Daewoo AKD-0275 Series, Руководство по обслуживанию

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FUNCTION OF MICOM IC
- 30 -
PIN
46
47
38
44
60
59
37
65
61
45
48
16
15
66
64
40
PIN NAME
PM2
PM1
LAMP
PN0/BEEP
PJ0
PJ1
PO3
PH1/ADI1
PI1/ADI5
PM3
PM0
PD2
PD3
PH0/ADI0
PH2/ADI2
PO0
DESCRIPTION
TUNER MUTE PORT.
WHEN TUNING, OUTPUT IS HIGH THEN MUTE IS ON.
(SEEK, WHEN SD CHECK)
AUDIO MUTE PORT, ACTIVE HIGH
AFTER FRONT PANEL IS RELEASED, LAMP IS EXTINGUISHED IN
20 SECONDS
OUTPUT PORT OF BEEP.
BEEP COMES OUT AT 2.08, OR 3.75kHz DEPENDING ON
OPERATION REQUESTED
BAND SELECT PORT IN TUNER MODE.
FM MW LW
BAND_1 H L L
BAND_2 L H L
WHEN RADIO MODE IS CHOSEN. OUTPUT IS HIGH
STEREO INPUT TERMINAL
STARTING IS HIGH, WHEN INPUT IS LOW ON AIR STEREO IS
DISPLAYED
SIGNAL DETECTION PORT.
STARTING INPUT IS HIGH, INPUT IS CHANGED INTO LOW
WHEN RECEIVING THE RADIO FREQUENCY.
MUTING (WHEN CHECKING AF IN RADIO MODE)
LOW (IN ACTIVE, HIGH AND OTHERS MODES)
INPUT TERMINAL OF USING-TELEPHONE SIGNAL STARTING IS HIGH.
MUTING IF ACTIVE BECOMES
LOCAL MODE HIGH
DX MODE LOW
STARTING IS LOW
USED RADIO MODE ONLY. STARTING OUTPUT IS LOW.
MONO MODE LOW
STEREO MODE HIGH
SIGNAL METER INPUT TERMINAL
RANGE-AT SEEK LOC
AL ;
DX ;
AT AF
SECURITY CODE STORAGE.
NORMAL 5V, ACTIVE 2.5V
POWER CONTROL PORT.
POWER OFF LOW, POWER ON HIGH
WHEN MICOM RESET, OUTPUT IS HIGH.
(LCD BACK LIGHTING)
I/O
O
O
O
O
O
O
O
I
I
O
O
I
O
I
I
O