DOWNLOAD Panasonic CQ-EF7260A Service Manual ↓ Size: 8.06 MB | Pages: 40 in PDF or view online for FREE

Model
CQ-EF7260A
Pages
40
Size
8.06 MB
Type
PDF
Document
Service Manual
Brand
Device
Car Audio / SUBARU
File
cq-ef7260a.pdf
Date

Panasonic CQ-EF7260A Service Manual ▷ View online

7 BLOCK DIAGRAM (CD Changer Block)
6
CUSTOM MADE FOR SUBARU / CQ-EF7260A
8.1. Main Block
IC601 : C2BBGF000085
Pin
No.
Port
Description
I/O
(V)
1
BATT-DET
Batterylevel detection
I
4.7
2
ACC-DET
ACC level detection
I
4.7
3
WB.CONT
(Ground pull-down)
-
0
4
FM.CONT
FM radio power control
O
5.1
5
AM/FM.CON
T
Radio power control
O
5.0
6
CD-ON
CD controll enable
O
5.4
7
CD-RESET
CD reset
O
5.3
8
CD-SOM
CD serial data
I
4.9
9
CD-SIM
CD serial data
O
5.2
10
CD-SCKM
Shift clock for CD serial data
O
5.3
11
CD-SW1
(Ground pull-down)
I
0
12
CD-SW3
(Ground pull-down)
I
0
13
IDC.CONT
CD changer power control
O
5.2
14
DOLBY
Dolby NR control
O
0
15
M1-A
Tape main motor control
O
0
16
M1-B
Tape main motor control
O
0
17
END-A
Tape end detection
I
1.5
18
END-B
Tape end derection
I
1.6
19
VOL.CLK
Electronic volume clock
O
0
20
VOT.DATA
Electronic volume data
O
0
21
MUTE
System mute
O
0
22
AMP.C
Power Amp. stand-by
O
5.2
23
V.CONT
(Ground pull-down)
-
0
24
ILL.C
(Ground pull-down)
-
0
25
EQ/AM.IN
(Ground pull-down)
-
0
26
BIT1
Tape mode switch
I
4.9
27
AVDD
+5V power supply
-
5.2
28
BIT2
Tape mode switch
I
4.9
29
BIT3
Tape mode switch
I
0
30
SD
B/S detection
I
0
31
FM.ST
FM stereo detection
I
0.4
32
AVSS
Ground
-
0
33
REGCPU
Coupling capacitor terminal
-
3.4
34
VDD
+5V power supply
-
5.2
35
REGOSC
Coupling capacitor terminal
-
5.2
36
X2
Crystal oscillator
-
2.2
37
X1
Crystal oscillator
-
0
38
GND
Ground
-
0
39
SSC
Serch stop clear
O
0
40
GND
Ground
-
0
41
AM.IF
AM IF counter
O
0
42
FM.IF
FM IF counter
O
0
43
PLL.VDD
PLL +5V power supply
-
5.2
44
FM.OSC
FM local OSC
I
2.4
45
AM.OSC
AM local OSC
I
1.3
46
PLL.GND
Ground
-
0
47
EO0
PLL phase error
O
1.4
48
NC
No connection
-
-
49
IC
(Connecting to ground)
-
0
50
/RESET
System reset
I
4.8
51
CD.EJ
CD eject switch
I
5.1
52
TAPE.EJ
Tape eject switch
I
5.1
53-57 KI1-5
Key data input
I
0
58
AM NC
(Ground pull-down)
-
0
59
BEEP
Beep output
O
0
60
DIV ON/OFF (+5V pull-up)
-
5.0
61-66
-
Not used
-
-
67
M2
Tape sub motor control
O
0
68
M2F
Tape sub motor control
O
0.5
69
EN-B
Rotary encoder data
I
0
70
EN-A
Rotary encoder data
I
0
71
SYIYOU6
Specification setting
I
4.9
72
SYIYOU7
Specification setting
I
0
73
SYIYOU8
Specification setting
I
0
74
LCD.DIN
LCD data
I
5.1
75
LCD.CE
LCD chip enable
O
0
76
LCD.CLK
LCD shift clock
O
0
77
LCD.DOUT
LCD data
O
0
78
POWER.SW Power switch input
I
5.1
79
CD-CH.IN
CD changer data
I
5.1
80
CD-CH.OUT CD changer data
O
0
81
ILL.DET
(ACC5V pull-up)
I
5.1
82
GND
Ground
-
0
83
TEST.P
Test point
I
5.1
84
SYIYOU1
Specification setting
I
5.0
85
SYIYOU2
Specification setting
I
0
86
SYIYOU3
Specification setting
I
5.0
87
SYIYOU4
Specification setting
I
5.0
88
SYIYOU5
Specification setting
I
0
89
P.CONT
Power control
O
5.1
90
LCD.C
LCD illumi. control
O
5.1
91
TAPE.CONT Tape power control
O
4.6
92
A/B.OUT
Tape FF/REW selection
O
0
93
MS-PL/FF
MS mode control
O
0
94
MSM
MS gain control
O
0
95
MS
Tape unrecorded portion detection
I
0
96
A/B.IN
Tape side detection
I
0
97
T.LOAD
Tape loading detection
I
0
98
T-IN
Tape-in signal
I
0
99
VDD
+5V power supply
-
5.2
100
GND
Ground
-
0
Note :
Voltage measuerments are with respect to ground, with a
voltmeter (Internal resistance : 10M ohms.)
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 TERMINALS DESCRIPTION
7
CUSTOM MADE FOR SUBARU / CQ-EF7260A
8.3. CD Servo 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-A2
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
70
CSEL
(Connecting to ground)
-
0
71
PMCK
Not used
-
-
72
SMCK
Not used
-
-
73
SUBC
Not used
-
-
74
SBCK
Not used
-
-
75
/CLDCK
Not used
-
-
76
/TEST
(Connecting to VDD)
-
5.0
77
X1
Crystal oscillator
-
0.4
78
X2
Crystal oscillator
-
3.2
79
VDD1
+5V power supply
-
5.0
80
VSS1
Ground
-
0
IC301 : MN1873260AE
Pin
No.
Port
Description
I/O
(V)
1
VDD
+5V power supply
-
5.0
2
OSC2
Crystal oscillator
-
2.2
3
OSC1
Crystal oscillator
-
2.1
4
VSS
Ground
-
0
5
XI
(Connecting to ground)
-
0
6
XO
Not used
-
-
7
CM
(Connecting to ground)
-
0
8
VREFH
Reference voltage
I
5.0
9
SW13
Horizontal origin
I
4.9
10
SW12
Shuter SW
I
4.9
11
SW11
Clump SW
I
0
12
SW10
Play SW
I
0
13
SW4
Shuter SW
I
4.9
14
SW3
Tray origin SW
I
0
15
SW2
Inner SW
I
4.8
16
SW1
Outer SW
I
4.9
17
VREFL
(Connecting to Ground)
-
0
18
/RESET
Reset input
I
4.9
19
-
(Ground pull-down)
-
0
20
SCKM
Clock for serial data
I
5.0
21
SIM
CD changer serial data
I
1.3
22
SOM
CD changer serial data
O
4.3
23
SQCK
Ext. clock for sub. code-Q
O
5.0
24
SUBQ
Code for sub. code-Q
I
1.6
25
-
Not used
-
-
26
-
(Ground pull-down)
-
0
27
CD.ON
CD changer start/stop
I
5.0
28
ROM MUTE
-
-
-
29
BLKCK
Sub. code block clock
I
0
30
P.ON
In operation CPU
O
5.0
31
MUTE
Mute output
O
5.0
32
-
(Ground pull-down)
-
0
33
SENS
Not used
O
0
34
CLVS
Not used
O
5.0
35
FLOCK
Not used
O
0.2
36
TLOCK
Not used
O
0
37
VMI
Horizontal motor control
O
2.5
38
HMI
Vertical motor control
O
0
39
HVMUTE
H/V motor mute
O
0
40-42
-
(Ground pull-down)
-
0
43
SW9
Disc-in (B) SW
I
0
44
SW8
Disc-in (L) SW
I
0
45
SW7
Disc-in (F) SW
I
0
46
SW6
Disc push SW
I
0
47
SW5
Tray hight SW
I
4.5
48
BDO
Drop-out signal
I
0
49
DQSY
Not used
-
-
50
/RST
Reset output
O
5.0
51
STAT
Status signal
I
2.1
52
DMUTE
Mute output
O
0
53
-
Not used
-
-
8
CUSTOM MADE FOR SUBARU / CQ-EF7260A
54
P.DOWN
Power down signal
O
0
55
-
No connection
-
-
56
MLD
I/F command load
O
5.0
57
MDATA
Data for I/F command
O
3.1
58
MCLK
Clock for I/F command
O
4.1
59
SPMT
Spindle mute
O
5.0
60
MUTE12
Focus/Tracking mute
O
0
61
MUTE4
Loading motor mute
O
4.8
62
LDOI
Loading motor control
I/O
2.5
63
TRV
Forced traverse control
I/O
2.4
64
-
Not used
-
-
9
CUSTOM MADE FOR SUBARU / CQ-EF7260A
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