Panasonic CQ-EM4582AK Service Manual ▷ View online
5 BLOCK DIAGRAM
5.1. Main Block
5
MAZDA / CQ-EM4582AK
5.2. Display Block
6
MAZDA / CQ-EM4582AK
IC601 : C2CBJG000555
Pin
No
Port
Descriptions
I/O
FM
(V)
AM
(V)
CD
(V)
1
MD/SIRIU
S
S
MD/SIRIUS displaying data
change L: MD
change L: MD
O
0
0
0
2
J56/J37
Not Used
I
0
0
0
3
NC
No Connection
-
-
-
-
4
A-PILOT
(NC)
(NC)
No Connection
-
-
-
-
5
CD
RESET
RESET
CD reset signal (L: CD reset)
O
5.2
5.2
5.2
6
CD ON
CD deck power control H: ON
O
0
0
5.1
7
SPEED
SPEED-pulse input
I
0
0
0
8
TEXT CLK MD/SIRIUS text display DATA
CLK
I
0
0
0
9
TEXT
DATA
DATA
MD/SIRIUS text dislay DATA
IN
IN
I
0
0
0
10 NC
No Connection
-
-
-
-
11 RESET
Reset input L: reset on
I
5.2
5.2
5.2
12 XT2(NC)
No Connection
-
-
-
-
13 XT1
Connecting to Vss
I
0
0
0
14 Vss
GND
-
0
0
0
15 X2
Crystal connection (main
clock)
clock)
-
1.5
1.5
1.5
16 X1
Crystal connection (main
clock)
clock)
I
1.4
1.4
1.4
17 REG OFF Connecting to ground
-
0
0
0
18 REGC
Connecting to ground at 0.1uF
-
3.6
3.6
3.6
19 Vdd
VDD (5V) power
-
5.2
5.2
5.2
20 DATA IN
Input for reading the CD-R
I
0
0
0
21 DATA
OUT
Output for reading the CD-R
O
0
0
0
22 ILL- CONT
(NC)
No Connection
-
-
-
-
23 DIM
CANCEL
IN
IN
Dimmer cancel input
H: Cancel on
H: Cancel on
I
5.2
5.2
5.2
24 LCD CLK
Not Used
O
0
0
0
25 LCD CE
Not Used
O
0
0
0
26 LCD RST
Not Used
O
0
0
0
27 LCD ON
Not Used
O
0
0
0
28 SUB
RESET
Sub microcomputer reset
L: reset ON
L: reset ON
O
5.2
5.2
5.2
29 LCD
DATA
Not Used
O
0
0
0
30 SUB-
DATA1
SW DATA
I
5.2
5.2
5.2
31 SUB-
DATA2
Functional led data
O
0
0
0
32 SUB-
DATA3
Requests for sending SW
data
data
I
0
0
0
33 SUB-CLK
Submicrocomputer clock
output
output
O
5.2
5.2
5.2
34 RDS OFF Not Used
O
0
0
0
35 P ON
Power on (ACC ON) output
H: ON(ACC5V ACC8V
ACC10V)
H: ON(ACC5V ACC8V
ACC10V)
O
5.2
5.2
5.2
36 CDP/IDC
CDP/IDC specification change
H: IDC L: CDP
H: IDC L: CDP
I
0
0
0
37 TYPE1
L
I
0
0
0
38 TYPE2
L
I
5.2
5.2
5.2
39 BOSE
BOSE spec. change
H: BOSE L: Amp
H: BOSE L: Amp
I
0
0
0
40 Vss
GND
-
0
0
0
41 Vdd
VDD (5V) Power
-
5.2
5.2
5.2
42 AUX1(NC) No Connection
-
-
-
-
43 AUX2
AUX IN (optional CN)
I
0
0
0
Pin
No
Port
Descriptions
I/O
FM
(V)
AM
(V)
CD
(V)
44 E2P DIN
Data input for E2P
I
5.2
5.2
5.2
45 E2P DATA Data output for E2P
O
0
0
0
46 E2P CLK
Clock output for E2P
O
0
0
0
47 E2P STRB Strobe output for E2P
O
0
0
0
48 AMP
CONT
H: Exterior amp-ON
O
5.2
5.2
5.2
49 (TEL
MUTE)
Not Used
I
5.2
5.2
5.2
50 VOL CLK
EVOL CLK output
O
0
0
0
51 VOL
DATA
EVOL DATA output
O
0
0
0
52 AMP
STBY
Not Used
O
5.2
5.2
5.2
53 (DIVER
IN)
Not Used
I
5.2
5.2
5.2
54 SOURCE1 Source switch
O
0
0
5.2
55 SOURCE2 Source switch
O
5.2
5.2
0
56 MUTE
Mute output H: MUTE ON
O
5.2
5.2
5.2
57 MBUS
OUT
MBUS output
O
0
0
0
58 BOSE
ACC OUT
Not Used
O
5.2
5.2
5.2
59 CAN
STBY
CAN CPU STBY L:
Communication is permitted
Communication is permitted
O
2
2
2
60 DIVER
OUT
Not Used
O
0
0
0
61 RDS
MUTE
Not Used
O
0
0
0
62 NC
No Connection
-
-
-
-
63 RADIO
ON
Not Used
O
5.2
5.2
0
64 WP
Light protect output (10PRO)
H: Write protection
H: Write protection
O
0
0
0
65 PLL DATA PLL DATA input and outpt
(10PRO)
I/O
5.2
5.2
5.2
66 CAN SI
CAN CPU signal input
I
4.6
4.6
4.6
67 CAN SO
CAN CPU signal output
O
5.2
5.2
5.2
68 SD
SEEK SD input (10PRO) L:
With electric field
With electric field
I
5.2
5.2
2.5
69 PLL CLK
PLL CLK output (10PRO)
O
5.2
5.2
5.2
70 ST
ST detection (10PRO) L: With
stereo
stereo
I
5.2
5.2
2.6
71 NC
No Connection
-
-
-
-
72 NC
No Connection
-
-
-
-
73 TEST
For IC test
I
0
0
0
74 ST SW
Steering SW signal input
I
5.2
5.2
5.2
75 +B.V
Power supply voltage
inspection
inspection
I
3
3
3
76 VCONT
VCONT inputÅiStrong electric
field)
field)
I
0.3
0.6
0
77 NOISE
RDS noise detection input
I
0
0
0
78 MP
RDS multi-pass detection
input
input
I
0
0
0
79 CLIP DET P-AMP clip detection input
I
5.2
5.2
5.2
80 SW1
NCD-9 SW1 input L: With disc
I
0
0
0
81 SW3
NCD-9 SW3 input L: With disc
I
0
0
0
82 Avdd
VDD(5V) power for AD
converter
converter
-
5.2
5.2
5.2
83 Avref
Vref for AD converter
-
5.2
5.2
5.2
84 Avss
GND for AD converter
-
0
0
0
85 RX
Connecting to ground
I
0
0
0
86 TX
OPEN
O
0
0
0
87 ACC IN
ACC voltage detection
H: ACC ON
H: ACC ON
I
5.2
5.2
5.2
88 NC
No Connection
-
-
-
-
6 TERMINALS DESCRIPTION
6.1. Main Block
7
MAZDA / CQ-EM4582AK
Pin
No
Port
Descriptions
I/O
FM
(V)
AM
(V)
CD
(V)
89 ILL DET
Illumi detection L: ILL ON
I
0
0
0
90 IG2 ON
IG2 detection input H: IG2 ON
I
0
0
0
91 MBUS IN
M BUS input
I
5.2
5.2
5.2
92 CD-EJ
CD eject input
L: EJECT key input ON
L: EJECT key input ON
I
5.2
5.2
5.2
93 BAT IN
BAT detection H: BATT ON
I
5.2
5.2
5.2
94 CD DI
CD deck serial communication
data
data
I
5
5
3.8
95 SIG IN
Serial input UART1
I
5.2
5.2
5.2
96 SIG OUT
Serial input UART2
O
4.3
4.3
4.3
97 CD CLK
CD deck serial communication
CLK
CLK
O
0
0
5.1
98 CD DO
CD deck serial communication
data
data
O
5.1
5.1
3.5
99 BEEP
BEEP OUT(3KHz;100mS)
O
0
0
0
100 ANT ON
(NC)
No Connection
-
-
-
-
Note :
Voltage measuerments are with respect to ground, with a
voltmeter (Internal resistance : 10M ohms.)
voltmeter (Internal resistance : 10M ohms.)
6.2. Display Block
IC901 : C2BBFD000560
Pin
No.
Port
Descriptions
I/O
(V)
1-5
KS1-5
Output signal for key scan
O
0
6
LED(A/C)
A/C LED output H:LED blink
O
0
7
LED
(R.DEF)
(R.DEF)
R.DEF LED output H:LED blink
O
0
8
SUB D3
Requests serial communication data
O
0
9
Vss0
Port ground
-
0
10
Vdd0
Port power supply (+)
-
5.2
11
SUB D2
Serial communication data input
I
0
12
SUB D1
Serial communication data output
O
5.2
13
SUB CLK
Serial communication clock input
I
5.2
14
DEF
Automatic heat controller
communication data
communication data
I
0
15
A/C
Automatic heat controller AMB
button output (H L:With AMB button
input)
button output (H L:With AMB button
input)
O
0
16
R/DEF
Automatic heat controller
communication clock
communication clock
O
5.2
17
FAN
Automatic heat controller
communication permitted signal
communication permitted signal
I
0
18
LED(FRE) FRE LED output H:LED on
O
0
19
LED(REC) REC LED output H:LED on
O
0
20
Vdd1
Positive power supply
-
5.2
21
AVss
Ground for A/D converter
-
0
22
SIYOU1
Reads the specifications
I
1.5
23
SIYOU2
Reads the specifiations 2
I
0.8
24
Vss0
Connecting to Vss0
I
0
25
Vss0
Connecting to Vss0
I
0
26
AVref
Standard voltage for A/D converter
-
5.2
27
AVdd
Analog power for A/D converter
-
5.2
28
RESET
System reset L: reset ON
I
5.2
29
NC
No Connection
-
-
30
Vdd0
Connects directly to Vdd0 or Vdd1
I
5.2
31
IC
Connecting to GND
-
0
32
X2
Crystal connection for main system
clock oscillator
clock oscillator
I
3.2
33
X1
Crystal connection for main system
clock oscillator
clock oscillator
-
2.7
34
Vss1
Ground
-
0
35
ACC IN
ACC detection input L:ACC ON
I
0
36
IG2 IN
IG2 detection input H:IG2 ON
I
0
37
NC
ILL detection input L:ILL ON
I
0
38
NC
Not Used
-
-
39
ILL-
Illumi control pulse input
I
5.3
40
NC
Not Used
-
-
41
PWM OUT Illumi control pulse output
O
2.6
42
RIGHT
EN.A
EN.A
Right encoder input A
I
5.2
43
RIGHT
EN.B
EN.B
Right encoder input B
I
5.2
44
LEFT
EN.A
EN.A
Left encoder input A
I
0.4
45
LEFT
EN.B
EN.B
Left encoder input B
I
0.4
46-49 KI1-4
Key scan input signal
I
0
50
KI5
No Connection
-
-
51
KI6
Key scan input signal
I
-
52
KI7
No Connection
-
-
8
MAZDA / CQ-EM4582AK
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