Sony HCD-J300 Service Manual page 68

HCD-J300
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Pin No. Pin Name
52 H/P_CHECK
53 H/P_MUTE
54 AMP_MUTE
55 VOL_CLK
56 VOL_DATA
57 STK_POWER
58 LINE-MUTE
59 NC
60 NC
61 NC
62 VCC
63 NC
64 VSS
65 NC
66 FM_ON
67 TU_ON
68 TUNED
69 ST_DOUT
70 ST_CLK
71 ST_DIN
72 ST_CE
73 NC
74 POWER_KEY
TE
L 13942296513
75 PC_POWER
76 LCD_BACK_LIGHT
77 LCD-RS
78 TUNER-LED
79 CD_LED
80 MD_LED
81 TC_LED
82 VOL_A
83 VOL_B
84 TAPE REC
85 MD REC
86 TREBLE-B
87 MD_INDICATOR_LED
88 DSG-LED
89 KEY0
90 KEY1
91 KEY2
92 KEY3
93 B-SHUT(SENSOR)
94 B_HALF/REC
95 MODEL_IN
96 AG
97 SPEC_IN
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98 VREF
99 AVCC
100 SOFT_TEST
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I/O
I Headphone detect signal input
O Headphone muting control signal output
O Power amplifier muting control signal output (L=ON,H=OFF)
O Volume clock signal output
O Volume data signal output
O Power amplifier ON/OFF signal output (H=ON,L=OFF)
O Line muting control signal output (H=ON,L=OFF)
— Not used
— Not used
— Not used
— Power supply (+5V)
— Not used
— Ground
— Not used
O FM ON/OFF signal output (H=ON,L=OFF)
O Tuner power ON/OFF signal output (H=ON,L=OFF)
I TUNED detect signal input
I Tuner data signal input
O Tuner clock output
O Tuner data signal output
O Tuner chip enable output
— Not used
I Power key detect signal input
I PC power detect signal input for PC LINK
O LCD back light LED control signal output
O LCD reset signal output
O Tuner LED control signal output
O CD LED control signal output
O MD LED control signal output
O TC LED control signal output
I Volume signal input from rotary encoder
I Volume signal input from rotary encoder
O TAPE REC LED control signal output
O MD REC LED control signal output
I TREBLE signal input from rotary encoder
O MD INDICATOR LED control signal output
O DSG LED control signal output
I Key input signal from function switch
I Key input signal from function switch
I Key input signal from function switch
I Key input signal from function switch
I B deck reel pulse signal input
I B deck half detect signal input
I Model input
— Analog ground
I Version select input
— Analog voltage reference
x ao
— Analog power supply y
O Soft check output (open)
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Description
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