KENWOOD KXFW4030 Service Manual

Cover page of KENWOOD KXFW4030 Service Manual

Service Manual for KENWOOD KXFW4030, downloadable as a PDF file.

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Sample pages

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STEREO DOUBLE CASSETTE DECK
CT-405
KXF-W4030/W4030-S/W4030E
SERVICE MANUAL
© 2000-3/B51-5604-00 (K/K) 3037
TAPE
A
AUTO REVERSE
TAPE
B
AUTO REVERSE
POWER
PHONES
TIMER PLAY
REC OFF PLAY
MODE
REC LEVEL/BAL
/BIAS
- ON ­ OFF
1
23
7
¡1
¡
8PAUSE REC/ARM
0
23
7
RESET A
MIN/L
MAX/R
DOLBY NR REV.MODE NORM.DUBB HIGH DUBB MPX FILTER
CCRS
AUTO BIAS RESET B
0
PLAYBACK
RECORDING
PLAYBACK
LINE IN
REC
PLAY
LINE OUT
SYSTEM CONTROL
L
R
Knob(POWER) *
(K27-)
Cassette door ass'y *
(A53-)
Display window
(B03-3870-08)
AC power cord *
(E30-)
RCA jack
(E63-1076-08)
Phone jack
(E11-0918-08)
Front panel ass'y *
(A60-)
Control button *
(K27-)
Metallic cabinet *
(A01-)
* Refer to parts list on page 18.
Knob(TIMER) *
(K27-)
Knob(ROTARY)*
(K27-)
Cassette door ass'y *
(A53-)
Knob(EJECT)
(K27-2431-08)
Knob(EJECT)
(K27-2431-08)
H/P jack
(E11-0925-08)
AC power cord bushing*
(J42-0083-05)
70%
background image
STEREO DOUBLE CASSETTE DECK
CT-405
KXF-W4030/W4030-S/W4030E
SERVICE MANUAL
© 2000-3/B51-5604-00 (K/K) 3037
TAPE
A
AUTO REVERSE
TAPE
B
AUTO REVERSE
POWER
PHONES
TIMER PLAY
REC OFF PLAY
MODE
REC LEVEL/BAL
/BIAS
- ON ­ OFF
1
23
7
¡1
¡
8PAUSE REC/ARM
0
23
7
RESET A
MIN/L
MAX/R
DOLBY NR REV.MODE NORM.DUBB HIGH DUBB MPX FILTER
CCRS
AUTO BIAS RESET B
0
PLAYBACK
RECORDING
PLAYBACK
LINE IN
REC
PLAY
LINE OUT
SYSTEM CONTROL
L
R
Knob(POWER) *
(K27-)
Cassette door ass'y *
(A53-)
Display window
(B03-3870-08)
AC power cord *
(E30-)
RCA jack
(E63-1076-08)
Phone jack
(E11-0918-08)
Front panel ass'y *
(A60-)
Control button *
(K27-)
Metallic cabinet *
(A01-)
* Refer to parts list on page 18.
Knob(TIMER) *
(K27-)
Knob(ROTARY)*
(K27-)
Cassette door ass'y *
(A53-)
Knob(EJECT)
(K27-2431-08)
Knob(EJECT)
(K27-2431-08)
H/P jack
(E11-0925-08)
AC power cord bushing*
(J42-0083-05)
70%
background image
CT-405/KXF-W4030
2
CONTENTS / ACCESSORIES
CONTENTS / ACCESSORIES .................................. 2
BLOCK DIAGRAM ......................................................3
CIRCUIT DESCRIPTION ............................................4
ADJUSTMENT ............................................................6
PARTS DESCRIPTIONS ............................................7
PC BOARD ................................................................ 8
SCHEMATIC DIAGRAM .......................................... 11
EXPLODED VIEW ....................................................17
PARTS LIST..............................................................18
SPECIFICATIONS ....................................................21
Contents
Audio cord
(E30-0505-05)
........................ (2)
System control cord
(E30-2816-05)
............ (1)
Accessories
background image
(JK01)
PLAY HEAD
(CN01)
REC/PLAY HEAD
ERASE (CN02)
RELAY
(REC/PB)
PRE AMPLIFIER
DECK A/B
(IC1 TA7784)
SYSTM CONTROL
(JK02)
(Q06)
R/P SW
(Q19,21
SPEED N/H CONTROL
DECK B)
(Q20,22
DECK A)
(Q54,55
(Q56,57
SOL. SW
DECK B)
DECK A)
DECK
A
(CN06)
(CN07)
DECK
B
(Q51,52
(Q50,53
MOTOR VOLTAGE SW
DECK B)
DECK A)
EQ AMPLIFIER
(IC20 CXA1598S)
(IC16 TC4051BP)
EQ SW
AUTO-BIAS LEVEL SW
(Q34-Q36)
(IC14 UPC1297CA)
DOLBY HX-PRO
(Q23,24)
ERASE OSC (105kHz)
(Q27,28)
BIAS ON/OFF SW
(Q25,26)
ERASE ON/OFF SW
CPU
(IC11 LC866524A-5P85)
ELEC. VOLUME CONTROL
(IC3 TC9413AP)
LINE AMPLIFIER
(IC5 NJM4558D)
(IC4 CXA1561S)
DOLBY B/C NR
(Q15,16)
MPX SW
DOLBY SW
(Q17,18)
(IC18 NJM4558D)
LEVEL METER AMP
RESET
(IC19 S806D)
(IC12 S-24C01)
EEPROM
PHOTO DETECTOR
(IC6 BA10393)
HEADPHONES JACK
(JK300)
CN08
HEADPHONES AMP
(IC17 NJM4556AL)
400/12.5K
(Q33)
AUTO BIAS F. SELECT
(Q07A,07)
SW
AUTO BIAS IN
REC/PLAY SW
CN09
CN05
ENCODER SW
CN04
KEY CONTROL
FLD DISPLAY
POWER TRANS
CN03
(D01 GBL02)
DC RECTFIRE
+12V REGULATOR
(IC9 NJM7812FA)
(IC8 NJM7808FA)
+8V REGULATOR
(IC10 NJM78M05)
+5V REGULATOR
(IC7 NJM79M08)
-8V REGULATOR
(Q14)
-20V REGULATOR
LINE IN
LINE OUT
PLAY A/B SW
TYPE I/II SW
REC O/P
SENS/PLAY/CrO2/REC(FWD/REV)
REC MUTE
AUTO BIAS F. SELECT
AUTO BIAS IN
400/12.5K F/O
Ef AC(FLD)
LINE O/P
LINE
IN
MUTE
CK/STB/DA
T
A
LINE
O/P
MUTE
KXF-W4030/CT-405
3
CT
-405/KXF-W4030
BLOCK
DIAGRAM
background image
4
CT-405/KXF-W4030
CIRCUIT DESCRIPTION
Pin
Pin Name
I/O
Description
ACTIVE
No.
HL
1
AUTO BIAS IN
O
Auto bias control port.
A BIAS
Other
2
400/12.5K ,F/O
O
400Hz/12.5kHz freq. output.
3
R/P HEAD
O
Control port for recording/playback.
Recording
Other
4
REC MUTE
O
Audio muting control on R/P for B deck.
Off
On
5
LINE/O MUTE
O
Audio muting control for line out.
Off
On
6
B MECH VCC
O
B mecha. solenoid control.
Other
Stop
7
A MECH VCC
O
A mecha. solenoid control.
Other
Stop
8
B SOL
O
B mecha. solenoid control.
On
Off
9
A SOL
O
A mecha. solenoid control.
On
Off
10
IN/MUTE
O
Audio muting control for input.
Off
On
11
AC CHK
I
Power failure input.
AC On
AC Off
12
RESET
I
Reset signal input.
13
NC
-
Unused.
14
ENCODER IN B
I
Encoder input B.
15
VSS
-
Connected to ground.
16,17
CF 6MHz
-
Main clock(6.0MHz).
18
VDD
-
Power supply.
19-22
K1-K4
I
Key input(k1-k4).
23
TIMER P/R SW
I
Timer Play/Rec switch input.
24
CCRS LEVEL
O
CCRS level control port.
25
LEVEL MTR L/IN
I
Level meter input (Lch).
26
LEVEL MTR R/IN
I
Level meter input (Rch).
27
NC
-
Unused.
28
ENCODER IN A
I
Encoder input A.
29
-
-
Connected to system cont. data.
30-35
FLD 1G-6G
O
FLD grid control port(1G-6G).
36-45
FLD P1-P10
O
FLD segment control port(S1-S10).
46
VDD
-
Power supply.
47-50
FLD P11-14
O
FLD segment control port(S11-S14).
51
-VPP
-
FLD power supply(-26V).
52-61
FLD P15-24
O
FLD segment control port(S15-S24).
62
A CrO2 SW
I
A CrO2 switch input.
Type 2
Type1
63
A PLAY SW
I
A play switch input.
Stop
Play
64
A SENS. PULS
I
A photo sensor input.
65
A PACK SW
I
A pack switch input.
Tape No
Tape Yes
66
B CrO2 SW
I
B CrO2 switch input.
Type 2
Type 1
67
B SENS. PULS
I
B photo sensor input.
68
B PACK SW
I
B pack switch input.
Tape No
Tape Yes
69
B PLAY SW
I
B play switch input.
Stop
Play
70
REC FWD SW
I
Forward recording switch input.
71
REC REV SW
I
Reverse recording switch input.
72
VDD
-
Power supply.
73
MPX FILTER
O
MPX filter ON/OFF control.
74
REC FILTER
O
MPX filter ON/OFF control.
75
REC EQ
O
Rec EQ.(I/II) Control.
I
II
76
SPEED N/H
O
B motor speed (normal/hi) control port.
Nor
Hi
77
DOLBY NR B/C
O
Control port for dolby NR(B/C).
78
DOLBY NR ON/OFF
O
Dolby NR ON/OFF control port.
79
A MOTOR SPEED
O
A motor speed (normal/hi) control port.
Nor
Hi
80
P.B EQ
O
P.B EQ. Control.
81
MTR AMP GAIN A
O
Gain control of level meter amplifier.
82
MTR AMP GAIN B
O
Gain control of level meter amplifier.
1. Pin description of microprocessor
background image
CT-405/KXF-W4030
CIRCUIT DESCRIPTION
5
Pin
Pin Name
I/O
Description
ACTIVE
No.
HL
83
AUTO BIAS F SEL.
O
Auto bias frequency selection 8LPF).
400Hz
12.5kHz
84
ERASE OSC ON/OFF
O
Erase OSC(ON/OFF) control.
Recording
Other
85
BIAS OSC ON/OFF
O
Bias OSC(ON/OFF) control.
86-88
BIAS L1-L3
O
Bias level control output.
89
VSS
-
Connected to ground.
90
VDD
-
Power supply.
91
NC
-
Unused.
92
PLAY A or B
O
A/B deck control port.
A Playback
Other
93
NC
-
Unused.
94
EE PROM SCL
O
EE PROM SCL.
95
EE PROM SDA
O
EE PROM SDA..
96
SYSTEM CONT.BUSY
O
System control byusy.
97
SYSTEM CONT.DATA
O
System control data.
98
TC9413AP DATA/O
O
Data output to E. volume.
99
TC9413AP STB/O
O
Strobe output to E. volume.
100
TC9413AP SCK/O
O
Clock output to E. volume.
Pin No.
Pin Name
Type I N.Sp
Type I H.Sp
Type II N.Sp
Type II H.Sp
75
Rec E.Q. I/II
H
H
L
L
76
Speed N/H
H
L
H
L
PORT
SW1
SW2
SW3
SW4
SW5
SW6
(PIN19)
A REV
A FWD
A
A
RESET
-
K1
PLAY
PLAY
REW
FF
A
(PIN20)
B REV
B FWD
B
B
REC/
MODE
K2
PLAY
PLAY
REW
FF
REM
(PIN21)
A
B
PAUSE
CCRS
AUTO
RESET
K3
STOP
STOP
BIAS
B
(PIN22)
DOLBY
REV
NOR
HI
MPX
-
K4
MODE
DUBBING DUBBING
FILTER
2. Key matrix
3. Description of R/P output for microprocessor.
( ) Microprocessor port
Pin No.
Pin Name
Description
3
Rec/P.B
B Mecha. Recording Mode : H
Other : L
4
Rec Mute
B Mecha. Recording /Playback Mode : H
Other : L
5
Line Mute
A/B Playback or B Recording : H
Other : L
80
P.B EQ. 70
Tape Type II : H
Other : L
1
Rec Input Select
Auto Bias Recording : H
Other : L
83
A. Bias F Select
Auto Bias 400Hz Recording : H
Other : L
85
B OSC On/Off
Recording/Playback : H
Other : L
81
M. Amp Gain 1
P.B/Recording/Dubb. : H
Other : L
82
M. Amp Gain 1
Auto Bias : H
Other : L
Pin No.
Pin Name
Rec.M.Fil On
Rec.M.Fil Off
Other
73
MPX Filter
L
H
H
74
REC Filter
L
L
H
Pin No.
Pin Name
Dolby C
Dolby B
Off
77
Dolby B/C
L
H
H
78
Dolby On/Off
L
L
H
* Filter off when dubbing mode.

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