Sony HCD-BX2 / HCD-DX2 / HCD-DX2B / MHC-BX2 / MHC-DX2 / MHC-DX2B Service Manual ▷ View online
34
IC703
BA5963S
– MAIN Board –
IC101
BU1924F (AEP, UK models)
ANALOG
DIGIT
AL
RCLK
NC
XO
XI
VSS2
T2
VDD2
T1
QUAL
RDA
T
VREF
MUX
VDD1
VSS1
VSS3
CMP
1
4
3
6
5
8
7
2
14
15
16
13
12 11 10
9
CLOCK
PLL 57kHz
RDS/ARI
COMPARATOR
8th SWITCHED
CAPACITOR
FILTER
ANTI-ALIASING
FILTER
BIPHASE
DECODER
PLL
1187.5Hz
DEFFERENTIAL
DECODER
TEST
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
LEVEL SHIFT
LEVEL SHIFT
LEVEL SHIFT
LEVEL SHIFT
LEVEL SHIFT
LEVEL SHIFT
MUTE
T.S.D
BIAS
BIAS
BIAS
VCC
100
BIAS
BIAS
VCC
VCC
DETECTION
DF REG-OUT
CURRENT
100
100
10K
10K
D
D
D
D
D
D
D
D
D
D
D
D
100
OUT1–
OUT1+
OUT2–
OUT2+
IN2
IN1
VCC
VCC
REG-I
REG-B
REG OUT
IN3-R
IN3-F
OUT3+
OUT3–
GND
OUT4–
OUT5–
OUT4+
OUT5+
IN 5
IN 4
VCC
BIAS IN
GND
GND
MUTE IN
IN6-R
IN6-F
OUT6+
OUT6–
GND
13.3K
13.3K
13.3K
35
IC201
TA8189N
CH2/A CH2/B
NF
VCC
CG
NF
ALC
METAL
OUT
PRE
OUT
OUT
TAPE A
/TAPE B
REC
OUT
OUT
REC
IN
CH1/A CH1/B
NF
GND1
M/H
NF
CH2
CH2
ALC
M/N
CH1
GND
GND
CH1
+
–
+
–
+
–
+
–
A/B
GND
METAL
OUT
PRE
OUT
OUT
MIX
OUT
REC
OUT
OUT
REC
IN
IREF
VREF2
VREF1
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
IC301
M62439SP
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
CONTROL
LOGIC
REC OUT SW
INPUT SW
MONAURAL SW
MUTE
VOLUME CONTROL
Low boost
High boost
REC OUT2
INA2
INB2
INC2
IND2
TONEH2
TONEL2
OUT2
Vss
CONT
VDD
GND
OUT1
TONEL1
TONEH1
IND1
INC1
INB1
INA1
REC OUT1
36
IC502
TC74HC165AP
– FRONT Board –
IC602
BU2092
1
2
3
4
5
6
7
8
9
10
16
15
14
13
12
11
CK
E
F
G
H
QH
D
C
B
A
SERIAL
IN
CLOCK
INHIBIT
SHIFT/
LOAD
GND
QH
VCC
OUTPUT
QH
SERIAL
INPUT
A
B
C
D
CLOCK
INHIBIT
SHIFT/
LOAD
CLOCK
E
F
G
H
OUTPUT
QH
PARALLEL INPUTS
PARALLEL INPUTS
1 2
3
4
5 6 7 8 9
10
16 15 14 13 12 11
CONTROL
CIRCUIT
12 BIT
SHIFT
REGISTER
12 BIT
STORAGE
REGISTER
OUTPUT
BUFFER
(OPEN DRAIN)
17
18
VDD
OE
Q11
Q10
Q9
Q8
Q7
Q6
Q5
Q4
Q3
Q2
Q1
Q0
LCK
CLOCK
DATA
VSS
37
(1)
TOP CABINET SECTION
SECTION 5
EXPLODED VIEWS
Les composants identifiés par une
marque 0 sont critiquens pour la
sécurité.
Ne les remplacer que par une pièce
portant le numéro spécifié.
marque 0 sont critiquens pour la
sécurité.
Ne les remplacer que par une pièce
portant le numéro spécifié.
The components identified by
mark 0 or dotted line with mark
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
Replace only with part number
specified.
• Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
delay should be anticipated when ordering
these items.
• The mechanical parts with no reference num-
ber in the exploded views are not supplied.
• Hardware (# mark) list is given in the last of
the electrical parts list.
NOTE:
• -XX and -X mean standardized parts, so they
may have some difference from the original
one.
one.
• Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts Color Cabinet's Color
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
1
3-703-136-21 SCREW (M3X12)
2
4-229-459-01 EMBLEM
3
4-229-453-01 DOOR, CD
4
4-220-622-01 DAMPER (GRY), GEAR
5
4-229-451-01 HOLDER (A), EJECT
6
4-229-473-01 PLATE, CD DOOR
8
4-229-452-01 CABINET, TOP
9
3-531-576-01 RIVET
4
Front panel section
#1
#1
#18
#5
#5
#5
#5
#6
4
5
5
1
9
8
1
2
6
3
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