Panasonic CR-LT1010X Service Manual ▷ View online
General
Power Supply
DC 12V (11V - 16V),
Test Voltage 13.2V
Negative Ground
Current Consumption
Less than 2.0A
Power Output
17W×4ch
AM Radio
Frequency Range
530 - 1,710kHz
Usable Sensitivity
25dB(µV) (S/N 20dB)
CR-LT1010X
AM/FM MPX Electronic Tuning Radio
PART No. : 86120-AD010
ID CODE : A51409
VEHICLE : TACOMA
DESTINATION : North America
PRODUCED AFTER : Aug., 2000
FM Stereo Radio
Frequency Range
87.7 - 107.9MHz
Usable Sensitivity
6dB/µV (S/N 30dB)
Dimensions**
178×70×165mm
Weight**
0.9kg
* Specifications and the design are subject to possible modification
without notice due to improvements.
without notice due to improvements.
** Dimensions and Weight shown are approximate.
AUTOMOTIVE ELECTRONICS
Specification*
I0
1
FEATUERS
2
2
REAR VIEW AND CONNECTORS
2
3
FRONT VIEW AND FUNCTIONS
2
4
BLOCK DIAGRAM
3
5
TERMINALS DESCRIPTION
4
6
PACKAGE AND IC BLOCK DIAGRAM
5
∙
PLL (Phase Locked Loop) synthesized tuning.
∙
18-station preset (6-AM, 12-FM).
∙
Scan tuning function.
7
REPLACEMENT PARTS LIST
7
8
EXPLODED VIEW (Unit)
11
9
WIRING DIAGRAM
12
10 SCHEMATIC DIAGRAM
15
11 MEMO
17
∙
Cassette tape player control.
∙
CD changer control.
∙
Electronic volume control.
CONTENTS
Page
Page
1 FEATUERS
2 REAR VIEW AND CONNECTORS
3 FRONT VIEW AND FUNCTIONS
2
CR-LT1010X
4 BLOCK DIAGRAM
3
CR-LT1010X
5.1. Main Block
IC601 : C2BBGF000087
Pin
No.
No.
Port
Descriptions
I/O
Vol.
(V)
1
ILL-DEWT
Illimi. power detection
I
0
2-6
-
Not used
-
-
7
STBY
Voltage generator stand-by
O
5.0
8
LATCH
Voltage generator data latch
O
5.0
9
DATA
Voltage generator data
O
0
10
CLK
Voltage generator clock
O
0
11
NC
No connection
-
-
12
LCD-DO
LCD data
I
4.9
13
LCD-CELCD
driver chip enable
O
0
14
LCD-CLK
LCD clock
O
0
15
LCD-DI
LCD data
O
0
16
SIYOU
(Ground pull-up)
-
4.9
17,18 NC
No connection
-
-
19
VOL B
Rotary encoder for volume
I
4.9
20
VOL A
Rotary encoder for volume
I
4.9
21
MODE B
Rotary encoder for mode SW
I
0
22
MODE A
Rotary encoder for mode SW
I
0
23
V CONT
AAM/FM level detection
I
0.3
24
ACC-DET
ACC level detection
I
1.9
25
-
Battery level detection
I
1.7
26
REO-IN
Illumi.(-) detection
I
0
27
VDD
+5V power supply
-
5.0
28-31 (GND)
(Connecting to ground)
-
0
32
AVSS
Ground
-
0
33
REGCPU
Voltage regurator terminal
-
3.4
34
VDD0
+5 power supply
-
5.0
35
REGOSC
(Connecting to ground)
-
0
36
X2
Crystal oscillator
-
2.2
37
X1
Crystal oscillator
-
1.6
38
GND0
Ground
-
0
39
NC
No connection
-
0
40
GND2
Ground
-
0
41
AM IF
AM IF input
I
1.8
42
FM IF
FM IF input
I
2.0
43
VDDPLL
+5V power supply
-
4.9
44
FMOSC
FM local oscillator
I
2.2
45
AMOSC
AM local oscillator
I
1.3
46
GNDPLL
Ground
-
0
47
EO0
PLL phase-comp. error
O
1.6
48
NC
No connection
-
-
49
IC
(Connecting to ground)
-
-
50
RESET
Reset input
I
4.3
51
CD EJ
(Connecting to ground)
-
0
52
TAPE EJ
Not used
-
-
53
RESMON
Reset output (Vdd=4.5V)
O
5.0
54
NC
No connection
-
-
55
SD
B/S detection
I
0.2
56
SSC
Search stop clear
O
0
57
DX/LOC
Not used
-
-
58
ST
FM stereo detection
I
0.3
59
BEEP
Bep output
O
0
60
PWR
(Connecting to ground)
-
0
61
PWM ILL
ILL power control
O
7.3
62
PWM LCD
LCD power control
O
7.3
63,64 -
Not used
-
-
65
TEST
Test terminal
O
0
66-68 NC
No connection
-
-
69
RIN
Not used
-
-
70
FIN
Not used
-
-
71,72 -
Not used
-
-
73
D.IN
LAN data
O
0
74
D.OUT
LAN data
I
0
75
VOL CLK
Clock for electronic volume
O
0
76
VOL DATA
Clock for electronic volume
O
0
77
MUTE
Mute for electronicvolume
O
0
78
INTERS
Reset input (Vdd=4.5V)
I
5.0
79
BIT1
(VDD pull-up)
-
4.9
Pin
No.
No.
Port
Descriptions
I/O
Vol.
(V)
80
BIT2
(VDD pull-up)
-
4.9
81
BIT3
(VDD pull-up)
-
4.9
82
GND1
Ground
-
0
83
EQ
(Ground pull-down)
-
0
84
MSM
Not used
-
-
85
NC
No connection
-
-
86
END-A
(Ground pull-down)
-
0
87
END-B
(Ground pull-down)
-
0
88,89 NC
No connection
-
-
90
T.IN
Not used
-
-
91
CAM A/B
(Ground pull-down)
-
0
92
DOLBY
Not used
-
-
93
T.LOAD
(VDD pull-up)
-
4.9
94
MS-PL/FF
Not used
-
-
95
MSOUT
Not used
-
-
96
MTL
(Ground pull-down)
-
0
97
A/B
Not used
-
-
98
NC
No connection
-
-
99
VDD PORT
+5V power supply
-
5.0
100
GND PORT
Ground
-
0
Note :
Voltage measuerments are with respect to ground, with a
voltmeter (Internal resistance : 10M ohms.)
voltmeter (Internal resistance : 10M ohms.)
5.2. Display Block
IC901 : C0HBA0000016
Pin
No.
No.
Port
Descriptions
I/O
Vol.
(V)
1-33
SEG1-33
LCD segment data
O
2.5
34-40 SEG34-40
Not used
-
-
41-43 COM1-3
LCD common
O
2.5
44
KS1/S41
Not used
-
-
45-49
KS2-9
Key scan
O
0.9
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
5 TERMINALS DESCRIPTION
4
CR-LT1010X