AVIC-Z110BT/XN/UC
68
1
2
3
4
1
2
3
4
C
D
F
A
B
E
CN1901
HOST I/F
IECOUT
O
L
K
C
R
L
ADOUT
O
R
K
C
R
S
GNDAU
IC1801
Audio-DAC
IC1501
DVD-LSI
Fig 10.1: Audio circuit
Check 10: Is the audio circuit OK?
<Outline> The serial 3 lines digital DACCLK, output from DVD-LSI (IC1501), are converted to analog audio
signal at Audio-DAC (IC1801) and are output from the HOST I/F (CN1901).
Simultaneously, the analog MUTE signal is also output from DVD-LSI (IC1501) via the HOST I/F.
The digital audio signal (IECOUT), output from DVD-LSI (IC1501).
<Check method> Playback DVD-REF-A1 TITLE 2 CHAPTER 1 (48 k/16 bit 1 kHz 0 dB),
and check with DGND being the reference.
In case of NG, check the applicable line, periphery of major components as described in the above drawing,
soldering of the peripheral components and defective components.
NO.
Check point 1 (stylus)
1
2
3
Specification value 1
Specification value 2
Reference waveform
ADOUT3
SRCK
LRCK
VCC33 V-0.6 V or higher
VCC33 V-0.6 V or higher
VCC33 V-0.6 V or higher
0.4 V or lower
0.4 V or lower
0.4 V or lower
Waveform 1
Waveform 2
Waveform 3
GND
Fig 10.2: Serial 3 lines specification value
Specification
value 1
Specification
value 2
Содержание AVIC-F10BT
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