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Part 4: Troubleshooting
4-20
● MB40988PFQ<D/A COnverter, IC2200>
● AV9155C <PLL, IC1961>
REFERENCE
CLOCK
CPU
CLOCK
OUTPUT
BUFFERS
2XCPU
CPU
AGND
POWER-DOWN
GND
VDD
14.318MHz
14.318MHz
SCLK20-22
3
14.318MHz
crystal
OE
17
18
10
8
9
12
15
16
14
13
11
19
20
3
2
7
1
6
KBCLK
BUSCLK
FDCLK
COMMCLK
OUTPUT
BUFFERS
PERIPHERAL
CLOCK