Kenwood KDC-2027SA/SAY/SG/SGY User Manual

KDC-2027SA/SAY/SG/SGY, 3027A/AY/G/GY
KDC-308A/AY/G/GY, 4027/V/VY/Y, F327A/G
5
MICROCOMPUTER’S TERMINAL DESCRIPTION
● SYSTEM MICROCOMPUTER : UPD780058GC55x (X34 : IC1)
Pin No. Name I/O Description Processing Operation
1PANEL I Panel detection H : Panel detached, L : Panel attached
2 8EJE SW I
H : Eject is completed
Except 8cm CD model : Always output L
3NCONot used (out put L)
4Avss
H : Panel detached, L : RESET
5 L-RST O LCD driver RESET Normal H, Power off L
When 7seg model, output L
6 L-CE O LCD driver selection
H : Select (panel communication)
When panel attached, output L
7AVREF1
8NC Not used (connected to 9pin)
9 IC10-DATA I/O IC10, E2PROM data communication Non communication : H
10 IC10-CLK O IC10, E2PROM clock communication Non communication : H
Non communication : H
11 L-DATAL I Data input from the LCD driver When panel detached : L
Pull down on X34 unit, Pull up on X16 unit
12 L-DATAS O Data output to the LCD driver When panel detached, output L
13 L-CLK O Clock output to the LCD driver When panel detached, output L
14 R-DATA I Data input from the RDS Except RDS model : Output L
15 R-QUAL I Quality input from the RDS Except RDS model : Output L
16 CH-DATAC I Data input from the changer (new 5L) Except changer model : Output L
17 CH-DATAH O Data output to the changer (new 5L)
When non communication, last data keeping
Except changer model : Output L
18 CH-CLK I/O Clock input/output with the Changer (new 5L)
Check the old and new
Except changer model : Output L
19 CH-REQH O Request output to the changer (new 5L)
L : Requset
Except changer model : Output L
20 NC O Not used (output L)
21 AFS O Noise detection time constant switching terminal
H : Normal, L : FM/AM seek and AF search
(When tuner SRC auto zero, L)
22~24 NC O Not used (output L)
25 CH-CONT O Changer control
H : Changer on, L : Changer off
Except changer model : Output L
26 TYPE REF O 5V lines output for destination setting H : During destination reading
27 SD I Tuner SD input H : Station detected
28 NC O Not used (output L)
29 TYPE2 I Destination type selection terminal 2 Refer to destination type list.
30 TYPE1 I Destination type selection terminal 1 Refer to destination type list.

Kenwood KDC-2027SA/SAY/SG/SGY Specifications

General

Brand	Kenwood
Model	KDC-2027SA/SAY/SG/SGY
Category	Car Receiver
Language	English