6
EMERGENCY TROUBLE SHOOT
3-2. Tuner Function
Hearing noise
only
Yes
No
Yes
No selected the
station
Tuner Module is
inferior goods.
Select exactly
broadcasting
frequency.
Change tuner
module to
superior goods.
Yes
Weak frequency
area caused by
elevations
Change to goods of
R.D.S function.
Yes
A
B
A
Station in
other regions
are not held.
Yes
Yes
No selected the
local stations.
Ref. Point or
Extreme noise
in broadcast
Weak
separation of
FM stereo
Yes
No
Yes
Antenna
connector is
missing
Put exactly
antenna connector
in his jack
Ref.
CAT-6, 7 etc
Electrical Parts List
Function of auto-
switch noise
reduction
Ref.
Yes
Weak frequency
area of FM, AM
Switch
automatically to
mono mode in
weak frequency
area
Yes
B
R1
In case of located Glass Antenna, check if heat wire is cut or not in rear window.
R1
Check Antenna connector part.
Summary of Contents for AKF-0305 Series
Page 4: ...2 2 LINE DRAWING 2 1 AKF 0305 Front Side BASIC RDS ...
Page 5: ...3 LINE DRAWING 2 2 AKF 0315 Front Side BASIC RDS ...
Page 6: ...4 LINE DRAWING 2 3 REAR SIDE BASIC MODEL RDS MODEL RDS CD CHANGER MODEL ...
Page 11: ...4 ADJUSTMENTS 9 4 1 EQUIPMENTS CONNECTIONS ...
Page 12: ...ADJUSTMENTS 4 2 TUNER MODULE ADJUSTMENT LOCATIONS 10 ...
Page 16: ...14 5 SCHEMATIC DIAGRAMS 5 1 BASIC Series AKF 0305 AKF 0315 Size A3 ...
Page 17: ...15 5 2 RDS Series AKF 0305 AKF 0315 SCHEMATIC DIAGRAM Size A3 ...
Page 18: ...16 5 3 OIRT Series AKF 0305 AKF 0315 SCHEMATIC DIAGRAM Size A3 ...
Page 19: ...23 7 OVERALL EXPLODED VIEW PARTS LIST 7 1 AKF 0305 Basic RDS Size A3 ...
Page 20: ...7 2 AKF 0315 Basic RDS 24 OVERALL EXPLODED VIEW PARTS LIST Size A3 ...
Page 21: ...8 1 EXPLODED VIEW ADM 21 25 8 DECK MECHANISM EXPLODED VIEW PARTS LIST ...
Page 26: ...30 10 FUNCTION OF MICOM IC 10 1 PIN CONFIGURATION TOP VIEW RDS MODEL ONLY ...
Page 30: ...34 FUNCTION OF MICOM IC 10 3 PIN CONFIGURATION TOP VIEW NON RDS MODEL ONLY ...
Page 35: ...39 11 IC BLOCK DIAGRAM 11 1 LC75854 LC75852 IC LCD DRIVER IC501 ...
Page 36: ...40 IC BLOCK DIAGRAM 11 2 SAA6579T IC AUDIO IC101 ...
Page 37: ...41 IC BLOCK DIAGRAM 11 3 HA13158A IC AUDIO POWER IC305 ...
Page 38: ...IC BLOCK DIAGRAM 42 11 4 LC75371M IC EVR ...
Page 39: ...IC BLOCK DIAGRAM 43 11 5 24LC16B IC EEPROM IC402 ...
Page 40: ...IC BLOCK DIAGRAM 44 11 6 BA3121 IC ISOLATOR IC302 ...
Page 41: ...IC BLOCK DIAGRAM 45 11 7 LB1641 DRIVER IC301 ...