Pioneer AVH-P5900DVD/XN/UC Service Manual page 46

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Check 9: Is DACCLK normal?
<Outline> DACCLK for Audio-DAC is created by IC1501 using the 27 MHz master crystal oscillator (X1501).
A
X1501
27 MHz
crystal
<Check method>
B
DVD: DVD-REF-A1 TITLE 1
CD: Playback a normal CDDA.
Common to all DVD-V compatible modules.
Check with DGND being the reference.
In case of NG, check the applicable line, the periphery of IC1501, soldering of the peripheral components and
defective components.
Check point 1 (stylus)
NO.
1 DACCK
2 DACCK
Specification
value 1
C
GND
Side A
D
E
F
Fig 9.3: 27 MHz, DACCLK check point
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1
2
IC1501
DVD-LSI
VCC33 VCC12
Fig 9.1: Clock configuration
Media Specification value 1 Specification value 2
DVD 2.0 V~VCC33 V
CD 2.0 V~VCC33 V
Specification
Specification
value 2
value 3
Fig 9.2: Clock specification value
Check point 2 (IC1501 172 pin)
Check point 1 (stylus)
AVH-P5900DVD/XN/UC
2
3
IC1801
DACCLK Audio-DAC
DGND~0.8 V
DGND~0.8 V
3
4
Specification value 3
36.8640 MHz±300 ppm
33.8688 MHz±300 ppm
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