33
FUNCTION OF MICOM IC
PIN
39
40
44
42
41
22
43
65
64
38
47
62
63
60
59
66
PIN NAME
PO1
PO0
PN0/BEEP
TUNER MUTE PORT.
WHEN TUNING, OUTPUT IS HIGH THEN MUTE IS ON.
(SEEK, WHEN SD CHECK)
AUDIO MUTE PORT, ACTIVE HIGH
OUTPUT PORT OF BEEP.
BEEP COMES OUT AT 2.08, OR 3.75kHz DEPENDING ON
OPERATION REQUESTED
BAND SELECT PORT IN TUNER MODE.
RESET
FM
MW
LW
BAND_1
0
1
0
0
BAND_2
0
0
1
0
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 LOCAL : CHECK SD ACTIVE
DX : CHECK SD ACTIVE
AT AF
: AF CHECK STOP VOLTAGE 1.5V
TAPE MODE : HIGH
RADIO MODE : HIGH
PN2
PN3
PC0
PN1
PH1/
ADI1
PH2/
ADI2
PO2
PM1
PI0
PH3
PJ0
PJ1
PH0/
ADI0
DESCRIPTION
I/O
O
O
O
O
O
O
O
I
I
I
I
O
O
O
I
Содержание AKF-3825 series
Страница 5: ...3 LINE DRAWING 2 2 REAR SIDE ...
Страница 9: ...4 ADJUSTMENTS 7 4 1 EQUIPMENTS CONNECTIONS ...
Страница 10: ...ADJUSTMENTS 4 2 TUNER MODULE ADJUSTMENT LOCATIONS 8 ...
Страница 14: ...12 5 SCHEMATIC DIAGRAMS 5 1 BASIC Series AKF 3825 Size A3 ...
Страница 15: ...13 5 2 BASIC Series AKF 8825 SCHEMATIC DIAGRAM Size A3 ...
Страница 16: ...14 5 3 RDS Series AKF 8825R SCHEMATIC DIAGRAM Size A3 ...
Страница 17: ...PART SIDE 6 1 PCB MAIN 15 6 PARTS LOCATION ON P C BOARD AKF 3825 AKF 8825 Basic RDS ...
Страница 18: ...PARTS LOCATION ON P C BOARD 16 BOTTOM SIDE ...
Страница 19: ...6 2 PCB FRONT 17 PARTS LOCATION ON P C BOARD PART SIDE BOTTOM SIDE ...
Страница 20: ...18 PARTS LOCATION ON P C BOARD 6 3 ISO PCB ...
Страница 21: ...19 7 OVERALL EXPLODED VIEW PARTS LIST 7 1 AKF 3825 Basic Size A3 ...
Страница 22: ...7 2 AKF 8825 Basic RDS 20 OVERALL EXPLODED VIEW PARTS LIST Size A3 ...
Страница 23: ...8 1 EXPLODED VIEW TN 301NX 219 for AKF 3825 21 8 DECK MECHANISM EXPLODED VIEW PARTS LIST ...
Страница 26: ...24 DECK MECHANISM EXPLODED VIEW PARTS LIST 8 3 EXPLODED VIEW TN 715 DH 109 for AKF 8825 Series ...
Страница 33: ...31 10 FUNCTION OF MICOM IC 10 1 PIN CONFIGURATION TOP VIEW ...
Страница 39: ...37 11 IC BLOCK DIAGRAM 11 1 LC75854 IC LCD DRIVER ...
Страница 40: ...38 IC BLOCK DIAGRAM 11 2 TDA7372B Audio Power IC IC502 ...
Страница 41: ...IC BLOCK DIAGRAM 39 11 3 TDA7365 Audio Power IC IC502 ...
Страница 42: ...IC BLOCK DIAGRAM 40 11 4 LC75371M IC EVR IC501 ...
Страница 43: ...IC BLOCK DIAGRAM 41 11 5 LC7270M LC72722 RDS IC201 ...