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Post by mastertech on Dec 30, 2013 18:32:49 GMT -5
Both on amp board. Diode and resistor may be SM.
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Post by jeremy on Dec 30, 2013 19:06:55 GMT -5
Found R1107, its on the bottom of the board, as is D1055, Ill remove the 1107 from the board first and see what it does
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Post by jeremy on Dec 30, 2013 19:45:40 GMT -5
Got the 100K R1107 SMD removed in 100% working condition still! Quite proud because its pretty microscopic!! Soldering it in will be easier than removing it was. Ill re-assemble the amp back into the unit ad power it up again and let you know the results
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Post by mastertech on Dec 30, 2013 19:50:26 GMT -5
Did you remove D1055 also?
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Post by jeremy on Dec 30, 2013 19:54:20 GMT -5
No I haven't yet, should I?
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Post by mastertech on Dec 30, 2013 20:02:18 GMT -5
Yes, that is the other protect circuit.
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Post by jeremy on Dec 30, 2013 20:09:08 GMT -5
Will do, ill put it together and let you know what it does then  |
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Post by jeremy on Dec 30, 2013 20:20:37 GMT -5
D1055 removed successfully and reads okay as well! Ill put it together and give the results.
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Post by jeremy on Dec 30, 2013 20:49:12 GMT -5
Okay, got it all back together, powered it on, it still does the same thing, displays POWER OFF, then goes back into standby, that's with both the D1055 and R1107 removed.
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Post by mastertech on Dec 30, 2013 20:53:25 GMT -5
Can you check pins 1 and 2 on that connector again for DC?
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Post by jeremy on Dec 30, 2013 21:03:08 GMT -5
Checked pins 1 and 2 on CN1051 again, same exact readings as before on those pins.
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Post by mastertech on Dec 30, 2013 21:15:16 GMT -5
Darn it. D1052 was for the FL. But if the other pin hasn't changed then something else is also going on.
Ok, here we go.
1)Remove D1052.
2)Locate Q1056 and Q1057 and diode test legs for any shorts. Then remove both. Test legs again removed.
3)reassemble and see if it stays on now.
4)if still wont stay on, remove: D1051, D1053 and D1054.
This should be all protection. It should stay on now and if so then test for DC on output lines but not at speaker connects because the relays may not be closed.
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Post by jeremy on Dec 30, 2013 21:20:59 GMT -5
Will do. I'll pick up from there tomorrow morning, ive had a long day today so I'm pretty cooked. See you tomorrow |
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Post by mastertech on Dec 30, 2013 21:25:19 GMT -5
Same here.
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Post by jeremy on Dec 31, 2013 16:53:58 GMT -5
okay I'm back, I did steps 1 through 3 and the transistors both checked out in and out of circuit, the diode D1052 checked good in circuit and is now MIA somewhere in the room (it flew off the board unfortunately). The receiver reassembled now stays on and the 2nd relay clicks, so what's next? Also D1052, do you know what the part # is so I could order a new one?  I haven't given up yet on finding it, but I don't think I will... |
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I haven't given up yet on finding it, but I don't think I will...
