Toyota CQ-ES0470K Service Manual page 7

Audio component, am/fm mpx electronic tuning radio with stereo cassette tape player and 6-disc cd changer
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Pin
Port
Description
No.
82 VDD
Analog voltage input for the
A/D converter
83 AVDD
Standard Voltage for the
A/Dconverter
84 GND
Ground for the A/D converter
(AVSS)
85 LANIN
AVC-LAN data input
86 LANOUT AVC-LAN data output
87 GND
Connecting to ground
88 CAM-A/B H: Side B L: Side A
89 ILL-DET H: Illumi off L: Illumi on
90 SW1
Activates same period signals
<DQSY>
with H->L->H (Due to an
inverted circuit) (Interrupted
when normal)
91 +B DET
H: +B on L: +B off
92 ACC-
H: ACC off L: ACC on
DET
93 SW3
H: SW3 off L: SW3 on
<NC>
94 NC
Not used
95 FLASH
Flash rom data input
SO
(Independent of the
microcomputer)
96 FLASH
Flash rom data output
SI
(Independent of the
microcomputer)
97 NC
Not used
98 T-IN
H: No tape L: With Tape
99 END-B
Tape end detector B
100 END-A
Tape end detector A
6.2.
Display Block
IC901 : YEAMPD32B015
Pin
Port
No.
1
LED1
Led Output (green)
2
LED2
Led Output (red)
3
LED3
Led Output (brightness)
4
LED4(NC)
5
VSS
Connecting to ground
6
VLC5
LCD Control Voltage 5
7
VLC4
LCD Control Voltage 4
8
VLC3
LCD Control Voltage 3
9
VLC2
LCD Control Voltage 2
10
VLC1
LCD Control Voltage 1
11
VLCD
LCD Control Voltage 0
12
VDD
Connecting to 5 volts
13
SYNC
Synchronized input
14
LCD OFF
LCD Control(When the LCD
15
RESET
16
KEY REQ
Key request output
17
SCK
Control clock input
18
DATA
Data input/output
19
STB
Strobe input
20
OSC IN
Oscillation Input
21
OSC OUT
Oscillation Output
22
KEY 1
Key scan input
23
KEY 2
Key scan input
24
KEY 3
Key scan input
25
KEY 4
Key scan input
26-
SEG1/KS1 -
Segment/Key-scan input
33
SEG8/KS8
34-
SEG9 - SEG60
Segment output
85
86-
SEG61/COM14 -
Segment / common output
89
SEG64/COM11
90-
(NC)
92
I/O
Volts (V)
FM AM CD TA
I
4.9 4.9 4.9 4.9
I
4.9 4.9 4.9 4.9
-
0
0
0
I
0
0
0
O
0
0
0
I
0
0
0
I
0
0
0 4.9
I
4.9 4.9 4.9 4.9
I
4.9 4.9 0 4.9
I
4.9 4.9 4.9 4.9
I
0
0
0
I
4.9 4.9 4.9 4.9
I
-
-
-
I
0
0
0
O 4.9 0
0
O
0
0
0
I
4.9 4.9 4.9 0
I
0
0
0 1.5
I
0
0
0 1.5
Description
I/O
Volts
O
O
O
-
-
-
-
-
-
-
-
-
-
-
I
is down)
Reset
I
O
I
I/O
I
I
O
I
I
I
I
O
O
O
-
-
Pin
Port
No.
93-
COM7 - COM0
PE
100
0
0
0
0
0
-
0
0
0
(V)
1.8
1.5
0
-
0
0
1.5
3.0
3.0
4.5
6.1
5.0
5.0
5.0
5.0
0
0
5.0
0
2.4
2.5
0.9
0.9
1.0
1.0
3.0
3.0
3.0
-
7
Description
I/O
Volts
Common 7-0
O
CQ-ES0470K
(V)
3.1

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