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Table of contents
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Jvc KD-S723-R, KD-S721-R Service Manual

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Page 1

KD-S723R/KD-S721R

SERVICE MANUAL
CD RECEIVER
KD-S723R/KD-S721R
KD-S723R
TP/PTY
SEL
DISP
87 9
10 11
KD-S721R
TP/PTY
SEL
DISP
87 9
10 11
Difference point KD-S723R LCD Color,Button Illumination--- Amber KD-S721R LCD Color,Button Illumonation--- Green
Contents
FM
¢
CD
4
RNDRPTMO
12
RNDRPTMO
12
AM
SCMMODE
COMPACT
DIGITAL AUDIO
FM
¢
CD
4
AM
SCMMODE
Area Suffix
Safety precaution Preventing static electricity Important for laser products Location of main parts Disassembly method
COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD.
1-2 1-3 1-4 1-5 1-6
Adjustment method Flow of functional operation unit TOC read Maintenance of laser pickup Replacement of laser pickup Description of major ICs
1-11 1-12
1-14 1-14 1-15
No.49693
Feb. 2002
Page 2
KD-S723R/KD-S721R

Safety precaution

!
!
Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of preforming repair of this system.
Please use enough caution not to see the beam directly or touch it in case of an adjustment or operation check.
1-2
Page 3
KD-S723R/KD-S721R

Preventing static electricity

Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destroy the laser diode in the traverse unit (optical pickup). Take care to prevent this when performing repairs.
1.1. Grounding to prevent damage by static electricity
Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as DVD players. Be careful to use proper grounding in the area where repairs are being performed.
1.1.1. Ground the workbench
1. Ground the workbench by laying conductive material (such as a conductive sheet) or an iron plate over it before placing the traverse unit (optical pickup) on it.
1.1.2. Ground yourself
1. Use an anti-static wrist strap to release any static electricity built up in your body.
(caption) Anti-static wrist strap
Conductive material (conductive sheet) or iron plate
1.1.3. Handling the optical pickup
1. In order to maintain quality during transport and before installation, both sides of the laser diode on the replacement optical pickup are shorted. After replacement, return the shorted parts to their original condition. (Refer to the text.)
2. Do not use a tester to check the condition of the laser diode in the optical pickup. The tester's internal power source can easily destroy the laser diode.
1.2. Handling the traverse unit (optical pickup)
1. Do not subject the traverse unit (optical pickup) to strong shocks, as it is a sensitive, complex unit.
2. Cut off the shorted part of the flexible cable using nippers, etc. after replacing the optical pickup. For specific details, refer to the replacement procedure in the text. Remove the anti-static pin when replacing the traverse unit. Be careful not to take too long a time when attaching it to the connector.
3. Handle the flexible cable carefully as it may break when subjected to strong force.
4. It is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it
Short circuit land
FD screw
Feed motor ass’y
Shorting
FD gear
Pickup unit
1-3
Page 4
KD-S723R/KD-S721R

Important for laser products

1.CLASS 1 LASER PRODUCT
2.DANGER : Invisible laser radiation when open and inter
lock failed or defeated. Avoid direct exposure to beam.
3.CAUTION : There are no serviceable parts inside the Laser Unit. Do not disassemble the Laser Unit. Replace the complete Laser Unit if it malfunctions.
4.CAUTION : The compact disc player uses invisible laserradiation and is equipped with safety switches whichprevent emission of radiation when the drawer is open and the safety interlocks have failed or are de feated. It is dangerous to defeat the safety switches.
VARNING : Osynlig laserstrålning är denna del är öppnad
och spårren är urkopplad. Betrakta ej strålen.
VARO : Avattaessa ja suojalukitus ohitettaessa olet
alttiina näkymättömälle lasersäteilylle.Älä katso säteeseen.
5.CAUTION : If safety switches malfunction, the laser is able to function.
6.CAUTION : Use of controls, adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.
CAUTION
!
Please use enough caution not to see the beam directly or touch it in case of an adjustment or operation check.
ADVARSEL : Usynlig laserstråling ved åbning , når
sikkerhedsafbrydere er ude af funktion. Undgå udsættelse for stråling.
ADVARSEL : Usynlig laserstråling ved åpning,når
sikkerhetsbryteren er avslott. unngå utsettelse for stråling.
REPRODUCTION AND POSITION OF LABELS
WARNING LABEL
CLASS 1 LASER PRODUCT
DANGER : Invisibie laser radiation when open and interlock or defeated. AVOID DIRECT EXPOSURE TO BEAM (e)
ADVARSEL :Usynlig laser­stråling ved åbning , når sikkerhedsafbrydere er ude af funktion. Undgå udsæt telse for stråling. (f)
VARNING : Osynlig laser­strålning är denna del är öppnad och spårren är urkopplad. Betrakta ej strålen. (s)
VARO : Avattaessa ja suo­jalukitus ohitettaessa olet alttiina näkymättömälle lasersäteilylle.Älä katso säteeseen. (d)
1-4
Page 5

Location of main parts

Control unit
Display
Main unit
KD-S723R/KD-S721R
LED & key control board
Main board
CD mechanism
Power IC
Mechanism relay board
ISO connector
Main board
Loading motor
Antenna jack
Tuner
pack
Connector to controller
Damper
Pickup unit
Spindle motor
Feed motor
Damper
1-5
Page 6
KD-S723R/KD-S721R

Disassembly method

Removing the front panel unit
(See Fig.1)
1. Press the release button and remove the front panel unit in the direction of the arrow.
Fig.1
Removing the front chassis (See Fig.2)
1. Insert a screwdriver to the joints a on the side of the front chassis and two joints b on the right side, then detach the front chassis toward the front side.
Removing the heat sink (See Fig.3)
1. Remove the three screws A attaching the heat sink on the left side of the body, and remove the heat sink.
A
a
a
Front chassis
Fig.2
A
Fig. 3
b
b
A
Heat sink
Removing the bottom cover (See Fig.4)
1.2.Turn the body upside down. Insert a screwdriver to the two joints c and two
joints d on both sides of the body and the joint e on the back of the body, then detach the bottom cover from the body.
1-6
Bottom cover
c
d
e
Fig. 4
Page 7
KD-S723R/KD-S721R
Removing the main amplifier board
(See Fig.5 and 6)
1.
Remove the front chassis.
2.
Remove the bottom cover.
3.
Remove the two screws B attaching the main amplifier board assembly on the bottom of the body.
4.
Remove the three screws C attaching the main amplifier board assembly on the back of the body.
5.
Disconnect connector CN501 on the main amplifier board assembly from the CD mechanism assembly.
Main amplifier board
B
C
CN501
B
Fig.5
C
C
Fig. 6
Removing the CD mechanism assembly
(See Fig.7)
1.
Remove the front chassis.
2.
Remove the bottom cover.
3.
Remove the main amplifier board assembly.
4.
Remove the three screws D attaching the CD mechanism assembly from the top cover.
Removing the control switch board
(See Fig.8 and 9)
1.
Remove the front chassis.
2.
Remove the four screws E attaching the rear cover on the back of the front panel unit.
3.
Remove the control switch board from the front panel unit.
CD mechanism assembly
Top cover
D
E
E
D
Fig. 7
E
Fig. 8
Control switch board
D
E
Fig. 9
1-7
Page 8
KD-S723R/KD-S721R
<CD mechanism section>
Removing the CD mechanism control board (See Fig.1 and 2)
1.
Unsolder the part a and b on the CD mechanism control board.
2.
Remove the stator fixing the CD mechanism control board and the damper bracket (To remove the stator smoothly, pick up the center part).
3.
Remove the screw A attaching the CD mechanism control board.
4.
Remove the CD mechanism control board in the direction of the arrow while releasing it from the two damper bracket slots d and the front bracket slot e.
5.
Disconnect the flexible wire from connector on the pickup unit.
ATTENTION:
Turn the FD gear in the direction of the arrow to move the entire pickup unit to the appropriate position where the flexible wire of the CD mechanism unit can be disconnected easily.
(Refer to Fig.2)
CD mechanism assembly
D
h
Front bracket
Pickup unit
Damper bracket
D
A
Fig.1
e
b
Flexible wire
a
h
c
D
d
CD mechanism control board
Shift the lock
Removing the loading motor
(See Fig.3 to 5)
Prior to performing the following procedure, remove the CD mechanism control board.
1.
Remove the two springs f attaching the CD mechanism assembly and the front bracket.
2.
Remove the two screws B and the front bracket while pulling the flame outward.
3.
Remove the belt and the screw C from the loading motor.
Loading motor
C
FD gear
f
B
Loading motor
Pull outward
Fig.2
CD mechanism control board
f
B
Front bracket
Fig.3
Front bracket
Pull outward
1-8
Fig.5
Belt
Flame
Fig.4
Page 9
KD-S723R/KD-S721R
Removing the CD mechanism assembly
(See Fig.1, 6 to 9)
Prior to performing the following procedure, remove the CD mechanism control board and the front bracket (loading motor).
1.
Remove the three screws D and the damper bracket.
2.
Raise the both sides fix arms and move the fix plates in the direction of the arrow to place the four shafts g as shown in Fig.8 and 9.
3.
Remove the CD mechanism assembly and the two springs h attaching the flame.
4.
Remove the two screws E and both sides rear damper brackets from the dampers. Detach the CD mechanism assembly from the left side to the right side.
ATTENTION:
The CD mechanism assembly can be removed if only the rear damper bracket on the left side is removed.
CD mechanism
h
Front bracket
CD mechanism
D
Flame
assembly
D
assembly
h
D
Damper bracket
D
A
Fig.5
e
b
Damper bracket
D
Fig.6
a
h
c
D
d
CD mechanism control board
h
Fix plate (L)
g
Fix arm (R)
D
Fig.7
Rear damper bracket
g
Fig.8
Rear damper bracket
E
Fix plate(R)
E
Fix arm (L)
Damper
Damper
g
g
Fig.9
1-9
Page 10
KD-S723R/KD-S721R
Removing the feed motor assembly
(See Fig.10)
Prior to performing the following procedure, remove the CD mechanism control board, the front bracket (loading motor) and the CD mechanism assembly.
1.
Remove the two screws F and the feed motor assembly.
Removing the pickup unit
(See Fig.10 and 11)
Prior to performing the following procedure, remove the CD mechanism control board, the front bracket (loading motor), the CD mechanism assembly and the feed motor assembly.
1.
Detach the FD gear part of the pickup unit upward. Then remove the pickup unit while pulling out the part i of the FD screw.
Feed motor assembly
F
FD gear
Nut push spring plate
FD screw
Pickup unit
Fig.10
Part i
Part j
Pickup unit
G
Pickup mount nut
Pickup unit
ATTENTION:
2.
Remove the screw G attaching the nut push spring plate and the pickup mount nut from the pickup unit. Pull out the FD screw.
When reattaching the pickup unit, reattach the part j of the pickup unit, then the part i of the FD screw.
Removing the spindle motor
(See Fig.12 and 13)
Prior to performing the following procedure, remove the CD mechanism control board, the front bracket (loading motor), the CD mechanism assembly and the feed motor assembly.
1.
Turn up the CD mechanism assembly and remove the two springs k on both sides of the clamper arms. Open the clamper arm upward.
2.
Turn the turn table, and remove the two screws H and the spindle motor.
k
FD screw
Spindle motor
Fig.11
k
Fig.12
H
1-10
H
Fig.13
Page 11

Adjustment method

KD-S723R/KD-S721R
Test instruments required for adjustment
1. Digital oscilloscope (100MHz)
2. AM Standard signal generator
3. FM Standard signal generator
4. Stereo modulator
5. Electric voltmeter
6. Digital tester
7. Tracking offset meter
8. Test Disc JVC :CTS-1000
9. Extension cable for check EXTGS004-26P 1
Standard measuring conditions Power supply voltage DC14.4V(10.5~16V) Load impedance 4 (4 to 8 allowance) Output Level Line out 2.0V / 20 k (Vol. MAX)
How to connect the extension cable for adjusting
Standard volume position Balance and Bass &Treble volume : lndication"0" Loudness : OFF BBE : OFF Frequency Band FM 87.5MHz ~ 108.0MHz MW 522kHz ~ 1620 kHz LW 144kHz ~ 279kHz
Dummy load Exclusive dummy load should be used for AM,and FM. For FM dummy load,there is a loss of 6dB between SSG output and antenna input.The loss of 6dB need not be considered since direct reading of figures are applied in this working standard.
EXTGS004-26P
1-11
Page 12
KD-S723R/KD-S721R

Flow of functional operation until TOC read

Power ON
• When the pickup correctly moves to the inner area of the disc
Set Function to CD
• When the laser diode correctly emits
Microprocessor
commands
FMO TC9462 "53"
FEED MOTOR +TERMINAL
TERMINAL
IC501 "10" REST SW
• When correctly focused
FEO
Focus Servo Loop ON
Disc inserted
Pickup feed to the inner area
Laser emitted
Focus search
Disc rotates
RF signal eye-pattern remains closed
Tracking loop closed
RF signal eye-pattern opens
TOC readout
YES
YES
Microprocessor
commands
1
"No disc"
display
• When the disc correctly rotates
Microprocessor commands
Spindle motor (-) IC501 "7"
AccelerationAcceleration
0.5 Sec
Rough
Servo
0.5 Sec
Servo CLV
1-12
Jump to the first track
Play
Tracking Servo Loop ON
• RF signal
Rough Servo Mode
CLV Servo Mode (ProgramArea)
CLV Servo Mode (Lead-In Area; Digital: 0)
Page 13
Feed Section
Is the voltage output at
IC541 pin "53" 5V or 0V?
YES
Is 4V present at both
sides of the feed motor?
YES
NO
Is the wiring for IC541
(90) ~ (100) correct?
NO
Is 6V or 2V present at
IC501 "10" and "11"?
NO
YES
YES
Is 5V present at IC501
pin "20"?
YES
Check the vicinity of
IC541.
Check the feed motor
connection wiring.
KD-S723R/KD-S721R
NONO
Check CD 9V
and 5V.
Check the feed motor.
Focus Section
When the lens is
moving:
4V
Does the S-search
waveform appear at
IC501 pins "6" and "7"?
Spindle Section
Is the disk rotated?
YES
Does the RF signal
appear at TP1?
YES
Is the RF waveform at TP1
distorted?
YES
Check IC501.
NO
YES
NO
NO
NO
Check the circuits in the vicinity of IC501
pins "14" ~ "18".
Check the pickup and
its connections.
Is 4V present at IC501
pins "8" and "9" ?
Check the spindle motor
and its wiring.
Check the circuits in the
vicinity of IC521 "2" ~ "7",
"18"~"24" or the pickup
YES
YES
NO NO
Is 4V present at IC541
pin "55" ?
YES
Check the vicinity of
IC501.
Check IC521 and
IC541.
Proceed to the Tracking
section
Tracking Section
When the disc is rotated
at first:
Is the tracking error signal
output at IC521 "12"?
Check IC521.
Approx. 1.2 V
YES
Check the circuit in the
vicinity of IC521 pins
"2" ~ "12".
YESYES
Check the pickup and
its connections.
1-13
Page 14
KD-S723R/KD-S721R

Maintenance of laser pickup

(1) Cleaning the pick up lens Before you replace the pick up, please try to clean the lens with a alcohol soaked cotton swab.
(2) Life of the laser diode When the life of the laser diode has expired, the following symptoms will appear. (1) The level of RF output (EFM output:ampli tude of eye pattern) will be low.
Is RF output
1.0 0.35Vp-p?
YES
O.K
(3) Semi-fixed resistor on the APC PC board The semi-fixed resistor on the APC printed circuit board which is attached to the pickup is used to adjust the laser power.Since this adjustment should be performed to match the characteristics of the whole optical block, do not touch the semi-fixed resistor. If the laser power is lower than the specified value,the laser diode is almost worn out, and the laser pickup should be replaced. If the semi-fixed resistor is adjusted while the pickup is functioning normally,the laser pickup may be damaged due to excessive current.
NO
Replace it.

Replacement of laser pickup

Turn off the power switch and,disconnect the power cord from the ac outlet.
Replace the pickup with a normal one.(Refer to "Pickup Removal" on the previous page)
Plug the power cord in,and turn the power on. At this time,check that the laser emits for about 3seconds and the objective lens moves up and down. Note: Do not observe the laser beam directly.
1-14
Play a disc.
Check the eye-pattern at TP1.
Finish.
Page 15

Description of major ICs

HA13164A(IC901):Regulator
1.Terminal layout
REMOTE
ANT
ACC.IN
VDD5V
SW5V
ACC5V
ANT.CTRL
MEMORY.IN
MEM.DET9VCTRL
123456789101112131415
2.Block diagram
CD8VAJILL10V
KD-S723R/KD-S721R
GND
3.Pin function
11
12
10
8
2
1
7
Surge Protector
BIAS TSD
15
3
TAB
note1) TAB (header of IC)
13
connected to GND
9
6
4
5
14
UNIT R:
C:F
Pin No. Symbol Function
1 2
REMOTE ANT
Output voltage is VCC-1 V when M or H level applied to CTRL pin. Output voltage is VCC-1 V when M or H level to CTRL pin and H level
to ANT-CTRL. 3 4 5 6 7 8 9
10 11 12 13 14 15
ACC.IN VDD5V SW5V ACC5V ANT.CTRL MEMORY.IN MEM.DET 9V CTRL CD8V AJ ILL10V GND
Connected to ACC.
Regular 5.7V.
Output voltage is 5V when M or H level applied to CTRL pin.
Output for ACC detector.
L:ANT output OFF , H:ANT output ON
Connected to VCC.
Low battery detect.
Output voltage is 9V when M or H level applied to CTRL pin.
L:BIAS OFF, M:BIAS ON, H:CD ON
Output voltage is 8V when H level applied to CTRL pin.
Adjustment pin for ILM output voltage.
Output voltage is 10V when M or H level applied to CTRL pin.
Connected to GND.
1-15
Page 16
KD-S723R/KD-S721R
UPD178078GF-561 (IC701) : System CPU
81
~
NC BUSINT BUSSI BUSSO JBUS-SCK NC I2CDAI I2CDAO I2CCLK NC LCDDA LCDSCK BUSI/O NC LCDCE SW2 SW3 SW4 RSTSW NC KEY0 KEY1 KEY2 LEVEL AVDD SM SQ NC AVSS REGCPU VDD REGOSC X2 X1 GND0 SD/ST GND2 NC IFC VDDPLL OSC NC
80 ~ 51
50
~
31
1 ~ 30
1.Pin layout
100
2.Pin function (1/2)
Pin NO.
1 2 3 4 5
6,7
8
9 10 11 12 13 14 15 16 17 18 19 20
21,22
23 24 25 26 27 28 29
30,31
32 33 34 35 36 37 38 39 40 41 42 43 44 45
I/OSymbol FUNCTION
-
No connection
I
JVC bus communication line
I
JVC bus communication line
O
JVC bus communication line
O
JVC bus communication line
-
No connection
I
Serial data input
O
Serial data output
O
Serial clock output
-
No connection
O
LCD driver serial data output
O
LCD driver serial clock output
O
JVC bus output select
-
No connection
O
LCD driver communication line
I
CD mech switch
I
CD mech switch
I
CD mech switch
I
Traverse mech rest switch
I
No connection
I
Key input
I
Key input
I
Key input
I
Audio level input
-
Power supply
I
Signal level meter input
I
Signal quality input
-
Non connection
-
Connect to GND
-
Connect to GND with capacitor
-
Power supply
-
Connect to GND with capacitor
-
System clock
I
System clock
-
Connect to GND
I
Station detector & Stereo indicator
-
Connect to GND
-
No connection
I
IF count input
-
---
I
FM,AM osc input
-
No connection
1-16
Page 17
KD-S723R/KD-S721R
2.Pin function (2/2)
Pin NO.
46
GNDPLL
47
AMEQ
48
FMEQ
49
IC(VPP)
50
RESET
51
SW1
52
REMOCON
53
NC
54
TEL_MUTE
55
POWER
56
CDON
57
MUTE
58
STAGE 1
59
BUZZER
60
STAGE 2
61~68
89~98
100
69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88
99
NC LM0 LM1 BUCK CCE BUS0 BUS1 BUS2 BUS3 RST PS1 PS2 DETACH RDSSCK GND1 MONO SEEK/STOP FM/AM AFCK RDSDATA PLLMONITOR NC VDDPORT GNDPORT
I/OSymbol FUNCTION
-
---
O
PLL error output for AM
O
PLL error output for FM
-
Setting to write for flash
I
System reset
I
CD mech switch
I
Remocon input
-
Non connection
O
TEL mute output
O
Power control
O
CD power control
O
Mute control
-
---
-
Non connection
-
---
-
Non connection
O
CD mech driver control
O
CD mech driver control
O
CD LSI communication line
O
CD LSI communication line I/O I/O I/O I/O
CD LSI communication line
CD LSI communication line
CD LSI communication line
CD LSI communication line
O
CD LSI communication line
I
ACC detection input
I
Memory detection
I
Detach detection
I
Clock input for RDS
-
Connect to GND
O
Mono by force
O
Switching SEEK & STOP
O
Band switch
O
AFcheck output
I
RDS data input
-
Non connection
-
Non connection
-
Vdd
-
Connect to GND
UPD178078GF-561
1-17
Page 18
KD-S723R/KD-S721R
LA4743K(IC302):Power AMP
1.Block diagram
+
0.22 F
+
0.22 F
11
1
12
6 20
-
+
Protective
circuit
-
+
2200 F 0.022 F
+
+
9
-
7
8
+
5
­3
2
47 F
+5V ST ON
+
0.22 F
N.C
+
0.22 F
4
Stand by
Switch
22
17
19
Mute
+
3.3 F
Low Level Mute ON
10
+
Ripple
Filter
Mute circuit
+
15
-
+
-
25
13
14
Protective
circuit
-
+
+
-
18
21
23
1-18
22 F
Muting &
16
+
ON Time Control
Circuit
24
Page 19
2.Terminal layout
KD-S723R/KD-S721R
VREF
3.Pin function
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
SymbolPin No. Function
TAB GND1 OUTRR­STBY OUTRR+ VCC1/2 OUTFR­GND2 OUTFR+ VREF INRR INFR SGND INFL INRF ONTIME OUTFL+ GND3 OUTFL­VCC3/4 OUTRL+ MUTE OUTRL­GND4 NC
Header of IC Power GND Outpur(-) for front Rch Stand by input Output (+) for front Rch Power input Output (-) for rear Rch Power GND Output (+) for rear Rch Ripple filter Rear Rch input Front Rch input Signal GND Front Lch input Rear Lch input Power on time control Output (+) for rear Lch Power GND Output (-) for rear Lch Power input Output (+) for front Muting control input Output (-) for front Power GND No connection
LA4743K
1-19
Page 20
KD-S723R/KD-S721R
LA6567H-X(IC501):CD DRIVER
1.Pin layout & blockdiagram
VCC2
V05-
V05+
V04+
V04-
V03+
V03-
FR
1
2
3
4
5
6
7
FR
CH 3,4,5
Power supply
CH5
CH4
CH3
Thermal shutdown
Output control
Level shiftLevel shiftLevel shiftLevel shift
Input
22K 11K
Signal system power supply
28
27
26
25
24
23
22
FR
REV
FWD
S-GND
VCONT
VIN4
VIN4G
VCC-S
FR
V02+
V02-
V01+
V01-
VCC1
VIN1
VIN1G
8
9
10
11
12
13
14
CH2
CH1
CH1,2
Power supply
11K
22K
5VREG(PNPTr
The outside putting)
22K
11K
22K
11K
21
20
19
18
17
16
15
VREF-IN
REG-OUT
REG-IN
VIN3G
VIN3
VIN2G
VIN2
1-20
Page 21
KD-S723R/KD-S721R
2. Pin function
Pin no. Symbol
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
VCC2
V05­V05+ V04+
V04­V03+
V03­V02+
V02­V01+
V01-
VCC1
VIN1
VIN1G
VIN2
VIN2G
VIN3
VIN3G
REG-IN
REG-OUT
VREF-IN
VCC-S VIN4G
VIN4
VCONT
S-GND
FWD
LA6567H-X(2/2)
Function
CH3,4,5 Power supply( It is short with VCC1,VCC-S) Loading output(-) Loading terminal (+) CH4 Output terminal(+) CH4 Output terminal(-) CH3 Output terminal(+) CH3 Output terminal(-) CH2 Output terminal(+) CH2 Output terminal(-) CH1 Output terminal(+) CH1 Output terminal(-) CH1,2(BTL) Power supply(It is short with VCC-S,VCC2) CH1 Input terminal CH1 Input terminal(For gain adjustment) CH2 Input terminal CH2 Input terminal(For gain adjustment) CH3 Input terminal CH3 Input terminal(For gain adjustment) Regulator terminal(Outside putting PNP base) Regulator terminal(Outside putting PNP collector) Standard voltage input terminal Signal system power supply(It is short with VCC1,VCC2) CH4 Input terminal(For gain adjustment) CH4 Input terminal 5CH(VLO) Output voltage set terminal Signal system GND 5CH(VLO)Signal output switch terminal(FWD),Input of logic of loading part
28
REV
5CH(VLO)Signal output switch terminal(REV), Input of logic of loading part
Frame(FR)at the center becomes system GND. Please be short-circuited on the outside and use the terminal of the power supply system and three teminals of VCC-S, VCC1,VCC2.
1-21
Page 22
KD-S723R/KD-S721R
TC9462F(IC541):DSP&DAC
1.Pin layout & Block Diagram
81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99
100
80
79
LPF
1 2 3
78
Micon
interface
77
4 5
75
76
74
73
1bit
DAC
Clock
generator
Correction
circuit
Audio out
circuit
6
7 8 9 10 11 12 13
72
71 67
70
Address circuit
16KRAM
Digital out
69
68
66
65
64
ROM
Automatic adjustment
RAM
Synchronous
guarantee
EFM decode
Sub code
decoder
14 15
16 17 18 19 20 21 22
61 60
63
62
Servo
control
Digital equalizer
circuit
CLV servo
Status
58 57 56 55
59
PWM D/A
23 24 25
A/D
VCO
PLL
TMAX
54
Data
slicer
26
27 28 29 30
53 52 51
+
-
+
­+
-
+
-
50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31
2.Pin function
PIN No.
1
2
3 4
5 6
7 8
9 10 11
12 13 14
15 16 17 18 19 20 21 22
23 24
25 P2V
SYMBOL
TEST0
HSO
UHSO
EMPH
LRCKOO
V
SS
BCK AOUT DOUT MBOV
IPF
SBOK CLCK
V
DD
V
SS
DATA SFSY SBSY SPCK SPDA COFS
MONIT
V
DD
TESIO0--I
REF
FUNCTIONAL DESCRIPTION
I/O
Test mode terminal.Normally, Keep at open.
I
Playback speed mode flag output terminal.
UHSO
HSO
O
H H
L
O
Subcode Q data emphasis flag output terminal.Emphasis ON at "H" level and OFF at "L" level.The output polarity can invert by command. Channel clock output terminal.(44.1khz)L-ch at "L" level and R-ch at "H" level. the output polarity can invert by command.
Digital GND terminal.
--
O
Bit clock output terminal.(1.4112MHz) Audio data output terminal.
O
Digital data output terminal.
O
Buffer memory over signal output terminal. Over at "H" level.
O
Correction flag output terminal. At "H" level,AOUT output is made to correction
O
impossibility by C Subcode Q data CRCC check adjusting result output terminal.
O
The adjusting result is OK at "H" level. Subcode P W data readout clock input/output terminal.
I/O
This terminal can select by command bit.
--
Digital power supply voltage terminal.
--
Digital GND terminal.
O
Subcode P W data output terminal.
O
Play-back frame sync signal output terminal.
O
Subcode block sync signal output terminal.
O
Processor status signal readout clock output terminal.
O
Processor status signal output terminal.
O
Correction frame clock output terminal. (7.35kHz) Internal signal (DSP internal flag and PLL clock) output terminal.Selected by command.
O
This terminal output the text data with serial by command.
L
2
PLAYBACK SPEED H L H L
Nomal 2 times 4 times
--
correction processing.
Digital power supply voltage terminal. Test input/output terminal.Normally,keep at "L" level. The terminal that inputted the clock for read of text data by command.
--
PLL double reference voltage supply terminal.
REMARKS With pull-up resistor.
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
1-22
Page 23
Pin No.
26 27 28
29
30
Symbol
HSSW
ZDET
PDO
TMAXS
TMAX
I/O
2/4 times speed at "VREF" voltage.
O
1 bit DA converter zero detect flag output terminal.
O
Phase difference signal output terminal of EFM
O
Function Remarks
signal and PLCK signal. TMAX detection result output terminal. Selected by
O
command bit (TMPS) TMAX detection result output terminal. Selected by
O
command bit (TMPS)
DIFFERENCE RESULT TMAX OUTPUT Longer than fixed freq. "P2VREF" Shorter than fixed freq. "VSS" Within the fixed freq. "Hiz"
KD-S723R/KD-S721R
TC9462F(2/3)
2-state output(PVREF,HiZ)
3-state output.
(P2VREF,PVREF,VSS)
3-state output.
(P2VREF,PVREF,VSS)
3-state output.
(P2VREF,HiZ,VSS)
-
31 32 33 34
35 36 37 38
39 40
41 42 43 44 45 46
47 48 49 50 51 52 53 54
55
56 57
58~61
62 63
64~67
68 69 70
LPFN
LPFO
PVREF
VCOREF
VCOF
AVSS
SLCO
RFI
AVDD RFCT
RFZI
RFRP
FEI
SBAD
TSIN
TEI
TEZI FOO
TRO
VREF
RFGC
TEBC
FMO
FVO
DMO
2VREF
SEL
FLGA~D
VDD
VSS
IO0~3
DMOUT
CKSE
DDACT
LPF amplifier inverting terminal for PLL.
I
LPF amplifier output terminal for PLL.
O
PLL reference voltage supply terminal.
­VCO center frequency reference level terminal. Normally,
I
keep at "PVREF" level. VCO filter terminal.
O
Analog GND terminal.
­Data slice level output terminal.
O
RF signal input terminal.
I
Analog power supply voltage terminal.
­RFRP signal center level input terminal
I
RFRP zero cross input terminal
I
RF ripple signal input terminal
I
Focus error signal input terminal
I
Sub-beam adder signal input terminal
I
Test input terminal Normally, keep at "vref" level
I
Tracking error signal input terminal. Take in at tracking
I
servo ON. Tracking error zero cross input terminal
I
Focus servo equalizer output terminal
O
Tracking servo equalizer output terminal
O
Analog reference voltage supply terminal
­RF amplitude adjustment control signal output terminal
O
Tracking balance control signal output terminal
O
Feed equalizer output terminal
O
Speed error signal or feed search equalizer output
O
terminal Disk equalizer output terminal
O
DSP, Synchronize to PXO)
Analog double reference voltage supply terminal
­APC circuit ON/OFF indication signal output terminal
O
External flag output terminal for internal signal
O
Digital power supply voltage terminal
­Digital GND terminal
­General I/O terminal
I/O
This terminal control IO0~IO3 terminal
I
Normally, keep at open
I
DAC test mode terminal. Normally, keep at open
I
(PWM carrier=88.2kHz for
Analog input. Analog output.
-
-
Analog output.
­Analog output. Analog input.
(Zin:selected by command)
­Analog input(Zin : 50k ) Analog input. Analog input. Analog input. Analog input. Analog input. Analog input.
Analog input(Zin :10k )
Analog output.(2VREF AVSS)
­3-state PWM signal output. (2VREF,VREF,VSS) (PWM carrier =88.2kHz)
3-state output.
(2VREF,VREF,VSS)
-
-
-
-
-
­With pull-up resistor. With pull-up resistor. With pull-up resistor.
1-23
Page 24
KD-S723R/KD-S721R
Pin No.
71 72 73 74 75 76 77 78
79
80 81 82 83 84 85
86 87~89 90~93
94
95
96
97
98
99
100
Symbol
TESIN
TESIO1
VSS
PXI PXO VDD
XVSS
XI
XO
XVDD DVSR
RO
DVDD
DVR
LO
DVSL
TEST1~3
BUS0~3
VDD VSS
BUCK
CCE
TEST4
TSMOD
RST
I/O
Test input terminal, Normally, keep at "L" level
I
Test input/output terminal. Normally, keep at "L" level
I
Digital GND terminal
­Crystal oscillator connecting input terminal for DSP
I
Crystal oscillator connecting output terminal for DSP
O
Digital power supply voltage terminal
­Oscillator GND terminal for system clock
­Crystal oscillator connecting input terminal for system
I
clock Crystal oscillator connecting output terminal for system
O
clock Oscillator power supply voltage terminal for system clock
­Analog GND terminal for DA converter (Rch)
­R channel data forward output terminal
O
Analog supply voltage terminal for DA converter
­Reference voltage terminal for DA converter
­L channel data forward output terminal
O
Analog GND terminal for DA converter (Lch)
­Test mode terminal . Normal keep at open
I
Micon interface data input/output terminal
I/O
Digital power supply voltage terminal
­Digital GND terminal
­Micon interface clock input terminal
I
Command and data sending/receiving chip enable signal
I
input terminal Test mode terminal. Normal, keep at open
I
Local test mode selection terminal
I
Reset signal input terminal. Reset at "L" level
I
Function Remarks
TC9462F(3/3)
Analog input. Analog input.
-
-
-
-
-
-
-
-
-
-
-
-
-
­With piull-up resistor. Schmit input. With pull-up resistor.
-
­Schmit input. Schmit input.
With pull-up resistor. With pull-up resistor. With pull-up resistor.
1-24
Page 25
SAA6579T-X(IC71):RDS Detector
1.Pin layout
CLK
16
T57
15
OSCO
14
OSCI
13
V
dd
12
GND
11
TEST
10
MODE
9
SCOUT
2.Block diagram
QUAL
DATA
Vref
MUX
GND
CIN
1 2 3 4
dd
V
5 6 7 8
KD-S723R/KD-S721R
121413
3.Pin function
4
8
7
CLOCKED COMPARATOR
5
3
REFERENCE VOLT AGE
Pin No.
1 2 3 4
ANTI­ALIASING FILTER
6 11
Symbol
QUAL DATA Vref MUX
VP1
57 kHz BANDPASS (8th ORDER)
COSTAS LOOP VARIABLE AND FIXED DIVIDER
CLOCK REGERATION AND SYNC
Quality indication output RDS data output Reference voltage output (0.5VDDA) Multiolex signal input
RECONSTRUCTION FILTER
TEST LOGIC AND OUTPUT SELECTOR SWITCH
Description
OSCILATOR AND DIVIDER
BIPHASE SYMBOL DECODER
910
QUALITY BIT GENERATOR
DIFFERENTIAL DECODER
1
2
15
15
5 6 7 8
9 10 11 12 13 14 15 16
Vdd GND CIN SCOUT MODE TEST GND Vdd OSCI OSCO T57 CLK
+5V supply voltage for analog part Ground for analog part (0V) Subcarrier input to comparator Subcarrier output of reconstruction filter Oscllator mode / test control input Test enable input Ground for digital part (0V) +5V supply voltage for digital part Oscillator input Oscillator output 57 kHz clock signal output RDS clock output
1-25
Page 26
KD-S723R/KD-S721R
TA2109F-X (IC501) : RF amp.
1. Pin layout
24 13
112
2. Block diagram
SBAD
13
FEO
14
10pF
FEN
15
VRO
16
RFRP
17
RFIS
18
RFGO
19
10k ohm
21k ohm
20k ohm
20k ohm
50k ohm
36pF
7.96k ohm
50uA
20k ohm
15k ohm 30k ohm 15k ohm
20uA
10k ohm
21k ohm
12k ohm 12k ohm
PEAK
BOTTOM
10k ohm 10k ohm
30k ohm
21k ohm 29k ohm
24k ohm 24k ohm
1.74k ohm
180k ohm
20pF
65uA
47k ohm
SW3
13k ohm
7.67k ohm
10k ohm
3 STATE
DET.
SW2
680 ohm
2.12k ohm
SW1
LDC
1k ohm
20pF
TEO
TEN
2VRO
TEB
SEL
LDO
MDI
12
11
10
9
8
7
6
3. Pin function
Pin
SymbolI/O
No.
Vcc FNI
FPI
TPI TNI MDI
SEL
TEB
TEN
­I I I I I
O
I I
O
I
O
10 11 12
1 2 3 4 5 6 7 8 9
LDO
2VRO
TEO
RFGC
20
AGCI
21
re=130 ohm
RFO
22
GND
23
RFN
24
23.5k ohm
3.3k ohm
12k ohm
1.53k ohm
3.3k ohm
Pin function
Power supply input terminal Main beam I-V amp input terminal Main beam I-V amp input terminal Sub beam I-v input terminal Sub beam I-V input terminal Monitor photo diode amp input terminal Laser diode amp output terminal Laser diode control signal input terminal T. error balance adj. signal input terminal Reference voltage output terminal TE amp negative input terminal TE error signal output terminal
180k ohm
40pF
180k ohm
Pin No.
13 14 15 16 17 18 19 20 21 22 23 24
180k ohm
20pF
60k ohm 60k ohm
40pF
SymbolI/O
SBAD
RFRP
RFGO
RFGC
FEO FEN
VRO
RFIS
AGCI
RFO GND
RFN
O O
I O O
I O
I
I O
-
I
TNI
TPI
FPI
FNI
Vcc
5
4
3
2
1
I-I
I-I
20k ohm
20k ohm
20k ohm
20k ohm
Pin function
Sub beam adder signal output terminal Focus error signal output terminal FE amp negative input terminal Reference voltage (VREF) output terminal Track count signal output terminal RFRP detect circuit input terminal RF gain signal output terminal RF amplitude adj. control signal input terminal RF signal amplitude adj. amp input terminal RF signal output terminal Ground terminal RF amp negative input terminal
1-26
Page 27
LC75823W (IC601) : LCD driver
1. Pin Layout & Symbol
KD-S723R/KD-S721R
S1 S2 S3 S4 S5 S6 S7 S8
S9 S10 S11 S12 S13 S14 S15 S16
DICLCE
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
S17
S18
S19
OSC
S20
Vss
S21
VDD2
VDD1
S22
S23
INH
S24
VDD
S25
COM3
COM2
S26
S27
COM1
S52
S28
S29
S51
S30
S50
S31
S49
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
S32
S48 S47 S46 S45 S44 S43 S42 S41 S40 S39 S38 S37 S36 S35 S34 S33
2. Pin Function
Pin No.
1 to 52
53 to 55
COM1 to COM3 56 57
58
59
60 61
62 63
Symbol
S1 to S52
VDD
INH
VDD1
VDD2
Vss
OSC
CE
CL
I/O
O
Segment output pins used to display data transferred
Function
by serial data input.
O
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.
I
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.
I
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.
I
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.
I/O
Oscillator connection. An oscillator circuit is formed by connecting an external resistor and capacitor at this pin. Serial data CE : Chip enable interface connection
I
to the controller. CL : Sync clock
64
DI
DI : Transfer data
1-27
Page 28
KD-S723R/KD-S721R
TEA6320T-X (IC161) : E.volume
1.Pin layout
SDA
GND
OUTLR
OUTLF
TL B2L B1L
IVL
ILL
QSL
INCOCHL
IMO
INTUL
INCDL
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
SCL VCC OUTRR OUTFR TR B2R B1R IVR ILR QSR
Vref INCDCHR CAP INTUL INCDR
2.Block diagram
10 8 9 7 6
21 31
2
19
16 15 13 11
14
22 20 18 17
POWER SUPPLY
SOURCE
SELECTOR
23 25 24 26 27 28
VOLUME 1
+20 to -31 dB
LOUDNESS
LEFT
VOLUME 1
+20 to -31 dB
LOUDNESS
RIGHT
BASS LEFT
+15 dB
LOGIC
BASS RIGHT +15 dB
5
TREBLE
LEFT
+12 dB
TREBLE
RIGHT +12 dB
12
MUTE
FUNCTION
ZERO CROSS
DETECTOR
VOLUME 2
0 to 55 dB
BALANCE
FENDER REAR
VOLUME 2
0 to 55 dB
BALANCE
FENDER FRONT
HC BUS
REC
VOLUME 2
0 to -55dB BALANCE
FENDER FRONT
VOLUME 2
0 to -55dB BALANCE
FENDER REAR
3
4
32
1
29
30
3.Pin functions
Pin
Symbol
No.
SDA
1
GND
2
OUTLR
3
OUTLF
4
TL
5
B2L
6
B1L
7
IVL
8
ILL
9
QSL
10 11 12
I
NCDCHL
13
I/O
Serial data input/output.
I/O
Ground.
­output left rear.
O
output left front.
O
Treble control capacitor left channel or
I
input from an external equalizer. Bass control capacitor left channel or
-
output to an external equalizer. Bass control capacitor left channel.
­Input volume 1. left control part.
I
Input loudness. left control part.
I
Output source selector. left channel.
O
Not used
­Not used
­Input C left source.
I
Functions Functions
Pin No.
17 18 19 20 21 22 23 24 25 26 27 28 29
Symbol
INCDR INTUR
CAP
INCDCHR
Vref
QSR
ILR
IVR B1R B2R
TR
OUTRF
I/O
I
Input A right source.
I
Input B right source.
-
Electronic filtering for supply.
I
Input C right source.
-
Reference voltage (0.5Vcc)
-
Not used
O
Output source selector right channel.
I
Input loudness right channel.
I
Input volume 1. right control part.
-
Bass control capacitor right channel Bass control capacitor right channel or
O
output to an external equalizer. Treble control capacitor right channel or
I
input from an external equalizer.
O
Output right front.
1-28
14 15 16
IMO INTUL INCDL
Not used
­Input B left source.
I
Input A left source.
I
30 31 32
OUTRR
Vcc
SCL
O
Output right rear.
-
Supply voltage.
I
Serial clock input.
Page 29
HD74HC126FP-X (IC801) : Buffer
KD-S723R/KD-S721R
1.Terminal layout
1C
1
1A
2
1Y
3
2C
4
2A
5
2Y
6
GND
7
2.Block diagram
Input
VU
14
4C
13
4A
12
4Y
11
3C
10
3A
9
3Y
8
Vcc Vcc
1A 2A 3A 4A 1C 2C 3C
See Function Table
4C
3.Pin function
Output
1Y
2Y
Output
2Y
Output
3Y
Output
4Y
Input
C L H H
A X L H
Output
Y Z H L
Note) H:High level
L:Low level X:Irrelevant Z:Off(High-impedance) State a 3-state input
1k
S1
CL
1k
Sample as Load Circuit 1 Sample as Load Circuit 1
Sample as Load Circuit 1
Note) CL includes probe and jig capacitance
NJM4565M-WE (IC581) : Ope. amp
A OUTPUT
-
A INPUT
+
A INPUT
1
2
3
-
4
V
+
8
V
B OUTPUT
7
-
B INPUT
6
5
+
B INPUT
1-29
Page 30
KD-S723R/KD-S721R
VICTOR COMPANY OF JAPAN, LIMITED
MOBILE ELECTRONICS DIVISION PERSONAL & MOBILE NETWORK BUSINESS UNIT. 10-1,1Chome,Ohwatari-machi,Maebashi-city,371-8543,Japan
(No.49693)
200202
Page 31
KD-S723R/KD-S721R

PARTS LIST

[ KD-S723R ] [ KD-S721R ]
* All printed circuit boards and its assemblies are not available as service parts.
Area suffix
E ----------- Continental Europe EX --------------- Central Europe
- Contents -
Exploded view of general assembly and parts list (Block No.M1) CD mechanism assembly and parts list (Block No.MB) Electrical parts list (Block No.01,02)
Packing materials and accessories parts list (Block No.M3,M5)
3- 2 3- 4 3- 7 3-12
3-1
Page 32
KD-S723R/KD-S721R
Exploded view of general assembly and parts list
Block No.
M
M
1
M
8
48
47
8
8
42
40
43
7
45
44
46
5
A
39
9
13
Main board
B
9
12
4
31
34
33
37
35
38
LCD1
10
31
30
15
14
32
Front board
23
26
19
6
24
20
25
22
21
29
28
27
18
3
7
A
2
B
16
11
6
1
3-2
6
17
Page 33
KD-S723R/KD-S721R
Parts list (General assembly)
Item
A
1 --------------­2 FSJC1029-401 3 FSMH3001-202 4 FSKM3011-002 5 FSMA3004-203 6 QYSDST2604Z 7 FSKZ4005-001 8 QYSDST2604Z
9 QYSDST2606Z 10 FSKZ4005-001 11 FSJC2013-013 12 FSKS3010-001 13 FSKW4005-003 14 FSXP3026-002 15 FSKW3002-015 16 FSPK3009-002 17 GE10037-001A 18 GE30300-006A
19 GE20119-001A 20 GE30304-001A 21 GE30305-001A 22 GE20131-001A 23 GE30307-001A 24 GE20130-011A 25 GE20118-001A 26 GE20120-001A 27 GE30306-001A 28 FSKW3002-012 29 GE30117-001A 30 GE10038-001A 31 VKZ4777-001 32 GE30302-002A 33 FSJK3035-001 34 FSKS3022-003 35 FSYH4078-002 37 QNZ0442-001 38 GE30347-002A
39 VMA4652-001SS 40 QMFZ047-150-T
A
42 FSKM3012-015 43 FSKL4024-001 44 GE40104-001B 45 GE40103-001A 46 QYSDST2606Z 47 QYSDST2606Z 48 QYSDSF3006Z
LCD 1 QLD0210-002
Parts number Parts name Area
GE30300-007A
GE30346-002A
Q'ty
CD MECHA 1 TOP CHASSIS SIDE PANEL BOTTOM COVER INSULATOR SCREW 3 SCREW SCREW SCREW SCREW FRONT CHASSIS LOCK LEVER TORSION SPRING RLS KNOB COMP.SPRING BLIND FRONT PANEL FINDER ASSY FINDER ASSY PRESET BUTTON POWER BUTTON EJECT BUTTON D.FUNC BUTTON SND FTN BUTTON PUSH BUTTON +/- BUTTON UP/DOWN BUTTON DETACH BUTTON COMP. SPRING LIGHT LENS REAR COVER MINI SCREW LCD CASE LCD LENS LENS CASE LIGHTING SHEET RUBBER CONNE NAME PLATE NAME PLATE EARTH PLATE FUSE REAR BRACKET IC BRACKET HEAT SINK REGULAT.BRACKET SCREW SCREW SCREW LCD MODULE
Description
TN-CCD1001Z-136J 1 1 1 1
CHASSIS+MECHA BKT 2
CHASSIS+SIDE PANEL 3
CHASSIS+REAR BKT 2
CHASSIS+MAIN PWB 1
SIDE PANEL+IC BKT 1 1 1
LOCK LEVER 1 1 1 1 1
KD-S723R 1
KD-S721R 1 1 1 1
FM/CD/AM 1 1 1 1 1 1
DETACH BUTTON 1 1 4
FRONT+REAR 1 1 1 1 1 1
KD-S723R 1
KD-S721R 1 1 1 1 1 1 1
FOR ANT 1 1
LINE OUT 1
Block No. M1MM
3-3
Page 34
KD-S723R/KD-S721R
CD mechanism assembly and parts list
Grease
G-31SA G-31SA(Bottom side) RX-405
101
14
17
12
16
70
b
90
91
5
71
15
100
7
TN-CCD1001Z-136J
Block No.
M
M
B
M
102
23
102
1
23
101
49
101
101
20
10
9
11
105
65
66
62
13
4
2
100
7
6
8
64
b
a
62
68
d
110
67
c
61
72
113
88
93
3
80
86
102
22
79
c
113
133
134
82
81
117
22
19
18
92
135
49
116
103
84
107
43
36
48
131
56
d
49
d
107
130
50
32
38
52
41
39
109
42
a
104
51
40
107
63
57
3-4
62
101
108
89
107
33
106
29
132
106
108
Page 35
KD-S723R/KD-S721R
Parts list (CD mechanism)
Item
A
1 30310101T 2 30310103T 3 30310107T 4 30310108T 5 30310142T 6 30310143T 7 30310145T 8 30310112T
9 30310155T 10 30310115T 11 30310116T 12 30310134T 13 30310159T 14 30310150T 15 30310156T 16 30310138T 17 30310122T 18 30310148T 19 30310125T 20 30310149T 22 30310151T 23 30310129T 29 30300510T 32 30310544T 33 30310547T 36 30310546T 38 30310533T 39 30310548T 40 30310512T 41 30310558T 42 30310514T 43 30310552T 48 30310557T 49 30310524T 50 30310525T 51 30310545T 52 30310556T 56 64180405T 57 OPTIMA-720L1 61 30311035T 62 19501403T 63 30311037T 64 30311036T 65 30311038T 66 30311039T 67 30311040T 68 30311041T 70 64180402T
Parts number Parts name Area
FRAME DANPER PIN UPPER PLATE SEL STOP PLATE SEL ARM (L)L SEL ARM (R)L S ARM SPRING(L) TRIG LEVER TRIG PL(Z) TRIG PL SPRING TRIG ARM FIX ARM (L)B FIX ARM (R)Z FIX PL (L)Z FIX PL (R) Z LDG GR (6)B LDG GEAR (6)SP S.L ARM(N) S.L ARM SPRING REAR DAM BKT(Z) HUNG UP SP (FZ) HUNG UP SP (R) PU GEAR(B) F.M.BASE(Z) FD GR BLK(Z) PU GUIDE(Z) THRUST SPR(M) PU M NUT(Z) NUT PUSH SPR PL CLP ARM(Z) CLP ARM SPRING CLAMPER(Z) CLAMPER PLATE(Z DAMPER (J) CLP ARM SPR (L) F SCREW GUIDE(Z PU G.SP PLT(Z) DET SW C.D PICK (CAR) FPC HOLDER(Z) WIRE CLAMPER PICK UP FPC(Z) CONNECT.PCB(Z-J WIRE (5P-Z) WIRE (LD-Z) WIRE (FD-Z) WIRE (RS-Z) DET SWITCH
Q'ty
1 2 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 1 1 1 1 1 1 1 1 1 1 1 3 1 1 1 1
ESE11SF4 1 1 3 1 1 1 1 1 1 2
ESE22MH1
Block No. MBMM
Description
3-5
Page 36
KD-S723R/KD-S721R
Parts list (CD mechanism)
Item
A
71 64180403T 72 68150232T 79 30311105T 80 30311138T 81 30311109T 82 30311110T 84 30311112T 86 30311136T 88 30311118T 89 30311119T 90 30311123T 91 30311124T 92 30311129T
93 30311140T 100 9C0620503T 101 9C2020401T 102 9C4320403T 103 9C0117223T 104 9C0917703T 105 9C0320201T 106 9C4920013T 107 9C4920603T 108 9P0220031T 109 9C0314203T 110 9C0420253 113 9W0330276 116 9W0725030T 117 9W0640030T 130 303105310T 131 303105311T 132 303105312T 133 303111301T 134 303111302T 135 303105502T
Parts number Parts name Area
DET SWITCH CONNECTOR SOPPORT PLATE GR MT BLK(N) LDG GEAR (2) LDG GEAR (3) LDG GEAR (5) LDG ROLLER L.P SPRING (L) L.P SPRING (R) SW PCB SW ACTUATOR LDG BELT FRONT BRKT (J) C B TAP SCREW C SCREW TS.G C B TAP SCREW SCREW C TAP SCREW S3 C TAP SCREW S3 C TAP SCREW S3 C TAP SCREW B3 TAMS SCREW C TAP SCREW C TAP SCREW NW BLUE LUMILAR W WASHER FEED MO ASSY SPINDLE MO ASSY FEED SCREW ASSY LDG MOTOR ASSY RDG RLR SFT ASY T.T.BASE ASSY
Q'ty
2 1 1 1 1 1 1 2 1 1 1 1 1 1 2 5 4 2 1 1 2 4 2 1 1 2 1 1 1 1 1 1 1 1
Block No. MBMM
Description
ESE22MH3 TKC-W26X-C1
M2X5 M2X4 M2X4 M1.7X2.2 M1.7X7 M2X2 M2X10 M2X6 M2X3 M1.4X2 M2X2.5
2.9X5X0.3
2.3X9.8X0.25
1.4X3.2X0.4
3-6
Page 37
KD-S723R/KD-S721R
e
e
Electrical parts list (Main board)
Item
A
C 1 NDC31HJ-5R0X C CAPACITOR
C 2 NDC31HJ-100X C CAPACITOR
C 3 QERF1HM-104Z E CAPACITOR 0.1MF 20% 50V C 4 NCS31HJ-221X C CAPACITOR
C 5 QEKJ1HM-474Z E CAPACITOR 0.47MF 20% 50V
C 6 NCB31EK-473X C CAPACITOR C 7 NDC31HJ-101X C CAPACITOR
C 9 QERF1AM-227Z E CAPACITOR 220MF 20% 10V
C 10 NCB31HK-102X C CAPACITOR C 31 QERF1HM-225Z E CAPACITOR 2.2MF 20% 50V
C 32 NCB31HK-102X C CAPACITOR
C 41 NCB31EK-333X C CAPACITOR C 42 NCB31HK-822X C CAPACITOR
C 43 QERF1CM-107Z E CAPACITOR 100MF 20% 16V
C 51 QERF1HM-474Z E CAPACITOR 0.47MF 20% 50V C 52 NCB31HK-472X C CAPACITOR
C 53 NCB31EK-104X C CAPACITOR
C 54 NCB31EK-103X C CAPACITOR C 55 NCB31HK-331X C CAPACITOR
C 71 NDC31HJ-820X C CAPACITOR
C 72 NDC31HJ-470X C CAPACITOR C 73 NCB31HK-103X C CAPACITOR
C 74 QERF1AM-476Z E CAPACITOR 47MF 20% 10V
C 75 NDC31HJ-561X C CAPACITOR C 76 QEKJ1HM-225Z E CAPACITOR 2.2MF 20% 50V
C 77 NCB31EK-223X C CAPACITOR
C 161 QEKJ1HM-105Z E CAPACITOR 1.0MF 20% 50V C 162 NCB31HK-822X C CAPACITOR
C 163 NCB31AK-154X C CAPACITOR
C 164 QEKJ1HM-224Z E CAPACITOR 0.22MF 20% 50V C 165 NCB31EK-333X C CAPACITOR
C 166 NCB31HK-562X C CAPACITOR
C 167 QEKJ1HM-475Z E CAPACITOR 4.7MF 20% 50V C 168 QEKJ1HM-475Z E CAPACITOR 4.7MF 20% 50V
C 169 QERF1HM-105Z E CAPACITOR 1.0MF 20% 50V
C 171 QERF1HM-105Z E CAPACITOR 1.0MF 20% 50V C 172 NCB31HK-183X C CAPACITOR
C 173 NCB31EK-104X C CAPACITOR
C 181 QEKJ1HM-105Z E CAPACITOR 1.0MF 20% 50V C 182 NCB31HK-822X C CAPACITOR
C 183 NCB31AK-154X C CAPACITOR
C 184 QEKJ1HM-224Z E CAPACITOR 0.22MF 20% 50V C 185 NCB31EK-333X C CAPACITOR
C 186 NCB31HK-562X C CAPACITOR
C 187 QERF1HM-475Z E CAPACITOR 4.7MF 20% 50V C 188 QERF1HM-475Z E CAPACITOR 4.7MF 20% 50V
C 189 QEKJ1HM-105Z E CAPACITOR 1.0MF 20% 50V
C 191 QERF1HM-105Z E CAPACITOR 1.0MF 20% 50V C 192 NCB31HK-183X C CAPACITOR
C 241 NCB21HK-153X C CAPACITOR
C 242 NCB31EK-473X C CAPACITOR C 243 QEKJ1CM-226Z E CAPACITOR 22MF 20% 16V
C 244 QEKJ1HM-105Z E CAPACITOR 1.0MF 20% 50V
C 309 QEKJ1CM-107Z E CAPACITOR 100MF 20% 16V C 310 QERF1CM-106Z E CAPACITOR 10MF 20% 16V
C 311 NCB31EK-473X C CAPACITOR
C 312 NCB31EK-473X C CAPACITOR C 313 NCB31HK-223X C CAPACITOR
C 315 NCB31HK-223X C CAPACITOR
C 316 QERF1CM-226Z E CAPACITOR 22MF 20% 16V C 317 QERF1CM-476Z E CAPACITOR 47MF 20% 16V
C 321 QERF1HM-225Z E CAPACITOR 2.2MF 20% 50V
C 322 NCS31HJ-391X C CAPACITOR
Parts number Parts name Ar
Block No. 01
Remarks
Item
a
A
C 331 QERF1HM-225Z E CAPACITOR 2.2MF 20% 50V
C 332 NCS31HJ-391X C CAPACITOR
C 341 QERF1HM-225Z E CAPACITOR 2.2MF 20% 50V C 342 NCS31HJ-391X C CAPACITOR
C 351 QERF1HM-225Z E CAPACITOR 2.2MF 20% 50V
C 352 NCS31HJ-391X C CAPACITOR C 391 NCB31EK-104X C CAPACITOR
C 392 NCB31EK-104X C CAPACITOR
C 393 NCB31EK-104X C CAPACITOR C 394 NCB31EK-104X C CAPACITOR
C 501 QERF1AM-227Z E CAPACITOR 220MF 20% 10V
C 502 NCB31HK-103X C CAPACITOR C 503 QERF1CM-226Z E CAPACITOR 22MF 20% 16V
C 521 NCB31HK-103X C CAPACITOR
C 522 NCB31HK-103X C CAPACITOR C 523 NCB31EK-103X C CAPACITOR
C 524 QEKJ1AM-107Z E CAPACITOR 100MF 20% 10V
C 525 NCB31HK-103X C CAPACITOR C 526 QEKJ0JM-107Z E CAPACITOR 100MF 20% 6.3V
C 527 QERF0JM-107Z E CAPACITOR 100MF 20% 6.3V
C 528 NDC31HJ-101X C CAPACITOR C 529 NCB31HK-103X C CAPACITOR
C 530 QERF0JM-107Z E CAPACITOR 100MF 20% 6.3V
C 531 NCB31EK-104X C CAPACITOR C 532 NCB31EK-104X C CAPACITOR
C 533 NDC21HJ-560X C CAPACITOR
C 541 QEKJ0JM-107Z E CAPACITOR 100MF 20% 6.3V C 542 NCB31HK-103X C CAPACITOR
C 543 QERF1HM-105Z E CAPACITOR 1.0MF 20% 50V
C 544 QEKJ0JM-107Z E CAPACITOR 100MF 20% 6.3V C 545 NCB31HK-103X C CAPACITOR
C 546 QEKJ0JM-107Z E CAPACITOR 100MF 20% 6.3V
C 547 NDC31HJ-470X C CAPACITOR C 548 NCB31HK-153X C CAPACITOR
C 549 QERF0JM-107Z E CAPACITOR 100MF 20% 6.3V
C 550 NCB31HK-103X C CAPACITOR C 551 NCB31HK-272X C CAPACITOR
C 552 NCB31HK-103X C CAPACITOR
C 553 QERF0JM-107Z E CAPACITOR 100MF 20% 6.3V C 554 NCB31HK-103X C CAPACITOR
C 555 NCB31EK-333X C CAPACITOR
C 556 NCB31HK-332X C CAPACITOR C 557 NDC31HJ-561X C CAPACITOR
C 558 QERF0JM-107Z E CAPACITOR 100MF 20% 6.3V
C 559 NCB31EK-473X C CAPACITOR C 560 NCB31EK-473X C CAPACITOR
C 561 NCB31EK-473X C CAPACITOR
C 562 NCB31EK-473X C CAPACITOR C 563 QEKJ0JM-107Z E CAPACITOR 100MF 20% 6.3V
C 564 NCB31HK-103X C CAPACITOR
C 565 NCB31HK-103X C CAPACITOR C 566 NDC31HJ-100X C CAPACITOR
C 567 NDC31HJ-100X C CAPACITOR
C 568 NCB31HK-103X C CAPACITOR C 569 QEKJ0JM-107Z E CAPACITOR 100MF 20% 6.3V
C 570 NDC31HJ-101X C CAPACITOR
C 571 QEKJ0JM-107Z E CAPACITOR 100MF 20% 6.3V C 572 QEKJ0JM-107Z E CAPACITOR 100MF 20% 6.3V
C 573 NCB31HK-103X C CAPACITOR
C 581 NCS31HJ-821X C CAPACITOR C 582 QEKJ1EM-475Z E CAPACITOR 4.7MF 20% 25V
C 583 QEKJ0JM-476Z E CAPACITOR 47MF 20% 6.3V
C 584 NCS31HJ-121X C CAPACITOR
Parts number Parts name Ar
Remarks
a
3-7
Page 38
KD-S723R/KD-S721R
e
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
e
Electrical parts list (Main board)
Item
A
C 591 NCS31HJ-821X C CAPACITOR
C 592 QEKJ1EM-475Z E CAPACITOR 4.7MF 20% 25V
C 593 QEKJ0JM-476Z E CAPACITOR 47MF 20% 6.3V C 594 NCS31HJ-121X C CAPACITOR
C 595 QEKJ1AM-107Z E CAPACITOR 100MF 20% 10V
C 701 NDC31HJ-220X C CAPACITOR C 702 NDC31HJ-220X C CAPACITOR
C 703 NCB31EK-104X C CAPACITOR
C 704 NCB31EK-104X C CAPACITOR C 706 QEKJ0JM-107Z E CAPACITOR 100MF 20% 6.3V
C 707 NCB31HK-103X C CAPACITOR
C 708 QERF0JM-107Z E CAPACITOR 100MF 20% 6.3V C 713 NCB31HK-471X C CAPACITOR
C 718 NCB31HK-103X C CAPACITOR
C 719 NCB31EK-104X C CAPACITOR C 720 NCB31EK-104X C CAPACITOR
C 721 NCB31EK-104X C CAPACITOR
C 770 NCB31HK-103X C CAPACITOR C 776 NCB31HK-103X C CAPACITOR
C 781 QERF1AM-227Z E CAPACITOR 220MF 20% 10V
C 782 QERF1CM-226Z E CAPACITOR 22MF 20% 16V C 783 NCB31EK-823X C CAPACITOR
C 891 NCB31EK-473X C CAPACITOR
C 901 QERF1AM-227Z E CAPACITOR 220MF 20% 10V C 902 NCB31EK-104X C CAPACITOR
C 903 QEKJ1CM-226Z E CAPACITOR 22MF 20% 16V
C 904 QERF1AM-227Z E CAPACITOR 220MF 20% 10V C 905 QERF1CM-106Z E CAPACITOR 10MF 20% 16V
C 907 QERF1HM-225Z E CAPACITOR 2.2MF 20% 50V
C 908 QEZ0338-228 E CAPACITOR 2200MF C 909 NCB31EK-104X C CAPACITOR
C 911 QERF1AM-476Z E CAPACITOR 47MF 20% 10V
C 912 QEKJ1AM-107Z E CAPACITOR 100MF 20% 10V C 913 QEKJ1CM-107Z E CAPACITOR 100MF 20% 16V
C 914 QERF1EM-475Z E CAPACITOR 4.7MF 20% 25V
C 915 QERF1CM-106Z E CAPACITOR 10MF 20% 16V C 933 NCB31EK-103X C CAPACITOR
CN501 QGB2027M1-26S CONNECTOR
CP601 VMC0334-001 CONNECTOR CP961 QNZ0112-001 CAR CONNECTOR
D 1 1SS133-T1 SI DIODE
D 2 1SS133-T1 SI DIODE D 3 1SS355-X DIODE
D 4 1SS355-X DIODE
D 161 1SS355-X DIODE D 162 1SS355-X DIODE
D 182 1SS355-X DIODE
D 241 1SS133-T1 SI DIODE D 242 1SS133-T1 SI DIODE
D 321 1SS355-X DIODE
D 331 1SS355-X DIODE D 341 1SS355-X DIODE
D 351 1SS355-X DIODE
D 501 DSK10C-T1 DIODE D 701 UDZS5.6B-X ZENER DIODE
D 702 UDZS5.6B-X ZENER DIODE
D 703 UDZS5.6B-X ZENER DIODE D 704 UDZS5.6B-X ZENER DIODE
D 705 UDZS5.6B-X ZENER DIODE
D 706 UDZS5.6B-X ZENER DIODE D 707 UDZS5.6B-X ZENER DIODE
D 781 1SS355-X DIODE
D 782 1SS133-T1 SI DIODE
Parts number Parts name Ar
Block No. 01
Remarks
Item
a
A
D 784 UDZ11B-X ZENER DIODE
D 891 1SS355-X DIODE
D 892 1SS355-X DIODE D 901 1SS355-X DIODE
D 910 CRS03-W SB DIODE
D 911 1N5401-TU-15 DIODE D 912 CRS03-W SB DIODE
IC 71 SAA6579T-X IC
IC161 TEA6320T-X IC IC301 LA4743K IC
IC501 LA6567H-X IC
IC521 TA2109F-X IC IC541 TC9462F IC
IC581 NJM4565M-WE IC
IC701 UPD178078GF-561 IC IC961 HA13164A IC
J 1 QNB0100-002 ANT TERMINAL
J 301 QNN0170-001 PIN JACK L 1 QQL244J-4R7Z INDUCTOR
L 541 QQL244J-4R7Z INDUCTOR
L 542 QQL244J-4R7Z INDUCTOR L 701 QQL244J-4R7Z INDUCTOR
L 961 QQR0703-001 CHOKE COIL
R 1 NRSA63J-8R2X MG RESISTOR
R 2 NRSA63J-102X MG RESISTOR
R 3 NRSA63J-102X MG RESISTOR R 4 NRSA63J-223X MG RESISTOR
R 5 NRSA63J-472X MG RESISTOR
R 6 NRSA63J-473X MG RESISTOR R 7 NRSA63J-472X MG RESISTOR
R 8 NRSA63J-473X MG RESISTOR
R 9 NRSA63J-332X MG RESISTOR
Parts number Parts name Ar
1 UN2211-X TRANSISTOR 2 2SD601A/R/-X TRANSISTOR
3 UN2111-X TRANSISTOR
4 2SB709A/R/-X TRANSISTOR 5 2SB815/7/-X TRANSISTOR
7 UN2211-X TRANSISTOR
31 2SD601A/R/-X TRANSISTOR 32 2SD601A/R/-X TRANSISTOR
41 2SD601A/R/-X TRANSISTOR
42 2SC3661-X TRANSISTOR 43 UN2211-X TRANSISTOR
51 2SD601A/R/-X TRANSISTOR
52 2SD601A/R/-X TRANSISTOR 53 UN2211-X TRANSISTOR
161 2SD601A/R/-X TRANSISTOR
162 UN2111-X TRANSISTOR 174 UN2111-X TRANSISTOR
181 2SD601A/R/-X TRANSISTOR
241 2SD601A/R/-X TRANSISTOR 321 2SD1048/6-7/-X TRANSISTOR
331 2SD1048/6-7/-X TRANSISTOR
341 2SD1048/6-7/-X TRANSISTOR 351 2SD1048/6-7/-X TRANSISTOR
501 2SB1322/RS/-T TRANSISTOR
521 2SB1322/RS/-T TRANSISTOR 781 UN2111-X TRANSISTOR
782 UN2211-X TRANSISTOR
783 UN2111-X TRANSISTOR 891 UN2211-X TRANSISTOR
976 UN2211-X TRANSISTOR
977 2SB709A/R/-X TRANSISTOR
Remarks
a
3-8
Page 39
KD-S723R/KD-S721R
e
e
Electrical parts list (Main board)
Item
A
R 10 NRS181J-8R2X MG RESISTOR
R 31 NRSA63J-102X MG RESISTOR
R 32 NRSA63J-103X MG RESISTOR R 33 NRSA63J-152X MG RESISTOR
R 41 NRSA63J-332X MG RESISTOR
R 42 NRSA63J-102X MG RESISTOR R 43 NRSA63J-102X MG RESISTOR
R 44 NRS181J-330X MG RESISTOR
R 51 NRSA63J-471X MG RESISTOR R 52 NRSA63J-153X MG RESISTOR
R 53 NRSA63J-103X MG RESISTOR
R 54 NRSA63J-103X MG RESISTOR R 55 NRSA63J-222X MG RESISTOR
R 56 NRSA63J-473X MG RESISTOR
R 57 NRSA63J-473X MG RESISTOR R 58 NRSA63J-473X MG RESISTOR
R 71 NRSA63J-222X MG RESISTOR
R 72 NRSA63J-222X MG RESISTOR R 73 NRSA63J-222X MG RESISTOR
R 161 NRSA63J-224X MG RESISTOR
R 162 NRSA63J-223X MG RESISTOR R 163 NRSA63J-222X MG RESISTOR
R 164 NRSA63J-332X MG RESISTOR
R 165 NRSA63J-473X MG RESISTOR R 166 NRSA63J-473X MG RESISTOR
R 167 NRSA63J-103X MG RESISTOR
R 168 NRSA63J-223X MG RESISTOR R 169 NRSA63J-472X MG RESISTOR
R 170 NRSA63J-472X MG RESISTOR
R 181 NRSA63J-224X MG RESISTOR R 182 NRSA63J-223X MG RESISTOR
R 183 NRSA63J-222X MG RESISTOR
R 184 NRSA63J-332X MG RESISTOR R 185 NRSA63J-473X MG RESISTOR
R 186 NRSA63J-473X MG RESISTOR
R 187 NRSA63J-103X MG RESISTOR R 188 NRSA63J-223X MG RESISTOR
R 241 NRSA63J-224X MG RESISTOR
R 242 NRSA63J-102X MG RESISTOR R 243 NRSA63J-101X MG RESISTOR
R 244 NRSA63J-123X MG RESISTOR
R 245 NRSA63J-184X MG RESISTOR R 246 NRSA63J-223X MG RESISTOR
R 247 NRSA63J-473X MG RESISTOR
R 310 NRSA63J-472X MG RESISTOR R 321 NRSA63J-273X MG RESISTOR
R 322 NRSA63J-821X MG RESISTOR
R 323 NRSA63J-222X MG RESISTOR R 324 NRSA63J-101X MG RESISTOR
R 331 NRSA63J-273X MG RESISTOR
R 332 NRSA63J-821X MG RESISTOR R 333 NRSA63J-222X MG RESISTOR
R 334 NRSA63J-101X MG RESISTOR
R 341 NRSA63J-273X MG RESISTOR R 342 NRSA63J-102X MG RESISTOR
R 343 NRSA63J-222X MG RESISTOR
R 344 NRSA63J-101X MG RESISTOR R 351 NRSA63J-273X MG RESISTOR
R 352 NRSA63J-102X MG RESISTOR
R 353 NRSA63J-222X MG RESISTOR R 354 NRSA63J-101X MG RESISTOR
R 501 NRSA63J-822X MG RESISTOR
R 502 NRSA63J-562X MG RESISTOR
Parts number Parts name Ar
Block No. 01
Remarks
Item
a
A
R 503 NRSA63J-242X MG RESISTOR
R 504 NRSA63J-203X MG RESISTOR
R 506 NRS181J-0R0X MG RESISTOR R 507 NRS181J-822X MG RESISTOR
R 508 NRS181J-203X MG REGISTOR
R 521 NRSA63J-473X MG RESISTOR R 522 NRSA63J-473X MG RESISTOR
R 523 NRSA63J-473X MG RESISTOR
R 524 NRSA63J-473X MG RESISTOR R 525 NRSA63J-104X MG RESISTOR
R 526 NRSA63J-104X MG RESISTOR
R 527 NRSA02J-220X MG RESISTOR R 528 NRSA02J-220X MG RESISTOR
R 529 NRSA63J-273X MG RESISTOR
R 530 NRSA63J-473X MG RESISTOR R 531 NRSA63J-222X MG RESISTOR
R 532 NRSA63J-153X MG RESISTOR
R 533 NRSA63J-682X MG RESISTOR R 534 NRSA63J-473X MG RESISTOR
R 541 NRSA63J-472X MG RESISTOR
R 542 NRSA63J-472X MG RESISTOR R 543 NRSA63J-472X MG RESISTOR
R 544 NRSA63J-472X MG RESISTOR
R 545 NRSA63J-103X MG RESISTOR R 546 NRSA63J-103X MG RESISTOR
R 547 NRSA63J-473X MG RESISTOR
R 548 NRSA63J-683X MG RESISTOR R 549 NRSA63J-474X MG RESISTOR
R 550 NRSA63J-333X MG RESISTOR
R 551 NRSA63J-103X MG RESISTOR R 552 NRSA63J-152X MG RESISTOR
R 553 NRSA63J-153X MG RESISTOR
R 554 NRSA63J-332X MG RESISTOR R 555 NRSA63J-332X MG RESISTOR
R 556 NRSA63J-682X MG RESISTOR
R 557 NRSA63J-152X MG RESISTOR R 558 NRS181J-101X MG RESISTOR
R 581 NRSA63J-243X MG RESISTOR
R 582 NRSA63J-223X MG RESISTOR R 583 NRSA63J-223X MG RESISTOR
R 584 NRSA63J-333X MG RESISTOR
R 585 NRSA63J-123X MG RESISTOR R 586 NRSA63J-152X MG RESISTOR
R 591 NRSA63J-243X MG RESISTOR
R 592 NRSA63J-223X MG RESISTOR R 593 NRSA63J-223X MG RESISTOR
R 594 NRSA63J-333X MG RESISTOR
R 595 NRSA63J-123X MG RESISTOR R 596 NRSA63J-152X MG RESISTOR
R 701 NRSA63J-102X MG RESISTOR
R 702 NRSA63J-122X MG RESISTOR R 703 NRSA63J-222X MG RESISTOR
R 704 NRSA63J-222X MG RESISTOR
R 705 NRSA63J-222X MG RESISTOR R 706 NRSA63J-103X MG RESISTOR
R 707 NRSA63J-473X MG RESISTOR
R 708 NRSA63J-473X MG RESISTOR R 709 NRSA63J-472X MG RESISTOR
R 710 NRSA63J-472X MG RESISTOR
R 711 NRSA63J-472X MG RESISTOR R 712 NRSA63J-472X MG RESISTOR
R 713 NRSA63J-103X MG RESISTOR
R 714 NRSA63J-103X MG RESISTOR
Parts number Parts name Ar
Remarks
a
3-9
Page 40
KD-S723R/KD-S721R
Electrical parts list (Main board)
Item
A
R 715 NRSA63J-103X MG RESISTOR
R 716 NRSA63J-103X MG RESISTOR
R 717 NRSA63J-103X MG RESISTOR R 718 NRSA63J-103X MG RESISTOR
R 719 NRSA63J-472X MG RESISTOR
R 720 NRSA63J-472X MG RESISTOR R 721 NRSA63J-472X MG RESISTOR
R 722 NRSA63J-0R0X MG RESISTOR
R 723 NRSA63J-104X MG RESISTOR R 724 NRSA63J-472X MG RESISTOR
R 725 NRSA63J-104X MG RESISTOR
R 726 NRSA63J-473X MG RESISTOR R 727 NRSA63J-473X MG RESISTOR
R 728 NRSA63J-473X MG RESISTOR
R 729 NRSA63J-473X MG RESISTOR R 730 NRSA63J-104X MG RESISTOR
R 731 NRSA63J-104X MG RESISTOR
R 732 NRSA63J-473X MG RESISTOR R 733 NRSA63J-473X MG RESISTOR
R 734 NRSA63J-103X MG RESISTOR
R 736 NRSA63J-103X MG RESISTOR R 737 NRSA63J-473X MG RESISTOR
R 738 NRSA63J-103X MG RESISTOR
R 739 NRSA63J-473X MG RESISTOR R 740 NRSA63J-103X MG RESISTOR
R 742 NRSA63J-473X MG RESISTOR
R 744 NRSA63J-222X MG RESISTOR R 745 NRSA63J-222X MG RESISTOR
R 747 NRSA63J-473X MG RESISTOR
R 781 NRS181J-273X MG RESISTOR R 782 NRS181J-102X MG RESISTOR
R 801 NRSA63J-104X MG RESISTOR
R 802 NRSA63J-104X MG RESISTOR R 803 NRSA63J-104X MG RESISTOR
R 806 NRSA63J-223X MG RESISTOR
R 807 NRSA63J-104X MG RESISTOR R 809 NRSA63J-104X MG RESISTOR
R 891 NRSA63J-473X MG RESISTOR
R 892 NRSA63J-102X MG RESISTOR R 905 NRSA63J-472X MG RESISTOR
R 906 NRSA63J-103X MG RESISTOR
R 907 QRZ0125-470X C RESISTOR 47 1/4W R 911 NRSA63J-100X MG RESISTOR
R 977 NRSA63J-333X MG RESISTOR
R 978 NRSA63J-123X MG RESISTOR TU 1 QAU0222-001 TUNER
X 71 QAX0263-001Z CRYSTAL
X 541 QAX0413-001Z CRYSTAL X 701 QAX0406-002Z CRYSTAL
Parts number Parts name Ar
Block No. 01
Remarks
a
3-10
Page 41
KD-S723R/KD-S721R
e
e
Electrical parts list (Front board)
Item
A
C 601 NCB31HK-223X C CAPACITOR
C 602 NCS31HJ-681X C CAPACITOR
C 603 NBE20JM-106X TS E CAP SVB20J CJ601 VMC0335-001 CONNECTOR
D 601 SML-310DT/KL/-X LED KD-S723R
D 601 LNJ308G81/1-3/X LED KD-S721R D 602 LNJ308G81/1-3/X LED KD-S721R
D 602 SML-310DT/KL/-X LED KD-S723R
D 603 SML-310DT/KL/-X LED KD-S723R D 603 LNJ308G81/1-3/X LED KD-S721R
D 604 LNJ308G81/1-3/X LED KD-S721R
D 604 SML-310DT/KL/-X LED KD-S723R D 605 SML-310DT/KL/-X LED KD-S723R
D 605 LNJ308G81/1-3/X LED KD-S721R
D 606 LNJ308G81/1-3/X LED KD-S721R D 606 SML-310DT/KL/-X LED KD-S723R
D 607 LNJ308G81/1-3/X LED KD-S721R
D 607 SML-310DT/KL/-X LED KD-S723R D 608 LNJ308G81/1-3/X LED KD-S721R
D 608 SML-310DT/KL/-X LED KD-S723R
D 609 LNJ308G81/1-3/X LED KD-S721R D 609 SML-310DT/KL/-X LED KD-S723R
D 610 LNJ308G81/1-3/X LED KD-S721R
D 610 SML-310DT/KL/-X LED KD-S723R D 611 SML-310DT/KL/-X LED KD-S723R
D 611 LNJ308G81/1-3/X LED KD-S721R
D 612 LNJ308G81/1-3/X LED KD-S721R D 612 SML-310DT/KL/-X LED KD-S723R
D 613 SML-310VT/JK/-X LED KD-S721R
D 613 LNJ308G81/1-3/X LED KD-S723R D 614 SML-310DT/KL/-X LED KD-S723R
D 614 LNJ308G81/1-3/X LED KD-S721R
D 615 LNJ308G81/1-3/X LED KD-S721R D 615 SML-310DT/KL/-X LED KD-S723R
D 616 SML-310DT/KL/-X LED KD-S723R
D 616 LNJ308G81/1-3/X LED KD-S721R D 617 LNJ308G81/1-3/X LED KD-S721R
D 617 SML-310DT/KL/-X LED KD-S723R
D 618 SML-310DT/KL/-X LED KD-S723R D 618 LNJ308G81/1-3/X LED KD-S721R
D 619 LNJ308G81/1-3/X LED KD-S721R
D 619 SML-310DT/KL/-X LED KD-S723R D 620 SML-310LT/MN/-X LED
D 641 UDZS5.1B-X ZENER DIODE
D 642 1SS355-X DIODE D 643 1SS355-X DIODE
D 645 UDZS5.1B-X ZENER DIODE
IC601 LC75823W IC PL601 QLL0056-001 PILOT LAMP KD-S721R
PL601 QLL0075-001 PILOT LAMP KD-S723R
PL602 QLL0075-001 PILOT LAMP KD-S723R PL602 QLL0056-001 PILOT LAMP KD-S721R
R 601 NRSA63J-821X MG RESISTOR
R 602 NRSA63J-821X MG RESISTOR R 603 NRSA63J-122X MG RESISTOR
R 604 NRSA63J-182X MG RESISTOR
R 605 NRSA63J-272X MG RESISTOR R 606 NRSA63J-821X MG RESISTOR KD-S723R
R 606 NRSA02J-821X MG RESISTOR KD-S721R
R 607 NRSA02J-821X MG RESISTOR KD-S721R R 607 NRSA63J-821X MG RESISTOR KD-S723R
R 608 NRSA63J-122X MG RESISTOR KD-S723R
R 608 NRSA02J-122X MG RESISTOR KD-S721R
Parts number Parts name Ar
Block No. 02
Remarks
Item
a
A
R 609 NRSA02J-182X MG RESISTOR KD-S721R
R 609 NRSA63J-182X MG RESISTOR KD-S723R
R 610 NRSA63J-272X MG RESISTOR R 611 NRSA63J-392X MG RESISTOR
R 612 NRSA63J-821X MG RESISTOR
R 613 NRSA63J-821X MG RESISTOR R 614 NRSA63J-122X MG RESISTOR
R 615 NRSA63J-182X MG RESISTOR
R 616 NRSA63J-272X MG RESISTOR R 617 NRSA63J-392X MG RESISTOR
R 631 NRSA02J-821X MG RESISTOR
R 632 NRSA02J-821X MG RESISTOR R 633 NRSA02J-821X MG RESISTOR
R 634 NRSA02J-511X MG RESISTOR
R 635 NRSA02J-511X MG RESISTOR R 636 NRSA02J-152X MG RESISTOR KD-S723R
R 636 NRSA02J-122X MG RESISTOR KD-S721R
R 637 NRSA02J-122X MG RESISTOR KD-S721R R 637 NRSA02J-152X MG RESISTOR KD-S723R
R 638 NRSA02J-271X MG RESISTOR KD-S723R
R 638 NRSA02J-221X MG RESISTOR KD-S721R R 639 NRSA02J-221X MG RESISTOR KD-S721R
R 639 NRSA02J-271X MG RESISTOR KD-S723R
R 640 NRSA02J-271X MG RESISTOR KD-S723R R 640 NRSA02J-221X MG RESISTOR KD-S721R
R 641 NRSA02J-221X MG RESISTOR KD-S721R
R 641 NRSA02J-271X MG RESISTOR KD-S723R R 642 NRSA02J-511X MG RESISTOR
R 643 NRSA02J-511X MG RESISTOR
R 644 NRSA02J-821X MG RESISTOR R 645 NRSA02J-821X MG RESISTOR
R 651 NRSA63J-222X MG RESISTOR
R 652 NRSA63J-222X MG RESISTOR R 653 NRSA63J-103X MG RESISTOR
R 654 NRSA63J-103X MG RESISTOR
R 655 NRSA63J-103X MG RESISTOR R 656 NRSA63J-103X MG RESISTOR
R 657 NRSA63J-513X MG RESISTOR
R 658 NRSA63J-184X MG RESISTOR S 601 NSW0066-001X TACT SWITCH POWER
S 602 NSW0066-001X TACT SWITCH VOL-
S 603 NSW0066-001X TACT SWITCH VOL+ S 604 NSW0066-001X TACT SWITCH LOUD
S 605 NSW0066-001X TACT SWITCH DISP
S 606 NSW0066-001X TACT SWITCH 1 S 607 NSW0066-001X TACT SWITCH SELECT
S 608 NSW0066-001X TACT SWITCH 2
S 609 NSW0066-001X TACT SWITCH 3 S 610 NSW0066-001X TACT SWITCH 4
S 611 NSW0066-001X TACT SWITCH 5
S 612 NSW0066-001X TACT SWITCH EJECT S 613 NSW0066-001X TACT SWITCH UP
S 614 NSW0066-001X TACT SWITCH 6
S 615 NSW0066-001X TACT SWITCH MODE S 616 NSW0066-001X TACT SWITCH SCM
S 617 NSW0066-001X TACT SWITCH DOWN
S 618 NSW0066-001X TACT SWITCH AM S 619 NSW0066-001X TACT SWITCH FM
S 620 NSW0066-001X TACT SWITCH CD
Parts number Parts name Ar
Remarks
a
3-11
Page 42
KD-S723R/KD-S721R
Packing materials and accessories parts list
A7
P7
P6
Block No. Block No.
M M
M
5
M
3
P1
E version A2~A6 EX version A1,A3,A5,A6
P8
A16
M M
P8
A14
P1
E version A1
P5 A15
P3
P2 KIT:A8~A12
3-12
A13
P4
Page 43
KD-S723R/KD-S721R
Parts list (Packing)
Item
A
P 1 FSPG4002-001
P 2 QPA00801205 P 3 QPA01003003 P 4 FSYH4036-068 P 5 QPA01003003 P 6 QPC03004315P P 7 GE30407-016A
P 8 GE10036-001A
Parts number Parts name Area
FSPG4002-001
GE30407-015A
Parts list (Accessories)
Item
A
A 1 GET0065-001A A 2 GET0065-002A A 3 GET0065-003A A 4 GET0065-004A A 5 BT-54013-2 A 6 VND3046-001 A 7 LV40978-001A A 8 VKZ4027-202
A 9 VKH4871-001SS A 10 VKZ4328-001 A 11 WNS5000Z A 12 FSKL4010-002 A 13 FSJB3001-30C A 14 FSKM2004-003 A 15 QAM0158-001 A 16 FSJD2034-011
KIT KDGS717K-SCREW1
Parts number Parts name Area
POLY BAG POLY BAG POLY BAG POLY BAG SHEET POLY BAG POLY BAG CARTON CARTON ESP CUSHION
INST.BOOK INST.BOOK INSTALL MANUAL INSTALL MANUAL W.CARD SERIAL TICKET CAUTION SHEET PLUG NUT MOUNT BOLT LOCK NUT WASHER HOOK HARD CASE MOUNTING SLEEVE CAR CABLE TRIM PLATE SCREW PARTS KIT
Q'ty
2
INST.BOOK
1
INST.BOOK
1
KIT
1
HARD CASE 1 1
CAR CABLE 1
SET 1
KD-S723R 1
KD-S721R 2
Q'ty
1
ENG,GER,FRE,DUE 1
SPA,ITA,SWE,RUS 1
ENG,GER,FRE,DUT 1
SPA,ITA,SWE,RUS 1 1 1 1 1 1
FOR M5 1 2 1 1 1 1 1
A8-A12
Block No. M3MM
Description
E EX
Block No. M5MM
Description
E
E
3-13
Page 44
A
B
C
1
2
3
4
5
g m
Pickup
VA, VB , VC, VE VF, MD, LD
CN501
IC521
RF AMP
FEED SPINDLE FOCUS TRACKING LOADING
IC501
BTL
DRIVER
SEL,TEB RF,RFRP FE,SBAD TE,RFGO
LM0, LM1
IC541
DSP & DAC
BUS0~3, BUCK CCE, RST
L-CH R-CH
IC581
CD LPF
CD_L CD_R
IC161
E.VOLUME
L-CH R-CH
TU1
TUNER PACK
OUTFL, OUTFR OUTRL, OUTRR
J1
IC301
POWER AMP.
KD-S723R/KD-S721R
Block dia
ra
CP961
KEY MATRIX
S601~S620
KEY0~2
IC601
LCD
DRIVER
LCD_CE LCD_CL LCD_DA
COM1~3 S1~S48
LCD1
REST, SW1~4
CJ601
KEY0~2 LCD_CE
CP601
LCD_CLK LCD_SO
IC701
CPU
2-1
MUX
RDSDA
RDSSCK
IC71 RDS
DETECTER
REAR L REAR R
LINE OUTPUT
Page 45
KD-S723R/KD-S721R
< MEMO >
2-2
Page 46

Standard schematic diagrams

3
Receiver & System control section
TU1
QAU0222-001
9V CD.R
CD.L REST SW1 SW2 SW3 SW4 LM0 LM1 BUS0 BUS1 BUS2 BUS3 BUCK CCE RST CD8V
CP601
VMC0334-001
J1 QNB0100-002
C31
R31
2.2/50 1k
C32
0.001
Q31
2SD601A
R33
1.5k
R41
C41
0.033
3.3k
C42
0.0082
Q41
2SD601A
GND
DETACH ILL10V
ACC5V
REMOCON
LCDCL LCDDA LCDCE
KEY0 KEY1 KEY2
D706
CH.L
GND
SI CONT+B
CH.R MEM-IN
J801
QNZ0095-001
L1
4.7u
D1 C1 5P
R2 R3
R32
10k
Q32
2SD601A
R43
1k
R42
1k
100/16
Q42
2SC3661
D705
100k
C801
0.01
R803
D2
1SS133
1SS133
C2
C4
220P
1k 1k
C44
0.01
C43
D704
R801
100k
R802
100k R810
100
10p
C5
C6
0.047
0.47/50
Q43
UN2211
MONO IFC SD/ST OSC
AMEO FMEO
Q7
UN2211
R44
33
FM/AM
D41
MA3110
SQ
R51 470
C51
0.47/50
C720
C719
0.1
0.1
D707
10k
R804
IC801
HD74HC126FP-X
R1
0
C7
100p
C10
0.001
Q5
2SB815
R7
4.7k
R8
47k
R52 15k
R54 10k
Q52
2SD601A
C53
Q51
2SD601A
0.1
R53
R55
10k
2.2k
C52
4700p
D703
D702
D701
R808
22k
R806R807
R805
100
100k
100k
C802
0.047 R809
KD-S723R/KD-S721R
C77
R167
1SS355-X
0.022
10k 10k
2SD601A
22k
R168
R170
B174
0
D161
2.2k
R71
2.2k
R72
PS2
R730
100K
R725 100K
47k
R726
47K
R727
47k
R728
47k
R729
Q181
4.7k
IC71
SAA6579T-X
9V
C718
0.01
DETACH
10K
R738
UN2111
Q174
R731
ACC5V
100K
4.7k
R711
SISOSCK
C191R187 1/50
C171
1/50
22k
R188
C173
0.1
Q162
UN2111
C75 560P
C76
2.2/50
2.2k
R73
1SS133
D241
220K
0.015
R241
C241
RST
BUS1
BUS3
BUS0
BUS2
4.7k
4.7k
R710
R709
SDA
R244
C242
12k
0.047
1SS133
R243 100
2SD601A
1k
D242
Q241
R242
C243
22/16
LM0
LM1
CCE
BUCK
2.2K
R745
R744
2.2K
LM1
4.7k
2.2k
R704
R703
2.2k
R712
I/O
SCL
LCDDA
LCDCL
R161
220k
C161
2.2k
SW2
1SS355-X
180k
R245
C244 1/50
22k
SW3
D162
SW4
R181
C911
47/10
220k
D182
1SS355-X
R732
47k
R247
R164 R184
3.3K 3.3K
47k
R746
REST
1/50
47K
SDA
R718
10k
KEY0
CH.L CD.L
CD.R
CH.R
9V
R246
LM0
R705
LCDCE
2.2k
R163
R162
22k
C162
0.0082
C164
0.22/50
1/50
C181
C182
C912
100/10
47K
R733
SCL
TEL_MUTE
R747 47k
R717
R716
10k
10k
10k
R715
KEY1
KEY2
LEVEL
C166
C163
0.0056
0.15 C165
0.033
C184
0.22/50
0.033
C185
C183
0.15
0.0082
C186
0.0056
10
R911
R183
22k
R182
C913
2.2k
100/16
PS2
SW1
R743R742
R723
100k
REMOCON
4.7k
R724
R701
1k
R702
1.2k
47k
R750
RESET
100/6.3
R722
0
QAX0406-002Z
10k
10k
R714
R713
4.7k
R721
4.7k
R720
4.7k
R719
SM
SQ
C168
4.7/50 C167
4.7/50
47k47k
47k
R165R185
Q781
UN2111
47k
R891
UPD178078GF-540
D782
1SS133
1SS355-X
Q891
UN2211
R166
47k
R186
27k
R781
1K
R782
Q782
UN2211
C783
0.082
Q976
UN2211
R902
0
D781
1k
R892
1SS355-X
D891
C891
0.047
IC701
C902
C901
C781 220/6.3
220/10
0.1
Q901
2SB709A
1SS355-X
D892
R901
2.2K
2SB709A
C903 22/16
R332
820
R322
820
1SS355-X
R323
D321
2.2k
D331
1SS355-X
R333
2.2k
IC961
HA13164A
Q977
R901
0
C915
10/16
R902 47k
Q902
UN2213
D784
UDZ11B-X
D901
1SS355-X
2SD104B
Q321
2SD104B
Q331
100
R324
Q783 UN2111
R978
C782
22/16
12K
33K
R977
R904
4.7k
10/16
C905
C904
220/10
R342
R352
1SS355-X
D351
D341
1SS355-X
100
R334
C907
2.2/50
10/16
C906
4.7k 10k
R905 R906
IC161
TEA6320T-X
C188
4.7/50 C187
4.7/50
C933
0.01
C712 68p
L701
4.7u
47k47k
C706
C704
0.1
R708 47k
R707 47k
CD8V ILL10V
C708
CONT+B
100/6.3
ACC5V
C707
0.01
VPP
R737
47k
R740
47k
X1
X701
S701
R753
100
TEL_MUTE
FMEO AMEO
C776
C713
0.01
470p
OSC
IFC
R739
47k
SD/ST
C701
22p
C702 22p
C703
0.1
MEM-IN
C709
0.01
IC301
LA4743K
R353
2.2k
47( 1/4W)
0.047
C351
2.2/50
2.2/50
C331
C914
4.7/25
390P
390P
0.022
C317
100
R344
J301
QNN0175-001
C313
47/16
C393
C310
10/16
0.1
C394
0.1
D911
1N5401-TU
C908
2200/16
L961 QQR0703-001
D912
C909
0.1 CRS03-W
QMFZ047-150-T
CP961
QNZ0112-001
0.022
C316
C315
100/16
22/16
C309
C392
0.1
C391
0.1
CRS03
D994 D993
CRS03
D992
CRS03
D991
CRS03 CRS03
D997
CRS03
D998
D995
CRS03 CRS03
D996
100p
C304
100p
C303
100p
C302
100p
C301
100p
C307
100p
C308
100p
C305
100p
C306
QAM0158-001
C332
C352
390P
390P
C341
2.2/50
C342
C322
C321
2.2/50
R310
4.7k
Q351
2SD1048
100
R354
R907
D910
CRS03-W
C312
C311
0.047
R351
27k
R331
27k
R341
27k
R321
27k
1k 1k
R343
2.2k
Q341
2SD1048
Parts are safety assurance parts. When replacing those parts make sure to use the specified one.
Tuner signal CD signal Front signal
Rear signal
COMP.OUT
1/50
C189
1/50
C169
C192
220/10
8.2( 1/8W)
9V
Q2
C3
2SD601A
0.1/50
0.018
SK/STP
Q161 2SD601A
R5
4.7k
4.7k
R169
Q3
UN2111
C74
47/10
C73
0.01
C72
47P
X71
QAX0263-001
C71 82P
AFCK
LEVEL
SK/STP
R706
10K
C721
0.1 VDD
C770
0.01
VSS
UN2211
Q1
0.018
C172
C8
0.01
R4 22k
Q4
2SB709A
D3
D4
1SS355-X
R9
3.3k
Q751
UN2211
R56 47k
C54
0.01
C55
330p
47k
R57
MONO SEEK/STP FM/AM AFCK
SI
SO
I/O
100k
SCK
R751
R6
1SS355-X
10k
C9
47k
0
*B51
R10
R58 47k
Q53
UN2211
SM
SEEK/STP
2-
Page 47
Mecha control circuit section
KD-S723R/KD-S721RKD-S723R/KD-S721R
LD VCC
SW4 VF SW3 VB SW1 VA SW2 VE GND VC LOADING-
LOADING+ MD REST VREF SPINDLE+ FOCUS­SPINDLE­FOCUS+
FEED+ TRACKING+ FEED­TRACKING-
QGB2027M1-26S
R508
LM0
LM1
R504
20k
LD VCC SW4
VF SW3
VB SW1
VA SW2
VE
VC
LOADING-
LOADING+
MD
REST
VREF
SPINDLE+
FOCUS-
SPINDLE-
FOCUS+
FEED+
TRACKING+
FEED-
CN501
TRACKING-
VREF
C521
0.01
VCC
C522
0.01
R521
VC
R522
VA
R523
VB
R524
VE
R525
VF
R526 MD LD
LOADING+
LOADING-
TRACKING-
TRACKING+
FOCUS-
FOCUS+
R533
56p
C533
47k 47k
47k 47k 100k 100k
6.8k
R532 R531
R534
15k 2.2k
47k
C523
0.01
C524
100/6.3
FO
SP
0.01
220/10
R501
8.2k
C501
C502
IC501
LA6567
SPINDLE+
SPINDLE-
FEED+
FEED-
FD
RF
RFGC
RFRP
TP1
RF
0.1
0.1
C531
C532
SEL
C526
100/6.3
R528
C525
0.01
Q521 2SB1322
R527
Q501
C503
2SB1322
22/16
R502
5.6k
R503
2.4k
FE
SBAD
TP2
VREF
0.01
C529
C530
100/6.3
47k
R530
IC521
TA2109F
27k
100p
C527
100/6.3
C528
R529
TEB
TE
22
22
20k
R507
8.2k
D501 DSK10C
D502
R506
DSK10C
0
C569
C567
C568
C570
L541
4.7u
100
R558
C571
100/6.3
C572
C573
L542
4.7u
4.7k
4.7k
4.7k
4.7k
R545
R541
R542
R543
R544
10k
100/6.3
C541
0.01
C542
100p
100/6.3
GND
100/6.3
R-CH
0.01 L-CH
BUCK
BUS0
CCE
BUS1 BUS2 BUS3
RST
C543 1/50
C565
10p
10p
0.01
0.01
X541 C566
QAX0413-001
R581
R-CH
24K
R591
L-CH
24K
C564
C563
C545
0.01
C544
100/6.3
4.7/25
C582
C581 820P
C591 820P
0.01
100/6.3
22K22K
22K22K
R582R583
R592R593
C583
C593
47/6.3
47/6.3
4.7/25
C592
C562 C561
SEL
TEB
C560
6.8k
3.3k
1.5k
R555
R556
R557
R549
R548
R546 R547
10k 47k
C546
100/6.3
R584 R585
12K
R595
33K
R594
0.047
0.047
0.047
C559
0.047
R554
3.3k
15k
R553
1.5k
R552
C555
R551
0.01
C552
2700p
C551
0.01
C550
R550
C548
33k
0.015
IC541
470k
TC9462F
68k
47p
C547
R586
33K
1.5K
12K
C584 120P
IC581
NJM4565M
C595
100/10
C594 120P
R596
1.5K
RFGC
C558
C557 560p
100/6.3
C556
3300p
0.033
10k
TE
SBAD
FE
RFRP
C554
0.01
C553 100/6.3
RF
C549
100/6.3
9V
CD.R
GND CD.L REST
SW1
SW2
SW3
SW4
LM0
LM1 BUS0 BUS1 BUS2 BUS3 BUCK
CCE
RST
CD8V
GND
Digital signal Analog signal
-
Page 48
LCD driver & Operation switch section
A
5
LCD1
QLD0210-002
S2
S1
S3S4S5
S6
KD-S723R/KD-S721R
IC602
RPM6938-SV4
C611
0.012
UDZS5.1B-X
D644
10k
S7
S8
S9
S10
S11
S17
S18
S19
S16
S12
S13
S14
S20
S15
S21
S25
S22
S28
S24
S27
S26
S23
S29
S31
S30
S32
S33
S36
S35
S38
S34
S37
S44
S39
S45
S40
S46
S43
S47
S42
S41
S48
COM3
COM1
COM2
R661
C612
4.7/6.3 R662
470
VMC0335-001
ILL10V ACC5V REMOCON
CJ601
3.9K 2.7K 1.8K 1.2K
R616
R615
S618S619
R617
3.9K 1.2K 8201.8K2.7K
S620
1.2K1.8K2.7K
S603
S609S610S611S612S613
R614 R613
BUS3
IC601
LC75823W
R601R602R603R604R605
820
820
S602S604S605S606
R606R607R611 R610 R609 R608
820
820
S608
R612
S615S616S617
KEY0
S601
KEY1
S607
KEY2
820
S614
820
R645
D601
D602
820
R644
510
R643
D603
D604
D605
510
R642
220
R641
D606
D607
D608
D609
220
R640
220
R639
D610
D611
D612
D614
220
R638
1.5k
R637
D613
1.5k
R636
510
R635
D615
D616
D617
510
R634
2.2k
R651
2.2k
LCDCE LCDCL LCDDA
10/6.3
C603
R652
R653 R654 R655 R656
D642 D643
R658
10k 10k
10k 10k
1SS355-X 1SS355-X
180k
D641
UDZS5.1B-X
C601
0.022
680P
C602
51k
R657
SML-310LT/MN/-X
D618
D620
D619
820
R633
820
R632
820
R631
PL601
D645
UDZS5.1B-X
PL602
BUS1
BUS2
LCDCL LCDDA LCDCE KEY0 KEY1 KEY2 GND
2-
Page 49
6

Printed circuit boards

KD-S723R/KD-S721RKD-S723R/KD-S721R
Main board(Forward side)
CP961
IC301
C309
C550
C556
C551 C552 R551 C555
R552 R553 C557
C301
J302
C530
C391
C322
C310
C527
Q521
C392 C393 C394
C302
D991
D992
D993
C332
C342
C317
C914
R527
R528
C525
12
13
IC521
R547
C547
R530
R546
R548
R550
C548
R549
C549 C553
C558
D994
R310
C891
C304
C303
C305
C307
C308
C306
C316
D995
D996
C352
Q782
R782
R781
C782
C526
R526
1
C523 R534
C544
24
C546
30
31
.
.
.
50
..
51
R554
C559 C560
R555
C563
D997
D782
IC541
C341
D998
Q783
CN501
C524
C545
.
C783
C543
D891
Q891
D892
C331
C321
Q977
Q781
D781
C781
Q501
C503
R502
R545
1
....
.
.
.
80
R504
C569
R977
R892
R503
15
Main board(Reverse side)
R331
R246
R907
R583
IC961
R906
R247
R592
D501
R582
D711
C903
C501
C583
D911
C593
R593
R905
C908
C582
D502
C907
L961
C714
C572
C592
C502
R506
C909
D912
TEL-MUTE
B310
B314
B313
B315B316
C351
C321
C781
C521
26
25
R501
Q501
C503
L541
R558
C570 C568
C543
C542
B324
C569
C565
L542
C541
C573
C571
C567
X541
C566
S701
SW5VMEM.DET
ACC.IN
ANTCTRL
C901
C187
LM0
MEM.IN
R243
R801
C167
ACC.5V
R242
C595
VDD.5V
D901
C244
REMOTE
NC
R321 R341
C915
C904
R351
CTRL
AJ
R726 R727
B904
C933
B732
B318
R164
D241
R166
GND
ILM.10V
A.9V
J801
CD.8V
C905
C902
B903
C188
C168
C243
D242
L701
LM1
VDD
R728 R729
R721
R719
VSS
IC801
T1B
J301
C311
IC961
R904
R542
C903
D501
R541
C501
R586
R245
C244
R805
C167
C904
R594 R595 C594
C802
C915
R809
R807 R806
R244
Q241
R808
R706
C901
C595
R725 R730 R738
R596
C187
D242
R731
R804
R802
R745
C243
R744
R803
J801
C905
C188
C168
IC161
C242
D241
L701
80
.
81
.
IC701
.
.
100
.....
1
C770
R710
R709
R711
R704
R703
R712
R705
S1B
GEB10007A
R810
D910
L961
D911
R891
C351
R978
IC501
14
L541
100
.
.
R591
.
81
C571
C907
R907
C908
R902
R901
Q976
D502
1
28
B501 R507
L542
R508
R544
R543
C593
C541
C592
C591
R581
IC581
C584
R585
C581
R584
C582
C583
X541
C572
S701
Q321
R323
C184
C913
32
1
C165
C164
B731
R742
R743
R723
R747
R746
.
.
.
.
30
R717
R716
R718
D161
B706
D162
51
31 R707
D321
X701
CP601
50
Q162
Q331
R343
R333
D331
C912
C181
C911
C9
17
B52
16
C31
R43
C161
Q32
C171
D182
R33
R168
C706
Q161
B733
C191
R708
R169
R739
R170
Q52
R51
C10
R713
C53
C51
R55
C52
C708
Q2
Q3
.
.
C704
.
C703
C3
R5
J301
Q351
Q341
R353
D351
D341
L1
C42
C43
D41
R32
C760
Q5
R8
C169
C189
R188
Q181
R53
Q51
C54 R57 R4 C55
R714
C74
X71
J1
D1
D2
C5
TU1
C76
IC71
D1
D2
FMVT AMVCC
FM/AMOSC FMVCC
Q4
R6
L-CH
C5
R-CH
Q751
SEEK/STOP S.METER
C77
COMP.OUT
MUTE
TU1
AMVT
R751
J1
C1
C4
C44
C172
C192
C8
AMANT FMANT
C2
C7
SD/ST
VCC
C76
L1
NC NC
R2
Q43
C6
GND
VCC
GND
GND
NC
SNC
R7
C75
R73
C312
R334
R182
C706
R753
R52
REMO
D707
C162
C912
R44
C3
R332
C183
R162
RESET
ENC.1
R686
R740
R322
R183
VPP
X1
ENC.2
R685
CP601
NC
C186
X701
C163
R324
C801
R185
C184
R165
R186
C913
R911
C185
C718
B317
R163
C166
C241
R241
R161
D701
R733 R184 R732
R702
R701
R724 R715
SI
SCK
R736
SO
R734
R720
D706
D705
C721
KEY0
D704
GND
CE
KEY1
KEY2
D703
D702
R750
R737
C776
R722
C701 C702
NC
DATA
SCK
D709
D708
R354
R342
R352
R344
B901
C911
C181
C182
C41
R41
C9
R181
R10
Q41
C43
R42
Q42
C31
R31
C32
R3
R1
D4 D3
C169
C189
R58
Q53
Q7
R72
C73
C72
X71
C71
C720
C164
Q31
C161
C171
R9
C713
R167
C191
C173
B174
Q174
R187
R56
C51
R54
C708
B51
C707
Q1
C74
D710
R71
DET.
5V
10V
C719
B309
C331
C563
B308
C526
B305
B306
B307
CP961
C546
R557
R556
R524
R533
GND
ACCREM
C309
VREF
C310
C529
TP2
RF
23
IC301
TP1
C527
C530
C313
J302
1
C315
B302
B303
C316
C317
C914
C522
2
1
CN501
C528
R525
R529
C533
C531
Q521
C532
C549
C553
C554
C558
C561
C562
MEM
C341
D782
C782
D784
R521R522
C524
R523
R532
C544
R531
C564
Front board(Forward side)
D620
S601
S604
D603
D601
S603
R601
S602
D602
S1A
R603
R602
D605
R605
GEB10036A
R604
D604
S607
R606
PL602
S605
IC602
LCD1
3
D606
2
S606
1
S608
D607
R607
D608
S609
D609
R608 R609
S610
S619
D614
S612
D615
R610
S620
R638 R639
R637 R636
PL601
D610
S611
D611
S614
R612
D612
S615
D613
R613
R611
R616 R617
R614
D618
S613
S617
D619
D616
,
R615 D617
S618
S616
2-
Front board(Reverse side)
C603
R658 D643 D642
C601
D641
CJ601
R657 C602 R652 R651
2
1
PL601
R654 R655 R656
R653
D645
GEB10036A
R632
R634
R633
R635
32
33
48
14
15
49
64
IC601
17
16
1
PL602
IC602
T1A
R641 R640
R631
R645
C612
C611
R644 R643
R642
R662
3
R661
2
D644
1
H
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