Tutorials | Software
Dreambox 500
DM500s 22khz tone circuit board fix
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<blockquote data-quote="mickeydebo" data-source="post: 552483" data-attributes="member: 301984"><p>Thanks for the suggestions and your time.</p><p></p><p>I noticed there is a small LED on the motherboard (D72) I assuming that this comes on when the tone is selected or the high frequencies (SKY ONE),I havent got a spare DM500s to test this anymore.</p><p>Can somone please let me know if this is correct? </p><p></p><p>Also looked at the circuit diagrammes and 22khz tone seems to be generated from the motherboard.</p><p></p><p>Can someone also help me with this one im getting some weird readings from resistors.</p><p>(R715) Schematic says should read 472 ohms i assume but im getting a reading of 4.7Kohms</p><p>OK so it could be me so I checked resistor R710 & R711 wich schematic says 333 ohms and I get a reading of 33.3kohms. </p><p>Could you pls tell me wich one is wrong? (If any),</p><p>I would like to fix it just to help someone else next time this crops up.</p><p>Ok it definatly getting nearer the BIN heheh.</p></blockquote><p></p>
[QUOTE="mickeydebo, post: 552483, member: 301984"] Thanks for the suggestions and your time. I noticed there is a small LED on the motherboard (D72) I assuming that this comes on when the tone is selected or the high frequencies (SKY ONE),I havent got a spare DM500s to test this anymore. Can somone please let me know if this is correct? Also looked at the circuit diagrammes and 22khz tone seems to be generated from the motherboard. Can someone also help me with this one im getting some weird readings from resistors. (R715) Schematic says should read 472 ohms i assume but im getting a reading of 4.7Kohms OK so it could be me so I checked resistor R710 & R711 wich schematic says 333 ohms and I get a reading of 33.3kohms. Could you pls tell me wich one is wrong? (If any), I would like to fix it just to help someone else next time this crops up. Ok it definatly getting nearer the BIN heheh. [/QUOTE]
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Linux Based Receivers
Dreambox Support Forum
Dreambox Satellite Receiver | Tutorials | Software
Dreambox 500
DM500s 22khz tone circuit board fix
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