DAEWOO ELECTRONICS AKD-0105 Series, Service Manual

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FUNCTION OF MICOM IC
43
32
34
57
58
49
PQ0
PP2
PJ3
PJ2
PL3
DETACHABLE ON / OFF INPUT PORT
CONTACT HIGH
SEPARATE LOW
CDC MODE ON OUTPUT PORT.
OUTPUT IS HIGH IN CDC MODE.
OUTPUT IS LOW IN OTHERS CONDITION.
REFER TO ATTACHED PAGE ABOUT CDC
COMMUNICATION SPECIFICATION.
CDP MODE ON OUTPUT PORT.
OUTPUT IS HIGH IN CDP MODE.
OUTPUT IS LOW IN OTHERS CONDITION REFER TO ATTACHED PAGE
ABOUT CDC
COMMUNICATION SPECIFICATION
CDP EJECT CONTROL SIGNAL.
OUTPUT IS HIGH AT STARTING.
OUTPUT IS LOW WHEN CDP EJECT KEY IS IN.
SIGNAL FOR CD MECHA CONTROL MICOM RESET.
ON / OFF CONTROL SIGNAL FOR CD MECHA POWER.
KEY & LC DRIVER IC INTERFACE PORTS.
I
O
I
O
O
O
O
O
O
I
O
O
O
PIN
33
45
56
50
51
52
11
12
13
14
PIN NAME
PP3
PM3
INT0
PL2
PL1
PL0
SI2
SO2
SCK2
PE0
DESCRIPTION
POWER CONTROL PORT.
POWER OFF LOW, POWER ON HIGH
WHEN MICOM RESET, OUTPUT IS HIGH.
(LCD BACK LIGHTING)
WARING LED OUTPUT PORT.
1 : 3
TO TURN ON AND OFF LED BY CYCLE OF 1 SEC.
N.C
CDP / CDC DISPLAY DATA INPUT PORT
CDP / CDC CONTROL DATA OUTPUT PORT
I/O
O
I
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