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Post by mastertech on Jul 25, 2018 14:28:56 GMT -5
Yes, the wattage designates the size. The type is not critical but I would use flame proof if possible. METAL OXIDE FILM FLAMEPROOF is what is in there now.
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Post by brokendenon on Jul 25, 2018 14:35:26 GMT -5
Okay thanks! I've never soldered anything before, but I guess it's time to learn. IF I can figure out how to get that main board out...
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Post by mastertech on Jul 25, 2018 15:31:01 GMT -5
Can you just cut the legs of that bad resistor close to the body of the resistor and solder the new resistor to those legs sticking up? That way you wont have to remove that board if it is that difficult.
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Post by brokendenon on Jul 25, 2018 16:14:06 GMT -5
It looks like a possibility. What's a good thing to use to cut the legs with?
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Post by tibimakai on Jul 26, 2018 10:12:54 GMT -5
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Post by brokendenon on Jul 26, 2018 12:09:36 GMT -5
Thanks!
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Post by brokendenon on Aug 2, 2018 20:20:48 GMT -5
Got it soldered in and I'm still getting 22-23v everywhere, and it's still going into protect. New resistor measures within a couple ohms of 33 when installed.
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Post by mastertech on Aug 2, 2018 20:48:36 GMT -5
You need to do this test again. DMM on DC voltage. On that amp board I need you to take 3 voltage readings at each of the following connectors. Leave the harnesses connected and hopefully you can do the testing with everything connected properly. Fill in the voltages in the following sections. Use pin 7 in each connector for ground (neg probe) and test with pos probe at pins 1,3 and 5 of each connector with receiver powered on. CN55B - pin 1 ___, pin 3 ___, pin 5 ___. CN54B - pin 1 ___, pin 3 ___, pin 5 ___. CN53B - pin 1 ___, pin 3 ___, pin 5 ___. CN52B - pin 1 ___, pin 3 ___, pin 5 ___. CN51B - pin 1 ___, pin 3 ___, pin 5 ___. CN57B - pin 1 ___, pin 3 ___, pin 5 ___. CN56B - pin 1 ___, pin 3 ___, pin 5 ___. |
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Post by brokendenon on Oct 11, 2018 14:43:23 GMT -5
Sorry for the huge delay! Been out of commission for a while!
Did that test again, and except for CN56B they are all 22, -22, 23
CN56B is 22, -1mv, 23
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Post by mastertech on Oct 12, 2018 10:03:50 GMT -5
Well I see you have a neg voltage there now. Test Q5814 for any shorted legs.
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Post by brokendenon on Oct 12, 2018 12:31:58 GMT -5
I dont see that on the top of the main board. Is it possible that it's only accessible from the bottom side of the main board? If so, I'll need to take that board out, as well.
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Post by mastertech on Oct 12, 2018 12:43:18 GMT -5
Looks like it is on the bottom. Lets try something else then. Remove the diff-amp board and do a voltage test in the connector of CN51B pins 1,3,5 on the main.
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Post by brokendenon on Nov 17, 2018 12:19:08 GMT -5
I cant seem to be able to disconnect the black connectors holding the diff-amp to the main-amp board. Any tips or tricks?  |
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Post by brokendenon on Nov 17, 2018 12:19:46 GMT -5
I'm prying them apart, but I don't seem to be making any progress...
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Post by tibimakai on Nov 17, 2018 14:37:42 GMT -5
There is no screw holding the board down? At least on Onkyos, there are a couple of screws.
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