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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.
Checks are to be conducted using GNDAU1 (sensing pins) as a reference.
AIf 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.
NO.Verification Verification Rated RatedReference
location 1location 2value 1value 2waveform
1AOUT0IC1503 90pin2.0V0.8VWaveform 3
and overand lower
B2SRCKIC1605 1pin2.0V0.8VWaveform 3
and overand lower
3LRCKIC1605 3pin2.0V0.8VWaveform 3
and overand lower
Rated value1
GNDRated value 2
C
Three serial output rated values
Checks are conducted with the measurement circuit below.
NO.Verification VerificationRated valueReference
location 1location 2waveform
4LOCN1611 36pin 1100?150mVWaveform 4
5ROCN1611 34pin 1100?150mVWaveform 4
D
Rated value
Analog audio outputs (LO and RO) rated values
HOST I/F
LO
ERO
22k&These resistors are inserted.
AAGND
LO and RO output measurement circuit
NO.Verification VerificationRated value 1Rated value 2Reference
location 1location 2waveform
6IECOUTCN1501 1pin2.2V and over0.8V and lowerWaveform 5F
95DVH-P5000MP/UC
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ACEC
PIONEER
