Read Sony CDX-R3300EE Service Manual online
18
CDX-R3300EE
Pin No.
Pin Name
I/O
Pin Description
67
E2P_CKO
O
Serial clock output to EEPROM communication.
68
E2P_SIO
I/O
Serial data input/output with EEPROM communication.
69
DOORIND
O
Not used. (Open)
70
AMPSTB
O
Standby control output to power amp IC.
71
NCO
O
Not used. (Open)
72
FLS.SO/LCDSO
O
Serial data output to LCD driver IC.
73
FLS.SI/LCDCE
O
Chip enable output to LCD driver IC.
74
LCDCKO
O
Serial clock output to LCD driver IC.
75 to 78
NCO
O
Not used. (Open)
79
I2C_SIO
I/O
I2C bus serial data input/output
80
NCO
O
Not used. (Open)
81
I2C_CKO
O
I2C bus serial clock output
82
DAVN
I
Not used. (Fixed at L in this set)
83
SIRCS
I
SIRCS signal input
84
NCO
O
Not used. (Open)
85
BEEP
O
Beep output to power amp IC.
86 to 88
NCO
O
Not used. (Open)
89
VDD3
—
Power supply pin (+3.3 V)
90
NCO
O
Not used. (Open)
91
VSS3
—
Ground
92
QUALITY
I
Not used. (Fixed at L in this set)
93
VSM
I
S-meter voltage detection input
94, 95
KEYIN1, 0
I
Key input 1, 0
96
RCIN0
I
Rotary commander key input
97 to 99
NCO
O
Not used. (Open)
100
VREF+
—
A/D converter power supply (+) pin (+3.3 V)
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