Sony CDX-454RF - Compact Disc Changer System, Service Manual

Page: 37 / 50

37
CDX-454RF/454XRF
Pin No. Pin Name I/O Description
71 CH.F O Motor drive signal (save direction) output to the chucking motor drive “L” active
72 CH.R O Motor drive signal (chucking direction) output to the chucking motor drive “L” active
73 ELVR O Motor drive signal (elevator down direction) output to the elevator motor drive “L” active
74 ELVF O Motor drive signal (elevator up direction) output to the elevator motor drive “L” active
75 BUCHK I Battery detection signal input “H”: battery on
76 MGLK I Magazine detect switch input terminal “L”: magazine is set
77 SQSO I Subcode Q/text serial data input from the DSP
78 NC — Not used
79 SQCK O Subcode Q/text serial data transfer clock signal output to the DSP
80 KEYACK I
Input of acknowledge signal for the key entry
Acknowledge signal is input to accept from the remote commander in the power off status
81 NC — Not used
82 SCOR I Subcode sync (S0+S1) detection signal input from the DSP
83 SIRCS I SIRCS signal input terminal Not used
84 TEX I Sub system clock input terminal Not used
85 TX O Sub system clock output terminal Not used
86 VSS — Ground terminal
87 VDD — Power supply terminal (+5V)
88 NC — Not used
89 LIMSW I
Sled limit in detect switch input terminal
“L”: When the optical pick-up is inner position
90 FOK I Focus OK signal input from the DSP “H” is input when focus is on (“L”: NG)
91 GFS I Guard frame sync signal input from the DSP “L”: NG, “H”: OK
92 SCLK O Serial data transfer clock signal output to the DSP
93 SENS I Internal status signal (sense signal) input from the DSP
94 XRST O System reset signal output to the DSP “L”: reset
95 ADON O Power supply on/off control signal output for the A/D converter “L”: power on
96 PLLCE O Chip enable signal output to the FM stereo transmitter “H” active
97 PLLCLK O Serial data transfer clock signal output to the FM stereo transmitter
98 PLLDATA O Serial data output to the FM stereo transmitter
99, 100 NC — Not used