Sony CDX-4480ESP - Am/fm Compact Disc Changer, Руководство по обслуживанию

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IC4 MB814400C-70PFTN IC601 BA6195FP-YT2
IC7 BA6797FP-E2
WRITE
CLOCK
GENERATOR
DATA INPUT
BUFFER
DATA OUTPUT
BUFFER
COLUMN
DECODER
SENSE AMP
I/O GATE
4M BIT
MEMORY
CELL
ROW
DECODER
ADDRESS
BUFFER
PRE-
DECODER
REFRESH
ADDRESS
COUNTER
BOARD
BIAS
GENERATOR
MODE
CONTROL
CLOCK
GENERATOR
1
CLOCK
GENERATOR
2
18
24
25
26
17
16
15
14
5
4
1
2
3
9
10
11
12
13
23
22
DQ1
DQ2
WE
RAS
A9
A0
A1
A2
A3
VCC
VSS
DQ4
DQ3
CAS
OE
A8
A7
A6
A5
A4
+ –
+ –
+
–
1
OPOUT
20
GND
25
OPIN–
24
OPIN+
2
NC
3
NC
4
BIAS
5
DRIN'
6
DRIN
23
NC
22
MUTE
21
NC
DRIVER
MUTE
7
NC
8
NC
9
NC
10
NC
11
NC
12
D
ROUT–
+ –
13
D
ROUT+
LEVEL SHIFT
IN
+ –
THERMAL
SHUT DOWN
19
GND
14
NC
18
NC
16
NC
15
NC VCC
17
1 2 3 4 5 6 7 8 9 10 11 12 13 14
OUT1-A
OUT1-B
PRE-
OUT1
IN1 (–) IN1 (+)
REG-B
REG-
OUT
BIAS-
IN
MUTE IN2 (–) IN2 (+)
PRE-
OUT2
OUT2-B OUT2-A
IN4 (–)
PRE-
OUT4
IN4 (+)
VCC
VCC
OUT3-B
GND
IN3(–)
GND
IN3(+)
PRE-
OUT3
OUT4-A OUT4-B OUT3-A
15 16 17 18 19 20 21
VCC
VCC
22 23 24 25 26 27 28
LEVEL
LEVEL
IN
IN
+ –
+ –
SHIFT
SHIFT LEVEL SHIFT
IN
+ –
LEVEL
VCC/2 VCC/2 VCC/2 VCC/2
VCC/2 VCC/2 VCC/2 VCC/2
SHIFT
IN
+ –