Sony CDX-C90R Service Manual page 3

Pin No. Pin Name
60 BU.IN
61 BUSON
62 IN SW
63 SELF SW
64 TX CE
65 SCK2
66 SI2
67 CD DATA
68 ESPXWRE
69 ESPXRDE
70 ESPXLT
71 ESPXSOE
72 VDD
73 HIN
74 TEXT.ON/OFF
75 PH1
76 FBTBSEL
77 CDOSEL
78 – 80 —
I/O
I Back-up power detection input
I Bus on control input
I Disc in switch input (SW1)
I Self switch input (SW2)
O EEPROM chip enable output
O Sub Q read clock output
I Sub Q 80 bit, PCM peak and level data 16 bit input
O CD signal process serial data output
O Write signal output to DRAM controller.
O Read signal output to DRAM controller.
O Serial data latch output to DRAM controller.
O XSOE signal output to DRAM controller.
— Power supply
I Fixed at "H" in this set.
I Fixed at "H" in this set.
I Not used in this set.
I Not used in this set.
I Not used in this set.
— Not used in this set.
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Pin Description