Kenwood KCX 1 Service Manual

Page 1

DIGITAL AV CONTROL AMPLIFIER/TUNER KE NWOOD
KC -X1
SERVICE MANUAL

©1993-3 PRINTED IN JAPAN
851-4703-00 (MC) 2088

Panel (FRONT) Metallic cabinet Front glass Knob assy (VOLUME CONTROL)
(AGO-0341702) (A01-3002-01) (5107195443) (K295638714)

KENWOOD r n ,

Phone jack (PHONES)

--o
IE11-0208-05l

Knob (INPUT SELECTOR)
Panel (DOOR) (K297564004)
Foot X 4 (A29-0327-12)
lJ02-1002705l

Phone jack (VlDEOl
(E 137031 3-05)

Lock terminal board (ANTENNA)

(EZO-OBZl-OBI Rectangular receptacle (PRE OUT)

Phono jack (VIDEO) (EEG-000305)

AC ower cord

Miniature phone jack (S.CONTROL) (513-0313705) (sag-097805
lE11-0188-05l

Power cord bushing

_ Cylindrical receptacle
Phone Jack (VIDEO) V _ (J42»0083-05)
(3031305) (E06 0409 05)

Cylindrical receptacle
(EOG-O408-05l

AC outlet
Phone jack (PHONO) (ma-011205)

(E63-O100-05l

Cylindrical receptacle
_ (REMOTEl

Phono jack (PRE OUTl (EOSOBOSOSI

(E6370074705l
Phone jack (CD, TAPE) Phuno jack (VlDEOl Slide switch (S.WO0FER ON/OFF)
lE63rOO75~05l (E63-0075-05l (531-2094705)

Phone jack (TAPE, VIDEOl
(E63-OO75-05)

Page 2

KC-X1

CONTENTS

ACCESSORIES ........................
CONTROLS AND. INDTCATORS
D1SASSEMBLY FOR REPA1R. ..... 7
BLOCK DIAGRAM. .....
C1RCU|T DESCR1PT1ON
1. Oufline 01THX system ..................................... 13
2. Main microprocessor MPD78044GF-024 (X14: 1C14)... 14
3. ControTmlcroprocessoruPD78043GF-0201X14 1C18),. 2O

4. Dismay conIrOT driver: LC75711E1X1411C15, 16)... 23

5. Control of seTector IC and speaker relay ............. . 26
ADJUSTMENT ...............................
PC. BOARD (Component side v1ew)..
SCHEMATIC DIAGRAM
EXPLODED V1EW ..........
PARTS HST ..........
SPECIFICATTONS

ACCESSORIES

1T90-0176-05)

759/3000
antenna adaptor ................ 1
HBO-018505)

Batteries
("RO3 or "AAA")..

@03

Overlay sheet ..................... 1
1616-0804-0111

FM indoor antenna. . .. 1

AM loop antenna ............. 1
(T907131 737051

Loop antenna sxand. ........ . 1
1J1972815-O4)

@

Remote control unit ............ 1

(X94~1030-Z11

Battery cover 1A09-0140-031

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Audio cord ........................... 3
(ESQ-2293051

Page 25

P.C. BOARD (Component side View)

SUB-CIRCUIT UNIT (X13-7210-10) (Al4)

PHONES
SUB-CIRCUIT UNIT
(X13-7210-10) (D/4)

5%?)FER REMOTE
PHONO C D RIEC P |IAY REC PLIAY OlIJT 1] OIUT [1 cu T IN V IDEO 4 A-IEEIIT SURROUND gEgTER SWITCH Refer to the schematic diagram for the values of vesistovs and capacnors.
TAPEI TAPE? VIDEO] VIDEOZ vaos 1]" I woorER 32
J

AUDIO PRE OUT