Panasonic CQ-EN7160Z / CQ-EN7161Z (serv.man2) Service Manual ▷ View online
6 BLOCK DIAGRAM (Main / Display / Connector Block)
5
NISSAN / CQ-EN7160Z / CQ-EN7161Z
7 BLOCK DIAGRAM (CD Servo Block)
6
NISSAN / CQ-EN7160Z / CQ-EN7161Z
8.1. Main Block
IC601 : C2CBBGF000117
Pin
No.
Name
Description
I/O
Vol.(V)
FM
AM
CD
1
BAT-DET Battery level detection
I
5.3
5
5
2
ACC-DET ACC level detection
I
5.3
5
5.1
3
ANT ON
ANT on
O
5.4
5.1
0
4
AMP ON
AMP on
O
5.4
5
5
5
IDC
CONT
CONT
IDC control
O
0
0
0
6
CD ON
LCD illumi. on/off
O
5.4
5.1
5.1
7
CD
RESET
RESET
CD reset
O
5.4
5.1
5.1
8
CD SON
CD control
I
5.1
4.7
4.7
9
CD SIN
CD control
O
5.3
5
5
10 CD SCKM CD clock
I
5.4
5.1
5.1
11 RDS
DATA
RDS data
I
2.5
3.3
3.3
12 NC
No connection
-
-
-
-
13 RDS CLK RDS clock
I
2.8
2.5
2.5
14 RADIO
MUTE
Radio mute
O
0
0
5
15 IDC
MUTE
IDC mute
O
0
0
0
16 FM CONT FM control
O
5.4
0
0
17 AM/FM
CONT
AM/FM control
O
5.4
5
0
18 VOL CLK Electronic volume clock
O
0
0
0
19 VOL
DATA
Electronic volume data
O
0
0
0
20 MUTE
Not used
-
0
0
0
21 STBY
Power amp. Stndby
O
5.4
5.1
5.1
22 DX/LOC
DX/Local
O
0
0
0
23 ILL CONT Illumination control
I
0
0
0
24 VCONT
Security ROM chip select
I
0.6
0.7
0
25 ST-REM
Stering Wheel control
I
5.4
5.1
5.1
26 NC
No connection
-
0
0
0
27 AVDD
+5V power supply
-
5.5
5.1
5.1
28 NC
No connection
-
0
0
0
29 NC
No connection
-
0
0
0
30 SD
Signal detect
I
0.4
0
0
31 FM ST
FM stereo signal
I
0
1.8
0
32 AVSS
ACC 5V power switch
O
0
0
0
33 REGCPU Not used
-
3.4
3.4
3.4
34 VDD
+5V power supply
-
5.1
5.1
5.1
35 REGOSC REG OSC capacitor
-
5.1
5.1
5.1
36 X2
Crystal oscillator terminal
-
2.2
2.2
2.2
37 X1
Crystal oscillator terminal
-
2.2
2.2
2.2
38 GND
Ground
-
0
0
0
39 SSC
SSC
O
0
0
0
40 GND
Ground
-
0
0
0
41 AM IF
AM IF
I
0
0
0
42 FN IF
FM IF
I
0
0
0
43 PLL VDD
PLL VDD
-
5.1
5.1
5.1
44 FM OSC
FM OSC
I
2.6
0
0
45 AM OSC
AM OSC
I
0
1.8
1.9
46 PLL GND Ground
-
0
0
0
47 EO0
EO0
O
1.4
1.3
0
48 NC(E01)
No connection
-
-
-
-
49 GND(IC)
Ground
I
0
0
0
50 RESET
Reset input
I
5
5
5
51 GRIT IN
Grit in
I
3.8
3.8
3.8
52 NC
No connection
-
0
0
0
53 NC
No connection
-
0
0
0
Pin
No.
Name
Description
I/O
Vol.(V)
FM
AM
CD
54 FLT
BLK
PWM
FLT PWM
O
5
5
5
55 NC
No connection
-
0
0
0
56 TEST
POINT
GA-IN
I
5
5
5
57 NC
No connection
-
0
0
0
58 NC
No connection
-
0
0
0
59 BEEP
Beep output
O
0
0
0
60 NC
No connection
-
0
0
0
61 PWN
PWM
O
0
0
0
62 AUTO P
Auto Preset
O
5
5
5
63 FLT
RESET
FLT reset
O
5
5
5
64 KS0
Key scan 0
O
0
0
0
65 KS1
Key scan 1
O
0
0
0
66 KS2
Key scan 2
O
0
0
0
67 KS3
Key scan 3
O
0
0
0
68 KS4
Key scan 4
O
0
0
0
69 NC(RX)
No connection
-
0
0
0
70 NC(TX)
No connection
-
0
0
0
71 EN A
Encoder A
I
0
0
0
72 EN B
Encoder B
I
5.1
5
5
73 KI1
Key return 1
I
5.1
5.1
5.1
74 KI2
Key return 2
I
5.1
5.1
5.1
75 KI3
Key return 3
I
5.1
5.1
5.1
76 KI4
Key return 4
I
5.1
5.1
5.1
77 KI5
Key return 5
I
5
5.1
5.1
78 NC
No connection
-
0
0
0
79 CD EJ
CD disc eject SW
I
5.1
5.1
5.1
80 POW SW Power switch
I
5.1
5.1
5.1
81 ILL DET
Illumination detect
I
5
5
5
82 GND
Ground
-
0
0
0
83 LED LCK
LED LCK
O
0
0
0
84 LED CLK
LED clock
O
0
0
0
85 LED
DOUT
LED data out
O
0
0
0
86 FLT CS
FLT chip select
O
4.6
4.8
4.8
87 FLT CP
FLT clock
O
4.9
5
5
88 FLT DA
FLT data
O
0
0
0
89 DC-
DC_250H
z
z
DC-DC control
O
5.1
5.1
5.1
90 P
CONT(AC
C)
C)
Power control
O
5.1
5.1
5.1
91 FLT
CONT
FLT control
O
5
5
5
92 ACC ON
ACC on
O
5
5
5
93 NC
Not used
-
0
0
0
94 NC
Not used
-
0
0
0
95 SIYOU
Spec 0
I
5.1
5.1
5.1
96 SIYOU1
Spec 1
I
5.1
5.1
5.1
97 SIYOU2
Spec 2
I
5.1
5.1
5.1
98 TEL
ON(EXT)
Spec 3
I
0
0
0
99 VDD
+5V power supply
-
5.1
5.1
5.1
100 GND
Ground
-
0
0
0
Note :
Voltage measuerments are with respect to ground, with a
voltmeter (Internal resistance : 10M ohms.)
voltmeter (Internal resistance : 10M ohms.)
8 TERMINALS DESCRIPTION
7
NISSAN / CQ-EN7160Z / CQ-EN7161Z
8.2. Display Block
IC902 : C0HBB0000010
Pin
No.
Port
Description
I/O
1
AD3
AD3
O
2
AD4(NC)
Not used
-
3-37 S1-35
LCD segment data
O
38
VDISP1
’+5V Power Supply
-
39-56 COM1-18
LCD common
I
57-62 COM19-24
Not used
-
63
VFL1
FLT voltage
-
64
GND
ground
-
65
OSC0
Oscillator
-
66
OSC1
Oscillator
-
67
RESET
Reset
I
68
CS
Chip select
I
68
CP
Clock
I
70
DA
LCD data
I
71
VDD
Ground
-
72-75 P1-4
Not used
-
76
VFL2
FLT voltage
-
77
NC
Not used
-
78
VDISP2
’+5V Power Supply
-
79,
80
AD1, 2
FLT AD
O
8.3. CD Servo Block
IC201 : MN662783RPW
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
A0
D-RAM address
O
1.0
17
A1
D-RAM address
O
1.0
18
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
Reference 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
Biase for DSL
I
2.4
42
DSLF
Loop filter for DSL
I/O
2.5
43
SDLF2
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
Data 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
PM clock
O
2.5
72
SMCK
SM clock
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
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.
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
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
Reference voltage
I
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
8
NISSAN / CQ-EN7160Z / CQ-EN7161Z
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