Read Sony CDX-R3300 / CDX-R3300S / CXS-R330GF Service Manual online
18
CDX-R3300/R3300S
Pin No.
Pin Name
I/O
Pin Description
62
SYS RST
O
System reset signal output
63
TEL ATT
O
TEL ATT signal output Not used in this set. (Open)
64
ACC IN
I
Accessory power supply detect signal input
65
SIRCS
I
Remote control signal (infrared rays) input
66
RAM BU
O
Not used in this set. (Fixed at “L”.)
67
TEST IN
I
Test mode detect signal input
68
FLASH W
I
Memory mode changeover signal input
Normally “H” input (single chip mode) “L” after reset: Flash write mode
69
NOSE SW
O
Not used in this set. (Fixed at “H”.)
70, 71
NC
—
Not used in this set. (Open)
72
DOOR SW
I
Front panel open/close detect signal input
“L” input: Panel close, “H” input: Panel open
73
DOOR IND
O
Not used in this set. (Open)
74
RC IN1
I
E: Rotary commander shift key signal input
US, Canadian: Not used in this set. (Open)
75
XKEY ON
O
Key power supply control signal output Pin rj (KEY ACK) active: “L” output
76
NC
—
Not used in this set. (Open)
77
RESET
I
Reset signal input
78
NC
—
Not used in this set. (Open)
79
X1A
—
Oscillator connect pin (32 kHz)
80
X0A
—
Oscillator connect pin (32 kHz)
81
VSS
—
Ground pin
82
X0
—
Oscillator connect pin (3.68 MHz)
83
X1
—
Oscillator connect pin (3.68 MHz)
84
VCC+3.3
—
Power supply pin (+3.3 V)
85 to 88
NC
—
Not used in this set. (Open)
89
ZERO DET R
I
Mechanism deck mute zero closs detect signal input R
90
ZERO DET L
I
Mechanism deck mute zero closs detect signal input L
91
CD STB
O
CD servo data strob signal output Timing of data latch: “L” output
Not used in this set. (Open)
92
CD IN SW
I
CD mechanism IN-SW detect signal input Not used in this set. (Open)
93
CD LOAD
O
CD mechanism loading motor control signal output Not used in this set. (Open)
94
CD ON/EJECT
O
CD mechanism eject motor control signal output
95
CDM ON/D SW
I
CD mechanism DSW detect signal input
96
CD LIMIT
I
CD mechanism IN-LIMIT SW signal input Not used in this set. (Open)
97
RFOK
I
CD servo RFOK signal input
98
CD XRST
O
CD servo reset signal output Not used in this set. (Open)
CD servo command/parameter identification signal output
99
CD A0
O
Command transmission: “L” output, parameter transmission: “H” output
Not used in this set. (Open)
100
NC
—
Not used in this set. (Open)
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