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STEREO GRAPHIC EQUALIZER

KE-205
SERVICE MANUAL
© 1998-5/B51-5429-00 (K/K) 1396

KENWOOD badge (B43-0302-04)

Knob (Slide) (K27-2329-08)

Front panel (A60-1552-08)

Knob (Slide) (K27-2329-08)

+10

+10

+10

+10

7 BAND DUAL EQUALIZER
0 0 0 0

-10 60Hz 150Hz 400Hz 1kHz 2.4kHz 6kHz 15kHz

-10

POWER ON OFF

-10 60Hz 150Hz 400Hz 1kHz 2.4kHz 6kHz 15kHz

-10

Foot rubber (G16-0919-08)x4

Foot (J02-1424-08)x4

Knob (Power) (K27-2328-08)

Top cover (A01-3654-08)

Slide switch* (S90-0128-08)

AC outlet (E03-0351-08)

LINE IN OUT

UNSWITCHED 200W MAX.

L
AC 110-120V

~

AC 220-240V

~

R

RCA jack (E70-0036-08)

AC power cord (E30-2895-08)

Power cord stopper (J42-0341-08)

* Refer to parts list on page 5.

A

B

C

D

E

PC BOARD(Component side view)
LINE OUT IN

1

2

E

E

E

E

E

E

E

E

E

E

E

E

E

E

B

B

B

B

B

B

B

B

B

B

B

B

B

B

3
POWER

11 11 1

1

4

11

5

1

6
11

1

7

2

Refer to the schematic diagram for the value of resistors and capacitors.

5.1K

5.1K

5.1K

5.1K

5.1K

5.1K

R32 330K

C18 100P

R33 82K

R28 24K

R24 36K

R20 51K

R16 51K

R12 68K

C17 100P C16 4.7u50 + R35 3.3K

B

0V
6 + 5

-0.9V

-0.9V

-1.1V

-1.0V

-1.1V

R8 75K

-1.2V

R4 82K

-1.4V

12.6V

12.6V

12.6V

12.6V

12.6V

12.6V

12.6V

0V
7

4

Q7
C14 1000P

-0.2V
R25 470

Q6
C12 1500P

-0.3V
R21 470

Q5
C10 2700P

-0.4V
R17 470

Q4
C8 6800P

-0.3V
R13 470

Q3
C6 0.01

-0.5V
470 R9

Q2
C4 0.033

-0.5V
470 R5

Q1
C2 0.056

-0.8V
470 R1
B

IC1 (1/2) JACK1 Lch
R29 470K R31 180K R36 560

0V
C15 1u50 +

C7 0.15u50

C5 0.47u50

C1 3.3u50

C11 0.027

C9 0.068

C3 1u50

C13 0.01

+ 6

+ 7

+ 8

+ 9
+B

INPUT

1

2

3

4

5

CN1 Rch
R79 470K

CN1
VR1

1

2

3

4

5

6

7

8

VR7

VR6

VR5

VR4

VR3

VR2

9

5.1K

R27 390

R26

R11 390

R23 390

R22

R19 390

R18

R15 390

R14

R10

R7 390

R3 390

R6

R2

Lch
C109 0.047 R30 470K
+B

+B +B

2

3

4

5

6

7

8

1

9

15.4V

-15.5V

CN2
1 2 3 C61 0.027 4 C59 0.068 5 C57 0.15u50 6 + C55 0.47u50 7 + 8 C51 3.3u50 + 9

B

R81 180K

R101 470

R102 470

C64 1000P

C62 1500P

C60 2700P

C58 6800P

C54 0.033

C52 0.056

+

C56 0.01

R75

R71

R67

R63

R59

R55

R51

470

470

470

470

470

470

IC1 (2/2)
C66 4.7u50 R85 3.3K

0V
1 C67 100P R84 3.3K 8 + -

-0.2V
3 2

-0.3V -0.9V

-0.4V -1.1V

-0.4V -1.0V

-0.5V -1.1V

-0.6V -1.2V

-0.7V -1.4V

+B

-0.8V

+ R82 330K

Q57
C68 100P R83 82K

Q56
12.6V
5.1K

Q55
12.6V
5.1K

Q54
12.6V
5.1K

Q53
12.6V
5.1K

Q52
12.6V
5.1K

Q51
12.6V
5.1K

13.7V 22.1V
R108 220 1/2W
+B

0V 13.7V

12.6V
5.1K R56 R54 82K R53 390 R52

R77 390

R76

R73 390

R72

R69 390

R68

R65 390

R64

R61 390

R60

R78 24K

R74 36K

R70 51K

R66 51K

R62 68K

D101
C105 2200u25 +

+B B B

+B

R58 75K

R57 390

+B B

C104 2200u25

+

15kHz
+
B

6kHz

2.4kHz

1kHz

400Hz

150Hz

60Hz

C106 2200u25

+
+B

C103 2200u25

470

+B

R86 560

C65 1u50

C53 1u50

+B

C63 0.01

7

6

5

4

3

2

1

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. 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.

15kHz
-13.7V
R34 3.3K
B +B

6kHz

2.4kHz
B

1kHz

400Hz

150Hz

60Hz
B

+B

+B

A B

+B

+B

10 11

10 11

D7
+B

D6

D5

D4
+B

D3

D2
+B

D1

C101 0.047
+B

C107 0.047

10 C108 0.047
+B +B

10 11

D57
+B

D56

D55

D54
+B

D53

D52
+B

D51

OUTPUT

11

Rch
R80 470K

VR57

VR56

VR55

VR54

VR53

VR52

VR51

CN2

C

+

Y09-4260-00

D

KE-205

-13.7V -22.1V
R107 220 1/2W
B

IC1 Q1-7,51-57
110120V

: NJM4558DX : 2SC1815GR : IN4002L

NJM4558DX

D102

SW3
220240V PT1

D101,102 (Y) TYPE

(K,P) TYPE SW1
ON C102 0.01 2 3 A AC120V 60Hz OFF 4 B 3 A

AC110-120V AC220-240V 50/60Hz SIGNAL LINE GND LINE

POWER
TH FUSE TH FUSE C +B 5 -B C

E

+B LINE -B LINE

1

5

KE-205

Parts with exploded numbers larger than 700 are not supplied. 4

A

B

C

601
B

614
B

615
B

616 626

Dx2 B

1
Bx2

Bx2 A

SW1 A B C D ø3x8 (BLK) ø3x6 (BLK) ø3x8 M3x6 : N89-3008-45 : N89-3006-45 : N89-3008-46 : N30-3006-46
C

SW3

640

B

EXPLODED VIEW

C 757

JK1

703

C

610
758 C

605

630

727

602 631x7
2
B

704 C 759

C

625x2

KE-205

631x7

B

620

625x2 620

KE-205

KE-205

5
V 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. Ref. No Add- New ress Parts Parts No. Description Destination

1
Remarks

V 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. Add- New Parts No. Description Ref. No ress Parts C61 C62 C63 C64 C65 CQ92FM1H273J CQ92FM1H152J CQ92FM1H103J CQ92FM1H102J CE04KW1H010M CE04KW1H4R7M C91-0745-05 CK45FB1H473Z C91-0647-05 CE04KW1E222M CE04KW1E102M CK45FB1H473Z 1C E70-0036-08 R92-1741-08 V R33-0002-08 V R33-0002-08 1B 1C V S68-0108-08 V S90-0128-08 1N4002L NJM4558DX 2SC1815GR 2SC1815GR MYLAR MYLAR MYLAR MYLAR ELECTRO ELECTRO CERAMIC CERAMIC CERAMIC ELECTRO ELECTRO CERAMIC 0.027UF 1500PF 0.010UF 1000PF 1.0UF 4.7UF 100PF 0.047UF 0.010UF 2200UF 1000UF 0.047UF J J J J 50WV 50WV K Z P 25WV 25WV Z

2
Destination Remarks

KE-205
601 602 605 610 614 615 616 620 625 626 630 631 640 640 1B 2A 2A V A01-3654-08 V A60-1552-08 B43-0302-04 B46-0121-33 B46-0302-04 V B60-3895-08 V B60-3896-08 V D21-1906-08 E30-0505-05 E03-0351-08 V E30-2895-08 G16-0919-08 V H10-7494-08 V H50-2987-08 2B,2C J02-1424-08 V J42-0341-08 1C 2B 2A 1C 1C V K27-2328-08 V K27-2329-08 V L07-2629-08 V L07-2630-08 TOP COVER FRONT PANEL BADGE,KENWOOD WARRANTY CARD WARRANTY CARD INSTRUCTION BOOK(E) INSTRUCTION BOOK(F) POWER KNOB SHAFT PATCH CORD BLK-1M AC OUTLET HJC-030A1(P) AC CORD 6.5FT BLK SPT-2 FOOT RUBBER SNOW BOX MASTER CARTON KENWOOD FOOT CORD STOPPER 5RF-B POWER KNOB SLIDE KNOB POWER TRANS EI-35 POWER TRANS EI-35 KP Y P K P

C66 C67 ,68 C101 C102 C103,104 C105,106 C107-109 JK1 R107,108 VR1 -7 VR51-57 SW1 SW3 D101,102 IC1 Q1 -7 Q51 -57

2B 1A 1C 1C 2B,2C

4P RCA JACK HSP-244V1-01 FUSE RESIST 220 1/2W SLIDE VR NC308N 100KBX1 SLIDE VR NC308N 100KBX1 PUSH SWITCH,SPUN19C604-CP5 SLIIDE (VOLTAGE) DIODE IC(OP AMP X2) TRANSISTOR TRANSISTOR

PARTS LIST

Y

ELECTRONIC PARTS
C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 C14 C15 C16 C17 ,18 C51 C52 C53 C54 C55 C56 C57 C58 C59 C60 L : Scandinavia Y : PX(Far East, Hawaii) Y : AAFES(Europe) CE04KW1H3R3M CQ92FM1H563J CE04KW1H010M CQ92FM1H333J CE04KW1HR47M CQ92FM1H103J CE04KW1HR15M CQ92FM1H682J CQ92FM1H683J CQ92FM1H272J CQ92FM1H273J CQ92FM1H152J CQ92FM1H103J CQ92FM1H102J CE04KW1H010M CE04KW1H4R7M C91-0745-05 CE04KW1H3R3M CQ92FM1H563J CE04KW1H010M CQ92FM1H333J CE04KW1HR47M CQ92FM1H103J CE04KW1HR15M CQ92FM1H682J CQ92FM1H683J CQ92FM1H272J K : USA T : Europe X : Australia P : Canada E : Europe Q : Russia ELECTRO MYLAR ELECTRO MYLAR ELECTRO MYLAR ELECTRO MYLAR MYLAR MYLAR MYLAR MYLAR MYLAR MYLAR ELECTRO ELECTRO CERAMIC ELECTRO MYLAR ELECTRO MYLAR ELECTRO MYLAR ELECTRO MYLAR MYLAR MYLAR R : Mexico G : Germany H : Korea 3.3UF 0.056UF 1.0UF 0.033UF 0.47UF 0.010UF 0.15UF 6800PF 0.068UF 2700PF 0.027UF 1500PF 0.010UF 1000PF 1.0UF 4.7UF 100PF 3.3UF 0.056UF 1.0UF 0.033UF 0.47UF 0.010UF 0.15UF 6800PF 0.068UF 2700PF C : China V : China(Shanghai) M : Other Areas 50WV J 50WV J 50WV J 50WV J J J J J J J 50WV 50WV K 50WV J 50WV J 50WV J 50WV J J J I : Malaysia indicates safety critical components. L : Scandinavia Y : PX(Far East, Hawaii) Y : AAFES(Europe) K : USA T : Europe X : Australia P : Canada E : Europe Q : Russia R : Mexico G : Germany H : Korea C : China V : China(Shanghai) M : Other Areas I : Malaysia indicates safety critical components.

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 ............................................................................................... Less than 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 k Output impedance ........................................................................................................................................................... 3.6 k

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)

Notes

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).

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 alternate schematic diagrams, and information on regional component variations through use of parts list.

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