Pioneer SX-LX70SW Service Manual page 33

5
Step 4-3-2: When a sound is not out with the HDMI
(When the source is SACD)
HDSW
IC651 (Pin 1)
No
Is the voltage
Check the path to the microcomputer.
3.3 V?
Yes
DSDR0 (HLR)
IC651 (Pin 13)
Is there
No
abnormality at the
a audio data
parts and patterns
input?
in the input path?
Yes
IC651 (Pin 3)
DSDL0 (HFDT)
Is there
No
abnormality at the
a audio data
parts and patterns
input?
in the input path?
Yes
IC651 (Pin 6)
HBCK
Is there
No
abnormality at the
a bit clock
parts and patterns
input?
in the input path?
Yes
To Step 5-2
5
6
Is there
No
Replace IC651.
Is there
No
Replace IC651.
Is there
No
Replace IC651.
6
7
Step 5-1: Audio Clock (from Switch to 1st DSP)
IC651 (Pin 9) MCLK
Is there
No
a master clock
(24.576 MHz)?
Yes
IC291 (Pin 1)
Is there
No
a master clock
(24.576 MHz)?
Yes
IC291 (Pin 3) MCK1
Is there
No
a master clock
(24.576 MHz)?
Yes
IC101 F14 (R112)
Is there
No
a master clock
(24.576 MHz)?
Yes
IC651 (Pin 12)
LCK1
Is there
No
a LR clock
?
Yes
IC101 H13 (R114)
Is there
No
a LR clock
?
Yes
E
SX-LX70SW
7
8
Is there
No
abnormality at the
parts and patterns
in the path?
Replace IC651 or,
when IC101 is defective,
Replace the Assy.
Is there
No
abnormality at the
parts and patterns
in the path?
Replace IC651 or,
when IC101 is defective,
Replace the Assy.
Is there
No
abnormality at the
parts and patterns
in the path?
Replace IC651 or,
when IC101 is defective,
Replace the Assy.
Is there
No
abnormality at the
parts and patterns
in the path?
Replace IC651 or,
when IC101 is defective,
Replace the Assy.
Is there
No
abnormality at the
parts and patterns
in the path?
Replace IC651 or,
when IC101 is defective,
Replace the Assy.
Is there
No
abnormality at the
parts and patterns
in the path?
Replace IC651 or,
when IC101 is defective,
Replace the Assy.
8
A
B
C
D
E
F
33