XV-M565BK/M567GD
1-28
5. Audio Volume
Power
supplied correctly
to each IC?
to Power Supply
Volume
YES
NO
OK
Is sound
signal output
from J701 (pin
jack)?
Voltage of
Q791 collector at
-5.5V?
Is
digital signal
input to
IC703"2"?
NO
Check IC703
and PLL.
YES
Is digital
signal output from
IC703"10", "13", "16"
and "19"?
Replace
IC703.
Check IC751, IC741
and their periphery.
* Changing over the cutoff frequency of analog LPF
When fs=44.1kHz or 48kHz,
Microcomputer port FS2 is at the "L" level,
and Q741 and Q751 are turned ON.
When fs=96kHz,
Microcomputer port FS2 is at the "H" level,
and Q741 and Q751 are turned OFF.
YES
YES
NO
NO
NO
YES
IC701 is
checked
To Next Page
Loading...
Need help?
General
