JVC RX-7000RBK Service Manual page 20

RX-7000RBK
MN173222DG(IC400):FL Display & Operation switch control
1.Pin layout
84 64
1 63
21 43
22 42
2.Key matrix
KEY OUT 0
KEY IN 0
POWER
KEY IN 1
SURROUND
KEY IN 2
SPEAKER 1
KEY IN 3
SPEAKER 2
3.Pin function
Pin No.
1~22
23
24~39
G15~G1/KO0~5
40,41
42,43
44
45
46
M COMMAND
47
M STATUS
48
49
50
51
52
53
54
55
56,57
58
59
60~63
64~67
S36~S33
68
69
70
71
72
73
74
75~84
S32~S23
1-20
KEY OUT 2
KEY OUT1
SEA ADJUST
ANALOG/
DIGITAL
DSP MODE FM MODE
LEVEL ADJUST
LOUDNESS
SOUND SELECT
SEA MODE
Symbol I/O
O
S22~S1
-
VPP
O
I
JOG1,2
I
JOG3,4
O
M BUSY
I/O
M CLK
I
O
I
M CS
I
RM
I
VCRI
I
DCSI
O
DCSO
O
VCRO
O
TVD
O
TVC
I
JOG5,6
I
POWER
O
I
KI3~KI0
O
I
RST
-
X1
-
X2
-
VSS
-
OSC2
-
OSC1
-
O
KEY OUT 3
FM/AM TUNING
TUNER PRESET
MEMORY
SETTING
Description
FL Segment control signal
Power supply terminal
FL grid control signal / Key matrix output
Source select JOG1,2
Volume JOG 3,4
BUSY Signal output to IC401
Clock signal to IC401
Command data input from IC401
Status signal output to IC401
Chip select signal input from IC401
Remote control signal input
AV Compu-link VCR input
AV Compu-link DCS input
AV Compu-link DCS output
AV Compu-link VCR output
AV Compu-link TV output
AV Compu-link TV control output
Multi JOG 5,6
Power ON control output
STANDBY LED control H:Lighting
Key matrix input
FL Segment control signal
Reset input
Connect to GND
Non connect
Connect to GND
Oscillation terminal 6MHz
Oscillation terminal 6MHz
Not use
FL Segment control signal
KEY OUT 4
KEY OUT 5
DISPLAY MODE ONE TOUCH
OPERATION
TA/NEWS/INFO
EON
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