JVC KD-LX111R User manual

SERVICE MANUAL
CD RECEIVER
No.49714
Jun. 2002
COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD.
KD-LX111R
KD-LX111R
KD-LX111R
10
7 8
9
11
12
OFF
STDM
ATT
SOURCE
Contents
Safety precaution
Preventing static electricity
Disassembly method
Adjustment method
1-2
1-3
1-4
1-13
Flow of functional
operation unitl TOC read
Maintenance of laser pickup
Replacement of laser pickup
Description of major ICs
1-14
1-16
1-16
1-17~31
Area suffix
E ----------- Continental Europe
EX --------------- Central Europe

KD-LX111R
1-2
!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.
Safety precaution
!Please use enough caution not to see the beam directly or touch it in case of an
adjustment or operation check.

KD-LX111R
1-3
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.
Grounding to prevent damage by static electricity
Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as mechanism unit.
Be careful to use proper grounding in the area where repairs are being performed.
1. Ground the workbench
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.
2. Ground yourself
Use an anti-static wrist strap to release any static electricity built up in your body.
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.
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
(caption)
Anti-static wrist strap
Conductive material
(conductive sheet) or iron plate
Front bracket
CD mechanism
control board
Damper bracket
CD mechanism ass’y
FD screw
Feed motor ass’y
FD gear Pickup unit
Soldering

KD-LX111R
1-4
Remove the two screws Aattaching the bottom
cover to the top chassis on the bottom of the body.
Remove the two screws Battaching the top chassis
on both sides of the body.
Remove the two screws Cand the two screw D
attaching the heat sink on the left side of the body.
Remove the two screws Eand the screw Fon the
back of the body.
Remove the two screws Gon the upper side of the
body.
Move the top chassis upward and disconnect the CD
mechanism connector from the main board
connector by pulling it. Remove the top chassis from
the body.
1.
2.
3.
4.
5.
6.
Disassembly method
Removing the top chassis
(See Fig.1 to 5)
<Main body>
Fig.1
Fig.2
Fig.3
Fig.4
Fig.5
Bottom cover
A
A
B
Top chassis
Top chassis
Heat sink
C
B
EFTop chassis
G
G
D

KD-LX111R
1-5
Prior to performing the following procedure, remove
the top chassis assembly.
Disconnect the flexible harness from connector
CN701 on the main board assembly.
Remove the four screws Hattaching the front panel
assembly on both sides of the body. Remove the
front panel toward the front.
1.
2.
Removing the front panel assembly
(See Fig.6 to 8)
Prior to performing the following procedure, remove
the top chassis assembly and the front panel
assembly.
Remove the four screws Iattaching the front board
on the back of the front panel assembly and release
the eight joints a.
1.
Removing the Front Board (See Fig.9)
Fig.6
Fig.8
Fig.7
Fig.9
Front panel assembly
Front panel assembly
H
H
Front panel assembly
I
I
Joints a
Joints a
CN701
CN701

KD-LX111R
1-6
Prior to performing the following procedure, remove
the top chassis assembly and the front panel
assembly.
Disconnect the harness from connector CN503and
CN504 on the main board.
Remove the four screws J and detach the lifter unit
from the bottom cover.
1.
2.
Removing the lifter unit (See Fig.10)
Prior to performing the following procedure, remove
the lifter unit.
Remove the washer attaching the clutch assembly
and detach the clutch assembly from the shaft of the
lifter unit.
Remove the two screws Kattaching the feed motor
(L).
1.
2.
Removing the feed motor (L) (See Fig.11)
Prior to performing the following procedure, remove
the lifter unit.
Remove the washer attaching the clutch assembly
and detach the clutch assembly from the shaft of the
lifter unit.
Remove the two screws Lattaching the feed motor
(R).
1.
2.
Removing the feed motor (R) (See Fig.12) Clutch assembly
Fig.10
J
Lifter unit assembly
CN504
CN503
J
Fig.11
Fig.12
Lifter unit assembly
Feed motor (L) assembly
Washer K
L
Clutch assembly
Washer
Feed motor (R) assembly
Lifter unit assembly

KD-LX111R
1-7
Prior to performing the following procedure, remove
the top chassis assembly, the front panel assembly
and the lifer unit.
Disconnect the card wire from connector CN702 on
the main board and remove the operation assembly.
Remove the three screws Mattaching the right and
left brackets which fix gears on both sides of the
operation assembly.
Remove the springs 5 and 6 from the operation
assembly.
1.
2.
3.
Removing the operation assembly
(See Fig.13 to 16)
When reassembling, correctly engage
the switch S651 and S652 on the
main board and the right gear with
the part bof the operation assembly.
ATTENTION:
Fig.13
Fig.14
Fig.15Fig.16
M
Spring 6
CN702
Operation assembly
Spring 5
M
Operation assembly b
S652
S651
Operation assembly
b
Operation assembly b
S652 S651
Bracket (L)
Bracket (R)
Bracket (R)

KD-LX111R
1-8
Prior to performing the following procedure, remove
the operation assembly.
Remove the six screws Nattaching the button panel
on the operation assembly.
Pull out the operation switch board from inside of the
button panel.
1.
2.
Removing the operation switch board
(See Fig.17 and 18)
Prior to performing the following procedure, remove
the top chassis.
Remove the three screws Oand the CD mechanism
assembly from the top chassis.
1.
Removing the CD mechanism assembly
(See Fig.19)
Button panel
Operation switch board
Button panel
CD mechanism assembly
Fig.17
Fig.18
Fig.19
NN
O
OO

KD-LX111R
1-9
Prior to performing the following procedure, remove
the top chassis.
Disconnect the flexible harness from connector
CN701, the card wire from CN702 on the main board
and the harness from CN503 and CN504
respectively.
Remove the three screws Pattaching the main
board assembly to the bottom cover on the upper
side of the body.
Remove the screw Qattaching the rear panel and
the bottom cover on the back of the body. Move the
main board in the direction of the arrow and release
the two joints c. (At this point, the main board can be
removed with the rear panel and the rear heat sink.)
Remove the three screws Rattaching the rear heat
sink on the back of the body.
Remove the two screws Sand the screw T
attaching the rear panel. Now, the main board
assembly will be removed.
1.
2.
3.
4.
5.
Removing the main board assembly
(See Fig.20 to 22)
When reassembling, correctly engage
the switch S651 and S652 on the
main board and the right gear with
the part bof the operation assembly
(Refer to Fig.21).
ATTENTION:
Fig.20
Fig.22
Fig.21
P
CN504
CN701
Front panel assembly
CN702
CN503
P
S652
Main board
S651
R
QR
S
T
Rear panel Rear heat sink
S
Joint c
Joint c
b

KD-LX111R
1-10
1.
2.
3.
4.
5.
6.
Remove the screw Aand the pickup cover attached
to the front bracket with the double-sided tapes.
Unsolder the three parts a, band con the CD
mechanism control board.
Remove the stator fixing the CD mechanism control
board and the damper bracket (To remove the stator
smoothly, pick up the center part).
Remove the screw Battaching the CD mechanism
control board.
Remove the CD mechanism control board in the
direction of the arrow while releasing it from the two
damper bracket slots dand the front bracket slot e.
Disconnect the flexible wire from connector on the
pickup unit.
Removing the CD mechanism control
board (See Fig.1 and 2)
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).
ATTENTION:
Prior to performing the following procedure, remove
the CD mechanism control board and the pickup
cover.
Remove the two springs fattaching the CD mechanism
assembly and the front bracket.
Remove the two screws Cand the front bracket
while pulling the flame outward.
Remove the belt and the screw Dfrom the loading
motor.
1.
2.
3.
Removing the loading motor
(See Fig.3 to 5)
<CD mechanism section>
Fig.1
Fig.2
Fig.3
Fig.4
Front bracket
CD mechanism
control board
Shift the lock
Flexible wire
Pickup unit
FD gear
CD mechanism control board
Loading motor Front bracket
Front bracket Pull outward
Pull outward
Flame
Damper bracket
d
a
EE
E
B
e
Spring f
C
Spring f
C
Double-sided tape
Pickup cover
A
c
b

KD-LX111R
1-11
Prior to performing the following procedure, remove
the CD mechanism control board and the front
bracket (loading motor).
Remove the three screws Eand the damper
bracket.
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.
Remove the CD mechanism assembly and the two
springs hattaching the flame.
Remove the two screws Fand both sides rear
damper brackets from the dampers. Detach the CD
mechanism assembly from the left side to the right
side.
1.
2.
3.
4.
Removing the CD mechanism assembly
(See Fig.1, 6 to 9)
The CD mechanism assembly can be
removed if only the rear damper
bracket on the left side is removed.
ATTENTION:
Fig.5
Fig.6
Fig.7
Fig.8
Fig.9
Rear damper bracket
Fix arm (R)
Damper
EE
Damper bracket
CD mechanism assembly
Flame
Spring h
E
E
Fix plate (L)
Shaft g
Shaft g
Rear damper bracket
Fix arm (L)
Damper
F
Fix plate(R)
F
Shaft g
Shaft g
D
Loading motor
Belt
Spring h

KD-LX111R
1-12
Prior to performing the following procedure, remove
the CD mechanism control board, the front bracket
(loading motor) and the CD mechanism assembly.
Remove the two screws Gand the feed motor
assembly.
1.
Removing the feed motor assmbly
(See Fig.10)
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.
Detach the FD gear part of the pickup unit upward.
Then remove the pickup unit while pulling out the
part jof the FD screw.
1.
Remove the screw Hattaching the nut push spring
plate and the pickup mount nut from the pickup unit.
Pull out the FD screw.
2.
Removing the pickup unit
(See Fig.10 and 11)
When reattaching the pickup unit,
reattach the part iof the pickup unit,
then the part jof the FD screw.
ATTENTION:
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.
Turn up the CD mechanism assembly and remove
the two springs kon both sides of the clamper arms.
Open the clamper arm upward.
Turn the turn table and remove the two screws Iand
the spindle motor.
1.
2.
Removing the spindle motor
(See Fig.12 and 13)
Fig.10
Fig.11
Fig.12
Fig.13
Spindle motor
Spring k Spring k
Pickup unit
Part j
FD screw
Feed motor assembly
FD gear Pickup unit
Part i
G
Nut push spring plate
Pickup mount nut
Pickup unit
FD screw
H
I
I

KD-LX111R
1-13
Adjustment method
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 20Kohm(2 Speakers connection)
Output Level Line out 2.0V (Vol. MAX)
How to connect the extension cable for adjusting
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.
Standard volume position
Balance and Bass &Treble volume : lndication"0"
Loudness : OFF
BBE : OFF
Frequency Band
FM 87.5MHz ~ 108.0MHz
MW 144 ~ 279kHz, 520kHz ~ 1620 kHz
EXTGS004-26P
EXTLX001-2P
EXTLX001-6PC
EXTLX001-6PF
EXTLX001-16PF
EXTLX002-4P
EXTLX002-SWPWB
EXTLX002-16PC
EXTLX001-2P

KD-LX111R
1-14
Power ON
Set Function to CD
Play
Jump to the first track
TOC readout
Tracking loop closed
Disc rotates
Disc inserted
YES
YES
Laser emitted
Pickup feed to the inner area
Focus search
RF signal eye-pattern
opens
RF signal eye-pattern
remains closed
"No disc"
display
When correctly focused
Focus Servo Loop ON
When the laser diode correctly
emits
Microprocessor
commands
Rough Servo Mode
CLV Servo Mode
(ProgramArea)
CLV Servo Mode
(Lead-In Area;
Digital: 0)
RF signal
Flow of functional operation until TOC read
When the pickup correctly moves
to the inner area of the disc
TERMINAL
Microprocessor
commands
FMO
TC9462 "53"
FEED MOTOR
+TERMINAL
IC581 "5"
REST SW
When the disc correctly rotates
Tracking Servo Loop ON
Servo CLV
Rough
Servo
Acceler
Acceler
ation
ation
Acceleration
Microprocessor
commands
Spindle
motor (-)
IC581 "7"
0.5 Sec 0.5 Sec

KD-LX111R
1-15
Feed Section
Focus Section
Tracking Section
Spindle Section
Is the voltage output at
IC521 pin "53" 5V or 0V?
Check the feed motor.
Is 4V present at both
sides of the feed motor?
Is the wiring for IC521
(90) ~ (100) correct?
Check IC581.
Is 6V or 2V present at
IC581 "5" and "6"?
Is 5V present at IC581
pin "11"?
Check the feed motor
connection wiring.
Check the vicinity of
IC521.
Check CD 9V
and 5V.
YES
YES
YES
NONO
NO
NO
NO
YES
YES
When the lens is
moving:
Check the circuits in
the vicinity of IC581
pins "15" ~ "18".
Check the pickup and
its connections.
NO
YES
YES
YES
Does the S-search
waveform appear at
IC581 pins "17" and "18"?
Is the disk rotated?
Does the RF signal
appear at TP1?
Is 4V present at IC581
pins "7" and "8" ?
Check the spindle motor
and its wiring.
Is 4V present at IC521
pin "55" ?
Check the vicinity of
IC581.
Check IC501 and
IC521.
YES
NO
NO
NO
NO NO
YES
YES
YES
Check the circuits in the
vicinity of IC501 "19" ~
"24" or the pickup
Is the RF waveform at TP1
distorted?
Proceed to the Tracking
section
When the disc is rotated
at first:
Check the circuit in the
vicinity of IC501 pins
"2" ~ "12".
Check IC521.
Check the pickup and
its connections.
YESYES
YES
Is the tracking error signal
output at IC501 "12"?
Approx. 1.2 V
4V

KD-LX111R
1-16
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.
Replacement of laser pickup
Is RF output
1.0 0.35Vp-p? Replace it.
NO
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.
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.
Play a disc.
Check the eye-pattern at TP1.
Finish.

KD-LX111R
1-17
FAN8037 (IC581) : CD driver
1. Pin layout & Block diagram
2. Pin function
30
29
28
27
26
25
36
35
34
33
32
31
1
2
3
4
5
6
7
8
9
10
11
12
13 14 15 16 17 18 19 20 21 22 23 24
48 47 46 45 44 43 42 41 40 39 38 37
s
w
s
w
s
w
M
S
C
M
S
C
M
S
C
D
D
D
D
D
D
T. S . D
STAND BY
ALL MUTE
POWER SAVE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
I
I
O
I
I
O
I
I
O
I
I
I
I
I
I
-
I
I
I
I
I
I
-
O
CH2 op-amp input(+)
CH2 op-amp input(-)
CH2 op-amp output
CH3 op-amp input(+)
Ch3 op-amp input(-)
CH3 op-amp output
CH4 op-amp input(+)
CH4 op-amp input(-)
CH4 op-amp output(+)
CH5 motor speed control
CH5 forward input
CH5 reverse input
CH6 motor speed control
CH6 forward input
CH6 reverse input
Signal ground
CH7 forward input
CH7 reverse input
CH7 motor speed control
Stand by
Power save
All mute
Power supply voltage
CH7 drive output(-)
IN2+
IN2-
OUT2
IN3+
IN3-
OUT3
IN4+
IN4-
OUT4
CTL1
FWD1
REV1
CTL2
FWD2
REV2
SGND
FWD3
REV3
CTL3
SB
PS
MUTE
PVCC2
DO7-
Pin
No.
Symbol I/O Function
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
O
O
O
-
O
O
O
O
O
O
-
O
O
O
O
-
I
O
I
I
-
I
I
O
CH7 drive output(+)
CH6 drive output(-)
CH6 drive output(+)
Power ground2
CH5 drive output(-)
CH5 drive output(+)
CH4 drive output(-)
CH4 drive output(+)
CH3 drive output(-)
CH3 drive output(+)
Power ground1
CH2 drive output(-)
CH2 drive output(+)
CH1 drive output(-)
CH1 drive output(+)
Power supply voltage
Regulator feedback input
Regulator output
Regulator reset input
Bias voltage input
Signal supply voltage
CH1 op-amp input(+)
CH1 op-amp input(-)
CH1 op-amp output
DO7+
DO6-
DO6+
PGND2
DO5-
DO5+
DO4-
DO4+
DO3-
DO3+
PGND1
DO2-
DO2+
DO1-
DO1+
PVCC1
REGOX
REGX
RESX
VREF
SVCC
IN1+
IN1-
OUT1
Pin
No.
Symbol I/O Function
Description of major ICs

KD-LX111R
1-18
UPD784217AGC168 (IC701) : Main micon
1.Pin layout
2.Pin functions(1/3)
1
~
25
75
~
51
100 ~ 76
26 ~ 50
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
I/O
I
I
I
I
O
O
O
O
-
-
-
-
-
-
I
I
I
I
I
I
I
I
-
-
I
I
I
I
I
I
I
I
-
O
O
-
I
O
I/O
I
O
O
Function
CD mechanical switch 2 detection signal input
CD mechanical switch 3 detection signal input
CD mechanical switch 4 detection signal input
Rest switch detection signal input
Motor signal control signal output at loading
Motor signal control signal output at leject
DIMMER pulse control output
POWER ON:H,FLAT PANEL:L
5V
GND
Reset detection teaminal
CD mechanical switch 1 detection signal input
J-BUS int
POWER SAVE2. Operating together with BACKUP.H input:STOP
Pulse signal for CRUISE input(only in 330R)
RDS clock input
RDS data input
Remocon input(111R:READY)
5V
5V
Temperature detection input
Key input 0
Key input 1
Key input 2
Level meter input
MRC output voltage detection
S.QUALITY level input
S.METER level input
GND
Subwoofer volume control analog output
Dot matrix contrast adjustment analog output
5V
J-BUS data input
J-BUS data output
J-BUS clock input and output
H:LX333R L:LX111R
Data output to LCD driver
Clock output to LCD driver
Symbol
SW2
SW3
SW4
RST-SW
LMO
LM1
DIM-OUT
ILLUM1
VDD
X2
X1
VSS
XT2
XT1
RESET
SW1
BUS-INT
PS2
CRUISE
RDS-SCK
RDS DA
REMOCON
AVDD
AVREFO
TEM1
KEY0
KEY1
KEY2
LEVEL
MRC
SQ
SM
AVSS
W-VOL
DOT-CNT
AVREF
BUS-SI
BUS-SO
BUS-SCK
STAGE2
LCD-DA
LCD-SCK

KD-LX111R
1-19
2.Pin functions(2/3)
Pin No.
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
I/O
O
O
I
O
O
O
O
O
O
O
I
O
O
I
I
I
I
I
I
I
O
O
-
O
O
O
I
I
O
-
I
I
O
O
O
O
O
O
-
O
O
O
O
O
-
O
O
-
O
O
O
Function
Chip enable output 1 to LCD driver
Buzzer output
12C communication data input
12C communication data output
12C communication clock output
J-BUSI/O signal terminal
Tray motor negative signal output terminal
Tray motor positive signal output terminal
Motor control signal output in door down
Motor control signal output in door up
Stereo signal input L:Stereo
AF check output AF check:L
Chameleon machanical switch 1 detection signal input
Chameleon machanical switch 2 detection signal input
Chameleon machanical switch 3 detection signal input
Chameleon machanical switch 4 detection signal input
Chameleon machanical switch 5 detection signal input
Rotary volume signal 1 input
Rotary volume signal 2 input
Auto seek/stop selection output SEEK:L STOP:H
FM/AM selection output FM:H AM:L
IC control CE output
IC control data output
IC control clock output
IC control data input
Telephone mute detection input
POWER AMP ON/OFF selection output
GND
Dimmer detection input L:dimmer ON
Power save 1 Operating together with ACC.Power save :L Operating :H
Power ON/OFF selection output Power ON:H
CD power supply control signal output CD:H
Mute output MUTEON:L
Subwoofer cut off frequency control output 1
Subwoofer cut off frequency control output 2
Subwoofer mute output MUTE ON:H
5V
data output terminal
clock signal output terminal
FM band filter selection signal output
CD-DA/CD-RW selection control output CD-RW:L
Reset signal output to LCD driver
Door motor kick signal output
Tray motor kick signal output
Data cmmunication clock output with CDLSI
Data cmmunication clock CE with CDLSI
CDLSI reset signal output
GND
Symbol
LCD-CE1
BUZZER
12C-DAI
12C-DAO
12C-CLK
BUS-I/O
TMO
TM1
DMO
DM1
ST
NC
AFCK
C-SW1
C-SW2
C-SW3
C-SW4
C-SW5
VOL1
VOL2
SEEK/STP
NC
FM/AM
PLL-CE
PLL-DO
PLL-CLK
PLL-DI
TEL-MUTE
AMP-KILL
VSS
DIM -IN
PS1
POWER
CD-ON
MUTE
W-LPF1
W-LPF2
W-MUTE
VDD
VOL-DA
VOL-CLK
CF-SEL
GVSW
LCD RST
NC
DMK
TMK
NC
BUCK
CCE
RST
TEST

KD-LX111R
1-20
2.Pin functions(3/3)
Pin No.
95
96
97
98
99
100
I/O
I/O
I/O
I/O
I/O
I
O
Function
Data communication input and output port 0 with CDLSI
Data communication input and output port 1 with CDLSI
Data communication input and output port 2 with CDLSI
Data communication input and output port 3 with CDLSI
H:not for 8cm DISC L:for 8cm DISC
Symbol
BUSO
BUS1
BUS2
BUS3
DISCSEL
NC
Micro-
controller
interface
Audio output
circuit Digital output
16k
RAM
Address
circuit
1-bit
DAC Servo control
Clock
generator
LPF
PWM D/A
A/D
ROM
CLV servo
Sync signal
protection
EFM
Sub code
detector
Data
slicer
VCO
PLL
TMAX
Digital equalizer
automatic
adjustment circuit
RAM
Correction
circuit
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
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
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
BCK
LRCK
AOUT
DOUT
IPF
V
DD3
V
SS3
SBOK
CLCK
DATA
SFSY
SBSY
/HSO
/
UHSO
PV
DD3
PDO
VXDD3 XO XI XV
SS3
TEIN V
DD3
V
SS3
DMO FMO AV
DD3
SEL TEBC RFGC V
REF
TRO FOO
DV SS3
RO
DV
DD3
DVR
LO
DV
SS3
ZDET
V
SS5
BUS0
BUS1
BUS2
BUS3
BUCK
/CCE
/RST
V
DD5
TEZI
TEI
SBAD
FEI
RFRP
RFZI
RFCT
AV
DD3
RFI
SLCO
AV SS3
VCOF
RV
REF
LPFO
LPFN
TMAX
TC9490FA (IC521) : DSP & DAC
1.Pin layout & Block daiagram