Pioneer AVH-P5750DVD, Руководство по обслуживанию, Страница: 116 / 212

AVH-P5750DVD/RC
116
1 2 3 4
1 2 3 4
C
D
F
A
B
E
Reproduce DVD-REF-A1 Title 1.
Verify the voltage of the sensing pin.
Check 1 : Are all power supply voltages?
No.
1
2
3
4
5
6
7
8
Verification location
VD8_1/2 - PGND_1/2
VDD33 - DGND1/2/3
SRVDD - DGND1/2/3
VCC5_1 - AGND1
AVCC5_1 - AGND1
VCC33_1/2 - DGND1/2/3
VCC33_3/4/5 - DGND1/2/3
VCC15_1/2 - DGND1/2/3
Rated value
8.0 0.4
3.3 0.15
3.3 0.15
5.0 0.1
5.0 0.1
3.3 0.15
3.3 0.3
1.5 0.1
Unit
V
V
V
V
V
V
V
V
Check 2 : Are all clock operating normally?
Reproduce DVD-REF-A1 Title 1
Check Circuit Diagram .
Checks are to conducted with a GND reference.
If locations listed under "verification location 2", can be verified, there will be no need to perform 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 and other
defects in the applicable line, vicinity of IC 1802 (Circuit Diagram ) and peripheral components.
GND
Rated Value 1 Rated value 3
Rated Value 2
Clock rated values
1
1
No.
1
2
3
4
5
6
Verification location 1
(Sensing pin)
BECLK
EXTCK
EXTCK
MCK33
DACCLK
DACCLK
Verification location 2
IC1501
IC1501
IC1501
IC1501
IC1851
IC1881 170pin
172pin
172pin
92pin
16pin
3pin
Media
ALL
DVD
CD
ALL
DVD
DVD
Rated value 1
2.3V VCC33
2.3V VCC33
2.3V VCC33
2.2V VCC33
2.0V VCC33
2.3V VCC33
Rated value 2
GND 0.8V
GND 0.8V
GND 0.8V
GND 0.8V
GND 0.8V
GND 0.99V
Rated value 3
27MHz 50ppm
36.8640MHz 300ppm
33.8688MHz 300ppm
33.898MHz 300ppm
33.8688MHz 300ppm
33.8689MHz 300ppm