KENWOOD KRC488
Manual de Servicio

REQ C

REQ H

DATA C

CH CLK

DATA H

CH CON

TAPE L/R

COM+B

CH MUTE

S MUTE

KRC-408/488

OUT

MOTOR

PACK IN

T MODE

FWD/REV

DSI

LCD DATA IN

REMOTE

LCD DATA OUT

LCD CE

LCD CLK

METAL

DOLBY

MUSIC

PANEL ON/OFF

RST

5

LCD KEY

10

2
J4 J1 CD/MD CHANGER
1200mV IC2 CD L/R AM (TAPE)1708mV (CD-CH)3635mV (FM) (AM) IC4 KM:1600mV 615mV LEVEL

ANT 8

(FM) (AM) KM:360mV 168mV E:190mV 162mV COM+B CD L/R

A1 MPX SP OUT
B.U. 14V POWER IC E:1100mV 830mV

E-VOL

FM ANT MP IN

AM ANT OUT LF 4ch

IC1
OUT RF SDA OUT LR SCK OUT RR

FM+B

AM+B

Q201 SVR SW IC7
B.U. 5V AMP DRIVER MUTE

S-METER S METER PWR STBY

Q41-44 SYSTEM u-COM MUTE PRE OUT Q121
(TAPE)1642mV (CD-CH)3495mV E:1060mV 780mV AM +B SUB

J5/6 AUDIO OUT

PLL PLL CLK B.U. (FM) (AM)

PLL DATA ACC MUTE

IC6 FM +B KM:1500mV 570mV

MOTOR SUB+ PHONE TEL-MUTE ILL ON

SUBJ2

Q116,117 ANT-CON Q94-96 P-CON P-CONT

BLOCK DIAGRAM

DSI PANEL Q118 ON/OFF

Q105 IC5

341mV DET ACC

Lch DET B.U.

COM L/R

TAPE

Rch B.U. 5V SUB MAIN METAL PAN 5V DOLBY

EQ AMP

M Q104 Q84,85

M2 M1 Q101 COM+B 8V AVR

MUSIC T-END

DOLBY Ref.94 P.ON 5V Q80,81 B.U. 5V

Ref.95 STBY PACK

Ref.105

IN

Ref.103

Ref.102 Q87-89

FWD

RST SW ILLUMI AVR REMOTE CONTROL AM+B IC1
REV IC2 MODE Q92

Lch Q93

LCD DRIVER WITH HD1
Rch

FM+B KEY MATRIX