Sony CDX-MP30 Manual De Servicio página 32

CDX-MP30
• IC801 MN101C49KCZ(US)/MN101C49KCK(AEP,E) (System Control) (MAIN Board)
Pin No. Pin Name
1 VREF-
2 VSM
3 NIL
4 KEYIN1
5 KEYIN0
6 RC_IN0
7 QUALITY(NIL)
8 MPTH(DSTSEL)
9 FUNCSEL
10 VREF+
11 VDD
12 OSCOUT
13 OSCIN
14 VSS
15 XI
16 XO
17 MMOD
18 LCDSO
19 LCDCE
20 LCDCKO
21 to 23 NCO
24 SYSRST
25 BUSON
26 KEYACK
27 DAVN(NIL)
28 BU_IN
29 SIRCS
30, 31 NIL
32 NIH
33 RESET
34 NCO
35 BEEP
36 NCO
37 TESTIN
38 ACCIN
39 NCO
40 TELATT
41 NIH
42 BUSSO
43 BUSSI
44 BUSCKO
45 I2CSIO
46 NCO
47 I2CCKO
48 NCO
49 TUNON
50 PW_ON
51 to 65 NCO
66 AMPATT
67 AMPON
32
I/O
— Power supply for A/D converter
I S-meter voltage detection signal input from the tuner unit (TU601)
I Connected to ground
I Key signal input
I Key signal input
I Rotary commander key signal input from the remote-in jack (CNP801)
I Noise detection signal input (US: connected to ground)
I Multipass detection signal input (US: destination setting terminal)
I Function setting terminal
— Power supply for A/D converter
— Power supply
O High speed clock output
I High speed clock input
— Ground
I Low speed clock input
O Low speed clock output
— Memory mode selection input "L": single chip mode (connected to ground)
O Serial data output to the LCD driver (IC501)
O Chip enable signal output to the LCD driver (IC501)
O Serial clock output to the LCD driver (IC501)
O Not used (open)
O System reset signal output
O Bus on signal output to the bus interface
I Key acknowledge detection signal input
I RDS data block sync detection signal input (US: connected to ground)
I Back up power supply detection signal input
I Remote control signal input from the remote control receiver (IC552)
I Connected to ground
I Connected to power supply
I Microcomputer reset signal input from the reset IC (IC802)
O Not used (open)
O Beep signal output to the power amplifier (IC401)
O Not used (open)
I Test mode detection signal input
I Accessory power supply detection signal input
O Not used (open)
I TELL ATT detction signal input
I Fixed at "H"
O Sony_Bus serial data output to the bus interface IC (IC803)
I Sony_Bus serial data intput from the bus interface IC (IC803)
O Sony_Bus serial clock output to the bus interface IC (IC803)
I/O I2C bus serial data input/output
O Not used (open)
O I2C bus serial clock output
O Not used (open)
O Tuner power supply control signal output
O System power supply control signal output
O Not used (open)
O Power amplifier ATT control signal output to the power amplifier (IC401)
O Power amplifer standby control signal output to the power amplifier (IC401)
Description