Kenwood KDC-MP819, Service Manual

Page: 5 / 26

KDC-MP819/X659/Z838
5
●
IC5 (SWITCH UNIT : X16-168X-XX)
Pin No. Pin Name I/O Description Processing Operation
1 SC DATA I/O Data input/output with the system MI-COM.
2 MC CLK I Clock input from the system MI-COM.
3 NC O Not used(N.C.)
4 DATA 1 O Data output 1 to the FL driver IC
5 CLK O Clock output to the FL driver IC (Data shift by the rise edge of the pulse)
6 NC O Not used(N.C.)
7 DATA 2 O Data output 2 to the FL driver IC
8 CLK IN I Clock input from the FL driver IC (Data shift by the rise edge of the pulse)
9 EVDD - Positive power supply connection terminal Connected to P5V lines.
10 EVSS - Ground connection terminal Connected to GND lines.
11 RED LED O
Illumination red ON/OFF output in case of two colours
/Illumination ON/OFF output in case of one colour
Lo: ON, Hi: OFF
12 GREEN LED O
Illumination green ON/OFF output in case of two colours Lo: ON, Hi: OFF in case of two colours
/Not used in case of one colour
/Not used(N.C.) in case of one colour
13 REMO I Data input from the remote control light sensor
14 LATCH O Latch output to the FL driver IC Lo: Latch, Hi: Through
15 GCP O Control pulse output to the FL brightness
16 REMO ON I/O
Power supply ON/OFF output to the remote control
Lo: ON, Hi-z: OFF
light sensor IC and BPF IC
17-19 NC O Not used(N.C.)
20 BLK O Display ON/OFF control output Lo: Display OFF, Hi: Display ON
21 TEST I Test terminal Not used(Connected to GND lines)
22-33 NC O Not used(N.C.)
34 RESET I Reset terminal Lo: Reset, Hi: Reset release
35 XT1 - Sub clock resonator connection terminal Not used(Pull down to GND lines)
36 XT2 - Sub clock resonator connection terminal Not used(N.C.)
37 REGC -
Capacitor connection terminal for regulator inside
microprocessor
38 X2 - Main clock resonator connection terminal
39 X1 - Main clock resonator connection terminal
40 VSS - Ground connection terminal Connected to GND lines.
41 VDD - Positive power supply connection terminal Connected to P5V lines.
42-47 NC O Not used(N.C.)
48 FL +3.3V O FL VDD ON/OFF output Lo: OFF, Hi: ON
49 FL+B I/O FL+B ON/OFF output Hi-Z: OFF, Hi: ON
50-55 NC O Not used(N.C.)
56 BLUE LED I/O Source key LED ON/OFF output Hi-Z: OFF, Hi: ON
57 NC O Not used(N.C.)
58 BVDD - Positive power supply connection terminal Connected to P5V lines.
59 BVSS - Ground connection terminal Connected to GND lines.
60-71 NC O Not used(N.C.)
72 SA RESET O Reset output to the BPF IC Hi: Reset
73 NC O Not used(N.C.)
74 AVDD - A/D converter positive power supply connection terminal Connected to P5V lines.
75 AVSS - A/D converter ground connection terminal Connected to GND lines.
76 AVREF - A/D converter reference voltage input terminal
77 F01 I BPF(63Hz) input
78 F02 I BPF(150Hz) input
79 F03 I BPF(330Hz) input
80 F04 I BPF(1kHz) input
81 F05 I BPF(3.3kHz) input
82 F06 I BPF(10kHz) input
83 WAVE IN I Audio input
84 KR5 I Key return 5 input
85 KR4 I Key return 4 input
86 KR3 I Key return 3 input
87 KR2 I Key return 2 input
MICROCOMPUTER'S TERMINAL DESCRIPTION
www. xiaoyu163. com
QQ 376315150
9 9
2
8 9
4 2
9 8
TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299