JVC kd-lx300_kd-lx100[1].PDF

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KD-LX300/KD-LX100
SERVICE MANUAL
CD RECEIVER
KD-LX300/KD-LX100
Area Suffix
J
Northern America
SEL
7
8
9
10
11
1 2
OFF
Difference piont
KD-LX300
KD-LX100
LINE IN
O
X
SUBWOOFER OUT
O
X
Contents
Safety preccaution
Preventing static electricity
Disassembly method
Adjustment method
Extension cord connectiong method
Functions of the mechanism
under the service mode
Flow of functional operation
until TOC read
Maintenance of laser pickup
Replacement of laser pickup
Description of major ICs
1-2
1-3
1-4
1-13
1-14
1-16
1-18
1-19
1-19
1-21~37
COPYRIGHT 2001 VICTOR COMPANY OF JAPAN, LTD.
No.49635
Apr. 2001
688242806.014.png 688242806.015.png 688242806.016.png 688242806.017.png 688242806.001.png 688242806.002.png
KD-LX300/KD-LX100
Description of major ICs
FAN8037 (IC661) : CD driver
1. Pin layout & Block diagram
48 47 46 45 44 43
42 41 40 39 38 37
1
36
2
35
3
34
4
33
5
32
6
31
7
30
8
9
s
w
C
D
D
29
w
C
D
D
28
10
27
11
s
w
C
D
D
26
STAND BY
ALL MUTE
POWER SAVE
12
T. S . D
25
13 14 15 16 17 18
19 20 21 22 23 24
2. Pin function
Pin
No.
Symbol I/O
Function
Pin
No.
Symbol I/O
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
IN2+
IN2-
OUT2
IN3+
IN3-
OUT3
IN4+
IN4-
OUT4
CTL1
FWD1
REV1
CTL2
FWD2
REV2
SGND
FWD3
REV3
CTL3
SB
PS
MUTE
PVCC2
DO7-
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(-)
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
DO7+
DO6-
DO6+
PGND2
DO5-
DO5+
DO4-
DO4+
DO3-
DO3+
PGND1
DO2-
DO2+
DO1-
DO1+
PVCC1
REGOX
REGX
RESX
VREF
SVCC
IN1+
IN1-
OUT1
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
1-21
688242806.003.png 688242806.004.png 688242806.005.png 688242806.006.png
KD-LX300/KD-LX100
UPD784215AGC-128 (IC701) : UNIT CPU
1.Terminal Layout
75 ~ 51
76
50
100
26
1 ~ 25
2.Pin Function (1/2)
Pin No.
Symbol
I/O
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
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
SW2
SW3
SW4
REST-SW
LM0
LM1
DIMMER-OUT
LCD-PWR
VDD
X2
X1
VSS
XT2
XT1
RESET
SW1
BUS-INT
PS2
CRUISE
NC
NC
REMOCON
AVDD
AVREF0
VOL1
VOL2
KEY0
KEY1
KEY2
LEVEL
NC
S.METER
AVSS
W-VOL
DOT-CONT
AVREF
BUS-SI
BUS-SO
BUS-SCK
STAGE2
LCD-DA
LCDCL
I
I
I
I
O
O
O
O
-
-
-
-
-
-
I
I
I
I
I
-
-
I
-
-
I
I
I
I
I
I
I
I
-
O
O
-
I
O
I/O
I
O
O
Detection switch of CD mechanism
Detection switch of CD mechanism
Detection switch of CD mechanism
Reset signal input from CD mechanism
Loading motor control signal output
Loading motor control signal output
Dimmer signal output
LCD driver power supply control output H:ON
Power supply terminal
Connecting the crystal oscillator for system main clock
Connecting the crystal oscillator for system main clock
Power supply terminal
Connecting the crystal oscillator for system sub clock
Connecting the crystal oscillator for system sub clock
System reset signal input
Detection switch of CD mechanism
Cut-in input for J-BUS signal
Power save 2, Working together back up by H input, to stop mode
Pulse signal input port for Cruise control
Clock signal input for RDS
RDS data input
Remote control signal input
Power supply terminal
Power supply terminal
Input for rotation volume detection pulse judgment to relation V1
Input for rotation volume detection pulse judgment to relation V2
Key control signal input 0
Key control signal input 1
Key control signal input 2
Signal input port of level meter
Non connect
S.Meter level input
Connect to GND
Subwoofer volume control analogue output
Dot contrast signal output
Power supply terminal
J-BUS data input
J-BUS data output
J-BUS Clock signal I/O
Initial setting
Data output to LCD driver
Clock output to LCD driver
1-22
688242806.007.png
KD-LX300/KD-LX100
Pin Function (2/2)
Pin No.
Symbol
I/O
Function
43
44
45
46
47
48
49
50
51
52
53
54
55
56~60
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
95~98
99
100
LCD-CE1
BUZZER
E2PR-DA-I
E2PR-DA-O
E2PR-CLK
BUS-I/O
TM0
TM1
DM0
DM1
SD/ST
LOCAL
MONO
CA-SW1~5
NC
SEEK/STOP
NC
FM/AM
PLL-CE
PLL-DA
PLL-CK
BAND IN
NC
AMP KILL
VSS
DIMMER-IN
PS1
POWER
CD-ON
MUTE
W-LPF1
W-LPF2
W-MUTE
VDD
VO-DA
VOL-CLK
NC
GVSW
LCDRST
LCD-CE2
DMK
TMK
NC
BUCK
CCE
RST
TEST
BUS0~3
DISC SEL
NC
O
O
I
O
O
I/O
O
O
O
O
I
O
O
I
-
O
-
O
O
O
O
I
-
-
-
I
I
O
O
O
O
O
O
-
O
O
-
O
O
O
O
O
-
O
O
O
-
I/O
I
-
Chip enable output to LCD driver
BUZZER control signal output
Data input terminal from EEPROM
Data output terminal for EEPROM
Clock signal I/O terminal with EEPROM
J-BUS I/O signal terminal
Tray motor negative signal output terminal
Tray motor positive signal output terminal
Door motor negative signal output terminal
Door motor positive signal output terminal
Station detector, Stereo signal input, H:Find Station L:Stereo
Local ON/OFF select signal output terminal
Monaural ON/OFF selecting output, H:MONO ON
DOOR/TRAY open close detect switch signal input terminal
Non connect
Auto seek/stop selecting output, H:Seek L:Stop
Non connect
Selecting output for FM/AM, L:FM H:AM
CE output for IC control for PLL
Data output for IC control for PLL
Clock output for IC control for PLL
AM detect signal input
Non connect
Non connect
Connect to GND
DIMMER signal input terminal
Power supply terminal
Selecting output for power ON/OFF, H:power ON
Power supply control signal for CD H:CD
MUTE output, L:MUTE ON
Subwoofer cut off frequency output 1
Subwoofer cut off frequency output 2
MUTE output for Subwoofer
Power supply terminal
Data output terminal
Clock signal output terminal
Non connect
AGC/FE/TE amp gain change terminal
LCD reset signal output terminal
Chip enable 2 output terminal for LCD driver
Motor speed control signal output terminal
Tray motor control signal output terminal
Non connect
Micon interface clock output terminal
Command and data sending/receiving chip enable signal output
Reset signal output terminal reset at "L" level
Connect to GND
Micon interface data input/output terminal
Initial setting
Non connect
1-23
688242806.008.png
KD-LX300/KD-LX100
TC9490FA (IC521) : DSP
1. Pin layout & Block diagram
DVss3 49
32 TEZI
RO 50
Clock
generator
PWM
31 TEI
D/A
DVDD3 51
30 SBAD
LPF
DVR 52
1-bit
DAC
29 FEI
Servo control
A/D
LO 53
28 RFRP
DVss3 54
27 RFZI
ZDET 55
Address
circuit
ROM
Digital equalizer
automatic
adjustment circuit
26 RFCT
Vss5 56
RAM
25 AVDD3
BUS0 57
24 RFI
Data
slicer
16 k
RAM
CLV servo
BUS1 58
23 SLCO
BUS2 59
Sync signal
protection
EFM
22 AVss3
BUS3 60
VCO
21 VCOF
BUCK 61
Audio output
circuit
Digital output
20 PVREF
/CCE 62
Micro-
controller
interface
Sub code
decoder
PLL
TMAX
19 LPFO
/RST 63
18 LPFN
VDD5 64
17 TMAX
2. Pin function (1/2)
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
Symbol
BCK
LRCK
AOUT
DOUT
IPF
VDD3
Vss3
SBOK
CLCK
DATA
SFSY
SBSY
/HSO
I/O
O
O
O
O
O
-
-
O
O
O
O
O
O
Function
Bit clock output terminal
L/R channel clock output terminal
Audio data output terminal
Digital data output terminal
Correction flag output terminal
Digital 3.3V power supply voltage terminal
Digital GND terminal
Subcode Q data CRCC result output terminal
Subcode P-W data read clock I/O terminal
Subcode P-W data output terminal
Playback frame sync signal output terminal
Subcode block sync signal output terminal
Playback speed mode output terminal
1-24
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