Pioneer AVIC-F910BT Service Manual page 50

1
QQ
Check 5: 27 MHz Normal?
3 7 63 1515 0
<Outline> Each clock is created inside the IC1501 using the 27 MHz master crystal oscillator (X1501).
A
OSCO
X1501
27 MHz
OSCI
crystal
B
<Check method> Turn the power on, and check with DGND being the reference.
In case of NG, check the applicable line, periphery of IC1501,
soldering of the peripheral components and defective components.
NO. Check point
2 IC1501 169pin
C
TE
L 13942296513 Specification
value
GND
Fig 5.2: Clock specification value
Side A
D
E
www
Fig 5.3: 27 MHz check point
F
50
1
http://www.xiaoyu163.com
2
IC1501
DVD-LSI
VCC33
Fig 5.1: Clock configuration
Module No.
ALL
x ao
y
. i
AVIC-X910BT/XS/UC
2
http://www.xiaoyu163.com
3
8
VCC12
Specification value
Unit
27 MHz
ppm
± 50 ppm
Q Q
3 6 7 1 3
u163
.
3
4
2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
IC1501 158pin
DGND1
m
co
4
9 9
2 8 9 9