Panasonic RXDT-30 Service manual

ORDER NO. MD9502012C1

Service

Manual

Portable Stereo CD System

MASH*

TAPE DECK TRAVERSE DECK : RAE01 13Z MECHANISM SERIES

: SG-20W MECHANISM SERIES

Radio Cassette

RX-DT30

Colour

/

(K) Black Type 1

I

SPECIFICATIONS

n

Radio Section

Frequency range

FM AM

Intermediate frequency

FM AM

Sensitivity

FM

AM

H CD Player

Sampling frequency Decoding Beam source

No. of channels Wow and flutter D/A

converter

88-108MHz

525 - 1705

17

(

-3 dB limit sens.

51

dB/m/50

Semiconductor laser

(wavelength 780 nm)

2 channel, stereo

Less than possible measurement data

MASH (1 bit DAC)

kHz

10.7 MHz 455

kHz

dB/50 mW

mW

44.1

kHz

16 bit

Iinear

n

Tape Recorder

Track system Recording system

Erasing system Monitor system Frequency range

Normal

)

n

General

Power requirement

AC

Battery Speakers Jacks

Output

Dimensions (W x H x D)

Weight

Notes

:

Specifications are subject to change without notice. Weight

and

dimensions are approximate.

12 V (8

4.5 kg (9 lb.

4 track, 2 channel, stereo

Multi

Variablesoundmonitor

Power consumption; 30W

“D”

size, R20/LR20 batteries)

15 oz.)

pole magnet

50

-

14000 Hz

120V, 60Hz

10 cm (4”) x 2

Headphones;

580x192

(22’3/~s”x79/~6”x1 01/4”)

x260mm

without batteries

AC bias

32c1

Panasonic”

©

RX-DT30

n

Disassembly Instructions

Warning : ACHTUNG :

“ATTENTION SERVICER”

Ref. No.

This

1

product uses a laser

Die

laserernheit

Die

lasereinheit darf nur gegen eine vom hersteller

Removal of the Handle

Procedure

1

_

-m--_--

Ref. No.

3

Removal of the Top Cabinet Unit

Procedure

2*3

diode.

zerlegen.

-__

Refer to

(0

-

nicht

Some chassis components may have sharp edges. Be careful when

1.

Release 2 ribs.

2.

Pull out the handle.

Handle

1.

Press the CD eject button.

2. Remove 5 screw

3. Remove the Top Cabinet

caution

statements on page 2.

Q).

Unit.

spezrfizierte

Ref. No.

Procedure

~

einheit ausgetauscht werden.

disassembling

I

Removal of the Front Cabinet

2

:

1.

Remove the battery cover.

2. Remove 8 screws

1

and servicing.

( @ - 0 ).

_,

Front Cabinet

Ref. No.

4

Procedure

2+31,4

\

CD Eject Button

Removal of the Control P.C.B.

1

1. Remove 2 connectors (CN303, CN801).

2. Remove FFC cable from the connector CN702 (Control P.C.B.).

3. Release 4 claws.

FFC Cable

3.

Press the 2 eject buttons.

4.

Release 1 claw.

5. Remove the front cabinet in the

6.

Remove 1 connector

Control P.C.B.

CN303

(CP307).

CN702

I

Claws

direction

of arrow

-5-

RX-DT30

I

Ref. No.

5

Procedure

2*31,5

1..

Remove

2. Remove 4 connectors

3. Remove the Connector P.C.B.

3

r- ~

---~~~

-~~~

Removal of the Connector P.C.B.

screws

(0-Q).

(CN1,

-~~~~

CN304. CN305,

CN801).

CN1

CN305

Ref. No.

6

Ref. No.

7

~----I

Removal of the Mechanism Unit

_.~ ~~~

Removal of the Traverse Unit

.~~~~~

;<

R

1.

Remove 2 connectors

2. Remove 6 screws

Ref. No.

Connector P.C.B.

I

Mechanism Unit

(CP301, CP602

( @ - @ ).

CN304

)

Removal of the Main P.C.B.

CN801

FFC Cable

Traverse Unit

*

Remove 4 screws Remove FFC cable from the connector CN702 (Control P.C.B.)

( 0 - 0 ).

I

CN702

-6-

CP306

1..

Remove 2 screws

2.

Remove 1 connector

out the main P.C.B. in the direction of arrow.

Pull

3.

Main P.C.B.

(8

-@

(CP306).

).

RX-DT30

Power

SUPPLY

P.C.B.

i

CP306 -m$j

Ref. No. ~

?

11

Procedure

2*3*11

Removal of the Power Supply

1.

Remove 6 screws

2. Remove 1 connector

I

Removal of the CD Cover

( /

(0

(CP306)

- @

P.C.B.

).

Ref. No.

10

Procedure

21,9*10

Ref. No.

12

-7

;

Removal of the Battery

-I.-

1.

Release 1 claw.

I

2. Pull out the battery P.C.B.

P.C.B.

Removal of the Disc Clamp Unit

Procedure

21,31,12

CD Cover

1.

Hold the CD cover in half-open

2. Release the rib in direction of arrow

3. Pull out the CD cover in direction of

4. Release the

5. Pull out the CD cover.

Ref. No.

13

Procedure

2413

,?,

Speaker

rib

in

direction

) i

Removal of the Speakers

I

~~~~

~~~ -~~

1

1. Remove 8 screws

2. Cut black bond at wire before removal of the speakers.

$”

of

position.

arrow@

~~

e;l.

arrow3.

~~~~ -~ ~ -~~

( 0

- @

).

dressing point

‘2;

Speaker

Bond

1.

Press the CD eject button and then open the CD cover.

2. Remove the

Ref. No.

14

disc

clamp

unit in

the direction of arrow

’ I

Removal of the Cassette Compartment

(Ijfollow by(2,‘

RX-DT30

1

Ref. No.

15

1

Removal of the Servo P.C.B.

~~~ I

Procedure

21,31,7

*15

,

;

Traverse

Terminals

1.

Remove 3 screws

2. Desolder 2 termrnals of

3. Desolder 2 termrnals of traverse motor.

4. Remove the flexrble cable from

Ref. No.

Procedure

21)31)7

*151,16

Unit -

of traverse motor

( 0

’

116Removal of the Traverse Deck Ass’y

Terminals of spindle motor

- 0

).

spindle

1

’

:

~~,

motor.

CN701

Removal of the flexrble cable Push the top of the connector in the direction pull out the flexrble cable

directron of the

P

of the arrow@, and then

arrowa.

Note

:

Insert a short traverse unit.

pin into

in

the

the flexible cable for

Traverse Deck Ass’y

1.

Widen

2.

1.

2 bosses by

Remove the Traverse Deck Ass’y in direction of arrow @follow by

Install the CD open spring as shown in above diagram.

using

a flat tip screwdriver and remove 2 pins.

CD OpenSpring

-8-

;2,.

Install the CD cover onto the top

2. Note

:

When

IS in half open positron.

Release the

3.

spring

installing

the CD cover, make sure the CD cover

in the directton of arrow

cabinet.

0.

n

INSTALLING CASSETTE COMPARTMENT

I

J /J-Cass.

,

Open

RX-DT30

Spring

Install the

Release the spring

cass.

open

spring

as shown in above diagram.

INSTALLING SERVO P.C.B.

Cassette Compartment

2. Fix the cassette compartment to front cabinet

Before installing the servo P.C.B., move the optical pickup toward the outer edge from the mark (Otherwise, the rest switch

P.C.B may be damaged.)

2. Connect the flexible cable to the connector (CN701).

3. Install the servo P.C.B. in the traverse deck ass’y with the 3 screws

4. Solder the 2 terminals of the traverse motor and the 2 terminals of the spindle motor.

Note

:

( 0 - @I ).

Connect the flexible cable to the connector (CN701) firmly. Tighten the screws before soldering the terminals.

(S701)

“A”.

mounted on the servo

Spindle motor

__

-9-

RX-DT30

n

I

HOW TO CHECK THE TRAVERSE UNIT

I

Traverse Unit

3. Set up the traverse unit as shown in diagram.

4. Install the compact disc and disc clamp unit. Note

:

Before perform checking, make sure the

switch SW401 is switched to “ON” position. (as shown

in

diagram).

1. Remove the top cabinet (Refer to disassembly instructions, Fief No. 3)

2.

Remove4screws.

unit.

(0-0)

n WHAT TO DO WHEN THE TAPE IS ENTANGLED

When the tape is caught in the pitch roller, etc. Release the tape

by turning the pulley on the motor with the screwdriver in the direction of arrow.

-lO-

/

RX-DT30

Terminal Guide of

AN71 35

BA3936

AN7205

BA7755A

2SC1684QTA 2SC1684RTA 2SC1684STA

MA4056N-MTA

ICs,

Transistors & Diodes

AN7317

M38222M2051

pmiq

2SC2785FTA

RVDMTZ5RGBTA RVDMTZ6R8BTA

AN8389SE1

MN66271

pFq

2SJ40CDTA

,,_+

,’

“,I ,/’

4

DG

S

RL203M11

q

A

,,,,

4.7”’

Ca

RA

*>

‘.,

’

Cathode

i

AN8802SCE1

132

PST600DTA

BN1A4MTA

RVD1 SS1

33TA SLB55VRTE7

V

BA1442A

2SB709S

2SC 1740SRTA RVTDTC114EST

-ll-

RX-DT30

n

Schematic Diagram

A

SERVO CIRCUIT

13

ZY

;z

lC701

AN8802SCE1 SERVO AMP

V

RX-DT

P2

r

_ _

_

RX-DT30

n

Schematic Diagram

I

2SC1684RTA

WXHING

(HIGH SPEED)

a101.0102.0201.0202

;st$OCDTA

‘JO1

1

-R

REC/PtAY

“EL

DECK 2

CH

-1

11

il

Q204

6::

”

Kz.307

AN731 7

REC/PLAY

RIO,

I*K

cto,

K68oP

AMP

tzl

J

I

0305

2SC1740SRTA BEN PROcf

-14-

Panasonic RXDT-30 Service manual

Specifications and Main Features

Frequently Asked Questions

User Manual