Sony HCD-M70 Service Manual ▷ View online
HCD-M70
30
30
6-16. PRINTED WIRING BOARD – POWER Board –
•
See page 17 for Circuit Boards Location.
D902
D-5
D903
D-5
D904
C-5
D905
C-5
D906
C-6
D907
C-5
D908
D-6
D909
D-5
D910
C-3
D911
B-3
D912
C-3
D913
B-3
D915
B-5
D917
B-6
D918
C-4
Q901
B-6
Q902
C-4
Q903
B-5
• Semiconductor
Location
Ref. No.
Location
MAIN POWER
TRANSFORMER
∗
SUB POWER
TRANSFORMER
(SP)
(EXCEPT SP)
(EXCEPT SP)
(SP)
MAIN BOARD
CNP101
D
1
2
1
8
(US, CND)
(EXCEPT SP)
(SP)
POWER BOARD
LINE
FILTER
EXCEPT
US, CND
EXCEPT
US, CND
(AC IN)
1
2
(CHASSIS)
(US, CND)
(US, CND)
G901
1-684-234-
11
(11)
–1 –2
VOLTAGE
SELECTOR
S901
110V – 120V
220V – 240V
A
B
C
D
E
F
G
H
1
2
3
4
5
6
(Page
24)
HCD-M70
31
31
Q901
Q903
D917
C911
D915
C920
R902
C917
R904
R905
C918
C910
D904
D902
D908
D907
D909
F904
F901
C925
R910
JW904
JW905
JW907
CN901
CN101
D905
D903
D906
D910
D911
D913
D912
Q902
T902
T901
RY901
JW906
JW903
JW908
JW911
LF901
R909
G901
D918
S901
F902
F903
JW902
JW901
STC352-OY
STC352-OY
1SS133T-77
47
16V
MTZJ-T-77-6.8C
220
25V
25V
4.7k
220
16V
16V
4.7k
47k
10
50V
0.022
1N5401
1N5401
2A02M
2A02M
2A02M
0.01
250V
250V
220
2P
8P
1N5401
1N5401
2A02M
1SS133T-77
1SS133T-77
1SS133T-77
1SS133T-77
2SC2785
3.3M
1/2W
1/2W
MTZJ-T-77
-6.2B
0.8A
250V
250V
0.4A
250V
250V
∗
∗
BACKUP5V
RELAY-ON
COM8V
+14V(S2)
S1-GND
(CHASSIS)
COM
230
115V
230V
COM
COM
120
(SP)
115V
230V
230V
120V
COM
S2-GND
+16V(S1)
-16V(S1)
Q901,903
+5V REGULATOR
POWER ON/OFF
RELAY DRIVE
MAIN POWER
TRANSFORMER
∗
NOT REPLACEABLE:
BUILT IN TRANSFORMER
SUB POWER
TRANSFORMER
(US,CND,MX)
AEP,UK,
KR,TH,AUS
(SP)
(US,CND,MX)
AEP,UK,
KR,TH,AUS
∗
F904
2A 125V (US,CND,MX)
(AEP,UK,SP,KR,TH,AUS)
(SP)
(EXCEPT SP)
(SP)
(SP)
(EXCEPT SP)
∗
(US,CND,MX)
F901
0.8A 125V
T0.4A 250V
(AEP,UK,KR,TH,AUS)
(EXCEPT US,CND)
FILTER
LINE
(US,CND)
(EXCEPT US,CND)
(US,CND)
110V-120V
220V-240V
VOLTAGE
SELECTOR
(SP)
(EXCEPT SP)
(SP)
(EXCEPT SP)
(SP)
(AC IN)
-1
-2
T2A 250V
6-17. SCHEMATIC DIAGRAM – POWER Board –
The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
Les composants identifiés par une marque
0
sont
critiques pour la sécurité.
Ne les remplacer que
par une pièce portant le numéro spécifié.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER (FM/AM)
no mark : TUNER (FM/AM)
(Page 23)
HCD-M70
32
32
THERMAL
SHUTDOWN
BIPOLAR
TRANSCONDACTANCE
INPUT STAGE
STANDBY/
MUTE
BOOST-
STRAP
MOS GAIN &
LEVEL SHIFTING
STAGE
STBY
-GND
IN–
IN+
IN+ MUTE
NC
BOOSTSTRAP
+VS
–VS
STBY
MUTE
NC
NC
+PWVS
OUT
–PWVS
14 15
12
13
10
11
8 9
6
7
5
3
4
1 2
+
–
MOS
OUTPUT
STAGE
SHORT
CIRCUIT
PROTECTION
APC PD AMP
APC LD AMP
RF SUMMING AMP
RF EQ AMP
FOCUS ERROR AMP
TRACKING
ERROR AMP
VC BUFFER
VCC
50µA
VEE
VEE
VC
VC
VC
VC
VC
VC
VC
VC
VC
VC
VCC
VEE
VCC
VEE
VEE
VC
VCC
LC/PD
LD ON
HOLD SW
AGC CONT
RFTC
RF I
RF O
RFE
TE
FE
RF BOT
HOLD
AGC VTH
LD
PD
A
B
C
D
VEE
F
E
VC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
+
–
–
+
–
–
+
–
–
+
–
–
+
–
–
+
–
+
–
–
VCC
+
–
–
+
–
–
+
–
–
+
–
+
–
–
+
–
–
+
–
–
+
–
–
+
–
LEVEL SHIFT
INTERFACE
INTERFACE
INTERFACE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
20
21
22
23
24
25
26
27
28
19
18
17
16
15
F
R
R
F
F
R
R
F
R
R
F
F
MUTE
THERMAL
SHUTDOWN
VREFOUT
VREFIN
POWVCC
CH1FIN
CH1RIN
CH2FIN
CH2RIN
CH2OUTR
CH2OUTF
CH1OUTR
CH1OUTF
CAP
A
IN1
CAP
A
IN2
GND
PRFVCC
MUTE
POWVCC
CH4SIN'
CH4SIN
CH4BIN
CH3FIN
CH3RIN
CH3OUTR
CH3OUTF
CH4OUTR
CH4OUTF
CAP
A
IN3
GND
• IC Block Diagrams
– CD Board –
– CD Board –
IC101
CXD2587Q
IC102
BA5974FP-E2
IC103
CXA2568M-T6
– MAIN Board –
IC101, 201
TDA7296
TE
RFDC
CE
IGEN
AVSS0
ADIO
AVDD0
CLTV
FILO
AVSS3
VSS
AVDD3
DOUT
VDD
PCO
FILI
ASYO
ASYI
RFAC
BIAS
SSTP
DFCT
MIRR
MDP
LOCK
FOK
SFDR
VSS
TEST
FRDR
FE
VC
VC
COUT
SE
XTSL
TES1
SRDR
TFDR
FFDR
TRDR
TRDR
2
1
70
71
68
69
66
67
64
65
62
61
63
73
74
72
75
76
77
78
79
80
4
XRST
3
SQCK
SQSO
5
9
8
7
6
56
60
53
54
55
59
57
58
51
52
48
49
50
47
44
45
46
43
41
42
XLAT
CLOK
SENS
SYSM
DATA
XUGF
XPCK
GFS
C2PO
WFCK
10 11 12 13 14 15 16 17 18 19 20
21
22
23
24
25
26
32
33
30
31
36
37
34
35
39
40
38
28
27
29
SPOA
ATSK
SCLK
VDD
SCOR
SPOB
XLON
XTAI
XVDD
EMPH
AVDD1
AOUT1
AIN1
XTAO
XVSS
XVSS
AIN2
AOUT2
AVDD2
RMUT
LOUT2
LOUT1
BCK
LRCK
PCMD
LMUT
AVSS1
AVSS2
CPU
INTERFACE
SERVO AUTO
SEQUENCER
SERIAL IN
INTERFACE
OVER SAMPLING
DIGITAL FILTER
3rd ORDER
NOISE SHAPER
PWM
PWM
EFM
DEMODULATOR
TIMING
LOGIC
DIGITAL
OUT
D/A
INTERFACE
DIGITAL
PLL
ASYMMETRY
CORRECTOR
CLOCK
GENERATOR
MIRR, DFCT,
FOK
DETECTOR
DIGITAL
CLV
SUBCODE
PROCESSOR
SERVO
INTERFACE
SERVO DSP
FOCUS
SERVO
SERVO
TRACKING
SERVO
SLED
SERVO
PWM GENERATOR
FOCUS PWM
GENERATOR
TRACKING
PWM GENERATOR
SLED PWM
GENERATOR
16K
RAM
ERROR
CORRECTOR
INTERNAL BUS
A/D
CONVERTER
OPERATIONAL
AMPLIFIER
ANALOG SWITCH
33
HCD-M70
GND
OUT1
VCTL
VZ1
VZ2
IN1
IN2
VCC1
VCC2
OUT2
5
6
7
8 9 10
1
2 3
4
DRIVER OUT
PRE DRIVER
LOGIC
SWITCH
TSD
BIAS
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
30
29
1
2
CCB
INTERFACE
CONTROL
CIRCUIT
LOGIC
CIRCUIT
CONTROL
CIRCUIT
26
+
–
25
24
+
–
23 22 21
20 19 18 17
+
–
+
–
–
5
+
–
–
6
7
+
–
–
8
9
10
11 12 13 14
+
–
–
+
–
3
LOUT
LBASS2
LBASS1
LTRE
LIN
LSELO
L4
L3
L2
L1
15
NC
VSS
4
TEST
VDD
ROUT
RBASS2
RBASS1
RTRE
RIN
RSELO
R4
R3
R2
R1
16
NC
CL
DI
CE
28
+
–
RVREF
+
–
LVREF
VREF
27
NC
– CONTROL Board –
IC320
KA3082
IC323
LC75342
IC326
BU1924F-E2 (AEP, UK)
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