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YAMAHA RX-V650 does not turn on

Khodavandi

May 9, 2024
6
Joined
May 9, 2024
Messages
6
Hi evrybody,
I have a RX-v650 does not turn on. voltage in important point is as below (FUNCTION 2 BOARD) :
K D501=4.8V
K D502=4.8V
C Q501=4.5V
K D511=0 V
PIN 12 IC502=4.8V
PIN 13 IC502=4.8V
PIN 15 IC502=0V
NO WAVE ON PIN 13 & 15 IC502 (POINT 2)
PIN 73 IC502=4.8V
PIN 74 IC502=0V WHEN PUSH POWER SW =2V
PIN 69 IC502=0V EVEN PUSH POWER SW
Can you help me ?
 

Delta Prime

Jul 29, 2020
2,115
Joined
Jul 29, 2020
Messages
2,115
I knew that...o_O
That's what happens when there's too much room for interpretation.
And I don't know what I'm talking about so I'll stop here...
 
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