Sony CMT-EH12 / HCD-EH12 Service Manual ▷ View online
HCD-EH12
25
25
HCD-EH12
7-11. SCHEMATIC DIAGRAM – PANEL Board –
•
See page 17 for Waveforms.
•
See page 28 for IC Pin Function Description.
R718
R785
R713
R742
R743
R744
R746
R750
R762
R765
R745
R787
R704
R706
R705
R703
R756
R709
R776
R778
R772
R771
R758
R717
R735
R707
R708
R716
R715
R749
R701
R710
R702
R725
R712
R722
R719
D701
Q702
C703
Q703
LCD702
R784
Q705
Q706
R711
R728
R767
C704
R721
Q701
R731
R730
R757
R727
R736
R734
R779
R726
R751
R763
R764
JW701
R732
R733
R770
R754
JW700
R768
R777
R775
D702
R714
R761
R760
SW716
SW715
SW714
SW713
SW711
SW712
R748
SW701
SW704
SW705
SW703
SW702
CN799
IC703
X702
R723
C701
C702
C705
C706
C707
C708
C709
C710
C711
C712
C713
C714
C715
C717
C718
C719
C720
C722
C724
C731
C732
C734
C735
C742
C743
Q704
L702
L701
C716
Q707
LED701
CNA750
SW750
R755
X701
R739
R738
SW700
R766
R753
R759
C733
IC701
LED702
JR715
C
741
R781
1k
10k
10k
1k
1k
2.2k
2.2k
1k
10k
4.7k
2.2k
47k
1k
1k
1k
4.7k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
4.7k
100
10k
4.7k
220k
1k
UDZS3.6B
2SC3052F
100
6.3V
2SC3052F
LIQUID CRYSTALDISPLAY
100k
2SC3052F
2SC3052F
22k
10k
220k
470
6.3V
470
2SA1235F
10k
10k
100k
0
0
1k
1k
100k
100k
22k
22k
47k
47k
47k
10k
10k
470
47
MC2836
10k
47k
100k
47k
10P
RPM7240-H18
4.19MHz
2.2k
0.1
0.01
0.01
0.1
1000p
47p
1000p
0.22
0.1
0.1
47p
1000p
1000p
1000p
1000p
0.047
1000p
4700p
47p
0.1
18p
1000p
1000p
220p
220p
RT1N441C
0
0
0.1
2SC3052F
SELU2B10A-S
2P
0
32.768Hz
10k
10k
10
100
100
22p
MB90802-107
SLR-342VRT32
470
220p
P66
SEG16
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
SEG23
SEG24
SEG25
SEG26
SEG27
SEG28
SEG29
SEG30
SEG31
SEG16
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
SEG23
SEG24
SEG25
SEG26
SEG27
SEG28
SEG29
SEG30
SEG31
COM0
COM1
COM2
COM3
COM0
COM1
COM2
COM3
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SI
SC
SO
O-TU-CE
O-TU-CE
O-TU-DI
O-TU-DI
O-TU-CK
O-TU-CK
I-TU-ANSD
I-TU-ANSD
I-TU-DO
I-TU-DO
I-ACK-MP3
I-ACK-MP3
I-CD-SCOR
I-CD-SCOR
I-REQ-MP3
I-REQ-MP3
O-CD-XTACN
O-CD-XTACN
I-TP_STATE
I-TP_STATE
I-P-MONI
I-P-MONI
P65
RST
MD0
MD2
RST
SC
SI
SO
P65
P66
MD2
MD0
10k
P24
P25
P27
VCC
VSS
A
V
CC
P
7
6
AV
S
S
VS
S
MD2
MD1
MD0
RSTX
V3
COM0
COM1
SEG0
SEG1
VCC
VSS
SEG2
SEG3
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
S
EG
16
S
EG
17
S
EG
18
S
EG19
V
CC
V
S
S
X1
X
0
O-AMP-ON
O-TU-CE
O-POWER
I-P-MONI
VSTBY
I-TP_STATE
I-TU_ANSD
O-FUNC-SD
O-TU-CK
U-GND
O-TU_DI
I-TU-DO
O-CD-CLK
O-CD-XLAT
O-CLK-MP3
I-CD-SENS
I-CD-SCOR
I-REQ-MP3
O-CD-XTACN
I-ACK-MP3
O-REQ-MP3
O-XLAT-MP3
O-CD-CMD
I/O-DATA-MP3
O-DR-MUTE
S
EG
31
S
EG
30
S
EG
29
S
EG
28
S
EG
27
S
EG
26
S
EG
25
S
EG
24
S
EG
23
S
EG
22
S
EG
21
S
EG
20
P26
SO3
SC3
SI3
TMCK
IC0
IC1
OCU0
OCU1
X0A
X1A
LED0
LED1
LED2
LED3
LED4
LED5
LED6
LED7
TIN0
TIN1
TIN2
PPG1
SI0
SO
0
SI1
A
N
0
AN
1
A
N
2
A
N
3
AN
4
AN
5
AN
6
A
N
7
IN
T3
SC
1
S
O1
SI2
S
C
2
SO
2
V2
V1
V0
COM2
COM3
SC0
SYSTEM CONTROLLER
RESET SWITCH
Q701-703
+4V REGULATOR
LED DRIVE
(LCD BACK LIGHT)
(NC)
REMOTE CONTROL RECEIVER
CD LID
OPEN/CLOSE
DETECT
Q705,706
VOLTAGE DETECT
CD
TUNER
BAND
FUNCTION
DISPLAY
+
-
DSGX
ROTARY ENCODER
VOLUME
STANDBY
+
TUNING
TUNING
-
SEG4
CNS702
25P
(Page
21)
HCD-EH12
26
26
HCD-EH12
IC402
BA5947FM-E2
•
IC Block Diagrams
– CD Board –
IC401
BD3881FV
1
LEVEL SHIFT
MUTING
D
15
16
+
–
+
–
D
D
17
18
D
19
20
VREF
21
22
23
24
25
26
27
28
PREVCC
OPOUT
OUTVREF
CH4CAPA
CH4IN
CH3FIN
CH3RIN
GND
MUTE
POWVCC
CH3OUTF
CH3OUTR
CH4OUTF
CH4OUTR
OPIN
–
2
OPIN+
INTERFACE
14
13
D
12
11
D
10
9
8
7
6
CH2FIN
CH2RIN
GND
5
4
CH1FIN
CH1RIN
VREFIN
POWVCC
CH2OUTR
CH2OUTF
CH1OUTR
CH1OUTF
INTERFACE
D
D
3
SW
INTERFACE
IC301
LA4631-E
– MAIN Board –
OUT1
VCC
OUT2
IN2
PRE GND
IN1
P.
P.
ST
ANDBY
2
FIL
TER
1
3 4
5
6
7
8
11
13
POWER GND
10
9
12
PRE
DRIVE AMP
INPUT
AMP
STANDBY
SWITCH
THERMAL
SHUT DOWN
PROTECTOR
POP NOISE
PREVENTION
CIRCUIT
REFERENCE
AMP
RIPPLE
FILTER
OUTPUT
AMP
PRE
DRIVE AMP
INPUT
AMP
OUTPUT
AMP
28
REC1O
27
REC1N
26
REC2N
25
REC2O
24
INC2
23
INC1
22
INB2
21
INB1
20
INA2
19
INA1
18
OUT1
17
BAS1
16
OUT2
15
BAS2
BASS
BASS
13
CONT
14
VEE
12
VDD
11
TRE2
10
TRE1
TREBLE
TREBLE
7
VOLIN1
8
VOLIN2
9
GND
VOLUME
VOLUME
6
PB1O
LOGIC
CONTROL
5
PB2O
4
PB2N
1
PB1N
2
PB1P
3
PB2P
27
HCD-EH12
IC801
LV23003VA
1
AM RF-IN
3
FM-MIX
2
REG
6
VCC1
4
GND1
AM
RF
AM
MIX
AM
DET
AM
IF
FM
DET
FM
IF
SD
FF
VCO
FF
FF
ST
TRIG
STSW
FM
MIX
FM
OSC
AM
OSC
OSC
BUFFER
FM
S-METER
DECODER
PHASE
COMPARATOR
MUTE
PROGRAMMABLE
DIVIDER
REFERENCE
DIVIDER
UNLOCK
DETECTOR
SWALLOW
COUNTER
POWER ON
RESET
DATA SHIFT
REGISTER
LATCH
PHASE
DETECTOE
CHARGE
PUMP
UNIVERSAL
COUNTER
5
AM-MIX
7
AMIF-IN
8
FMIF-IN
9
P-DET
10
P-COMP
11
FM-DET
12
L-OUT
13
R-OUT
14
VSS
FM
RF
36 FM RF-IN
35 GND2
34 FMRF-OUT
33 VCC2
30 BO2
29 BO1
29 BO1
32 FM-OSC
31 AM-OSC
28 LP-OUT
27 LP-IN
27 LP-IN
23 FMDET-OUT
15
CE
16
DI
17
CL
18
DO
22 MPX-IN
19 XIN
20 XOUT
21 VDD
26 PD
25 AGC
25 AGC
24 AMDET-OUT
LOW-PASS
FILTER
AGC
IF
BUFFER
PIROT
DET
CCB
I/F
28
HCD-EH12
•
IC PIN FUNCTION DESCRIPITION
CD BOARD IC201 CXD3014A-201R (CD DSP)
Pin No.
Pin Name
I/O
Description
1
LRCK
O
L/R sampling clock signal output terminal
2
LRCKI
I
L/R sampling clock signal input terminal
3
PCMD
O
Serial data output terminal
4
PCMDI
I
Serial data input terminal
5
BCK
O
Bit clock signal output terminal
6
BCKI
I
Bit clock signal input terminal
7
XTACN
I
Oscillation circuit on/off switch control signal input from the system controller
"L": oscillation stop, "H": self-oscillation
"L": oscillation stop, "H": self-oscillation
8
XRST
I
System reset signal input from the system controller "L": reset
9
VSS
-
Ground terminal
10
IREQ-MP3
O
MP3 data request signal output to the system controller
11
CLOK
I
CD serial data transfer clock signal input from the system controller
12
DATA2
I
MP3 serial data input/output with the system controller
13
XLAT-MP3
I
MP3 serial data latch pulse signal input from the system controller
14
REQ-MP3
I
MP3 data request signal input from the system controller
15
ACK-MP3
O
MP3 acknowledge signal output to the system controller
16
XLAT
I
CD serial data latch pulse signal input from the system controller
17
VDD
-
Power supply terminal (+1.8V)
18
SVSS
-
Ground terminal
19
SVDD
-
Power supply terminal (+1.8V)
20
SENS
O
Internal status (SENSE) signal output to the system controller
21
WFCK
-
Not used
22
XUGF
-
Not used
23
XPCK
-
Not used
24
GFS
-
Not used
25
C2PO
-
Not used
26
SCOR
O
Subcode sync (S0+S1) detection signal output to the system controller
27
VDD
-
Power supply terminal (+1.8V)
28
COUT
-
Not used
29
SVSS
-
Ground terminal
30
SVDD
-
Power supply terminal (+1.8V)
31
MIRR
-
Not used
32
DFCT
-
Not used
33
FOK
-
Not used
34
VSS
-
Ground terminal
35
VDD
-
Power supply terminal (+1.8V)
36
VSS
-
Ground terminal
37
MIRR
-
Not used
38
MDP
O
Spindle motor servo control signal output terminal
39
SSTP
I
Disc inner position detection signal input terminal
40
IOVSS1
-
Ground terminal
41
SFDR
O
Sled servo drive signal (+) output to the coil/motor driver
42
SRDR
O
Sled servo drive signal (-) output to the coil/motor driver
43
TFDR
O
Tracking servo drive signal (+) output to the coil/motor driver
44
TRDR
O
Tracking servo drive signal (-) output to the coil/motor driver
Click on the first or last page to see other CMT-EH12 / HCD-EH12 service manuals if exist.