Sony CDX-M700R Service Manual page 40

• IC801 MB90574BPMT-256-BND (CDX-M700R) (SYSTEM CONTROL)
IC801 MB90574BPMT-255-BND (CDX-M750) (SYSTEM CONTROL)
Pin No. Pin Name
1 (NCO)
2 (AMSIN)
3 (AMSON)
4 SP LATCH
5 ATT
6 SYSRST
7 (N/R)
8 VCC
9 (NCO)
10 E2PSIO
11 E2PCKO
12 FLS SI
13 FLS SO
14 BUS-ON
15 BEEP
16 TELATT
17 UNISI
18 UNISO
19 UNICKO
20 IFWIDTH
21, 22 (NCO)
23 (MTLOUT)
24 SIRCS
25 DSPSI
26 DSPSO
27 DSPCKO
28 (DSPPLL)
29 DSPMST
30 SW SHIFT
31 VOLATT
32 TU ATT
33 VSS
34 C
35 DSPLAT
36 DSPRST
37 SHIFT
38 DVCC
39 DVSS
40 FP CTRL
41 (NCO)
42 AVCC
43 AVRH
44 AVRL
45 AVSS
46, 47 KEYIN0, 1
48 RCIN0
49 (NCO)
50 QUALITY
51 FM AGC
52 MPTH
53 VSM
40
I/O
O Not used. (Open)
I Inter-music detection input ("H": inter-music) (Fixed at "L" in this set.)
O AMS sens select output (Not used in this set.)
O Spectrum analyzer display data latch signal output to display micon.
O System attenuate control output
O Resetting for slave micon of SONY BUS system.
O Forward/Reverse select output ("L": forward, "H": reverse) (Not used in this set.)
— Power supply pin (+5 V)
O Not used. (Open)
I/O Tuner EEPROM communication input/output
I/O Tuner EEPROM communication input/output
I Flash micon write data input
O Flash micon write data output
O BUS ON output
O Beep output
I Telephone mute input ("H": mute ON)
I SONY BUS serial data input
O SONY BUS serial data output
O SONY BUS serial clock output
O Not used. (Open)
O Not used. (Open)
O Tape metal signal output ("H": metal) (Not used in this set.)
I Wireless remote data input
I Digital signal processor serial data input
O Digital signal processor serial data output
O Digital signal processor clock output
O Not used. (Open)
O Digital signal processor master slave control output
O Tuner SW (Short Wave) signal output ("H": SW signal receipt) (Not used in this set.)
O Electronic volume mute output ("L": mute ON)
O Tuner mute output ("H": mute ON)
— Ground
— Power stabilization capacitor pin
O Digital signal processor latch output
O Digital signal processor reset output
O DC/DC converter oscillation frequency shift output ("H": shift output)
— VREF input of D/A converter.
— Ground of D/A converter.
O Front panel OPEN/CLOSE motor voltage control output
O Not used. (Open)
— Analog power supply pin (+5 V)
— VREF+ input of A/D converter. (+5 V)
— VREF– input of A/D converter.
— Analog ground
I Key input 0, 1
I Rotary commander input 0
— Not used. (Open)
I Noise detection input
I FM suppression level detection input
I Tuner multi path detection input
I S-meter voltage detection input
Pin Description