JVC AV-N29F45/S, AV-N29F45/Z Schematics

SCHEMATIC DIAGRAMS

COLOR TELEVISION

YA05820043

AV-N29F45/S,

AV-N29F45

CD-ROM No.SML200403

/Z

BASIC CHASSIS

GJ4

COPYRIGHT © 2004 VICTOR COMPANY OF JAPAN, LIMITED

No.YA058

2004/3

AV-N29F45

/S

, AV-N29F45

/Z

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 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 20k

: H

: V

: Othters

: All DC voltage values

/V

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 : [

K
M

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

Others : As specified

Type

No indication

OMR

MFR

MPR

UNFR

FR

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]

]

]

: [ k

: [M

]

: 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.YA058

)

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

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

FRONT CONTROL PWB CIRCUIT DIAGRAM .......................................................................................... 2-13

LED & POWER SW PWB CIRCUIT DIAGRAM ........................................................................................ 2-14

PATTERN DIAGRAMS .............................................................................. 2-15

MAIN PWB PATTERN .............................................................................................................................. 2-15

AV SELECTOR PWB PATTERN ............................................................................................................... 2-17

CRT SOCKET PWB PATTERN ................................................................................................................. 2-17

FRONT CONTROL PWB PATTERN ......................................................................................................... 2-18

LED & POWER SW PWB PATTERN ........................................................................................................ 2-18

CHANNEL CHART(US) .............................................................................. 2-19

CHANNEL CHART(CA).............................................................................. 2-20

USING P.W. BOARD

PWB ASS'Y nam e AV-N29F45/S AV-N29F45/Z

MAIN P.W. BOARD SGJ-1561A - M2 SGJ-1562A -M2

AV SELECTOR P.W. BOARD SGJ-5506A -M2

←

CRT SOCKET P.W. BOARD SGJ-3511A - M2 SGJ-3512A -M2

FRONT CONTROL P.W. BOARD SGJ-6506A -M2

LED & POWER SW P.W. BOARD SGJ-7506A -M2

←
←

SEMICONDUCTOR SHAPES

TRANSISTOR

BOTTOM VIEW FRONT VIEW TOP VIEW

CHIP TR

E
C
B

ECB

IC

BOTTOM VIEW FRONT VIEW TOP VIEW

OUT
E

IN

IN OUTE

B

(G)E(S)C(D)

1 N

ECB

ECB

1

1 N

C

BE

N

CHIP IC

2-2

TOP VIEW

N

N

N

1

N

1

N

No.YA058

BLOCK DIAGRAM

INPUT 3

INPUT 1

INPUT 2

AUDIO

OUT

V3

L3

R3

Y/C

V1

L1

R1

L2

R2

L

R

FRONT
CONTROL
PWB

AUDIO OUT L/R

MPX

L1/R1

L2/R2

VTV

Y/C

IC5501

AV SW

V1

V2

V3

Y/C

L3/R3

IC5001

MTS DECODE

IC5201

V

3L DIGITAL

COMB

FILTER

Y/C

MTS DECODE/AUDIO CONTROL

SURROUND

AV SELECTOR PWB

TONE

CONTROL

VOLUME

CONTROL

L/R

CRT SOCKET PWB

Q3304

R/G/B

Q3306

RGB OUT

Q3103
Q3107

VM AMP

Q3109

VM

CRT

VM COIL

INPUT 2

COMPONENT

VIDEO

Y/V2 V2

Pb

Y, R-Y, B-Y

Pr

LF901

TU001

TUNER

IF

D901

IC101

IF DET

VTV

Y IN

V2

Y, R-Y, B-Y

IC911 IC921

POWER REG ERROR AMP

T921

SW

TRANSF.

C IN

Y PROCESS

Y

PC921

VOLTAGE

FEEDBACK

B1

CHROMA

PROCESS

Pb, Pr

Y/C

SYNC.

SEP

VM

SVM_OUT

BASE BAND

PROCESS

R/G/B

CUTOFF/

DRIVE

VERTICAL
PROCESS

MAIN CPU/CLOSED CAPTION DECODE/
VIDEO PROCESS/RGB PROCESS/
SYNC. SEP/DEF PROCESS

OSD

GENERAT

CLOSED

CAPTION

DECODER

MICOM

L / R

IC641

SURROUND

(A.H.S)

IC651

BBE

IC621

AUDIO OUT

SPEAKER L

SPEAKER R

RGB

SW

IC201

IC702

SCL1

HORIZONTAL

PROCESS

H_OUT

H

V_OUT

V

SDI1

MEMORY

DEF

YOKE

V

H

IC421

VERT OUT

Q511

H OUT

V

H

B1

FOCUS

T502

HVT

SCREEN

MAIN PWB

No.YA058 No.YA058

2-42-3