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Microcomputer's Terminal Description; Operating Condition - Kenwood C929 Service Manual

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C929
QQ
3 7 63 1515 0

MICROCOMPUTER'S TERMINAL DESCRIPTION

(X32-) IC7 : µ-COM
PORT
PORT NAME
No.
1
-
2
TSTB
3
T-BANK
4
F-OK
5
XTALEN
6
RESET
7
SAO
8
SSTB
9
VDD
10
X2
11
X1
12
VSS
13
-
14
XT1
15
RESET
16
FO-GUP
17
MG-SW
18
EJ-SW
19
B-REQ-H
20
PACK
21
SYS-ON
22
BU-DET
TE
L 13942296513
23
AVDD
24
A VREF 0
25
HOT
26
LPS
27
LO-E-SW
28
LIM-SW
29
T-OFF
30
ADJ-SEL
31
TEST1
32
TEST2
33
AVSS
34
AUDIO
35
A-MUTE
36
A VREF 1
37
S-DI
38
S-DO
39
S-CK
40
B-DIC
41
B-DCOM
42
B-CLK
43
B-C/D
44
CH-MUTE
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45
TSI
46
TSO
47
TSCK
.
48
A0
49
A1
50
A2
51
A3
52
A4
4
I/O
FUNCTION
-
-
O
Text data strove.
I
Tracking filter bank SW signal.
I
Focus-on signal.
O
DAC servo IC oscillation stop control.
O
Servo IC reset.
O
Servo IC communication address setting.
O
Servo IC communication strove.
-
VDD
-
Main clock 2.
I
Main clock 1.
-
GND.
-
-
-
Sub clock 1.
I
Reset.
I
Focus gain-up SW.
I
Magazine SW.
I
Eject SW.
I
Communication request signal.
I
Text data - Pack synchronization signal.
I
Changer control from head unit.
I
Back-up momentary power-down detection.
-
VDD.
I
Inner A/D converter reference voltage.
I
Temperature-up detection.
I
Mechanism deck height detection.
I
Loading end SW.
I
Limit switch.
I
Tracking-off mode.
I
Servo automatic adjustment on/off.
I
For mechanism endurance test.
I
For mechanism endurance test.
-
GND.
O
Audio relay control out.
O
Audio mute.
-
Inner A/D converter reference voltage.
I
Servo IC communication serial data.
O
Servo IC communication serial data.
O
Servo IC communication serial clock.
I
Bus serial.
O
Bus serial.
O
Bus serial clock.
O
Bus command data SW.
O
Audio mute to head unit.
I
Text data.
O
Text data.
x
ao
u163
y
O
Text clock.
i
O
Address setting to S-RAM.
O
Address setting to S-RAM.
O
Address setting to S-RAM.
O
Address setting to S-RAM.
O
Address setting to S-RAM.
2 9
8
"H" : Bank 1 (Gain-up mode).
"H" : Focus on.
"H" : Oscillation stop.
"L" : Reset.
"H" : Focus gain up.
"H": Magazine inserted.
"H" : Switch on.
"L" : System on.
"H" : Momentary power down.
Q Q
3
6 7
1 3
1 5
Detects over 4V, releases the detection
when the voltage goes to be under 4V.
"L" : Loading ends.
"L" : Laser pick-up being most inside
detection.
"H" : Tracking off.
"H" : Automatic adjustment off.
"H" : Changer source.
"L" : Mute on.
"L" : Mute on.
co
.
9 4
2 8

OPERATING CONDITION

0 5
8
2 9
9 4
2 8
m
9 9
9 9

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