JVC KS-FX722R User manual

SERVICE MANUAL
CASSETTE RECEIVER
No.49591
Jan. 2001
COPYRIGHT 2001 VICTOR COMPANY OF JAPAN, LTD.
KS-FX722R
KS-FX722R
Area Suffix
E ---- Continental Europe
Contents
Safety precaution
Location of main parts
Disassembly method
1-2
1-3
1-4
Adjustment method
Wiring connections
Description of major ICs
1-10
1-14
1-15
MO
TPTP
RDSRDS
PTYPTY
DISPDISP
8 9 10 11 127
DAB

KS-FX722R
1-3
Location of main parts
Control unit Display Control unit
Main unit
Main board
Main board assembly
Power IC
Connector to controller
Tuner
pack
Antenna
jack
RCA jack
Changer control
connector
I/O connector
Cassette mechanism
C.motor assembly Mechanism control board assembly
Cassette housing Head
Head relay board
Mechanism control board assembly
Flywheel assembly Reel board
Capstan motor assembly

KS-FX722R
1-4
Disassembly method
Removal of main parts
(1) Detaching the front panel unit (see Fig.2-1)
Side the Release slide knob in the direction of arrow
to detach the front panel unit.
(2) Removing the front chassis(see Fig.2-2)
Disengage the four tabs in the right and left sides of unit
and pull the front chassis forward to remove it.
(3) Removing the bottom cover(see Fig.2-3.2-4)
1.Remove one screw 2 retaining the IC to the heat sink.
2.Remove two screws 1 to remove the heat sink.
3.Turn the upside down, then insert and turn the
screwdriver to remove the bottom cover and
protect sheet.
(4) Removing the main P.C.B.assembly
(with rear panel) (see Fig.2-5)
1.Remove two screws 4 retaining the rear panel to the chassis.
2.Remove two screws 3 retaining the amp. P.C.B. assembly.
3.Lift up the main P.C.B. assembly to remove it. At this
time, remove the connector CP501 connecting the
main P.C.B assembly and mechanism assembly.
(5)Removing the rear panel(see Fig.2-5)
Remove six screws retaining the jacks or the like.
Remove one screw 5 to the IC bracket.
Remove one screw 6 to remove the line-out jack.
Remove one screw 7 to remove the antenna jack.
Remove one screw 8 to remove the changer
controller jack. (except KS-F530R)
(6)Mechanism assembly(see Fig.2-6)
1.Remove four mechanism mouting screws 9 retaining
the mechanism assembly.
2.Remove four screws B retaining the cover.
3.Remove one screw which is the fixation of TOP COVER and
the substrate.
(7)Front panel unit(see Fig.7)
Remove four screws A retaining
the rear cover.
Enclosuer section
Top side
Detach it
Press the Control Panel
Release button to detach the control panel.
Fig. 2 - 1
Bottom Cover
Main Board
CP501
Connection to the mechanism
connector position
3
3
4
4
5
6
7
8

KS-FX722R
1-10
Adjustment method
Test instruments reqired for adjustment
1. Digital osclloscope(100MHz)
2. Frequency Counter meter
3. Electric voltmeter
4. Wow & flutter meter
5.TestTapes
VT724.......................
...................
for DOLBY level measurement
VT739............For playback frequency measurement
VT712....For wow flutter & tape speed measurement
VT703..................... For head azimuth measurement
6.Torque gauge ....................Cassette type for CTG-N
(mechanism adjustment)
Measuring conditions(Amplifier section)
Power supply voltage.............. DC14.4V (10.5 - 16V)
Loadimpedance ........... 4 (2Speakers connection)
Line out............................................................ 20k
Standard volume position
Balance and Bass,Treble volume .Fader
:Center(Indication"0")
Loudness,Dolby NR,Sound,Cruise:Off
Volume position is about 2V at speaker output with
following conditions.Playback the test tape VT721.
AM mode 999kHz/62dB,INT/400Hz,30%
modulation signal on recieving.
FM mono mode 97.5MHz/66dB,INT/400Hz,22.5kHz
deviation pilot off mono
FM stereo mode 1kHz,67.5kHz dev. pilot7.5kHz dev.
Output level 0dB(1 V,50 /open terminal)
MC-109C for TAPA CURL confirmation
(without Padd type)

KS-FX722R
1-12
EXTKSRT002-18P
Information for using a car audio service jig
1. We're advancing efforts to make our extension cords common for all car audio products.
Please use this type of extension cord as follows.
2. As a U-shape type top cover is employed, this type of extension cord is needed to check operation of the
mechanism assembly after disassembly.
3. Extension cord : EXTKSRT002-18P ( 18 pin extension cord ) For connection between mechanism assembly
and main board assembly.
Check for mechanism driving section such as motor ,etc..
Disassembly method
1. Remove the bottom cover.
2. Remove the front panel assembly.
3. Remove the top cover .
4. Install the front panel.
5. Confirm that current is being carried by connecting
an extension cord jig.
Note
Available to connect to the CP701 connector when in-
stalling the front panel.
Cassette mechanism
Front panel assembly
Main board
Main board
Extension cord
EXTKSRT002-18P
to Main board
to Cassette mechanism

KS-FX722R
1-14
013
1
3
2
Reel motor Sub motor
Mecha control board Reel board
Main board
Control board
Flat cablle
Head relay board
Playback head
0
9
0
9
134
20 9
13
4 209
CN403
CN401
CN402
CP501
CJ701
CP701
Changer connector
Wiring connections
Color codes are shown below.
1
2
3
4
5
6
7
8
9
0
D
C
Brown
Red
Orange
Yellow
Green
Blue
Violet
Gray
White
Black
Pink
Light Blue

KS-FX722R
1-15
Description of major ICs
UPD178018AGC584(IC701) : System controller micon
24 –1
41 –64
25
40
80
65
1.Terminal Layout
2.Description
– –
1 KEY0 I Key input 0
2 KEY1 I Key input 1
3 KEY2 I Key input 2
4 LEVEL I Level meter input
5 SM I Signal meter input
6 SQ I Signal quality input
7 LCDCE O Chip enable output to LCD driver
8 LCDDA O Data output to LCD driver
9 LCDSCK O Clock output to LCD driver
10 BUSI/O O J-BUS I/O switch output
11 UNLOCK O PLL unlock output L:unlock H:lock
12 BUSSI I J-BUS data input
13 BUSSO O J-BUS data output
14 BUSSCK O J-BUS clock output
15 - 20 NC - Non connect
21 GNDPORT - GND for port
22 VDDPORT - VDD for port
23 NC - Non connect
24 AFCK O AF check output L:AF check
25 MONO O Monaural ON/OFF output H:Monaural ON
26 FM/AM O Output for FM power supply H:FM Mode
27 SEEK/STOP O Auto seek/Stop output H:Aut seek L:Stop
28 NC I Non connect
29 IFC I FM middle frequency counter input
30 VDDPLL - VDD for PLL
31 OSC I FM/AM oscillation input
32 NC - Non connect
33 GNDPLL - GND for PLL
34 EO0 O Error out output from change pump
35 EO1 O Error out output from change pump
36 IC - Connect to Ground
37 SD/ST I Seek/Stop port H:SD input
Seek/Stop port L:Stereo input
38 STAGE I H:It is CD mode and there is REPEAT
L:Does not exist
39 NC - Non connect
40 MOTOR O Main motor output H:At rotation
41 FF/REW O MS IC sensitivity switch output L:FF/REW
42 F/R O FWD/REV change input H:FWD L:REV
43 DOLBY O Dolby NR output H:Dolby NR ON
44 MS IN I Between tunes signal input
H:Between tunes
45 I2CSCK I/O E-VOL IC control clock I/O
46 I2CDAO O E-VOL IC control data output
47 I2CDAI I E-VOL IC control data input
48 REEL I Reel rotation detect signal input
49 SUBMO- O Sub motor output -
50 SUBMO+ O Sub motor output +
51 MODE I Mode position detection input H:Non-mode
L:Mode position
52 TAPEIN I Cassette in detect input H:IN L:OUT
53 STBY I Standby detect input H:Eject side
L:Operation side
53 T-END I Tape end detect input 200ms L:tape end
54-59 NC - Non connect
60 MUTE O L:Mute ON H:Mute OFF
61 POWER O Power supply output H:power ON
62 TEL-MUTE I TEL-MUTE input
63, 64 NC - Non connect
65 ENC1 I Encoder signal input
66 ENC2 I Encoder signal input
67 ON I H:Operation mode L:Power save mode
68 STOP I Stop mode input
69 RDSCK I RDS clock input
70 RDSDA I RDS data input
71 REMOCON I Remocon signal input (Not used)
72 DETACH I Detach input It is "L" of 200ms or more and
an operation mode H:power save mode
73 JBUS INT I J-BUS Interruption input
74 REGCPU - Connects GND through the capacitor
of 0.1 F
75 GND - To ground
76 X2 - Crystal oscillator connection for system
77 X1 - clock oscillation
78 REGOSC - Connects GND through the capacitor
of 0.1 F
79 VDD - Power supply
80 NC - Non connect
Pin Symbol I/O Function
No. Pin Symbol I/O Function No.

KS-FX722R
1-16
1.Pin layout
2.Blockdiagram
40 31
11 20
1
10
30
21
PBFB2
PBRIN2
PNGND
PNFIN2
VCT
PBREF
PBFIN1
PBGND
PBRIN1
PBFB1
MSMODE
DRSW
TAPESW
MUTESW
NC
NC
MSOUT
MSTC
G1FB
G2FB
PBTC2 PBOUT2 OUTREF2 TAPEIN2 GND DIREF LINEOUT2 NC NC MSSW
PBTC1
PBOUT1
OUTREF1
TAPEIN1
NC NC
LINEOUT1
NC NC
MSLPF
31
32
33
34
35
36
37
38
39
40
20
19
18
17
16
15
14
13
12
11
1 2 3 4 5 6 7 8 9
10
30 29 28 27 26 25 24 23 22 21
+
-
+
-
+
-
+
-
+
-
7k/12k
7k/12k
300k
70 /12070 /120
100k
100k
24dB
MS MODE
BIAS
MUTE
TAPE EQ
FWD/RVS
LPF DET
24dB
T2
X1
X1
F2
30k
30k
45k
F1
300k T1
F3
Vcc MS ON/
OFF
CXA2559Q(IC401):Playback equalizer amplifier with music sensor

KS-FX722R
1-17
3.Pin function
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Symbol
PBTC1
PBOUT1
OUTREF1
TAPEIN1
Vcc
NC
LINEOUT1
NC
NC
MSLPF
G2FB
GI1FB
MSTC
MSOUT
NC
NC
MUTESW
TAPESW
DRSW
MSMODE
I/O
-
O
O
I
-
-
O
-
-
-
-
-
-
O
-
-
I
I
I
I
Function
Terminal of capacity of reproduction equalizer reproduction
Equalizer output terminal
Output standard terminal
Tape input terminal
Power supply terminal
Non connection
Line-out output terminal
Non connection
Non connection
Detection LPF terminal between tunes
Detection level set terminal between tunes
Detection level set terminal between tunes
Time constant connection terminal for the detection between tunes
Detection output terminal between tunes
Non connection
Non connection
Mute function control terminal
Reproduction equalizer control terminal
Head change control terminal
Detection mode control terminal between tunes
Detection function control terminal between tunes
Non connection
Non connection
Line-out output terminal
Resistance connection terminal for standard current setting
Earth terminal
Tape input terminal
Output standard terminal
Reproduction equalizer output terminal
Terminal of capacity of reproduction equalizer
Reproduction equalizer return terminal
Reproduction equalizer input terminal
Reproduction equalizer system earth terminal
Reproduction equalizer input terminal
Middle point terminal
Reproduction equalizer standard terminal
Reproduction equalizer input terminal
Reproduction equalizer system earth terminal
Reproduction equalizer input terminal
Reproduction equalizer return terminal
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
MSSW
NC
NC
LINEOUT2
DIREF
GND
TAPEIN2
OUTREF2
PBOUT2
PBTC2
PBFB2
PNRIN2
PBGND
PBFIN2
VCT
PBREF
PBFIN1
PBGND
PBRIN1
PBFB1
I
-
-
O
-
-
I
O
O
-
I
I
-
I
O
O
I
-
I
I
CXA2559Q 2/2

KS-FX722R
1-18
HA13158A (IC941) : Power amp
1. Pin layout
2. Block diagram
IN1
IN2
IN3
IN4
STBY
2
1
11
13
23
10
TAB
PROTECTOR (ASO
SURGE, TSD)
INPUTBUFFER1
INPUTBUFFER2
INPUTBUFFER3
INPUTBUFFER4
AMP1
AMP2
AMP3
AMP4
MUTE
PVCC1PVCC2
INVCC +
-
+
-
+
-
+
-
12 22
14 18 6
3
4
5
7
8
9
15
16
17
19
20
21
1 ~ 23

KS-FX722R
1-22
LC75823E (IC651) : LCD Driver
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S12
S13
S14
S15
S16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
S48
S47
S46
S45
S44
S43
S42
S41
S40
S39
S38
S37
S36
S35
S34
S33
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
S17 S18 S19 S20 S21 S22 S23 S24 S25 S26 S27 S28 S29 S30 S31 S32
DI CL CE OSC Vss VDD2 VDD1 INH VDD COM3 COM2 COM1 S52 S51 S50 S49
1. Pin Layout & Symbol
2. Pin Function
Pin No.
1 to 52
53 to 55
56
57
58
59
60
61
62
63
64
I/O
O
O
--
I
I
I
--
I/O
I
Segment output pins used to display data transferred
by serial data input.
Common driver output pins. The frame frequency is given
by : t0=(fosc/384)Hz.
Power supply connection. Provide a voltage of between
4.5 and 6.0V.
Display turning off input pin.
INT="L" (Vss) ----- off (S1 to S52, COM1 to COM3="L"
INT="H" (VDD)----- on
Serial data can be transferred in display off mode.
Used for applying the LCD drive 2/3 bias voltage
externally.
Must be connected to VDD2 when a 1/2 bias drive scheme
is used.
Used for applying the LCD drive 1/3 bias voltage
externally.
Must be connected to VDD1 when a 1/2 bias drive scheme
is used.
Power supply connection. Connect to GND.
Oscillator connection.
An oscillator circuit is formed by connecting an external
resistor and capacitor at this pin.
Serial data CE : Chip enable
interface connection
to the controller. CL : Sync clock
DI :Transfer data
Symbol
S1 to S52
COM1 to COM3
VDD
INH
VDDD1
VDD2
Vss
OSC
CE
CL
DI
Function

ABC
1
2
3 4
5
KS-FX722R
2-1
Block diagram
IC751
CHANGER CONTROL
HD74HC126FP-X
HEAD
IC401
PB EQ
CXA2559Q
IC941
POWER AMP.
HA13158A
IC911
E.VOLUME
TEA6320T-X
IC701
SYSTEM CONTROL MICON
UPD178018AGC584
TU1
AM/FM TUNER PACK
QAU0156-001
SUB
MOTOR
IC402
DC MOTOR DRIVER
LB1641
LCD1
QLD0158-001
IC651
LCD DRIVER
LC75823E
KEY
S601 – S619
MAIN
MOTOR
SWITCH
TAPE END.STANDBY
SEEK/STOP
SD/ST
SMETER
JBUS SI
JBUS SO
JBUS I/O
JBUS SCK
SCK
SI/SO
CD RCH
CD LCH
TUNER L/R
OUT LR
OUT RR
OUT LF
OUT RF
L/R F
L/R R LRO
RRO
CP501
J751 CP961 J931
KEY 0 – 2
CJ701
S3 – S52
COM0 – COM3
CP701
TAPE L/R
F/R
MODE
STANDBY
FF/REW
MOTOR
SUBMO
TAPE IN
DOLBY
MS
REEL
SUBMO+
SUBMO-
LCH
RCH METAL
DOLBY
CE
CLOCK
DATA
F/R
MS OUT
LCH
RCH
FF/REW
MOTOR
TAPE IN
MODE
STANDBY
REEL
PHOTO
CJ401
CJ403 CJ402
J1
AM
FM
TO CD CHANGER TO SPEAKER
CONNECTOR TO REAR LINE OUT
Tuner.Power AMP.Changer/System Controller LCD DRIVER/KEY SWITCH CIRCUT
MECHANISM CONTROL

ABCD E F G
1
2
3
4
5
2-3
KS-FX722R
Note:KS-FX722R series. FSDH3170-005BW 1/3
/tr/s/jes/3170ma.001
FM Radio signal / Radio main signal
AM Radio signal
CD signal
Tape PB / Main signal
Receiver & System control section
Standard schematic diagrams
CP501
C705
R732
CJ701
IC911
TU1
D243
IC751
R26
IC761
Q750
R27
R750
C970
J1
L1
Q6
R9
R8 R7
C20
R10
C969
C712
Q11
C711
C305
R14
C7
C6
Q10
Q7
C707
R982
Q13
C151
Q3
R983
R981
R960
Q241
C709
C21
Q962
R979
R308
R741
C253
C251 R251
R151
D982
Q151
C767
C762
C765
C764
C1
C763
R24
Q979
C153
C219
IC941
R748
Q303
R113
R213
R116
Q966
Q301 Q302
Q967
IC701
R707
R749
C968
Q965
J751
R704
R703
R702
R701
D932
R758
R757
R756 R755
R754
R715
R716
R717
X701
C701
C702
R711
Q1
R713
R712
C703
R724
R725
R726
R718
R719
R720
C704
C245
Q232
R216
Q231
D242
R115
R215
C30
CP961
R709
R710
R708
Q132
R740
R978
R233
R737
R738
R739
R736
R133
L701
R746
D244
D931
D933
R306
D983
D981
C304
C302
C766
R974
D977 Q978
R969
R970
D966
Q251
C9
C218
C118
C119
C961
C708
Q12
Q131
Q5
Q951
D963
J931
R706
R141
R142
R241
R242
D961
R961
R232
R132
R135
R235
R25
C945
C944
L961
C978
C25
D1 D2
C963
R773 Q2
R4
R5
D5
D979
Q952
R12 R29
D3
C932
D891
C912
R980
C112
R152 C152 C252 R252
R253
R153
C761
X761
R761
R763 R762
R3
Q4
C246
C115
C213
C911
C913
C964 C966
C214 C215
C216 C116
C114
C217
C113
C212
R911
R912
R913
R112
R212
R941
R30
C967
C943
D965
C713
R759
R753R752
C751
D951
R234
R721 R722 R723 R727
R134
R245
R246
R32
R977
C117
C942
D241
R247
C247
C29
R705
C111
C211
R231
R131
C24
C979
R117R217
C933
D4
D892
R305
R302
R307
R303
R301 C154
C254
R34
R304
C301
C303
R734 R733
R975
C901
R743
C18
C977
C962
C965
R144 R143
R243 R244
C144 C143
C243 C244
R963 R962
C941
R136 R236
D978
C17
Q891
C891
R891 R892
QGB1214J1-18S
0.001
47K
VMC0334-001
TEA6320T-X
QAU0222-001
1SS355-X
HD74HC126FP-X
10k
SAA6579T-X
2SC2412K/R/-X
1k
24K
0.047
QNB0100-001
4.7u
0K
2SA1037AK/RS/-X
1k
4.7k 47k
0.001
3.9k
0.047
0.1
2SC2412K/R/-X
0.22
0.47/50
33
0.012
0.056
2SC3661-X
2SC3661-X
0.1
10K
DTC114EKA-X
1/50
2SC2412K/R/-X
10K
1k
100
2SC2412K/R/-X
100/6.3
2.2/50
2SB1322/RS/-T
10k
47K
47k
1/501/50 10K
10K
1SS355-X
2SC2412K/R/-X
0.01
560P
47p
82p
0.1/50
2.2/50
1k
DTA114EKA-X
1/50
1/50
HA13158A
47K
DTC114EKA-X
2.2k
2.2k
1K
DTC114EKA-X
2SD601A/R/-X
2SD601A/R/-X
2SA1037AK/RS/-X
UPD17801BAGC584IC
47K
10K
10/16
DTC114EKA-X
QNZ0095-001
270
270
270
270
MA152WA-X
100
100k
100k
10k
100
10k
10k
10k
QAX0406-001Z
27P
27P
390
DTC114EKA-X
10k
10k
0.1
4.7k
4.7k
4.7k
4.7k
4.7k
4.7k
0.1
0.1
2SC2412K/R/-X
1K
2SC2412K/R/-X
1SS119-041
330k
330k
47p
QNZ0112-001
100k
2.7K
100k
2SC2412K/R/-X
47k
6.8k
100
47k
47k
47k
47k
100
47u
47K
1SS355-X
1SS355-X
1SS355-X
470
1SS355-X
1SS355-X
0.1
0.01
47/16
12K
1SS355-X DTC114EKA-X
2.2K
47K
CRS03-W
2SC2412K/R/-X
100/16
1/50
1/50
1/50
2200/16
220/10
2SC2412K/R/-X 2SC2412K/R/-X
2SA1037AK/RS/-X
DTA114EKA-X
1SS119-041
QNN0175-001
47K
15k
15k
15K
15K
1N5401-TU-15
100
2.2k
2.2k
100
100
1k
10/16
0.1
QQR0703-001
10/10
0.1
1SS119-041 1SS119-041
0.1/50
47k DTC114EKA-X
47k
3.3k
1SS119-041
1SS355-X
DTA114EKA-X
1k
1.5k
1SS355-X
0.1
1SS355-X
100/16
18k
1/50
22k
0.0012
0.0012
22k
4.7k
4.7k
0.022
QAX0263-001Z
2.2k
2.2k
2.2k
4.7k
DTA114EKA-X
47/10
0.22/50
0.0082
47/16
100/16
2200/6.3 100/16
0.15 0.22/50
0.033 0.033
0.15
0.0056
0.0082
1/50
270
270
10
22k22k
47k
12
1/50
0.1
CRS01-W
0K
120P
330k
22k
330k
0.1
1SS133-T2
1K
4.7k 4.7k 4.7k 4.7k
1K
12k
15k
0
470
0.0056
0.1
1SS119-041
39K
0.1
10p
10k
2.2/50
2.2/50
2.2K
2.2K
0.047
10/16
10k10k
0.1
1SS355-X
1SS355-X
15K
47K
10K
10K
47K 0.015
0.015
22K
2.2K
330p
0.0047
4.7k 4.7k
24K
2.2
10K
0.22/50
100/6.3
10/16
220/10
39k 39k
39k 39k
470p 470p
470p 470p
4.7K
10K
0.1
1k 1k
MTZJ4.7C-T2
150P
UN2211
0.1
47K 1K
KEY2
KEY1
F/R
CH.L
LCDCK
CH.R
KEY1
MS
REEL
TAPEIN
MODE
SUBMO+
SUBMO-
TAPE.R
TAPE.L
LCDDA
KEY0
CH.R
LCDCE
LCDDA
LCDCE
JBUSI/O
JBUSSI
JBUSSCK
CH.L
JBUSSO
DOLBY
FF/REW
LCDCK
MOTOR
KEY0
STANDBY
TAPE.L
KEY2
TAPE.R
REEL
MOTOR
JBUSSI JBUSI/O JBUSSCK JBUSSO
FF/REW
F/R
DOLBY
MS
SUBMO- SUBMO+ MODE TAPEIN STANDBY
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.

HABC DEFG
1
2
3
4
5
KS-FX722RKS-FX722R
2-4
Tape PB / Main signal
C410
C409
C411
R416
C422
Q401
Q402
Q403
CJ403
CJ402
IC402
C425
C424
CJ401
R401
R418
IC401
C416
C413
C415
C412
D401
VR401
R408
C414
R409
C419
C418
R410
R414
C406
C421 R415
R406 R407
R405 C404 R404 C403 C402
R411
VR402
R413
C407
C417
R422
R423
D402
R403
R425
C423
R424
R412
R417
R402 C401
C405 C408
R420
0.015
22/16
0.015
910K
0.1
DTC114EKA-X
2SB1322/RS/-T
QGF1219F1-11
LB1641
0.01
0.1
QGB1214K1-18S
390
15K
0.1
0.1
0.01
0.1
MA3047/H/-X
33K
12K
22/16
24K
0.47/50
220P
24K
3.9K
100P
0.01 22K
180 180
100K
100P
100K
100P 100P
12K
33K
18K
100P
0.1
DTC114EKA-X
3.3K
47K
DSK10C-T1
100K
33
10/16
3.3K
100
10K
100K
100P
100P 100P
3.3K
Note:KS-FX722R series FSDH3170-005MW 3/3
/te/s/jes/3170me.001
Mecha control circuit section

ABCD E F G
1
2
3
4
5
2-5
KS-FX722R
R652
IC651
C653
C651
C652
D655 D654
R602
D653
R651
S601 S603 S602
S612
S611
S608
R609
S619
S609 S610
S615 S616 S617 S618
S614
R603
IC652
R607 R608
R613 R614 R615
S607
LCD1
R606
CP701
D652
S606
D601
S604
R601
S620
S613
S605
R604 R605
R610 R612R611
R616 R617
R631 R663
JS601
R653
R637
D657
D627 D602
D623
R640
D604
D609
D614D615
D611
D610
D616
D617
D621
D606
D625
D605
D608
D612
R633
C654
R658
PL603
R657
R635
D620
D619
D622
R639
R638
D626
D607
R636
R641
D603
R634
R656 R655 R654
PL601
D618
47k
LC75823E
680p
0.01
4.7/6.3
MA152WK-TX
MA152WK-TX
820
MA152WA-TX
1.5k
POWER 1/7 TP/RDS
MO/RND
RPT
SELECT
1.2K
TAPE
DISP PTY
6/12 SCM CD-CH AM/FM
1.2K
RPM6938-SV4
560 820
560 820 1.2K
5/11
QLDO158-001
3.9K
VMC0335-001
MA152WA-TX
4/10
2/8
560
EJECT
3/9
1.8K 2.7K
1.8K 3.9K2.7K
1.8K 2.7K
820
100
QSW0793-001
180K
270
MA3062
820
390
4.7/6.3
470
QLL0033-003
10K
680
470
270
270
820
1k 10K
10K 10K
QLL0033-003
OSC
CE
INH
DATA
CLOCK
S32
S31
S30
S29
S28
S27
S26
S25
S24
S23
S22
S21
S20
S19
S18
S17
COM3
COM2
COM1
S52
S51
S50
S49
KEY1
R5V
CE
CLOCK
DATA
KEY0
REMOCON
LED10V
S16 S15
KEY2
LAMP10V
S14 S13 S12 S11 S10 S9 S8 S7 S6 S5 S4
S48 S47 S46 S45 S44 S43 S42 S41 S40 S39 S38 S37 S36 S35 S34 S33
S3 S4 S5 S6 S7 S8 S9
S10 S11 S12 S13 S14 S15 S16 S17 S18 S19 S20 S21 S22 S23 S24 S25 S26 S27 S28 S29 S30 S31 S32 S33 S34 S35 S36 S37 S38 S39 S40 S41 S42 S43 S44 S45 S46 S47 S48 S49 S50 S51 S52
COM1 COM2 COM3
S3
ENC1 ENC2
5V
GND
Note:KS-FX722R series FSDH3170-005SW 2/3
/tr/s/jes/3170sw.001
LCD driver & Operation switch section

HABC DEFG
1
2
3
4
5
KS-FX722RKS-FX722R
2-6
Note:KS-FX722R /tr/p/jes/10003/10003mo
C1
C6
C7
C9
C17
C18
C20
C21
C24
C25
C111
C112
C113
C114
C115
C116
C117
C118
C119
C143
C144
C151
C152
C153
C211
C212
C213
C214
C215
C216
C217
C218
C219
C243
C244
C251
C252
C253
C245
C246
C247
C701
C702
C703
C704
C751
C761
C762
C763
C764
C765
C766
C767
C911
C912
C913
C933
C941
C942
C943
C944
C945
C961
C962
C963
C964
C966
C969
C970
C977
R983
D1 D2
D5
D6
D241
D242
D932
D951
D961
D963
Q750
D978
B812
IC751
IC761
IC911
B811
L1
L701
Q1
Q2 Q3
Q4
Q5
Q6
Q7
Q10
Q11
Q12
Q132
Q151
Q232
Q251
Q241
Q951
Q979
R3
R4
R5 R7
R8
R9
R10
R12
R14
R24
R25
R26
R27
R29
R30
R112
R113
R115
R131
R133
R134
R141
R142
R143
R144
R151
R152
R153
R212
R213
R215
R231
R233
R234
R241
R242
R243
R244
R251
R252
R253
R245
R246
R247
R701
R702
R703
R704
R705
R706
R708
R709
R710
R711
R712
R713
R743
R715
R716
R717
R718
R719
R720
R721
R722
R723
R724
R725
R726
R727
R732
R733
R734
R736
R737
R738
R739
R740
R746
R747
R748
R751
R752
R753
R754
R755
R756
R757
R758
R759
R761
R762
R763
R911
R912
R913
R941
R962
R974
R975
X701
X761
Q965
R978
R977
C979
C978
R116
R982
C967
B808
R707
Q952
Q231
Q131
B813
R232
R132
R235
R135
C932
R236
R136
B701
R741
C965
R750
Q978
B775
C901
R117
R216
R217
C980
C707
C708
R749
C709
Q13
R771
B773
R773
R32
R981
R979
D738
D741
C28
C29
C30
C2
L2
R34
R969
B779
Q891
B742
B703
B741
B702
B708
B772
B774
R961
B749
B712
B711
B743
B751
B717
B716
B770
B723
B727
R960
B722
B706
B771
B707
B740
B744
B746
B745
C705
B728
C968
C31
Q967
B766
B714
B713
R308
B721
B719
B754
Q303
B776
B755
B777
D742
B758
C713
C254
C154
D965
D892
C710
R301
R303
R305
R302
R304
R307
R306
Q301
Q302 C304
C303
C302
C301
C305
B757
B704
B756
C711
B747
Q962
Q966
B750
D966
C712
B778
R892 C891
R891
B726
C902
IC961
R41
R42
R43
R799
B809
R970
R980
B807
R963
B803
B804
D891
D933
D4
D977
D982
D244
D3
D931
D243
D981
D979
D983
1
80
20
21
40
61
1
1
5
10
1
1
[REMOCON]
11
17
S701
13
15
14
11
Rch
Lch
E
15
B
TESTPOINTS
910
1234
567812
60
14
18
T1B
Note:KS-FX722R /tr/p/jes/10011/10011mo
C653
C671
D601 D602
D603
D604
D605
D606
D607
D608
D609
D610
D611
D612
D614 D615 D616
D617
D618 D619
D620
D621
D622
D623
D625
D626
D627
IC652
LCD1
R603 R604 R605 R606
R607
R608
R609
R610
R611
R612
R613
R614
R615
R616
R617
R631
R633
R634
R637
R639
R651
R652
R658
R663
S601
S602
S603 S604 S605 S606 S607
S608
S609
S610
S611 S612
S613
S614
S615 S616 S617
S618
S619
S620
S1A
(Foward side)
C651
C652
C654
CP701
D652
D653
D654 D655
D657
IC652
PL601
PL603
R601
R602
R635
R636
R638
R653
R654
R655 R656
R657
R640
R641
17
115
32
33
48
49
64 1
16
GEB10011A
T1A
(Reverse side)
Printed circuit boards
Main board Switch board

ABC
1
2
3
4
5
KS-FX722R
2-7
CA-IN
Main:-
Main:+
Sub:-
Sub:+
CrO2ST-BY
3
MODE MJ
CA-IN
Main+ Sub+
MODE
Pho- Tr
CrO2
Main
Sub
St.BY
D.Gnd
Anode
Mecah control board
Reel board

KS-FX722R
3-2
Exploded view of general assembly and parts list
Block No. MM
M
1
A
B
a
C
7
3
11
11
2
6
5
9
4
11
11
6
6
15
6
10
17
14
20
46
14
12
12 49
8
21
48
47
52
13
13
50
50
51
16
18 19
39
35
32
33
26
22
23
30
24
27
28 31
36
37
25
34
39
39
1
41 43
4044
42
39
45
38
29
Front board
Mecha control board
Main board
1-1
LCD1
1-2
1-3

KS-FX722R
3-3
Item Parts number Parts name Area
A
Parts list (General assembly)
Q'ty Description
Block No.
M1MM
1 ZCKSFX250J-FB FRONT ASS'Y 1
1-1 FSJC1052-002 FRONT CHASSIS 1
1-2 FSJC3014-003 CASSETTE LID 1CH-CONTROL
1-3 VKW4947-002 DOOR SPRING 1
2 FSYH4036-050 SHEET 1
3 FSKL2001-002 MECHA BRACKET
(
L
)
1LEFT BRACKET
4 FSKL2002-001 MECHA BRACKET
(
R
)
1RIGHT BRACKET
5 QYSDST2606Z SCREW 1PCB+MECHA
6 QYSDST2606Z SCREW 4MECHA+M.BRACKET
7 FSJC1056-002 TOP CHASSIS 1
8 FSMH3001-002 SIDE PANEL 1
9 FSKM3011-002 BOTTOM COVER 1
10 FSMA3004-003 INSULATOR 1
11 QYSDST2604Z SCREW 4CHASSIS+MECHA BKT
12 FSKZ4005-001 SCREW 3
13 QYSDST2604Z SCREW 2CHASSIS+REAR BKT
14 QYSDST2606Z SCREW 2CHASSIS+MAIN PWB
15 --------------- CASSETTE MECHA 1CDS-801
16 FSKS3010-001 LOCK LEVER 1
17 FSKW4005-003 TORSION SPRING 1
18 FSXP3026-002 RLS KNOB 1
19 FSKW3002-004 COMP.SPRING 1
20 FSYH4036-069 SHEET 2PRESET BUTTON
21 FSKL4018-00B IC BRACKET 1
22 GE10001-001A FRONT PANLL 1
23 GE30101-005A FINDER ASSY 1
24 FSJK3014-001 LIGHT LENS 1
25 GE20104-001B PRESET BUTTON 11-6
26 GE30105-002A POWER BUTTON 1
27 GE30109-002A EJECT BUTTON 1
28 GE20110-001C D.FUNC BUTTON 1TAPE/TUNER/CD-CH
29 GE30106-001A SND FUNC BUTTON 1
30 GE20103-001A PUSH BUTTON
(
3
)
1
31 GE20109-001C UP/DOWN BUTTON 1
32 GE30103-001B KNOB 1JOG DIAL
33 GE30102-002A SEL BUTTON 1
34 FSYH4036-032 SHEET 1FOR SEL BUTTON
35 GE30104-001A RIM LENS 1
36 FSXP3055-001 DETACH BUTTON 1
37 FSKW3002-012 COMP. SPRING 1FOR DETACH BUTTON
38 GE10002-001A REAR COVER 1
39 VKZ4777-001 MINI SCREW 4F.PANEL+REAR COVER
40 QNZ0440-001 RUBBER CONNECTOR 1
41 FSJK3033-001 LCD LENS 1
42 GE30110-001A LCD CASE 1
43 FSKS3020-002 LENS CASE 1
44 FSYH4075-002 SHEET 1
45 GE30140-002A NAME PLATE 1

KS-FX722R
3-4
Item Parts number Parts name Area
A
Parts list (General assembly)
Q'ty Description
Block No. M1MM
46 VMA4652-001SS EARTH PLATE 1
47 GE40103-001A REG BRACKET 1
48 GE40104-002B HEAT SINK 1
49 FSKM3012-011 REAR BRACKET 1WITH 10A LABEL
50 QYSDST2606Z SCREW 3
51 QYSDSF3006Z SCREW 1PIN
52 QMFZ047-100-T FUSE
A
1
LCD 1 QLD0158-001 LCD 1