Kenwood KE-205 User manual

LINE
IN OUT
R
L
AC 110-120V~AC 220-240V~
UNSWITCHED 200W MAX.
7 BAND DUAL EQUALIZER
POWER
ON OFF
0
+10
-10
0
+10
-10
60Hz 150Hz 400Hz 1kHz 2.4kHz 6kHz 15kHz
0
+10
-10
0
+10
-10
60Hz 150Hz 400Hz 1kHz 2.4kHz 6kHz 15kHz
STEREO GRAPHIC EQUALIZER
KE-205
SERVICE MANUAL
©1998-5/B51-5429-00 (K/K) 1396
KENWOOD badge
(B43-0302-04)
Foot rubber
(G16-0919-08)x4
Knob (Power)
(K27-2328-08)
Foot
(J02-1424-08)x4
Top cover
(A01-3654-08)
Slide switch*
(S90-0128-08)
AC power cord
(E30-2895-08)
Power cord stopper
(J42-0341-08)
AC outlet
(E03-0351-08)
RCA jack
(E70-0036-08)
Knob (Slide)
(K27-2329-08)
Knob (Slide)
(K27-2329-08)
Front panel
(A60-1552-08)
* Refer to parts list on page 5.
KE-205 98.11.305:07PM y[W 2

Refer to the schematic diagram for the value of resistors and capacitors.
E
2
ABCD
2
1 3 5 7
4
6
1
11
1
11
111 1
E B
E B
E B
E B
E B
E B
E B
E B
E B
E B
E B
E B
E B
E
POWER
B
11
LINE
OUT IN
PC BOARD(Component side view)
KE-205 98.11.305:07PM y[W 1

ACEBD
2 1 3 5 7 4 6
KE-205
CN2
CN1
D101,102 : IN4002L
: 2SC1815GR
: NJM4558DX
Q1-7,51-57
IC1
D102
D101
IC1 (2/2)
JACK1
Rch
Lch
Lch
Rch
INPUT
OUTPUT
(1/2)
IC1
POWER
SW1
(Y) TYPE
SW3
(K,P) TYPE
D51D52D53D54D55D57 D56
CN2
CN1
D1D2D3D4D5D6D7
Q1Q2Q3Q4Q5Q6Q7
60Hz150Hz400Hz1kHz2.4kHz6kHz15kHz
60Hz150Hz400Hz1kHz2.4kHz15kHz 6kHz
Q51Q52Q53Q54Q55Q56Q57
-B LINE
+B LINE
13.7V
0V
0V
0V
0V
0V
-13.7V
-15.5V
-22.1V
-13.7V
13.7V
22.1V
15.4V
-0.7V-0.6V-0.5V-0.3V -0.4V-0.2V -0.4V
12.6V12.6V12.6V12.6V12.6V
-0.8V
12.6V
-1.4V
-0.5V
12.6V
-1.2V
-0.5V
12.6V
-1.1V
-0.3V
12.6V
-1.0V
-0.4V
12.6V
-1.1V
-0.3V
12.6V
-0.9V-0.9V
-0.2V
12.6V
-1.4V-1.2V-1.1V-1.0V-1.1V-0.9V-0.8V
12.6V12.6V
-B
+B
SIGNAL LINE
GND LINE
4
5
3
1
2
5
3
C
A
C
B
A
9 8 6 7 5 4 3
1
2
C107 0.047
2200u252200u25
PT1
R81 180K
R80
470K
470K
R30
470K
R79
R29
470K
AC110-120V
50/60Hz
R107
220 1/2W
R102
470
R108
220 1/2W
+
C104
2200u25
+
C103
2200u25
+
C105
+
C106
R33 82K
+
C65
1u50
R86
560
R82 330K
+
C66
4.7u50
R85
3.3K
R83 82K
R84
C67
3.3K
2
-
+
3
1
8
100P
C101 0.047
C109 0.047
C108 0.047
R31 180K
R32 330K
+
C16
4.7u50
560
R36
+
C15
1u50
3.3K
R35
C17
100P
R34
3.3K
+
-7
4
5
6
ON
OFF
C102
0.01
R101
470
FUSE
TH
AC220-240V
FUSE
TH
220-
240V 120V
110-
60Hz
AC120V
51K
R70
36K
R74
24K
R78
5.1K
R52
390
R53 R56
5.1K
390
R57
5.1K
R60
390
R64
5.1K
R61
390
R65
5.1K
R68
390
R69 R72
5.1K
390
R73
5.1K
R76
390
R77
R51
470
0.056
C52
470
R55
470
C54
0.033
C56
0.01
R59
470
R63
6800P
C58 R67
470
C60
2700P
470
R71
470
C62 C64
1000P
R75
1500P
C51
3.3u50
++
C53
1u50
C55
0.47u50
+
82K
R54
75K
R58
68K
R62
51K
R66
VR51VR52VR53VR55VR56VR57 VR54
11
10
10
11
978456321
11
10
11
10
9 8 7 6 5 4 3
VR1VR2VR3VR4VR5VR6VR7
2 1
C18 100P
123456789
+
3.3u50
C1
+
1u50
C3
+
0.47u50
C5
+
C7
0.15u50
5.1K
R4 82K
390
R3 R2
470
R1 C2
0.056
5.1K
R8 75K
390
R7 R6
470
R5 C4
0.033
5.1K
R12 68K
390
R11 R10
470
R9 C6
0.01
5.1K
R16 51K
390
R15 R14
470
R13
C8
6800P
5.1K
R20 51K
390
R19 R18
470
R17 C10
2700P0.068
C9
5.1K
R24 36K
390
R23 R22
470
R21
C57
+
0.15u50
0.068
C59 C61
0.01
C63
0.027
C12
1500P0.027
C11
R28 24K
C14
1000P
C13
0.01
R26
5.1K
R27
390
470
R25
C68 100P
+B +B +B
+B+B
+B+B+B+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B+B
+B
+B
+B+B
+B
B
B B B
BB
BBB
B
B
Y09-4260-00
KE-205
NJM4558DX
CAUTION: For continued safety, replace safety critical com -
ponents only with manufacturer's recommended parts (refer
to parts list). indicates safety critical components. For con-
tinued 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.
The DC voltage is an actual reading
measured with a high impedance
type voltmeter. The measurement
value may vary depending on the
measuring instruments used or on
the product.
KE-205 98.11.305:07PM y[W 3

KE-205
4
EXPLODED VIEW
Parts with exploded numbers larger than 700 are not supplied.
JK1
SW1 SW3
KE-205
A
B
C
D
ø3x8 (BLK)
ø3x6 (BLK)
ø3x8
M3x6
: N89-3008-45
: N89-3006-45
: N89-3008-46
: N30-3006-46
B
B
B
B
B
703
757
Bx2
Dx2
B
B
Bx2
C
C
C
C
C
C
A
614
601
615
616
626
640
727
759
758
704
625x2
625x2
610
630
602
605
631x7
631x7
620
620
1
2
AC
B
KE-205 98.11.305:07PM y[W 4

KE-205
5
PARTS LIST
601 1B ✽A01-3654-08 TOP COVER
602 2A ✽A60-1552-08 FRONT PANEL
605 2A B43-0302-04 BADGE,KENWOOD
- B46-0121-33 WARRANTY CARD P
- B46-0302-04 WARRANTY CARD K
-✽B60-3895-08 INSTRUCTION BOOK(E)
-✽B60-3896-08 INSTRUCTION BOOK(F) P
610 2B ✽D21-1906-08 POWER KNOB SHAFT
614 1A E30-0505-05 PATCH CORD BLK-1M
615 1C E03-0351-08 AC OUTLET HJC-030A1(P)
616 1C ✽E30-2895-08 AC CORD 6.5FT BLK SPT-2
620 2B,2C G16-0919-08 FOOT RUBBER
-✽H10-7494-08 SNOW BOX
-✽H50-2987-08 MASTER CARTON
625 2B,2C J02-1424-08 KENWOOD FOOT
626 1C ✽J42-0341-08 CORD STOPPER 5RF-B
630 2B ✽K27-2328-08 POWER KNOB
631 2A ✽K27-2329-08 SLIDE KNOB
640 1C ✽L07-2629-08 POWER TRANS EI-35 KP
640 1C ✽L07-2630-08 POWER TRANS EI-35 Y
C1 CE04KW1H3R3M ELECTRO 3.3UF 50WV
C2 CQ92FM1H563J MYLAR 0.056UF J
C3 CE04KW1H010M ELECTRO 1.0UF 50WV
C4 CQ92FM1H333J MYLAR 0.033UF J
C5 CE04KW1HR47M ELECTRO 0.47UF 50WV
C6 CQ92FM1H103J MYLAR 0.010UF J
C7 CE04KW1HR15M ELECTRO 0.15UF 50WV
C8 CQ92FM1H682J MYLAR 6800PF J
C9 CQ92FM1H683J MYLAR 0.068UF J
C10 CQ92FM1H272J MYLAR 2700PF J
C11 CQ92FM1H273J MYLAR 0.027UF J
C12 CQ92FM1H152J MYLAR 1500PF J
C13 CQ92FM1H103J MYLAR 0.010UF J
C14 CQ92FM1H102J MYLAR 1000PF J
C15 CE04KW1H010M ELECTRO 1.0UF 50WV
C16 CE04KW1H4R7M ELECTRO 4.7UF 50WV
C17 ,18 C91-0745-05 CERAMIC 100PF K
C51 CE04KW1H3R3M ELECTRO 3.3UF 50WV
C52 CQ92FM1H563J MYLAR 0.056UF J
C53 CE04KW1H010M ELECTRO 1.0UF 50WV
C54 CQ92FM1H333J MYLAR 0.033UF J
C55 CE04KW1HR47M ELECTRO 0.47UF 50WV
C56 CQ92FM1H103J MYLAR 0.010UF J
C57 CE04KW1HR15M ELECTRO 0.15UF 50WV
C58 CQ92FM1H682J MYLAR 6800PF J
C59 CQ92FM1H683J MYLAR 0.068UF J
C60 CQ92FM1H272J MYLAR 2700PF J
L : Scandinavia K : USA P : Canada R : Mexico C : China I : Malaysia
Y : PX(Far East, Hawaii) T:Europe E:Europe G : Germany V : China(Shanghai)
Y : AAFES(Europe) X : Australia Q:Russia H : Korea M : Other Areas indicates safety critical components.
L : Scandinavia K : USA P : Canada R : Mexico C : China I : Malaysia
Y : PX(Far East, Hawaii) T : Europe E : Europe G:Germany V : China(Shanghai)
Y : AAFES(Europe) X : Australia Q : Russia H:Korea M : Other Areas indicates safety critical components.
C61 CQ92FM1H273J MYLAR 0.027UF J
C62 CQ92FM1H152J MYLAR 1500PF J
C63 CQ92FM1H103J MYLAR 0.010UF J
C64 CQ92FM1H102J MYLAR 1000PF J
C65 CE04KW1H010M ELECTRO 1.0UF 50WV
C66 CE04KW1H4R7M ELECTRO 4.7UF 50WV
C67 ,68 C91-0745-05 CERAMIC 100PF K
C101 CK45FB1H473Z CERAMIC 0.047UF Z
C102 C91-0647-05 CERAMIC 0.010UF P
C103,104 CE04KW1E222M ELECTRO 2200UF 25WV
C105,106 CE04KW1E102M ELECTRO 1000UF 25WV
C107-109 CK45FB1H473Z CERAMIC 0.047UF Z
JK1 1C E70-0036-08 4P RCA JACK HSP-244V1-01
R107,108 R92-1741-08 FUSE RESIST 220 1/2W
VR1 -7 ✽R33-0002-08 SLIDE VR NC308N 100KBX1
VR51-57 ✽R33-0002-08 SLIDE VR NC308N 100KBX1
SW1 1B ✽S68-0108-08 PUSH SWITCH,SPUN19C604-CP5
SW3 1C ✽S90-0128-08 SLIIDE (VOLTAGE) Y
D101,102 1N4002L DIODE
IC1 NJM4558DX IC(OP AMP X2)
Q1 -7 2SC1815GR TRANSISTOR
Q51 -57 2SC1815GR TRANSISTOR
✽New Parts
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournis.
Teile ohne Parts No. werden nicht geliefert. 2
Ref. No Add-
ress
New
Parts
Parts No. Description Desti-
nation Re-
marks
✽New Parts
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournis.
Teile ohne Parts No. werden nicht geliefert. 1
Ref. No Add-
ress
New
Parts
Parts No. Description Desti-
nation Re-
marks
ELECTRONIC PARTS
KE-205
KE-205 98.11.305:07PM y[W 5

KE-205
SPECIFICATIONS
Equalizer characteristic
Variable range ................................................................................................................................................................ ±10 dB
Center frequencies ................................................................................. 60 Hz, 150 Hz, 400Hz, 1kHz, 2.4 kHz, 6 kHz, 15 kHz
Total harmonic distortion ............................................................................................... Lessthan 0.009% (20 Hz to 20 kHz)
Maximum output voltage ........................................................................................................................... 4.3 V (THD 0.01%)
S/N ratio ......................................................................................................................................... 96 dB (IHF-A network, 1V)
Input impedance ............................................................................................................................................................... 47 kΩ
Output impedance ........................................................................................................................................................... 3.6 kΩ
General
Power consumption ............................................................................................................................................................. 5 W
AC outlet unswitched .................................................................................................................................... 1 (200W max)
Dimensions ............................................................................................................................................ W : 440mm (17-5/16”)
H : 74mm (2-15/16”)
D : 273mm (10-3/4”)
Weight .................................................................................................................................................................... 2.3 kg (5.1Ib)
1. KENWOOD follows a policy of continuous advancements in development. For this reason specifications may be changed
without notice
2. The full performance may not be exhibited in extremely coud location (under a water-freezing temperature).
Notes
Notes
14-6,Dogenzaka 1-chome, Shibuya-ku, Tokyo, 150-8501 Japan
KENWOOD SERVICE CORPORATION
P.O BOX 22745, 2201 East Dominguez St., Long Beach, CA 90801-5745, U.S.A.
KENWOOD ELECTRONICS CANADA INC.
6070 Kestrel Road, Mississauga, Ontario, Canada L5T 1S8
KENWOOD ELECTRONICS LATIN AMERICA S.A.
P.O BOX 55-2791, Piso 6 plaza Chase, Cl. 47 y Aquilino de la Guardia Panama, Republic de Panama
KENWOOD ELECTRONICS BRASIL LTDA.
Av Indianópolis, 628, 04062-001 Planalto Paullsta São Paulo-SP-Brasil
KENWOOD ELECTRONICS U.K. LIMITED
KENWOOD House, Dwight Road, Watford, Herts., WD1 8EB., United Kingdom
KENWOOD ELECTRONICS BELGUM N.V.
Meachelsesteenweg 418, B-1930 Zaventem, Belgium
KENWOOD ELECTRONICS DEUTSCHLAND GMBH
Rembrücker Str. 15, 63150 Heusenstamm, Germany
KENWOOD ELECTRONICS FRANCE S.A.
13 Boulevard Ney, 75018 Paris, France
KENWOOD ELECTRONICS ITALIA S.p.A.
Via G. Sirtori, 7/9 20129, Milano, ltaly
KENWOOD IBÉRICA S.A.
Bolivia, 239-08020 Barcelona, Spain
KENWOOD ELECTRONICS AUSTRALIA PTY. LTD.
(A.C.N. 001499 074)
P.O Box 504, 8 Figtree Drive, Australia Centre, Homebush, N.S.W. 2140, Australia
KENWOOD & LEE ELECTRONICS, LTD.
Unit 3712-3724, Level 37, Tower 1, Metroplaza, 223 Hing Fong Road, Kwai Fong N.T., Hong Kong
KENWOOD ELECTRONICS GULF FZE
P.O.Box 61318, Jebel Ali, Dubai, U.A.E.
KENWOOD ELECTRONICS SINGAPORE PTE LTD.
No. 1 Genting Lane #02-02, KENWOOD Building, Singapore, 349544
KENWOOD ELECTRONICS (MALAYSIA) SDN BHD.
#4.01 Level 4, Wisma Academy Lot 4A, Jalan 19/1 46300 Petaling Jaya Selangor Darul Ehsan
Malaysia
KENWOOD ELECTRONICS (THAILAND) CO., LTD.
573/111 Soi Ramkhamhaeng 39, Ramkhamhaeng Road, Wangthonglang, Bangkapi, Bankok
10301 Thailand
Note:
Component and circuit are subject to modification to insure best operation
under differing local conditions. This manual is based on Europe (E) standard,
and provides information on regional circuit modification through use of alter-
nate schematic diagrams, and information on regional component variations
through use of parts list.
KE-205 98.11.305:07PM y[W 6