Read Sony CMT-DC500MD / HCD-J300 Service Manual online
68
HCD-J300
Pin No.
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
I/O
I
O
O
O
O
O
O
—
—
—
—
—
—
—
O
O
I
I
O
O
O
—
I
I
O
O
O
O
O
O
I
I
O
O
I
O
O
I
I
I
I
I
I
I
—
I
—
—
O
Pin Name
H/P_CHECK
H/P_MUTE
AMP_MUTE
VOL_CLK
VOL_DATA
STK_POWER
LINE-MUTE
NC
NC
NC
VCC
NC
VSS
NC
FM_ON
TU_ON
TUNED
ST_DOUT
ST_CLK
ST_DIN
ST_CE
NC
POWER_KEY
PC_POWER
LCD_BACK_LIGHT
LCD-RS
TUNER-LED
CD_LED
MD_LED
TC_LED
VOL_A
VOL_B
TAPE REC
MD REC
TREBLE-B
MD_INDICATOR_LED
DSG-LED
KEY0
KEY1
KEY2
KEY3
B-SHUT(SENSOR)
B_HALF/REC
MODEL_IN
AG
SPEC_IN
VREF
AVCC
SOFT_TEST
Description
Headphone detect signal input
Headphone muting control signal output
Power amplifier muting control signal output (L=ON,H=OFF)
Volume clock signal output
Volume data signal output
Power amplifier ON/OFF signal output (H=ON,L=OFF)
Line muting control signal output (H=ON,L=OFF)
Not used
Not used
Not used
Power supply (+5V)
Not used
Ground
Not used
FM ON/OFF signal output (H=ON,L=OFF)
Tuner power ON/OFF signal output (H=ON,L=OFF)
TUNED detect signal input
Tuner data signal input
Tuner clock output
Tuner data signal output
Tuner chip enable output
Not used
Power key detect signal input
PC power detect signal input for PC LINK
LCD back light LED control signal output
LCD reset signal output
Tuner LED control signal output
CD LED control signal output
MD LED control signal output
TC LED control signal output
Volume signal input from rotary encoder
Volume signal input from rotary encoder
TAPE REC LED control signal output
MD REC LED control signal output
TREBLE signal input from rotary encoder
MD INDICATOR LED control signal output
DSG LED control signal output
Key input signal from function switch
Key input signal from function switch
Key input signal from function switch
Key input signal from function switch
B deck reel pulse signal input
B deck half detect signal input
Model input
Analog ground
Version select input
Analog voltage reference
Analog power supply
Soft check output (open)
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