Pioneer DVR-LX60 Service Manual page 36

1
2. In a case when only the HDMI audio is not outputted
Is a DVI device connected (with a DVI device, only the video signal is output, and no
sound is output)? Is an HDMI device that does not support the audio signals connected?
A
No (Checking of the S/PDIF path)
Set the Dolby Digital output setting in "Audio
Output" of the home menu to PCM. Play
back the Dolby Digital audio signal of a DVD.
Is the audio signal correctly output from the
HDMI and coaxial output (S/PDIF)?
There may be a
problem with the
B
coaxial output circuit.
Yes
(Coaxial output)
Note 1 : R5708: AT model
R5701: DT model
C
D
E
F
36
1
2
HDMI: No HDMI: No
S/PDIF: No S/PDIF: Yes
Measure the signal
at R*** (Note 1)
with an oscilloscope,
using a probe, to
check if the signal is
correct.
With the aid of an oscilloscope,
check IC1001 and IC5801 for
the points listed below.
• R5865 (HTX_CLK)
From the following points, a 3.3V
swing signal must be output:
• R5826 to R5828
No
There may be a problem with the EMMA2RFEX.
DVR-LX60
2
3
No (Checking of the CLK, DATA, LRCK,
and BCK paths)
Play back a CD. Are the
HDMI and analog audio
signals correctly output?
HDMI: No HDMI: No
Analog: Yes Analog: No
Measure the signal at
R1030 (CLK), R3201 (BCK),
R3202 (DATA) and R3203
(LRCK) with an oscilloscope,
using a probe, to check if
the signal is correct.
No
No
3
4
There may be
a problem
since audio
Yes
DAC circuit.
4