JVC AV-32D104/AMA, AV-32D104/ARA, AV-32D104/AYA, AV-32D304/AMA, AV-32D304/ARA Service Manual

SERVICE MANUAL

COLOR TELEVISION

5212120035

AV-32D104/AYA, AV-32D104/ARA,
AV-32D104/AMA, AV-32D304/AYA,
AV-32D304/ARA, AV-32D304/AMA

BASIC CHASSIS

GE3

AV-32D104

[RM-C1255G]

1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

2 SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15

5 TROUBLE SHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-35

AV-32D304

[RM-C1253G]

TABLE OF CONTENTS

COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LIMITED

No.52121

2003/5

SPECIFICATION

Items

Dimensions (W × H × D) 85.9 cm × 68.4 cm × 54.8 cm (33-7/8" × 27" × 21-5/8")
Mass 52.0kg (114.4Ibs)
TV RF System CCIR(M)
Color System NTSC
Sound System BTSC (Multi Channel Sound)
TV Receiving Channels

and Frequency

TV / CATV Total Channel 180 Channels
Intermediate Frequency Video IF Carrier 45.75 MHz

Color Sub Carrier 3.58 MHz
Power Input AC120V , 60Hz
Power Consumption 128W
Picture Tube Full square Visible size:80cm (32") measured diagonally, (W65.6 cm × H49.6 cm)
High Voltage 31kV ±1.3kV (at zero beam current)
Speaker 5cm × 12cm (2" × 4-3/4"), Oval type × 2
Audio Power Output 5W + 5W
Antenna Terminal (VHF / UHF) 75 Ω unbalanced coaxial, F-type connector
INPUT1 (Rear) VIDEO 1V(p-p), negative sync, 75 Ω, RCA pin jack × 1

S-VIDEO Mini DIN 4-pin × 1

AUDIO (L/MONO, R) 500mVrms(-4dBs), high impedance, RCA pin jack × 2

INPUT2 (Rear) VIDEO --------- 1V(p-p), negative sync, 75 Ω, RCA pin

COMPONENT VIDEO Y&Video : 1V(p-p), negative sync, 75 Ω,

AUDIO (L / MONO, R) 500mVrms(-4dBs), high impedance, RCA pin jack × 2

INPUT3 (Front) VIDEO 1V(p-p), negative sync, 75 Ω, RCA pin jack × 1

AUDIO (L / MONO, R) 500mV(rms)(-4dBs), high impedance, RCA pin jack × 2

AUDIO OUTPUT (L / R) 500mV(rms)(-4dBs)low Impedance, (400kHz when modulated 100%) ,

AV COMPULINK lll --------- 3.5mm mini jack × 1
Remote Control Unit RM-C1255G (AA/R6/UM-3 battery × 2) RM-C1253G (AA/R6/UM-3 battery × 2)

VHF LOW 02ch~06ch : 54MHz~88MHz

VHF HIGH 07ch~13ch : 174MHz~216MHz

UHF 14ch~69ch : 470MHz~806MHz

CATV 54MHz~804MHz

Low Band : 02~06, A-8 by 02~06&01
High Band : 07~13 by 07~13
Mid Band : A~I by 14~22
Super Band : J~W by 23~36
Hyper Band : W+1~W+28 by 37~64
Ultra Band : W+29~W+84 by 65~125
Sub Mid Band : A8, A4~A1 by 01, 96~99

Sound IF Carrier 41.25 MHz (4.5MHz)

Y : 1V(p-p), negative sync, 75 Ω
C : 0.286V(p-p), (burst signal), 75 Ω

Pb/Pr : 0.7V(p-p), 75 Ω, RCA pin jack × 2

RCA pin jack × 2

AV-32D104 AV-32D304

RCA pin jack × 1

Contents

jack × 1
Y : 1V(p-p), negative sync, 75 Ω,

RCA pin jack × 1

Pb/Pr : 0.7V(p-p), 75 Ω, RCA pin jack × 2

Design & specifications are subject to change without notice.

1-2 (No.52121)

SECTION 1

PRECAUTION

1.1 SAFETY PRECAUTIONS

(1) The design of this product contains special hardware, many

circuits and components specially for safety purposes. For
continued protection, no changes should be made to the original
design unless authorized in writing by the manufacturer.
Replacement parts must be identical to those used in the original
circuits. Service should be performed by qualified personnel only.

(2) Alterations of the design or cir cuitry of the pr oducts shou ld n ot be

made. Any design alterations or additions will void the
manufacturer's warranty and will further relieve the manufacturer
of responsibility for personal injury or property damage resulting
therefrom.

(3) Many electrical and me chanical parts in the products have special

safety-related characteristics. These characteristics are often not
evident from visual inspection nor can the protection afforded by them
necessarily be obtained by using replacement components rated for
higher voltage, wattage, etc. Replacement parts w hich have these
special safety characteristics are identified in the parts list of Service
manual. Electrical components having such features are

identified by shading on the schematics and by ( ) on the
parts list in Service manual. The use of a substitute replacement

which does not have the same safety characteristics as the
recommended replacement part shown in the part s list of Service
manual may cause shock, fire, or other hazards.

(4) Use isolation transformer when hot chassis.

The chassis and any sub-chassis contained in some products are
connected to one side of the AC power line. An isolation
transformer of adequate capacity should be inserted between the
product and the AC power supply point while performing any
service on some products when the HOT chassis is exposed.

(5) Don't short between the LIVE side ground and ISOLATED

(NEUTRAL) side ground or EARTH side ground when repairing.
Some model's power circuit is partly different in the GND. The difference
of the GND is shown by the LIVE : ( ) side GND, the ISOLATED
(NEUTRAL) : ( ) side GND and EARTH : ( ) side GND.
Don't short between the LIVE side GND and ISOLATED (NEUTRAL)
side GND or EARTH side GND and never measu re the LIVE side
GND and ISOLATED (NEUTRAL) side GND or EARTH side GND at
the same time with a measuring apparatus (oscilloscope etc.). If
above note will not be kept, a fuse or any parts will be broken.

(6) If any repair has been made to the chassis, it is recommended that

the B1 setting should be checked or adjusted (See ADJUSTMENT
OF B1 POWER SUPPLY).

(7) The high voltage applied to the picture tube must conform with that

specified in Service manual. Excessive high voltage can cause an
increase in X-Ray emission, arcing and possible component
damage, therefore operation under excessive high voltage
conditions should be kept to a minimum, or should be prevented.
If severe arcing occurs, remove the AC power immediately and
determine the cause by visual inspection (incorrect installation,
cracked or melted high voltage harness, poor soldering, etc.). To
maintain the proper minimum level of soft X-Ray emission,
components in the high voltage circuitry including the picture tube
must be the exact replacements or alternatives approved by the
manufacturer of the complete product.

(8) Do not check high voltage by drawing an arc. Use a high voltage

meter or a high voltage probe with a VTVM. Discharge the picture
tube before attempting meter connection, by connecting a clip lead
to the ground frame and connecting the other end of the lead
through a 10k

(9) When service is required, observe the original lead dress. Extra

precaution should be given to assure correct lead dress in the high
voltage circuit area. Where a short circuit has occurred, those
components that indicate evidence of overheating should be
replaced. Always use the manufacturer's replacement
components.

Ω 2W resistor to the anode button.

(10) Isolation Check (Safety fo r Electrical Shock Hazard)

After re-assembling the product, always perform an isolation
check on the exposed metal parts of the cabinet (antenna
terminals, video/audio input and output terminals, Control knobs,
metal cabinet, screw heads, earphone jack, control shafts, etc.) to
be sure the product is safe to operate without danger of electrical
shock.

a) Dielectric Strength Test

The isolation between the AC primary circuit and all metal parts
exposed to the user, particularly any exposed metal part having a
return path to the chassis should withstand a voltage of 3000V AC

(r.m.s.) for a period of one second. (. . . . Withstand a voltage of

1100V AC (r.m.s.) to an appliance rated up to 120V, and 3000V
AC (r.m.s.) to an appliance rated 200V or more, for a period of one
second.)
This method of test requires a test equipment not generally found
in the service trade.

b) Leakage Current Check

Plug the AC line cord directly into the AC outlet (do not use a line
isolation transformer during this check.). Using a "Leakage
Current Tester", measure the leakage current from each exposed
metal part of the cabinet, particularly any exposed metal part
having a return path to the chassis, to a known good earth ground
(water pipe, etc.). Any leakage current must not exceed 0.5mA AC
(r.m.s.).
However, in tropical area, this must not exceed 0.2mA AC (r.m.s.).

Alternate Check Method

Plug the AC line cord directly into the AC outlet (do not use a
line isolation transformer during this check.). Use an AC
voltmeter having 1000Ω per volt or more sensitivity in the
following manner. Connect a 1500Ω 10W resistor paralleled by
a 0.15µF AC-type capacitor between an exposed metal part and
a known good earth ground (water pipe, etc.). Measure the AC
voltage across the resistor with the AC voltmeter. Move the
resistor connection to each exposed metal part, particularly any
exposed metal part having a return path to the chassis, and
measure the AC voltage across the resistor. Now, reverse the
plug in the AC outlet and repeat each measurement. Any
voltage measured must not exceed 0.75V AC (r.m.s.). This
corresponds to 0.5mA AC (r.m.s.).
However, in tropical area, this must not exceed 0.3V AC
(r.m.s.). This corresponds to 0.2mA AC (r.m.s.).

AC VOLTMETER
(HAVING 1000 /V,
OR MORE SENSITIVITY)

0.15 F AC-TYPE

PLACE THIS PROBE

1500 10W

(11) High voltage hold down circuit check.

GOOD EARTH GROUND

ON EACH EXPOSED
METAL PART

After repair of the high voltage hold down circuit, this circuit shall
be checked to operate correctly.See item "How to check the high
voltage hold down circuit".

This mark shows a fast
operating fuse, the
letters indicated below
show the rating.

A V

POWER CORD
REPLACEMENT WARNING.

Connecting the white line side of power
cord to "WHT" character side.

PWB

White line side

WHT

PW

(No.52121)1-3

SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

2.1 FEATURES

• Titl e CLOSED CAPTION broadcast of C1~C4 and T1~T4 formula is receivable.

• The voice multiplex function of the MTS system is built in.

• By the 3-line digital comb filter, the refreshed image can be seen.

• Expression of a favorite screen can be chosen by the VIDEO STATUS function.

• A program can be enjoyed with a powerful sound by the HYPER SURROUND function.

• Since the V-chip is built in, it can choose, view and listen to a healthy program.

• Th e RETURN + function is built-in.

• A quick fa vorite program can be looked for by the HYPER-SCAN function.

• Since the component signal input terminal is equipped, it reappears direct without deteriorating the signal from DVD.

• By the THEATER PRO function, a reality to which it is viewing and listening in the movie theater can be tasted. (AV-32D304 only)

• By the COMPULINK III function, operation interlocked with the DVD deck can be performed from remote control. (AV-32D304 only)

2.2 HOW TO IDENTIFY MODELS

How to recognize from the appearance of the model concerned is written below.
Please distinguish from several contents currently printed on the rating label.

MODEL NAME

AV-32D104

or AV-32D304

***********

DISTINGUISH NAME

AYA , ARA or AMA

1-4 (No.52121)

2.3 MAIN DIFFERENCE LIST Item

AV-32D104/AYA AV-32D104/ARA AV-32D104/AMA AV-32D304/AYA AV-32D304/ARA AV-32D304/AMA

THEATER PRO BUTTON NON YES
WHITE BLANCE

NON YES

(COLOR TEMP.)
GAME BUTTON YES NON
BBE SYSTEM NON YES
VIDEO-IN

NON (comnon use to Component-Y) YES

(INPUT-2:REAR-TERMINAL)
AV COMPULINK lll NON YES
REMOTE CONTROL UNIT RM-C1255G RM-C1253G
ILLUMINATION

NON YES

(REMOTE CONTROL UNIT)
MAIN PWB ASS'Y
CRT SOCKET PWB ASS'Y
AV SELECT PWB ASS'Y
FRONT CABINET ASS'Y
TERMINAL BOARD
PICTURE TUBE (ITC)

SGE-1505A-M2 SGE-1509A-M2 SGE-1501A-M2 SGE-1507A-M2 SGE-1511A-M2 SGE-1503A-M2
SGE-3503A-M2 SGE-3505A-M2 SGE-3501A-M2 SGE-3503A-M2 SGE-3505A-M2 SGE-3501A-M2

SGE-5501A-M2
LC10641-006A-A
LC20899-006A-A

←←
←←
←←

SGE-5502A-M2
LC10641-005C-A
LC20899-004A-A

←←
←←
←←

A80AKB50X04 A80AEJ15X01 A80JUA061X06 A80AKB50X04 A80AEJ15X01 A80JUA061X15

2.4 FUNCTIONS  FRONT PANEL CONTROLS

INPUT3

VIDEO

L/MONO-AUDIO-R

1

2 3 4 5 7

1

INPUT 3 : VIDEO

2

INPUT 3 : AUDIO L/MONO

3

INPUT 3 : AUDIO R

4

MENU ( ) BUTTON

5

OPERATE ( / ) BUTTON

6

MENU

- CHANNEL + - VOLUME + POWER ON TIMER

OPERATE

8

CHANNEL (-/+) BUTTON

6

7

VOLUME (-/+) BUTTON

8

POWER SW BUTTON

9

ON TIMER / POWER INDICATOR

10

REMOTE CONTROL SENSOR

109

(No.52121)1-5

 REAR TERMINAL

4

3 2 1

AUDIO VIDEO S-VIDEO

R L/MONO

OVER

INPUT 1

A B

A

INPUT 1 TERMINAL

1

S-VIDEO

2

VIDEO

3

AUDIO-L/MONO

4

AUDIO-R

AV-32D104

7

6

R

L

AUDIO OUT

C

1112 9

COMPONENT

VIDEO-IN

8 10

INPUT 2

VIDEO

B

INPUT 2 TERMINAL

6

Y

PB

PR

75

(VHF / UHF)

AUDIO-L/MONO

7

AUDIO-R

8

COMPONENT-Y / VIDEO-IN

9

COMPONENT-P

10

COMPONENT-P

B

R

14

C

AUDIO OUTPUT TERMINAL (Fixed)

11

AUDIO-L

12

AUDIO-R

14

ANTENNA TERMINAL
758*(7*(

AV-32D304

A

INPUT 1 TERMINAL

1

S-VIDEO

4 3 2 1

AUDIO VIDEO S-VIDEO

R L/MONO

OVER

INPUT 1

A B

2

VIDEO

3

AUDIO-L/MONO

4

AUDIO-R

5

COMPONENT

INPUT 2

B

INPUT 2 TERMINAL

5

Y

P

B

PR

75

(VHF / UHF)

14

VIDEO

6

AUDIO-L/MONO

7

AUDIO-R

8

COMPONENT-Y

9

COMPONENT-P

10

COMPONENT-P

B

R

7

6

R

L

AUDIO OUT

AV CONPULINK

12

C

11 13 9

8 10

C

AUDIO OUTPUT TERMINAL (Fixed)

11

AUDIO-L

12

AUDIO-R

13

COMPULINK TERMINAL

14

ANTENNA TERMINAL
758*(7*(

1-6 (No.52121)

 REMOTE CONTROL UNIT

1

2

3

4

5

6

7

19

8

9

10

11

12

18

13

14

16

17

15

1

VCR/ DVD KEY

2

TV/ CATV KEY

3

INPUT KEY:

4

DISPLAY KEY

5

SLEEP TIMER KEY:

6

HYPER SURROUND KEY

TV VIDEO1 VIDO2 V2-COMPONENT VIDEO3

0 15 30 165 180

Hyper Surround Can be Changed ON/OFF

7

VIDEO STATUS KEY:

8

MUTING KEY

9

VOLUME (+/-) KEY / VOL. ( / ) KEY

10

MENU KEY:

11

POWER KEY

12

CHANNEL NUMBER KEY

13

GAME KEY

C.C.

14

15

CHANNEL (+/-) KEY / CH. ( / ) KEY

16

EXIT KEY

17

VCR CONTROL KEY

18

RETURN + KEY

19

100+KEY

PICTURE ADJUST SOUND ADJUST

(CLOSED CAPTION) KEY:

STANDARD DYNAMIC THEATER GAME

INITIAL SETUP CLOCK/TIMERS

OFF CAPTION TEXT

RM-C1255G [AV-32D104]

10

11

RM-C1253G [AV-32D304]

1

1

2

12

3

4

5

6

7

8

9

13

20

19

14

15

16

17

18

VCR/ DVD KEY

2

TV/ CATV KEY

INPUT KEY:

3

DISPLAY KEY

4

5

SLEEP TIMER KEY:

SOUND KEY

6

TV VIDEO1 VIDO2 V2-COMPONENT VIDEO3

0 15 30 165 180

HYPER SORRUND and BBE Can be Changed ON/OFF

7

VIDEO STATUS KEY:

8

THEATER PRO KEY

9

MUTING KEY

10

VOLUME +/- KEY

MENU KEY

11

12

POWER KEY

13

CHANNEL NUMBER KEY

14

LIGHT KEY

15

C.C. (CLOSED CAPTION) KEY:

16

CHANNEL (+/-)KEY / CH. ( / ) KEY

17

EXIT KEY

18

VCR CONTROL KEY

19

RETURN + KEY

20

100+KEY

PICTURE ADJUST SOUND ADJUST

STANDARD DYNAMIC THEATER GAME

/ VOL. ( / ) KEY

INITIAL SETUP CLOCK/TIMERS

OFF CAPTION TEXT

(No.52121)1-7

2.5 SYSTEM BLOCK DIAGRAM

IC702

MEMORY

SCL0 SDA0 SCL0 SDA0 SCL0 SDA0

IC501

MTS

2.6 MAIN MI-COM (CPU) PIN FUNCTION

Pin
No.

Pin name Function

LED/ADC8Bit

1

2

ADC8bit

3

ADC8bit/TC1/Int2

uPLDVss

4

Reset

5

Xout

6

Xin

7

TEST

8

uP DVdd

9

AGC_MUTE

10

UP VVss

11

TV HGND

12

FBP in

13

Hout

14

HVcc

15

HAFC 1

16

Vsaw

17

Vout

18

EW out

19

Xray

20

Ys

21

Cb in

22

Y in

23

Cr in

24

TV DVcc

25

V3in/Cin

26

EHTin

27

V2in/Yin

28

I/O I/O

AFT control2

I

AFT control1

I

Key IN

I

GND

-

RESET,RESET:[L]

I

8MHz OSC

O

8MHz OSC

I

GND

-

5V

-

AGC_MUTE,MUTING:[L],NORMALY:[H]

O

GND

-

GND

-

FBP

I

H OUT

O

9V

-

H AFC

-

GND

-

V OUT

O

EW OUT

O

X RAY

I

YS

I

Cb INPUT

I

Y INPUT

I

Cr INPUT

I

3.3V

-

V3 IN

I

EHT IN

I

V2 IN

I

SCL1

SDA1

MAIN MI-COM

IC201

(MICOM/V/C/DEF)

SCL0 SDA0

IC5501

AV SW

Pin
No.

REMOCON

IC7701

REMOCON
RECEIVER

AFT1

IC101

IF DET

SCL0 SDA0

TU001

TUNER

IC5201

3L Y/C

Pin name Function

29

TV DGND

30

V1in

31

ABCL

Moni OUT

32

Black Det

33

SVMout

34

APL DET

35

Chroma PLL

36

fsc out

37

TV YC Vcc

38

R out

39

40

G out

B out

41

RGB Vcc

42

IK in

43

44

TV AGND

45

uP AGND

uP Avdd

46

47

MAIN-POWER

HAZARD

48

SDA SDAO

49

SDA SDAO

50

PWM7Bit/TC2/Int0

51

PWM14bit

52

Int5/Stop

53

Int4/TC3

54

Int3/RXIN

55

LED2/CSOUT

56

GND

I

V1 IN

I

ABCL IN

O

MONITOR

-

BLACK DETECTION

O

SVM OUT

-

APL FILTER

-

APL FILTER

O

3.58MHz

-

5V

O

R OUT

O

G OUT

O

B OUT

-

9V

I

IK INPUT

-

GND

-

GND

-

5V

O

MAIN POWER:ON:[L],OFF[H]

O

SELFCHECK:HAZARD:[H],NORMALY:[L]

I

SCA0

I/O

SCL0

O

SDA1(EEPROM)

I/O

AGC ADJUST

O

SCL1(EEPROM)

O

LED,ON:[L],OFF:[H]

O

REMOCON INPUT

I

COMPULINK

I

1-8 (No.52121)

SECTION 3

DISASSEMBLY

3.1 DISASSEMBLY PROCEDURE

3.1.1 REMOVING THE REAR COVER

• Unplug the power plug.
(1) As shown in Fig.2, take out the 14 screws [A].
(2) Remove the REAR COVER toward you.

NOTE :

When reinstalling the REAR COVER, carefully push it in ward
after inserting the chassis into the REAR COVER groove.

3.1.2 REMOVING THE CHASSIS BASE

• Remove the REAR COVER.
(1) Slightly raise the both sides of the CHASSIS BASE by

hand, and teka out the 2 claws [B] (Fig.1 and Fig.2) under
the both sides of the chassis from the chassis rail.

(2) As shown in Fig.1, draw the CHASSIS BASE backward

along the chassis rail [C] (Fig.1) in the arrow direction [D]
(Fig.2).
(If necessary, detach the wire clamp, connector's etc.)

NOTE :

When conducting a check with power supplied, be sure to
confirm that the CRT earth wire is connected to the CRT
SOCKET PWB and the MAIN PWB.

3.1.3 REMOVING THE TERMINAL BOARD

• Remove the REAR COVER.
(1) As shown in Fig.2, take out the 4 screws [E].
(2) When you pull out the TERMINAL BOARD, it can be

removed.

3.1.6 REMOVING THE SPEAKER

• Remove the REAR COVER.

• Remove the CHASSIS BASE.
(1) As shown in Fig.2, take out the 4 screws [H].
(2) Follow the same steps when removing the other hand

SPEAKER.

3.1.7 CHECKING THE MAIN PW BOARD

• To check the backside of the MAIN PWB.
(1) Pull out the CHASSIS BASE. (Refer to REMOVING THE

CHASSIS BASE).

(2) Erect the chassis vertically so that you can easily check

from the backside of the MAIN PWB.

CAUTION :

• When erecting the chassis, be careful so that there will be no

contacting with other PWB.

• Before turning on power, make sure that the CRT earth wire

and other connectors are properly connected.

3.1.8 WIRE CLAMPING AND CABLE TYING

(1) Be sure to clamp the wire.
(2) Never remove the cable tie used for tying the wires

together.
Should it be inadvertently removed, be sure to tie the wires
with a new cable tie.

FRONT CABINET

3.1.4 REMOVING THE FRONT CONTROL PW BOARD

• Remove the REAR COVER.

• Remove the CHASSIS BASE.
(1) As shown in Fig.2, ta ke out the 3 screws [F] attached the

FRONT CONTROL PWB with the front cabinet.

(2) Then remove the FRONT CONTROL PWB.

3.1.5 REMOVING THE FRONT TERMINAL PW BOARD

• Remove the REAR COVER.

• Remove the CHASSIS BASE.
(1) As shown in Fig.2, take out the 2 screws [G].
(2) Then remove the FRONT TERMINAL PWB.

C

CHASSIS BASE

MAIN PWB

B

Fig.1

(No.52121)1-9

FRONT CABINET

CRT

SPEAKER

H

CRT SOCKET PWB

FRONT TERMINAL PWB

G

CLAW

POWER CORD

B

MAIN PWB

HTV

CHASSIS BASE

SPEAKER

H

FRONT
CONTROL
PWB

F

CLAW

B

AV SEL PWB

REAR COVER

D

E

TERMINAL BOARD

1-10 (No.52121)

NOTE
This illustration describes about AV-32D304. Although the
AV-32D104 is slightly different from this illustration, it can

A

use for AV-32D104 in the same steps as this illustration.

Fig.2

3.2 REMOVING THE CRT

NOTE:

• Replacement of the CRT should be performed by 2 or more

persons.

• After removing the REAR COVER, CHASSIS etc.,
(1) Putting the CRT change table on soft cloth, the CRT

change table should also be covered with such soft cloth
(shown in Fig. 3).

(2) While keeping the surface of CRT down, mount the TV set

on the CRT change table balanced will as shown in Fig. 3.

(3) Remove 4 screws marked by arrows with a box type

screwdriver as shown in Fig. 4.

NOTE:

Since the cabinet will drop when screws have been
removed, be sure to support the cabinet with hands.

(4) After 4 screws have been removed, put the ca binet sl owly

on cloth (At this time, be carefully so as not to damage the
front
surface of the cabinet) shown in Fig. 5.

NOTE:

• The CRT should be assembled according to the
opposite sequence of its dismounting steps.

• The CRT change table should preferably be smaller
that the CRT surface, and its height be about 35cm.

CRT CHANGE TABLE

CLOTH

CRT
CHANGE
TABLE

Fig.3

CRT

Fig.4

CRT

APPROX.
35cm

BOX
TYPE
SCREW
DRIVER

CABINET

CRT
CHANGE T ABLE

Fig.5

(No.52121)1-11