Pioneer Super Tuner IIID AVH-P5200BT, Руководство по обслуживанию

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AVH-P5200BT/XNUC
56
1 2 3 4
1 2 3 4
C
D
F
A
B
E
<Outline>The serial three-wire digital DACCLK that is output from DVD-LSI (IC1501) is converted
to the analog audio signal using Audio-DAC (IC1801), and the converted signal is output from
HOST I/F (CN1901).
Simultaneously, the analog MUTE signal is output through HOST I/F from DVD-LSI (IC1501).
The digital audio signal (IECOUT) output from DVD-LSI (IC1501) is output through CN1901.
CN1901
HOST I/F
LO LRCK
ADOUT
RO SRCK
GNDAU
IECOUT
Fig. 10.1: Audio circuit
<How to check>
Play back DVD-REF-A1 TITLE2 CHAPTER1 (48k/16bit 1kHz 0dB).
Checking should be based on DGND.
If NG is found, check the relevant lines, periphery of main components described above,
soldering of peripheral components and defective components.
GND
Fig. 10.2: Rated value of serial three wires
IC1801
Audio-DAC
IC1501
DVD-LSI
Rated value 1
Rated value 2
Check 10: Audio circuit OK?
NO. Spot to check 1 (sending pin) Rated value 1 Rated value 2 Reference waveform
1 ADOUT VCC33V-0.6V or more 0.4V or less Waveform 1
2 SRCK VCC33V-0.6V or more 0.4V or less Waveform 2
3 LRCK VCC33V-0.6V or more 0.4V or less Waveform 3