Sony CDX-F7700 Service Manual page 18

CDX-F7700/F7705X
Pin No. Pin Name
53 CD LM EJECT
54 CD RESET
55 CD AO
56 CD STB
57 (NCO)
58 CD RF OK
59 CD ON
60 VCC2
61 DISP RESET
62 VSS
63 TEST IN
64 BUS ON
65 SYS RST
66 BUS/AUX
67 (NCO)
68 ACC IN
69 ILL IN
70 RC IN1
71 CDM ON
72 CD SELF SW
73 TU ATT IN
74 ZERO DET1
75 ZERO DET2
76 Z ATT
77 (NCO)
78 (NCO)
79 ROMC EN
80 QUALITY
81 MPTH
82 VSM
83 SA IN
84 KEY IN1
85 KEY IN0
86 RC IN0
87 KEY ACK2
88 KEY ACK0
89 KEY ACK1
90 DOORING
91 RAM BU
92 FLD ON
93 FL ON
94 AVSS
95 DISP CE
96 VREF
97 AVCC
98 DISP SI/RX
99 DISP SO/TX
100 DISP CKO
18
I/O
O CD eject signal output
O CD reset signal output
O CD AO signal output
O CD strobe signal output
O Not used
I CD RF OK signal input
I CD ON signal input
— Power supply pin (+5V)
O Display CPU reset signal output
— Ground
I Test mode signal input
O BUS ON signal output
O System reset signal output
O BUS AUDIO/AUX-IN select signal output
O Not used
I ACC power supply check signal input
I ILL check signal input
I Rotary commander signal input
I CD power supply ON signal input
I CD SELF switch detection signal input
I Tuner attenuator zero cross signal input
I ZERO detection signal input 1
I ZERO detection signal input 2
I Z mute signal input
O Not used
O Not used
O Connecting to ground.
I Tuner noise detection signal input
O Not used
I S-meter signal input
I Spectrum analyzer data input
I Key signal input
I Key signal input
I Rotary commander signal input
I Rotary commander ACK signal input
I Key ACK signal input
I Key ACK signal input
O Sub panel LED power supply control signal output
I RAM back-up input
O FL driver power supply control signal output
O FL power supply control signal output
— Ground
O Display CPU chip enable output
— AD converter reference voltage (+5V)
— Power supply pin (+5V)
I Display CPU serial data input
O Display CPU serial data output
O Display CPU serial clock output
Pin Description