Terminals Description - Panasonic CQ-JA1920L Service Manual

Am/fm mpx electronic tuning radio with stereo cassette tapeplayer and cd player
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AUDI / CQ-JA1920L / CQ-JA1924L

9 TERMINALS DESCRIPTION

9.1.
Main Block
IC621 : C2CBKJ000009
Pin
Port
No.
1
MD1
2
MD2
3
NC
4
NC
5
CD RESET
6
CD ON
7
TIM-SP
8
TIM-ST
9
VSS
10
TIM-REC/PLAY
11
VCC
12
PLL CE
13
PLL CLK
14
PLL DI
15
VSS
16
PLL DO
17
PVCC1
18
NC
19
DSP-SI
20
DSP-CLK
21
DSP-RST
22
DSP-WRQ
23
DSP-WRDY
24
DSP-CS
25
6.5V-DET
26
FLASH-TXD2
27
FLASH-RXD2
28
AF-MUTE
29
VSS
30
MUTE1
31
MUTE2
32
F.IN
33
R.IN
34
CAN-IRQ
35
NC
36
NC
37
R.CONT
38
ILL1
39
IF CONT
40
CLK
41
DATA
42
ENA-IN
43
ENA-OUT
44
E2-CLK
45
E2-DI
46
E2-DO
47
E2-CE
48
VSS
49
AMP+
50
PVCC1
51
CLK
52
DATA
53
LATCH
54
STBY
55
COM-CNT
56
MSOUT
57
T.LOAD
58
A/B
59
T.IN
Description
(Connecting to VDD)
MPU mode setting
No connector
No connector
CD reset
CD controller enable
TIM
TIM strobe
Ground
TIM recode/play
+3V power supply
PLL chip enable
PLL clock
PLL data
Ground
PLL data
+5V power supply
No connector
DSP serial data
DSP Clock for serial data
DSP reset
DSP data write request
DSP write ready
DSC chip select
6.5V detection
Not used
Not used
Audio mute control
Ground
Mute control
Mute control
Tape loading motor control
Tape loading motor control
CAN BUS request
No connector
No connector
Radio power control
Illumination signal
IF counter
Clock for the second display
Data for the second display
Enable for the second display
Enable for the second display
Clock for security EEPROM
data
Security EEPROM data
Security EEPROM data
Security EEPROM enable
Ground
Ext. Amp. control
+5V power supply
Clock for power control IC
Data for power control IC
Data latch
Power control IC standby
+10V power switch
Tape MS detection
Tape loading
Tape side detection
Tape insert detection
60
PVCC2
61
+B DET
62
VSS
63
CD REMO
I/O
(V)
64
CD DATA
65
CD CLK
-
5.2
66
CAN-TDO
I
4.4
67
VSS
-
-
68
VSS
-
-
69
CAN-RDI
O
5.1
70
S.CONT
O
5.1
71
P-ON SW
O
0
72
P-SI
O
0
73
P-SO
-
0
74
P-CLK
O
0
75
NC
-
3.0
76
PLL VCC
O
0
77
PLL CAP
O
0
78
PLL VSS
O
0
79
RES
-
0
80
MNI
I
4.9
81
STBY
-
5.2
82
FWE
-
-
83
XTAL
O
0
84
VCC
O
5.2
85
XTAL
O
0
86
VSS
O
0
87
OSC1
I
0
88
OSC2
O
5.1
89
PVCC1
I
5.2
90
ILL2
-
-
91
VSS
-
-
92
PANEL RESET
O
5.1
93
CAN RESET
-
0
94
GALA
O
5.1
95
CONT
O
5.1
96
S.REMOCON
O
0
97
ANT CNT2
O
0
98
R CLK
I
5.2
99
NC
-
-
100 NC
-
-
101 AVCC
-
5.1
102 VREF
I
2.5
103 VCONT
O
5.1
104 MP
O
0
105 NOISE
O
0
106 DSP-MON
I
0
107 IGN
O
5.1
108 T.MUTE
O
0
109 N. CONT
110 R DATA
O
0
111 CD-EJECT
I
0
112 E-A
O
0
113 E-B
-
0
114 EQ
O
5.1
115 Bit 3
-
5.2
116 Bit 2
O
0
117 Bit 1
O
0
118 TA.MON
O
5.1
119 AVSS
O
5.1
120 TIM-CA0
O
5.1
121 TIM-CA1
I
3.9
122 TIM-CA2
I
4.7
123 TIM-CA3
I
0
124 TIM-DEL
I
4.7
125 CD SCKM
8
+5V power supply
Battery level detection
Ground
CD CH remocon data
CD CH data
CD CH clock
CAN BUS data
Ground
Ground
CAN BUS data
Key status signal
Power on SW
Serial data for panel
Serial data for panel
Clock for panel
No connector
PLL power supply
Filter for PLL Vcc
Ground
Reset
(Connecting to VCC)
Power control IC standby
(Ground pull-down)
Crystal oscillator
+3V power supply
Crystal oscillator
Ground
(Connecting to Vcc)
Not used
+5V power supply
Illumination signal
Ground
Reset output
CAN BUS reset
GALA input
Control signal detection
Remocon data
Motor antenna control
Clock for RDS data
No connector
No connector
+5V power supply
Reference voltage terminal
AM/FM level detection
Multi-path detection
FM noise level detection
(+5V pull-up)
IGN signal input
Telephone mute
Navi control
RDS data
CD eject SW
Tape end detection
Tape end detection
Metal tape detection
Tape mode SW
Tape mode SW
Tape mode SW
TA monitor
Ground
TIM phrase setting
TIM phrase setting
TIM phrase setting
TIM phrase setting
TIM delete
CD serial clock
-
5.2
I
4.8
-
0
O
5.1
I
0
I
0
I
0
-
0
-
0
O
4.8
I
5.2
I
4.7
O
5.1
I
0
O
5.1
-
-
I
3.0
-
1.5
-
0
I
4.7
-
5.2
O
5.2
-
0
-
2.1
-
3.0
-
1.7
-
0
-
3.0
-
-
-
5.2
I
0
-
0
O
5.2
O
4.8
I
0
I
4.7
I
5.1
O
5.0
I
2.5
-
-
-
-
-
5.2
-
5.2
I
0
I
0
I
1.7
I
4.4
I
5.2
I
4.7
I
4.7
I
2.5
I
4.7
I
0
I
0
I
0
I
0
I
0
I
0
I
0
-
0
O
0
O
0
O
0
O
0
O
5.1
I
0

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