Panasonic CQ-EA1070L / CQ-EA1071L / CQ-EA1072L / CQ-EA1073L / CQ-EA1074L Service Manual ▷ View online
8.1. Main Block
IC701 : C2CBKA000001
Pin
No.
Port
Descriptions
I/O
(V)
(V)
FM
(V)
AM
(V)
CD
(V)
TP
(v)
1
/RSTOUT
Not used
-
-
-
-
-
2
NMI
(Connecting to GND)
-
0
0
0
0
3
VSS
GND
-
0
0
0
0
4
VDD
+5V power supply
-
4.8 4.8 4.8 4.8
5
ILL1
Illumi control
O
0
0
0
0
6
ILL2
Iiiumi. control
O
2
2
1.2 1.2
7
TUNER1.ON
Radio power on/off
O
4.8 4.8 4.8 4.8
8
TUNER2.ON
Radio power on/off
O
4.8 4.8 4.8 4.8
9
LCD.ADR
LCD address
O
0
0
0
0
10
LCDRST
LCD reset
O
4.8 4.8 4.8 4.8
11
LCD.CS
LCD selection
O
0
0
0
0
12
LCD/E2.CLK
LCD/SEC. data shift
clock
clock
O
0
0
0
0
13
LCD/E2.DT.
IN
IN
LCD/SEC. serial data
O
0
0
0
0
14
E2.DT.OUT
Security data
I
0
0
0
0
15
E2.CS
Security IC selection
O
0
0
0
0
16
AUDIO.ON
Audio power on/off
O
4.8 4.8 4.8 4.8
17
VSS
GND
-
0
0
0
0
18
VDD
+5V power supply
-
4.8 4.8 4.8 4.8
19
I2C.DATA
DSP/AF.SW data
O
4.8 4.8 4.8 4.8
20
I2C.CLK
Data shift clock
O
4.8 4.8 4.8 4.8
21
F/E.DATA
Tuner control data
O
0
0
0
0
22
F/E.CLK
Data shift clock
O
0
0
0
0
23
F/E.STP
Tuner control
O
2.9 3.7 3.8 3.8
24
F/E.ENA
Tuner pack enable
O
0
0
0
0
25
VSS
GND
-
0
0
0
0
26
VDD
+5V power supply
-
4.8 4.8 4.8 4.8
27
FIELD.1
Field
strength
detection
I
0.9 0.6 0.6 0.6
28
N.C.1.1
Noise level detection
I
0
0
0
0
29
PHOTO
Photo sensor data
I
1.2 0.8 1.9 1.6
30
MP.1
FM
multipath
interference
I
2.9
0
0
0
31
DEV.1
FM deviation
I
0
2.3 2.3 2.3
32
ANT.V
ANT1 current intensity
I
0.5 0.5 0.5 0.5
33
IF.V
ANT2 current intensity
I
0
0
0
0
34
FIELD.2
Field
strength
detection
I
1.2 1.2 1.2 1.2
35
VA.REF
+5V power suooly
-
4.8 4.8 4.8 4.8
36
VA.GND
GND
-
0
0
0
0
37
NC.1.2
Noise level detection
I
0
0
0
0
38
MP.2
FM
multipath
interference
I
0
0
0
0
39
6.1V DET
+B level detection
I
4.8 4.7 4.6 4.8
40
+B MONI.
+B level detection
I
2.9 2.8 2.7 2.8
41
VSS
GND
-
0
0
0
0
42
VDD
+5V power supply
-
4.8 4.8 4.8 4.8
43
BAT.DET
+B level detection
I
4.8 4.6 4.7 4.8
44
P.SW
Power switch
I
4.8 4.3 4.5 4.7
45
T.MUTE
Tape mute
O
4.8 4.6 4.6 4.8
46
T.LOAD
Tape loading
I
0
0
0
0
47
CD.A.MUT/C
D.SW1
D.SW1
CD start/stop
O
0
0
0
0
48
STBY
Power Amp stand-by
O
4.8 4.8 4.8 4.8
49
LCD.MONI
LCD
I
4.8 4.3 4.4 4.7
50
RDS.CLK
RDS data shift clock
I
1.5 1.5 1.5 1.5
51
VSS
GND
-
0
0
0
0
52
VDD
+5V power supply
-
4.8 4.8 4.8 4.8
53
DAB.RX0
Not used
-
-
-
-
-
54
DAB.TX0
Not used
-
-
-
-
-
55
RDS2.CLK
RDS data shift clock
I
2.5 2.5 2.5 2.5
56
RDS2.DATA
RDS data
I
2.4 2.4 2.4 2.4
57
RDS.DATA
RDS data
I
1.1 1.1 1.1 1.1
58
PLL.DI
PLL data
O
0
0
0
0
59
PLL.DO
PLL data
I
2.5
0
0
0
60
PLLCLK
PLL clock
O
0
0
0
0
61
CDC.REMO
CD CH remote data
O
4.8
0
0.2
0
Pin
No.
Port
Descriptions
I/O
(V)
(V)
FM
(V)
AM
(V)
CD
(V)
TP
(v)
62
CDC.DATA
CD CH data
I
4.8 4.8 4.8 4.8
63
KLIN.OUT
K-LINE data
O
4.8
0
4.8 4.8
64
KLIN.IN
K-LINE data
I
4.8 4.8 4.8 4.8
65
PLL.CE
PLL chip enable
O
0
0
0
0
66
CDC.CLK
CD CH clock
I
4.8 4.8 4.8 4.8
67
BOSE
BOSE Amp connection
I
4.8 4.6 4.8 4.6
68
VDD
+5V power supply
-
48
4.8 4.8 4.8
69
VSS
GND
-
0
0
0
0
70
N.CNTR
NAVI. control
I
4.8 4.6 4.7 4.6
71
EXT.AMP.ON
Ext Amp power control
O
0
4.8 4.8 4.8
72
CAN.N.ERR
CAN-BUS error
I
4.8
0
4.8 4.8
73
CAN.EN
CAN-BUS driver enable
O
0
4.8
0
0
74
CAN.STB
BUS data strobe
O
0
1.9
0
0
75
CAN.RX
CAN-BUS data
I
4.8 2.2 2.2 4.8
76
CAN.TX
CAN-BUS data
O
4.8
0
2.4 4.8
77
CD.RST
CD reset
O
4.8 4.8 4.8 4.5
78
VDD
+5V power supply
-
4.8 4.8 4.8 4.8
79
VSS
GND
-
0
0
0
0
80
/RD
Not used
-
-
-
-
-
81
/WR/WRL
Not used
-
-
-
-
-
82
/READY
Not used
-
-
-
-
-
83
ALE
Not used
-
-
-
-
-
84
/EA
(+5V pull-up)
-
4.8 4.8 4.8 4.8
85
MUTE
Mute
O
4.8 4.8 4.8 4.8
86
KO.0
Key scan
O
0
0.8 0.8 0.8
87
KO.1
Key scan
O
0
0.8 0.7 0.8
88
KO.2
Key scan
O
0
0.8 0.7 0.8
89
KO.3
Key scan
O
0
0.8 0.7 0.8
90
KO.4
Key scan
O
0
0.8 0.7 0.8
91
BIT.1
Tape mode SW
I
0
0
0
4.8
92
BIT.2
Tape mode SW
I
0
0
0
4.8
93
VDD
+5V power supply
-
4.8 4.8 4.8 4.8
94
VSS
GND
-
0
0
0
0
95
BIT.3
Tape mode SW
I
0
0
0
0
96
KI.0
Key data
I
0
0
0
0
97
KO.5
Key scan
O
0.7 0.8 0.7 0.8
98
EN.B
Tape end detection
I
0
0
0
0
99
A/B.IN
Tape A/B side detection
I
0
0
0
0
100 AF.MUTE
AF mute
O
0
0
0
0
101 NC
No connection
-
-
-
-
-
102 NC
No connection
-
-
-
-
-
103 M2
Tape main motor control
O
0
0
0
4.8
104 M2F
Tape main motor control
O
0
0
0
4.8
105 T.IN
Tape detection
I
0
0
0
4.8
106 F.IN
Tape control
O
0
0
0
0
107 EN.A
Tape end detection
I
0
0
0
0
108 KI.1
Key data
I
0
0.6
0
0.7
109 KI.2
Key data
I
1
0.7
0
0.7
110 KI.3
Key data
I
1
0.7 0.7 0.7
111 VDD
+5V power supply
-
4.8 4.8 4.8 4.8
112 VSS
GND
-
0
0
0
0
113 KI.4
Key data
I
1
0.7 0.7 0.7
114 R.IN
Tape control
O
0
0
0
0
115 CD.SIMO
CD serial data
O
0
0
0
0
116 CD STP/STA
CD start/stop
O
0
0
4.8
0
117 CD.SOMI
CD serial data
I
0
4.8 4.3
0
118 CD.SCKM
CD data shift clock
O
4.8 4.8 4.8 4.8
119 CD.ON
CD power control
O
4.8 4.8 4.8 4.8
120 CC.ON
Tape power control
O
4.8
0
0
4.8
121 VDD
+5V power supply
-
4.8 4.8 4.8 4.8
122 VSS
GND
-
0
0
0
0
123 XTAL2
Crystal oscillator
-
2.2 2.2 2.2 2.2
124 XTAL1
Crystal osillator
-
2.1 2.1 2.1 2.1
125 VSS
GND
-
0
0
0
0
126 XTAL3
Crystal oscillator
-
1.2 1.2 1.2 1.2
127 XTAL4
Crystal oscillator
-
2
2
2
2
128 /RSTIN
Reset input
I
4.7 4.7 4.7 4.7
Note : Voltage measuerments are with respect to ground, with
a voltmeter (internal resistance : 10M ohms).
a voltmeter (internal resistance : 10M ohms).
8 TERMINALS DESCRIPTION
9
AUDI / CQ-EA1070L / CQ-EA1071L / CQ-EA1072L / CQ-EA1073L / CQ-EA1074L
8.2. CD Servo Block
IC201 : MN662783RPW
Pin
No.
No.
Port
Descriptions
I/O
Vol.
(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
70
CSEL
(Connecting to ground)
-
0
71
PMCK
Clock output
O
2.5
72
SMCK
Clock output
O
2.5
73
SUBC
Serial data of sub code
O
0
74
SBCK
Shift clock for SUBC
I
0.6
75
/CLDCK
Not used
-
-
76
/TEST
(Connecting to VDD)
-
5.0
Pin
No.
No.
Port
Descriptions
I/O
Vol.
(V)
77
X1
Crystal oscillator
-
0.4
78
X2
Crystal oscillator
-
3.2
79
VDD1
+5V power supply
-
5.0
80
VSS1
Ground
-
0
IC301 : MN1873260AB4
Pin
No.
No.
Port
Descriptions
I/O
Vol.
(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
Shuter SW
I
4.9
10
SW12
Horizontal origin
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
-
Not used
-
-
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
Servo status
O
0
34
CLVS
Servo status
O
5.0
35
FLOCK
Focus servo lock
O
0.2
36
TLOCK
Tracking servo lock
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
XE
Not used
-
-
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
SYNC
Not used
-
-
10
AUDI / CQ-EA1070L / CQ-EA1071L / CQ-EA1072L / CQ-EA1073L / CQ-EA1074L
PA101 : J3CCAB000001
PA102 : YEAU03SMX01
IC101, 103 : AN6564NST1
IC102, 104, 204 : C0ABCB000005
IC105 : YEAMLC72146T
IC205, 382 : YEAMPC4570T1
ICIC281 : C1BA00000311
IC705 : YEAMS2922ADF
9 PACKAGE AND IC BLOCK DIAGRAM
9.1. Main Block
11
AUDI / CQ-EA1070L / CQ-EA1071L / CQ-EA1072L / CQ-EA1073L / CQ-EA1074L
IC704 : MN1382QTX
IC715 : MN1382JP
IC706 : YEAM2951MT
IC707 : C1EB00000039
IC710 : YEAMLB1930MT
IC713 : C0EBM0000005
IC881 : C1EB00000042
9.2. CD Servo Block
IC601 : YEAMBA5971FP
12
AUDI / CQ-EA1070L / CQ-EA1071L / CQ-EA1072L / CQ-EA1073L / CQ-EA1074L
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