Kenwood CT-203 Service Manual page 9

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K L
RE C MUT E
R64 C74
1 . 8K
2 . 2µ5 0
A
C52 NOR SP
2 200P
Cr O2 : ON
7 0 µSW
R56
Q2 0
2 2K
6 . 0V
6 . 0V
NC
6 5 4
V r e f
MPX
DOLBY
1 2 3
B / C NR
6 1
1 A
L 7
( R- CH )
6 2
Q14
6 3 R50 2 . 2K
0 . 3V
6 4 R92 1 8K
1 µ50
6 5 6 . 0V C46
1 µ50
5 B I T
6 6 6 . 6V C42
DAC
6 7 6 . 6V
1 µ50
6 8 6 . 0V C44
E. VOL
6 9 6 . 6V
7 0
GND 7 1
7 2 6 . 6V
1 µ50
7 3 6 . 0V C43
E. VOL
7 4 6 . 6V
1 µ50
7 5 6 . 6V C41
5 B I T
1 µ50
7 6 6 . 0V C45
DAC
1 µ50
RE F 7 7 5 . 8V C85
7 8 6 . 1V R49 2 . 2K
7 9 6 . 0V
8 0
DOLBY
NC
1 A
B / C NR
( L- CH )
6 5 4
MPX
V r e f
1 2 3
L 8
6 . 1V R53 2 . 2 K
7 0 µ S W
R55
Q19
2 2K
C51
2 200P
R98
11K
R63
Q2 1
1 . 8K
Q2 2
4 0 0 / 1 2. 5 K OSC
SELECT L EVEL
8 . 7V( REC )
Q4 7
R155 180 1 / 4W
10 µ50
C110
REC: 0 V
OTHER : 12. 4V
0 . 4V
Q4 5 Q1 2 Q1 1
Q4 8
REC: 4 . 9V
A. N / H SW
OTHER: 0V
0 V
0 . 4V
Q4 6
M N
R260
1 00K
4 0
H IGH SPEED
S23
A. PLAY: 4 . 8V 3 9
R253
S24
NORMAL SPEED
1 K
3 8
OTHER: 0V ( 38 ) ACSP A MECHA
3 7
( 37 ) ACPM
BOT TOM V I EW
0 . 6V
3 6
( 36 ) ASOL
3 5
µ - COM
( 35 ) BCSP
3 4
( 34 ) BCPM
3 3
VSS
2 . 5V 3 2
REC: 0 V
XTAL B MECHA
X1
OTHER 2 . 5V 3 1
10MHz
Q13 EX TAL
DUBB I NG
3 0
: 0. 7V RESET
0 . 6V
2 9
( 29 ) BSOL
2 8
7 0 NSP
2 7
( 27 ) BI AS
0 V
2 6
( 26 ) 7 0 HSP
2 5
LEVEL L
Q2 3
R48
4 . 6V
3 . 9K
REC: 0 V
OTHER
DUBB I NG
RE C: 4 . 9V
: 0. 7V
OTHER: 0V
( 5 )
( 1 1 )
( 1 3 )
( 8 )
( 9 )
( 1 0 )
( 7 5 )
( 1 9 )
( 2 2 )
( 2 3 )
Q6 7 Q6 8
4 . 6V
0 V
4 . 6V
C140
1 µ50
R195
1 K
Q5 8
( 3 8 )
HI SPEED HI SPEED: 11. 9V
: 0V NORMAL SPEED: 0V
NORMAL
SPEED
VR3 VR4
: 4. 6V
2 2K ( B ) R211 2 2K( B ) R212
Q65
1 6K 16K
VR1 VR2
( 38 )
10K( B ) R213 10K( B ) R214
Q61 Q62
2 0K 2 0K
A. MOTOR B. MOTOR
ON: 0. 7V ON: 0. 7V
( 37 )
OFF: 0 V O FF: 0 V
Q5 9 Q60
R207 R209 R208 R210
4 . 7K 4 7K 4 . 7K 4 7K
D3 3 D3 4
( 36 )
Q6 3 Q64
R215 R217 R216 R218
4 . 7K 4 7K 4 . 7K 4 7K
O P
6 5
6 G
(65)
6 6
5 G (66)
6 7
4 G (67)
I C 1
GRID 6 8
3 G (68)
6 9
2 G (69)
7 0 - 19. 5 V
1 G (70)
7 1
VFDP
7 2
VDD
7 3 4 . 9V
NC
7 4
A R/ P
7 5
ERASE
7 6
B R/ P
7 7
5 . 0V NC
7 8
CE
7 9
PHB
8 0
PHA
1
A0
2
A1
3
A2
4
VSS
- 19. 5 V
* W221
POWER SUPL LY
* F1
1 1. 9V 2 4. 7V
0 . 8A 250
Q5 5
CN15 CN14
* *
3 . 6V
Q5 6 Q5 4
D1 2 D1 1 D1 0
R186
4 . 9V
4 . 9V
1 0K
R193 1 0K
C130
2 2µ35
RESET
D1 3 1 9. 4V 2 4. 0V
I C 8
4 . 9V 4 . 9V
D2 1 D7
1 2
OU T I N
GND
3
D2 7
D2 8
+ 1 2V AVR
( SYSTEM I C OSC,
PBEQ)
PHONE
- 13. 2 V
1 2. 8V I C 9 2 8. 6V
*
3 1
2
HI SPEED 0 . 6V
: 0V
NORMAL
SPEED
: 4. 9V
Q66
( 35 )
( 34 )
- 19. 5 V
- 13. 4 V
( 29 )
D1 7 D1 6 D1 5
- 19. 5 V Q5 7 - 44. 0 V
- 36. 2 V - 11. 5 V
World of free manuals
Q
CN7
1 CW
2 CCW
3
KR3
X2 8 - 27 8 x - x x
4 KR2
5 KR1
6 F1
7 F2
(70) 8 1 G
CT-2050
9 2 G
(69)
KXF-W6010/(E)
(68) 10 3 G
5 . 0V
(67) 11 4 G
CT-203
12 5 G
(66)
R223 KXF-W4010/(E)
(65) 13 6 G
100K
2 . 2K
(62) 14 S1
5 R225 2 2K
8
7 + 15 S2
(61)
6 R227 15 0K
0 V – (60) 16 S3
I C 6
2 / 2
5 . 0V (59) 17 S4
18 S5
(58)
PH DET (57) 19 S6
(56) 20 S7
R224 1 00K 2 . 2K
(55) 21 S8
CT-2050
3 R226 2 2K
+
1 (54) 22 S9 / KS1
2 R228 1 50K
KXF-W6010/(E)
–
0 V (53) 23 S10 / KS2
I C 6
4
1 / 2 5 . 0V (52) 24 S11 / KS3
CT-203
(51) 25 S12 / KS4
KXF-W4010/(E)
26 S13 / KS5
(50)
(49) 27 S14 / KS6
(48) 28 S15 / KS7
29 S16 / KS8
(47)
I C 10
(46) 30 S17 / KS9
8
VCC
(45) 31 S18 / KS10
4 . 9V
32
7 4 . 9V (44) S19 / KS11
NC
33 S20 / KS12
6
34 S21 / KS13
CLK ( 21 )
4 . 9V (41) 35 S22 / KS14
5
DATA ( 20 ) (40) 36 S23
4 . 9V
(39) 37 S24
38 GND
39 5 V
P- ROM
TEST MODE
5
R124 TEST1
- 13. 7 V
10 K
6
7
M. ADJ . A . ADJ .
4
D4
– ~
+ ~
X 2 8 - ( C / 8 )
CN4
WH1
1 1
2
3
4 2
C122 0 . 022 3
( 7 )
1 3. 7V
( 6 )
J 7
4
R262 8.2
2 8. 6V
* W45
SYSTEM
D2 3
R197 CONTROL
330
J 3
R199 100K DATA
R200 100K BUSY
D2 4
R198
330
GND
KXF-W4010(CT-203)
/W6010(CT-2050)(K) (1/2)
CT-203/2050/KXF-W4010/W6010
Y26-4360-10
2/6/2013
R S T
T O X 2 8 CN8
A
2/ 2
F1
DESTI NAT I ON
MODEL
W45
UN I T NO .
NAME CN14 , 15
COUN TRY ABB. W2 21
R262
USA K, P 0 - 10 YES NO
EUROPE T, E, E1 2 - 71
NO YES
GENERAL MARKET M 0 - 21
USA K, P 0 - 11 YES NO
EUROPE X ,T, E, E1 2 - 72
NO YES
GENERAL MARKET Y, M 0 - 22
K1 D2
C8 9, 9 0, 105
W29, 4 7, 5 1
1 1 1, 142 ,
MODEL 6 1 , 6 5
ABB. UN I T NO. C13, 14 C9 3, 9 4
Q2 9~ 4 4, 4 9
NAME 2 2 2~ 2 24
R127 , 12 8 , 1 3 1
2 2 7
13 2, 1 37 ~ 14 4
0 - 10
K, P
2 - 71 4 7 0P 2 2 0P NO YES
X, T, E
Y, M 0 - 21
K, P 0 - 11
X, T, E 2 - 72 6 8 0P 1 5 0P YES NO
Y, M , E1 0 - 22
( M T YPE )
X2 8 - ( C/ 8 )
TF
1
1 15V
2
3
CN1
1 1
2 30V
4
2 2
POWER
TRANSFORMER
X 2 8 - ( H / 8 )
X 2 8 - ( F / 8 )
1 10 - 1 20V
S1
2 20 - 2 40V
S33
( K, E T YPE )
TF
1 15V
CN1
1 1
2 30V
2 2
POWER
TRANSFORMER
X 2 8 - ( H / 8 )
S1
S I GNA L L I NE
RE CORDI NG L I NE
GND L I NE
+ B L I NE
- B L I NE