Pioneer SC-LX72 - Page 51

51
SC-LX82
5
6 7 8
5
6 7 8
A
B
C
D
E
F
Step 4: NW (NetWork) Audio (MAIN)
JA701 (Pins 1, 2, 3, 6)
Are there
data signals
?
No
Ye s
TD±, RD±
Check IC501 and its periphery.
Check the connectd device.
IC501 (Pins 18-21)
Are there
data signals
?
No
Ye s
Check IC501 and its peripheral
circuits.
Check IC501 and its peripheral
circuits.
To Step 5
Ye s
IC501 (Pin 22)
Is the
voltage "H" ?
No
RXDV
RXD0-3
Ye s
IC701 (Pin 39)
Is there
a signal?
No
Ye s
Check the pins 69, 73-75 of IC701.
Check the patterns between
IC701 and CN1404.
CN1404 (Pin 1)
Is there
a signal?
No
NETSPDIF
NETSPDIF
Step 5: NW (NetWork) Audio (ZONE 2, 3)
JA701 (Pins 1, 2, 3, 6)
Are there
data signals
?
No
Ye s
TD±, RD±
Check IC501 and its periphery.
Check the connectd device.
IC501 (Pins 18-21)
Are there
data signals
?
No
Ye s
Check IC501 and its peripheral
circuits.
Check IC501 and its peripheral
circuits.
End
Ye s
IC501 (Pin 22)
Is the
voltage "H" ?
No
RXDV
RXD0-3
Ye s
IC701 (Pins 167,168,195,21)
Are there
clock and data
signals?
No
Ye s
Check the pins 69, 73-75 of IC701.
Check the patterns between
IC701 and CN1404.
CN1404 (Pins 9,10,11,13)
Are there
clock and data
signals?
No
NMCLK, NLRC, NBCK, NFDAT
NMCLK, NLRC, NBCK, NFDAT