JVC HV-53PRO, HV-53PRO/-A, HV-53PRO/EE Service Manual

SERVICE MANUAL

REAR PROJECTION TELEVISION

HV-53PRO

BASIC CHASSIS

HV-53PRO HV-53PRO HV-53PRO

/-A

/EE

CONTENTS

SPECIFICATIONS



SAFETY PRECAUTIONS



MAIN DIFFERENCE LIST



FEATURES



FUNCTIONS



INSTALLATION



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2 3 4 4 6 8

MAIN PARTS LOCATION



SPECIFIC SERVICE INSTRUCTIONS



SERVICE ADJUSTMENTS



PARTS LIST



OPERATING INSTRUCTIONS

★

STANDARD CIRCUIT DIAGRAM

★

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････････････････････････

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･･････････････

No.51913 Dec. 2001

9 10 19 41

2-1

HV-53PRO

(

)

SPECIFICATIONS

Item Content

Dimensions ( W

Mass

TV RF System

Colour System

Stereo System

Teletext System

Receiving

Frequency

Intermediate

Frequency

Colour Sub Carrier

Frequency

Power Input

Power Consumption

Aerial Input Terminal

Screen

Screen size

Projection tube

High Voltage

Audio Power Output

Speaker

Input

Terminal

××××H××××

D )

UHF

CATV

VIF

SIF

PAL

SECAM

NTSC

Video

Audio(L/R)

S – Video [VIDEO-1]

120cm×145.4cm×61.9cm

85.0kg

B/G, I, D/K, K1, M

PAL / SECAM / NTSC 3.58 / NTSC 4.43

A2 (B/G) / NICAM (B/G, I, D/K, K1)

Fastext (UK system) WST(world standard system)

46.25MH z ～ 168.25MHz

175.25MHz ～ 463.25MHz

471.25MHz ～ 863.25MHz

Mid (X～Z+2, S1～S10), Super (S 11～S20) & Hyper (S21～S41)

38.0MHz

32.5MHz(5.5MHz) / 32.0MHz(6.0MHz) / 31.5MHz(6.5MHz) / 33.5MHz (4.5MHz)

4.43MHz

4.40625MHz / 4.25MHz

3.58MHz / 4.43MHz

AC 110V～240V , 50/60Hz

Max 287W / Avg. 208W

75Ωunbalanced, Coaxial

Transparent screen (Unitized Fresnel lens / D ouble lenticular lens)

53”(135cm) meas ured diagonally (W : 107.7 c m×H : 80.8 cm)

17 cm (6.7”) tube ×3 (R / G / B)

+1.0kV

31.0kV (At zero beam current )

20W + 20W

1Vp-p 75Ω, RCA pin jack ×4

500mVrms(-4dBs), High Impedance, RCA pin jack ×8

Y : 1V(p-p) Positive (N egative sync provided) 75

C : 0.286V(p-p) (burst signal), 75

Mini-DIN 4 pin connector ×1

-1.5kV

16cm Round type×2

Component [VIDEO-2]

Output

Terminal Audio(L/R)

AV Compulink

Headphone jack

Remote Control Unit

Video

Y : 1V(p-p), 75Ω, RCA pin jack ×1

: B-Y 0.7V(p-p), 75Ω / CR : R-Y 0.7V(p-p), 75Ω, RCA pin jack ×2

1V(p-p) 75Ω, RCA pin jack ×1

500mVrms(-4dBs), Low Impedance, RCA pin jack ×2

Mono mini jack (φ3.5mm )

Stereo mini

RM-C214 (AA/R06 / UM-3 Dry cell battery×2)

ack

3.5mm

Design & specifications are subject to change without notice

No.51913

SAFETY PRECAUTIONS

HV-53PRO

1. The design of this product cont ains 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 identic al to those used in the original circuits. Service should be performed by qualified personnel only.

2. Alterations of the design or circuitry of the products should not 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 theref rom.

3. Many electric al and mechanical 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 which have these special safety characteristics are identified in the parts list of Service manual.

components having such features are identified by shading on the schematics and by ( manual.

have the s ame safety characteristics as the recommended replacement part shown in the parts list of Service manual may cause shock, fire, or other hazards.

The us e of a substitute replacement which does not

) on the parts list in Service



Electrical

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 differenc e 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 meas ure with a measuring apparatus (oscilloscope etc.) the LIVE side GND and ISOLATED(NEUTRAL) side GND or EARTH side GND at the same time. If above note will not be kept, a fuse or any parts will be broken.

5. 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).

6. The high voltage applied to the pictur e tube must conform with that specified in Service manual. Excessive high voltage can cause an incr ease 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 det ermine the caus e by visual inspection (incorrect installation, cr acked or melted high voltage harness, poor soldering, etc.). To maintain the proper minimum level of soft X-Ray emission, components in the high volt age circuitry including the picture tube must be the exact replacements or alternatives approved by the manuf acturer of the complete product.

7. Do not check high voltage by dr awing 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: 2W resistor to the anode button.

8. W hen service is required, observe the original lead dress. Extra precaution should be given to assure correct lead dress in the high voltage circuit area. W here a short circuit has occurred, those components that indicat e evidenc e of overheating should be replaced. Always us e the manufacturer's replacement components.

Isolation Check (Safety for Electrical Shock Hazard)

After re-assembling the product, always perf orm an isolation check on the exposed metal parts of the cabinet (antenna terminals, video/audio input and output terminals, Control knobs, metal c abinet, screwheads, earphone jack, c ontrol shafts, etc.) to be sure the product is safe to operate without danger of electr ic al shoc k.

(1)

Dielectric Strength Test

The isolation between the AC primary circuit and all metal parts exposed to the user, particularly any expos ed metal part having a return path to the chass is 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 applianc e

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 gener ally found in the s ervice trade.

(2)

Leakage Current Check

Plug the AC line cord directly into the AC outlet (do not use a line isolation transformer dur ing this check.). Using a " Leakage Current T ester", 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 c urrent must not exceed

0.5mA AC (r.m.s.). However, in tr opical area, this must not exceed 0.2mA AC (r.m.s.).

Alternate Check M ethod

zzzz

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 1000 ohms per volt or more sensitivity in the f ollowing manner. Connect a 1500: 10W resistor paralleled by a 0.15PF AC-type capacitor between an expos ed 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 resist or. Now, reverse the plug in the AC outlet and repeat each measurement. Any voltage meas ured must not exceed 0.75V AC (r.m.s.). This corresponds to 0.5mA AC (r.m.s.). However, in tr opical area, this must not exc eed 0.3V AC (r.m.s.). This corresponds to 0.2mA AC (r.m.s.).

AC VOLTMETER

0.15μF AC-T YPE

1500

GOOD EARTH GROUND

(HAVING 1000 OR MORE SENSITIVITY)

10W

/V,

PLACE THIS PROBE ON EACH EXPOSED METAL PART

No.51913

HV-53PRO

MAIN DIFFERENCE PART LIST



Part name

MICOM PWB



POWER CORD



RATING LABEL



INST BOOK



DIGEST MANUAL

ADAPTER PLUG

WARRANTY CARD

GOST LABEL

Model name

HV-53PRO HV-53PRO

SMF-0M201A SMF-0M202A SMF-0M201A

QMPN040-200-E2 QMPR010-200-E2 QMPK030-200-K

LC20700- 006A-0L LC20700-011A-0L LC20700- 010A-0L

LCT1078- 001A

LCT1079- 001A

××

FEATURES

New chassis design enable us e of an interactive on screen

control.

The TELETEXT SYSTEM has a built-in FASTEXT (UK system),

and WST (world standard system) system.

Digi Pure pro : Auto digi pure with motion picture c ompensation.

2-3PULL　DOWN : You can enjoy DVD movies at the highest

picture quality.

MOTION COMPENSATION : With this function, the seamless

reproduction of dynamic motion on the scr een has been realized.

/-A

LCT1078- 001A

LCT1080- 001A

CEMK002-001

Because this TV unit corresponds to multiplex broadc ast, users

can enjoy music progr ams and sporting events wit h live realism. In addition, BILINGUAL programs can be heard in their original language.

Built-in 100Hz (PAL / SECAM) scanning & progressive scan

(NTSC) TV.

HV-53PRO

LCT1078- 001A

LCT1081- 001A

BT-54012-2

LC41061- 001A

/EE

No. 51913

SYSTEM BLOCK DIAGRAM

MICON PWB

HV-53PRO

IC004

MEMORY

SDA 0 SCL

SDA 2 SCL 2

IC001

MICRO COMPUTER

SDA 1 SCL

MAIN PWB

IC701

BBE CONTROL

IC101

MULTI SOUND

PROCESSOR

IC301

DEF & RGB

PROCESSOR

TU001

TUNER

SYNC SEP PWB 100Hz PWB

IC301

SYNC SEP PWB

AV SW PWB

IC101

TU001

TUNER

IC101

VIDEO PROCESS

CODEC MAIN

IC151

VIDEO PROCESS

CODEC SUB

IC201

SAMPLE RATE

CONVERTER

IC301

ENHANCE

No. 51913

HV-53PRO

FUNCTIONS

FRONT TERMINAL & CONTROL

■■■■

4 5

1 2

REAR TERMINAL

■■■■

Headphone jack

Video-4 terminal

(S-VIDEO / VIDEO / L/MONO / R)

MENU/OK Button

Channel -/+ (MENU UP/DOWN) Button

VOLUME -/+ (MENU LEFT/RIGHT) Button

TV/VIDEO / EXIT Button

SPATIALIZER LAMP (Green)

POWER LAMP (Orange / Green)

MAIN POW ER SW Button

Video-1 (INPUT) terminal

(S-VIDEO / VIDEO / L/MONO / R)

Video-2 (INPUT) terminal

(VIDEO / L/MONO / R)

Video-3 (INPUT) terminal

(VIDEO / Y/C

Output (AUDIO/VIDEO) terminal

(VIDEO / L/MONO / R)

AV COMPULINK terminal

Aerial socket

/ L/ MONO / R)

B/CR

No. 51913

REMOTE CONTROL UNIT [RM-C214]

■■■■

POWER Key

BASS Key

SPATIALIZER Key

TV/VIDEO Key

PICTURE MODE Key

ZOOM Key

CHANNEL Key

-/-- Key

RETURN + Key

MULTI Key

VOLUME +/- Key

CHANNEL +/- Key

MUTING Key

PIP MODE

PIP Key

POSITION Key

FREEZE Key

SUB P (PIP)+&- Key

NEXT Key

SWAP Key

STROBE Key

DISPLAY Key

STEREO Ⅰ/ⅡKey

: Stereo / : Mono

: Bilingual (subⅠ)

Ⅰ

: Bilingual (subⅡ)

Ⅱ

FUNCTION Key

MENU/OK Key

COLOUR Key

COLOUR SYSTEM Key

SOUND SYSTEM Key

TELETEXT Key

HV-53PRO

No. 51913

HV-53PRO

INSTALLATION

1. INSTALLATION SITE

1. The rear of this set is provided with ventilation openings. Install the set more than 10 cm from a wall and in a location with good ventilation.

2. Avoid the following types of locations. (1) Unstable locations (location must be able to withstand heavy weight). (2) Locations subjected to direct sunlight. (3) Near stoves or other heating devices. (4) Locations subjected to humidity or oily smoke. (5) Dusty locations. (6) Locations with strong vibration.

2. INSTALLATION ADJUSTMENT

When installing, moving or changing the orientation of the set, perform static convergence adjustment according to the following procedure.

1. Pr ess the MENU/O K key of the remote control unit.

2. Select the "DIGITAL CONVERGENCE" in the PICTURE FEATURES menu. Then press the MENU / OK key.

3. The convergence adjustment scr een appears with crosses (+) displayed in 9 locations.

Locations where the crosses appear in 3 colours

Convergence adjustment is required. Perform steps 4 to 5.

Locations where the crosses are white:

The convergence is adjusted c orrectly.

lf all the crosses are white, no convergence adjustment is needed.

4. The locations of the crosses correspond to the positions of the number keys on the remote control. A box appears around the selected cross.

5. Press the NEXT button to change t he colour of the box t o the colour of the cross you want

to adjust (red or blue).

You c annot adjust the green cross.

6. Use the / and / buttons to adjust the position of the cross.

7. Press the MENU/OK button to end the convergence adjustment procedure.

lf you do not use the TV controls for roughly oneminute,

the convergence adjustment screen automatically disappears.

Fig:1

Fig:2

No. 51913

MAIN PARTS LOCATION

■

PWB ASS’Y ARRANGEMENT

The PWB ASS’Y is indicated below.

HV-53PRO

MAIN PW B ASS’Y

POW ER & DEF PWB ASS’Y

R CRT SOCKET PWB ASS’Y

G CRT SOCKET PWB ASS’Y

B CRT SOCKET PWB ASS’Y

R VM PW B ASS’Y

G VM PW B ASS’Y

B VM PW B ASS’Y

FRONT CONTROL PW B ASS’Y

REMOCON SENSOR PW B ASS’Y

POW ER SW PWB ASS’Y

FRONT CONTROL ASS’Y

FRONT CONTROL PWB

(SMF-1201A)

(SMF-2201A)

(SMF-7201A)

(SMF-7202A)

(SMF-7203A)

(SMF-8901A)

(SMF-3201A)

(SMF-3202A)

(SMF-3203A)

(SMF-8201A)

(SMF-8221A)

POWER SW PWB

REMOCON SENSOR PWB

CONVERGENCE PWB ASS’Y

DIGITAL CONVERGENCE MODULE PW B ASS’Y

CONVERGENCE POW ER PWB ASS’Y

REACTOR PWB ASS’Y

LINE FILTER PW B ASS’Y

DEF OSC PWB ASS’Y

MICOM PWB ASS’Y

SYNC SEP PWB ASS’Y

100Hz PWB ASS’Y

AV TERMINAL PW B ASS’Y

(SMF-0M201A) [HV-53PRO / HV-53PRO/EE]

(SMF-0M202A) [HV-53PRO/-A]

(SMF-0Z201A)

(SMF-5201A)

(Included in CONVERGENCE PW B)

(SMF-9501A)

(SMF-9801A)

(SMF-9901A)

(SMF-0H201A)

(SMF-0V201A)

(SMF-0S201A)

DIGITAL CONVERGENCE MODULE

CONVERGENCE PWB

MICOM PWB

LINE FILTER PWB

AV TERMINAL PWB

100Hz PWB

SYNC SEP PWB

MAIN PWB

CRT SOCKET PWB (R/G/B)

REACTOR PWB

CONVERGENCE POWER PWB

POWER & DEF

PWB DEF OSC PWB

(This figure is only MAIN UNIT )

VM PWB (R/G/B)

No. 51913

HV-53PRO

SPECIFIC SERVICE INSTRUCTIONS

SCREEN HANDLING CAUTIONS

SCREEN STORAGE

■■■■

Store the SCREEN ASS’Y in a standing position in order to avoid deformation. If the screen is stored horizontally, there is risk of deforming the screen f ace. When necessary to place the SCREEN ASS’Y horizontally, position the screen side upwards and sure to plac e spacers between the screen and resting site (floor or stand etc.) to prevent the scr een from sagging.

SCREEN SURFACE

■

Since the screen surf ace is easily scratched or soiled, us e ample c are when handling.

DISASSEMBLY PROCEDURE



If the screen or screen panel need to be replaced, remove the A scr ews

FRONT CABINET

SCREEN BRACKET (TOP)

(X4)

Leave the screen with flannel lens and double lenticular lens attached. If c annot be disassembled further.

SCREEN

SCREEN BRACKET (LEFT)

(X4)

SCREEN BRACKET (BOTTOM)

(X4)

SCREEN BRACKET (RIGHT)

(X4)

PROJECTION UNIT REPLACEMENT

ADJUSTMENT DURING REPLACEMENT

■

When replcing the three R, G and B pr ojection units, first replac e the R and B units and perform focus / screen / raster centering adjustments With reference to the G unit. Then replace the G unit and perform G focus / screen / convergence adjustment. Finally perf orm R & B Convergence adjustments.

DISASSEMBLY CAUTION

■

The projection units include locations that are not to be disassembled during s ervice. When replacing projection unit parts, disassemble to the state indicated in the f igure below. The figure indic ates screws and wires that are not to be removed. Use care not to remove these.

Deflection yoke wires : to connector on POW ER & DEF. PW B ASS’Y.



[R=”RHV”, G=”GHV”, B=”BHV”]

Convergence yoke wires : to connector on CONVERGENCE PWB ASS’Y



[R=”R”, G=”G”, B=”B”]

Use care to simultaneously removes all three-projection units.

R CRT SOCKET PWB ASS’Y G CRT SOCKET PWB ASS’Y B CRT SOCKET PW B ASS’Y

PC MAGNET

Check that tape is applied to the CRT neck.

If absent, the deflection yoke can dis lodge.

Do not remove screws

LENS ASS’Y

LENS ASS’Y SCREW (X 4)

No. 51913

PC MAGNET TAPE

DEF / CONVER. YOKE

CRT ASS’Y(COUPLER ASS’Y)

Do not disassembly

VM PWB PWB (R/G/B)

ANODE wires : to DIVIDER

●

DISASSEMBLY PROCEDURE

HV-53PRO

SPEAKER GRILLE

1. Remove 4 screws

2. Remove the SPEAKER GRILLE.

from rear side.

####

SPEAKER

Remove the SPEAKER GRILLE

1. Remove 4 screws

$$$$

2. Take out the SPEAKER.

3. Disconnect the speaker wire from speaker terminal.

FRONT BOARD

Remove the SPEAKER GRILLE.

1. Remove 4 screws

from rear side.

%%%%

2. Remove the FRONT BOARD.

CONTROL BOX

Remove the SPEAKER GRILLE.

1. Remove 4 screws

2. Disconnect the c onnector

PWB.

3. Disconnect the connector

CONTROL PWB.

4. Remove the CONTROL BOX.

attaching the CONTROL BOX.

&&&&

W , PS , H on the POW ER SW

F , X ,

on the FRON T

SPEAKER WIRE

SPEAKER

CONTROL BOX

FRONT BOARD

SPEAKER GRILL

PSW

POWER SW PWB

SCREEN ASS’Y

Remove the SPEAKER GRILLE.

Remove the CONTROL BOX.

1. Remove 4 screws

2. Remove 2 screws

3. Remove 12 screws

4. Remove the SCREEN ASS’Y. :

NOTE

Place the screen with face upwards on a flat stand.

Because of the large size, at least two pars ons are

recommended for removal and reassemble.

Use core not to scratch the screen during work.

During ass embly, be sur e to engage the left and right tabs

with the cabinet mounting positions.

When than sporting the SCREEN ASS’Y, avoid grasping the

top of the screen panel, instead grasp the left and r ight ar eas.

under the SCREEN ASS’Y from front side.

''''

under the SCREEN ASS’Y from front side.

((((

from rear side.

))))

FRONT CONTROL ASS’Y

REAR SIDE

F X

FRONT CONTROL PWB

No.51913

SCREEN ASS’Y

HV-53PRO

MIRROR

Remove the SPEAKER GRILLE.

Remove the CONTROL BOX.

Remove the SCREEN ASS’Y.

1. Remove 2 screws

2. Raise slightly to disengage of t he mirror from the hooks.

3. Remove the MIRROR. :

NOTE

The MIRROR is front-coated. D o not touch the front of the

MIRROR.

At least 2 persons are recommended for removing are

reassemble.

attaching the mirror st opper.

****

REAR PANEL

1. Loosen 7 screws

2. Remove 4 screws

3. Raise slightly REAR PANEL upward.

4. Pull out the REAR PANEL.

++++

,,,,

MIRROR

MIRROR STOPPER

HOOKS

BRACKET

PARTITION

Remove the REAR PANEL.

1. Pull out the PARTITION back ward.

REAR COVER

Remove the SPEAKER GRILLE.

Remove the FRONT BOARD.

Remove the CONTROL BOX.

Remove the SCREEN ASS’Y.

1. Remove 2 screws

2. Remove 2 screws

side

3. Slightly pull for backside to disengage of the REAR COVER from

hooks.

4. Take out the REAR PANEL.

attaching the REAR COVER.

----

attaching the REAR COVER from front

....

AV TERMINAL BOARD

Remove the REAR PANEL

1. Remove 5 screws

2. Pull out the power cord clamp from AV TERMINAL BOARD left

side.

3. Remove the AV TERMINAL BOARD.

////

PARTITION

REAR COVER

REAR PANE L

AV TERMINAL BOARD

No.51913

MAIN UNIT

Remove the SPEAKER GRILLE.

Remove the FRONT BOARD.

Remove the CONTROL BOX.

Remove the SCREEN ASS’Y.

Remove the REAR COVER.

1. Remove 4 screws

2. Pull out the MAIN UNIT rear side.

NOTE :

Except for confirmation of projection of images on the

screen and audio output through the speakers, the removed main unit is still workable in the same state as if it is still built in the TV set. Therefore, the main unit can be removed, if necessary, for board diagnosis, electric testing, etc. apart from c onfirmation of screen images and audio output.

When wire clamps are removed during work, use care to

restore them pr ecisely to their original positions. Performance can be affected if these are not returned to the original positions.

Because of the large size, at least two persons are

recommended for removal and reassemble.

When carrying the main unit, use care not to drop, shock

or shake it.

Do not stain or damage the lens of the projection unit.

Do not look through the projection unit.

from front side.

0000

HV-53PRO

MAIN UNIT

LINE FILTER BRACKET

CHECKING THE P.W. BOARD

When checking the MAIN PW B, POWER & DEF PWB, etc., raise the MAIN UNIT with the DIVIDER side down for the sake of convenience.

LINE FILTER P.W. BOARD

Remove the REAR PANEL.

Remove the AV TERMINAL BOARD.

1. Disconnect the connector

BOARD.

2. Remove 3 screws

3. Remove 2 screws

4. Remove the LINE FILTER P.W . BOARD.

attaching the LINE FILTER BRACKET.

1111

attaching LINE FILTER P.W . BOARD.

2222

W on t he LINE FILTER P .W .

MAIN CHASSIS

Remove the REAR PANEL.

Remove the AV TERMINAL BOARD.

Remove the LINE FILTER BRACKET.

1. Remove 2 screws

2. Pull out the MAIN CHASSIS for back side. :

NOTE

If necessary, remove the anode wires, connectors,

respectively.

both side of the MAIN CHASSIS.

3333

LINE FILTER P.W.BOARD

LINE FILTER BRACKET

No.51913

MAIN CHASSIS

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