Main
SERVICE MANUAL
CASSETTE RECEIVER
KS-FX725R
KS-FX725R
Contents
Page
Disassembly method
Removing the heat sink (See Fig.4)
Removing the bottom cover (See Fig.5 , 6)
AA
Page
Removing the control switch board (See Fig.10 ~ 12)
G G GG
KS-FX725R
Removing the reinforce bracket (See Fig.1 and 2)
Removing the head board (See Fig.4)
Removing the cassette guide (See Fig.3)
B
A
Removing the cassette hanger assembly / cassette holder (See Fig.6 to 9)
Removing the load arm (See Fig.5)
Removing the side bracket assembly (See Fig.10 to 12)
C
Removing the pinch arm (F) assembly (See Fig.13 and 14)
Removing the pinch arm (R) assembly (See Fig.13 and 15)
Removing the slide chassis assembly (See Fig.16 and 17)
Removing the head / tape guide (See Fig.18 and 19)
Removing the flywheel assembly (F) & (R) (See Fig.20 and 21)
D
Disassembling the flywheel assembly (F) (See Fig.22 and 23)
Disassembling the flywheel assembly (R) (See Fig.22 and 24)
Removing the reel board (See Fig.25 and 26)
E E
Removing the gear base arm / gear base link assembly (See Fig.27 to 29)
Removing the FFC pad (See Fig.27 and 29)
Removing the mode gear (See Fig.30 and 33)
Removing the mode rack assembly (See Fig.31 and 32)
Removing the direction link / direction plate (See Fig.31 to 33)
Removing the mode switch actuator (See Fig.30, 31 and 33)
Removing the gear base assembly / take up gear / reflector gear (See Fig.34 to 36)
Removing the reel driver / reel spindle (See Fig.36)
Removing the side bracket assembly (See Fig.37 to 41)
Removing the main motor assembly / sub motor assembly (See Fig.42 to 44)
F
G
GF
Adjustment method
Test instruments reqired for adjustment
Measuring conditions(Amplifier section)
Standard volume position
Arrangement of adjusting & test points
Arrangment of adjusting
Head amplifier board section (Reverse side)
Information for using a car audio service jig
Disassembly method
Item Conditions Adjustment and Confirmation methods S.Values Adjust
Description of major ICs
UPD178018AGC584(IC701) : System controller micon
No.
2.Description
24 1 41 64
HA13158A (IC941) : Power amp
CXA2559Q(IC401):Playback equalizer amplifier with music sensor
1.Pin layout
2.Blockdiagram
40 31 11 20
1 10
KS-FX725R
3.Pin function
HA13164(IC961):REGULATOR
SAA6579T-X(IC761):RDS Detector
TEA6320T-X (IC911) : E.volume
1.Pin layout
3.Pin functions
Functions Functions
2.Block diagram
LC75823E (IC651) : LCD Driver
See Function Table
HD74HC126FP-X (IC751) : Buffer
LB1641 (IC402) : DC motor driver
ABC
2-1
Block diagram
Page
Standard schematic diagrams
Receiver & System control section
ABCD E F G
2-3
Mecha control circuit section
Cassette signal
2-4
HABC DE FG
KS-FX725RKS-FX725R
LCD driver & Operation switch section
ABCD E F G
2-5
HABC DE FG
KS-FX725RKS-FX725R
Printed circuit boards
Main board Front board(Forward side)
PARTS LIST
- Contents -
[ KS-FX725R ]
3-2
Exploded view of general assembly and parts list
B
board
Block No.
MM M 1
A
3-3
Parts list (General assembly)
Block No. M1MM
A
3-4
Parts list (General assembly)
Block No. M1MM
A
3-5
Cassette mechanism assembly and parts list
Block No.
P CDS-802JE1
A
3-6
Parts list (Cassette mechanism)
Block No. MPMM
A
3-7
Parts list (Cassette mechanism)
Block No. MPMM
Grease point 1/2
Grease point 2/2
3-10
3-11
3-12
3-13
Item Parts number Parts name Ar
ea
Electrical parts list (Mecha control board)
Remarks
3-14
Electrical parts list (Front board)
Block No. 03
Page
Packing materials and accessories parts list
A
3-17
Parts list (Packing)
A
Block No. M3MM
Parts list (Accessories)
Block No. M5MM
CASSETTE RECEIVER
KS-FX725R/KS-F525
KS-FX725R
KS-F525
5
.
.
.
, . (C 19 22).
:
(FM1 3, AM).
.
:
(FM1 3, AM).
, , M.
FM:
8
FM: SSM
FM (FM 1 3), FM.
2 .
AM
RDS
RDS
(- )
PTY
PTY
RDS
14
FM
3
2
(PS NAME) (FREQ)
(PTY) (CLOCK)
PTY
16
.
.
17
, .
19
, .
VOL
LOUD
BAS
, .
/
BEAT SOFT POP SCM OFF
(PSM)
(PSM)
25
Advanced SCM ( SCM )
-
( KS-FX725R)
27
-
- -
28
-
( )
( )
RPT1 RPT2
RND1 RND2
30
FM/AMDAB
DAB
DAB?
31
.
, .
-
:
FM/AM
DAB
DAB
34
35
:
Page
( )
V
INSTALLATION (IN-DASH MOUNTING)
KS-FX725R/KS-F525
Installation/Connection Manual /
When using the optional stay
ELECTRICAL CONNECTIONS
:
A Typical Connections /
PRECAUTIONS on power supply and speaker connections:
n
B
CD changer and DAB tuner / - - DAB
External component /
CASSETTE RECEIVER
KS-FX725R/KS-F525
CONTENTS
LOCATION OF THE BUTTONS
Control panelKS-FX725R
LOCATION OF THE BUTTONS
Control panelKS-F525
5
Adjust the volume.
Adjust the sound as you want. (See pages 19 22.)
BASIC OPERATIONS
Turning on the power
Turn on the power.
Select the source.
6
RADIO BASIC OPERATIONS
Listening to the radio
FM1 FM2 FM3
Searching a station automatically: Auto search
Select the band (FM1 3, AM).
Searching a station manually: Manual search
Select the band (FM1 3, AM).
Press and hold or 4 until M (manual) starts flashing on the display .
T une in to a station you want while M is flashing.
When an FM stereo broadcast is hard to receive:
Storing stations in memory
FM station automatic preset: SSM
Tuning in to a preset station
Scanning broadcast stations
10
RDS OPERATIONS
Mode 1 Mode 2 Mode 3
What you can do with RDS
Tracing the same programme automatically (Network-Tracking Reception)
PTY Standby Reception
Using Standby Reception
TA Standby Reception
Selecting your favorite programme for PTY Standby Reception
Searching your favorite programme
To store your favorite programme types
To search your favorite programme type
Other convenient RDS functions and adjustments
Automatic selection of the station when using the number buttons
14
Changing the display mode while listening to an FM station
2
3
Setting the TA volume level
2
PTY codes
16
Listening to a cassette
Insert a cassette into the cassette compartment.
Select the tape direction.
TAPE OPERATIONS
To stop play and eject the cassette
To fast-forward and rewind a tape
17
Prohibiting cassette ejection
Finding the beginning of a tune
Specify how many tunes ahead of or before the current tune the one you want is located.
Notes:
Other convenient tape functions
Skipping the blank portions on the tape
Playing the current tune repeatedly
19
Select the item you want to adjust.
SOUND ADJUSTMENTS
Adjusting the sound
Adjust the level.
VOL
LOUD
Turning on/off the loudness function
Using the sound control memory
Selecting and storing the sound modes
Select the sound mode you want.
BEAT SOFT POP SCM OFF
Recalling the sound modes
When SCM LINK is set to LINK ON, select the source.
Notes:
Storing your own sound adjustments
To reset to the factory settings
Setting the clock
OTHER MAIN FUNCTIONS
Changing the general settings (PSM)
Basic Procedure
24
Adjust the PSM item selected.
Preferred Setting Mode (PSM) items
25
T o select the telephone muting
To select the external component to use
T o cancel Advanced SCM
T o select the changer display (
T o select the level meter
Detaching the control panel
Detaching the control panel
Attaching the control panel
27
Playing CDs
CD CHANGER OPERATIONS
Selecting CD playback modes
To play back tracks at random (Random Play)
To play back tracks repeatedly (Repeat Play)
To go to the next track or the previous tracks
To go to a particular disc directly
EXTERNAL COMPONENT OPERATIONS
Playing an external component
30
What is DAB system?
Tuning in to an ensemble and one of the services
DAB TUNER OPERATIONS
FM/AMDAB
31
Clock time Service name Ensemble name Band/Preset number
Select a service you want to listen to.
To change the display information while tuning in to an ensemble
To tune in to a particular ensemble without searching:
To restore the FM/AM tuner
Start searching an ensemble.
Storing DAB services in memory
Tuning in to a preset DAB service
34
Remedies
Symptoms
Causes
35
Remedies
Causes
Symptoms
To clean the head
MAINTENANCE
Ignition key-off release/Ignition key-on play
CAUTION:
SPECIFICATIONS
AUDIO AMPLIFIER SECTION
TUNER SECTION
CASSETTE DECK SECTION
GENERAL
Page
( )
V
INSTALLATION (IN-DASH MOUNTING)
KS-FX725R/KS-F525
Installation/Connection Manual /
When using the optional stay
ELECTRICAL CONNECTIONS
:
A Typical Connections /
PRECAUTIONS on power supply and speaker connections:
n
B
CD changer and DAB tuner / - - DAB
External component /
