YAMAHA RECEIVER RX 497

[william1000_1]

Hello, can some one help me with follow problem:
yamaha receiver doesn't works, no display, no relais working
C254 22nF/630 volt was defective, I change this but the problem was not solved. I change follow components but without a result: C254 / C255 / D255 / IC252 The voltage on C 255 is 7 volt I don't know this is correct ?

Thanks in advanced for helping me