Sony CDX-848X - Compact Disc Changer System, Service Manual

Page: 31 / 52

31
CDX-848X
IC201 LA6576L-TE-L
INPUT
FWD
REV
VCC2
VLO–
VLO+
VO4+
VO4–
VO3+
VO3–
VO2+
VO2–
VO1+
VO1–
VCC1
VIN1
VIN1–A
VIN1+A
VIN1–B
S-GND
MUTE2
MUTE1
VIN4
VIN4–
VIN4+
VREF-IN
VIN1 (VREF)-SW
VREF-OUT (CH1)
REG-OUT
REG-IN
VIN3+
VIN3–
VIN3
VIN2+
VIN2–
VIN2
VIN1+B
OUTPUT
CONTROL
+
–
+
–
+
–
+
–
+
–
+
–
LEVEL
SHIFT
CH2-4
MUTE
THERMAL SHUT DOWN
CH1
MUTE
VIN1/VREF
SWITCH
5VREG
3
4
5
6
7
8
9
2
1
LEVEL
SHIFT
LEVEL
SHIFT
10
11
14
LEVEL
SHIFT
AMP-A
AMP-B
+
–
15
16
17
18
23
19
34
35
36
+
–
+
–
+
–
+
–
25
24
22
21
20
33
32
31
30
29
28
+
–
27
26
12
13
–MAIN Board –
IC102 MSM51V17400D-10TK-FS
DATA BUS
DQ3
DQ4
VSS
4
DQ2 3
A10 8
A0 9
A1 10
A2 11
A3 12
VSS 13
NC
6
NC 7
DQ1 2
VCC 1 26
23
24
25
A8
NC
19
20
A9 21
A6
A7
17
18
A4
A5
15
VSS 14
16
ROW
DECODERS
WORD
DRIVERS
MEMORY
CELLS
INTERNAL
ADDRESS
COUNTER
TIMING
GENERATOR
TIMING
GENERATOR
SENSE
AMPLIFIERS
COLUMN
DECODERS
I/O
SELECTOR
WRITE
CLOCK
GENERATOR
INPUT
BUFFERS
ADDRESS BUFFERS
ROW
COLUMN
22
OUTPUT
BUFFERS
OE
CAS
REFRESH
CONTROL
CLOCK
WE
5 RAS