Sony CDX-505RF/EXCD-3RF Service Manual page 21

Pin No. Pin Name I/O
51 SQCLK O
52 SUBQ I
53 — —
54 — —
55 MGLK I
56 SCOR I
57 SENS2 I
58 PWM O
59 — —
60 MAG.SW I
61 BUCHECK I
62 W.UP I
63 C.OUT I
64 EEDATA I/O
65 EECLK O
66 EEINIT I
67 — —
68 SINGLE I
69 FOK I
70 GFS I
71 SENS1 I
72 VDD —
73 — —
74 CD CLK O
75 CD XLT O
76 CD DATA O
77-80 — —
Output of clock signal to CXD2530Q (IC101)
Input of subcode Q data signal from CXD2530Q (IC101)
Not used
Connected to the power supply
Input of magazine eject completion detect switch (SW301)
Input of subcode sync detect signal from CXD2530Q (IC101)
Input of sense signal from CXA1992AR (IC11)
Output of PWM for control to elevator motor drive (IC301)
Not used
Input of magazine detection switch (SW302)
Input of backup detection detection
Input of Bus on or EJECT key
Input of track counting signal
Input/output of data signal to E
Output of clock signal to E 2 PROM (IC303) Not used
2
Input of OK signal from E PROM (IC303) fixed at "L"
Not used
Selection of single mode "L": Single CD playing
Input of focus initialize signal from CXA1992AR (IC11) and CXD2530Q (IC101)
Input of guard frame sync signal from CXD2530Q (IC101)
Input of sense signal from CXD2530Q (IC101)
Power supply
Connected to the power supply
Output of serial data transfer clock signal to CXD2530Q (IC101)
Output of latch signal to CXD2530Q (IC101)
Output of serial data signal to CXD2530Q (IC101)
Not used
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Function
"L": Magazine detected
"H": Backup on
2
PROM (IC303) Not used
"L": Eject completed