Kenwood KDC-CX85 Service Manual page 5

MICROCOMPUTER'S TERMINAL DESCRIPTION
UPD 784214GC-066 : IC7 (X32-4680-00)
Pin Pin Name I/O
1 P120/RTP0 O
2 P121/RTP1 O
3 P122/RTP2 I
4 P123/RTP3 I
5 P124/RTP4 O
6 P125/RTP5 O
7 P126/RTP6 O
8 P127/RTP7 O
9 VDD -
10 X2 -
11 X1 I
12 VSS
13 XT2
14 XT1
15 RESET I
16 P00/INTP1 I
17 P01/INTP2 I
18 P02/INTP2 I
19 P03/INTP3 I
20 P04/INTP4 I
21 P05/INTP5 I
22 P06/INTP6 I
23 AVDD -
24 AVREF0 I
25 P10/ANI0 I
26 P11/ANI1 I
27 P12/ANI2 I
28 P13/ANI3 I
29 P14/ANI4 I
30 P15/ANI5 I
31 P16/ANI6 I
32 P17/ANI7 I
33 AVSS -
34 P130/ANO0 O
35 P131/ANO1 O
36 AVREF1 -
37 P70/RxD2/SO2 I
38 P71/TxD2/SO2 O
39 P72/ASCK2/SCK2 O
40 P20/RxD1/SI1 I
Function
LDON Pickup laser ON
TBCO Tracking filter coefficient switching signal output
TBCI Tracking filter coefficient switching signal input
RFOK Focus ON status signal input
XOFF Servo IC oscillation stop control
RST Servo IC reset terminal
SAO Servo IC address setting
SSTB Servo IC communication strobe
VDD Positive power voltage connection terminal
X2 Oscillator connection terminal 2
X1 Oscillator connection terminal 1
VSS GND potential connection
XT2 Subclock connection terminal 2
XT1 Subclock connection terminal 1
RESET Reset
SBSY Sub-code Q read timing detection terminal
MGSW Magazine switch
EJSW Eject switch
COMMSW 5-line communicatin old/new swtich
DQSY Text data read permission signal input
CHCON Changer control input from H/U
BUDET BU instant dip detection terminal
AVDD A/D converter analog power terminal
AVREF0 AD converter reference voltage input
HOT Rise in temperature detection
LPS Mechanical deck position detection
LOESW Loading compete switch
LIMSW Limit switch
TYPE0 For test mode
TYPE1 For test mode
SLG1 For setting thread loop gain
SLG2 For setting thread loop gain
AVSS A/D converter reference GND terminal
LPSCO A/D converter reference power control
AMUTE Audio mute
AVREF1 A/D converter reference power terminal
SDI Servo IC communication serial data input
SDO Servo IC communication serial data output
SCK Servo IC communication serial clock output
DATAH Data input from H/U
KDC-CX85/CPS85
Description Processing Operation
H: Laser ON
H: Gain-up mode
H: Gain-up mode
H: Focus ON
H: Oscillatin stop
L: Reset
H: Magazine in
H: Swtich ON
H: New communication
L: Old communication
L: Loading complete
L: Pickup detection of
innermost track
L: Mute ON
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