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Sony CDX-R3300EE Service Manual page 18

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

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