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SECTION 6
DIAGRAMS
6-1. EXPLANATION OF IC TERMINALS
IC801 SYSTEM CONTROL (CXP83620-016Q)
Pin No.
Pin name
I/O
Description
1
SCOR
I
CD SCOR input.
2
SENSE
I
CD SENS input..
3
R-MUTE
O
Radio muting signal output.
4
ADJ
O
DC 1.7V output for beep signal.
–––––––––––
5
BEEP
O
Beep signal output.
6
YMLD
O
LATCH signal output for ESP controller (IC704).
7
YMCLK
O
Serial clock output for ESP controller (IC704).
8
ZSENSE
I
Serial data input from ESP controller (IC704).
9
YMDATA
O
Serial data output for ESP controller (IC704).
10
SQCK
I
CD SQCK input.
11
SQSO
I
CD SUB Q data input.
12
P-CON
O
Power ON/OFF control signal output.
13
DOOR
I
CD door switch (S701) input.
14
LOAD
O
Battery check output.
15
XRST
O
System reset output.
16
LATCH
O
CD system LATCH output.
17
CLK
O
CD serial clock output.
18
DATA
O
CD serial data output.
19
C-MUTE
O
CD mute signal output.
20
ESP
O
ESP ON/OFF signal output.
21
INIT
–
Not used (OPEN).
22
SIMUKE
I
Destination detect input (Fixed at “H”).
23 – 25
KEY1-3
I
Key input.
26
REG-CHK
I
DC regrator output voltage detect input.
27
BACK UP-CHK
I
Back-up battery voltage detect input.
28
BATT-H
I
Main battery high voltage detect input.
29
BATT-M
I
Main battery low voltage detect input.
30
RESET
I
System reset input.
31
EXTAL
I
System clock oscillator input terminal (4.19MHz).
32
XTAL
O
System clock oscillator output terminal (4.19MHz).
33
VSS
–
Ground.
34
VL
I
Reference voltage input.
35 – 37
VLC1-3
I
Reference voltage input.
38 – 41
COMO 0-3
O
LCD common output.
42 – 62
SEG 0-20
O
LCD segment output.
63
V-CLK
O
Volume clock output.
64
DATA
O
Volume data output.
65
V-LATCH
O
Volume LATCH output.
66
RADIO
O
Function output for radio.
67
A-MUTE
O
Audio mute signal output.
68
BEEP-H/L
O
Beep level high/low select output.
69
TU-CLK
O
PLL IC clock output.
70
TU-DATA
O
PLL IC data output.
