Marantz AV7701 Service Manual page 104

Controlled waveform (I2C), when power is turned on : Check items (24)/(32)
SCL
SDA
Power ON
Timing waveform illustration from the start of CEC3.3V to when reset is released : Check items (28)
CEC3.3V
338ms
7850_RESET
Timing waveform illustration from the start of CEC3.3V to when reset is released : Check items (31)
DV3.3V
314ms
8003_RESET
Zoom
Zoom
104
10ms 10ms