Panasonic CQ-LH5080L Service Manual ▷ View online
5 BLOCK DIAGRAM
5
HONDA / CQ-LH5080L
6.1. Main Block
IC601 : C2CBJG000165
Pin No.
Port
Description
I/O
(V)
1
AMP-MUTE
Power amp mute
O
0
2
NAVI-L-MUTE Not used
-
-
3
MUTE
Mute output
O
0
4
AMP-ON
Power Amp stand-by
O
4.9
5
FL-MUTE
Front speaker Lch mute
O
4.9
6
FR-MUTE
Front speaker Rch mute
O
4.9
7
REAR-MUTE
Rear speaker mute
O
4.9
8
SYS-ACC
System ACC on
O
0
9
NAVI-R-MUTE Not used
-
-
10
ACC CNT
ACC 5V power on/off
O
0
11
RESET
Reset input
I
4.9
12
XT2
Crystal oscillator terminal
-
2.5
13
XT1
Crystal oscillator terminal
-
2.3
14
VSS
Ground
-
0
15
X2
Crystal oscillator terminal
-
2.1
16
X1
Crystal oscillator terminal
-
2.0
17
REGOFF
(Connecting to ACC5V)
-
4.9
18
REGC
(Connecting to ACC5V)
-
4.9
19
VDD
+5V power supply
-
4.9
20, 21 NC
No connection
-
-
22
MS
MS detection
I
0
23
MS(PL/FF)
MS mode selection
O
0
24
T.LOAD
Tape loading detection
I
0
25
DOLBY
Dolby NR on/off
O
0
26
F/R
Tape head change
O
0
27
EQ(MTL)
Metal tape mode selection
O
4.9
28
A/B
Tape side detection
I
0
29
MSM
MS gain contrl
O
4.9
30
T.IN
Tape-in detection
I
0
31
LCD ON
LCD illumi. on/off
O
4.9
32
LCD-CE
LCD driver enable
O
0
33
LCD-CLK
Shift clock for LCD data
O
0
34
LCD-DI
LCD data
O
5.1
35
LCD-DO
LCD data
I
4.7
36
SD/VCONT
(ground pull-down)
-
0
37
M2F
Main motor control
O
0
38
CA.PON
Tape power control
O
4.7
39
CM.PON
Tape power control
O
4.6
40
VSS
Ground
-
0
41
VDD
+5V power supply
-
4.9
42
M2
Main motor control
O
0
43
M1-2
Loading motor control
O
0
44
M1-1
Loading motor control
O
0
45
BIT1
Tape mode switch
I
4.6
46
A.END
Tape end signal
I
1.5
47
B.END
Tape end signal
I
2.4
48
BIT2
Tape mode switch
I
4.6
49
EQ
Metal/Normal switchl
I
0
50
BIT3
Tape mode switch
I
0
51
CLOCK
(+5V pull-up)
-
4.9
52
POWER
Power switch I
4.9
53
SEC-LED
Security LED on/off
O
4.9
54
TEL-MUTE
Not used
-
-
55
AM/FM
AM/FM selection
O
4.9
56
R.ON
Radio power on/off O
4.9
57
SEC2
(Ground pull-down)
-
0
58
SEC-CS
Not used
-
-
59
SEC-CLK
Not used
-
-
60
SEC-DI
Not used
-
-
61
SEC-DO
Not used
-
-
62
NC(ASTB)
Not used
-
-
63
REMO
(Ground pull-down)
-
0
64
3/4
(Ground pull-down)
-
0
65
RDS-CLK
Not used
-
-
66
RDS-DATA
Not used
-
-
67
SEC-SEL
(+5V pull-up)
-
4.9
68
RMODE
Radio mode
O
4.9
69
SD.ST
FM stereo detection
I
4.9
70
AREA SEL
(+5V pull-up)
-
4.9
71, 72 NC
No connection
-
-
73
TESTMODE
(Connecting to ground)
-
0
74
VSM
Phase diff. level detection
I
0
75
MP
(Connecting to ground)
-
0
76
NOISE
(Connecting to ground)
-
0
77
REMOCON
(Connecting to ground)
-
0
78
RDS-MUTE
Not used
-
-
79
TEST
(+5V pull-up)
-
5.0
80
VOL CLK
Electronic volume clock
O
0
81
VOL DATA
Electronic volume data
O
0
82
AVDD
+5V power supply
-
4.9
83
AVREF1
Analog reference voltage
I
4.8
84
AVSS
Ground
-
0
85
LAN-IN
LAN data input
I
0
86
LAN-OUT
LAN data output
O
0
87
NC
(Connecting to ground)
-
0
88
VOL-A
Rotary encoder data
I
5.0
89
VOL-B
Rotary encoder data
I
5.0
90
BAT-DET
Battery level detection
I
4.9
91
VOL-C
Rotary encoder data
I
0.9
92
ACC-DET
ACC level detection
I
4.9
93
EJECT
Tape eject SW
I
4.6
94
VOL-D
Rotary encoder data
I
0.9
95
PLL-DO
PLL data
O
0
96
PLL-CLK
Shift clock for PLL data
O
0
97
PLL-DI
PLL data
I
5.1
98
PLL-CE
PLL chip select
O
0
99
BEEP
Beep output
O
0
100
P.CONT
System power on/off
O
4.9
Note :
Voltage measuerments are with respect to ground, with a
voltmeter (Internal resistance : 10M ohms.)
voltmeter (Internal resistance : 10M ohms.)
6.2. Display Block
IC901 : YEAMLC75854
Pin No.
Port
Description
I/O
(V)
1-6
P1-6
Not used
-
-
7-39
S33-1
LCD segment data
O
2.5
40-43
COM1-4
LCD common
O
2.5
44-47
KS1-4
Key strobe
O
0.9
48,49
KS5,6
Not used
-
-
50-53
KI1-4
Key data
I
0
54
KI5
Not used
-
-
55
TEST
(Connecting to ground)
-
0
56
VDD
+5V power supply
-
5.1
57
VDD1
LCD angle
-
3.3
58
VDD2
LCD angle
-
1.7
59
VSS
Ground
-
0
60
OSC
Oscillator terminal
-
3.9
61
DO
Key data output
O
4.4
62
CE
LCD driver chip enable
I
0
63
CL
Shift clock for LCD data
I
0
64
DI
LCD data input
I
0
6 TERMINALS DESCRIPTION
6
HONDA / CQ-LH5080L
IC204 : C1BB00000284
IC250 : C1BA00000324
7 PACKAGE AND IC BLOCK DIAGRAM
PK50 : YEAU03340E02
7
HONDA / CQ-LH5080L
IC604 : MN1382KTX
IC605 : YEAMH12187ER
IC461 : YEAMAA6759TT
IC471 : YEAMLC72146T
8
HONDA / CQ-LH5080L
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