80
SDV-P7
Check 4: Is the audio circuit operating normally?
Reproduce DVD-REF-A1(GGV1018) Title 2 Chapter (48k/16-bit/1 kHz/0dB).
This check is the same for all DVD-V compatible modules.
Checks are to be conducted using GNDAU1 (sensing pins) as a reference.
If the locations, listed under "verification location 2", can be verified, there is no need to conduct verifications for the
locations listed under "verification location 1."
If the result is not satisfactory, check to see if there are any problems with the resin flux cored solder, parts and compo-
nents, in the vicinity of the main components (the section marked
4
in the circuit diagram circuit diagram).
NO.
Verification Verification
Rated
Rated
Reference
location 1
location 2
value 1
value 2
waveform
1
AOUT0
IC1601 pin-3 For
2.2V
0.8V
Waveform 3
CXK6113, include also
and over
and lower
CN1701 pin-37
2
SRCKAV
IC1601 pin-2 For
2.2V
0.8V
Waveform 3
CXK6113, include also
and over
and lower
CN1701 pin-38
4
LRCKAV
IC1701 pin-4
2.2V
0.8V
Waveform 3
CXK6113, include also
and over
and lower
CN1701 pin-36
Rated value1
Rated value 2
GND
Three serial output rated values
Checks are conducted with the measurement circuit below.
NO.
Verification Verification
Rated
value
Reference
location 1
location 2
waveform
4
LO
CN1701 15pin
1120
±
150mV
Waveform 4
5
RO
CN1702 12pin
1120
±
150mV
Waveform 4
Analog audio outputs (LO and RO) rated values
LO and RO output measurement circuit
NO.
Verification
Verification
Rated value 1
Rated value 2
Reference
location 1
location 2
waveform
6
IEC958
CN1702 2pin
2.2V and over
0.8V and lower
Waveform 5
22k
AAGND
These resistors are inserted.
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