5
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-8, KCC-654V
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.
R2
Check Antenna connector part.
Summary of Contents for AKF-8825 series
Page 5: ...3 LINE DRAWING 2 2 REAR SIDE ...
Page 9: ...4 ADJUSTMENTS 7 4 1 EQUIPMENTS CONNECTIONS ...
Page 10: ...ADJUSTMENTS 4 2 TUNER MODULE ADJUSTMENT LOCATIONS 8 ...
Page 14: ...12 5 SCHEMATIC DIAGRAMS 5 1 BASIC Series AKF 3825 Size A3 ...
Page 15: ...13 5 2 BASIC Series AKF 8825 SCHEMATIC DIAGRAM Size A3 ...
Page 16: ...14 5 3 RDS Series AKF 8825R SCHEMATIC DIAGRAM Size A3 ...
Page 17: ...PART SIDE 6 1 PCB MAIN 15 6 PARTS LOCATION ON P C BOARD AKF 3825 AKF 8825 Basic RDS ...
Page 18: ...PARTS LOCATION ON P C BOARD 16 BOTTOM SIDE ...
Page 19: ...6 2 PCB FRONT 17 PARTS LOCATION ON P C BOARD PART SIDE BOTTOM SIDE ...
Page 20: ...18 PARTS LOCATION ON P C BOARD 6 3 ISO PCB ...
Page 21: ...19 7 OVERALL EXPLODED VIEW PARTS LIST 7 1 AKF 3825 Basic Size A3 ...
Page 22: ...7 2 AKF 8825 Basic RDS 20 OVERALL EXPLODED VIEW PARTS LIST Size A3 ...
Page 23: ...8 1 EXPLODED VIEW TN 301NX 219 for AKF 3825 21 8 DECK MECHANISM EXPLODED VIEW PARTS LIST ...
Page 33: ...31 10 FUNCTION OF MICOM IC 10 1 PIN CONFIGURATION TOP VIEW ...
Page 39: ...37 11 IC BLOCK DIAGRAM 11 1 LC75854 IC LCD DRIVER ...
Page 40: ...38 IC BLOCK DIAGRAM 11 2 TDA7372B Audio Power IC IC502 ...
Page 41: ...IC BLOCK DIAGRAM 39 11 3 TDA7365 Audio Power IC IC502 ...
Page 42: ...IC BLOCK DIAGRAM 40 11 4 LC75371M IC EVR IC501 ...
Page 43: ...IC BLOCK DIAGRAM 41 11 5 LC7270M LC72722 RDS IC201 ...