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Post by onkyohelp on Mar 19, 2021 11:10:57 GMT -5
Hi I have an Onkyo TX-NR616 that has is constantly clicking when I plug it into the mains I can hear the relay clicking but also the transformer is vibrating not sure why I have tried with all the ribbon cables connected and with just JL901B connected but same symptoms I have tried with fan and no fan I have followed this thread repairalmostanything.com/thread/790/onkyo-relay-constantly-clicking-txnrI have replaced the components mentioned on this thread with hope that it will turn on but with no success I am a novice when repairing Amplifiers but know a little about electronics but always wanting to learn more This is My own Amplifier and is well looked after like a baby I had to open because I needed to check for leaking caps as I was not getting any HDMI output Please can someone help me fix this. I will be so grateful and will appreciate it so so much There are allot of talented people here so I look forward in getting to know you all and
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Post by onkyohelp on Mar 20, 2021 7:46:54 GMT -5
Hi All Please can anyone help Thanks so much Much appreciated
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Post by onkyohelp on Mar 21, 2021 14:31:27 GMT -5
I have put all the screw back for the power supply board that secures it to the chassis and I put two screws securing the hdmi board to the chassis
I tested ground from pin 3 from jl901b to the chassis and it was a good ground. Near to the same as when I touch my meter probes together. I get voltage on the cable coming from the power supply board that connects to the hdmi board Below are measurements taken from when the cable is plugged into the hdmi board Pin 1 is 12v but when relay clicks it goes down Pin 2 is 0v Pin 3 is GND Pin 4 is 12 v Pin 5 is 0v
I read that if I put jumper wire from Pin 1 and Pin 3 on jl901b which is on the hdmi board the relay should latch but with the transformer cable removed I tried this and got nothing I tested the relay and got about 300 ohms And the relay is clicking I am really stuck and will appreciate some detailed help from this amazing community Please
Many Thanks
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Post by onkyohelp on Mar 22, 2021 8:48:01 GMT -5
The relay is working it is latching when i jump pin 1 and pin 3 from the wire coming from the power supply board
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Post by onkyohelp on Mar 22, 2021 12:48:02 GMT -5
I have been doing more voltage measurements. The results are below
I tested q7018
pin 1 is gnd, pin 2 is 4.8v pin 3 is 3.3v
also tested q7019
pin 1 is gnd, pin 2 is 11.89v - 11.90v pin 3 is 5.6v
Nothing is getting hot and i cant see any bulging caps
Please will really appreciate all the help from this forum Many Thanks in advance
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Post by onkyohelp on Mar 23, 2021 6:13:10 GMT -5
I see that F201, that shows no continuity.
I am not sure how this has blown, there are no marks or anything Would this cause for it not to turn on
Please help Thanks all in advance
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