Sony HCD-MG110 Service Manual page 50

HCD-MG110/MG310AV
Pin No. Pin Name
42 POWER STBY
43 FL RESET
44 A-MUTE
45 HP-CHK
46 NC
47 DBFB-ON
48 DBFB-H/L
49 SURROUND
50 REC-MUTE
51 V-DATA
52 V-CLK
53 PB-A/B
54 PB/REC
55 F-RELAY
56 B-PLAY
57 V-MUTE
58 MO-ON
59 A-TRIG
60 B-TRIG
61 B-PLAY
62 VCC
63 NC
64
VSS
65 STK-MUTE
66 A-HALF
67 AMS-IN
68 PB-MUTE
69 TAPE
70 DVD
71 FM-ON
72 VCD-ON
73 DISPLAY KEY
74 POWER KEY
75 NC
76 TU-TUNED
77 TU-CE
78 TU-DI
79 TU-CLK
80 TU-DO
81 CD POWER
82 AC-CUT
83 C-XRST
50
I/O
O
Standby relay drive signal output terminal "L": standby, "H": power on
O
Reset signal output to the display controller (IC701)
O Audio muting on/off control signal output terminal "H": muting
I
Headphone detection signal input terminal "H": headphone on
—
Not used (fixed at "H")
O
DBFB on/off control signal output terminal "H": DBFB on
O DBFB normal/high selection signal output terminal "L": DBFB high, "H": DBFB normal
O
Surround mode on/off control signal output terminal (MG110 only)
O
Recording muting on/off control signal output terminal "H": muting on
O
Serial data output to the BD3861FS (IC302)
O Serial data transfer clock signal output to the BD3861FS (IC302)
O
Deck-A/B selection signal output to the REC/PB amp (IC401) "L": deck-B, "H": deck-A
O
PB/REC selection signal output to the REC/PB switch (IC402) "L": PB, "H": REC
O
Relay drive signal output for the front speaker protection "H": on
Detection input from the deck-B play detect switch in the tape mechanism deck section
I
"L": deck-B play
O Video muting on/off control signal output terminal Not used (open)
O
Capstan motor on/off control signal output terminal "H": on
O
Deck-A trigger plunger drive signal output terminal "H": trigger plunger on
O
Deck-B trigger plunger drive signal output terminal "H": trigger plunger on
Detection input from the deck-B play detect switch in the tape mechanism deck section
I
"L": deck-B play
—
Power supply terminal (+5V)
—
Not used (open)
— Ground terminal
O Power amplifier on/off control signal output terminal "L": power amplifier on
Detection input from the deck-A cassette detect switch in the tape mechanism deck section
I
"L": cassette in
I
Automatic music sensor detection signal input from the REC/PB amp (IC401)
O
Recording muting on/off control signal output terminal "H": muting on
Selection signal output of the input signal to the BU4066BC (IC306)
O
"H": tape (MG310AV only)
Selection signal output of the input signal to the BU4066BC (IC306)
O
"H": 5.1CH INPUT (MG310AV only)
O FM on/of control signal output terminal "H": FM on
O
VCD on/off control signal output terminal Not used (open)
I
Key input terminal DISPLAY key (S770) input
I
Key input terminal I/1 key (S700) input
— Not used (open)
I
Tuning detection signal input from the FM/AM tuner pack "L": tuned, "H": detuned
O
PLL chip enable signal output to the FM/AM tuner pack
I PLL serial data input from the FM/AM tuner pack
O PLL serial data transfer clock signal output to the FM/AM tuner pack
O
PLL serial data output to the FM/AM tuner pack
O
CD power on/off control signal output terminal "H": CD on
I
AC off detection signal input from the reset signal generator (IC802)
O Reset signal output to the CXD3017Q (IC101)
Description