Kenwood KDC-CPS89, Service Manual

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KDC-CX87/CPS87
6
MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No. Pin Name I/O Description Processing Operation
1 NOR/RW O CD-DA/CD-RW Switching Not used(N.C.)
2 TSTB O CD-TEXT parameter strobe
3 P-CON O P-CON output Not used(N.C.)
4 FOK I Focus OK input "Hi" : Focus OK
5 XTALEN O Servo IC oscillation stop control "Hi" : Oscillation stop
6 RST O Servo IC reset terminal "Lo" : Reset
7 SAO O Servo IC command/parameter setting terminal "Hi" : Parameter setting, "Lo" : Address resister setting
8 SSTB O Servo IC command/parameter setting strobe terminal "Hi"
➝
"Lo" : Serial data latch
9 VDD - Positive power supply connection terminal Connected to D 5V lines.
10 X2 - Main clock resonator connection terminal 2
11 X1 I Main clock resonator connection terminal 1
12 VSS - Ground connection terminal Connected to GND lines.
13 XT2 - Sub clock resonator connection terminal 2 Not used(N.C.)
14 XT1 I Sub clock resonator connection terminal 1 Not used(connected to GND lines.)
15 RESET I System reset input "Lo" : System reset
16 FOGUP I Vibration detect input "Hi" : Vibration detect
17 MGSW I Magazine switch input "Hi" : Magazine in
18 EJSW I Eject switch input "Hi" : Eject switch ON
19 COMMSW I 5-line communication old/new switch input "Hi" : New communication, "Lo" : Old communication
20 PACK I Text data pack synchronous signal input "Hi"
➝
"Lo" : The head of the pack data
21 CH-CON I Changer control input "Hi" : Standby mode, "Lo" : Operation mode
22 BUDET I Momentary power down detection input
"Hi" : When momentary power down detected or BU OFF
"Lo" : BU ON
23 AVDD - A/D converter positive power supply connection terminal Connected to D 5V lines.
24 AVREF0 I A/D converter reference voltage input Connected to PON 5V lines.
25 HOT I Rise in temperature detection input
26 LPS I LPS Mechanical deck position detection input
27 LOESW I Loading complete switch input "Lo" : Loading complete
28 LIMSW I Limit switch input "Lo" : Pickup most inner position
29 TOFF I Tracking OFF mode terminal Not used(pull down to GND lines.)
30 ADJSEL I Servo automatic adjustment ON/OFF terminal Not used(pull down to GND lines.)
31 TBANK I Tracking gain switching mode terminal Not used(pull down to GND lines.)
32 SIM2 I Destination input 2 Not used(pull down to GND lines.)
33 AVSS - A/D, D/A converter ground connection terminal Connected to GND lines.
34 LPSCO O LPS A/D converter reference power control output Not used(N.C.)
35 AMUTE O Audio mute output "Lo" : Audio mute ON
36 AVREF1 I D/A converter reference voltage input Connected to D 5V lines.
37 SDI I Servo IC communication serial data input
38 SDO O Servo IC communication serial data output
39 SCK O Servo IC communication serial clock output
40 DATAH I Data input from H/U
41 DATAC O Data output from the changer
42 HCLK I/O Communication clock input/output with H/U
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IC7 (CD PLAYER UNIT : X32-5160-00)