Kenwood KAC-PS650D, Service Manual

Page: 2 / 19

(X09-) IC22 : u-COM
PORT
No.
PORT NAME I/O FUNCTION OPERATING CONDITION
1
+5V SW
O Controls small-amount current. "L" : SW 5V on.
2 - - -
-
3
FAN O Controls fan rotation.
"H" : Fan on.
4 - - -
-
5
D VOLTAGE
I Detects class-D over-voltage.
"L" : Over-voltage detection.
6 V DOWN I
Detects momentary power down. "H" : Momentary power-down detection.
7
D CURRENT
I Detects class-D over-current.
"L" (Class-D power on) : Over-current detection.
8
AB VOLTAGE
I Detects class-AB over-voltage.
"L" : Over-voltage detection.
9
AB CURRENT I Detects class-AB over-current.
"H" : Over-current detection.
10 BLUE O Controls BLUE of variable illumination.
"H" : Illumination on.
11
GREEN O Controls GREEN of variable illumination.
"H" : Illumination on.
12 RED O Controls RED of variable illumination.
"H" : Illumination on.
13
TEST - -
-
14
RESET
- Resets.
"L" : Reset.
15
XIN - -
-
16 XOUT - -
-
17
VSS - -
-
18 VAREF - A/D reference.
-
19
ADIN 1 I Detects temperature.
"H" : Unusual temperature detection.
20 ADIN 2 I Detects temperature.
"H" : Unusual temperature detection.
21
ADIN 3 I Detects temperature.
"H" : Unusual temperature detection.
22 ADIN 4 I Detects temperature.
"H" : Unusual temperature detection.
23
- - -
-
24 BASS 12dB I Stabilizes BMS +12dB.
"H" : BMS +12dB stabilization.
25
BASS REMO I Being remote-controlled from BMS head unit.
"H" : remote control available.
26 BASS OFF I Releases boost.
"H" : Boost off.
27
D POWER O Controls class-D amplifier.
"H" : Class-D amplifier on.
28,29 - - -
-
30
POWER O Controls power amplifier.
"H" : SW 14.4V on.
31
COM HU I Measures the head unit pulse.
-
32
OFFSET CON O Controls bass boost frequency offset.
"H" : Offset on.
33
BASS CON A O Controls bass boost frequency offset.
-
34
BASS CON B O Controls bass boost frequency offset.
-
35,36
- - -
-
37
STAND-BY
I Cancels stop mode by P.CON on.
"L" : P.CON on or BACK-UP over-voltage detection.
38,39
- - -
-
40
VDD - VDD.
-
41
TACT SW I Switches color.
"H" : SW on.
42
MUTE 2
O Controls driver stages.
"L" : Mute on.
43
MUTE 1
O Controls amplifier input mute.
"L" : Mute on.
44
- - -
-
KAC-PS650D/X650D
2
MICROCOMPUTER'S TERMINAL DESCRIPTION