Read Sony XR-C8220R Service Manual online
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IC650
MSM6656A-687GS-KR1 (TYPE A)
IC650
MSM6656A-688GS-KR1 (TYPE B)
IC650
MSM6656A-689GS-KR1 (TYPE C)
IC650
MSM6656A-690GS-KR1 (TYPE D)
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
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
15/SI
14
VDD
XT
XT
NC
CMD
NC
NC
ST
10
11
12/PoRT0
13/PoRT1
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