Kenwood CT-203 User manual

REC PLAY
LINEIN LINEOUT
R
L
SYSTEM CONTROL AC220-
240V~
AC110-
120V~
POWER
TAPE B
1 8PAUSE ¶REC/ARM
STEREO DUBLE CASSETTE DECK KX-W6080
AUTO REVERSE
REC LEVEL /BAL..
/ BIAS
MAX/RMIN/L
MODE
REC OFF PLAY
TIMER
RESET BAUTO BIASCCRSMPX FILTERNORM.-DUBB.-HIGH
TAPE A
0
18 PAUSE ¶REC/ARM
AUTO REVERSE
1 1
RELAY RECREV.MODEDOLBY NRRESET A
PHONES-ON –OFF
0
FORWARDSTOPREVERSE FORWARDSTOPREVERSE
KENWOOD badge
(B43-0302-04) Front glass (B10-2486-04) Knob
(K29-6935-04) Knob (K29-2936-04)
Panel*
(A60-)
Phono jack
(E63-0136-15) Miniature phone jack
(E11-0188-05)
AC power cord*
(E30-)
Foot*
(J02-)
Power cord bushing
(J42-0083-05)
Cassette lid L*
(A53-) Knob* (K29-)
Knob*
(K29-)
Knob*
(K29-)
Knob*
(K29-) Knob (BUTTON)*
(K27-) Phono jack (E11-0292-05)
Slide switch
(S31-1036-05)
Front glass
(B10-2450-03)
Knob
(K29-5828-04)
Front glass
(B10-2486-04) Cassette lid R* (A53-)
PRECAUTIONS FOR REPAIR
Refer to KX-W4070/W6070 service manual(B51-5031-00), if you want to know more
information of CIRCUIT DESCRIPTION.
Illustration is KXF-W6010.
* Refer to parts list on page 18.
STEREO DOUBLE CASSETTE DECK
CT-203/KXF-W4010/KXF-W4010E
CT-2050/KXF-W6010/KXF-W6010E
SERVICE MANUAL
© 1998-2/B51-5413-00 (K/K) 3430
CT-203/KXF-4010(K)COVER( 98.4.250:05PM y[W 2

CT-203/2050/KXF-W4010/W6010
2
CONTENTS / ACCESSORIES / CAUTIONS
CONTENTS / ACCESSORIES / CAUTIONS............. 2
CONTROLS............................................................... 3
ADJUSTMENT........................................................... 5
PC BOARD ................................................................ 7
SCHEMATIC DIAGRAM............................................ 9
EXPLODED VIEW ................................................... 16
PARTS LIST............................................................. 18
SPECIFICATIONS................................................... 23
Beware of condensation
When water vapor comes into contact with the surface of cold
material, water drops are produced. If condensation occurs, cor-
rect operation may not be possible, or the unit may not function
correctly. This is not a malfunction, however, and the unit should
be dried. (To do this, turn the POWER switch ON and leave the
unit for several hours.)
Be especially careful in the following conditions:
●When the unit is brought from a cold place to a warm place,
and there is a large temperature difference.
●When a heater starts operating.
●When the unit is brought from an air-conditioned place to a
place of high temperature with high humidity.
●When there is a large difference between the internal tempera-
ture of the unit and the ambient temperature, or in conditions
where condensation occurs easily.
Cautions
Operation to reset
The microcomputer may fail into malfunction (impossibility to oper-
ate. erroneous display, etc.) When the power cord is unplugged
while this unit is ON or due to an external factor. In this case, exe-
cute the following method to reset the microcomputer and return it
to normal condition.
Turn the power switch on and off again while pressing the stop
(7)key on desk B.
¶Please note that resetting microcomputer clears contentsstroed
in and returns it to the condition when it left the factory.
Contents
Audio cord................................2
(E30-0505-05) System control cord.....................1 (E30-2816-05) Except for U.S.A., Mexico, Canada, U.K., Europe and Australia
AC plug adaptor.......1
(E03-0115-05)
Note : CT-203 and CT-2050 is for USA and Canada market.
Accessories
CT-203/KXF-4010(K)COVER( 98.4.250:05PM y[W 3

CT-203/2050/KXF-W4010/W6010
3
POWER
TAPE B
1 8PAUSE ¶REC/ARM
STEREO DUBLE CASSETTE DECK KX-W6080
AUTO REVERSE
REC LEVEL /BAL..
/ BIAS
MAX/RMIN/L
MODE
REC OFF PLAY
TIMER
RESET BAUTO BIASCCRSMPX FILTERNORM.-DUBB.-HIGH
TAPE A
0
18 PAUSE ¶REC/ARM
AUTO REVERSE
1 1
RELAY RECREV.MODEDOLBY NRRESET A
PHONES
-ON –OFF
0
FORWARDSTOPREVERSE FORWARDSTOPREVERSE
Deck A:
Playback and Recording
(KXF-W4010: Playback only)
Deck B:
Playback and
Recording
Eject button 0Eject button 0
Operation key section
Display
PAUSE key
REC/ARM key
8
¶
8
¶
8
¶
Fast reverse key
Fast forward key
POWER switch
PHONES jack
PAUSE key
REC/ARM key
Fast reverse key
Fast forward key
REC LEVEL/BAL. (BALANCE)/BIAS control knob
(KXF-W4010: REC LEVEL/BAL.only)
MODE key
TIMER switch
1
¡1
¡
HIGH
DUBBING
HIGH DUBBING key
NORMAL DUBBING key
NORMAL
DUBBING
This Illustration shows the KXF-W6010 model.
Operation Indicators (Deck A)
Transport
direction
Recording indicator
(KXF-W6010 only)
Pause indicator
(KXF-W6010 only)
2, 3
8
¶
Operation Indicators (Deck B)
Transport
direction
Recording indicator
Pause indicator
2, 3
REV.MODE
indicators
Peak level indicators
(Dolby NR reference level)
CCRS indicators MPX indicator
BAL.BIAS LEVEL
indicators
(KXF-W4010:
BAL.,LEVEL only)
Deck B counter
AUTO BIAS indicator
DOLBY NR indicators
DUBBING indicators
NORMAL
HIGH
RELAY indicator
Deck A counter
DUBBING NORMAL HIGH DOLBY NR AUTO BIAS
B C
B C
CONTROLS
CT-203/KXF-4010(K)COVER( 98.4.250:05PM y[W 6

CT-203/2050/KXF-W4010/W6010
4
RESET BAUTO BIASCCRSMPX FILTERNORM.-DUBB.-HIGHRELAY RECREV.MODEDOLBY NRRESET A
FORWARDSTOPREVERSE FORWARDSTOPREVERSE
RESET BAUTO BIASCCRS MPX FILTERREV.MODEDOLBY NRRESET A
FORWARDSTOPREVERSE FORWARDSTOPREVERSE
RESET A key
(COUNTER)
DUBBING key
NORMAL
HIGH
MPX FILTER key
REV.MODE key
CCRS key
DOLBY NR key RELAY REC key AUTO BIAS key
RESET B key
(COUNTER)
STOP key STOP key
Play keys ,
(For deck A) Play keys ,
(For deck B)
RESET A key
(COUNTER)
MPX FILTER key
REV.MODE key
CCRS key
DOLBY NR key
AUTO BIAS key
RESET B key
(COUNTER)
STOP key STOP key
Play keys ,
(For deck A) Play keys ,
(For deck B)
Operation key section (KXF-W4010)
Operation key section (KXF-W6010)
CONTROLS
CT-203/KXF-4010(K)COVER( 98.4.250:05PM y[W 7

REC PLAY
LINEIN LINEOUT
R
L
SYSTEM CONTROL
Oscilloscope
AG AC voltmeter
AC voltmeter
Frequency counter
(A) (B)
✽ Please refer to Automatic Adjustment for Playing, Recording, BIAS level adjustment.
(a) Azimuth adjustment screwSystem connections
CT-203/2050/KXF-W4010/W6010
5
ADJUSTMENT
CT-203/KXF-4010(K)COVER( 98.4.250:05PM y[W 10

CT-203/2050/KXF-W4010/W6010
6
ADJUSTMENT
CT-203/KXF-4010(K)COVER( 98.4.250:05PM y[W 11

ACEGIBDFHJ
2
1
3
5
7
4
6
Refer to the schematic diagram for the value of resistors and capacitors.
PC BOARD(Component side view)
7 8
CT-203/KXFPCB/SD 2P 98.4.250:12 PM y[W 1

AB D F H JC E G I
2
1
3
5
7
4
6
12.8V
6.4V
6.4V
6.4V
6.4V
6.4V
6.4V
12.8V
12.2V
3.8V
0.8V
1.2V
3.8V
9.9V
10.0V
12.8V
12.8V
12.8V
12.8V
1.7V
12.8V
12.8V 0V 0V 0.6V 4.4V
4.4V
0V
0V
4.4V
0.6V0V0V
11.9V11.9V
11.9V 11.9V
5.5V
5.5V
5.5V
5.5V
12.8V
12.7V
PLAY, REC
REC PAUSE
:4.6V
OTHER:0V
6.4V
6.4V
REC: 4. 9V
OTHER: 0V
A. PLAY: 0V
B. PLAY: 4. 7V
A. PL AY
B. PL AY: 0V
:4.7V
BIAS ON: 4. 6V BIAS OFF: 0V
4.6V PLAY, REC
OTHER:0V
REC PAUSE
:4.6V
REC: 4 . 7V
OTHER: 0V
PLAY, REC
OTHER: 0. 6V
REC PAUSE
:0V
REC : 0V
OTHER: 0. 6V
1.2V 1.2V 1.2V
1.2V
6.0V 1.2V
6.0V
CrO2:0V
NORMAL: 1.2V
REC: 0 . 7 V
OTHER: 0V
OTHER: 0. 6VPL AY, REC, REC PAUSE : 0V
REC: 0V
OTHER: 0. 6V
4.5V
4.2V
0.1V
0.2V 0.2V 0.2V
4.5V
4.7V
0.6V
2.6V
12.2V
2.7V
2.6V
6.1V
6.0V 0.2V
6.0V 6.0V
6.0V 0.2V
12.8V
X28- (G/8)
X28-278x-xx A/8
CN6
CN5
CN2
REC IN
PLAY OUT
J1
J2 WH2
Q1
Q2
IC7
IC7
Q3
Q4
Q50
D3
CN3
Q51
Q52
L
R
IC3
HX - PRO
Q26
Q53
IC5
IC5
Q9
Q10
Q6
Q8
IC4
Q7
Q5
Q18 Q16
Q17 Q15
Q27 Q28
Q24 Q25
B MECHA
IC4
J6
1/2
2/2
J4
CN13 1/2
2/2
1/ 2
2/2
D2
*
*
**
*
**
Q49
**
*
*
*
**
*
**
*
*
*
*
*
***
*
*
*
*
*
*
*
*
*
*
Q29
Q31
Q33
Q35
Q30
Q32
Q34
Q36 Q38
Q40Q39
Q37
**
*
*
*
*
*
*
*
*
*
Q41 Q42
Q43 Q44
D68
D69
D70
D71
D72
D35
D75
D36
D73
D74
D76
D77
J8
J9
J5
KX- W6080
CN2
KX- W4080
B MECHA
A MECHAA MECHA
Rc h( RED )
Lch(WHITE)
COM( BLUE )
Rc h( RED )
Lch(WHITE)
E(GRAY)
E(YELLOW)
COM( BLUE )
PH RPEH
IC2
J14
J12
J13
ERASE
B PB
A PB
IC1
IC2
IC3
IC4,5
IC6
IC7
IC8
IC9
IC10 :XL24C01AP
: CXP82540- 136Q
: HA12167FB
: UPC1297CA
:TA8125S
: NJM4558D
: S-806D-Z
: BA17812T or
UPC7812AHF
: BA10393
Q1~4, 15, 16
Q5~12,19, 20,22
26~28, 43,44
48~50, 53,65~68
Q13, 14, 17, 18
Q23~25
Q29~36, 51, 52, 54
Q37~40
:2SD1450(S,T)
UN4212
: DTC124ES or
UN4112
: DTA124ES or
:2SC3311A(Q,R)
: 2SC1845(F, E)
: 2SC2003(L, K)
Q41, 42
Q47 :2SA992(F,E) : 2SA1534A(R, S)
D2, 3, 5, 6, 10~12
D7
:1SS133 or
HSS10 4
:HZS6.8N(B2) or
RD6. 8ES( B2 )
D8
D9,20
D13
D18
: HZS13N(B2) or
RD13ES(B2 )
:HZS5.6N(B2) or
RD5. 6ES( B2 )
:HZS3.9N(B2) or
RD3. 9ES( B2 )
D4 : D3SBA20F03 or
RBV-402LFA
SELECT
R/P
A/B
HI.EQ
LINE MUTE
BUFF
LINE MUTE
LEVEL AMP S/W
LINE
MUTE
DRI VE
REC
MUTE
DRI VE LEVEL AMP SW
REC
MUTE
SW
OSC
21,45, 46,58
Q55 : 2SD2374
Q57 : 2SA1535A
Q56, 59, 60, 63, 64 : 2SC3246
Q61, 62 : 2SA1309A(Q, R) or
or
2SA1048(Y, GR)
14~17, 19,21~30
:HZS20N(B
)or
RD20ES( B)
D37 :HZS2.7N(B2)
or
RD2. 7 ES( B2 )
67~77
PHONES
SYSTEM IC
HEAD
Rch
Lch
Rc h
Lch
Lch
Rch
2SC2458(Y,GR)
33~36,46, ,
R81 2K
A.REC
PLAY
GND
A. Cr O2
MOTOR
COM
+12V
M(B)
M(A)
PHA
R
G
L
L
R
L
R
1
3
2
4
R171R172
C115
C116
R170
R169
C117
R168 R167
R163
C113 10µ50
C114
R164
R166
R165
R173
R161
R162
R1
100
R2
100
R7
R5
R6
R8
1K
3.9K
3.9K
1K
C3 10µ50
C4
10µ50
R3 C1 R4 C2
18K 2700P 18K 2700P
R175
R176
10K
R11
R9R10
100K 100K
R17R18
100K100K
R12
10K
C118
100µ10
C5
10µ50
C6
10µ50
12
3
4
5
6
7810K
R15
R13
3.9K
R14
3.9K
R16
10K
R
G
L
-EH K2
L6
L5
3
2
14
5
3
2
14
5
VCA
PRE
10
11
12
VCA DE T
PEAK ABSO
DE T
COMP.
7
8
DRIVER THERMAL DETECTING
PROT ECT IO N C I RC U IT STAOILIZING POWER SOURCE
PEAK
DET ABSO DET
COMP.
569 C101 0. 01 4
C99
0. 022
15 C100 0. 0 22 13 1418 C102 0. 01
1
2
3
16
17 R136
33K
R135
33K
C96
0. 01
C95
0. 01
560PC97
C98 560P R134
220K
R160 22K
L9
6
4
1
2
3
5
680P680P
R31R32 150K150K
C19
C20
C22
C21
10µ50
47µ16
47µ16
10µ50
R33
180
C25
C26
390P
390P
R35
R36
6.2K
6.2K
R37
R38
150K
150K
C27
C28
0. 022
0. 022
1
23
4
56
7
8
C119
C120
330µ16
100µ16
R178
R179
1K 1/4W
1K 1/4W
R28
150K
C18
0. 022
R26
6.2K
C12
390P
C10
10µ50
C16
47µ16
R22
180
C14
R24 220K
330K
R20
C8
220P
8
76
5
C7
220P
330K
R19
R21
180
C13
R23
220K
C9
10µ50
C15
47µ16
C11
390P
R25
6.2K
C17
0. 022
R27
150K
4
3
2
1
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 46 47 48 49 50 51 52 53REC OUT
+
-
LMA
RECT
EQ VOL
REC
EQ
5BIT
DAC
+
-
LMA
5BIT
DAC
REC
EQ
EQ VOL
RECT
REC OUT
SW
IIL
LOGIC
C
M
M
BIAS
ADJ
INJ
5BIT
DAC
GND
COUT
BIAS(L)
Vcc
5BIT
DAC
BIAS(R)
EQ-
CONTROLER
HC HN NM NC NN
FM
FQ
F/ Q
GH
GL
GP
HM
D-GND
ON / OF F
C/O NPX
RESET
R123
R90
R89 62K
C81 0. 1µ50
R79 100K
R88 10K
C79 18P
C80 18P
R80
C82 100K 0.1µ50
R83
10K
R82
R84
10K
R85 5. 6K
R86 5. 6K
R87 5. 6K
C78 56P
R78 56K
C70 2.2µ50 C75 2.2µ50 C76 2.2µ50 C77 2.2µ50
R76 5. 6K
C68 1µ50
C66 2. 2 µ50
C64 0 . 1µ50 C62 1 0µ50
R70
10K
R62R60
5.1K
R72
220K
R68
3.9K
R74 4 7K
R93 24K
C69 2.2 µ50
C67 1µ50
R67
3.9K
R69
10K
R71
220K
R61
R75 5. 6K
R77 56K
R73
47K
C65 2.2µ50
C63 0 .1 µ50 C61 10µ50
10mHL2
L1 10mH
C88 220P
C87 220P
R39 R40 1.5K
1.5K
R30 1. 5K R29 1. 5K
R65
10K
1
2
3
MOTOR
B
A
+
–
1.5K
Rch
Lch
GND
PHOTO REFLECTOR
4
5-EH
+EH
560560
10
10
33µ16
560560 56K56K
3.3K
47K
47K
10µ50
( 8~10)
(22,23)
NC
KXF-W6010 : D 4 0 - 1473 - 0 5 22KR174
R91 10K
C86
330µ16
ERASE
HEAD
100K
15 1/ 4W
R177
47µ16
18K
18K
47µ16
N. NOR N. Cr o 2 H.NOR H. C ro2
R59
5.1K
22K
R122
R121
R120
R119
R118
R117
R116
R115
R114
R113
R112
R111
R110
R109
R108
R107
R106
R105
R104
R103
R102
R101
R100
100K56K100K
39K
36K
33K
18K
56K56K75K82K
39K 39K 18K
18K33K18K
27K 39K 27K
27K 51K 22K
2K
100K
22K
43K
43K
C23
180
R34
C24
-EH
K1
W65
W61
10KR126
10KR125
15K
15K
R129
R130 15KR128 15KR127
R137
4. 7K
R139
4. 7K
R141
4. 7K
R143
4. 7K
R138
4. 7K
R140
4. 7K
R142
4. 7K
R144
4. 7K
W222
W223
SOL
R. REC
PACK
NC
NC
B. PLAY
GND
B. Cr O2
MOTOR
COM
+12V
M(B)
M(A)
PHB
SOL
R. REC
PACK
NC
NC
B. REC
220P
C92
*
*
*R132 220K
C103
10µ50
R133 220K
220K
R131
W224
W227
W29
1.2K
1.2K
R146
R148
1.2K
1.2K
R147
R145
10P 500C105 10P 500C104
0. 047C142 0. 047C152
C111 C112 0. 01
0.01
5.6K 5.6KR151 R152
22KR149 22KR150
10K
R219
10K
R220
SOL.
FWD REC
PLAY
CrO2
RVS REC
PACK
B. PLAY
GND
B.CrO2
MOTOR
COM
+12V
M(B)
M(A)
PHB
SOL
R. REC
PACK
NC
NC
B. REC
1
2
3
4
5
1
2
3
4
5
2
3
1R
G
L
1
2
3
MOTOR
B
A
+
–
1.5K
Rch
Lch
GND
PHOTO REFLECTOR
4
5-EH
+EH
KXF-W4010 : D 4 0 - 1473 - 05
ERASE
HEAD
SOL.
FWD REC
PLAY
CrO2
RVS REC
PACK
B. PL AY
GND
B.CrO2
MOTOR
COM
+12V
M(B)
M(A)
PHB
SOL
R. REC
PACK
NC
NC
B. REC
1
2
3
MOTOR
B
A
+
–
1.5K
Rch
Lch
GND
PHOTO REFLECTOR
4
5-EH
+EH
KXF-W6010 : D 4 0- 1450 - 0 5
ERASE
HEAD
SOL.
FWD REC
PLAY
CrO2
RVS RE C
PACK
PLAY
GND
B. Cr O2
MOTOR
COM
+12V
M(B)
M(A)
PHA
SOL
R. REC
PACK
NC
NC
A. REC
1
2
3
MOTOR
B
A
+
–
1.5K
PLAY HEAD
Rch
Lch
PHOTO REFLECTOR
KXF-W4010 : D 4 0 - 1451 - 0 5
SOL.
PLAY
CrO2
PACK
Rch
Lch
GND
PLAY
GND
B. CrO2
MOTOR
COM
+12V
M(B)
M(A)
PHA
SOL
R. REC
PACK
NC
NC
A. REC
R/P HEAD
Rch
Lch
R/P HEAD
Rch
Lch
R/P HEAD
Rch
Lch
1/4W
15
R254
+EH
+EH
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
2
3
4
(23) (22)
(19)
(10)
(9)
(8)
(27)
(18) (17)
(16)
(15) (14) (42) (43) (79) (80)
(25)
(24)
TO CN2
TO CN5
TO CN3
TO CN6
(76)
(74)
(76)
(74)
C165 0.01
0.01C164
W51
C94
220P
C90
220P
C91
C93
C89
220P
W47
+
–
+
–
+
–
+
–
+
-
+
–
(1)
(2)
(2) (1)
(1) (2)
(1) (2)
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
CAUTION: For continued safety, replace safety critical components only with manufacturer's
recommended parts (refer to parts list). indicates safety critical components. For continued
protection against risk of fire, replace only with same type and rating fuse(s). To reduce the risk of
electric shock, leakage-current or resistance measurements shall be carried out (exposed parts are
acceptably insulated from the supply circuit) before the appliance is returned to the customer.
DOLBY and the double-D symbol are trademarks of Dolby
Laboratories Licensing Corporation. Noise reduction circuit made
under license from Dolby Laboratories Licensing Corporation.
The DC voltage is an actual reading measured with a high impedance type voltmeter with a cassette
loaded at playback mode. The measurement value may vary depending on the measuring
instruments used or on the product. Bias circuit DC voltage is measured while in the record mode.
CT-203/KXFPCB/SD 2P 98.4.250:12 PM y[W 2

K M O Q SL N P R T
- 19. 5V - 44. 0V
12. 8V
- 19. 5V
4. 9V
4. 9V
4. 9V
3. 6V
24. 7V11. 9V
19. 4V 24. 0V
4. 9V
4. 9V
0V
4. 6V
28. 6V
0. 6V
- 13. 2V
- 19. 5V
- 36. 2V - 11. 5V
13. 7V
0V
8. 7V(REC)
- 13. 4V
28. 6V
- 13. 7V
- 19. 5V
0. 4V
0. 4V
OTHER:12.4V
REC:0V
OTHER:0V
REC: 4 .9V
0V 0V 2. 4V
4. 9V
4. 8V
0V 4. 9V
0V 0V
4. 9V
4. 9V
4. 6V
REC: 4. 9V
400: 4 . 9V 12. 5K: 0V
ON: 0V OTHER: 4 .8 V
2. 5V
2. 5V
0V
0. 6V
0. 6V
4. 6V
4. 6V
OTHER: 0V
5. 0V
5. 0V
4. 9V
4. 9V
2. 2K
2. 2K
5. 0V
0V
5. 0V
0V
4. 9V
HI SPEED
: 0V
NORMAL
SPEED
: 4. 9V
HI SPEED: 11. 9V
NORMAL SPEED: 0V
B. MOTOR
ON: 0. 7V
OFF:0V
HI SPEED
: 0V
NORMAL
SPEED
: 4. 6V
A. MOTOR
ON: 0. 7V
OFF: 0V
REC: 0V
OTHER
DUBBING
: 0. 7V
REC: 0V
OTHER
DUBBING
: 0. 7V
A. PLAY: 4.8V
NORMAL SPEED
OTHER: 0V
HIGH SPEED
6. 0V 6. 0V
0. 3V
6. 0V
6. 6V
6. 6V
6. 0V
6. 6V
6. 6V
6. 0V
6. 6V
6. 6V
6. 0V
5. 8V
6. 1V
6. 0V
6. 0V
6. 0V
1. 9V
1. 7V
6. 0V
6. 0V
6. 0V
6. 0V
6. 1V
6. 2V
6. 2V
6. 2V
6. 1V
1. 7V
1. 8V
4. 9V
+ B L I NE
- B L I NE
100µ16
0.1
X28 - ( C/ 8 )
X28- ( F/ 8 )
A
SI GNAL L I NE
GND L I NE
X28- 278x- xx
RE CORDI NG L I NE
X2 8- (H/ 8 )
X2 8- (C/ 8 )
X2 8- (H/ 8 )
Q45
Q46
Q47
Q48
Q19
Q21
Q22
Q14
BOTTOM V I EW
µ-COM
I C6
I C6
Q67 Q68
D37
Q66
D17 D16 D15
D14
D20
D18
Q57
IC9
D19
Q56
D4
CN4
D12 D11 D10
D13
D6 D5
WH5 WH4 WH3
J3
SYSTEM
D23
D24
D26
D25
D30
D29
D27
D28
Q20
Q23
Q13
I C10
P-ROM
D21
I C8
D22
Q58
CN1
CONTROL
I C1
D7
A
NOR SP
Cr O2: ON
CN7
D9 D8
Q55
Q54
1/ 2
2 / 2
Q62
D34
Q60
Q64
Q61
D33
Q59
Q63
Q65
Q12 Q11
D67
2/ 2
TO X28 CN8
J7
( M T YPE )
WH6 WH7
CN1
WH6 WH7
( K, E TYPE )
WH1
PH DET
(SYSTEM I C OSC, PBEQ)
PHONE
+12V AVR
RESET
REC MUTE
70µSW
400 / 12. 5 K
SELECT OSC LEVEL
70µSW POWER SUPLLY
A. N / H SW
TEST MODE
UNIT NO.
MODEL
NAME ABB.
DESTINATION
COUNTRY
EUROPE
GENERAL MARKET
USA
K1
Q29~4 4, 49
D2
13 2, 137 ~144
R127, 128, 131
C93, 9 4
UNIT NO.
MODEL
NAME ABB.
F1
CN14, 15 W221
111, 142 ,
C8 9, 90, 105
C13, 14
0 -10
2 -71
0 -21
EUROPE
GENERAL MARKET
USA 0 -11
2 -72
0 -22
YES470P 2 2 0P
NO680P 1 5 0P
0 -10
2 -71
0 -21
0 -11
2 -72
0 -22
M
T, E, E1
K, P
Y, M
X,T,E,E1
K, P
NO
YES
YES
NO
YES
NO
NO
YES
YES
NO
222~224
W29, 47, 51
61,65
227
KXF-W6010/(E)
Y, M
X, T, E
K, P
Y, M
X, T, E
, E1
K, P
R262 W45
KXF-W4010/(E)
KXF-W6010/(E)
KXF-W4010/(E)
R262 8.2
*
*W45
CT-2050
CT-2050
CT-203
CT-203
C109
R157
C108
R156
C107
0. 01
22K 5600P
22K 5600P
R159 1 0 1 / 4 WR158 1 0 1 / 4W
R155
C110 180 1/ 4W 10µ50
1 2 3 4 5 6 7 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
DOLBY
B/C NR
(R-CH) 1 A
5BIT
DAC
E.VOL
GND
5BIT
DAC
E.VOL
DOLBY
B/C NR
( L- CH) 1A
Vref
C60 0 . 1µ50
C58 0 . 1µ50
C56 2200P
R58 560
C54 2200P
R64 C74
2. 2µ50
C72 10µ50
C52
2200P
22K
R56
L4
10mH
C50
220P
MPX
NC
R52 5. 6K
R50 2. 2K
R92 18K
C46
C42
C44
1µ50
1µ50
1µ50
MPX
NC
R51
5. 6K
R49 2. 2K
R63
C73
2.2 µ50
C71 1 0µ50
C59 0. 1µ50
C57 0. 1µ50
C55 2200P
R57 560 C53 2200P
R55
22K
2200P
C51
C49
220P
L3
10mH
R53 2 .2 K
0. 027
C47
R96
R97
C83
130K
6. 2K
3300P
0. 1 C84
R99
1. 2K
R98
11K
R94 22K
R48
3. 9K
C43 1µ50
C41 1µ50
C45 1µ50
C85 1µ50
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 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
6G
5G
4G
3G
2G
1G
VFDP
VDD
NC
A R/ P
ERASE
B R/ P
NC
CE
PHB
PHA
CW CCW NC IN MUTE
OSC OUT
S. BUSY
S. DATA
CLK STB DATA
400 / 12 . 5K
READ
NOR/A. BIAS
KR1 KR2 KR3 KR4 KR5 PLAY A/B
DATA
CLK R.MUTE L.MUTE LEVEL R
LEVEL L
70 HSP
BI AS
70 NSP
BSOL
RESET
EXTAL
XTAL
VSS
BCPM
BCSP
ASOL
ACPM
ACSP
S24
S23
X1
10MHz
R224 100K R226
R228 22K 150K
3
2
1
R223
100K R225
R227 22K 150K
5
6
7
C146
C147
1µ50
1µ50
R231
620
R204
10K
R190
R191
68 68
R189
22K
C139
10µ50
C138
10µ50
C137
220µ6 3
22K
R188
C136
100µ63
C135
47µ35
1
2
3
C134 C133
C131 0. 1
C126 100µ16
–
+
~
~
4
3
2
1
1K 1W
R180
C124
R186
10K
C128
100µ10
470µ6 . 3
C129
100K
R185
22µ35
C130
C123 3300µ35
S33
110 -120V
220 -240V
0. 022
C151 100K
R202
100K
R201
330
R198
330
R197
R199 100K
R200 100K
C30 C29 C31 C32
1µ50
1µ50
1µ50
1µ50
R54 2. 2K
C48
0. 027
R43 R44 27K 27K
R47
3. 9K
R232
22K
R233
22K
A0
A1
A2
VSS
VCC
NC
CLK
DATA
TEST1
A.ADJ.
R192 1K
C141 100µ10
R196 10K
R195
1K
C140
1µ50
R194
100K
REF
Vref
R66 10K
R45 27K
1µ50
C145
C122 0. 022
C148
0. 022
R221
10K
R222 10K
8
11
2 2
M.ADJ.
DATA
BUSY
1
2
3
4 5
6
7
8
1 2
3
L7
L8
1.8K
R95 22K
C39 220P R46 27K
C40 220P
1. 8K
SYSTEM IC
E2PROM
A MECHA
B MECHA
NC NC
S1 S2 S3 S4 S5 S6 S7 S8
KS1 /
KS2/ KS3/ KS4/ KS5 / KS6 / KS7 / KS8 / KS9 /
KS10 /
KS11 /
KS12 /
KS13 /
KS14 /
GRID
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
CW
CCW
KR3
KR2
KR1
F1
F2
1G
2G
3G
4G
5G
6G
S1
S2
S3
S4
S5
S6
S7
S8
S23
S24
GND
5V
R184
10
C127
10µ50
R183
1K
R182
10
C125
100µ16
R181
2. 7K
1 / 4W
10µ50
10KR193
R252 10K
GND
220P
C150 220P
C149
4
R230
110K
110K
R229
*
*
W220
W219
10K
R187
100µ1 0
C132
CN14CN15
F1
**
**
W221
R206
100K
R212
16K
22K(B )
VR4
1000P
C144
R214
20K
10K(B )
VR2
47K
47K
R210
R218
4. 7K
R208
4. 7K
R216
R205
100K
R211
16K
22K(B)
VR3
1000P
C143
R213
20K
10K(B )
VR1
47K
47K
R209
R217
4. 7K
R207
4. 7K
R215
R203
10K
R241 10K
R42
750
C38
0. 039
C37
0. 039
R41
750
C34 C33 C35 C36
3300P
3300P
3300P
3300P
5.6K
R153
5.6K
R154
10K
R124
100R242
R243
R244
R245
100 100 100
R250
R251 5.6K
5.6K
R246 100
R255 10K
R247 10K
R249 10K
R248 10K
R238 10K
R239 10K
R240 10K
CP2
47Kx5
1K
R253
115V
230V
POWER
TRANSFORMER
0. 8A 250
10 µ50
C155
1
2
3
4
1
2
3
4
100K
R260
/ KS1
/ KS2
/ KS3
/ KS4
/ KS5
/ KS6
/ KS7
/ KS8
/ KS9
/ KS10
/ KS11
/ KS12
/ KS13
/ KS14
( 38 )
( 37 )
( 36 )
( 35 )
( 34 )
( 29 )
( 38 )
( 37 )
( 36 )
( 35 )
( 34 )
( 29 )
( 27 )
( 26 )
( 2 3 )
22
( 2 2 )
( 1 9 )
( 1 0 )
( 9 )
( 8 )
( 1 3 )
( 1 1 )
( 5 )
( 7 5 )
( 13 )
( 1 1 )
( 5 )
( 7 5 )
( 26 )
( 21 )
( 20 )
(18) (17) (16) (15) (14)
( 7) ( 6)
( 21 )
( 20 )
( 43 )
( 79 )
( 80 )
( 24 )
( 25 )
S22
S21
S20
S19
S18
S17
S16
S15
S14
S13
S12
S11
S10
S9
S22
S21
S20
S19
S18
S17
S16
S15
S14
S13
S12
S11
S10
S9
( 38 )
42
0. 01
C106
0. 01
C163 C158
C162
0. 01
0. 01
0. 022
C121
S1
0. 068
C157
TF
11
2 2
115V
230V
POWER
TRANSFORMER
S1
0.068
C157
TF
W204
R261
8. 2
1/4W
C156
0. 01
4
5
6
7
123
456
12 3
456
+
–
+
–
I NOU T
GND
( 7 )
( 6 )
( 1 ) ( 2 ) ( 3 ) ( 4 )
(62) (61) (60) (59) (58) (57) (56) (55) (54) (53) (52) (51) (50) (49) (48) (47) (46) (45) (44) (41) (40) (39)
(65)
(66)
(67)
(68)
(69)
(70)
(70)
(69)
(68)
(67)
(66)
(65)
(62)
(61)
(60)
(59)
(58)
(57)
(56)
(55)
(54)
(53)
(52)
(51)
(50)
(49)
(48)
(47)
(46)
(45)
(44)
(41)
(40)
(39)
( 6 ) ( 5 ) ( 8 ) ( 7 )
KXF-W4010(CT-203)
/W6010(CT-2050)(K) (1/2)
Y26-4360-10
CT-203/2050/KXF-W4010/W6010
CT-203/KXFPCB/SD 2P 98.4.250:12 PM y[W 3

UV X Z AB ADW Y AA AC
2
1
3
5
7
4
6
3G2G1G
4G
a
b
c
d
e
fg
h
i
j
k
l
mn
S1S2 S3 S4
S5
S6
S7
S1
S2 S3
S4
S5 S1S2
S2 S1
S11S12S13S 14S15S16S 17S2 3S22S21S20S19S18
S24
S24 S18 S19 S20 S21 S22 S23 S 17 S 16 S11S12S13S 14S15
S3 S4 S5 S6 S7 S8 S9 S10
S1
S2
S3 S4
S1S2 S3 S4
S5
S24
S23
S20
S18
S19
S22 S21 S12
S15
S17
S16
S13 S14
S11
5G 6 G
S5
NORMAL HIGHDUBBING
-15 - 10 - 6 -3 0 +2 +4(dB) +6-°
DOLBY NR B C S AUTO BIAS
RELAY
LE VE L
STANDBY
BIAS L E VE L
CCRS
MPX
BAL . B I AS
X28 - 2 78 x - x x ( B / 8 )
A
ED1
R
L
a
a
CN8
d e c g f b k l j n m i h o p
d e c g f b k l j n m i h o p
D41 D47
D49 S12 S13
D51 S17
D42
D53 S15
D43 S6
D44
D45
D39
S7
S8
S2
D56 S21
S4
S5
D54 S18
D52 S16
D46 S19
D57 S22
S20
D80 D81
D40 S3
S9
D55
S10
S14
D50
D66
D48
1/ 2
TO X 28
CN7
S31
*WH8
DIRECTION
HIGH DUBB NOR. DUBB
B
B
B
MODE
A
A
AUTO BIAS
A
COUNTER RESET A
RELAY REC
CCRS
DOLBY
COUNTER RESET B
TIMER
REC PLAY
MPX
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
CW
CCW
KR3
KR2
KR1
F1
F2
1G
2G
3G
4G
5G
6G
S1
S2
S3
S4
S5
S6
S7
S8
KS1 / S9
KS2 / S10
S23
S24
GND
5V
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 46 47 48 49
F1 F1 F1 NP 1G 2G 3G 4G 5G 6G NP NP NP NP NP NP NP NP NP NP NP S1( p )
S2( o )
S3 S4 S5 S6 S7 S8 S9 S10 S11( h )
S12( i )
S13( m ) S14( n ) S15( j )
S16( l )
S17( k ) S18( d ) S19( e ) S20( c ) S21( g ) S22( f ) S23( b ) S24( a ) F2 F2 F2 NP
10 0 10 K
R234 R236
0. 0 1C153
100 1 / 4W
R235
10KR237 0. 0 1C154
S32
10 K 10K
R258
R2 59
C1 61 0 . 01
KS3 / S11
KS4 / S12
KS5 / S13
KS6 / S14
KS7 / S15
KS8 / S16
KS9 / S17
KS 10 / S 18
KS 11 / S 19
KS 12 / S2 0
KS 13 / S2 1
KS 14 / S 22
0.01µ16
*C166
* *
****
**
**
**
*
*
*
*
D1
CT-203/KXFPCB/SD 2P 98.4.250:12 PM y[W 4