Read Panasonic CN-VM4270A Service Manual online
Pin
No.
Name
Description
I/O
Vol.
(V)
217 FLCS1 (NC)
-
-
-
218 FLCS0 (NC)
-
-
-
219 WAIT
Bus Wait Signal Input
O
3.3
220 GND
GND
-
0
221 RAS
DRAM RS Designation Signal
Output
Output
O
2.8
222 CASLL
Byte Access Signal for DRAM
O
2.8
223 VCC3
+3.3V Power Supply
-
3.3
224 CASLH
Byte Access Signal for DRAM
O
1.7
225 WE0
Byte Access Signal
O
2.3
226 GND
GND
-
0
227 WE1
Byte Access Signal
O
2.3
228 CASHL
Byte Access Signal for DRAM
O
2.4
229 CASHH
Byte Access Signal for DRAM
O
2.4
230 CS0
CS0 Area Access Input
I
3.2
231 CS1
CS1 Area Access Input
I
3.2
232 CS2
CS2 Area Access Input
I
2.3
233 CS3
CS3 Area Access Input
I
3.2
234 GND
GND
-
0
235 CS4
CS4 Area Access Input
I
3.2
236 RD
Read Signal Input
I
3.2
237 VCC3
+3.3V Power Supply
-
3.3
238 RD/WR
Read/Write Signal Input
I
2.8
239 BS
Bus Cycle Start Flag Input
I
2.8
240 GND
GND
-
0
9.2. Sub Block
IC401 C2BBED000001
Pin
No.
Name
Description
I/O
Vol.
(V)
1
NC
(Conecting to ground)
-
0
2
PLL A (NC)
-
-
-
3
PLL B (NC)
-
-
-
4
PLL C (NC)
-
-
-
5
PLL D (NC)
-
-
-
6
TAIL
Illumination signal
I
0
7
NC
-
-
-
8
PKB
Parking brake signal
I
0
9
VSS
(Conecting to ground)
-
0
10
INIITA
initialize A
I
0
11
RI
Modem receive signal detection
I
5
12
N0M RES
(Conecting to ground)
-
0
13
N0M VUP
(Conecting to ground)
-
0
14
DCD
mModem carry signal detection
I
5
15
NC
(Conecting to ground)
-
0
16
NC
(Conecting to ground)
-
0
17
SD
-
-
5
18
ATT L (NC)
-
-
-
19
ATT R (NC)
-
-
-
20
ATTP0
Mute signal (for Power Amp.)
O
0
21
EJECT IN
EJECT switch detection
I
0
22
WP
-
-
-
23
CFPON (NC)
-
-
-
24
VSS
(Conecting to ground)
-
0
25
SMEN (NC)
-
-
-
26
ACC VOUT
ACC control output
O
5
27
VOL0
Volume control 0
O
9.3
28
VOL1
Volume control 1
O
9.3
29
VOL2 (NC)
-
-
-
30
BE RES
Becon Unit reset
O
5
31
NAVI
MUTE(NC)
MUTE(NC)
Navi mute signal
O
-
32
NC
(Conecting to ground)
-
0
33
DISP
CONT(NC)
CONT(NC)
-
-
-
Pin
No.
Name
Description
I/O
Vol.
(V)
34
NC
(Conecting to ground)
-
0
35
RESET
Reset
I
5
36
REM IN
Remocon data input
I
0
37
NC
(Conecting to ground)
-
0
38
ACC VIN
ACC detection
I
5
39
SUB INT
Sub DPU interrupt
I
5
40
VDD
+5V power supply
-
5
41
X2
Crystal OSC
-
2.9
42
X1
Crystal OSC
-
2.5
43
IC
(Conecting to ground)
-
0
44
XT2 (NC)
-
-
-
45
NC
(Pull down)
-
0
46
AVSS
Ground
-
0
47
S METER
S meter signal input
I
0.4
48
VACC
ACC voltage detection
I
2.6
49
LVD
Low voltage detection
I
0
50
CDET
Card detect signal input
I
3.3
51
CFWP
Write Protect Media
I
0
52
NC
(Conecting to ground)
-
0
53
NC
(Conecting to ground)
-
0
54
NC
(Conecting to ground)
-
0
55
AVDD
+5V power supply
-
5
56
AVREF
A/D reference voltage
-
5
57
TXD0
TX data (for Gate Array)
I
0
58
RXD0
RX data (for Gate Array)
O
0
59
SCK0
Clock (for Gate Array)
I/O
5
60
SIREQ (NC)
-
-
-
61
FM CE
VICS Tuner enable
O
0
62
FM DI
VICS Tuner data
I
5
63
FM DO
VICS Tuner data
O
0
64
FM CL
VICS Tuner clock
O
5
12
MAZDA / CN-VM4270A
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