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  1. bushtech

    Denon AVR 1804 amp won't switch on

    Interim Report: Well, the amp is currently running on my bench. Many many kudos to 73's de Edd for his patient off forum help to revive this patient. After a lot of testing asked for by 73's de Edd we replaced diode D126 ( next to relay 106) which was gone. Also replaced relay 106 which was...
  2. bushtech

    fta Sat TV decoder: Need some ID

    "Measuring the two inductors: PH01: 8.1Ω PH02: 5.8Ω" Nowhere near 0Ω 73's de Edd, does this mean they are bad?
  3. bushtech

    USB Wifi Dongle Issue

    lol. Well done! The important thing is that it now works. Put some "duck" tape around it:D
  4. bushtech

    fta Sat TV decoder: Need some ID

    Thanks Externet Will check those voltages. Don't have a scope so can't check spikes/ripple. Sigh. Looks like keeping it running for a while last night bombed it out again. Fired it up again this morning and it went straight to 2 flashing red leds
  5. bushtech

    fta Sat TV decoder: Need some ID

    The only component that I have felt hot so far is the heatsink. Just had another feel around and the only thing I can feel hot is that heatsink getting hotter and hotter. I am still a rookie at electronics so if you can give me some pointers as to where I can read the voltage on the power rails...
  6. bushtech

    fta Sat TV decoder: Need some ID

    Ah! This might help. Powered it on again and it went to one red led burning which is correct as there is no link to sat dish. But if I keep it powered on I expect it to bomb out again in about half an hour as it did the previous time. But this might be a clue as something is resetting itself...
  7. bushtech

    fta Sat TV decoder: Need some ID

    @ the great potato: If you decide to fix it please post a photo of your pcb here. Would like to compare it to mine. And if you buy a new one please drop a link here, I might still end up in the same boat. @Externet: Don't think so, it switches on straight to the 2 red leds flashing. I managed...
  8. bushtech

    Dpdt relay omron MY2N 240vac 24vdv

    Oops. I stand corrected. Thanks Harald. Learnt something new today
  9. bushtech

    Dpdt relay omron MY2N 240vac 24vdv

    Maybe draw a little schematic so we can see what you are trying to do. I am no expert but from what I've seen dealing with these relays the 24VDC across the coil is the signalling circuit. Apply 24Vdc to it and the switch closes allowing the 240VAC to flow. The coil pins are normally 2 on their...
  10. bushtech

    fta Sat TV decoder: Need some ID

    To try and check must I trace the line from the centre (+) of the power supply connection?
  11. bushtech

    fta Sat TV decoder: Need some ID

    Wall wart putting out 12DC at 1.5A Multimeter in lowest Ω mode (200Ω) i get a reading of 0.2Ω when touching probes together. Measuring the two inductors: PH01: 8.1Ω PH02: 5.8Ω And Edd, a brilliant deduction on the car port. It is a credit card slot. Decoder doesn't use a credit card and it's...
  12. bushtech

    fta Sat TV decoder: Need some ID

    O great potato I am in South Africa using SES5 sat, don't think it will be of much use to you
  13. bushtech

    fta Sat TV decoder: Need some ID

    Yes both supplies read correctly when unplugged from unit
  14. bushtech

    fta Sat TV decoder: Need some ID

    Thanks for the heads up on the edit, read it now. I have also ordered diodes D751 and D752 for replacement, couldn't find D754 (see it at LH corner of carport) Yeah, was planning on just replacing it, phoned Space and was told that they are not importing them anymore. The interesting is that...
  15. bushtech

    fta Sat TV decoder: Need some ID

    Hmmmm. Now you're starting to worry me. It's a 12v 1.5A out power supply but I only read around 3v on the power supply plug in connector. Did plug in another power supply but got the 3v again. In my ignorance reasoned that something on the board is dragging the voltage down.
  16. bushtech

    fta Sat TV decoder: Need some ID

    3 of the caps show no voltage across them, I am picking up replacements tomorrow for all the caps. Hope that sorts it
  17. bushtech

    fta Sat TV decoder: Need some ID

    Apologies edd. Only saw the second part of your post now. What brand is this unit ? http://www.spacetv.co.za/pages/our-products/dsd200-hd-4346.php
  18. bushtech

    fta Sat TV decoder: Need some ID

    Thanks a mil dave. Unfortunately I am as bad at photography as I am at electronics:( I suppose when you know your onions you can read a circuit board like a book. Unfortunately it's all braille to me. Don't know if I'll ever reach that level of proficiency. Another thing that interested me on...
  19. bushtech

    fta Sat TV decoder: Need some ID

    Thanks davenn. Those are suffixes on the board
  20. bushtech

    fta Sat TV decoder: Need some ID

    lol. Thanks St. Edd How do you figure out it's a choke?
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