Read Panasonic CQ-JS0483K Service Manual online
6.1. Main Block
IC601 : C2CBKH000100
Pin
No.
Port
Description
I/O
Volts (V)
FM AM CD TA
PE
1
BEEP
Beep output
O
0
0
0
0
2
BIT3
NCA1 rotary switch 3
I
4.9 4.9 4.8
0
3
BIT2
NCA1 rotary switch 2
I
4.9 4.9 4.8 4.9
4
BIT1
NCA1 rotary switch 1
I
0
0
0 4.9
5
FAN ON
(NC)
(NC)
Not used
-
-
-
-
-
6
CD-ON
H: CD (IDC) deck
microcomputer
communication is possible
L: CD (IDC) deck micro
computer communication is
not possible
microcomputer
communication is possible
L: CD (IDC) deck micro
computer communication is
not possible
O
0
0
4.8
0
7
CD-
RESET
RESET
H: Normal L: Reset
O
4.9 4.9 4.9 4.9
8
CD-
SCKM
SCKM
CD (IDC) deck serial
communication clock output
communication clock output
O
0
0
4.8
0
9
CD-SOM CD (IDC) deck serial
communication input
I
4.9 4.9
2 4.9
10 CD-SIM
CD (IDC) deck serial
communication output
terminal
communication output
terminal
O
4.9 4.9 3.7
0
11 RESET
H: Normal L: Reset
I
4.9 4.9 4.9 4.9
12 XT2 (NC) Not Used
-
-
-
-
-
13 XT1
Connecting to GND
I
0
0
0
0
14 GND
Ground Terminal
-
0
0
0
0
15 X2
Oscillation Terminal
(Main)12.396875MHz
(Main)12.396875MHz
O
1.6 1.6 1.6 1.6
16 X1
Oscillation Terminal
(Main)12.396875MHz
(Main)12.396875MHz
I
1.5 1.5 1.5 1.5
17 REGOFF Connecting to GND
-
0
0
0
0
18 REGCPU Regulator output stable
capacity connection.
-
3.6 3.6 3.6 3.6
19 VDD0
Positive power supply
-
4.9 4.9 4.9 4.9
20 NC
Not used
O
-
-
-
-
21 NC
Not used
O
-
-
-
-
22 NC
Not used
O
-
-
-
-
23 SHIYOU4 H: Left handle L: Right handle
I
0
0
0
0
24 ADIM
H: Tail cancel off notice
L: Tail cancel on notice
L: Tail cancel on notice
I
4.8 4.8 4.8 4.8
25 NC
Not used
O
-
-
-
-
26 DSP-
CNT
H: When receiving FM 76.0-
78.9MHz
L: Other than the above
78.9MHz
L: Other than the above
O
4.9
0
0
0
27 DSP-
BUSY
H: Data in the DSP receiving
buffer
L: No data in the DSP
receiving buffer
buffer
L: No data in the DSP
receiving buffer
I
0.5 0.5 0.5 0.5
28 DSP-
RSTB
DSP reset output
O
4.9 4.9 4.9 4.9
29 DSP-CE
Enabled chip output for
combined power IC, DSP
combined power IC, DSP
O
0
0
0
0
30 DSP-CL
Clock output for combined
power IC, DSP
power IC, DSP
O
4.9 4.9 4.9 4.9
31 DSP-DO Not used (However it is
connected to DSP IC and
thus considered as an input)
thus considered as an input)
I
0.6 0.5 0.6 0.5
32 DSP-DI
Data output for combined
power IC, DSP
power IC, DSP
O
0
0
0
0
33 PW/STB
Y
STBY output for power IC
O
4.9 4.9 4.9 4.9
34 LCD-SCK LCD data clock output
O
0
0
0
0
35 LCD-
DATA
LCD data input/output
I/O 4.9 4.9 4.9 4.8
36 LCD-STB LCD data STB output
O
0
0
0
0
Pin
No.
Port
Description
I/O
Volts (V)
FM AM CD TA
PE
37 LCD-
KEYREQ
H: Key input data
L: No key data
L: No key data
I
0
0
0
0
38 LCD-OFF H: Normal L: Displays off
O
4.9 4.9 4.9 4.9
39 LCD-
RESET
H: Normal L: Reset
O
4.9 4.9 4.9 4.9
40 GND
Ground Terminal
-
0
0
0
0
41 VDD
Positive power supply
-
4.9 4.9 4.9 4.9
42 CD-EJ
H: CD eject off L: CD eject on
I
4.9 4.9 4.9 4.9
43 CST-EJ
H: CST-EJ off L: CST-EJ on
I
4.9 4.9 4.9 4.9
44 MODE-A Mode encoder input A
I
4.9 4.9 4.9 4.9
45 MODE-B Mode encoder input B
I
4.9 4.9 4.9 4.9
46 VOL-A
Volume encoder input A
I
4.9 4.9 4.9 4.9
47 VOL-B
Volume encoder input B
I
0.5 0.5 0.5 0.5
48 SHIYOU1 H: IDC L: CDP
I
0
0
0
0
49 SHIYOU2 Ground pull down
I
0
0
0
0
50 SHIYOU3 Ground pull down
I
0
0
0
0
51 AMNC-
ON/OFF
H: AMNC off L: AMNC on
O
4.9
0
4.9 4.9
52 MUTE
H: Mute on L: Mute off
O
0
0
0
0
53 SD
H: No electric field
L: With electic field
L: With electic field
I
4.9 4.9 3.3 3.3
54 PLL-SCL PLL data communication
clock output
O
4.9 4.9 4.9 4.9
55 PLL-SDA PLL data communication
output
I/O 4.9 4.9 4.9 4.9
56 ST
H: No stereo input
L: With stereo input
L: With stereo input
I
4.9 4.9 3.1 3.1
57 MSOUT
H: No sounds L: With sounds
I
4.8 4.8 4.8
0
58 NC
Not used
-
-
-
-
-
59 R-IN2
(F-IN1) : L (R-IN2) : -> eject
(F-IN1) : H (R-IN2) : -> brake
O
0
0
0
0
60 F-IN1
(F-IN1) : L (R-IN2) : -> brake
(F-IN1) : H (R-IN2) : -> loads
(F-IN1) : H (R-IN2) : -> loads
O
0
0
0
0
61 MSPL/FF H: FF/REW L: Play
O
0
0
0
0
62 DOLBY
H: Dolby off L: Dolby on
O
0
0
0 4.9
63 EQ
H: Metal tape L: Normal tape
I
4.9 4.9 4.8
0
64 NC
Not used
-
-
-
-
-
65 NC
Not used
-
-
-
-
-
66 NC
Not used
-
-
-
-
-
67 NC
Not used
-
-
-
-
-
68 WP
(SW3)
H: In E2PROM write protect
(input)
L: E2PROM is writing (output)
(input)
L: E2PROM is writing (output)
I/O 4.9 4.9 4.9 4.9
69 T-LOAD
H: Cassette holder emitance
L: Normal operation and
cassette holder pushes in
L: Normal operation and
cassette holder pushes in
I
4.9 4.9 4.9
0
70 F/R
H: Sounds from side B
L: Sounds from side A
L: Sounds from side A
O
0
0
0 4.9
71 NC
Not used
-
-
-
-
-
72 NC
Not used
-
-
-
-
-
73 TEST
(VPP)
Connecting to ground
-
0
0
0
0
74 NC(MP)
Not used
O
-
-
-
-
75 Vcont
Analog input of electric field
strength
strength
I
0.5 0.8
0
0
76 AMNC-IN AM noise cancel decision
analog input using the A/D
input
input
I
0
1
0
0
77 NOISE
Adjacent obstruction noise
input
input
O
0.7
0
0
0
78 ST-SW1
Key input for steering
switch(1)
switch(1)
I
4.9 4.9 4.8 4.9
79 ST-SW2
Key input for steering
switch(2)
switch(2)
I
4.9 4.9 4.9 4.9
80 MTL
H: Normal tape L: Metal tape
O
0
0
0 4.9
81 MSM
H: 1 Speed L: 3 Speeds
O
0
0
0 4.9
6 TERMINALS DESCRIPTION
6
CQ-JS0483K
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