JVC AV-1414EE, AV-14A10, AV-14A10-AU, AV-14A10-HK, AV-14ATG2 Schematics

SCHEMATIC DIAGRAMS

COLOUR TELEVISION

AV-14A10
AV-1414EE
AV-14ATG2

AV-14A10/AV-14A10/HK
AV-14A10/AU/AV-1414EE
AV-14ATG2/AV-14ATG2

CD-ROM No.SML200112

BASIC CHASSIS

CG

/-A

CONTENTS

NOTE ON USING CIRCUIT DIAGRAMS

SEMICONDUCTOR SHAPES

BLOCK DIAGRAM

CIRCUIT DIAGRAMS

PATTERN DIAGRAMS

COPYRIGHT 2001 VICTOR COMPANY OF JAPAN, LTD.

2-1

2-2

2-3

2-7

2-9

No.51920

Dec. 2001

AV-14A10

STANDARD CIRCUIT DIAGRAM

NOTE ON USING CIRCUIT DIAGRAMS

1.SAFETY

The components identified by the symbol and shading are
critical for safety. For continued safety replace safety critical
components only with manufactures recommended parts.

2.SPECIFIED VOLTAGE AND WAVEFORM VALUES

The voltage and waveform values have been measured under the
foll owing condition s.

(1)Input signal : Colour bar signal

(2)Setting positions of
each knob/button and
variable resistor

(3)Internal resistance of tester

:DC 20k

/V

(4)Oscilloscope sweeping tim e

:H

20µS/div

:V

5mS/div

:Others

Sweeping time is
specified

(5)Voltage values

:All DC voltage values

Sin ce the vol tage values of si gnal circuit vary to some exten t
according to adjustments, use them as reference values.

3.INDICATION OF PARTS SYMBOL [EXAMPLE]

In the PW board

:R1209

R209

4.INDICATIONS ON THE CIRCUIT DIAGRAM

(1)Resistors

Resistance value

No unit :[

]

K

:[K

]

M

Rated allowable power
No indication :1/ 16 [W]

Others :As specified

Ty pe

No indication

:Carbon resistor

OM R

:Oxi de metal fi lm resistor

MFR

:Met al film resi st or

MPR

:Metal plate resistor

UNFR

:Uninflammable resistor

FR

:Fusible resistor

Compos iti on resist or 1/2 [W] is spec ified a s 1/2S or Comp.

(2)Capacitors

: Original setting position
when shipped

5.NOTE FOR REPAIRING SERVICE

This model's power circuit is par tly different in the GND. The
difference of the GND is shown by the LIVE : ( ) side GND and the
ISOLATED(NEUTRAL) : ( ) side GND.Therefore, care must be
taken for the following points.

(1)Do not touch the LIVE side GND or the LIVE side GND and the
ISOLATED(NEUTRAL) side GND simultaneously. If the above
caution is not respected, an electric shock may be caused.
Therefore, make sure that the power cord is surely removed from
the receptacle when, for example, the chassis is pulled out.

(2)Do not short between the LIVE side GND and ISOLATED(NEUTRAL)
side GND or never measure with a measuring apparatus measure
with a measuring apparatus ( oscilloscope, etc.) the LIVE side GND
and ISOLATED(NEUTRAL) side GND at the same time.
If the above precaution is not respected , a fuse or any parts will be broken.

Since the circuit diagram is a standard one, the circuit and
circuit constants may be subject to change for improvement
withou t any n otice.

NOTE
Due improvement in performance, some part numbers show
in th e circuit diagram may not agree with th ose indi cate d in
the par t li st.
When ordering parts, please use the numbers that appear
in the Parts List .

Ty pe

MM

:Metalized mylar capacitor

PP

:Polypropylene capacitor

MPP

:Metalized polypropylene capacitor

MF

:Metalized film capacitor

TF

:Thin film capacitor

BP

:Bipolar electrolytic capacitor

TAN

:Tantalum capacit or

(3) Co i ls

No unit

:[

µ

H]

Others

:As specified

(4)Power Supply

:B1

:9V

:5V

Respective voltage values are indicated

(5)Test point

:Test p oint

:Only test point display

(6)Con nectin g me th od

:Connector

:Wrapping or soldering

:Receptacle

(7)Ground symbol

:LIVE side ground

:ISOLATED(NEUTRAL) side ground

:EARTH ground

:DIGITAL ground

:[M ]

Capacita nce value

1 or higher :[pF]

less than 1

:[µF]
Withstand voltage
No indicatio n :DC50[V]

Others :DC withstand voltage [V]

AC indicated

:AC withstand voltage [V]

Electr olyt ic Capacitors

47/50[Example]:Capacitance value [µF]/withstand voltage[V]

No indication

:Ceramic capacitor

:B2 (12V)

AV-1414EE
AV-14ATG2

CONTENTS

AV-14A10

AV-1414EE

AV-14ATG2

SEMICONDUCTOR SHAPES

BLOCK DIAGRAM
CIRCUIT DIAGRAMS

MAI N PWB CIRCUIT DIAGRAM

PATTERN DIAGRAMS

MAIN PWB & CRT SOCKET PATTERN

SEMICONDUCTOR SHAPES

TRANSISTOR

BOTTOM V IEW

E
C

B

ECB

BCE

(G)(D)(S )

IC

BOTTOM VIEW FRONT VIEW TOP VIEW

CHIP IC

2-2

OUT
E

IN

N

N

N

1

N

IN OUTE

FRONT VI EW

1 N

TOP VIEW

ECB

1

N

No.51920

TOP VIEW

CHIP TR

ECB

1 N

1

2-2

2-3

2-5

2-9

C

BE

N

Dec. 2001 No. 51920

BLOCK DIAGRAM

TU001

TUNER

A V-14A10

AV-1414EE

AV-14ATG2

IF

Q102

IF AMP

SF101

A V-214A10
AV-1414EE
AV-14ATG2

IC651

AUDIO AMP

AUDIO

3

SP

OUT

8

SP

SF102

REAR

VIDEO

IN

AUDIO

VIDEO

OUT

AUDIO

IC702

MEMORY

POWER SW

SCL
SDA

D901

RECT

37.38

SCL
SDA

3.58/
OTH

IC701

MICRO COMPUTER

IC921

POWER

REG.

HEAD

Q103

SW

SCL/SDA

25

18.19

SAW

30

AUDIO

OUT

IC201

REMOCON

KEY

IND.

1 CHIP DECODER

RGB

OSD
RGB

30.31.32

6.7.8

EXT

RGB

VIDEO

IN

24

VIDEO

OUT

38

AUDIO

IN

29

H.OUT V.OUT

42

10.11.12

46

R / G /B

V.OUT

IC421

PHONE

FRONT

IN

VIDEO

AUDIO

CRT SOCKET PWB

RGB
DRV

V01

CRT

VERT.OUT

REG.

SP

DY(V)

IC971

9V REG.

REG.

IC972

H.OUT

Q522

H.OUT

DY(H)

DEF.YOKE

5V REG.

FOCUS

T921

SW

TRANSF.

B1

B1

T522

HVT

SCREEN

EHV

AC IN

CF901

No.51920

PC921

VO LTAGE

FEEDBACK

IC941

ERROR

AMP

2-3 2-4

MAIN PWB

No.51920