Read Sony CDX-L410 Service Manual online
12
CDX-L410
SECTION 3
DIAGRAMS
3-1. IC PIN DESCRIPTION
• IC501 MN101C49KTD2 (SYSTEM CONTROL)
Pin No.
Pin Name
I/O
Pin Description
1
VREF–
—
Rated voltage – for A/D converter.
2
VSM
I
S-meter voltage detection input
3
NC
—
Not used. (Connect to ground in this set)
4
KEYIN1
I
Key input 1
5
KEYIN0
I
Key input 0
6
RCIN0
I
Rotary commander input 0
7
QUALITY
I
Noise detection input
8
MPTH
I
Tuner multi-path detection input
9
NC
—
Not used. (Connect to ground in this set)
10
VREF+
—
Rated voltage + for A/D converter. (+5 V)
11
VDD
—
Power supply pin (+5 V)
12
OSCOUT
O
Oscillator output (18.432 MHz)
13
OSCIN
I
Oscillator input (18.432 MHz)
14
VSS
—
Ground
15
XIN
I
Oscillator input (32.768 kHz)
16
XOUT
O
Oscillator output (32.768 kHz)
17
MMOD
—
Mode selector (Connect to ground in this set)
18
LCDSO
O
LCD serial data output
19
LCDCE
O
LCD chip enable output
20
LCDCKO
O
LCD serial clock output
21
CD_TSO
O
CD text serial data output
22
CD_TSI
I
CD text serial data input
23
CD_TCKO
O
CD text serial clock output
24
NC
—
Not used. (Open)
25
NC
—
Not used. (Open)
26
KEY ACK
I
Key acknowledge detection input
27
DAVN
I
RDS data block synchro detection input
28
BUIN
I
Back-up power detection input
29
NC
I
Not used. (Connect to ground in this set)
30
CD_SELFSW
I
CD self switch input
31
CD_PACK
I
CD pack synchro signal input
32
NC (VCC)
—
Not used. (Connect to VDD in this set)
33
RESET
I
Reset input
34
NC
—
Not used. (Fixed at H in this set)
35
BEEP
O
Beep output
36
NC
—
Not used. (Open)
37
TESTIN
I
Test mode detection input
38
ACCIN
I
Accessory power detection input
39
NC (VCC)
—
Not used. (Open)
40
TELATT
I
Telephone attenuate detection input
41
NC (VCC)
—
Not used. (Connect to VDD in this set)
42
UNISO
O
SONY BUS data output
43
UNISI
I
SONY BUS data input
44
UNICKO
O
SONY BUS clock output
45
I2C_SIO
I/O
I
2
C BUS serial data input/output
46
NC
—
Not used. (Open)
47
I2C_CKO
O
I
2
C BUS serial clock output
48
NC
—
Not used. (Open)
49
TUNON
O
Tuner power control output
50
PW_ON
O
System power control output
51
TSTB
O
CD text strobe output
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