Symphonic WV20D5 Schematic

SUPPLEMENT

SERVICE MANUAL

This service manual shows only the differences between
the model WV20D5 and the original model 6520FDF.
All other information is described in the service manual
of the model 6520FDF.

20″ COLOR
TV/DVD

WV20D5

TABLE OF CONTENTS

Block Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Schematic Diagrams / CBA’s and Test Points. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Different parts from the original model (6520FDF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

BLOCK DIAGRAMS < TV Section >

Audio Block Diagram

SP1801

SPEAKER

R-CH

SP1802

SPEAKER

L-CH

AUDIO (TV/LINE) SIGNAL DVD AUDIO SIGNAL DATA(AUDIO) SIGNAL

DIGITAL

JK1730

AMP

Q1731

AUDIO OUT

(COAXIAL)

CN1801

DVD

IC1801 (AUDIO AMP)

1

CL1801

SP-R 1

SP-GND 2

14

AMP

(R-CH)

LINE/TUNER

3

VOLUM E

MUTE

/STANDBY

CONTROL

(L-CH)

DVD

CL1802

SP-L 1

CN1802

11

AMP

LINE/TUNER

6

SP-GND 2

TO SYSTEM CONTROL

BLOCK DIAGRAM

DVD -L

VOLUME

SP-MUTE

7

212

8

DVD-AUDIO-MUTE

TP1402

AUDIO-R-OUT

TP1401

AUDIO-L-OUT

41

ATT

34

ATT

MAIN CBA

Q1732

SWITCHING

TP1404

DVD-R-OUT

TP1403

DVD-L-OUT

WF20

CN4

SPDIF 8

TO DVD AUDIO

11

DVD-AUDIO(R)

BLOCK DIAGRAM

WF19

DVD-AUDIO(L) 10

DVD-AUDIO-MUTE 9

<DVD SECTION>

CN4A

TV MICON/VIDEO

/CHROMA

/DEFLECTION

TUNER

IC1201

27

TU-AUDIO

TO IF/VIDEO

BLOCK DIAGRAM

LINE

19

JK1702

(R-CH)

AUDIO(R)

-IN

TUNER

LINE

21

JK1703

(L-CH)

AUDIO(L)

-IN

1-1

T9110BLA

SCHEMATIC DIAGRAMS / CBA’S AND TEST POINTS

Standard Notes

WARNING

Many electrical and mechanical parts in this chassis
have special characteristics. These characteristics
often pass unnoticed and the protection afforded by
them cannot necessarily be obtained by using
replacement components rated for higher voltage,
wattage, etc. Replacement parts that have these
special safety characteristics are identified in this
manual and its supplements; electrical components
having such features are identified by the mark “#” in
the schematic diagram and the parts list. Before
replacing any of these components, read the parts list
in this manual carefully. The use of substitute
replacement parts that do not have the same safety
characteristics as specified in the parts list may create
shock, fire, or other hazards.

Notes:

1. Do not use the part number shown on these
drawings for ordering. The correct part number is
shown in the parts list, and may be slightly
different or amended since these drawings were
prepared.

2. All resistance values are indicated in ohms
(K = 10

3. Resistor wattages are 1/4W or 1/6W unless
otherwise specified.

4. All capacitance values are indicated in µF
(P = 10

5. All voltages are DC voltages unless otherwise
specified.

3

, M = 106).

-6

µF).

2-1 X6SN_SC