Diagrams; Ic Pin Description - Sony CDX-CA810X Service Manual

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3-1. IC PIN DESCRIPTION

• IC303 MN101C49KSH (SYSTEM CONTROL) (TYPE A)
• IC303 MN101C49KPB (SYSTEM CONTROL) (TYPE B)
Pin No.
1
2
3
4
5, 6
7
8, 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
TE
L 13942296513
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39 NCO (VCC)
40
41 NCO (VCC)
42
43
44
45
46
www
47
48
49
.
50
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Pin Name I/O
VREF– — A/D converter power supply (–) pin
LVDATA I Spectrum analyzer data input from electronic volume IC.
VSM I S-meter voltage detection input
QUALITY I Noise detection input
KEYIN1, 0 I Key input 1, 0
RCIN0 I Rotary commander key input
NIL I Not used. (Fixed at L in this set)
VREF+ — A/D converter power supply (+) pin (+5 V)
VDD — Power supply pin (+5 V)
OSCOUT O Main clock output (18.43 MHz)
OSCIN I Main clock input (18.43 MHz)
VSS — Ground
XIN I Sub clock input (32.768 kHz)
XOUT O Sub clock output (32.768 kHz)
MMOD I Memory mode select input (Fixed at L in this set)
LCDSO O Serial data output for LCD driver IC.
LCDCE O Chip enable output for LCD driver IC.
LCDCKO O Serial clock output for LCD driver IC.
CD_TSO O Serial data output for CD servo IC.
CD_TSI I Serial data input from CD servo IC.
CD_TCKO O Serial clock output for CD servo IC.
SYSRST O System reset output
BUSON O BUS ON output
KEYACK I Key acknowledge detection input
DAVN I Not used. (Fixed at L in this set)
BUIN I Backup power supply input
SIRCS I SIRCS input
TUATTIN I Tuner attenuator control input
CD_PACK I CD text pack synchronization signal input from CD servo IC.
VDD2 — Power supply pin (+5 V)
RESET I Microcomputer reset input
NOSESW I Front panel attachment detection input
BEEP O Beep output
DSTSEL2 I Not used. (Open)
TESTIN I Test mode detection input
ACCIN I Accessory power supply detection input
O Not used. (Open)
TELATT I Telephone attenuator detection input
I Not used. (Fixed at H in this set)
UNISO O SONY-BUS data output
UNISI I SONY-BUS data input
UNICKO O SONY-BUS clock output
2
I2C_SIO I/O I
NCO O Not used. (Open)
2
I2C_CKO O I
x STB ao O Standby control output for power amp IC.
y
DIAG I Mode input from power amp IC.
i
SELFSW I CD mechanism deck Self switch detection input
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SECTION 3

DIAGRAMS

8
Q Q
3 6 7 1 3
C BUS serial data input/output
C BUS serial clock output
u163
.
CDX-CA810X
2 9 9 4 2 8
Pin Description
1 5 0 5 8 2 9 9 4
m
co
Ver 1.1
9 9
2 8 9 9
13