Sony HCD-EX6 / HCD-EX6T / HCD-EX8 / HCD-EX8T / HCD-EX9 / HCD-EX9T / MHC-EX6 / MHC-EX6T / MHC-EX8 / MHC-EX8T / MHC-EX9 / MHC-EX9T Service Manual ▷ View online
HCD-EX6/EX6T/EX8/EX8T/EX9/EX9T
37
6-18. PRINTED WIRING BOARD – TAPE DECK Section (HCD-EX6T/EX8T/EX9T) –
•
: Uses unleaded solder.
• See page 18 for Circuit Boards Location.
1
A
B
C
D
E
2
3
4
5
6
7
J
MAIN-AMP
BOARD
CN605
(EX6T/EX8T/EX9T)
B C E
B C E
18
1
28
9
1
4
5
8
1
4
5
8
TP501
TP502
TP503
TP504
TP505
TP506
TP507
TAPE
MECHANISM
DECK
TP508
TP509
Q501
Q502
L501
R501
R502
R503
R504
R505
R506
R507
R508
R509
R510
R51
1
R512
R513
R514
R515
R516
R517
R518
R519
CN501
CN502
R520
R521
R522
R523
R524
R525
R526
R527
R528
R529
R530
R531
R532
R533
R534
R535
R536
R537
R538
R539
C501
C502
C503
R540
C504
R541
C505
C506
R543
R544
C509
R545
R546
C510
C51
1
C512
C513
C514
C515
C546
C517
C519
C520
C521
C522
C523
C524
C525
REC PB
-4
-2
-3
-1
S501
(REC/PB)
C526
C527
C528
C529
C530
C531
C532
C533
C534
C535
C536
C537
C538
C539
C540
C542
C543
C545
C516
C547
C548
C549
JW501
JW502
JW503
JW504
JW505
JW506
JW507
JW508
JW509
JW510
JR501
JR502
JR503
ET501
IC501
IC502
DECK BOARD (HCD-EX6T/EX8T/EX9T)
11
(11)
1-881-324-
(Page 31)
HCD-EX6/EX6T/EX8/EX8T/EX9/EX9T
38
• IC Block Diagrams
IC101 LC786950T-US-H (BD74 Board)
C2F (LRSY)
60
FSEQ (DATACK)
59
DEFECT (DATA)
58
TEST1
57
AD_DATA (STDATA)
56
AD_BCK (STCK)
55
AD_LRCK (STREQ)
54
TEST0
53
CONT0
52
CONT1
51
CONT2
50
INTB1
49
INTB0
48
RESB
47
DO
46
DI
45
CL
44
CE
43
DVSS
42
DVDD
41
FDO
22
AV
D
D
21
TDO
23
SLDO
24
SPDO
25
VVSS1
26
PDOUT1
27
PDOUT0
28
PCKIST
29
VVDD1
30
CONT5 (M-MUTE)
31
LIMIT
-SW (CONT3)
32
STREQ (DEFECT)
33
STCK (FSEQ)
34
STDA
TA
(C2F)
35
DVDD
36
DVSS
37
DVDD15
38
VVDD3
39
VVSS3
40
SLCO
80
LR
VSS
79
RCHO
78
LRREF
77
LCHO
76
LR
VDD
75
XVDD
74
XIN
73
XOUT
72
XVSS
71
CONT4
70
DOUT
69
DVDD
68
DVSS
67
DVDD15
66
PCMREQ
65
PCMDA
TA
64
PCMBCK
63
PCMLRSY
62
DVDD
61
EFMIN 1
RFOUT 2
LPF 3
PHLPF 4
AIN 5
CIN 6
BIN 7
DIN 8
SLCISET 9
RFMON 10
VREF 11
JITTC 12
EIN 13
FIN 14
PCNCNT 15
TE 16
TEIN 17
LDD 18
LDS 19
AVSS 20
LPF
CLOCK
GENERATOR
8FS DIGITAL FILTER/
1BIT DAC
SLICE
LEVEL
CONTROL
RF
SIGNAL
PROCESSOR
MONITOR
INTERPOLATION MUTE
ERROR CORRECTION
SERVO
CONTROL
CD PLL
AUDIO CONTROL
MUTE/DE-EMPHASIS/
ATTENUATION CONTROL/
BASS/TREBLE/
HFC FILTER
SYNCHRONIZATION
DETECTION
EFM
DEMODULATION
MP3/PCM OUTPUT CONTROL
STREAM CONTROL/AUDIO INPUT
MEMORY I/F
AUDIO OUTPUT
CONTROL
JITTER
APC
D/A
A/D
VREF
TES, HFL,
DEFECT
PORT CONTROL
DOUT CONTROL
SUBCODE
DECODER
DECODER
TEXT
DECODER
ROM
DECODER
SRC
MP3, WMA, AAC
DECODER
MEMORY
1M BIT
MCU
I/F
PLL3
MP3
ENCODER
HCD-EX6/EX6T/EX8/EX8T/EX9/EX9T
39
1
2
3
4
5
6
7
29
9
10
11
12
13
13
14
28
27
26
24
23
22
21
20
19
18
17
16
15
25
LEVEL
SHIFT
LEVEL
SHIFT
THERMAL
SHUT-DOWN
REGULATOR
REGULATOR
BIAS TRAP
LEVEL
SHIFT
MUTE
LEVEL
SHIFT
D.BUFF
D.BUFF
D.BUFF
GND
30 GND
IN4
IN4’
BIAS
VCC
VCC
IN3’
IN3
VO3+
VO3–
VO4–
VO4+
RESETt
OPIN
VO1–
REGB
VO1+
IN1
RESET
REGOUT
MUTE
GND
8
GND
IN2’
IN2
VO2+
VO2–
GND
OPOUT
D.BUFF
D.BUFF
D.BUFF
D.BUFF
D.BUFF
REGULA
TOR
VCC
VCC
IC301 BA5826HFP-E2 (BD74 Board)
IC101 STK433-070-S-E (MAIN-AMP Board (1/2)) (HCD-EX9/EX9T only)
–PRE
1
–VCC
2
+VCC
3
RIN–
12
RIN+
11
LIN+
15
ST
-BY
13
LIN–
14
RO+
4
RO–
5
LO+
6
LO–
7
+PRE
8
SUB
9
GND
10
BIAS CIRCUIT
PRE DRIVER
CH1
PRE DRIVER
CH2
–
+
+
–
HCD-EX6/EX6T/EX8/EX8T/EX9/EX9T
40
FM ANT
30
GND4
29
SD ADJ
27
L2
26
FLL
CAP
28
L1
24
GND3
23
VREF3(4.3V)
25
DO
21
DI
20
VREF2(3.3V)
22
CL
19
ST
ADJ
17
CLK IN
16
CE
18
AM REF
2
GND AM
4
VREF1(4.3V)
5
AM Vt
3
AM AGC
7
GND1
8
MPX OUT
6
R-OUT
10
VCC LOW
11
L-OUT
9
AM LCF
12
ST
OUT
14
VCC
15
SD OUT
13
AM ANT
1
OSC CAP
LOCAL
OSCILLATOR
TUNING
SYSTEM
GND
REF. OSC
FLL
DIVIDER
AGC DET
BPF
DEMODULATOR
STEREO
DECODER
LDO
STATE MACHINE
POWER
MANAGEMENT
DE-EMPHASIS
STEREO
BLEND
AUDIO AMP
IMAGE
DET
ANT CAP
ST OUT
SD OUT
LNA
LNA
IC102 STK433-870-E (MAIN-AMP Board (1/2)) (HCD-EX8/EX8T only)
STANDBY
CIRCUIT
IC1
IC2
–PRE
1
–VCC
2
HI-LO+
4
+VCC
3
HI-LO–
5
HI-RO+
HI-RO–
6 7
+PRE
8
9
GND
10
SUB
HI-LIN–
12
ST
-BY
13
HI-LIN+
11
HI-RIN–
14
HI-RIN+
15
LOW
-LIN–
16
LOW
-LIN+
17
22
LOW
-RO+
LOW
-RO–
23
LOW
-RIN+
18
LOW
-RIN–
19
20
LOW
-LO+
LOW
-LO–
21
+
–
–
+
–
–
STANDBY
CIRCUIT
+
–
–
+
–
–
IC801 LV23401V-TLM-H (MAIN-AMP Board (1/2))
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