Read Panasonic CQ-EH8480K Service Manual online
6.1. Main Block
IC601 : C2CBJG000535
Pin
No.
Port
Descriptions
I/O
FM
(V)
AM
(V)
CD
(V)
1
+B-DET
BAT detection Input
H: +B ON L:+B OFF
H: +B ON L:+B OFF
I
5.1
5.1
5.2
2
TEL-DET Telephone mute detection
H: Interfering L: IDLE
I
-
-
-
3
VDD-
DET
DET
VDD operation voltage (4.5V)
detection input
H: VDD ON L: VDD OFF
detection input
H: VDD ON L: VDD OFF
I
5.1
5.2
5.2
4
AUX-
DET
DET
AUX terminal connection
detection
H: Unconnected L: Connecting
detection
H: Unconnected L: Connecting
I
5.1
5.1
5.2
5
VOL.A
Main volume signal
I
0
5.2
5.3
6
VOL.B
Main volume signal
I
5.2
5.2
5.2
7
AM-
LOUD
LOUD
Changes the loudness control
settings while in AM mode
settings while in AM mode
I
0
0
0
8
AUX-
MUTE
MUTE
AUX audio line mute control
O
0
0
0
9
KEY-
REQ
REQ
Key data request
I
0
0
0
10 POWER-
SW
Power switch input
H: Open button
L: Button pressed.
H: Open button
L: Button pressed.
I
5.2
5.2
5.2
11 RESET
Reset input
-
5.2
5.2
5.3
12 XT2
Crystal oscillator terminal
-
1.9
2.0
2.0
13 XT1
Crystal oscillator terminal
-
1.5
1.5
1.5
14 GND
Ground
-
0
0
0
15 X2
Crystal oscillator terminal
-
1.9
1.9
1.9
16 X1
Crystal oscillator terminal
-
1.6
1.6
1.6
17 REGOFF Connecting to ground
-
0
0
0
18 REGC
Bypass capacitor terminal
-
3.7
3.7
3.7
19 VDD
+5V power supply
-
5.2
5.2
5.2
20 LCD1-
CE
LCD1 chip enable
O
0
0
0
21 LCD1-
DATA
LCD1 data
I/O
5.2
5.2
5.2
22 LCD1-
CLK
LCD1 data shift clock
O
0
0
0
23 LCD1-
RST
LCD1 reset
H: Normal L: Reset
H: Normal L: Reset
O
5.2
5.2
5.2
24 LCD-
OFF
LCD1 off signal
H: LCD display L: LCD off
H: LCD display L: LCD off
O
5.2
5.2
5.2
25 LCD2-
DO
LCD2 data
O
5.2
5.2
5.2
26 LCD2-
CLK
LCD2 data shift clock
O
0
0
0
27 LCD2-
CE
LCD2 chip enable
O
0
0
0
28 LCD2-DI LCD2 data
I
5.2
5.2
5.2
29 SEC-
LED
Security led on/off
H: Led on L: Led off
H: Led on L: Led off
O
0
0
0
30 ADLC-B
E-VOL Gain settings
O
-
-
-
31 ADLC-A
E-VOL Gain settings
O
-
-
-
32 EEP-DI
Security ROM data
I
1.0
1.4
1.2
33 EEP-
CLK
Security ROM data shift clock
O
0
0
0
34 EEP-DO Security ROM data
O
0
0
0
35 EEP-CS Security ROM chip select
O
0
0
0
36 SIYOU7
Specification setting
I
0
0
0
37 SIYOU6
Specification setting
I
0
0
0
38 SIYOU5
Specification setting
I
0
0
0
39 SIYOU4
Specification setting
I
0
0
0
40 GND
Ground
-
0
0
0
41 VDD
+5 power supply
-
5.2
5.2
5.2
Pin
No.
Port
Descriptions
I/O
FM
(V)
AM
(V)
CD
(V)
42 SPA-SEL Spectrum analyzer IC chip
select
H: Spectrum analysis
L: Spectrum analysis (low)
H: Spectrum analysis
L: Spectrum analysis (low)
O
5.2
0
5.3
43 SPA-A
Spectrum analyzer output
select
select
O
5.2
0
2.7
44 SPA-B
Spectrum analyzer output
select
select
O
0
0
2.7
45 SPA-C
Spectrum analyzer output
select
select
O
5.2
0
2.7
46 AMP-
STB
Power amp. Stand-by H: Amp
on L: Amp off
on L: Amp off
O
5.2
5.2
5.2
47 AMP-
MUTE
Power amp mute
H: Mute on L: Mute off
H: Mute on L: Mute off
O
0
0
0
48 MUTE
Mute control
H: Power on L: Power off
H: Power on L: Power off
O
0
0
0
49 MUTE-
FL
Front left mute
H: Mute off L: Mute on
H: Mute off L: Mute on
O
5.2
5.2
5.2
50 MUTE-
FR
Front right mute
H: Mute off L: Mute on
H: Mute off L: Mute on
O
5.2
5.2
5.2
51 MUTE-
REAR
Rear mute
H: Mute off L: Mute on
H: Mute off L: Mute on
O
5.2
5.2
5.2
52 (NAVI-
MUTE-L)
Left CH navi audio
interference switch
H: Normal audio
L: Navi audio output
interference switch
H: Normal audio
L: Navi audio output
O
-
-
-
53 (NAVI-
MUTE-R)
Right CH navi audio
interference switch
H: Normal audio
L: Navi audio output
interference switch
H: Normal audio
L: Navi audio output
O
-
-
-
54 EVOL-
DATA
Electronic volume cont. data
O
0
0
0
55 EVOL-
CLK
Electronic volume cont. clock
O
0
0
0
56 EVOL-
STB
Electronic volume cont. strobe
H: sending data L: other
H: sending data L: other
O
0
0
0
57 ST-IND
FM stereo detection
H: stereo L: monaural
H: stereo L: monaural
I
0.5
2.0
0
58 PLL-DI
PLL data
I
5.2
5.2
5.2
59 PLL-CLK PLL data shift clock
O
0
0
0
60 PLL-DO
PLL data
O
0
0
0
61 PLL-CE
PLL chip enable
O
0
0
0
62 NC
No connection
-
-
-
-
63 IDCH-
RST
IDCH reset H: normal L: reset
O
5.0
5.1
5.1
64 IDCH-
STOP
IDCH controller enable
H: Cancels the stop mode
L: Stops
H: Cancels the stop mode
L: Stops
O
5.1
5.1
5.1
65 IDCH-
CLK
IDCH data shift clock
O
5.1
5.1
5.1
66 IDCH-SI IDCH data
I
0
0
2.4
67 IDCH-SO IDCH data
O
5.1
5.1
3.7
68 ACC-
CONT
ACC power control
H: power on L: power off
H: power on L: power off
O
5.1
5.1
5.2
69 P-CONT System power control
H: power on L: power off
O
5.1
5.1
5.2
70 SW+B
SW +B line control
H: power on L: power off
H: power on L: power off
O
5.1
5.1
5.1
71 LCD-
PWM
LCD dimmer control
O
5.1
5.1
5.1
72 NC
(PWM1)
No connection
-
-
-
-
73 GND
(TEST)
Ground pull down
-
0
0
0
74 REMOT
E-SW
Handle remote controller
analog input
analog input
I
5.2
5.2
5.2
75 VSM
Phase diff. level detection
I
1.6
1.7
1.0
76 SPA-IN
Spectrum analyzer data
I
0.5
0
0.5
77 MIC-IN
Not used
I
-
-
-
6 TERMINALS DESCRIPTION
7
HONDA / CQ-EH8480K
Click on the first or last page to see other CQ-EH8480K service manuals if exist.