DAEWOO ELECTRONICS AKD-0105 Series, Руководство по обслуживанию

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FUNCTION OF MICOM IC
36
PIN
39
40
18
44
42
41
43
65
64
38
47
60
37
59
66
62
PIN NAME
PO1
PO0
PD0
PN0/BEEP
PN2
PN3
PN1
PH1/ADI1
PH2/ADI2
PO2
PM1
PJ0
PO3
PJ1
PH0/ADI0
PI0
DESCRIPTION
TUNER MUTE PORT.
WHEN TUNING, OUTPUT IS HIGH THEN MUTE IS ON.
(SEEK, WHEN SD CHECK)
AUDIO MUTE PORT, ACTIVE HIGH
AUDIO MUTE PORT, ACTIVE LOW
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 CHOUSED. 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
TA=0 LOW AT TP STANDBY MODE
TA=1 HIGH OUTPUT IS LOW (AT STARTING AND OTHER MODES)
USED RADIO MODE ONLY. STARTING OUTPUT IS LOW.
MONO MODE LOW
STEREO MODE HIGH
SIGNAL METER INPUT TERMINAL
RANGE-AT SEEK LOCAL :
DX :
AT AF
SECURITY CODE STORAGE.
NORMAL 5V, ACTIVE 2.5V
I/O
O
O
O
O
O
O
O
I
I
O
O
I
O
O
I
I
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