Read Panasonic CQ-EF7360A (serv.man3) Service Manual online
8.1. Main Block
IC601 : C2BBGF000301
Pin
No.
No.
Port
Descriptions
I/O
FM
(V)
AM
(V)
CD
(V)
1
BATT-DET
Batterylevel detection
I
5.2 5.4 5.4
2
ACC-DET
ACC level detection
I
5.7 5.9 5.9
3
KEY.DATA
Key data
I
0.6 0.7 0.8
4
DISP.DATA
Display data
O
1.6 1.7 1.7
5
VFD.CLK
VFD data shift clock
I
5.2 5.4 5.4
6
CD-ON
CD controll enable
O
5.1 5.3 5.3
7
CD-RESET
CD reset
O
5.2 5.3 5.4
8
CD-SOM
CD serial data
I
4.2 4.4 1.3
9
CD-SIM
CD serial data
O
5.1 5.3 5.3
10
CD-SCKM
Shift clock for CD serial
data
data
O
5.1 5.3 5.3
11
PBUS.IN
PBUS data
I
1.0 1.2 0.8
12
PBUS.OUT
PBUS data
O
0
0
0
13
PBUS.CLK
PBUS clock
I
1.1 1.2 0.8
14
NC
No connection
-
-
-
-
15
NC
No connection
-
-
-
-
16
NC
No connection
-
-
-
-
17
VOL.CLK
Electronic volume clock
O
0
0
0
18
VOL.DATA
Electronic volume data
O
0
0
0
19
ANT.ON
Antenna power on/off
O
5.2 5.4
0
20
WOOFER.C
Woofer amp. control
O
5.3 5.4 5.4
21
MUTE
System mute
O
0
0
0
22
AMP.C
Power Amp. stand-by
O
5.3 5.4 5.4
23
ILL.DET
ILL. detection
I
0
0
0
24
NC
No connection
-
-
-
-
25
NC
No connection
-
-
-
-
26
NC
No connection
-
-
-
-
27
AVDD
+5V power supply
-
5.3 5.4 5.4
28
NC
No connection
-
-
-
-
29
NC
No connection
-
-
-
-
30
SD
B/S detection
I
0
0
0
31
FM.ST
FM stereo detection
I
0.6 2.2
0
32
AVSS
Ground
-
0
0
0
33
REGCPU
Bypass capacitor terminal
-
3.6 3.6 3.6
34
VDD
+5V power supply
-
5.4 5.4 5.4
35
REGOSC
Bypass capacitor terminal
-
5.4 5.4 5.4
36
X2
Crystal oscillator
-
2.5 2.5 2.5
37
X1
Crystal oscillator
-
2.5 2.5 2.5
38
GND
Ground
-
0
0
0
39
SSC
Serch stop clear
O
0
0
0
40
GND
Ground
-
0
0
0
41
AM.IF
AM IF counter
O
0.5 1.3 0.8
42
FM.IF
FM IF counter
O
0.7 1.3 0.8
43
PLL.VDD
PLL +5V power supply
-
5.4 5.4 5.4
44
FM.OSC
FM local OSC
I
2.8 0.6
0
45
AM.OSC
AM local OSC
I
0.8 2.1
0
46
PLL.GND
Ground
-
0
0
0
47
PD
LPF control
O
1.2 1.5 1.5
48
NC
No connection
-
-
-
-
49
IC
(Connecting to ground)
-
0
0
0
50
/RESET
System reset
I
5.3 5.3 5.3
51
CD.EJ
CD eject switch
I
5.4 5.4 5.4
52
NC
No connection
-
-
-
-
53-57 NC
No connection
-
-
-
-
58
NC
No connection
-
-
-
-
59
BEEP
Beep output
O
0
0
0
60
FM.CONT
FM radio power control
O
5.3
0
0
61
WB.CONT
WB radio power control
O
8.8 8.8 8.8
62
AM/FM CONT Radio power cont.
O
0.6 0.6 8.8
63-68 NC
No connection
-
-
-
-
69
SI
Data input for
maintenance
maintenance
I
0
0
0
70
SO
Data output for
maintenance
maintenance
O
0
0
0
71
TEL.ON
(Ground pull-down)
-
0
0
0
72
NC
No connection
-
-
-
-
73
NC
No connection
-
-
-
-
Pin
No.
No.
Port
Descriptions
I/O
FM
(V)
AM
(V)
CD
(V)
74
NC
No connection
-
-
-
-
75
VFD.RESET
VFD driver reset
O
5.4 5.4 5.4
76
VFD.CE
VFD driver chip enable
O
5.4 5.4 5.4
77
BUS.ON
Data BUS control
O
5.4 5.4 5.4
78
KEY.ENA
Key data enable
I
0
0
0
79
POWER.SW
Power SW on/off
I
5.4 5.4 5.4
80
PBUS.STB
PBUS strobe
O
1.0 1.3 2.4
81
ILL.DET
(ACC5V pull-up)
I
0
0
0
82
GND
Ground
-
0
0
0
83
TEST.P
Test point
I
5.3 5.3 5.3
84
SYIYOU1
Specification setting
I
5.4 5.4 5.4
85
NC
No connection
-
-
-
-
86
NC
No connection
-
-
-
-
87
NC
No connection
-
-
-
-
88
NC
No connection
-
-
-
-
89
P.CONT
Power control
O
5.4 5.4 5.4
90
VFD.CNT
VFD DC-DC control
O
5.3 5.3 5.3
91-98 NC
No connection
-
-
-
-
99
VDD
+5V power supply
-
100
GND
Ground
-
0
0
0
Note : Voltage measuerments are with respect to ground, with
a voltmeter (internal resistance : 10M ohms).
a voltmeter (internal resistance : 10M ohms).
8.2. Display Block
IC901 : C2BBGE000610
Pin
No.
No.
Port
Descriptions
I/O
Vol
(V)
(V)
1-7
NC
No connection
-
-
8
COG.LAT
VFD test
O
0
9
VSS0
Ground
-
0
10-13 VDD
+5V power supply
-
5.3
14
COG.BK
VFD blanking
O
4.6
15
VDD
+5V power supply
-
5.3
16
COG.SI
VFD serial data
O
0.5
17
COG.CLK
VFD data shift clock
O
4.7
18
DISP.DATA
Display data
I
1.8
19
KEY.DATA
Key data
O
0
20
VFD.CLK
VFD data shift clock
O
5.3
21
KEY.ENA
Key enable
O
0
22,23 NC
No connection
-
-
24
VDD1
+5V power supply
-
5.3
25
AVSS
Ground
-
0
26-33 NC
No connection
-
-
34
GND
Ground
-
0
35
AVDD
+5V power supply
-
5.3
36
RESET
Reset input
I
5.3
37
NC
No connection
-
-
38
VDD
+5V power supply
-
5.3
39
IC
(Ground pull-down)
I
0
40
X2
Crystal oscillator
-
3.1
41
X1
Crystal oscillator
-
3.0
42
VSS1
Ground
-
0
43
VFD.CE
VFD chip enable
I
5.3
44
BUS.ON
Data BUS control
I
5.3
45-52 NC
No connection
-
-
53
ACC 5V.DET
ACC 5V detection
I
5.3
54
EN.B
Encoder data
I
5.3
55
EN.A
Encoder data
I
5.3
56-59 KS1-4
Key strobe
O
5.3
60-64 KI1-5
Key data
I
5.3
8 TERMINALS DESCRIPTION
7
CUSTOM MADE FOR SUBARU / CQ-EF7360A
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