Kenwood RXD 503 Service Manual

Page 1

RXD7303(K) COVER1,1P( 4/21/00 5:42 PM \°-/ 1

MINI HiFi COMPONENT SYSTEM

RXD- 303/303E/353/353E/503/503E/553/ 553E/

553-GR/553E-GR/653/653E/A33/A53/A53-GR

SERVICE MANUAL
(XD-303~A73)**

© 2000-3/851-5605-00 (K/K) 3633

KENWOOD

(A29 )

From glass *
(310-)

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Knob *

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(K29-)

Phone jack
(E1 1-0280-05)

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"Refer to page 2 it you want to know system configuration.

* Refer to parts list on page 33.

product safety.

in compliance with Federal Regulations, following are repro-
ductions of labels on, or inside the product relating to laser

KENWOOD-Crop. certifies this equipment conforms to DHHS
Regulations No. 21 DFR 1040. 10, Chapter 1, Subchapter J.

DANGER : Laser radiation when open and inlerlock defeated.
AVOID DIRECT EXPOSURE TO BEAM

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.¥Panel ass'y *

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RXD7303(K) COVER1,1P( 4/21/00 5:42 PM \°-/ 7

/\
\/

RXD-303/353/503/553/653/A33/A53

CIRCUIT DESCRIPTION

3-3-4 Test Mode

KEY DISPLAY OPERATION
CD-PLAY/PAUSE 05 >l< *: >l< >l<
(** : ** ) Tracking-servo on.
(Change the mode 05 and 03 77:77 Tracking-servo off.
alternately by the stop key.)
DISC1 01 77:77 STOP
Adjustment value/mean value

(Cyclically changed in the 07 >l< */ >l< >l< TB value FB value
stop mode only.) 08 >i< >i< / >i< >l< TG value FG value

09 >i< >ii< >i< TO value FO value

__,__ Stop (Press it 1time.)

STOP 01 ' Cancel the test mode. (Press it 2 times.)
TAPE EQ Ex. 01~02 CD track no. up.
TAPE EO .
(Press it more than 400msec.) CD FF search. The pickup travels outward.
REVERSE MODE Ex. 02~01 CD track no. down.
REVERSE MODE CD FB search.
(Press it more t han 400msec.) - The pickup travels inward.

4. Microprocessor : M30622MA-A62FP
4-1 Microprocessor Periphery Block Diagram

X28,|C1
DECK SYSTEM IC
m (CXA14983)
\ /
xwm X13,IC101 $5

DOT DRIVER
47L DE K MECHA
(LC7571 1 NED) 4 C

50
X14,ED1 X13,IC11

aw

Vaccume Fluorescent 2 SYSTEM IC
Display (HNA-15MM18T) M30622MA'A62FP 7 I (M62498AFP)
X32,|02 TUNER PACK
+ 3
DSP IC 5 7 ' PLL IC
(MN662748) 3 Z (LC72131)
7 3

5
7 X13,IC12 2

CD MECHA
(com-35)

RDS IC(E, T)
(BU1923F)