KDC-205/CR, 226
KDC-2026, 3026/R
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)
● DAUGHTER UNIT (X89-2590-10)
Ref No. Application/Functions Operation/Condition/Compatibility
Q221,222 Audio muting SW Audio preout is muted when the base goes “H”.
Q225 Audio muting driver Mute driver for audio muting switch.
COMPONENTS DESCRIPTION
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i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
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
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