JVC AV-N29F46/R, AV-N29F46/S, AV-N34F46/Y, AV-N34F46/Z Schematics

SCHEMATIC DIAGRAMS

COLOUR TELEVISION

AV-N29F46/R, AV-N29F46/S, AV-N34F46

CD-ROM No.SML200503

/Y, AV-N34F46/Z

BASIC CHASSIS

GJ5

No.YA258

2005/3

AV-N29F46/

AV-N34F46

STANDARD CIRCUIT DIAGRAM

NOTE ON USING CIRCUIT DIAGRAMS

AV-N34F46

1.SAFETY

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

2.SPECIFIED VOLTAGE AND WAVEFORM VALUES

The voltage and waveform values have been measured under the following conditions.

(1)Input signal : Colour bar signal

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

(3)Internal resistance of tester

(4)Oscilloscope sweeping time

(5)Voltage values

Since the voltage values of signal circuit vary to some extent according to adjustments, use them as reference values.

: Original setting position when shipped

: DC 20kΩ/V

: H

: V

: Othters

: All DC voltage values

20µs / div

5ms / div

Sweeping time is specified

3.INDICATION OF PARTS SYMBOL [EXAMPLE]

In the PW board

: R1209

R209

Type

No indication

MM PP MPP

MF TF BP

TAN

(3)Coils

No unit

Others

(4)Power Supply

Respective voltage values are indicated

(5)Test point

: Test point

(6)Connecting method

: Ceramic capacitor : Metalized mylar capacitor

: Polypropylene capacitor : Metalized polypropylene capacitor : Metalized film capacitor : Thin film capacitor : Bipolar electrolytic capacitor : Tantalum capacitor

: [µH]

: As specified

: B1

: 9V

: Connector

: Receptacle

: Only test point display

: Wrapping or soldering

: B2 (12V

: 5V

)

4.INDICATIONS ON THE CIRCUIT DIAGRAM

(1)Resistors

Resistance value

No unit : [Ω]

K M

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

Others : As specified

Type

No indication

OMR

MFR

MPR

UNFR

Composition resistor 1/2 [W] is specified as 1/2S or Comp.

(2)Capacitors

Capacitance value

1 or higher : [pF]

less than 1

Withstand voltage

No indication : DC50[V]

Others : DC withstand voltage [V]

AC indicated Electrolytic Capacitors

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

: [kΩ]

: [MΩ]

: Carbon resistor

: Oxide metal film resistor

: Metal film resistor

: Metal plate resistor

: Uninflammable resistor

: Fusible resistor

: [µF]

: AC withstand voltage [V]

(7)Ground symbol

: LIVE side ground

: ISOLATED(NEUTRAL) side ground

: EARTH ground

: DIGITAL ground

5.NOTE FOR REPAIRING SERVICE

This model's power circuit is partly 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 without any notice.

NOTE Due improvement in performance, some part numbers show in the circuit diagram may not agree with those indicated in the part list. When ordering parts, please use the numbers that appear in the Parts List.

)

(No.YA258)2-1

CONTENTS

SEMICONDUCTOR SHAPES ...................................................................... 2-2

BLOCK DIAGRAM ........................................................................................ 2-3

CIRCUIT DIAGRAMS .................................................................................... 2-5

MAIN PWB CIRCUIT DIAGRAM ................................................................................................................ 2-5

AV SELECTOR PWB CIRCUIT DIAGRAM ................................................................................................. 2-9

FRONT CONTROL PWB CIRCUIT DIAGRAM ............................................................................................ 2-9

LED & POWER SWITCH PWB CIRCUIT DIAGRAM .................................................................................. 2-9

CRT SOCKET PWB CIRCUIT DIAGRAM .................................................................................................. 2-11

PATTERN DIAGRAMS .............................................................................. 2-13

MAIN PWB PATTERN ............................................................................................................................. 2-13

AV SELECTOR PWB PATTERN ............................................................................................................... 2-15

FRONT CONTROL PWB PATTERN ......................................................................................................... 2-16

LED & POWER SWITCH PWB PATTERN ................................................................................................ 2-16

CRT SOCKET PWB PATTERN ................................................................................................................. 2-15

USING P.W. BOARD

PWB ASS'Y name AV-N29F46/S AV-N29F46/R AV-N34F46/Y AV-N34F46/Z

MAIN P.W. BOARD

CRT SOCKET P.W. BOARD SGJ-3523A-M2

FRONT CONTROL P.W. BOARD

AV SELECTOR P.W. BOARD

LED & POWER SWITCH P.W. BOARD

SGJ-1587A-M2

SGJ-6521A-M2

SGJ-5521A-M2

SGJ-7521A-M2

SGJ-1588A-M2 SGJ-1589A-M2 SGJ-1590A-M2

φφ

SGJ-3521A-M2 SGJ-3522A-M2

SEMICONDUCTOR SHAPES

TRANSISTOR

BOTTOM VIEW FRONT VIEW TOP VIEW

CHIP TR

E C B

ECB

BOTTOM VIEW FRONT VIEW TOP VIEW

OUT E

IN OUTE

CHIP IC

(G)E(S)C(D)

TOP VIEW

1 N

ECB

1 N

2-2(No.YA258)

BLOCK DIAGRAM

INPUT 3

INPUT 1

INPUT 2

AUDIO

OUT

INPUT 2

COMPONENT

VIDEO

FRONT CONTROL

PWB

Y1/C1

MPX

TU001

TUNER

Y2/V2 V2

Pb2

Y2/Pb2/Pr2

Pr2

VTV

IC5501

AV SW

VTV

Y/C

C IN

CHROMA

PROCESS

Y PROCESS

Y/C

SVM_OUT

L/R

MPX

SYNC.

SEP

Pb2/Pr2

L3/R3

MTS DECODE

R/G/B

BASE BAND

PROCESS

Y1/C1

L1/R1

L2/R2

AUDIO OUT L/R

Y IN

Y2/Pb2/Pr2

IC911 IC921

POWER REG ERROR AMP

PC921

VOLTAGE

FEEDBACK

Y/C

IC5001

TV SW

CUTOFF/

DRIVE

HORIZONTAL

PROCESS

H_OUT

AV SELECTOR PWB

IC5201

3L DIGITAL

COMB

FILTER

MTS DECODE/AUDIO CONTROL/AUDIO SELECT

SURROUND

MAIN CPU/CLOSED CAPTION DECODE/

IC201

VIDEO PROCESS/RGB PROCESS/ SYNC. SEP/DEF PROCESS

OSD R/G/B/Ys

RGB

GENERATE

VERTICAL PROCESS

V_OUT

CLOSED

CAPTION

DECODER

PARABOLA

PROCESS

TONE

CONTROL

EW_OUT

CPU

SCL1SDA1

VOLUME

CONTROL

L/R

IC702

MEMORY

IC421

V OUT

Q511

H OUT

L/R

CRT SOCKET PWB

Q3304

IC651

BBE

R/G/B

Q541~Q543

SIDE PIN OUT

Q3306

RGB OUT

Q3103

Q3107

Q3109

VM AMP

AUDIO OUT

IC621

CRT

VM COIL

SPEAKER L

SPEAKER R

DEF

YOKE

LF901

D901

T921

TRANSF.

FOCUS

T502

HVT

SCREEN

MAIN PWB

2-4(No.YA258)(No.YA258)2-3

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