Sony CDX-3250 Service Manual page 20

Pin No. Pin Name
59 EZ-SEL
60 SENS
61 FOK
62 LD-ON
63 NC
64 ST/MONO
65 LCD-CKO
66 LCD-SO
67 C.ALARM
68 SQ-CKO
69 CD-RST
70 SQ-SI
71 CD-SO
72 CD-LAT
73 CD-CKO
74 VREF
75 GND1
76 X-OUT
77 X-IN
78 BU-IN
79 VDD1
80 RESET
I/O
I SHIFT + input
I Information input from servo IC.
I Focus OK input
O Laser diode control
— Not used. (Connect to GND.)
I/O Used for both STEREO indicator display input and force MONO output. (FM)
O LCD driver serial clock output
O LCD driver serial data output
O Caution alarm output
O Q data read serial clock output
O Servo IC/DAC reset output
I Q data input
O Serial data output to servo IC.
O Data latch output to servo IC.
O Serial clock output to servo IC.
— Not used.
— Ground
— Crystal oscillator connection (4.5 MHz)
I Crystal oscillator connection (4.5 MHz)
I Back-up detection
— Power supply (+5 V)
I RESET input
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Pin Description