JVC HV-29WH21 Schematic

52198200311

SERVICE MANUAL

COLOUR TELEVISION

HV-29WH21, HV-29WH21/A,

HV-29WH21/E, HV-29WH51/S,

RM-C1351

[HV-29WH21]

[HV-29VH21]

RM-C1353

[HV-29WH51]

RM-C1350

[HV-29WH71]

HV-29WH71

[HV-29WH21] [HV-29WH51] [HV-29WH71]

BASIC CHASSIS

[HV-29VH21]

TABLE OF CONTENTS

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

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

3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13

5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-32

No.52198

2003/11

SPECIFICATION

Contents

Items

Dimensions (W × H × D) Mass 44.5kg 43.6kg TV RF System B/G, I, D/K, K1, M Colour System PAL / SECAM / NTSC 3.58 / NTSC 4.43 Stereo System A2 (B/G) / NICAM (B/G, I, D/K) Teletext System Fastext (UK system)

Receiving Frequency

Intermediate Frequency

Colour Sub Carrier Frequency

Aerial Input Terminal 75Ω unbalanced, coaxial Power Input AC 110V~240V , 50/60Hz Power Consumption Avg.150W Picture Tube Visible size : 67.6cm (Diagonal) / 54.1cm × 40.6cm (H × V) High Voltage 31.5kV +1.0kV / -1.5kV (At zero beam current) Speaker 6.5cm × 13cm Oval type × 2 Audio Power Output 10W + 10W Video / Audio

Input

Component Video

Video / Audio Output

Headphone 3.5mm stereo mini jack × 1 Remote Control Unit RM-C1351

VHF Low

VHF High

UHF

CATV

VIF SIF

PAL

SECAM

NTSC

S-Video

[VIDEO-1]

Video

Audio(L/R)

[VIDEO-3]

Video

Audio(L/R)

HV-29VH21/A

81.2cm × 58.5cm × 52.1cm

WST(world standard teletext system)

46.25MHz ~168.25MHz

175.25MHz ~ 463.25MHz

471.25MHz ~ 863.25MHz Mid : X-Z+2, S1~S10 Super : S11~S20 Hyper : S21~S41

38.0MHz

32.5MHz(5.5MHz) / 32.0MHz(6.0MHz) / 3.15MHz(6.5MHz) / 33.5MHz (4.5MHz)

4.43MHz

4.40625MHz / 4.25MHz

3.58MHz / 4.43MHz

Mini-DIN 4 pin connector × 1 Y : 1V(p-p), Positive (Negative sync provided), 75Ω C : 0.286V(p-p) (burst signal), 75Ω 1V(p-p), negative sync, 75Ω, RCA pin jack × 4 500mV(rms) (-4dBs), High impedance, RCA pin jack × 8 RCA pin jack × 3 Y : 1V(p-p), 75Ω CB : 0.7V(p-p), 75Ω CR : 0.7V(p-p), 75Ω

1V(p-p) 75Ω, RCA pin jack × 1 500mV(rms) (-4dBs), Low impedance, RCA pin jack × 2

(AA/R06/UM-3 battery × 2)

HV-29WH21

HV-29WH21/E

81.2cm × 58.5cm × 51.8cm

RM-C1350 (AA/R06/UM-3 battery × 2)

HV-29WH71/G HV-29WH51/S

NON

RM-C1353 (AA/R06/UM-3 battery × 2)

Design & specifications are subject to change without notice.

1-2 (No.52198)

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 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 therefrom.

(3) Many electrical 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. 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 parts list of Service manual may cause shock, fire, or other hazards.

(4) 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 measure 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.

(5) If any repair has been made to the chassis, it is

recommended that the B1 setting should be checked or adjusted (See B1 POWER SUPPLY check).

(6) The high voltage appli ed to the picture tube must confo rm

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.

(7) Do not check high voltage by d rawing 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 gr ound frame and connecting the other end of the lead through a 10kΩ 2W resistor to the anode button.

(8) When service is required, obse rve 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.

(9) Isolation Check (Safety for 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 Chec k

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 ac ross 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

GOOD EARTH GROUND

ON EACH EXPOSED METAL PART

(No.52198)1-3

SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

2.1 FEATURES

• New chassis design enable use of an interactive on-screen control.

• The TELETEXT SYSTEM has a built-in FASTEXT (UK system), and WST (world standard teletext system). [Only HV-29WH21, HV-29WH21/E, HV-29VH21/A, HV-29WH71/G]

• Pure FLAT CRT reproduce fine textured.

• Digi Pure pro : Auto digi pure with motion picture compensation.

• Because this TV unit corresponds to multiplex broadcast, users can enjoy music programs and sporting events with live realism. In addition, BILINGUAL programs can be heard in their original language.

2.2 MAIN DIFFERENCE LIST

Item HV-29WH21 HV-29VH21/A HV-29WH21/E HV-29WH51/S HV-29WH71/G

TELETEXT YES YES YES NO YES PIP NO NO NO YES YES COLOUR AUTO NO NO NO YES NO BLUE BACK MUTE NO NO NO YES NO MAIN PWB ASSY SML-1501A-H2 SML-1511A-H2 SML-1510A-H2 SML-1508A-H2 SML-1503A-H2 POWER &DEF PWB ASSY SML-2501A-H2 SML-2501A-H2 SML-2503A-H2 SML-2501A-H2 SML-2501A-H2 MICOM /100Hz PWB ASSY SML0Z502A-H2 SML0Z502A-H2 SML0Z502A-H2 SML0Z501A-H2 SML0Z501A-H2 AV SW PWB ASSY SML0J501A-H2 SML0J501A-H2 SML0J501A-H2 SML0J503A-H2 SML0J503A-H2 PICTURE TUBE A68QCU770XV1K A68QCU770XV1S A68QCU770XV1K A68QCU770XV1K A68QCU770XV1K FRONT CABI ASSY GG10189-010A-H GG10239-003A-H GG10189-010A-H GG10189-010A-H GG10189-010A-H REAR COVER GG10192-005B-H GG10192-006B-H GG10192-005B-H GG10192-005B-H GG10192-005B-H REMOTE CONTROL UNIT RM-C1351-1H RM-C1351-1H RM-C1351-1H RM-C1353-1H RM-C1350-2H

1-4 (No.52198)

2.3 FUNCTIONS  FRONT TERMINAL & CONTROL

1 2 3 4 5 6 7 8 9

HEADPHONE jack

VIDEO-4 terminal (S-VIDEO / VIDEO / L/MONO / R)

MENU/OK button

CHANNEL -/+ (MENU UP/DOWN) button

VOLUME -/+ (MENU LEFT/RIGHT) button

 REAR TERMINAL

OVER

IN (VIDEO-4)

L/MONO

CHANNEL

VOLUME

TV/VIDEO EXIT

TV / VIDEO / EXIT button

Remote Control sensor

POWER lamp

POWER button

POWER

1 2 3 4

VIDEO-1 (INPUT) terminal

AUDIO

L/MONO

AUDIO

L/MONO

AUDIO

VIDEO

OVER

Y/VIDEOC

VIDEO-1

VIDEO-2

VIDEO-3/

COMPONENT

OUTPUT

(S, VIDEO, L/MONO ,R)

VIDEO-2 (INPUT) terminal ( VIDEO, L/MONO ,R)

VIDEO-3 (INPUT) terminal (Y/VIDEO, C

OUTPUT (VIDEO, AUDIO L/R) terminal

B,CR , L/MONO, R) /COMPONENT

(VIDEO, L, R)

AERIAL socket

(No.52198)1-5

 REMOTE CONTROL UNIT

RM-C1351

[HV-29WH21,HV-29WH21/E,HV-29VH21/A]

1616

RM-C1353

[HV-29WH51/S]

RM-C1350

[HV-29WH71/G]

POWER key

ZOOM key

CINEMA SURROUND key

MUTING key

COLOUR SYSTEM key

SOUND SYSTEM key

DISPLAY key

MENU (/&/) keys

MENU / OK key

TV/TEXT key

STEREO / key :Stereo / :Mono :Bilingual (sub ) :Bilingual (sub )

TV / VIDEO key

PICTURE MODE key

RETURN + key

CHANNEL keys

-/-- key

VOLUME +/- keys

CHANNEL +/- keys

FAVORITE CH keys

POWER key

ZOOM key

CINEMA SURROUND key

PIP key

MUTING key

COLOUR SYSTEM key

SOUND SYSTEM key

DISPLAY key

MENU (/&/) keys

MENU / OK key

STEREO / key :Stereo / :Mono :Bilingual (sub ) :Bilingual (sub )

TV / VIDEO key

PICTURE MODE key

SUB-P +/- key

RETURN + key

CHANNEL keys

-/-- key

VOLUME +/- keys

CHANNEL +/- keys

FAVORITE CH keys

POWER key

ZOOM key

CINEMA SURROUND key

PIP key

MUTING key

COLOUR SYSTEM key

SOUND SYSTEM key

DISPLAY key

MENU (/&/) keys

MENU / OK key

TV/TEXT key

STEREO / key :Stereo / :Mono :Bilingual (sub ) :Bilingual (sub )

TV / VIDEO key

PICTURE MODE key

SUB-P +/- key

RETURN + key

CHANNEL keys

-/-- key

VOLUME +/- keys

CHANNEL +/- keys

FAVORITE CH keys

1-6 (No.52198)

SECTION 3

DISASSEMBLY

3.1 DISASSEMBLY PROCEDURE

3.1.1 REMOVING THE REAR COVER

(1) Unplug the power cord. (2) Remove the 16 screws [A] as shown in the Fig. 1. (3) Withdraw the REAR COVER toward you.

3.1.2 REMOVING THE AV TERMINAL BOARD

• Remove the REAR COVER. (1) Remove the 5 screws [B] as shown in the Fig. 1. (2) Withdraw the AV TERMINAL BOARD toward you.

3.1.3 REMOVING THE CHASSIS

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

remove the 2 claws under the both sides of the CHASSIS from the front cabinet.

(2) Withdraw the CHASSIS backward.

(If necessary, take off the wire clamp, connectors etc.)

3.1.4 REMOVING THE SPEAKER

• Remove the REAR COVER. (1) Remove the 2 screws [C], and remove the SP HOLDER as

shown in Fig. 1.

NOTE :

When removing the screws [C] of the SP HOLDER, remove the lower side screw first, and then remove the upper one.

(2) Remove the claw [D] push the SP HOL DER as shown in

Fig. 2.

(3) Follow the same steps when removing the other

SPEAKER.

3.1.5 CHECKING THE PW BOARD

• To check the back side of the PW Board. (1) Pull out the CHASSIS. (Refer to REMOVING THE

CHASSIS).

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

the back side of the PW Board.

3.1.6 CAUTION

• When erecting the CHASSIS, be careful so that there will be no contacting with other PW Board.

• Before turning on power, make sure that the wire connector is properly connected.

• When conducting a check with power supplied, be sure to confirm that the CRT EARTH WIRE (BRAIDED ASS'Y) is connected to the CRT SOCKET PW board.

3.1.7 WIRE CLAMPING AND CABLE TYING

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

er. Should it be inadvertently removed, be sue to tie the wires with a new cable tie.

SP HOLDER

SPEAKER

CLAW

SP HOLDER SP HOLDER

SPEAKER

Fig.2

[SIDE VIEW]

(No.52198)1-7

FRONT CABINET

See Fig. 2

(X2)

SP HOLDER

SPEAKER

CRT SOCKET PWB

SP HOLDER

SPEAKER

FRONT CONTROL PWB (1/2)

(X2)

CONTROL BASE

FRONT CONTROL PWB (2/2)

CLAW

MAIN PWB

MICOM / 100Hz PWB

CLAW

FBT

POWER & DEF. PWB

AV SW PWB

(X5)

POWER CORD

1-8 (No.52198)

Fig.1

REAR COVER

(X16)

3.2 MEMORY IC REPLACEMENT

3.2.1 MEMORY IC

This TV use memory IC. In the memory IC, there are memorized data for correctly operating the video and deflection circuits. When replacing memory IC, be sure to use IC written with the initial values of data.

3.2.2 PROCEDURE FOR REPLACING MEMORY IC

(1) Power off

Switch the power off and disconnect the power cord from the wall outlet.

(2) Replace the memory IC

Be sure to use a memory IC written with the initial data values.

(3) Power on

Connect the power plug into the wall outlet and switch the power on.

(4) Check and setting of SYSTEM CONSTANT SET

• It must not adjust without signal. a) Press the [DISPLAY] key and the [PICTURE MODE]

key of the REMOTE CONTROL UNIT simultaneously.

b) The SERVICE MENU screen of Fig. 1 will be

displayed.

c) While the SERVICE MENU is displayed, press the

[DISPLAY] key and [PICTURE MODE] key simultaneously, and the SYSTEM CONSTANT SET screen of Fig. 2 will be displayed.

d) Check the setting values of the SYSTEM

CONSTANT SETTING. If the value is different, select the setting item with the [MENU /] key, and set the correct value with the [MENU /] key.

e) Press the [OK] key to memorize the settin g value.

f) Press the [DISPLAY] key, and return to the normal

screen.

(5) Receive channels setting

Refer to the OPERATING INSTRUCTIONS and set the receive channels (channels preset) as described.

(6) User settings

Check the user setting values and if setting value is different, set the correct value. For setting, refer to the OPERATING INSTRUCTIONS.

(7) Setting of SERVICE MENU

Verify the setting items of the SERVICE MENU, and reset where necessary. For setting, refer to the SERVICE ADJUSTMENTS.

1. IF

3. AUDIO

5. VSM PRESET

7.PIP

9. SHIPPING(OFF)

1-9 : SELECT DISP : EXIT

1. TEXT

DISPLAY key

PICTURE MODE key

SERVICE MENU

2. V/C

4. DEF

6. STATUS

8. SURROUND

0. BUS FREE

Fig.1

SYSTEM CONTANT SET

2. PIP

3. COLOUR AUTO

4. BLUE BACK MUTE

DISP : EXIT-/+ : STORE

Fig.2

SERVICE MENU

ZOOM (ASPECT) key

MENU key (/ & /)

OK key

Numbers keys

Fig.3

[RM-C1350]

(No.52198)1-9

3.2.3 FACTORY SETTING VALUES Setting item Setting value Setting item Setting value

MAIN POWER SW OFF SUB POWER SW ON CHANNEL PR1 DISPLAY INDICATED PRESET CHANNEL

Setting item Setting value Setting item Setting value

PICTURE SETTING SOUND

PICTURE MODE BRIGHT BASS Center CONTRAST Center TREBLE Center BRIGHT Center BALANCE Center SHARP Center CINEMA SURROUND OFF COLOUR Center AI VOLUME ON WHITE BALANCE MID INSTALL AI ECO SENSOR DISPLAY OFF LANGUAGE ENGLISH

PICTURE FEATURES EDIT PRESET CHANNEL ONLY DIGITAL VNR AUTO OTHER : NON (SPACE) Digi Pure AUTO AUTO PROGRAM GROUP-1 : HV-29WH21 PULL DOWN AUTO HV-29VH21/A COLOUR SYSTEM TV : Depends on PR/CH

ZOOM REGULAR GROUP-4 : HV-29WH51/S PICTURE TILT Center HV-29WH71/G FAVORITE CH SETTING PRO1 : RED

VIDEO SETTING VIDEO STATAS : VIDEO1

See OPERATING INSTRUCTIONS.

MENU SETTING

EXT : AUTO

PRO2 : GREEN PRO3 : YELLOW PRO4 : BLUE PICTIRE MODE : BRIGHT DIGITAL VNR : AUTO WHITE BALANCE : MID Digi Pure : AUTO PICTURE EFFRCT : OFF

PICTURE MODE : BRIGHT DIGITAL VNR: AUTO WHITE BALANCE : MID Digi Pure : AUTO PICTURE EFFECT : OFF

VOLUME 10

TELETEXT LANGUAGE GROUP-2 : Unused

GROUP-3 : HV-29WH21/E

GROUP-5 : Unused

FEATURES

SLEEP TIMER OFF BLUE BACK ON CHILD LOCK OFF (for all the channels) CHANNEL GUARD ALL CH : OFF AUTO SHUT OFF OFF VIDEO-3 SETTING COMPONENT PIP / TWIN OFF Only SUB INPUT VIDEO1

HV-29WH51/S HV-29WH71/G

1-10 (No.52198)

3.2.4 SYSTEM CONSTANT SETTING Setting item HV-29WH21 / HV-29VH21 HV-29WH51 HV-29WH71

1. TEXT YES NO YES

2. PIP NO YES YES

3. COLOUR AUTO NO YES NO

4. BLUE BACK MUTE NO YES NO

3.2.5 SERVICE MENU SETTING ITEMS Setting item Setting value Setting item Setting value

1. IF 1. VCO 5. VSM PRESET BRIGHT STANDARD SOFT

2. V / C 1. RGB BLK

2. CUTOFF R

3. CUTOFF G

4. CUTOFF B

5. WDR R

6. WDR G

7. WDR B

8. BRIGHT

9. CONTRAST

10. COLOUR

11. HUE

12. SHARP

13. SC ADJ.

14. TOP BLK

15. BTM BLK

16. YUV BRIGHT

17. YUV CONT

18. YUV COLU

19. YUV COLV

20. YUV YDEL

21. YUV UVDEL

22. YCDELM

3. AUDIO 1. ERR LIMIT

2. A2 ID THR

3. SYSTEM

4. SUB BASS

5. SUB TREBLE

4. DEF 1. V-SHIFT

2. V-SIZE

3. H-CENT

4. H-SIZE

5. TRAPEZ

6. EW-PIN

7. COR-UP

8. COR-LO

9. COR-UP-S

10. COR-LO-S

11. HUE

12. BOW

13. V-S.CR

14. V-LIN

6. STATUS

(Do not adjust)

7. PIP [HV-29WH51/S, HV-29WH71/G only]

8. SURROUND 1. CH CONFIG

COOL WARM NORMAL

1. CONT

2. BRIGHT

3. SHARP

4. COLOUR

5. TINT

6. WDR R

7. WDR G

8. WDR B (Do not adjust)

1. SOFT

1. HUE

2. SCADJ

3. PIP HOR POS

4. PIP VER POS

5. YCDELS

2. MATRIX

3. REPRODUCT

4. CENTER MODE

5. SPATIAL EFF

6. VIRTUAL EFF

7. BASS EFFECT

8. HARM

9. HPF

10. LPF

11. AMP LIMIT

12. LEVEL ADJ

13. SWC

14. SW HPF

15. VOLUME

16. HYPER EFF

17. EFFECT MOD

18. HP GAIN

(No.52198)1-11

3.3 REPLACEMENT OF CHIP COMPONENT

3.3.1 CAUTIONS

(1) Avoid heating for more than 3 seconds. (2) Do not rub the electrodes and the resist parts of the pattern. (3) When removing a chip part, melt the solder adequately. (4) Do not reuse a chip part after removing it.

3.3.2 SOLDERING IRON

(1) Use a high insulation soldering iron with a thin pointed end of it. (2) A 30w soldering iron is recommended for ea sily removing parts.

3.3.3 REPLACEMENT STEPS

1. How to remove Chip parts

2. How to install Chip parts

[Resistors, capacitors, etc.]

(1) As shown in the figure, push the part with tweezers and

alternately melt the solder at each end.

(2) Shift with the tweezers and remove the chip part.

[Transistors, diodes, variable resistors, etc.]

(1) Apply extra solder to each lead.

SOLDER

[Resistors, capacitors, etc.]

(1) Apply solder to the pattern as indicated in the figure.

(2) Grasp the chip part with tweezers and place it on the

solder. Then heat and melt the solder at both ends of the chip part.

[Transistors, diodes, variable resistors, etc.]

(1) Apply solder to the pattern as indicated in the figure. (2) Grasp the chip part with tweezers and place it on the

solder.

(3) First solder lead A as indicated in the figure.

(2) As shown in the figure, push the part with tweezers and

alternately melt the solder at each lead. Shift and remove the chip part.

NOTE :

After removing the part, remove remaining solder from the pattern.

1-12 (No.52198)

(4) Then solder leads B and C.

SECTION 4

ADJUSTMENT

4.1 ADJUSTMENT PREPARATION

(1) There are 2 ways of adjusting this TV : One is with the REMOTE CONTROL UNIT an d the other is the conventional method

using adjustment parts and components.

(2) The adjustment using the REMOTE CONTROL UNIT is made on the basis of the initial setting values. The setting values which

adjust the screen to the optimum condition can be different from the initial setting values. (3) Make sure that connection is correctly made AC to AC power source. (4) Turn on the power of the TV and measuring instruments for warning up for at least 30 minutes before starting adjustme nts. (5) If the receive or input signal is not specified, use the most appropriate signal for adjustment. (6) Never touch the parts (such as variable resistors, transformers and condensers) not shown in the adjustment items of this service

adjustment. (7) Preparation for ad justment.

Unless otherwise specified in the adjustment items, preset the following functions with the REMOTE CONTROL UNIT.

Item Preset value

PICTURE MODE (VSM) STANDARD WHITE BALANCE MID DIGITAL VNR AUTO Digi Pure AUTO BASS / TREBLE / BALANCE Center CINEMA SURROUND OFF ZOOM REGULAR SLEEP TIMER OFF

4.2 MEASURING INSTRUMENT AND FIXTURES

(1) DC voltmeter (or digital voltmeter) (2) HV voltmeter (3) Oscilloscope (4) Signal generator (Pattern generator : PAL / SECAM / NTSC) (5) Remote control unit

4.3 ADJUSTMENT ITEMS  CHECK ITEMS

• B1 POWER SUPPLY check

• HIGH VOLTAGE check

 TUNER / IF CURCUIT

• IF VCO check

 FOCUS

• FOCUS adjustment

 VSM PRESET SETTING

• VSM PRESET

 VIDEO CIRCUIT

• WHITE BALANCE adjustment

• SUB BRIGHT adjustment

• SUB CONTRAST adjustment

• SUB COLOUR-1 adjustment

• SUB COLOUR-2 adjustment

• SUB HUE-1 adjustment

• SUB HUE-2 adjustment

• COLOUR DECODER VCO adjustment

 DEFLECTION CIRCUIT

• V. POSITION adjustment

• V. SIZE adjustment

• H. POSITION adjustment

• H. SIZE adjustment

• SIDE-PIN adjustment

• TRAPEZIUM adjustment

• UPPER / LOWER CORNER PIN adjustment

• PARALLEL(TILT) adjustment

• BOW adjustment

• V. S-SHAPE CORRECTION & LINEARITY adjustment

 AUDIO CIRCUIT

(No.52198)1-13

4.4 ADJUSTMENT LOCATION

FRONT CONTROL PWB(1/2) FRONT CONTROL PWB(2/2)

FRONT

POWER CORD

POWER

F901

C901

LF901

MAIN PWB

IC101

CN00B

TV/VIDEO EXIT

VOL +

VOL -

MENU / OK

CH -

CH +

POWER &DEF PWB

AUDIO

R L/MONO

R4 L4 V4

IN (VIDEO-4)

VIDEO

S-VIDEO

S IN

HEAD

POHONE

SP-R

SP-L

FRONT

TUNER

MICOM / 100Hz PWB

AV SW PWB

CN001

ANT- IN

CN003

CN004

CN005

CRT

BRAIDED WIRE

DEG

DEG COIL

1pin:B1(TP-91)

2pin:NC 3pin:X-RAY 4pin:X-RAY 5pin:GND( )

MEMORY IC

IC701

IC001

MICON

CN002

CRT SOCKET PWB

CN00R

TP-E

TP-47B

CN00G

TP-Y

CRT

FRONT TOP

YHC

(VR2)

XV COIL

(VR1)

PC MAGNET

(SOLDER SIDE)

1-14 (No.52198)

FOCUS 2 VR FOCUS 1 VR

SCREEN VR

4.5 BASIC OPERATION OF SERVICE MENU

4.5.1 TOOL OF SERVICE MENU OPERATION

Operate the SERVICE MENU with the REMOTE CONTROL UNIT.

4.5.2 SERVICE MENU ITEMS

With the SERVICE MENU, various adjustments can be made, and they are broadly classified in the following items of settings.

1.IF This mode adjusts the setting values of the IF circuit.

2.V/C This mode adjusts the setting values of the VIDEO circuit.

3.AUDIO This mode adjusts the setting values of the multiplicity AUDIO circuit.

4.DEF This mode adjusts the setting values of the DEFLECTION circuit for each aspect mode given below.

5.VSM PRESET This mode adjusts the initial setting values of BRIGHT, STANDARD and SOFT. (VSM : Video Status Memory)

6.STATUS It is no requirement to adjustment. [Do not adjust]

7.PIP This mode adjusts the setting values of the PIP circuit. [HV-29WH51/S HV-29WH71/G only]

8.SURROUND This mode adjusts the setting values of the SURROUND circuit.

9.SHIPPING (OFF) This mode adjusts the setting values of the channel presettings. If you turn the SHIPPING position set ON. This setting becomes channel presetting automatically. Also you turn the TV power off, this setting become OFF position automatically.

0.BUS FREE It is not requirement to adjustment.

4.5.3 BASIC OPERATION OF SERVICE MENU

1. HOW TO ENTER THE SERVICE MENU

Press the [PICTURE MODE] key and the [DISPLAY] key of the REMOTE CONTROL UNIT simultaneously, and the SERVICE MENU screen of Fig. 1 will be displayed.

2. SELECTION OF SUB MENU SCREEN

Press one of [1] ~ [0] keys of the REMOTE CONTROL UNIT and select the SERVICE MENU SCREEN (See Fig. 3), form

1. IF

3. AUDIO

5. VSM PRESET

7.PIP

9. SHIPPING(OFF)

1-9 : SELECT DISP : EXIT

SERVICE MENU

2. V/C

4. DEF

6. STATUS

8. SURROUND

0. BUS FREE

the SERVICE MENU.

Fig.1

1. IF

2. V/C

3. AUDIO

4. DEF

SERVICE MENU

5. VSM PRESET

6. STATUS [Do not adjust]

7. PIP [HV-29WH51/S, HV-29WH71/G only]

8. SURROUND

9. SHIPPING(OFF)

0. BUS FREE

DISPLAY key

ZOOM (ASPECT) key

MENU key (/ & /)

OK key

PICTURE MODE key

Numbers keys

[RM-C1350]

Fig.2

(No.52198)1-15

3. SETTING METHOD  1.IF

[1. VCO] : It must not adjust without signal

(1) [1] key

Select 1.IF.

(2) [1] key

Select 1.VCO(CW). Check the arrow position between the ABOVE REF. and BELOW REF.

(3) [DISPLAY] key

Return to the SERVICE MENU screen.

 2.V/C, 3.AUDIO, 4.DEF, 5.VSM PRESET, 7.PIP AND 8.SURROUND.

(1) [2], [3], [4], [5], [7], [8] key

Select one from 2.V/C, 3.AUDIO, 4.DEF, 5.VSM PRESET, 7.PIP, 8.SURROUND.

(2) [MENU /] key

Select setting items.

(3) [MENU /] key

Set (adjust) the setting values of the setting items.

(4) MENU [OK] key

Memorize the setting value. (Before storing the setting values in memory, do not press the CH, TV, POWER ON / OFF key. if you do, the values will not be stored in memory.)

(5) [DISPLAY] key

Return to the SERVICE MENU screen.

 6.STATUS, 9. SHIPPING(OFF) AND 0. BUS FREE.

It is not requirement to adjustment.

4. RELEASE OF SERVICE MENU

After completing the setting, return to the SERVICE MENU, then again press the [DISPLAY] key.

1-16 (No.52198)

4.5.4 SERVICE MENU FLOW CHART

SERVICE MENU

1. IF

3. AUDIO

5. VSM PRESET

7.PIP

9. SHIPPING(OFF)

1-9 : SELECT DISP : EXIT

2. V/C

4. DEF

6. STATUS

8. SURROUND

0. BUS FREE

COLOUR TEMP

COOL

WARM

NORMAL

1. CONT

2. BRIGHT

3. SHARP

4. COLOUR

5. TINT

6. WDR R

7. WDR G

8. WDR B

1. HUE

2. SC ADJ

3. PIP HOR POS

4. PIP VER POS

5. YCDELS

1. CH CONFIG

2. MATRIX

3. REPRODUCT

4. CENTER MODE

5. SPATIAL EFF

6. VIRTUAL EFF

7. BASS EFFECT

8. HARM

9. HPF

10. LPF

11. AMP LIMIT

12. LEVEL ADJ

13. SWC

14. SW HPF

15. VOLUME

16. HYPER EFF

17. EFFECT MOD

18. HP GAIN

PICTURE MODE

BRIGHT

STANDARD

SOFT

5. VSM PRESET

VSM PRESET STD

1. CONT

DISP : EXIT-/+ : STORE

6. STATUS [Do not adjust]

STATUS

1. SOFT

[HV-29WH51/S HV-29WH71/G only]

PIP

1. HUE

DISP : EXIT-/+ : STORE

7. PIP

DISP : EXIT-/+ : STORE

8. SURROUND

SURROUND SOUND SYSTEM

1. CH CONFIG

DISP : EXIT-/+ : STORE

Fig.3

1. IF (CW)

IF SERVICE MENU

1. VCO

DISP : EXIT1-2 : SELECT

VCO(CW)

TOO HIGH ABOVE REF JUST REF BELOW REF TOO LOW

DISP : EXIT

MHz

2. V/C

V/C PAL

1. RGB_BLK

DISP : EXIT-/+ : STORE

3. AUDIO [Do not adjust]

AUDIO

1. ERR LIMIT

EEROR_RATE=

DISP : EXIT-/+ : STORE

4. DEF

DEF REGULAR Hz

1. V-SHIFT

( )

DISP : EXIT-/+ : STORE

1. RGB BLK

2. CUTOFF R

3. CUTOFF G

4. CUTOFF B

5. WDR R

6. WDR G

7. WDR B

8. BRIGHT

9. CONTRAST

10. COLOUR

11. HUE

1. ERR LIMIT

2. A2 ID THR

3. SYSTEM

4. SUB BASS

5. SUB TREBLE

1. V-SHIFT

2. V-SIZE

3. H-CENT

4. H-SIZE

5. TRAPEZ

6. EW-PIN

7. COR-UP

12. SHARP

13. SC ADJ.

14. TOP BLK

15. BTM BLK

16. YUV BRIGHT

17. YUV CONT

18. YUV COLU

19. YUV COLV

20. YUV YDEL

21. YUV UVDEL

22. YCDELM

8. COR-LO

9. COR-UP-S

10. COR-LO-S

11. HUE

12. BOW

13. V-S.CR

14. V-LIN

(No.52198)1-17

4.6 INITIAL SETTING VALUE OF SERVICE MENU

(1) Adjustment of the SERVICE MENU is made on the basis of the initial setting value s:however, the new setting values which set

the screen in its optimum condition may differ from the initial setting value. (2) Do not change the initial setting values of the setting items not listed in "ADJUSTMENT PROCEDURE". (3) "---" is impossible to adjust.

[2. V/C]

Initial setting value

Setting item Variable range

1. RGB BLK --- --- --- --- --- --- --- ---

2. CUTOFF R 0000~0255 150 150 150 150 5 5 0

3. CUTOFF G 0000~0255 150 150 150 150 -8 -8 0

4. CUTOFF B 0000~0255 150 150 150 150 0 0 0

5. WDR R 0000~0255 150 150 150 150 0 0 0

6. WDR G 0000~0255 150 150 150 150 0 0 0

7. WDR B 0000~0255 150 150 150 150 0 0 0

8. BRIGHT RF -128~0127 -25 -25 -25 -25 --- --- --VIDEO +6 +6 +6 +6 +2 +2 -4

9. CONTRAST RF 0000~0063 50 50 50 50 --- --- --VIDEO +15 +15 +15 +15 --- --- ---

10. COLOUR RF 0000~0063 36 55 25 5 --- --- --VIDEO -7 -3 -3 0 -14 -5 +5

11. HUE RF -064~0063 --- --- 4 0 --- --- --VIDEO --- --- 0 0 --- --- ---

12. SHARP RF -015~0015 -3 -3 -3 -3 0 0 0 VIDEO 0 0 0 0 0 0 0

13. SC ADJ 0000~0063 18 18 18 18 --- --- ---

14. TOP BLK 0000~0255 35 35 46 46 35 46 46

15. BTM BLK -127~0511 -15 -15 -37 -37 -15 -37 -37

16. YUV BRIGHT -064~0063 --- --- --- --- -4 -4 -4

17. YUV CONT 0000~0063 --- --- --- --- 55 55 55

18. YUV COLU 0000~0063 --- --- --- --- 57 60 10

19. YUV COLV 0000~0063 --- --- --- --- 6 0 55 0

20. YUV YDEL 0000~0127 --- --- --- --- 50 50 35

21. YUV UVDEL 0000~0127 --- --- --- --- 49 49 35

22. TCDELM RF 0000~0127 2 0 0 0 --- --- --VIDEO 0 0 0 0 --- --- ---

RF / Composite Video / S-Video Component video

PAL SECAM NTSC 3.58 NTSC 4.43 50Hz-i 60Hz-i 60Hz-p

Initial setting value

Setting item Variable range

8. BRIGHT RF -128~0127 0 0 0 0 0 0 0 VIEDO 0 0 0 0 0 0 0

9. CONTRAST RF 0000~0063 -7 -7 -7 -7 --- --- --VIDEO -7 -7 -7 -7 --- --- ---

10. COLOUR RF 0000~0063 0 0 0 0 --- --- --VIDEO 0 0 0 0 0 0 0

1-18 (No.52198)

RF/ Composite Video / S-Video Component video

PAL SECAM NTSC 3.58 NTSC 4.43 50Hz-i 60Hz-i 60Hz-p

Compress (16:9)

[3. AUDIO]

Setting item Variable range Ini tial setting value

1. ERR LIMIT 0000~00FF 0010

2. A2 ID THR 0000~00FF 0019

3. SYSTEM B/G→I→D/K→M ---

4. SUB BASS -003~0003 0001

5. SUB TREBLE -003~0003 0001

[4. DEFLECTION]

Initial setting value

Setting item Variable range

1. V-SHIFT -32~0031+3-20000

2. V-SIZE -064~0063 -11 -1 0 0 -30 0

3. H-CENT -128 ~0127 -16 0 -2 0 0 0

4. H-SIZE -128~0127+7-10000

5. TRAPEZ -063~0064 -2 0 0 0 +1 0

6. EW-PIN -128~0127-17-10000

7. COR-UP -064~0064+1+160000

8. COR-LO -064~0064+1+60000

9. COR-UP-S -064 ~0064 +1 -8 0 0 0 +5

10. COR-LO-S -064~0064+100000

11. HUE -128~0127000000

12. BOW -128~0127000000

13. V-S.CR -064~0063+16+50000

14. V-LIN -064~0063-100000

REGULAR ZOOM 16:9

50Hz-i 60Hz-p 50Hz-i 60Hz-p 50Hz-i 60Hz-p

[5. VSM PRESET] [Do not adjust : All fixed]

Setting item Variable range

1. CONT -16~16 16 -2 0 --- --- ---

2. BRIGHT -16~16 -2 -2 0 --- --- ---

3. SHARP -16~16 0 -10 0 --- --- ---

4. COLOUR -16~16 0 -2 0 --- --- ---

5. TINT -16~16 0 0 0 --- --- ---

6. WDR R -16~16 --- --- --- -12 22 0

7. WDR G -16~16 --- --- --- -11 2 0

8. WDR B -16~16 --- --- --- 0 0 0

BRIGHT SOFT STANDARD COOL WARM NORMAL

Initial setting value

(No.52198)1-19

[7. PIP] (HV-29WH51/S, HV-29WH71/G only)

Initial setting value

Setting item Variable range

1. HUE RF -128~0126 --- --- 0 -1 --- --- --VIDEO --- --- -1 -1 --- --- ---

2. SC ADJ 0000~0063 17 17 17 17 17 17 17

Setting item

(Position display)

3. PIP HOR POS 0000~2047 222 585 217 585

4. PIP VER POS 0000~1023 47 198 32 159

Setting item Variable range

5. YCDELS RF -016~0015 0 0 0 0 --- --- --VIDEO 0 0 0 0 --- --- ---

Variable range

RF / Composite Video / S-Video Component video

PAL SECAM NTSC 3.58 NTSC 4.43 50Hz-i 60Hz-i 60Hz-p

Initial setting value

PAL / SECAM / Component 50Hz-i

PIP position PIP position

LeftRightLeftRight

Initial setting value

Regular

RF / Composite Video / S-Video Component video

PAL SECAM NTSC 3.58 NTSC 4.43 50Hz-i 60Hz-i 60Hz-p

NTSC3.58 / NTSC4.43 /

Component 60Hz-i / 60Hz-p

[8. SURROND]

Setting item Variable range

1. CH CONFIG 0000~0001 1 1

2. MATRIX 0000~0127 16 16

3. REPRODUCT 0000~0015 6 6

4. CENTER MODE 0000~0015 3 3

5. SPATIAL EFF 0000~0127 40 50

6. VIRTUAL EFF 0000~0127 35 47

7. BASS EFFECT 0000~0127 46 52

8. HARM 0000~0127 0 0

9. HPF 0002~0030 8 8

10. LPF 0005~0030 18 15

11. AMP LIMIT -032~0000 -10 -15

12. LEVEL ADJ -128~0012 0 0

13. SWC 0005~0040 28 28

14. SW HPF 0000~0002 2 2

15. VOLUME 0000~0003 3 3

16. HYPER EFF 0000~0127 63 63

17. EFFECT MOD 0000~0002 0 0

18. HP GAIN 0000~0008 8 8

Initial setting value

LOW HIGH

1-20 (No.52198)

4.7 ADJUSTMENT PROCEDURE

4.7.1 CHECK ITEM

Item

B1 POWER SUPPLY check

Measuring

instrument

DC voltmeter Remote

control unit

X connector TP-91(B1) TP-E( ) [POWER DEF PWB]

HIGH VOLTAGE

HV voltmeter

CRT anode

check

Remote

Chassis GND

control unit

Test point Adjustment part Description

[2.V/C]

1.RGB BLK

(1) Receive a any broadcast. (2) Press the [ZOOM] key and select the FULL mode. (3) Select 2.V/C. (4) Select < 1.RGB BLK >. (5) Press the [MENU] key to find the cut off screen

(Black screen). (6) Connect a DC voltmeter to TP-91(B1) and TP-E( ). (7) Make sure that the voltage is DC139.9 ±2.0V. (8) Press the [MENU] key to return to service menu.

[2.V/C]

1.RGB BLK

(1) Receive a any broadcast. (2) Press the [ZOOM] key and select the FULL mode. (3) Select 2.V/C. (4) Select < 1. RGB BLK >. (5) Press the [MENU] key to find the cut off screen

(Black screen). (6) Connect a HV voltmeter to CRT anode and chassis

GND. (7) Make sure that the voltage is DC31.5kV(+1kV,-

1.5kV).

(8) Press the [MENU] key to return to service menu.

NOTE:

• Remove the probe before removing the earth clip.

4.7.2 TUNER / IF CIRCUIT

Item

IF VCO check

Measuring

instrument

Remote control unit

1. VCO

TOO HIGH ABOVE REF JUST REF BELOW REF TOO LOW

Test point Adjustment part Description

IF SERVICE MENU

DISP : EXIT1-2 : SELECT

VCO(CW) , MHz

DISP : EXIT

[1.IF]

1.VCO

• Under normal conditions, no adjustment is required.

• Confirmation adjustment. (1) Select 1.IF. (2) Select < 1.VCO > (3) Receive any broadcast. (4) Check the arrow (←) position between the ABOVE

REF. and BELOW REF.

(5) Press the [OK] key and receiver any broadcast with

PIP button.

(No.52198)1-21

4.7.3 FOCUS

Item

Measuring

instrument

FOCUS Signal

generator

HVT

FOCUS 2 VR FOCUS 1 VR SCREEN VR

Test point Adjustment part Description

FOCUS1 VR FOCUS2 VR [In HVT]

(1) Receive a cross-hatch signal. (2) Press the [ZOOM] key and select the REGULAR

mode.

(3) By turning the FOCUS 2 VR, adjust the to make the

vertical lines as fine and sharp as possible.

FOCUS 2 VRFOCUS 1 VR

123453

(4) By turning the FOC US 2 VR, adjust the picture so

that the 5th vertical line from left side of the crosshatch picture becomes thinnest.

(5) By turning the FOCUS 1 VR, adjust the 3rd

horizontal line from the upper side may become uniform at the line center and its periphery.

(6) Carry out adjustment by repeating the steps 3, 4 and

5 about.

(7) Make sure that the screen is darkened, the lines

remain in good focus.

4.7.4 VSM PRESET SETTING

Item

Measuring

instrument

VSM PRESET Remote

control unit

VSM preset

mode

BRIGHT SOFT STANDARD

VSM preset

mode

COOL WARM NORMAL

2.BRIGHT 3.SHARP

Inital setting value

COLOUR TEMP

7.WDR G

Test point Adjustment part Description

[5.VSM PRESET] (BRIGHT/SOFT/ STANDARD)

1.CONT.

2.BRIGHT

3.SHARP

4.COLOUR

5.TINT (COOL/WARM/ NORMAL)

6.WDR R

7.WDR G

8.WDR B

(1) Select 5.VSM PRESET. (2) Select STD(Standard) with the [PICTURE MODE]

key of the remote control unit.

(3) Adjust the [MENU /] key to bring the set values

of < 1.CONT >~< 5.TINT > to the values shown in

the table. (4) Press the [OK] key to memorize the set values. (5) Respectively select the VSM PRESET mode for

BRIGHT and REGULAR, and make similar

adjustment as in 3 above. (6) Press the [OK] key to memorize the set values. (7) Select COOL of COLOUR TEMP with the [OK] key. (8) Select 5.VSM PRESET. (9) Adjust the [MENU /] key to bring the set values

Inital setting value

PICTURE MODE

4.COLOUR 5.TINT1.CONT.

-2 0 5 016

-2 -10 -2 0-2 00000

of < 6.WDR R > ~ < 8.WDR B > to the values shown

in the table. (10) Press the [OK] key to memorize the set values. (11) Respectively select NORMAL or WARM of

PICTURE MODE, and make similar adjustment as in

9 above. (12) Press the [OK] key to memorize the set values.

NOTE:

8.WDR B6.WDR R

-11 0-12 2022 000

• Refer to OPERATING INSTRUCTIONS for the PICTURE MODE.

1-22 (No.52198)

4.7.5 VIDEO CIRCUIT

The setting (adjustment) using the REMOTE CONTROL UNIT is made on the basis of the initial setting values. The setting values which adjust the screen to the optimum condition can be different from the initial setting values.

Item

WHITE BALANCE

SUB BRIGHT Remote

SUB CONTRAST

SUB COLOUR-1 Remote

Measuring

instrument

Signal generator

Remote control unit

control unit

Remote control unit

control unit

Test point Adjustment part Description

[2.V/C]

2.CUTOFF R

3.CUTOFF G

4.CUTOFF B

5.WDR R

6.WDR G

7.WDR B (Do not move)

[2.V/C]

8.BRIGHT

[2.V/C]

9.CONTRAST

[2.V/C]

10.COLOUR (PAL/SECAM/NTSC)

• Set the PICTURE MODE to NORMAL. (1) Receive a black and white signal (colour off). (2) Select 2.V/C . (3) Select < 2.CUTOFF R >, < 3.CUTOFF G > and

< 4.CUTOFF B >.

(4) Adjust the screen until the black portion in the screen

becomes black.(Low light) (5) Select < 5.WDR R > and < 6.WDR G >. (6) Adjust the screen until the white portion in the screen

becomes white (High light).

NOTE:

• Do not adjust < 7.WDR B >. (7) Press the [OK] key to memorize the set values. (8) Change the contrast and brightness with the remote

control up & down from low-light to high-light and check that the tracking of the white balance is good.

(1) Receive any broadcast. (2) Select 2.V/C. (3) Select < 8.BRIGHT >. (4) Set the initial setting value of < 8.BRIGHT >. (5) If the brightness is not the best with the initial setting

value, make fine adjustment until you get the best brightness.

(6) Press the [OK] key to memorize the set values. (1) Receive any broadcast.

(2) Select 2.V/C. (3) Select < 9.CONTRAST >. (4) Set the initial setting value of < 9.CONTRAST >. (5) If the contrast is not the best wi th the initial setting

value, make fine adjustment until you get the best contrast.

(6) Press the [OK] key to memorize the set values.

[Method of adjustment without measuring instrument] PAL COLOUR :

(1) Receive PAL broadcast. (2) Select 2.V/C. (3) Select < 10.COLOUR >. (4) Set the initial setting value for PAL COLOUR. (5) If the colour is not the best with the initial set value,

make fine adjustment until you get the best colour.

(6) Press the [OK] key to memorize the set values.

SECAM COLOUR :

(1) Receive a SECAM broadcast. (2) Make fine adjustment of SECAM COLOUR in the

same manner as for above.

NTSC 3.58 COLOUR :

(1) Input a NTSC 3.58MHz COMPOSITE VIDEO

signal from the EXT terminal.

(2) Make similar fine adjustment of NTSC 3.58

OLOUR in the same manner as for above.

NTSC 4.43 COLOUR :

(1) Receive a NTSC 4.43MHz COMPOSITE VIDEO

signal from the EXT terminal.

(2) Make similar fine adjustment of 4.43 COLOUR in

the same manner as for above.

(No.52198)1-23

Item

SUB COLOUR-2 Signal

Measuring

instrument

generator Oscilloscope Remote

control unit

YGR

W C

Test point Adjustment part Description

TP-47B TP-E( ) [CRT SOCKET PWB]

[2.V/C]

10.COLOUR (PAL/SECAM/NTSC)

(-)

(A)

(+)

[Method of adjustment using measuring instru ment] PAL COLOUR :

(1) Receive a PAL full field colour bar signal (75%

white). (2) Select 2.V/C. (3) Select < 10.COLOUR >. (4) Set the initial setting value of PAL COLOUR. (5) Connect the oscilloscope between TP-47B and

TP-E. (6) Adjust PAL COLOUR and bring the value of (A) in

the illustration to +28V (voltage difference

between white (W) and Blue (B)). (7) Press the [OK] key to memorize the set values.

SECAM COLOUR :

(1) Receive a SECAM colour bar signal (75% white). (2) Select 2.V/C. (3) Select < 10.COLOUR >. (4) Set the initial setting value of SECAM COLOUR. (5) Adjust SECAM COLOUR and bring the value of

(A) of the illustration to +24V(W~B). (6) Press the [OK] key to memorize the set values.

NTSC 3.58 COLOUR :

(1) Input a NTSC 3.58MHz full field colour bar signa l

(75% white) from the EXT terminal. (2) Select 2.V/C. (3) Select < 10.COLOUR >. (4) Set the initial setting value of NTSC 3.58

COLOUR. (5) Adjust NTSC 3.58 COLOUR and bring the value

of (A) of the illustration to +12V(W~B). (6) Press the [OK] key to memorize the set values.

NTSC 4.43 COLOUR :

(1) Input a NTSC 4.43MHz full field colour bar signal

(75% white) from the EXT terminal. (2) Select 2.V/C. (3) Select < 10.COLOUR >. (4) Set the initial setting value of NTSC 4.43

COLOUR. (5) Adjust NTSC 4.43 COLOUR and bring the value

of (A) of the illustration to +12V(W~B). (6) Press the [OK] key to memorize the set values.

1-24 (No.52198)

Item

Measuring

instrument

SUB HUE-1 Remote

control unit

SUB HUE-2 Signal

generator Oscilloscope Remote

control unit

YGR

W C

Test point Adjustment part Description

[2.V/C]

11.HUE

[Method of adjustment without measuring instrument] NTSC 3.58 HUE :

(1) Input a NTSC 3.58MHz full field colour bar signal

(75% white) from the EXT terminal. (2) Select 2.V/C. (3) Select < 11.HUE >. (4) Set the initial setting value of NTSC 3.58 HUE. (5) If you cannot get the best HUE with the initial

setting value, make fine adjustment until you get

the best HUE. (6) Press the [OK] key to memorize the set values.

NTSC 4.43 HUE :

(1) When NTSC 3.58 is set, NTSC 4.43 will be

automatically set at the respective values.

TP-47B TP-E( ) [CRT SOCKET PWB]

[2.V/C]

11.HUE

[Method of adjustment using measuring instrument] NTSC 3.58 HUE :

(1) Input a NTSC 3.58MHz full field col our bar signal

(75% white) from the EXT terminal. (2) Select 2.V/C. (3) Select < 11.HUE >. (4) Set the initial setting value of NTSC 3.58 HUE. (5) Connect the oscilloscope between TP-47B and

TP-E. (6) Adjust NTSC 3.58 HUE to bring the value of (B) in

the illustration to -13V (voltage difference between

white (W) and magenta(M)). (7) Press the [OK] key to memorize the set values.

NTSC 4.43 HUE :

(-)

(B)

(+)

When NTSC 3.58 is set, NTSC 4.43 will be automatically set at the respective values.

COLOUR DECODER VCO

Signal generator

Remote control unit

V/C PAL

13. SC ADJ.

SC DEV FULL

DISP : EXIT-/+ : STORE

Get in 0000 0003

[2.V/C]

13.SC ADJ

Within 7~24 adjustment.

(1) Receive a PAL full field colour bar signal (75% white)

from EXT terminal. (2) Select 2.V/C. (3) Select < 13. SC ADJ >. (4) Adjust the value "SC DEV" indicated below of screen

get in 0000±0003. "SC ADJ." should be adjusted

within 7~24. (5) Press the [OK] key to memorize the set values.

Note :

When the [OK] key is pressed, VCO for colour decoder will be automatically set at the respective values.

(No.52198)1-25

4.7.6 DEFLECTION CIRCUIT

• There are 3 aspect modes ( 1. REGULAR, 2. ZOOM, 3. 16 : 9 ) of the adju stment . Depending upon th e kind of signals ( vertical frequency 50Hz-i / 60Hz-p ).

• When the 50Hz REGULAR mode has been established, the setting of other modes will be done automatically.

• However, if the picture quality has not been optimized, adjust each mode again, respectively. The adjustment using the

remote control unit is made on the basis of the initial setting values. The setting values which adjust the screen to the optimum condition can be different from the initial setting values.

NOTE :

- Adjust to make both 50Hz & 60Hz are the same V. size and fine straight line.

- When adjust again, adjust 50Hz mode first.

- When adjust in 60Hz mode, only 60Hz mode is adjust.

Item

V. POSITION Signal

Measuring

instrument

generator

Test point Adjustment part Description

[4.DEF]

1.V-SHIFT

(1) Receive a circle patte rn signal of vertical frequency

50Hz (PAL).

(2) Select 4.DEF. Remote control unit

(3) Select < 1.V-SHIFT >.

(4) Adjust to become A = B.

(5) Check the adjustment value above in other zoom

mode. If it is a wrong adjustment, re-adjust in ZOOM

mode and adjust by < 1.V-SHIFT >, < 14.V-LIN >.

(6) Press the [OK] key to memorize the set values.

V. SIZE [4.DEF]

2.V-SIZE

Screen

size

93%

H. POSITION Signal

generator

[4.DEF]

3.H-CENT.

Remote control unit

Picture size 100%

(1) Receive a PAL cross-hatch signal.

(2) Select < 2.V-SIZE >.

(3) Set the initial setting value of < 2.V-SIZE >.

(4) Adjust to make sure that the vertical screen size of

the picture size is in the bellow table. (5) Press the [OK] key to memorize the set values. (6) Input a NTSC VID EO signal (60Hz) from the EXT

terminal, and make sure that the vertical screen size

is in the below table. (7) Press the [OK] key to memorize the set values.

(1) Receive a PAL circle pattern signal. (2) Select < 3.H-CENT. >. (3) Set the initial setting value of < 3.H-CENT. >. (4) Adjust to became C=D. (5) Press the [OK] key to memorize the set values.

1-26 (No.52198)

+ 59 hidden pages

JVC HV-29WH21 Schematic

Specifications and Main Features

Frequently Asked Questions

User Manual