CQ-EF7380A (serv.man2) - Panasonic Car Audio Service Manual (repair manual). Page 8

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8.2. Display Block
IC901 : YEAMLC75853
Pin
No.
Port
Description
I/O
(V)
1-15 S1-S15
LCD segment data
O
2.5
16-19 S16-S19
Not used
-
-
20-40 S20-S40
LCD segment data
O
2.5
41-43 COM1-3
LCD common
O
2.5
44-47 KS1-4
Key scan
O
0.9
48,49 KS5, 6
Not used
-
-
50-54 KI1-5
Key data
I
0
55
TEST
(Connecting to ground)
-
0
56
VDD
+5V power supply
-
5.1
57
VDD1
Ground through capacitor terminal
-
3.3
58
VDD2
Ground through capacitor terminal
-
1.7
56
Vss
Ground
-
0
60
OSC
CR oscillator terminal
-
3.9
61
DO
LCD data
O
4.4
62
CE
LCD driver chip enable
I
0
63
CL
Clock for LCD
I
0
64
DI
LCD data
I
0
8.3. CD Changer Block
IC201 : MN662783RPW1
Pin
No.
Port
Description
I/O
(V)
1
VDD
+5V power supply
-
5.0
2
D0
D-RAM data
I/O
2.3
3
D1
D-RAM data
I/O
1.8
4
/WE
D-RAM data write
O
4.9
5
/RAS
D-RAM row address strobe
O
3.4
6
D2
D-RAM data
I/O
0.8
7
D3
D-RAM data
I/O
0
8
/CAS0
D-RAM columun address strobe
O
3.9
9
/CAS1
D-RAM columun address strobe
O
0
10
A8
D-RAM address
O
0.6
11
A7
D-RAM address
O
1.1
12
A6
D-RAM address
O
0.7
13
A5
D-RAM address
O
0
14
A4
D-RAM address
O
1.1
15
A9
D-RAM address
O
0.4
16-18 A0
D-RAM address
O
1.0
19
A3
D-RAM address
O
0
20
VSS2
Ground
-
0
21
VDD2
+5V power supply
-
5.0
22,23
-
Not used
-
-
24
TVD
Traverse motor control
O
2.5
25
PC
Not used
-
-
26
ECS
Spindle motor control
O
2.4
27
TRD
Tracking coil drive
O
2.5
28
FOD
Focus coil drive
O
2.4
29
FBAL
Focus balance
O
1.9
30
TBAL
Tracking balance
O
3.0
31
VREF
Refence voltage
I
2.5
32
FE
Focus error
I
2.5
33
TE
Tracking error
I
2.5
34
RFENV
RF envelope
I
2.5
35
OFT
Off track signal
I
0
36
/RFDET
RF detecting signal
I
0
37
BDO
Drop-out signal
I
0
38
LDON
Laser on signal
O
4.5
39
ARF
RF signal
I
2.5
40
IREF
Reference current input
I
1.2
41
DRF
Bias for DSL
I
2.4
42
DSLF
Loop filter for DSL
I/O
2.5
43
DSLF2
Loop filter for DSL
I/O
2.2
44
PLLF
Loop filter for PLL
I/O
1.4
45
VCOF
Not used
-
-
46
AVDD2
+5V power supply
-
5.0
47
AVSS2
Ground
-
0
48
OUTL
L channel output
O
2.3
49
AVSS1
Ground
-
0
50
OUTR
R channel output
O
2.3
51
AVDD1
+5V power supply
-
4.7
52-54
-
(Connecting to ground)
-
0
55
FLAG
Flag output
O
0
56
FCLK
Frame clock
O
0
57-59
-
Not used
-
-
60
TX
Not used
-
-
61
MCLK
Clock for I/F command
I
1.0
62
MDATA
Date for I/F command
I
3.1
63
MLD
I/F command load
I
5.0
64
BLKCK
Subcode block clock
O
0
65
SQCK
Ext.clock for sub code-Q
I
5.0
66
SUBQ
Code for sub. code-Q
O
3.8
67
DMUTE
Mute input
I
0
68
STAT
Status signal
O
5.0
69
/RST
Reset input
I
5.0
8
CUSTOM MADE FOR SUBARU / CQ-EF7380A
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