Sony HCD-MG110 / HCD-MG310AV / MHC-MG110 / MHC-MG310AV Service Manual ▷ View online
50
HCD-MG110/MG310AV
Pin No.
Pin Name
I/O
Description
42
POWER STBY
O
Standby relay drive signal output terminal “L”: standby, “H”: power on
43
FL RESET
O
Reset signal output to the display controller (IC701)
44
A-MUTE
O
Audio muting on/off control signal output terminal “H”: muting
45
HP-CHK
I
Headphone detection signal input terminal “H”: headphone on
46
NC
—
Not used (fixed at “H”)
47
DBFB-ON
O
DBFB on/off control signal output terminal “H”: DBFB on
48
DBFB-H/L
O
DBFB normal/high selection signal output terminal “L”: DBFB high, “H”: DBFB normal
49
SURROUND
O
Surround mode on/off control signal output terminal (MG110 only)
50
REC-MUTE
O
Recording muting on/off control signal output terminal “H”: muting on
51
V-DATA
O
Serial data output to the BD3861FS (IC302)
52
V-CLK
O
Serial data transfer clock signal output to the BD3861FS (IC302)
53
PB-A/B
O
Deck-A/B selection signal output to the REC/PB amp (IC401) “L”: deck-B, “H”: deck-A
54
PB/REC
O
PB/REC selection signal output to the REC/PB switch (IC402) “L”: PB, “H”: REC
55
F-RELAY
O
Relay drive signal output for the front speaker protection “H”: on
56
B-PLAY
I
Detection input from the deck-B play detect switch in the tape mechanism deck section
“L”: deck-B play
“L”: deck-B play
57
V-MUTE
O
Video muting on/off control signal output terminal Not used (open)
58
MO-ON
O
Capstan motor on/off control signal output terminal “H”: on
59
A-TRIG
O
Deck-A trigger plunger drive signal output terminal “H”: trigger plunger on
60
B-TRIG
O
Deck-B trigger plunger drive signal output terminal “H”: trigger plunger on
61
B-PLAY
I
Detection input from the deck-B play detect switch in the tape mechanism deck section
“L”: deck-B play
“L”: deck-B play
62
VCC
—
Power supply terminal (+5V)
63
NC
—
Not used (open)
64
VSS
—
Ground terminal
65
STK-MUTE
O
Power amplifier on/off control signal output terminal “L”: power amplifier on
66
A-HALF
I
Detection input from the deck-A cassette detect switch in the tape mechanism deck section
“L”: cassette in
“L”: cassette in
67
AMS-IN
I
Automatic music sensor detection signal input from the REC/PB amp (IC401)
68
PB-MUTE
O
Recording muting on/off control signal output terminal “H”: muting on
69
TAPE
O
Selection signal output of the input signal to the BU4066BC (IC306)
“H”: tape (MG310AV only)
“H”: tape (MG310AV only)
70
DVD
O
Selection signal output of the input signal to the BU4066BC (IC306)
“H”: 5.1CH INPUT (MG310AV only)
“H”: 5.1CH INPUT (MG310AV only)
71
FM-ON
O
FM on/of control signal output terminal “H”: FM on
72
VCD-ON
O
VCD on/off control signal output terminal Not used (open)
73
DISPLAY KEY
I
Key input terminal DISPLAY key (S770) input
74
POWER KEY
I
Key input terminal I/1 key (S700) input
75
NC
—
Not used (open)
76
TU-TUNED
I
Tuning detection signal input from the FM/AM tuner pack “L”: tuned, “H”: detuned
77
TU-CE
O
PLL chip enable signal output to the FM/AM tuner pack
78
TU-DI
I
PLL serial data input from the FM/AM tuner pack
79
TU-CLK
O
PLL serial data transfer clock signal output to the FM/AM tuner pack
80
TU-DO
O
PLL serial data output to the FM/AM tuner pack
81
CD POWER
O
CD power on/off control signal output terminal “H”: CD on
82
AC-CUT
I
AC off detection signal input from the reset signal generator (IC802)
83
C-XRST
O
Reset signal output to the CXD3017Q (IC101)
51
HCD-MG110/MG310AV
Pin No.
Pin Name
I/O
Description
84
C-SENS
I
Internal status monitor input from the CXD3017Q (IC101)
85
C-DATA
O
Command serial data output to the CXD3017Q (IC101)
86
C-LATCH
O
Command latch pulse output to the CXD3017Q (IC101)
87
C-CLK
O
Command serial data transfer clock signal output to the CXD3017Q (IC101)
88
LD ON
I
Laser diode on/off control signal output to the CXA2581N (IC103)
89
B-SHUT
I
Shut off detection signal input from the deck-B side reel pulse detector in the tape mechanism
deck section
deck section
90
B-HALF
I
Detection input from the deck-B cassette detect switch in the tape mechanism deck section
“L”: cassette in
“L”: cassette in
91
T-SENS3
I
Table position sensor (IC12) input terminal
92
D-SENS
I
Disc detect sensor (Q841) input terminal “H”: disc in
93
T-SENS1
I
Table position sensor (IC11) input terminal
94
SPEC
I
Model specification setting terminal
95
MODEL
I
Model destination setting terminal
96
AVSS
—
Ground terminal (analog system)
97
A-SHUT
I
Shut off detection signal input from the deck-A side reel pulse detector in the tape mechanism
deck section
deck section
98
VREF
I
Reference voltage (+5V) input terminal (for A/D converter)
99
AVCC
—
Power supply terminal (+5V) (for A/D conversion)
100
TABLE NEG
O
Table motor drive signal (clockwise) output to the motor driver (IC881)
52
HCD-MG110/MG310AV
•
DISPLAY BOARD IC701 MB90M407APF-G-104-BND (DISPLAY CONTROLLER)
Pin No.
Pin Name
I/O
Description
1 to 10
G4 to G13
O
Grid drive signal output to the fluorescent indicator tube (FL701)
11
VSS-IO
—
Ground terminal
12 to 22
S34 to S24
O
Segment drive signal output to the fluorescent indicator tube (FL701)
23
VDD-FIP
—
Power supply terminal (+3.3V)
24 to 41
S23 to S6
O
Segment drive signal output to the fluorescent indicator tube (FL701)
42
VSS-IO
—
Ground terminal
43 to 47
S5 to S1
O
Segment drive signal output to the fluorescent indicator tube (FL701)
48
VKK
—
Power supply terminal (–33V) (for fluorescent indicator tube drive)
49 to 51
MD0 to MD2
—
Not used (fixed at “H”)
52, 53
IC0, IC1
—
Not used (open)
54
SI0
—
Not used (open)
55
SC0
—
Not used (open)
56
SO0
—
Not used (open)
57
SI1
—
Not used (open)
58
SC1
—
Not used (open)
59
DOOR SW
I
CD lid open/close detest switch (S791) input terminal “L”: CD lid is close
60
SDA
I/O
Communication data reading clock signal input or transfer clock signal output with the system
controller (IC801)
controller (IC801)
61
SCL
I/O
Communication data bus with the system controller (IC801)
62
AVCC
—
Power supply terminal (+3.3V) (for A/D converter)
63
AVSS
—
Ground terminal (for A/D conversion)
64, 65
JOG A, JOG B
I
Jog dial pulse input from the rotary encoder (RV702 DISC ACCESS)
66, 67
VOL A, VOL B
I
Jog dial pulse input from the rotary encoder (RV701 VOLUME)
68 to 70
PA4 to PA6
—
Not used (open)
71
L+R
I
Spectrum analyzer drive signal input from the spectrum analyzer band-pass filter (IC703)
72 to 75
BPF4 to BPF1
I
Spectrum analyzer drive signal input from the spectrum analyzer band-pass filter (IC704)
76
KEY3
I
Key input terminal (A/D input) (S771 to 777) PLAY MODE, REPEAT STEREO/MONO, CD
SYNCRO, z REC, CLEAR, DIRECTION, MENU keys input
SYNCRO, z REC, CLEAR, DIRECTION, MENU keys input
77
XRST
I
Reset signal input from the system controller (IC801)
78
KEY2
I
Key input terminal (A/D input) (S760 to 767) TIMER SELECT, TIMER SET, m, M,
TUNER/BAND, CD, TAPE A/B, 5.1CH/VIDEO (MD) keys input
TUNER/BAND, CD, TAPE A/B, 5.1CH/VIDEO (MD) keys input
79
KEY1
I
Key input terminal (A/D input) (S750 to 757) SURROUND MODE, PRESET EQ, ENTER, –
., > +, X PAUSE, x, n N keys input
., > +, X PAUSE, x, n N keys input
80
KEY0
I
Key input terminal (A/D input) (S741 to 745) LINK, REAR, FRONT, PRO LOGIC,
SURROUND keys input
SURROUND keys input
81
CPU VSS
—
Ground terminal
82
X0
I
System clock input terminal (4 MHz)
83
X1
O
System clock output terminal (4 MHz)
84
VCC-CPU
—
Power supply terminal (+3.3V)
85
COM
—
Not used (open)
86
LED0
O
LED drive signal output terminal (I/1)
87
LED1
O
LED drive signal output terminal (PRESET EQ)
88
LED2
O
LED drive signal output terminal Not used (open)
89
LED3
O
LED drive signal output terminal (SURROUND) (MG310AV only)
90
LED4
O
LED drive signal output terminal (PRO LOGIC) (MG310AV only)
91
LED5
O
LED drive signal output terminal (FRONT) (MG310AV only)
53
HCD-MG110/MG310AV
Pin No.
Pin Name
I/O
Description
92
LED6
O
LED drive signal output terminal (REAR) (MG310AV only)
93
LED7
O
LED drive signal output terminal (LINK) (MG310AV only)
94
LED8
O
LED drive signal output terminal (CD lid illumination)
95
LED9
O
LED drive signal output terminal (CD)
96, 97
LED10, LED11
O
LED drive signal output terminal Not used (open)
98 to 100
G1 to G3
O
Grid drive signal output to the fluorescent indicator tube (FL701)
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