Sony XR-C8220, Service Manual

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IC502 BA3918-V3 IC602 BA8270F-E2
+
–
+
–
+
–
+
–
OVER VOLTAGE
PROTECT
REGULATOR
1
2 3 4 5 6 7 8 9 10 12 11
NC
MODE2 MODE1
STB
VDD
AMP
VCC ANT
COM
AM
FM
GND
1
2
3
4
5
6
7 8
9
10
14
13
12
11
BUS ON
SWITCH
RESET
SWITCH
BATTERY
SWITCH
BUS ON
RST
BATT
CLK
VREF
DATA
GND
VCC
RST
BUS ON
CLK IN
BU IN
DATA IN
DATA OUT
IC650 MSM6656A-687GS-KR1 (US model)
IC650 MSM6656A-689GS-KR1 (E model)
12
11
10
9
3
4
8
7
6
5
2
1
13
14
15
16
20
19
18
17
21
22
23
24
TIMMING
CONTROLLER
BEEP TONE
GENARATOR
MELODY
GENARATOR
17 BIT
ADDRESS
COUNTER
17 BIT
MULTIPLEXER
I/O
INTERFACE
ADDRESS
&
COMMAND
CONTROLLER
1M BIT ROM
EDITING ROM &
ADDRESS ROM
CONTAINS 22KBIT
DATA
CONTROLLER
ADPCM
SYNTHESIZER
PCM
SYNTHSIZER
12 BIT
DAC
LPF OSC
8
12
7
CH
RESET
NC
NC
NC
NAR
AOUT
GND
BUSY
16/SD
15/SI
14
VDD
XT
XT
NC
CMD
NC
NC
ST
10
11
12/PoRT0
13/PoRT1