Sony CDX-646 Operating Instructions (English,Español, Français), Service Manual

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Pin No. Pin Name I/O Description
59 EHS I Elevator height position detect input from the RV202 (elevator height sensor) (A/D input)
60 MCK I
Input of signal for the fine adjustment (elevator height (address) adjustment; RV201) of elevator
position (A/D input)
61 NC — Not used (open)
62 BUSON I Bus on/off control signal input from the SONY bus interface (IC302) “H” bus on
63 EJECT I Eject switch (SW801) input terminal “H” active
64 MAGSW I Magazine in/out detect switch input terminal Not used (open)
65 LOAD1 I
Chucking end detect switch (SW1) input terminal
“L”: When completion of the disc chucking operation
66 LOAD2 I
Save end detect switch (SW2) input terminal
“L”: When completion of the disc save operation
67 to 70 NC — Not used (open)
71 CH.F O
Motor drive signal (save direction) output to the chucking motor drive (IC201)
“L” active *1
72 CH.R O
Motor drive signal (chucking direction) output to the chucking motor drive (IC201)
“L” active *1
73 ELVR O
Motor drive signal (elevator down direction) output to the elevator motor drive (IC301)
“L” active *2
74 ELVF O
Motor drive signal (elevator up direction) output to the elevator motor drive (IC301)
“L” active *2
75 BUCHK I Battery detect signal input terminal “H”: battery on
76 MGLK I Magazine detect switch (SW201) input “L”: magazine is set
77 SQSO O Subcode Q/text serial data output to the CXD2598Q (IC101)
78 NC — Not used (open)
79 SQCK O Subcode Q/text serial data transfer clock signal output to the CXD2598Q (IC101)
80 GRSCOR I Subcode sync (S0+S1) detection signal input terminal Not used (open)
81 NC — Not used (open)
82 SCOR I Subcode sync (S0+S1) detection signal input from the CXD2598Q (IC101)
83 to 85 NC — Not used (open)
86 VSS — Ground terminal
87 VDD — Power supply terminal (+5V)
88 NC — Not used (open)
89 LIMSW I
Sled limit in detect switch (SW3) input terminal
“L”: When the optical pick-up is inner position
90 FOK I Focus OK signal input from the CXD2598Q (IC101) “H” is input when focus is on (“L”: NG)
91 GFS I Guard frame sync signal input from the CXD2598Q (IC101) “L”: NG, “H”: OK
92 SCLK O Serial data transfer clock signal output to the CXD2598Q (IC101)
93 SENS I Internal status signal (sense signal) input from the CXD2598Q (IC101)
94 XRST O System reset signal output to the CXD2598Q (IC101) “L”: reset
95 NC — Not used (open)
96 ESPXQOK O Subcode Q OK pulse signal output terminal “L”: active Not used (open)
97 SDTO I ESP status signal input terminal Not used (open)
98 XSOE O ESP status read enable signal output terminal “L”: active Not used (open)
99 ESPXRDE O ESP read enable signal output terminal “L”: active Not used (open)
100 ESPXWRE O ESP write enable signal output terminal “L”: active Not used (open)