Diagrams; Ic Pin Descriptions - Sony CDX-CA900 Service Manual

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3-1. IC PIN DESCRIPTIONS

• IC501 MB90574CPMT-G-367-BNDE1 (SYSTEM CONTROL) (US, Canadian Model)
• IC501 MB90574CPMT-G-368-BNDE1 (SYSTEM CONTROL) (AEP, UK, E Model)
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12 DOOR SW/FLS SI
13
14
15
16
17
18
19
20, 21
TE
L 13942296513
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
www
45
46
47
.
48
49
50
http://www.xiaoyu163.com
Pin Name I/O
RF OK I Servo IC RFOK signal input from servo IC (IC1)
CD RST O Servo IC reset signal output to servo IC (IC1)
Servo IC command/parameter identification signal output to servo IC (IC1)
A0 O
Command transmission: "L"
STB O Servo IC data storob signal output to servo IC (IC1) Data latch: "L"
ATT O System mute control signal output
XTAL EN O Not used in this set.
LIMIT I CD mechanism limit switch signal input (SW3)
VCC — Power supply pin (+5 V)
AMP ATT O Power amp mute signal output to power amp (IC381)
E2PSIO I/O EEPROM data signal input/output with tuner unit (TUX201)
E2PCKO O EEPROM clock signal output to tuner unit (TUX201)
I Front panel open/close detection signal input/Flash write data signal input
FLS SO O Flash write data signal output
BUS ON O Bus on control signal output
BEEP O Beep signal output to power amp (IC381)
(NCO) O Not used. (Open)
UNISI I SONY bus data signal input
UNISO O SONY bus data signal output
UNICKO O SONY bus clock signal output
(NCO) O Not used. (Open)
SYSRST O System reset signal output to bus interface (IC601)
(NCO) O Not used.
SIRCS I Remote control data signal input
TSI I Servo IC serial data signal input from servo IC (IC1)
TSO O Servo IC serial data signal output to servo IC (IC1)
TCKO O Servo IC serial clock signal output to servo IC (IC1)
PH1 I CD mechanism PH1 detection signal input Not used in this set.
CD DSW I CD mechanism down switch signal input (SW4)
IN SW/PH2 I CD mechanism disc-in switch signal input (SW1)
PH3 I CD mechanism PH3 detection signal input Not used in this set.
CD LM LO O CD mechanism loading motor control signal output
VSS — Ground pin
C — Capacitance pin of power stabilized
CD LM EJ O CD mechanism eject motor control signal output
AMP ON O Amp on signal output to power amp (IC381) "L": OFF, "H": ON
VOLATT O Electronic volume mute signal output to electronic volume (IC301) "L": Mute
DVCC — D/A converter VREF input (+5 V)
DVSS — D/A converter ground pin
ADSO1 O ADSO select switch output 1
ADSO2 O ADSO select switch output 2
AVCC — Analog power supply pin (+5 V)
AVRH — A/D convert Vref+ input (+5 V)
AVRL — A/D convert Vref– input (0 V)
AVSS — Analog ground pin
KEYIN0 x ao I Key signal input
y
NC O Not used. (Open)
i
RC IN0 I Rotary commander signal input from remote in jack (J651)
(NCO) O Not used. (Open)
QUALITY I Tuner noise detection signal input (E model)
http://www.xiaoyu163.com
SECTION 3

DIAGRAMS

8
Q Q
3 6 7 1 3
u163
.
CDX-CA900/CA900X
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