AVX-P7300DVD
Check 4: Is the audio circuit operating normally?
Reproduce DVD-REF-A1 Title 2 Chapter (48V/16-bit/1 kHz/0dB). Verify the circuit described in Figure 2.
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
components, in the vicinity of the main components (the section marked 4 in the circuit diagram circuit diagram).
NO.Verification Verification Rated RatedReference
location 1location 2value 1value 2waveform
1AOUT0IC1601 pin-3 For2.2V0.8VWaveform 3
CXK6113, include also and overand lower
CN1701 pin-37
2SRCKAVIC1601 pin-2 For2.2V0.8VWaveform 3
CXK6113, include also and overand lower
CN1701 pin-38
4LRCKAVIC1701 pin-42.2V0.8VWaveform 3
CXK6113, include alsoand overand lower
CN1701 pin-36
Rated value1
GNDRated value 2
Figure 7: Three serial output rated values
Checks are conducted with the measurement circuit below.
NO.Verification VerificationRated valueReference
location 1location 2waveform
4LOCN1701 15pin 1120?150mVWaveform 4
5ROCN1702 12pin 1120?150mVWaveform 4
Rated value
Figure 8: Analog audio outputs (LO and RO) rated values
HOST I/F
Q1602.3 LO
Peripheral
muting RO
circuit
22kThese resistors are inserted.
AAGND
Figure 9: LO and RO output measurement circuit
NO.Verification VerificationRated value 1Rated value 2Reference
location 1location 2waveform
6IEC958CN1702 2pin2.2V and over0.8V and lowerWaveform 5
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ACEC
PIONEER
