Sony HCD-MG110 / HCD-MG310AV / MHC-MG110 / MHC-MG310AV Service Manual ▷ View online
HCD-MG110/MG310AV
22
22
FM ANT
ANT GND
AM ANT
ANT GND
DO
TU-CLK
TU-CE
TUNED
L-CH
R-CH
DI
TUNER PACK
FM 75
Ω
AM
R-CH
78
TU-DI
80
TU-DO
79
TU-CLK
77
TU-CE
76
TU-TUNED
DI
DO
CLK
CE
TUNED
DO
CLK
CE
TUNED
DI
R-CH
L-CH
R-CH
L-CH
R-CH
R-CH
HP101
(PLAY)
HRPE101
(REC/PLAY/ERASE)
1
3
2
4
R-CH
R-CH
REC/PB SWITCHING
IC402
R-CH
BIAS OSC
T401
T403
BIAS
TRAP
C429, R429
REC BIAS
SWITCH
Q402, 403
AU +9V
BIAS OSC
Q401
TRIGGER
PLUNGER DRIVE
(DECK B)
Q385, 386
TRIGGER PLUNGER
(DECK B)
59
A-TRIG
TRIGGER
PLUNGER DRIVE
(DECK A)
Q383, 384
TRIGGER PLUNGER
(DECK A)
60
B-TRIG
89
B-SHUT
97
A-SHUT
TAPE MECHANISM
DECK BLOCK
(2/2)
23
24
B IN-L
A IN-L
19
A/B SW
R-CH
PB
AMP
20
PB-L
6
MIX
OUT
+
R-CH
PB AMP
IC401 (1/2)
70
DVD
69
TAPE
1
2
4
3
5
13
INPUT SELECT
SWITCH
IC306
R-CH
R-CH
68
PB-MUTE
50
REC-MUTE
14
REC
OUT-L
OUT-L
REC
IN-L
REC
AMP
REC AMP
IC401 (2/2)
16
MUTING
Q112
R-CH
67
AMS
53
PB-A/B
54
PB/REC
MUTING
Q102
AMS DET
Q404, 405
R-CH
R-CH
MUTING
Q101
D
(Page 23)
TAPE
L-CH
C
(Page 23)
5.1CH
B
(Page 23)
TUNER
L-CH
E
(Page 23)
REC
L-CH
58 MO-ON
CAPSTAN
MOTOR DRIVE
Q381, 382
MOTOR
+12V
SENSOR B+
M
M
M1
(CAPSTAN)
56
B-PLAY
61
A-PLAY
(DECK B PLAY)
TAPE MECHANISM
DECK BLOCK
(1/2)
(DECK A PLAY)
66
A-HALF
(DECK A HALF)
90
B-HALF
(DECK B HALF)
(DECK B REC)
(DECK A REC)
SYSTEM CONTROLLER
IC801 (2/5)
(HCD-MG310AV)
(HCD-MG110)
(HCD-MG310AV)
• SIGNAL PATH
• R-ch is omitted due to same as L-ch.
: TUNER
: TAPE PLAY (DECK A)
: REC
: 5.1CH INPUT
: TAPE PLAY (DECK B)
ROTATION
DETECT SENSOR
(DECK A)
ROTATION
DETECT SENSOR
(DECK B)
7-2.
BLOCK DIAGRAM – TUNER/TAPE DECK Section –
HCD-MG110/MG310AV
23
23
74
76
22 23 24
8
7
6
9
3
1
17
16
15
26
27
INPUT
AUTO-BALANCE
DELAY
VOLUME
MODIFIED
BNR
TRIMMER,
VOLUME
TRIMMER,
VOLUME
PSEUDO
STEREO
NOISE
SEQUENCER
TRIMMER,
VOLUME
L+R
2
L–R
CPU
INTERFACE
DATA
REQ
SCK
COMMAND
SLIN
CIN
LTIN
R-CH
R-CH
SELECTOR
CENTER
MODE
CONTROL
10KBIT S-RAM
LOGIC
CIRCUIT
ADAPTIVE
MATRIX
R-CH
PS
RIN
PS
LIN
DS2L
OUT
DIN
L
C
R
SW
OUT
SWVOL
IN
S
42
40
4
5
10
11
DVOL
OUT
R-CH
LOUT
CVOL OUT
SLVOL OUT
SLVOL
IN
CVOL
IN
BNR
IN
+
SWVOL OUT
C
OUT
SL
OUT
DOLBY PRO LOGIC
SURROUND PROCESSOR
IC301
3
5
7
1
9
B1
C1
D1
A1
E1
INPUT SELECT
LINE
OUT
LOGIC
32
15
14
DATA
CLK
51 V-DATA
52 V-CLK
DATA
CLK
R-CH
R-CH
J304
VIDEO OUT
J701
J302
VIDEO IN
L
R
AUDIO
L
R
VIDEO
J301
FRONT
L
R
REAR
L
R
CENTER
SUPER
WOOFER
5.1CH
INPUT
R-CH
R-CH
C
FRONT
REAR
CENTER
WOOFER
(Page 22)
5.1CH
REAR
CENTER
FRONT
77
20
OUT1
29
VOL1
SOUND
CONTROL
ELECTRICAL VOLUME
IC302 (2/2)
AMP
IC304 (2/2)
MUTING
Q232
SUPER WOOFER
OUT
MUTING
CONTROL
Q333, 334
LOW-PASS
FILTER
IC304 (1/2)
+
R-CH
J303
G
(Page 24)
FRONT
L-CH
REAR
L-CH
CENTER
H
(Page 24)
(Page 24)
J
F
(Page 25)
E
(Page 22)
A
(Page 21)
B
(Page 22)
D
(Page 22)
CD
L-CH
L-CH
TUNER
L-CH
L-CH
TAPE
L-CH
L-CH
INPUT SELECT
IC302 (1/2)
PL-DATA
PL-RQ
PL-CLK
27 28 25
S/W-MUTE
38
+
R-CH
WOOFER
SWIN
79
80
VRSWIN
LIN
72
DATA
CLK
SYSTEM CONTROLLER
IC801 (3/5)
• SIGNAL PATH
: TUNER
: CD PLAY
• R-ch is omitted due to same as L-ch.
: TAPE PLAY
: REC
: VIDEO IN (AUDIO)
: GAME IN (AUDIO)
: GAME IN (VIDEO)
: 5.1CH INPUT
(HCD-MG310AV)
(HCD-MG110)
(HCD-MG310AV)
REC
L-CH
L-CH
SPE ANA
(HCD-MG310AV)
7-3.
BLOCK DIAGRAM – SURROUND Section –
HCD-MG110/MG310AV
24
24
R-MUTE
10
11
6
12
9
8
REAR OUTPUT
SELECT SWITCH
IC307
R-CH
R-CH
DBFB
SWITCH
Q141
DBFB LEVEL
CONTROL
Q142
R-CH
R-CH
POWER AMP
IC501
MUTING
Q517, 518
MUTING
CONTROL
Q522
MUTING
Q501
MUTING
CONTROL
Q502, 516
R-CH
65
STK-MUTE
44
A-MUTE
23
R-MUTE
21
C-MUTE
STK-MUTE
A-MUTE
R-MUTE
C-MUTE
34
FRONT
35
REAR
47
DBFB-ON
48
DBFB-H/L
49
SURROUND
STK MUTE
STK MUTE
R-CH
MUTING
Q602, 603
MUTING
CONTROL
Q341, 342
MUTING
Q601
POWER AMP
IC602
MUTING
CONTROL
Q343, 344
C-MUTE
Q524
POWER ON
MUTING
Q521
D513
AU +9V
PROTECT
DETECT
Q514
PROTECTOR
Q505, 508
+
D501
OVER LOAD
DETECT
Q506, 507
+
+
+
+
+
+
+
OVER LOAD
DETECT
Q604, 605
OVER LOAD
DETECT
Q606
MUTING
Q519, 520
MUTING
CONTROL
Q523
+
–
+
+
–
+
–
40
R-RELAY
HP CHK
F-RELAY
55
F-RELAY
45
HP-CHK
DC DETECT
Q513, 515
RY502
RY503
RELAY DRIVE
Q504, 510
HP CHK
F-RELAY
RELAY DRIVE
Q503, 509
J501 (2/2)
M391
(FAN)
(FAN)
J502
REAR
IMPEDANCE
USE 8
Ω
L
R
SURROUND
SPEAKER
CENTER
IMPEDANCE
USE 8
Ω
+
–
+
+
–
FRONT SPEAKER
IMPEDANCE
USE 8
Ω
L
R
PHONE
J503
RY501
SURROUND
AMP
IC308
SURROUND
SWITCH
Q301
DBFB AMP
IC303
SYSTEM CONTROLLER
IC801 (4/5)
D389
D395, 399
• SIGNAL PATH
: TUNER
• R-ch is omitted due to same as L-ch.
FRONT
L-CH
L-CH
G
(Page 23)
REAR
L-CH
L-CH
J
(Page 23)
CENTER
H
(Page 23)
J501 (1/2)
(HCD-MG110)
(HCD-MG310AV)
(HCD-MG110)
(HCD-MG310AV)
(Australian model)
+
+
+
+
D503
FAN MOTOR
DRIVE
Q391, 392
M
7-4.
BLOCK DIAGRAM – AMP Section –
Ver 1.1
HCD-MG110/MG310AV
25
25
GRID DRIVE
Q721 – 723
FL701
FLUORESCENT
INDICATOR TUBE
47
–
43,41
–
24,
22
–
12
S1
–
S34
99, 100, 2,
3, 5
–
10
G2, G3, G5, G6,
G8
–
G13
98, 1, 4
G1, G4, G7
GRID DRIVE
Q721 – 723
17
–
14
75
–
72
F1
–
F4
BPF1
–
BPF4
4 LINE IN
13
L+R
BAND-PASS
FILTER
IC703
71 L+R
66 VOL A
67 VOL B
ROTARY
ENCODER
RV701
VOLUME
64 JOG A
65 JOG B
ROTARY
ENCODER
RV702
DISC
ACCESS
X
(Page 23)
F
SPE ANA
X701
4MHz
82 X0
83 X1
89
–
93
LED3
–
LED7
GRID DRIVE
Q721 – 723
LED DRIVE
Q713 – 717
D703 – 707
86, 87, 94, 95
LED0, LED1,
LED8, LED9
LED DRIVE
Q702 – 705, 718
D708, 736,
D781, 782, 791
D781, 782, 791
80
–
78, 76
KEY0
–
KEY3
S701, 741 – 745,
S750 – 757, 760 – 767,
S771 – 777
S750 – 757, 760 – 767,
S771 – 777
59
DOOR SW
DISPLAY CONTROLLER
IC701
S791
CD LID
OPEN/CLOSE
DETECT
60
SDA
61
SCL
77
RSTX
30 IIC DATA
29 IIC CLK
43 FL-RESET
74 POWER KEY
73 DISPLAY KEY
S700
S770
DISPLAY
36 KB-SDA
20 KB-SCL
37 KB-CTRL
4
1
5
B+ 5V
+5V
SDA
SCL
J801
KEYBOARD
4 RMC
X802
16MHz
15 XIN
13 XOUT
X801
32.768kHz
10 SUBXIN
11 SUBXOUT
81
CD POWER
SYSTEM CONTROLLER
IC801 (5/5)
71
FM-ON
42
POWER STBY
12
RESET
82
AC CUT
B+ SWITCH
Q361, 362
CD +8V
CD +3V
+3.3V
REGULATOR
Q102
COM +5V
+5V
REGULATOR
IC904
+8V
REGULATOR
IC903
+5V
REGULATOR
IC905
MOTOR +12V
CD +5V
B+ 5V
FL +3.3V
D701, 702
+7V
REGULATOR
Q352
FM +7V
D866
+12V
REGULATOR
IC902
+9V
REGULATOR
IC901
AU +9V
REGULATOR
CONTROL
Q350, 351
RESET SIGNAL
GENERATOR
IC802
BU +5V
U-COM +5V
D803
D802
D806
+5.6V
REGULATOR
Q802, 803
RECT
D961 – 964
RECT
D911 – 914
RELAY DRIVE
Q901
T902
POWER
TRANSFORMER
(SUB)
RECT
D507
D507
RECT
D511
D511
R AMP B+
R AMP B–
F AMP B+
F AMP B–
– 33V
REGULATOR
Q397
VP – 33V
D901
RECT
RECT
VF1
VF2
RY901
(AC IN)
T901
POWER
TRANSFORMER
(MAIN)
(HCD-MG310AV)
RESET
SWITCH
Q801
REMOTE CONTROL
RECEIVER
IC702
(HCD-MG310AV)
TO FLUORESCENT
INDICATOR TUBE
FL701
7-5.
BLOCK DIAGRAM – DISPLAY/POWER SUPPLY Section –
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