Kenwood KRC-597, Руководство по обслуживанию

Страница: 6 / 28

KRC-597/597Y
6
Pin No. Pin Name I/O Application
Truth Value
Processing Operation Description
Table
1 VREF- GND for A/D
2 F REEL I Reel pulse FWD C mechanism reel pulse output FWD. Vth=2.5V
3 R REEL I Reel pulse REW C mechanism reel pulse output REW. Vth=2.5V
4 S-METER I K3I TUNER S-METER
5 IFC-OUT I IF COUNT 0V or 5V
6 NOISE I FM noise DET terminal
7 PHONE I PHONE DET terminal
TEL MUTE : 1V or less NAVI MUTE : 2.5V or less
1V or less, 2.5V or more and NAVI MUTE only for J
8 DCDET RESERVE I Turn lLLUMI down when DE DET is not used DC offset DET terminal for P-IC
9 GND GND
10 VREF+ VCC for A/D
11 VDD
µ
-com main VCC
12 MAIN OSC1 Main oscillation input 8.38MHz
13 MAIN OSC2 Main oscillation input
14 VSS
µ
-com main GND
15 SUB OSC1 32.768kHz oscillation input
16 SUB OSC2 32.768kHz oscillation input
17 GND GND External ROM
18 LX-DATAM O DATA output terminal to CH Retain last
19 LX-DATAS I DATA input terminal from CH
20 LX-CLK O CLK input/output terminal with CH
21 FLASH READ O
22 FLASH WRITE O
23 FLASH CLK O
24 BEEP O Beep for internal amp
25 PANEL-DET I DET terminal for panel DET or no panel DET Panel no DET : L, Panel DET : H
26 REMO I Remote control input
27 R-CLK I CLK for RDS decoder No destination : Output fixed to L
28 LX-REQS I Request input from CH Request DET : L
29 B.U-DET I Momentary power dropped detection BU DET : L, B.U-DET (momentary power dropped) : H
30 EJECT I Tape eject L : KEY input
31 KEY-REQ I Communication request from LCD driver L : KEY input
32 VDD I VDD
33 RESET I Reset
34 EQ MUTE O EQ MUTE
During TAPE PLAY : L, During TAPE FF/REW : H,
In other modes than TAPE : H
35 DOLBY O B NR ON/OFF
B NR ON : H, B NR OFF : L,
In other modes than TAPE : Retain value
MICROCOMPUTER’S TERMINAL DESCRIPTION
●
SYSTEM MICROCOMPUTER : MN101C49HNB (IC1 : X14)