Read Sony DHC-AZ3DM / DHC-AZ7DM / HCD-AZ3DM / HCD-AZ7DM (serv.man2) Service Manual online
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2-2. Detection of PC
USB DAC
(IC1)
System
controller
(IC401)
Amp
PC
USB connector
on the back panel
on the back panel
1
2
3
Driver
Input select
(IC101)
USB connecter on the BACK panel only can be used for PC connection.
When PC is connected to “USB connecter on the back panel” of DHC-AZ7DM
with USB cable, the input voltage of VBUS (pin1 of USB cable) is detected by
PCM2704 POWER terminal of System controller(IC401 45pin).
with USB cable, the input voltage of VBUS (pin1 of USB cable) is detected by
PCM2704 POWER terminal of System controller(IC401 45pin).
Then, PC connection is detected.
When the function of DHC-AZ7DM sets to “PC” with FUNCTION key, System
controller output the control signal to Input select (IC101) to select the source
from USB DAC(IC1).
controller output the control signal to Input select (IC101) to select the source
from USB DAC(IC1).
Please check the FUNCTION is set to “PC” well.
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