Sony CDX-C680 Service Manual page 34

Pin No. Pin Name
55 RAMBU
56 POWSEL
57 EQ-SEL
58 TESTIN
59 DOORIND
60 TIRPLAY
61, 62 SUB-SW1, 0
63 VSS
64 VOLCE
65 MUTE
66 VOLSO/SUBSO
67 VOLCKO/SUBCKO
68 SUBCE
69 FLASH-W
70 I2CSIO
71 I2CCKO
72 RC-IN1
73 X1A
74 X0A
75 DAVN
76 KEYACK
77 BU-IN
78 ILLIN
79 TELMUTE
80 NOSESW
81 ACCIN
82 – 85 TIR-D0 – D3
86 (VCC)
87 (VSS)
88, 89 (VCC)
90 RST
91 VSS
92 X0
93 X1
94 VCC
95 TIR-BUSY
96 TIR-WR
97, 98 TIR-CE
99 TIR-RES
100 TIR-PDWN
101 TIR-RD
102 MTLIN
103 AM STIN
104 REEL
105 POS0
106 POS1
107 POS2
108 POS3
109 LM-EJ
110 LM-LOD
111 CM-ON
112 TAPEON
113 N-ROUT
I/O
I RAM reset detection input
I Power select initial setting input
I Equalizer connection with/without detection initial input
I Test mode setting detection input
O Door indicator output
O Audio line select control output at TIR playback. (Not used in this set.)
O Simple SUB WOOFER control output 1, 0
— GND
O Electric volume serial chip enable output
O System mute control output
O Main/Sub volume serial data output
O Main/Sub volume serial clock output
O Sub volume serial chip enable output
I Flash write in mode detection input
I RDS serial data input
I RDS serial clock input
I Rotary commander input
— Low speed oscillation input (32.768 kHz)
— Low speed oscillation input (32.768 kHz)
I RDS IC data taking in detection input (Not used in this set.)
I Key input acknowledge
I Back-up power detection input
I Illumination line detection input
I Telephone mute detection input
I Front panel detachable detection input
I Accessory power detection input
I/O TIR IC command input/output 0 – 3 (Not used in this set.)
— Connect to power supply pin.
— Connect to GND.
— Connect to power supply pin.
— Microcomputer reset input
— GND
— High speed oscillation input (3.68 MHz)
— High speed oscillation input (3.68 MHz)
— Power supply pin (+5 V)
I TIR IC BUSY output monitor pin (Not used in this set.)
O TIR IC data write in pulse output (Not used in this set.)
O TIR IC chip enable output (Not used in this set.)
O TIR IC reset/power down output (Not used in this set.)
O TIR IC power down output (Not used in this set.)
O TIR IC data read in pulse output (Not used in this set.)
I Auto METAL detection input (Not used in this set.)
I AM stereo detection input (Not used in this set.)
I Tape reel table rotation detection input (Not used in this set.)
I Tape position detection input 0
I Tape position detection input 1
I Tape position detection input 2
I Tape position detection input 3
O Tape loading motor control output (Eject direction) (Not used in this set.)
O Tape loading motor control output (Loading direction) (Not used in this set.)
O Tape capstan motor control output (Not used in this set.)
O Tape power control output (Not used in this set.)
O Tape forward/reverse detection output (Not used in this set.)
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Pin Description