HCD-M70 - Sony Audio Service Manual (repair manual). Page 25

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HCD-M70
24
24
6-11. PRINTED  WIRING  BOARDS  – MAIN/JACK Boards –
 See page 17 for Circuit Boards Location.
D302
B-2
D305
C-9
D307
F-7
D308
E-7
D309
C-8
D310
B-3
D311
G-7
D314
E-5
D315
B-10
D316
B-10
D320
B-9
D820
F-6
D821
F-6
IC101
E-9
IC201
F-9
IC304
F-7
IC306
B-5
IC323
B-6
IC324
D-3
IC326
B-9
Q100
C-7
Q200
C-7
Q301
B-8
Q302
B-8
Q303
C-8
Q304
C-9
Q305
E-7
Q306
D-7
Q307
E-6
Q308
E-6
Q309
C-2
Q310
C-9
Q311
C-9
Q312
E-2
Q313
D-2
Q330
C-7
Q341
B-2
Q342
B-2
Q343
B-2
Q344
B-2
Q355
G-7
Q406
D-3
Q407
D-3
Q408
D-3
Q409
D-2
• Semiconductor
Location
Ref. No.
Location
IC306
IC323
IC201
IC101
IC304
IC326
IC324
1-684-231-
11
(11)
(CHASSIS)
(CHASSIS)
(CHASSIS)
(CHASSIS)
(US, CND, MX)
AEP, UK, SP,
KR, TH, AUS
1
5
PHONES
CD SYNCHRO
PLAY MODE
TUNING MODE
S819
REPEAT
FM MODE
S816
S810
DIRECTION
S814
E
CONTROL BOARD
CN804
B
TC BOARD
CN301
17
JACK BOARD
MAIN BOARD
17
16
21
TUNER UNIT
SUPPLIED WITH
THE ASSEMBLED BLOCK
TU1
L
R
AUDIO IN
MD (VIDEO)
L
R
+
+
SPEAKER
IMPEDANCE
USE 6 – 16Ω
C
CONTROL
BOARD
CN806
D
POWER
BOARD
CN101
SJ301
B
C
E
B
C
E
B
C
E
15 14
1
2
15
14
2
1
1-684-232-
11
(11)
A
B
C
D
E
F
G
1
2
3
4
5
6
7
8
9
10
11
(AEP, UK)
16
1
5
8
10
(Page 20)
(Page 26)
(Page 30)
(Page 26)
HCD-M70
25
25
5.3 Vp-p
239 ns
13.6 Vp-p
18.4 
µ
s
67.2 Vp-p
18.4 
µ
s
6
IC101 
w;
 (SCOR) (CD Play Mode)
Approx.
200 mVp-p
• Waveforms
– CD Board –
1
IC103 
qh
 (RFO) (CD Play Mode)
2
IC103 
qf
 (FE) (CD Play Mode)
3
IC103 
qd
 (TE) (CD Play Mode)
4
IC101 
qg
 (WFCK)
5
IC101 
qj
 (XPCK)
7
IC101 
yh
 (XTAI)
qs
Q401 (Collector) (REC Mode)
1.1 
± 
0.2 Vp-p
Approx.
380 mVp-p
5.1 Vp-p
136 
µ
s
5.9 Vp-p
230 ns
13.2 ms
5 Vp-p
3 Vp-p
59 ns
– TC Board –
qa
T401 (REC Mode)
– CONTROL Board –
ea
IC801 
el
 (EXTAL1)
es
IC801 
os
 (TX)
ws
IC326 
qh
 (RCLK) (TUNER Mode) (AEP, UK)
– MAIN Board –
wa
IC326 
qd
 (X1) (TUNER Mode) (AEP, UK)
2.6 Vp-p
30.5 
µ
s
4.4 Vp-p
850 
µ
s
2.8 Vp-p
231 ns
57.6 Vp-p
18.4 
µ
s
qd
T101, 201 (REC Mode)
HCD-M70
26
26
6-12. PRINTED  WIRING  BOARDS  – CONTROL/LOADING/VIDEO Boards –
 See page 17 for Circuit Boards Location.
D304
B-6
D321
A-1
D801
B-2
D802
B-2
IC320
B-6
IC321
C-8
IC801
C-4
IC803
C-3
Q800
B-1
Q801
B-2
Q802
B-4
Q803
B-4
Q804
B-1
• Semiconductor
Location
Ref. No.
Location
IC801
IC320
IC321
IC803
75
80
85
90
95
55
60
65
70
35
40
45
50
30
25
20
15
10
5
100
10
1
10
10
15
18
1
15
20
5
1
+
1
3
1
3
2
1
21
20
SWITCH
BOARD
CN503
G
SWITCH
BOARD
CN502
H
SWITCH BOARD
CN501
F
E
CONTROL BOARD
VIDEO BOARD
MAIN BOARD
CN303
(AEP, UK)
1-684-230-
11
(11)
1-684-235-
11
(11)
CD BOARD
CN101
A
MAIN BOARD
CN302
C
LOADING BOARD
M
1-681-807-
11
(11)
S1
OPEN
CLOSE
S1
DISC TRAY OPEN/CLOSE
DETECT
OPTICAL
DIGITAL OUT (CD)
(LOADING)
1
3
1
3
A
B
C
D
E
1
2
3
4
5
6
7
8
9
(Page 24)
(Page 24)
(Page 18)
(Page 28)
(Page 28)
(Page 28)
HCD-M70
27
27
CN809
D801
CN806
L304
L303
L302
R890
R891
R844
R845
R849
CN801
R509
R510
C818
C817
C816
R808
R807
R806
R805
R803
R802
R801
R809
R810
R811
R812
R813
R814
R815
R816
R817
R818
R819
R820
R821
R822
R823
R824
R825
R826
R828
R829
R827
R830
R903
R804
D802
R901
Q803
Q802
C804
C803
JR806
L301
JR801
R892
R894
R895
R896
R897
R898
R899
R900
R881
R882
R883
R884
R885
R886
R887
R888
R905
C830
R904
C825
R906
R902
Q801
Q800
Q804
CN804
JR803
IC803
R839
C809
R838
JR804
C820
C812
C819
R843
R850
C808
C807
R848
R847
R841
R893
C811
R840
R837
R836
R835
R834
R833
R831
CN502
CN802
R511
C814
R832
R846
C827
R914
R913
R912
R911
R910
R909
R908
R907
R880
R879
R878
R877
R876
R875
R874
R873
R872
R871
R870
R869
R868
R867
R866
R865
R864
R863
R862
R861
R860
R859
R858
R857
R856
R855
R854
R853
R852
R851
CN805
CNP401
R842
C829
C828
C824
C315
D304
R309
R308
C314
C316
M901
CN807
C823
JR805
C810
C815
C813
LCD801
X801
IC321
C802
X800
C388
D321
CN803
CN503
C806
IC801
IC320
R889
CN1
3P
1SS133T-77
21P
1k
1k
1k
1k
1k
15P
10k
10k
0.1
0.1
0.01
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
100
1k
1k
1k
1k
1k
1.2k
4.7k
1SS133T-77
47k
2SC2412K
SRA2202SF
22p
27p
0
0
470
1k
1k
1k
1k
1k
1k
1k
4.7k
4.7k
4.7k
4.7k
4.7k
1k
1k
1k
100k
220p
4.7k
0.1
47k
100k
SRC1202SF
SRC1202SF
SRC1202SF
17P
0
BMR0301H
470
1
47k
0
0.1
0.01
0.1
10k
4.7k
24p
24p
10k
10k
0.1
10k
1k
1k
1k
1k
1k
1k
18P
18P
10k
0.1
1k
22k
0.1
1k
1k
1k
1k
1k
1k
1k
1k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
19P
3P
4.7k
0.1
0.1
0.1
47
16V
MTZJ-T-77
-4.7C
10
4.7k
0.1
0.1
5P
4.7
50V
0
100
10V
1
10
50V
4.19MHz
TOTX178A
0.22
5.5V
32.768KHz
100p
1SS133T-77
20P
20P
1000p
CXP83124A-053Q
KA3082
4.7k
5P
0
1
2
3
4
5
6
7
8
9
10
11
13
12
14
15
16
17
18
19
20
21
22
23
24
25
26
31
AA1
AA2
AA3
AA4
AA5
AA6
AA7
AA8
AA1
AA2
AA3
AA
4
AA5
AA6
AA7
AA8
27
28
29
30
31
BB1
BB2
BB3
BB4
BB
5
BB6
BB7
BB13
BB8
BB9
B
B11
BB
12
BB13
BB5
BB7
BB4
BB6
BB3
BB2
BB1
BB12
BB11
BB9
BB8
CC2
CC3
CC4
CC5
CC6
CC7
CC8
CC9
CC12
CC2
CC3
CC4
C
C5
CC6
CC7
CC
8
CC10
CC11
CC12
CC11
CC10
CC1
CC9
CC1
COM
 1
COM 2
COM 3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
2
5
26
2
7
28
29
30
DD1
DD2
DD3
DD4
DD5
DD6
DD7
DD8
DD9
DD10
DD11
DD12
DD13
DD14
DD1
DD2
D
D3
DD4
DD
5
D
D6
DD7
DD
8
D
D9
DD10
D
D11
DD12
D
D13
D
D
14
IN
OUT
RESET
CD-ON
TU-ON
REG-CON
D-GND
SOL-CON
MOT-CON
RDS-DATA
RDS-IN
AU MUTE
H/P DETECT
GND
OUT1
INPUT1
INPUT2
+8V
P-GND
BACKUP5V
VOL-CE
KEY1
KEY2
KEY3
RELAY 5V
SIRCS
D-GND
+8V
KEY
STBY-LED
TC-LED
CD-LED
TU-LED
DSG LED
CD-SYNC LED
AMP-MUTE
AC DET
COM0
COM1
COM2
COM3
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
SEG23
SEG24
SEG25
SEG26
SEG27
SEG28
SEG29
SEG30
SEG31
GND
VDD
DIN
TUNED
R-OUT
L-OUT
CD8V
DC DET
D-OUT
D+5V
C-SCOR
SQCK
SENS
SQSO
HOLD
CLK
LATCH
DATA
XRST
A-GND
REC/PB
LINE.MUTE
REC.MUTE
TC-SW
ALC CON
END SW
PLAY SW
(LOADING)
S1
DISC TRAY
OPEN/CLOSE
DETECT
OPEN
CLOSE
KEY-0
RESET SIGNAL
GENERATOR
R893
0
2.2k
10k
(US,CND)
(AEP,UK)
(MX,SP,KR,TH,AUS)
(US,CND)
(AEP,UK)
10k
R841
1k
3.3k
33k (SP,KR,TH,AUS)
(MX)
LIQUID CRYSTAL DISPLAY
(1/2)
SYSTEM CONTROLLER
VCTL
VZ1
VCC2
VCC1
VZ2
OUT2
LOADING MOTOR
DRIVE
WAKE UP
SWITCH
WAKE UP
SWITCH
SWITCH
CD ON
SWITCH
CD ON
SWITCH
TUNER ON
A+5V
CD-R
CD-L
D-GND
P-GND
CD+8V
OPTICAL
OUT(CD)
DIGITAL
GND
GND
ST-DOUT
ST-CLK
ST-CE
ST-DIN
A-GND
VOL-SCK
CD 5V
VOL-SDA
(AEP,UK)
OPTICAL TRANSCEIVER
C-RST
AU-CE
SPK PROTECT
REC-MUTE
REC/
PB
DSG
RST
SIMUKE
2.2µH
4.7µH
4.7µH
4.7µH
6-13. SCHEMATIC  DIAGRAM  – CONTROL/LOADING/SWITCH (1/2)/VIDEO Boards – •
 See page 25 for Waveforms.
 See page 32 for IC Block Diagram.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER (FM/AM)
(
) : CD PLAY
⟨⟨
 
⟩⟩
: TAPE PLAY
(Page 22)
(Page 19)
(Page 29)
(Page 23)

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