KT-DB1000
SCHEMATIC DIAGRAMS
DAB Tuner Unit
KT-DB1000
CD-ROM No.SML200209
Contents
Block diagrams
Standard schematic diagrams
Printed circuit boards
2-1
2-2
2-4
COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD.
Area Suffix
E Continental Europe
No.49758SCH
Sep. 2002
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.
Block diagram
KT-DB1000
ANTENNA
DAB TUNERDAB TUNER
5
QAU0284-001QAU0284-001
B3
L
TU1TU1
(A5V/A3.3V)(A5V/A3.3V)
SAW
36.864MHz
PLLPLL
IF
2.048MHz
ADCADC
4
TH1TH1
PTCPTC
NAD0031-001NAD0031-001
X1X1
24.576MHz
DAB BASEBANDDAB BASEBAND
MN66720UCMN66720UC
AFCAFC
FIRFIR
AGCAGC
VITERBIVITERBI
MPU IFMPU IF
IC1IC1
(D3.3V/A3.3V)(D3.3V/A3.3V)
3M DRAM3M DRAM
FFTFFT
DECODERDECODER
DEINTE-DEINTE-
RLEAVERRLEAVER
MP2MP2
MCK
BCK
LRCK
DA
2
S)
(I
IC501IC501 IC901IC901
DACDAC
AK4382AK4382
(A5V)(A5V)
L-CH
R-CH
BUFFER AMPBUFFER AMP
NJM4580NJM4580
(9V)(9V)
Q121Q121
Q221Q221
MUTEMUTE
CD CHANGER
L-CH
R-CH
IC911IC911
AudioAudio
SwitchSwitch
NJM2750NJM2750
(9V)(9V)
JBUS AUDIO OUT
MPUTX
MPURX
MPUCK
MPUEN
MPUMOD
DDOWFIC
3
2
BATT
IC802IC802 IC803IC803 IC804IC804
Q891Q891
TR.SWTR.SW
SW.REGSW.REG
SI8050SI8050
SER.REGSER.REG
NJM2370NJM2370
SER.REGSER.REG
TA48033TA48033
SER.REGSER.REG
7805A7805A
IC801IC801
IC806IC806
PLL SCL
PLL SDA
2
C)
(I
SER.REGSER.REG
BA033BA033
POWER OUT
A3.3V
D3.3V
A5V
D5V
9V
P3.3V
RESETRESET
PST9121PST9121
(P3.3V)(P3.3V)
IC851IC851
DAB RESET
RESET
DIDOCK
EEPROMEEPROM
BR93LC66FBR93LC66F
(P3.3V)(P3.3V)
IC702IC702
UCOM.UCOM.
MN102H60KCBMN102H60KCB
(P3.3V)(P3.3V)
CS
19.6608MHz
IC701IC701
X701X701
DACCSN
DACCDTO
DACRESET
DACCCCLK
MUTE
JBUSINT
JBUSI/O
JBUSDAO
JBUSDAI
JBUSCK
DZFL
DZFR
IC771/IC772IC771/IC772
3.3V/5V IF3.3V/5V IF
TC7WT241x2TC7WT241x2
(P5V)(P5V)
AUDIOSEL
JBUSCK
JBUSDA
Serial Communication Signal
Analog Signal
Other Control Signal
1
CMOS REGCMOS REG
S-81250S-81250
AB CD E F G
IC805IC805
P5V
2-1
KT-DB1000
KT-DB1000
Standard schematic diagram
22p
30p
X1
C21
R18
5
0.1
C19
IC1
MN66720UC
C24
22/10
C7
0.1
C8
0.1
C1
0.1
C9
0.1
C2
100/16
C3
22/10
C25
C27
C6
4.7/25
4
TU1
QAU0284-001
S1
QSW0991-001
R19
C28
22/10
C5
0.1
C4
100/16
C26
22/10
D1
UDZS3.6B
47k
15k
R20
220
R1
0.1
47k
R2
0.1
47k
R3
1M
R17
47
220
0.1
C10
R7R8R9
3
TH1
NAD0031-001
C22
C20
22/10
680
220
220
0.1
C13
0.1
C17
C16
0.1
R15
220
R14
220
220
R730
R731
C709
R719
R718
R720
R721
C704
C710
R729
4.7k
220
0.1
220
220
0.1
R726
220
22p
4.7k
10k
0.1
C14
0.1
C18
220
R13
0.1
C11
C12
10/16
2200220
R717
R716
220
R715
47k
R732
4.7k
R714
4.7k
R713
47k
R733
4.7k
R712
4.7k
R711
C705
220
220
0.1
R735
R736
C707
C708
IC702
BR93LC66F
0.1
220
220
220
220
0.1
R708
R707
R706
R705
R704
10k
C702
R702
R701
C701
15p
X701
15p
C703
0.1
220
220
220
R737
IC701
MN102H60KCB
R703
680
C706
10/16
R734
0.1
10k
ANALOGUE SIGNAL
DIGITAL SIGNAL
39k
R722
IC501
AK4382AVT
Q891
2SB1322
R892
Q892
UN2211
2
R122
CN921
J911
QNZ0111-001
UN2111
1k
Q122
UN2211
100
R121
Q121
2SC2412K/R
2SC2412K/R
Q221
R222
100
1
R221
Q223
Q123
UN2111
4.7/25
4.7/25
C201
C202
Q222
1SS355
1SS355
UN2211
D121
D221
1k
CN911
4.7/25
C221
4.7/25
C121
C912
C111
10/16
4.7/16
47
R913
C211
0.1
C913
R912
4.7/16
C911
10k
10/16
F801
ICP-N70
R911
IC911
22
NJM2750M
D801
2A02
4.7/25
C207
C107
4.7/25
R801
R901
47
C801
10/16
R123
2.2k
R223
2.2k
1k
CN912
C205
470p
22
IC901
C901
10/16
NJM4580V
C105
470p
C802
4.7k
R201
C206
0.0033
3.3k
R208
470p
C104
IC801
NJM2370U09
10/16
R202
220
R207
4.7k
R206 R6
R108
R107
R106
R204
4.7K
220
C101
4.7/25
4.7k
R101
3.3k
220
C106
220
R802
10k
C501
0.0033
C803
0.1
18k
R724
0.1
R501
C502
10/16
R203
22k
R205
22k
C203
C204
10/16
470p
C102
4.7/25
4.7k
R102
22k
R105
C103
10/16
R104
R103
4.7K
22k
R725 R723
Q702
UN2111
18k 39k
Q701
UN2211
IC771
TC7WT241
IC805
D804
S-81250SGUP
1SS355
2SA1037AK/RS
470/25
C804
R808
0.1
C805
Q803
Q804
UN2211
18k
8.2k
R809
D803
DSK10C
IC802
SI8050JF
RB160L-40
D802
L801
Q801
2SC2412K/R
Q802
UN2211
150k
R810
100
100k
R803
R807
R805R804
47
6801.2k
10/16
C813
IC803
UPC7805AHF
10/16
C806
470/25
C807
0.1
C814
0.1
C808
10/16
C809
C815
10/16
IC804
BA033FP
10/16
C810
0.1
C811
10/16
C812
R771
C819
100k
1000/16
C771
R806
R772
6.8k
R776
0.1
R775
3.9k
10k
100
R773
330k
R774
IC806
TA48033F
10
C816
10/16
0.1
C817
C818
C772
6.8K
0.1
R781
100k
R782
3.9K
R780
IC772
TC7WT241
100
10k
R778
R777
330k
R779
C851
D851
1SS355
R851
2.2k
IC851
PST9121N
10/16
AB CD E F G
2-2
<Wave form>
IC1 Pin34 IC1 Pin35
IC1 Pin36 IC701 Pin13
KT-DB1000
IC701 Pin50 IC802 Pin2
2-3
KT-DB1000
Printed circuit boards
Main board (Forward side) Jack board (Forward side)
C811
C818
R771
C202
R772
IC805
C912
C816
R774
R911
C204
CN921
R913
C913
R806
Q804
IC911
C121
C813
C911
C810
C815
R802
R207
C221
C211
C812
C801
C205
R202
C206
R121
R201
R122
C111
C803
D803
R222
IC801
R221
D221
R223
IC804
F801
C802
C805
C804
CN911
C807
C806
C809
L801
D801
IC802 IC803
MARK
UL
UL
J911
CN912
LVA10362-A2
MARK
C817
IC806
R20
C703
C704
R722
R721
R723
R14
IC701
R730
R13
R729
R107
R724
R725
R108
C710
R731
C105
TH1
LCD
IC851
IC771
IC772
C104
C103
R726
C18
D1
IND OUT
R732
R733
R103
R19
R892
C11
Q891
R102
C102
R6
C10
Q702
C901
C106
R101
R775
R780
C706
C503
IC901
C851
R203
C502
C771
C203
IC501
Q892
R773
Q701
C772
R901
C101
C501
R208
C207
C107
C201
R779
R778
R777
X701
LVA
10362-
S1B
TU1
A1
KEY
C819
IC702
R707
R708
R705
R706
C4
C6
SDSP
MDSP
R710
R715
C708
S1
R704
X1
C19
R717
IC1
C13
C17
C2
C709
C16
R720
R15
R719
C12
C14
C7
Main board (Reverse side)Jack board (Reverse side)
R737
R851
C901
C203
Q122
C101
R776
R782
R781
R734
C502
D851
R735
C705
CN702
C102
R501
Q891
R105
R106
R104
R736
C103
CN1
R8
R9
R7
C9
R809
C815
C911
C810
Q803
C813
R912
Q222
C221
Q121
R807
D121
C814
C207
C818
D804
C107
R204
C121
R810
R205
C912
R123
C202
C201
Q123
C816
C851
R206
J911
C812
C801
R801
C802
C808
D802
CN911
C807
C806
F801
Q801
C804
Q221
CN921
D803
R808
Q223
R803
Q802
IC803
C809
R805
R804
IC802
CN912
2
L801
CN801
D801
R702
R701
R711
R712
R713
R714
C22
R718
C12
C701
R738
R739
C20
R18
C8
R17
C702
X701
R703
C4
R716
C6
X1
C21
C2
S1
C707
B701
R709
C5
C819
C29
C26
C28
C27
C25
C3
R3
R2
R1
C24
C1
C23
TU1
2-4
< MEMO >
KT-DB1000
VICTOR COMPANY OF JAPAN, LIMITED
MOBILE ELECTRONICS DIVISION
PERSONAL & MOBILE NETWORK BUSINESS UNIT. 10-1,1Chome,Ohwatari-machi,Maebashi-city,371-8543,Japan
(No.49758SCH)
Printed in Japan
200209
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