37
SC-27
5
6
7
8
5
6
7
8
A
B
C
D
E
F
Step 5: Audio Si
g
nal
IC2301 (Pin 136)
BCK
LRCK
No
Yes
c
IC2401 (Pins 63,76)
No
Yes
d
IC2401 (Pins 61,78)
No
f
IC2301 (Pin 125)
g
h
IC2301 (Pin 135)
DATA
No
Yes
Yes
No
Yes
e
To Step 6
Is there a
BCK o
u
tp
u
t from
1st DSP
?
Is there a
BCK inp
u
t to
2nd DSP
?
Is there a
LRCK o
u
tp
u
t from
1st DSP
?
Is there a
LRCK inp
u
t to
2nd DSP
?
Is there a
DATA o
u
tp
u
t from
1st DSP
?
The 1st DSP Block is in fail
u
re.
Proceed to Step 7.
The 1st DSP Block is in fail
u
re.
Proceed to Step 7.
The 1st DSP Block is in fail
u
re.
Proceed to Step 7.
Check the parts and patterns
in the path.
Check the parts and patterns
in the path.
IC2401 (Pin 1)
No
Yes
Is there a
DATA inp
u
t to
2nd DSP
?
Check the parts and patterns
in the path.
Step 6: Audio Si
g
nal
IC2401 (Pin 77)
BCK
LRCK
No
Yes
i
IC2403 (Pin 11)
No
Yes
j
IC2403 (Pin 14)
No
l
IC2401 (Pin 7)
m
n
IC2401 (Pin 79)
DATA
No
Yes
Yes
No
Yes
k
It is
v
ery diffic
u
lt to diagnose
w
hich part is in fail
u
re.
Is there a
BCK o
u
tp
u
t from
2nd DSP
?
Is there a
BCK inp
u
t to
SELECTOR
?
Is there a
LRCK o
u
tp
u
t from
2nd DSP
?
Is there a
LRCK inp
u
t to
SELECTOR
?
Is there a
DATA o
u
tp
u
t from
2nd DSP
?
The 2nd DSP Block is in fail
u
re.
Proceed to Step 8.
The 2nd DSP Block is in fail
u
re.
Proceed to Step 8.
The 2nd DSP Block is in fail
u
re.
Proceed to Step 8.
Check the parts and patterns
in the path.
Check the parts and patterns
in the path.
IC2403 (Pin 5)
No
Yes
Is there a
DATA inp
u
t to
SELECTOR
?
Check the parts and patterns
in the path.