Yamaha RX S600- no sound

[srt1]

I got yAMAHA RS S600 for repair, the problem is it have no sound in dsp mode in direct mode i am geting sound, but when i am playing file from usb i am not geting sound in even direct mode also, so i open and investigate where is the problem, i checked the dac chip when i am touching on DAC chip(PCM1681) i am geting distorted sound, then i checked digital input pins with multimeter which i put in frequency measurement mode, i checked the following pins LRCK, BCK DOUT,,

LRCK-44.1KHZ measured
DATA1(pin no -6) alsmost 88.1 khz
BCK and SCK no reading may be its out of range i dont know what would be the frequency on it,

then i shorted BCK to ground using a jumber wire for few seconds , after short clear sound but its last long only few seconds , i try this 2 3 times , also i found that when i am touching the ic sound again going ,

is it problem with this DAC ic or any filter capacitor

[srt1]

Re: Yamaha RX S600- no sound

any one can helpme ? also i found just now when i am touching the pcm1681 i am geting distorted audio also sometimes clear sound for few seconds , i did resolder this ic but no change

[srt1]

Re: Yamaha RX S600- no sound

i am uplaoding schamtic here this is same rs s600

[srt1]

Re: Yamaha RX S600- no sound

Hi.. i replaced PCM1681 now its ok..

[Koprol]

Re: Yamaha RX S600- no sound

Well, good job then! Hou didn’t need any help after all.

[srt1]

Re: Yamaha RX S600- no sound

well, good job then! Hou didn't need any help after all.

yes....