Sony DHC-NXM4D / HCD-NXM4D Service Manual ▷ View online
HCD-NXM4D
33
33
HCD-NXM4D
7-4. BLOCK DIAGRAM – TUNER/TAPE DECK SECTION –
TUNER
Q25,26
Q270
Q270
R-CH
L OUT
R OUT
ST-MUTE
TUNER
ST-CE
ST D OUT
ST D IN
ST CLK
STEREO
DECK-A
DECK-B
L
R
HP901
HP901
L
R
HE901
HRP901
HRP901
TAPE
F REC
B SHUT
A HALF
A PLAY
B PLAY
A HALF
A PLAY
B PLAY
R-REC
B HALF
A SHUT
CAPM+
A TRIG+
B TRIG+
R-CH
R-CH
Q303
Q314,315
Q314,315
Q301,302
Q311-313
Q311-313
Q104
Q31,22
Q31,22
R-CH
L
R
R-CH
L
R
VIDEO/SAT
MIC1
J1060
J1061
MIC2
MECHANISM DECK
64
61
66
27
18
50
51
52
53
54
55
54
55
63
5
10
3
11
REC/PB
SWITCH
MUTE
SWITCH
REC/PB
SWITCH
BIAS
OSC
Q318
T301
Q316,317
BIAS
REC/PB
BIAS
SWITCH
TC REC
MUTE
12
CAP M
DRIVE
Q326,327
Q323,324
Q321,322
IC1060(1/2)
IC1061
MIC ECHO
RV1060
A TRIG
DRIVE
90
91
86
89
87
88
3
2
9
4
67
4
68
26
69
25
65
58
97
100
92
LINE MUTE
A MUTE
ST-MUTE
TUNED
TUNED
ST-CE
ST-DIN
ST-CLK
B HALF
FDRONT RELAY
57
STK-MUTE
56
TA MUTE
STBY RELAY
I/O EXP CLK
M16537 CLK
M16537 DATA
SPEC-IN
VACS IN
AMS IN
I/O EXP LAT
I/O EXP DATYA IN
I/O EXP DATA OUT
CLK
DATA
D182
A SHUT
A TRIG
B TRIG
MIC SW
LPF1 IN
LPF1 OUT
LPF2 OUT
CAPM-CNT1
TC REC MUTE
60 TC REC/PB
59 BIAS
B SHUT
ON/OFF
(SWITCHING REGULATOR)
(SWITCHING REGULATOR)
ST-DOUT
80
81
19
8
20
21
22
23
18
17
9
R-CH
CN102
SURR-L
FL-OUT
AMP
SECTION
(Page 35)
MAIN
SECTION
(Page 34)
MAIN
SECTION
(Page 34)
AMP
SECTION
(Page 35)
CN103
Q21,22
Q1
Q1
Q101
FL
SW
FR
SW
DBFB FEED BACK
PROTECT
STK MUTE
FRONT RELAY
HP SW
FAN CTL
SW RELAY
MIC SIG
63
62
71
70
68
67
66
65
7
8
11
53
51
56
50
59
48
34
35
R-CH
Q341-343
Q103
Q29,30
Q29,30
Q140
Q33,34
Q33,34
SELECTOR
R-CH
AMS
DPL-2
DPL-2
42
41
37
29
R-CH
S2
FL
CLK
DATA
CLK
DATA
EQ
AGC
MD BUS
TONE
TRE
AMS
MUTE
AMS
BUFFER
PB MUTE
LED
SWITCH
LED
SWITCH
AMS-MUTE
STEREO
Q1026
D1021
D1001-1005
Q1001-1005
B PLAY
A PLAY
A HALF
CLK
LED 9V
VCC
LATCH
DI 1
DO 2
DO 2
IC951
I/O EXPANDER
IC401 (1/2)
SYSTEM CONTROL
IC101
INPUT SELECT SWITCH
ELECTRICAL VOLUMEI
HP IN
HALF PLAY
AMS MUTE
DISC1
DISC2
DISC3
DISC4
DISC5
PROTECT
24
7
SW RELAY
FAN
MUTE
SWITCH
B TRIG
DRIVE
Q401
MIC
SWITCH
SURR
UNREG+5V
SWITCHING
REGULATOR
UNREG+12V
AC-IN
MCU
I/F
I
E
L
K
SW-OUT
M
F
52
IN
OUT
ANALOG-IN-L
J
30
31
BUFFER
TA MUTE
N
RV1061
IC1060(2/2)
Q903.904
REG SW
3
IC901
REG
1
3
IC903
REG
1
AUDIO+9V
Q901
REG
2
5
IC906
REG
1
D+3.3V
2
5
IC905
REG
1
D+5.5V
M+9V,LED+9V
3
IC902
REG
1
D+3.3V
Q906
REG
DVD+5V
2
4
IC904
REG
1
M+12V
Q902
REG SW
G
DVD POWER
3
1
MIC LEVEL
ECHO LEVEL
6
7
MAIN
SCTION
(Page 34)
R-CH
L-OUT
R-OUT
R-OUT
MAIN
SECTION
(Page 34)
MAIN
SECTION
(Page 34)
MAIN
SECTION
(Page 34)
MAIN
SECTION
(Page 34)
H
H
H
• R-ch is omitted due to same as L-ch.
• Signal path
• Signal path
F
: TUNER
E
: PLAY BACK (DECK A)
d
: PLAY BACK (DECK B)
G
: RECORD
J
: DVD
N
: MIC
HCD-NXM4D
34
34
HCD-NXM4D
7-5. BLOCK DIAGRAM – MAIN SECTION –
IC401 (2/2)
SYSTEM CONTROL
FL-DATA
FL-CLK
FL-CS
FL-RESET
M61530
CLK
DVD POWER
DVD A MUTE
M61530
DATA
SIRCD
AD-KEY2
AD-KEY1
JOG2-A
JOG1-A
VOL-A
POWER KEY
DISPLAY KEY
XC-IN
X-OUT
XC-OUT
X-IN
85
84
83
83
33
LD MTR POS
U/D MTR NEG
U/D MTR POS
U/D MTR NEG
U/D MTR POS
SUB TRAY OUT
SUB TRAY IN
TRAY CLOSE SW
TRAY OPEN SW
ST-E1
ST-E2
ST-E3
ST-E4
MD-E1
MD-E1
MD-E2
MD-E3
MD-E3
MD-E4
D,SENSER
D,SENSER
EVER+4V
EVER+4V
47
34
46
34
46
35
45
45
CDN-MOT-NEG-1(LD)
CDN-MOT-POS-1(LD)
CDN-MOT-NEG-2(U/D)
CDN-MOT-POS-2(U/D)
CDM-MAIN-SW-OPEN(SW2)
CDM-MAIN-SW-CLOSE(SW4)
CDM-SUB-SW-OPEN(SW2)
CDM-SUB-SW-CLOSE(SW3)
CDM-ENC-B-3(MDM4)
CDM-ENC-B-2(MDM3)
CDM-ENC-B-1(MDM2)
CDM-ENC-B-0(MDM1)
CDM-ENC-A-3(STE4)
CDM-ENC-A-2(STE3)
CDM-ENC-A-1(STE2)
CDM-ENC-A-0(STE1)
DISC SENS
LED-STANDBY
RESET
AC-CUT
48
LD MTR NEG
CLCK
DATA
DVD POWER
1
2
28
27
36
44
43
38
38
42
39
39
37
41
40
75
75
REAR RELAY 6
72
12
20
SW MUTE 19
LD/ST MTR POS
BU U/D MTR NEG
BU U/D MTR POS
BU U/D MTR POS
SW3 SUB TRAY OUT
SW2 SUB TRAY OUT
SW4 SUB TRAY CLOSE OUT
SW1 SUB TRAY OPEN OUT
ST-E1
ST-E2
ST-E3
ST-E4
MD-E1
MD-E2
MD-E3
MD-E3
MD-E4
D,SENSER
LD/ST MTR NEG
CN201
ANALOG-IN-R
R-CH
R-CH
CN104
RELAY
C-IN
SR-IN
SR-IN
SL-IN
SURR-R
SURR-L
R-CH
FL-OUT
FL-OUT
R-CH
L-OUT
R-OUT
ANALOG-IN-L
L-OUT
R-CH
ANALOG-IN-L
Q102
DM-L
L OUT
DM-R
DM-L
DM-R
SL-IN
C-IN
FR-IN
FL-IN
SR-IN
LFE-IN
ANALOG-IN-L
OUT
SIRCS
IC1050
4
1
KEY2-1
KEY2-2
S1043
S1001-1005
S1051
KEY
NETWORK
94
ROTARY
ENCODER
ROTARY
ENCODER
ROTARY
ENCODER
TREBLE
78
JOG2-B
79
S1050
76
JOG1-B
77
S1052
S1042
70
VOL-B
71
74
95
BASS
BASS
X401
36.768kHz
X402
16MHz
VOLUME
S1021-1027,1029-1031
S1032-1036
S1032-1036
REMOTE
CONTROL
RECEIVER
KEY
NETWORK
S1028
73
DISPLAY
10
11
13
15
82
LED
SWITCH
MUTE
SW
Q270
MUTE
SW
Q271
MUTE
SW
Q272
MUTE
SW
Q273
MUTE
SW
Q274
MUTE
SW
Q275
MUTE
SW
Q276
MUTE
SW
Q277
MUTE
SW
Q25,26
S,W
SURR-L
SURR-L
DVD
A MUTE
Q1041
D1050
IC391
RESET
Q391
3
1
LEVEL
DETECT
IC701
LD/ST MOTOR DRIVER
9 RIN
FIN
OUT1
M761
(LD/ST)
ROTARY
ENCODER
(ST U/D)
S781
OUT2
7
4
2
IC711
U/DOTOR DRIVER
9 RIN
FIN
OUT1
OUT2
OUT2
7
4
2
25
SYS RESET
VIDEO SW
VIDEO SW
VMUTE
I
2
C DATA
I
2
C CLK I/O
24
23
29
23
29
30
DVD MUTE REQ
DVD SYS REST
DVD VIDEO SW
DVD VIDEO MUTE
IIC-CLK
IIC-DATA
26
M-REG
IC1020
DISPLAY CONTROL/KEY CONTROL
IC201
INPUT ATTENUATOR
LPF, AGC, BASS BOOST
8
7
6
6
5
51
I
15
3
•
2
•
1
•
64
I
57
56
•
55
4
54
GREID
DRIVE
DRIVE
Q1021
GRID
DRIVE
Q1022
55
GRID
DRIVE
Q1023
SDATA
SCK
CS
RESET
SEG00
I
SEG35
DEG01
FL1020
FLUORESCENT
INDICATOR
TUBE
F1
F2
DEG11
DEG12/SEG36
DEG13/SEG37
DG00
DIG14SEG38
VF1
VP
D/D CON+9V
Q1024
T801
D1023-1026
VF2
VP
RECT
BIAS
OSC
DVD DSP(2/2)
SECTION
(Page 32)
D
G
L
Q23,24,40
ANALOG IN
MUTE
37
38
R OUT
39
EL OUT
34
12
5
FL IN
40
FR IN
41
CIN
2
SL-IN
13
SR-IN
6
SW
SW
10
LFE-IN
14
15
9
24
11
3
4
25
8
9
23
32
33
22
29
26
SW-LPF
Q3
MUTE
SW
R-ch
Q21,22
TA
MUTE
DATA
CLOCK
Q19,20
SW
MUTE
Q6
SW
MUTE
Q4
SW
MUTE
SW
M
O
TA MUTE
DATA
CLOCK
N
17
18
M
M762
(U/D)
MAIN TRAY
OPEN/IN
S721
S731
OPEN
CROSE
M
(SUB TRAY OUT)
(SUB TRAY OUT)
S761
ROTARY
ENCODER
(MD)
S771
SENSE
SWITCH
Q751
D+3.3V
IC751
(DISC SENSOR)
DVD DSP(1/2)
SECTION
(Page 31)
H
DVD DSP(2/2)
SECTION
(Page 32)
TUNER/
TAPE
DECK
SECTION
(Page 33)
TUNER/
TAPE
DECK
SECTION
(Page 33)
C
J
I
K
TUNER/TAPE DECK
SECTION
(Page 33)
TUNER/TAPE DECK
SECTION
(Page 33)
TUNER/TAPE DECK
SECTION
(Page 33)
AMP
SECTION
(Page 35)
TUNER/TAPE DECK
SECTION
(Page 33)
TUNER/TAPE DECK
SECTION
(Page 33)
• R-ch is omitted due to same as L-ch.
• Signal path
• Signal path
F
: AUDIO
J
: DVD
HCD-NXM4D
35
35
HCD-NXM4D
7-6. BLOCK DIAGRAM – AMP SECTION –
• R-ch is omitted due to same as L-ch.
• Signal path
• Signal path
F
: AUDIO
18
19
STK
MUTE
SWITCH
8
9
FL
FR
SW
DBFB FEED BACK
CN501
R-CH
STK MUTE
FRONT RELAY
HP SW
FAN CTL
PROTECT
SW RELAY
CN508
FAN
3
2
1
4
10
11
22
21
-VH
SUPP
TEMP
DETECT
MUTE
SWITCH
-VH
D501
Q507,508
Q507,508
D507
Q854
RELAY
DRIVE
Q509
R-CH
R-CH
SL IN
SR IN
C IN
RELAY
R-CH
R-CH
L
Q854
IC850
OVER CURRENT PROTECTER
IC601
SURROUND AMP
IC501
POWER AMP
Q850-852
Q501,502
Q503
Q858-861
MUTE
CONTROL
OCP
OUT
VP
CT
Q868,869,890
Q505
-PRE
+PRE
TM502
+VH
OVER
LOAD
LOAD
DETECT
SPEAKER
PROTECT
PROTECT
RELAY
DRIVE
RELAY
DRIVE
Q510
R
L
R
PHONES
SUB WOOFER
FRONT
SURROUND
CENTER
J1063
Q506
OVER
LOAD
LOAD
DETECT
FAN
MOTOR
DRIVE
FAN
E
F
TUNER/TAPE
DECK
SECTION
(Page 33)
TUNER/TAPE
DECK
SECTION
(Page 33)
O
MAIN
SECTION
(Page 34)
3
15
8
13
Q603
Q601
Q610
SL SP
C SP
PROTECT
OVER DC
DETECT
OVER DC CURRENT DETECT
PROTECT
SWITCH
RELAY
DRIVE
SPEAKER
OUT
CN601
PROTECT
SWITCH
HCD-NXM4D
36
36
HCD-NXM4D
7-7. PRINTED WIRING BOARD – RF SECTION –
• See page 29 for Circuit Boards Location.
Ref. No. Location
IC101
D-8
IC251
C-6
IC301
C-8
IC303
B-8
Q10
E-4
• Semiconductor
Location
C023
C028
C040
C037
R004
R005
C038
C022
C020
R016
R003
R018
R014
R012
C027
C041
C010
Q002
Q001
R007
C039
R001
C021
C013
R009
R008
C008
E
E
C017
C015
C011
C009
R021
CN003
CN001
1
24
CN002
C049
IC003
R033
1
3
5
4
R034
R047
R046
C050
C052
R091
R024
R025
R023
C029
C026
R026
C024
R027
R017
R015
C042
R013
R019
L002
L001
C003
D002
D001
R022
R020
C031
R011
C006
C005
C034
R006
R028
R029
C036
C032
C035
JL005
RFMON
C033
C004
C012
C025
R010
C002
C030
C018
C016
C014
C019
R035
C001
R041
R031
C051
VC
IC001
32
33
48
49
64
1
16
17
12
(12)
1-684-822-
12
(12)
1-684-822-
A
DMB07
BOARD
BOARD
(Page40)
OPTICAL
PICK-UP
BLOCK
(DBU-3)
OPTICAL
PICK-UP
BLOCK
(DBU-3)
(SIDE A)
RF BOARD
(SIDE B)
RF BOARD
2
3
4
5
6
7
8
9
A
1
B
C
D
Click on the first or last page to see other DHC-NXM4D / HCD-NXM4D service manuals if exist.