Sony WM-EX2000 User Manual

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6-5. IC BLOCK DIAGRAMS
IC301 TA2123AF
+
–
+
–
AGC
DET
BST
PWC
PWB
–
+
PWA
+
–
+ –
+ –
+ –
TOMP
RIPPLE
FILTER
MIX
MTL DRV
VREF
PREA
PREB
BEEP
SW
36 35 34 33 32 31 30 29 28 27 26 25
24
22
21
20
19
18
17
16
15
14
13
23
12111098765321 4
48
47
46
45
44
43
42
41
40
39
38
37
AGC DET AGC IN BST NF BST OUT PW IN C LPF EQ L PW NF L PW IN L PW IN R PW NF R EQ R
RF IN
PW GND
PW OUT R
PW OUT C
PW OUT L
VCC
BASE
RF OUT
GND
AMS DET
AMS MIX
AMS IN
VREF IN
PRE GND
M/N SW
PRE SW
F/R SW
BST SW
PW SW
NT SW
AMS OUT
BEEP
MT TC
CAMP SW
AMS IN
PRE NF-R
PRE OUT-R
MTL DRV-R
MTL DRV-L
PRE OUT-L
PRE NF-L
REV IN-L
REV IN-R
REF OUT
FWD IN-R
FWD IN-L
IC701 XC6383C251ML
+
–
+
–
BIAS
CIRCUIT
WEIGHT
G2 G1 V/I
ACH BLOCK
GM
SUN
BCH BLOCK (SAME ACH)
14 13 12 11 10 9 8
1 2 3 4 5 6 7
GND IREF VREF INB OUT B DC B DET B
VCC SW VEXT IN A OUT A DC A DET A
IC303 NJM2185AV
IC302 NJM2190V
9
LIN
VREF C3
GND
C4
MODE
ROUT REFIN
WOUT
C2
V+/2 V+
LOUT
C1
WIN
RIN
10111213141516
1 52 3 4 6 7 8
–
+
EXT
FILTER
MATRIX
MODE
CONTROL
BIAS
BYPASS
BYPASS
SRS
SRS
3
1
BUFFER
PWM/PFM CONTROL
OSC 50/100/180 kHz
VLx LIMITER
PHASE COMP
V REF
SLOW START
2
Lx
Vss
V OUT

Sony WM-EX2000 Specifications

General

Brand	Sony
Model	WM-EX2000
Category	Cassette Player
Language	English