Sony mex-1gp Service Manual page 39

Pin No. Pin Name
54 TU_ATTIN
55 DAVN
56 DIAG
57 NC
58 UNI_SI
59 UNI_SO
60 UNI_SCK
61 BUS_ON
62 SYS_RST
63 TEL_ATT
64 ACC_IN
65 SIRCS
66 RAM_BU
67 TEST_IN
68 FLASH_W
69 NOSE_SW
70 NC
71 NC
72 DOOR_SW
73 DOOR_IND
74 RC_IN1
75 XKEY_ON
76 NC
77 RESET
78 NC
79 X1A
80 X0A
81 VSS
82 X0
83 X1
84 VCC+3.3
85 to 88 NC
89 Z_MUTE
90 NCO
91 DEMO_SEL
92 NC
93 NC
94 CD_ON
95 CDM_ON
96 NC
97 EJECT_OK
98 NC
99 FP_ATT
100 FMP_SW
I/O
I Tuner mute zero cross detect signal input
I RDS data input
I Power AMP status signal input
— Not used (Open)
I Bus control data input
O Bus control data output
O Bus control clock output
O Bus ON signal output
O System reset output
I Telephone attenuate detect signal input
I Accessory power supply detect signal input
I Remote control (infrared rays) signal input
— Not used (Pull down)
I Test mode detect signal input
I Memory mode signal input
I Front panel detect signal input
I Not used (Open)
I Not used (Open)
I Front panel open/close detect signal input
O Door indicator on/off signal output
I Rotary commander shift key signal input
O A/D converter power supply control signal output
— Not used (Open)
I Reset key signal input
— Not used (Open)
I Sub clock input (32.768kHz)
O Sub clock output (32.768kHz)
— Ground
I Main clock input (18.432MHz)
O Main clock output (18.432MHz)
— Power supply pin (+3.3V)
— Not used (Open)
I CD zero cross mute detect signal input
— Not used (Open)
— Not used (Open)
— Not used (Open)
— Not used (Open)
I CD servo power control request signal input
I CD deck power control request signal input
— Not used (Open)
O CD eject OK signal output
— Not used (Open)
O Mute signal output
O Tuner/Memory play select signal output
Pin Description
MEX-1GP
39