JVC HV-28P37SJE, HV-28P37SUE Service Manual

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Page 1

YA010200312

SERVICE MANUAL

COLOUR TELEVISION

HV-28P37SUE, HV-28P37SJE

BASIC CHASSIS

TABLE OF CONTENTS

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

2 SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

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

5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-42

No.YA010

2003/12

Page 2

SPECIFICATION

Item

Dimensions ( W × H × D ) 85.4cm × 50.8cm × 49.3cm Mass 38.0kg TV RF System CCIR (B/G, I, D/K, L/L') CCIR (B/G, I, D/K, L) Colour System PAL / SECAM / NTSC (Only EXT mode) Stereo System A2 (B/G, D/K), NICAM (B/G, I, D/K, L) Teletext System FLOF (Fastext)

TOP (German system) WST(World standard system)

Receiving Frequency VHF

Receiving channels E2-E12, E21-E69, S1-S41,

Intermediate Frequency VIF

Colour Sub Carrier Frequency

Power Input AC220V ~ AC240V, 50Hz Power Consumption 127W(Average), 2W(Standby) Aerial Input Terminal 75Ω unbalanced, coaxial Picture Tube Visible size : 66cm (Measured diagonally) H : 58.3cm × V : 33.0cm High Voltage 31.0kV (+0.2kV / -0.2kV) (at zero beam current, FULL mode) Speaker 13cm × 6.5cm, oval type × 2 Audio Power Output 10W + 10W External

terminal

Audio output (Variable) 0~1000mV(rms), Low impedance, RCA pin jack × 2 Headphone Stereo mini jack (3.5mm) × 1 Remote Control Unit RM-C1800 (AA / R06 dry cell battery × 2)

Design & specifications are subject to change without notice.

EXT-1 (Input/Output) 21 pin Euro connector (SCART socket)

EXT-2 (Input/Output) 21 pin Euro connector (SCART socket)

EXT-3 (Input) 21 pin Euro connector (SCART socket)

EXT-4 (Input) COMPONENT

EXT-5 (Input) S-VIDEO

SECAM

VIDEO

AUDIO

VIDEO AUDIO

47MHz ~ 470MHz

UHF

470MHz ~ 862MHz

CATV

116MHz ~ 172MHz, 220MHz ~ 469MHz

X, Y, Z, Z+1, Z+2, ITALY (A-H, H+1, H+2), F2-F10, F21-F69, R1-R12, R21-R69

38.9MHz (B/G, D/K, I , L), 33.95MHz (L')

SIF

33.4MHz (5.5MHz:B/G),

32.9MHz (6.0MHz:I)

32.4MHz (6.5MHz:L, D/K),

40.45MHz (6.5MHz:L')

PAL

4.43MHz

4.40625MHz / 4.25MHz

NTSC

3.58MHz / 4.43MHz

• Video input, Audio L/R inputs and RGB inputs are available.

• TV broadcast outputs (Video and Audio L/R) are available.

• Video input, S-video (Y/C) input, Audio L/R inputs and RGB inputs areavailable.

• Video and Audio L/R outputs are available.

• T-V LINK functions are available.

• Video input, S-Video (Y/C) input and Audio L/R inputs are available. RCA pin jack × 3

Y : 1V(p-p), Positive (Negative sync provided), 75Ω PB/PR : 0.7V(p-p), 75Ω

• Progressive-scanning signals (525p, 625p, 1125i, 1250i) are available. 500mV (rms), High impedance RCA pin jack × 2

Mini-DIN 4 pin × 1 Y : 1V(p-p), Positive (Negative sync provided), 75Ω C : 0.286V(p-p) (Burst signal), 75Ω 1V(p-p), Positive (Negative sync provided), 75Ω RCA pin jack × 1 500mV(rms), Low impedance, RCA pin jack × 2

HV-28P37SUE HV-28P37SJE

Content

47MHz ~ 470MHz 470MHz ~ 862MHz

---------E2-E12, E21-E69, S1-S41,

X, Y, Z, Z+1, Z+2, IR A-J, F21-F69

33.4MHz (5.5MHz:B/G),

32.9MHz (6.0MHz:I)

32.4MHz (6.5MHz:L, D/K),

1-2 (No.YA010)

Page 3

SECTION 1

PRECAUTION

1.1 SAFETY PRECAUTIONS [EXCEPT FOR UK]

(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.YA010)1-3

Page 4

1.2 SAFETY PRECAUTIONS [FOR UK]

(1) The design of this product contains special hardware and many circuits and compon ents specially for safety purposes. For

continued protection, no changes should be made to the original design unless auth orized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Servi ce should be performed by qualified pe rsonnel only.

(2) Alterations of the design or circuitry of the product 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 product have special safety-related characteristics. These characteristics are often

not evident from visual inspection nor can the protection afforded by them necessary 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 compo nents having such features are identified by shading on the schematics and by ( ) on the Parts List in the 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) The leads in the products are routed and dressed with ties, clamps, tubing’s, barriers and the like to be separated from live parts,

high temperature parts, moving parts and / or sharp edges for the prevention of electric shock and fire hazard. When service is required, the original lead routing and dress should be observed, and it should be confi rmed that they have been returned to normal, after re-assembling.

WARNING

(1) The equipment has been designed and manufactured to meet international safety standards. (2) It is the legal responsibility of the repairer to ensure that these safety standards are maintained. (3) Repairs must be made in accordance with the relevant safety standards. (4) It is essential that safety critical components are replaced by approved parts. (5) If mains voltage selector is provided, check setting for local voltage.

1-4 (No.YA010)

Page 5

SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

2.1 21-pin Euro connector (SCART) : EXT-1/EXT-2/EXT-3 Pin No. Signal designation Matching value EXT-1 EXT-2 EXT-3

1 AUDIO R output 500mV(rms) (Nominal), Low impedance Used (TV OUT) Used (LINE OUT) Not used 2 AUDIO R input 500mV(rms) (Nominal), High impedance Used (R1) Used (R2) Used (R3) 3 AUDIO L output 500mV(rms) (Nominal), Low impedance Used (TV OUT) Used (LINE OUT) Not used 4 AUDIO GND Used Used Used 5 GND (B) Used Used Used 6 AUDIO L input 500mV(rms) (Nominal), High impedance Used (L1) Used (L2) Used (L3) 7 B input 700mV 8 FUNCTION SW

(SLOW SW)

Low : 0V-3V High : 8V-12V, High impedance

9 GND (G) Used Used Used

10 SCL / T-V LINK Not used Used 11 G input 700mV

12 SDA Not used Used (SDA2) Not used 13 GND (R) Used Used Used 14 GND (YS) Used Not used Not used 15 R / C input R : 700mV

C : 300mV 16 Ys input (FAST SW) Low : 0V-0.4V, High : 1V-3V, 75Ω Used Used Not used 17 GND (VIDEO output) Used Used Used 18 GND (VIDEO input) Used Used Used 19 VIDEO output 1V 20 VIDEO / Y input 1V

(P-P) (P-P)

21 COMMON GND Used Used Used

(P-P= Peak to Peak, B-W= Blanking to white peak)

, 75Ω Used Used Not used

(B-W)

Used Used Used

Not used

(SCL2 / TV-LINK)

, 75Ω Used Used Not used

(B-W)

(B-W) (P-P)

, 75Ω

Used (R) Used (C2/R) Used (C3)

(Negative sync), 75Ω Used (TV OUT) Used (LINE OUT) Not used (Negative sync), 75Ω Used Used Used

[Pin assignment]

20 18 16 14 12 10 8 6 4 2

21 19 17 15 13 11 9 7 5 3 1

2.2 MAIN DIFFERENCE LIST

Item

HV-28P37SUE HV-28P37SJE

Content

POWER CORD QMPN160-185-JC QMPK130-185-JC

TV RF System CCIR (B/G, I, D/K, L/L') CCIR (B/G, I, D/K, L) Receiving Frequency VHF 47MHz ~ 470MHz ←

UHF 470MHz ~ 862 MHz ←

CATV 116MHz ~ 172MHz, 220MHz ~ 469MHz ---

Receiving channels E2-E12, E21-E69, S1-S41,

X, Y, Z, Z+1, Z+2, ITALY (A-H, H+1, H+2), F2-F10, F21-F69, R1-R12, R21-R69

E2-E12, E21-E69, S1-S41, X, Y, Z, Z+1, Z+2, IR A-J, F21-F69

(No.YA010)1-5

Page 6

2.3 FEATURES ADVANTAGES OF D.I.S.T

D.I.S.T. (Digital Image Scaling Technology) realizes a flicker-free, high-resolution picture(1 250i/75Hz). It can accept virtually all currently used video signal formats, reproducing them with high resolution and improved detail that is very clear to the viewer. The signal path of D.I.S.T. from input to output can be divided into 5 components: (1) Interl ace-Progressive Converter; (2) Formatter; (3) Enhancer LSI; (4) Driver; and (5) Display Device.

Structure of D.I.S.T

PAL 625i

NTSC 525i

PAL 625p

Source signal format

Compared with current 100Hz technology, the advantages of D.I.S.T. mean that:

(1) Diagonal lines are smooth and free from jaggies since the number of scanning lines has been increased to 1250i. (2) There is no field flicker, since the Formatter raises the frame rate to 75Hz. (3) There is no line flicker, thanks to the I-P conversion to a progressive signal. (4) Scenes with movement are also smooth, thanks to both I-P conversion and the formatting process. (5) Vivid, sharp contours and solid presen ce are ma de possible by the suppo rt of additio nal technologies such as th e Enhan cer

LSI "Super DigiPure" while faithful reproduction without blur or smear is ensured by the Wide-Range CRT Driver.

(6) The refined signal displayed on an appropriate devi ce su ch as a CRT or PDP will provide unprecedented picture quality and

the highest levels of resolution.

(7) Global compatibility can be enjoyed with a maximum 1500i/60Hz display for NTSC DVD or VCR playback on PAL, as well as

other versatile signal sources including PAL, NTSC, DVD or D-VHS.

MULTI SCREEN FUNCTION

POP (Picture-Out-Picture)

Back programs can be seen at once. Three programs are displayed on screen right-hand side besides the program (VHF / UHF / CATV)received now.

INDEX

A favorable program can be selected from the 12 previews on the screen.

SPLIT

Different images, such as a program and video, can be simultaneously seen on two screens.

NATURAL FLAT

It became legible from any position by CRT with few reflection and reflect lumps on the flat screen.

Super Digipure

Super Digipure function create a natural-looking picture by eliminating unnecessary edges from high-contrast and crisp images. And displayes fast-moving pictures more smoothly and naturally on the screen.

COMPONENT VIDEO INPUT TERMINAL

Since the component video input terminal is equipped, it reappears direct without deterriorating the signal from DVD or Video player.

NTSC 525p

I-P Converter

Core of D.I.S.T

Formatter

Enhancer LSI "Super Digipure"

Wide Range CRT Driver

Supporting Components

Fine Pitch CRT

1-6 (No.YA010)

Page 7

2.4 FUNCTIONS

 FRONT PANEL

 REAR PANEL

1 2 3

Remote control sensor

Power lamp

Power button

EXT-

PrPbR

EXT-

AUDIO OUT

SIDE CONTROL JACK

AV TERMINAL BOARD

EXT-

PrPbR

EXT-1

EXT-2

EXT-3

Headphone jack

P / buttons, -/+ buttons

Volume button

EXT-5 terminal

Aeriel terminal

EXT-4 terminal

AUDIO OUT terminal

EXT-1 terminal

EXT-2 terminal

EXT-3 terminal

AUDIO OUT

(No.YA010)1-7

Page 8

 REMOTE CONTROL UNIT

123

ZOOM

BACK

14 15

VCR / TV / DVD

switch

Muting key

Number key

Information key

Zoom key

3D Sound key

TV key

Function (UP/DOWN, RIGHT/LEFT) keys

Text key

Programme / keys

VCR/DVD/Text control key

Standby key

VCR/TV/DVD Switch

AV key

Colour key

Multi screen key

Freeze/Swap key

MENU key

OK key

BACK key

Volume -/+ keys

1-8 (No.YA010)

Page 9

2.5 TECHNICAL INFORMATION

2.5.1 SYSTEM BLOCK DIAGRAM

MAIN PWB

IC1781[10]

MAIN MEMORY

SCL0 / SDA0

DIST PWB

IC1301[0Z]

RGB PROCESSOR

MAIN PWB

IC1721[10]

IP LATCH

IC3001[0Z]

MAIN CHROMA

DEMODULATOR

IC1701[10]

MAIN DAC

IC0212[0H]

DAC1

SCL1 / SDA1

IC801[0S]

SUB CHROMA

DEMODULATOR

IC001[0M]

MAIN MICRO COMPUTER

DEF OSC PWB

IC0161[0H]

DEF CONTROL

IC802[0S]

SUB DIGITAL

COMB FILTER

AV SW PWB

MAIN PWB

TU1001[10]

SCL3 / SDA3

TUNER

IC101[0S]

AV S W

AV SW PWB

IC1251[10]

COMPONENT VIDEO

IC1201[10]

SYNC SEP

IC1001[0Z]

DIST PROCESSOR

DIST PWB

IC1101[10]

MULTI SOUND

PROCESSOR

SCL2 / SDA2

(No.YA010)1-9

Page 10

SECTION 3

DISASSEMBLY

3.1 DISASSEMBLY PROCEDURE

3.1.1 REMOVING THE REAR COVER

(1) Unplug the power plug. (2) Remove 13 screws [A] as shown in the Fig. 3. (3) Withdraw the REAR COVER toward you.

NOTE:

When reinstalling the rear cover, carefully push it i nward after inserting the chassis into the rear cover groove.

3.1.2 REMOVING THE SIDE CONTROL JACK ASSY

• Remove the REAR COVER. (1) Remove 1 screw [B] as shown in Fig.3. (2) Slightly pull the SIDE CONTROL JACK ASSY toward you,

and detach the claw from FRONT CABINET. Then it can be removed.

(3) Then disconnect the conne ctor [F] and [CN 016] as shown

in Fig.1.

3.1.3 REMOVING THE SIDE CONTROL PWB

• Remove the REAR COVER.

• Remove the SIDE CONTROL JACK ASSY. (1) Remove 3 claws [C] from backside of the SIDE CONTROL

JACK ASSY as shown in Fig.1.

(2) Remove the SIDE CONTROL PWB from the SIDE

CONTROL JACK ASSY.

3.1.7 CHECKING THE PW BOARD

(1) Pull out the MAIN CHASSIS (Refer to REMOVING THE

MAIN CHASSIS).

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

check the PW Board from back side.

3.1.8 CAUTION

(1) When erecting the MAIN CHASSIS, be careful so that

there will be no contacting with other PW Board.

(2) Before turning on power, make sure that the wire connector

is properly connected.

(3) 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.

3.1.9 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.

3.1.4 REMOVING THE AV TERMINAL BOARD

• Remove the REAR COVER. (1) Remove 7 screws [D] as shown in Fig.3. (2) Remove 2 claws [E] at the bottom of the AV TERMINAL

BOARD as shown in Fig.2.

(3) Shift the AV TERMINAL BOARD slightly in the direction of

arrow [G], and remove it as shown in Fig.2.

3.1.5 REMOVING THE MAIN CHASSIS

• Remove the REAR COVER. (1) Slightly raise the MAIN CHASSIS, and release two claws

at the bottom of both sides of the MAIN CHASSIS.

(2) Then withdraw the MAIN CHASSIS backward from the

FRONT CABINET (If necessary, detach the wire clamp, connectors etc.).

3.1.6 REMOVING THE MAIN SPEAKER

• Remove the REAR COVER. (1) Remove 2 screws [H], and detach the MAIN SPEAKER

HOLDER as shown in Fig.3 (When removing 2 screws [H] of the MAIN SPEAKER HOLDER, the lower side screw

first, and then upper one). (2) Remove 2 screws [J] attached the MAIN SPEAKER. (3) Follow the same steps when disassemble the other hand

MAIN SPEAKER.

CN016

AV TERMINAL BOARD

SIDE CONTROL

PWB

(Back view)

Fig.1

1-10 (No.YA010)

Fig.2

Page 11

FRONT CABINET

CRT SOCKET PWB

LINE FILTER PWB

MI-COM PWB

MAIN SPEAKER

HOLDER

LF BASE

MAIN SPEAKER

CLAW

POWER & DEF. PWB

HVT HOLDER

MAIN CHASSIS

Fig.1

REAR COVER

FRONT CONTROL PWB

CONTROL BASE

CLAW

MAIN PWB

DIST PWB

AV SW PWB

EHT PWB

DEF OSC PWB

AV TERMINAL BOARD

POWER CORD

Fig.3

(No.YA010)1-11

Page 12

3.2 MEMORY IC REPLACEMENT

3.2.1 MEMORY IC

This TV use the memory IC. In the memory IC, there are memorized data for correctly operating for the video and deflection circuits and more. When replacing the 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

Turn the power off and unplug the power plug.

2. Replace IC.

Be sure to use the memory IC written with the initial se tting data.

SERVICE MENU

1. IF

3. AUDIO

5. VSM PRESET

7. 3DNR

9. SHIPPING(OFF)

1-9 : SELECT i : EXIT

2. V/C

4. DEF

6. STATUS

8. IP

0. BUS FREE

3. Power on

Connect the power plug and turn the power on.

4. Setting of recieve channels

Fig.1

Set the receive channels. For setting, refer to the OPERATING INSTRUCTIONS.

5. User settings

SYSTEM CONSTANT SET

1. P MUTE NO

Check the user setting items according to "FACTORY SHIPPING" at page later. If these are different, set the correct value.

6. Check the SYSTEM CONSTANT items

(1) Before operating the SERVICE MENU, con firm that the

setting of VCR/TV/DVD switch of the REMOTE CONTROL UNIT is at the "TV" side. If this switch have not been properly set, you cannot enter the SERVICE MENU.

(2) Press the [INFORMATION ] key and [MUTING] key on

the REMOTE CONTROL UNIT simultaneously. (3) The SERVICE MENU screen on Fig.1 will be displayed. (4) While the SERVICE MENU is displayed, again press the

[INFORMATION] key and [MUTING] key simultaneously.

Then display the SYSTEM CONSTANAT SET screen as

shown in Fig.2. (5) Refer to the "SETTING VALUE OF SYSTEM

CONSTANT SET", and check the setting items. when it

differ, adjust it with the [FUNCTION (UP/DOWN)] key

and adjust it with the [FUNCTION (RIGHT/LEFT)] keys. (6) Press the [MENU] key to memorize the setting value. (7) Press the [INFORMATION] key twice to return to the

normal screen.

7.SERVICE MENU setting

Verify what to set in the SERVICE MENU, and set whatever is necessary. Refer to the ADJUSTMENT for setting.

MUTING

SERVICE MENU

Enter

INFORMATION

Exit SERVICE MENU

FUNCTION

UP / DOWN

Select the setting item

- / + : STORE i : EXIT

Fig.2

123

4756

ZOOM

BACK

VCR/TV/DVD

SWITCH

Memorize the

adjustment data

FUNCTION

RIGHT/LEFT

Adjust the value

1-12 (No.YA010)

Page 13

3.3 FACTORY SHIPPING SETTING

3.3.1 SETTING VALUE OF SYSTEM CONSTANT SET Setting item Variable range Setting value

1. P MUTE YES / NO NO

3.3.2 SETTING OF REMOTE CONTROL UNIT

Setting item Setting value Setting item Setting value

POWER ON 3D SOUND OFF VOLUME 10 ZOOM PANORAMIC CHANNEL 1 MULTI SCREEN OFF

3.3.3 SETTING OF MENU SCREEN

Setting item Setting value Setting item Setting value

PICTURE SETTING FEATURES

PICTURE MODE BRIGHT SLEEP TIMER OFF CONTRAST Centre BLUE BACK ON BRIGHT Centre CHILD LOCK ID:-----, ALL CH OFF SHARP Centre APPEARANCE TYPE A COLOUR Centre SETUP HUE Centre LANGUAGE ENGLISH COLOR TEMP. COOL PICTURE TILT Centre DIGITAL VNR AUTO(LOW) EDIT / MANUAL PRESET CH only Super Digipure AUTO others : Blank MOVIE THEATER AUTO DECORDER(EXT-2) OFF Colour Digipure ON EXT SETTING COLOR SYSTEM Depend on preset channel S-IN EXT-2 4:3 AUTO ASPECT PANORAMIC ID LIST Blank

SOUND SETTING DUBBING EXT-2 BASS Centre TREBLE Centre BALANCE Centre HEADPHONE VOLUME 10 3D CINEMA SOUND ON

SURROUND MID

BASS BOOST MID

3.3.4 SERVICE MENU SETTING ITEMS Service menu Sub menu item Description

1. IF 1. VCO, 2. ATT

2. V/C 1. CUT_OF_R ~ 15. RY_ANGLE

3. AUDIO 1. ERROR LIMIT ~ 21. CENT TRE It is no required for adjustment. Don't change the value.

4. DEF 1. FREE-RUN ~ 11. V. LIN

5. VSM PRESET 1. CONT ~ 8. WDR B

6. STATUS 1. SOFT ~ 4. IC It is no required for adjustment. Don't change the value.

7. 3DNR 1. YNR LIM ~ 90. HGCON21 It is no required for adjustment. Don't change the value.

8. IP 1. ASL GAIN ~ 70. BVMCORINGON It is no required for adjustment. Don't change the value .

9. SHIPPING Initialize the all data. It is no requirement for adjustment.

0. BUS FREE Stops the all I

C bus communication. It is no requirement for adjustment.

(No.YA010)1-13

Page 14

3.4 REPLACEMENT OF CHIP COMPONENT

3.4.1 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.

3.4.2 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.

3.4.3 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 al-

ternately 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 sol-

der. 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 sol-

der.

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

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

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

NOTE :

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

1-14 (No.YA010)

(4) Then solder leads B and C.

Page 15

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

CONTROL UNIT.

Item Preset value Item Preset value

PICTURE MODE STANDARD Super Digipure ON CONTRAST Centre MOVIE THEATER AUTO BRIGHT Centre BASS / TREBLE / BALANCE Centre SHARP Centre 3D CINEMA SOUND OFF COLOUR Centre ZOOM FULL HUE Centre SLEEP TIMER OFF COLOUR TEMP COOL BLUE BACK OFF DIGITAL VNR AUTO(LOW) Colour Digipure AUTO

4.2 MESURING 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 ITEM

 B1 POWER SUPPLY check  HIGH VOLTAGE  HORIZONTAL FREQUENCY  FOCUS  IF VCO check  FOCUS ADJUSTMENT  VSM PRESET  VIDEO CIRCUIT

WHITE BALANCE (LOW LIGHT) WHITE BALANCE (HIGH LIGHT) SUB BRIGHT SUB CONTRAST SUB COLOR SUB TINT

 DEFLECTION CIRCUIT

V SHIFT V SIZE H POSITION H SIZE SIDE PINC TRAPEZIUM CORNER PIN V LINEARITY

 SUB SCREEN

CONTRAST COLOUR TINT

(No.YA010)1-15

Page 16

4.4 ADJUSTMENT LOCATIONS

FRONT CONTROL PWB

F901

POWER SW

POWER CORD

TO LINE FILTER PWB

TOP

SIDE CONTROL PWB

HEAD

PHONE

TO AV SW PWB

J004

FRONT

TO MAIN PWB

MAIN PWB

SL RT

TO SPEAKER

TUNER

TO DEG COIL

FRONT

TO SIDE CONTROL PWB

TO FRONT CONTROL PWB

MI-COM PWB

DIST PWB

CN008

POWER & DEF. PWB

CN016

CN001

CN002

CN001

CN002

DEF OSC PWB

DOWN

CN016

TO MAIN PWB

AV SW PWB

J004

J005

J006

TOP

J001

J002

J003

CN009

AV SW PWB

CN003

CN010

CN007CN006

TO SIDE

CONTROL PWB

1-16 (No.YA010)

Page 17

FRONT

LINE FILTER PWB

MI-COM PWB

DIST PWB

CN008

CN009

MAIN PWB

CN016

CN001

CN002

CN003

POWER & DEF. PWB

TO LINE FILTER PWB

CN001

CN002

DEF OSC PWB

CN003

TO CRT SOCKET PWB

TO DEF YOKE

CN010

FRONT

TO LINE FILTER PWB

TO FRONT CONTROL PWB

EHT PWB

CN011

DEG

1: TP-E 2: NC 3: X-RAY1 4: NC 5: TP-91

TO POWER & DEF. PWB

TO DEG COIL

FBT

EHT PWB

X-RAY ADJ

TO POWER & DEF. PWB

TOP

R2533

R2528

EHT ADJ

CN011

CN007

TOP

AV SW PWB

CRT SOCKET PWB

TO POWER & DEF. PWB

TO CRT SOCKET PWB

TP-47R

R3225 Lead

(IC3202 9Pin side)

TP-E

TP-47G

R3224 Lead

(IC3201 9Pin side)

TO IP PWB

FOCUS2

FOCUS1

SCREEN

(No.YA010)1-17

Page 18

4.5 TOOL OF SERVICE MENU OPERATION

Operate the SERVICE MENU with the REMOTE CONTROL UNIT.

4.5.1 SERVICE MENU ITEMS

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

Sub Menu item Description

1.IF This mode adjusts the IF circuit.

2.V/C This mode adjusts the VIDEO circuit

3.AUDIO This mode adjusts the AUDIO circuit. [It is no requirement for adjustment.]

4.DEF This mode adjusts the DEFLECTION circuit.

5.VSM PRESET This mode sets the VSM (Video Status Memory) data.

6.STATUS This mode shows the I

C memory data software version and information.

[It is no requirement for adjustment.]

7.3DNR This mode adjusts the 3D NR (three-Dimension Noise Reduction) circuit.

[It is no requirement for adjustment.]

8.IP This mode adjusts the DIST circuit. [It is no requirement for adjustment.]

9.SHIPPING This mode initialize the data for factory shipment. Not to select this mode during adjusting. [It is no requirement for adjustment.]

0.BUS FREE This mode stops the all I

C bus communication.

Not to select this mode during adjusting. [It is no requirement for adjustment.]

4.5.2 BASIC OPERATION IN SERVICE MENU

4.5.2.1 HOW TO ENTER THE SERVICE MENU

Before operating SERVICE MENU, confirm that the setting of VCR/TV/DVD switch of the REMOTE CONTROL UNIT is at the "TV" side. If this switch have not been properly set, you cannot enter the SERVICE MENU.

Press the [INFORMATION] key and [MUTING] key of the REMOTE CONTROL UNIT simultaneously. Then SERVICE MENU screen will be displayed as shown figure.

4.5.3 SUB MENU SCREEN SELECTION

Press one of the CHANNEL number key with the remote control unit, and select the SUB MENU SCREEN from SERVICE MENU.

4.5.4 MEMORIZE THE ADJUSTMENT DATA

When adjustment is completed, press the [MENU] key to memorize the adjustment value. If not to do it, adjustment data is not memorized to the memory IC. And if exit the adjustment mode before memorize the data, the adjustment value which you change is canceled.

4.5.5 RELEASE OF SERVICE MENU

When adjustment is completed, press the [INFORMATION] key. Then return to the SERVICE MENU screen. Again press the [INFORMATION] key, you can return to the normal screen.

1. IF

3. AUDIO

5. VSM PRESET

7. 3DNR

9. SHIPPING(OFF)

MUTING

SERVICE MENU

Enter

INFORMATION

Exit SERVICE MENU

SERVICE MENU

2. V/C

4. DEF

6. STATUS

8. IP

0. BUS FREE

1-9 : SELECT i : EXIT

123

4756

ZOOM

VCR/TV/DVD

SWITCH

1-18 (No.YA010)

FUNCTION

UP / DOWN

Select the setting item

BACK

Memorize the

adjustment data

FUNCTION

RIGHT/LEFT

Adjust the value

Page 19

4.5.6 DESCRIPTION OF SERVICE MENU SCREEN

Describe the screen when display the sub menu screen. For example, describe about 2. V/C, 4. DEF and 5. VSM PRESET.

4.5.6.1 2. V/C

4.5.6.3 5. VSM PRESET

Setting item

Colour System

PAL SECAM N3 N4

4.5.6.2 4. DEF

DEF FULL 1125I

V / C N3

1.CUT_OF_R 130

- / + : STORE i : EXIT

Colour system

Setting value

****************

: PAL : SECAM : NTSC3.58 : NTSC4.43

Input signal

1. FREE-RUN 0

Setting item

- / + : STORE i : EXIT

Zoom mode

( 93)

Setting value

VSM PRESET BRIGHT

1. CONT 16

Setting item Setting value

- / + : STORE i : EXIT

VSM mode

BRIGHT STD SOFT COOL NORMAL WARM

: BRIGHT : STANDARD : SOFT : COOL : NORMAL : WARM

Zoom mode

FULL : FUL L Display only FULL mode. Adjustment in other

zoom modes are not required.

Input signal

900i

: 900i

1125i

: 1125i

1350i

: 1350i

602p

: 602p

(No.YA010)1-19

Page 20

4.5.7 SETTING METHOD OF SUB MENU SCREEN

4.5.7.1 1. IF [Perform only confirmation]

When enter to the 1. IF adjustment screen, display the sub select screen as shown in figure. Then select the one of 1.VCO or 2. ATT with CHANNEL number key on the remote control unit.

1. VCO screen

1) VCO condition Display the VCO condition. The letter where yellow arrow points is current VCO condition.

2) Exit Press the [INFORMATION] key twice to exit to the service menu.

4.5.7.2 2. V/C, 4. DEF and 5. VSM PRESET

The operation method in each screen is almost the same.

1) Setting item Press the [FUNCTION (UP/DWON)] key to select the setting item.

2) Setting value Press the FUNCTION (RIGHT/LEFT)] key to adjust the value.

3) Memorize Press the [MENU] key to memorize the adjustment value.

4) Exit Press the [INFORMATION] key twice to exit to the service menu.

2. V/C

IF SERVICE MENU

1. VCO

2. ATT ON / OFF

1-2:SELECT i : EXIT

VCO(CW) **.**MHz MAIN

TOO HIGH ABOVE REF. JUST REF. BELOW REF. TOO LOW

VCO condition

1.CUT_OF_R 130

Setting item

1.CUT_OF_R~15.RY ANGL

- / + : STORE i : EXIT

****************

Memorize the value

Yellow arrow

i : EXIT

Exit key

V / C N3

Setting value

Exit from this mode

4. DEF

DEF FULL 1125i

1. FREE-RUN 0

Select the setting item

1.FREE-RUN~11.V-LIN

5. VSM PRESET

VSM PRESET BRIGHT

1. CONT 16

Setting item CONT~WDR B

Memorize the value

4.5.7.3 3. AUDIO, 6. STATUS, 7. 3DNR, 8. IP, 9. SHIPPING and 0. BUS FREE

It is no requirement for adjustment. Do not change the values in these sub menu screen.

- / + : STORE i : EXIT

Exit from this modeMemorize the value

Setting value

- / + : STORE i : EXIT

Exit from this mode

( 93)

Setting value

1-20 (No.YA010)

Page 21

4.6 SERVICE MENU FLOW CHART

SERVICE MENU

1. IF

3. AUDIO

5. VSM PRESET

7. 3DNR

9. SHIPPING(OFF)

1-9 : SELECT i : EXIT

2. V/C

4. DEF

6. STATUS

8. IP

0. BUS FREE

1.IF

IF SERVICE MENU

1. VCO

2. ATT ON / OFF

1-2: SELECT i : EXIT

2. V/C

V /C N3

1.CUT_OF_R 130

- / + : STORE i : EXIT

################

3. AUDIO

AUDIO

1. ERROR LIMIT 0100 ERROR LIMIT = D7FF

C_AD_BITS = 00000000

Do not adjust.

6. STATUS

STATUS

1. SOFT

- / + : STORE i : EXIT

7. 3DNR

3DNR 3DYC

1. YNR LIM 0000

- / + : STORE i : EXIT

8. IP

IP 900i

1. ASLGAIN 0000

- / + : STORE i : EXIT

Do not adjust.

- / + : STORE i : EXIT

4. DEF

DEF FULL 1125i

1. FREE-RUN 0

- / + : STORE i : EXIT

(93)

5. VSM PRESET

VSM PRESET BRIGHT

1. CONT 16

- / + : STORE i : EXIT

9. SHIPPING

SHIPPING (OFF) SHIPPING (ON)

0. BUS FREE

I2C BUS FREE

Do not adjust.

(No.YA010)1-21

Page 22

4.7 INITIAL SETTING VALUE OF SERVICE MENU

(1) Adjustment of the SERVICE MENU is made on the basi s of the initial setting values. Ho wever, the new setting values which

displays on the screen in its optimum condition may differ from the initial setting value. (2) Do not change the initial setting values of the items not li sted in "ADJUSTMENT PROCEDURE". (3) "---" is impossible to adjust or not requirement to adjustment.

4.7.1 [1. IF] Setting item Variable range Initial setting value

2.ATT ON/OFF OFF

4.7.2 [2. V/C]

Initial setting value

Setting item

Variable

range

RF External (Composite / S) External (Component)

SECAM PAL SECAM

PAL

NTSC

3.58

NTSC

4.43

625i 525i 625p 525p 1125i 1125i

1.CUT_OF R 000~255 130 130 0 0

2.CUT_OF G 000~255 130 130 0 0

3.CUT_OF B 000~255 130 130 0 0

4.DRIVE_R 000~255 64 64 0 0

5.DRIVE_G 000~255 64 64 0 0

6.DRIVE_B 000~255 64 64 0 0

7.BRIGHT 000~255 130 130 0 0

8.CONT 000~127 52 52 0 0

9.COLOR 000~127 80 55 0 0 63 0 0 0 0 0 0 0

10.HUE 000~127000063068680000

11.TWN_CNT 000~015 9 0 0 0 0 0 0

12.TWN_COL000~015990090000000

13.TWN_TNT000~0000000350000000

14.BY_GAIN 000~063 43 43 43 0 0 0 0 0 0 0

15.RY_ANGL 000~015 7 7 7 0 0 0 0 0 0 0

4.7.3 [5. VSM PRESET]

Initial setting value

Setting item

Variable

range

PICTURE MODE COLOUR TEMP

BRIGHT STANDARD SOFT COOL NORMAL WARM

CONT -16~16 +16 +2 -8 ----- ----- ----BRIGHT -16~16 0 0 0 ----- ----- ----SHARP -16~16 0 0 -2 ----- ----- ----COLOUR -16~16 0 0 -2 ----- ----- ----TINT -16~16 0 0 0 ----- ----- ----WDR R -64~63 ----- ----- ----- -6 0 +11 WDR G -64~63 ----- ----- ----- 0 0 0 WDR B -64~63 ----- ----- ----- +12 0 0

1-22 (No.YA010)

Page 23

4.7.4 [3. AUDIO] Setting item Variable range Initial setting value

1.ERROR LIMIT 0000H~FFF0H 100H

2.A2 ID THR 0000H~00FFH 19H

3.Q-PEAK B/G→I→D/K→L -----

4.SOUND LEVEL ----- FFFFH

Initial setting value

Setting item Variable range

LOW MID HIGH

5.VIRT_MODE PANORAMA / 3D PANORAMA

6.VIRT_SPAT 0000H~007FH 0FH 28H 32H

7.VIRTUAL EF 0000H~007FH 0CH 23H 2FH

Setting item Variable range Initial setting value

8.SPATIAL EF 0000H~00FFH 3FH

Setting item Variable range

9.MB STR 0000H~007FH 00H 00H 25H 32H 39H

10.MB HMC 0000H~007FH 00H 00H 00H 00H 00H

11.MB HP 0000H~001EH 00H 00H 08H 00H 00H

12.MB LP 0000H~001EH 00H 00H 14H 12H 10H

13.MB LIMIT 00E0H~0000H 00H 00H 00H F6 H F1H

14.SUBW LEVEL 0080H~000CH 00H 00H 00H 00H 00H

15.SUBW FREQ 0000H~0028H 00H 00H 1CH 00H 00H

16.SUBW CHAR 0000H~0003H 00H 00H 01H 00H 00H

17.SUBW HP 0000H~0002H 00H 00H 02H 00H 00H

18.VOL CLP M 0000H~0003H 03H 03H 00H 00H 00H

3D PANORAMA 3D PANORAMA 3D PANORAMA

OFF MONO LOW MID HIGH

SURROUND

Initial setting value

BASS BOOST

Setting item Variable range Initial setting value

19.A PROTECT 0000H~0100H 100H

20.CENT BASS 00F1H~000FH 0H

21.CENT TRE 00F1H~000FH 0H

4.7.5 [4. DEF]

Setting item Variab le range

1.FREE-RUN 0~225 90 0 0 0

2.V-SHIFT 0~63 23 0 0 0

3.V-SIZE 0~127 43 0 0 -3

4.H-CENT 255~0 47 0 0 0

5.H-SIZE 0~63 32 0 0 0

6.TRAPEZ 0~63 33 0 0 0

7.EW-PIN 0~63 25 0 0 0

8.COR-UP 0~158000

9.COR-LOW0~158000

10.V.S-COR 0~63 24 0 0 0

11.V-LIN 0~63 41 0 3 0

900i 1125i 1350i 602p

Initial setting value

(No.YA010)1-23

Page 24

4.7.6 [7.3DNR] Initial setting value

Setting item Variable range

PAL SECAM

1. YNR LIM 0000~0003 03

2. YNR K 0000~0003 02

3. YNR GAIN 0000~0003 00

4. CNR LIM 0000~0003 03

5. CNR K 0000~0003 02

6. CNR GAIN 0000~0003 01

7. LTI GAIN 0000~0003 00010000000100000000

8. LTI SLICE 0000~0003 00000000000000000000

9. CTI GAIN 0000~0003 02030302020303020202

10. CTI SLICE 0000~0003 00000000000000000000

11. BRIGHTNESS 0000~000F 01 01 01

12. CONTRAST 0000~00FF 24 24 30

13. AC M SLP 0000~0003 03030103030301030303

14. AC S SLP 0000~0003 03030203030302030303

15. AY M SLP 0000~0003 02020202020202020202

16. AY S SLP 0000~0003 02020202020202020202

17. AC M E SET0000~0003 02020302020203020202

18. AC M F SET0000~0003 02020302020203020202

19. AC S E SET0000~0003 00000200000002000000

20. AC S F SET 0000~0003 00000200000002000000

21. AY M E SET0000~0003 02020302020203020202

22. AY M F SET0000~0003 02020302020203020202

23. AY S E SET0000~0003 00000100000001000000

24. AY S F SET 0000~0003 00000100000001000000

25. BC M SLP 0000~0003 03030303030303030303

26. BC S SLP 0000~0003 03030203030302030303

27. BY M SLP 0000~0003 00000300000003000000

28. BY S SLP 0000~0003 00000200000002000000

29. BC M E SET0000~0003 02020302020203020202

30. BC M F SET0000~0003 02020202020202020202

31. BC S E SET0000~0003 00000200000002000000

32. BC S F SET 0000~0003 00000200000002000000

33. BY M E SET0000~0003 00000300000003000000

34. BY M F SET0000~0003 00000300000003000000

35. BY S E SET0000~0003 00000200000002000000

36. BY S F SET 0000~0003 00000200000002000000

37. BC M UP 0000~0001 01010101010101010101

38. C E CMP 0000~0007 04040504040405040404

39. C S CMP 0000~000F 08 08 01 08 08 08 01 08 08 08

40. F1HER 0000~0003 01010101010101010101

RF External (Composite / S)

NTSC

3.58

NTSC

4.43

PAL SECAM

NTSC

3.58

NTSC

4.43

External

(Component) 625i 525i

1-24 (No.YA010)

Page 25

Initial setting value

Setting item Variable range

PAL SECAM

41. F1VER 0000~0003 01 01 01 01 01 01 01 01 01 01

42. MREF 0000~0007 05 05 02 05 05 05 02 05 05 05

43. CDEYE 0000~0003 01 01 02 01 01 01 02 01 01 01

44. YDEYE 0000~0003 01 01 00 01 01 01 00 01 01 01

45. MDS 0000~0001 00 00 00 00 00 00 00 00 00 00

46. MDMPL 0000~0001 00 00 00 00 00 00 00 00 00 00

47. MDMBL 0000~0001 01 01 00 01 01 01 00 01 01 01

48. 3D STD 0000~0001 00 00 00 00 00 00 00 00 00 00

49. 2ASS 0000~0001 01 01 01 01 01 01 01 01 01 01

50. 2ASEL 0000~0001 00 00 00 00 00 00 00 00 00 00

51. 2ALEV 0000~0007 01 01 01 01 01 01 01 01 01 01

52. 2ASSCM 0000~0003 02 02 02 02 02 02 02 02 02 02

53. CROSS 0000~0001 00 00 01 00 00 00 01 00 00 00

54. CHLPF 0000~0001 00 00 00 00 00 00 00 00 00 00

55. YDCLOFF 0000~0001 01 01 00 01 01 01 00 01 01 01

56. YDNRW 0000~0001 00 00 00 00 00 00 00 00 00 00

57. CDNRW 0000~0001 00 00 01 00 00 00 01 00 00 00

58. YDCMP 0000~000F 08 08 00 08 08 08 00 08 08 08

59. HDAMP1 0000~0007 03 00 01

60. HDGAIN1 0000~0 01F 08 13 16

61. HDAMP2 0000~0007 04 03 03

62. HDGAIN2 0000~0 01F 06 07 28

63. HDAMP3 0000~0007 05 04 04

64. HDGAIN3 0000~0 01F 03 03 12

65. SHCTRL 0000~003F 63

66. MUTE 0000~0001 00

67. CMUTE 0000~0 001 00

71. BCFOFF 0000~0001 01

72. CGAIN 0000~0007 07

73. EN NOI H SY 0000~0007 04

74. EN NOI H WZ 0000~0007 04

75. EN NOI V S[ 0000~0007 0 0

76. EN NOI V WY 0000~0003 01

77. HDPH 0000~000F 00

78. VDPH 0000~000F 00

79. VPHS 0000~0007 00

80. EN PIXH S 0000~000F 00

RF External (Composite / S)

NTSC

3.58

NTSC

4.43

PAL SECAM

NTSC

3.58

NTSC

4.43

External

(Component)

625i 525i

(No.YA010)1-25

Page 26

Initial setting value

Setting item Variable range

PAL SECAM

81. EN PIXH W 0000~000F 00

82. EN PIXV S 0000~000F 00

83. EN PIXV A 0000~0001 00

84. HBLK S 0000~000F 00

85. HBLK W 0000~000F 00

86. FHST S 0000~000F 00

87. FVST S 0000~000F 00

88. EXTCLP 0000~000F 00

89. HGCON12 0000~000F 09 03 12

90. HGCON21 0000~000F 10 14 14

RF External (Composite / S)

NTSC

3.58

NTSC

4.43

PAL SECAM

NTSC

3.58

NTSC

4.43

External

(Component) 625i 525i

1-26 (No.YA010)

Page 27

4.7.7 [8. IP] Initial setting value

Single screen

Setting item Variable range

1. ASLGAIN 0~63 242424242424141324

2. ASLVHGAIN 0~63 242424888058

3. ASLHGAIN 0~63 21 21 26 26 26 26 18 23 26

4. ASLVPEAKFREQ 0~3 111111121

5. ASLHPEAKFREQ 0~7 1 1 1 1 1 1 1 3 1

6. ASLEDGECTRL 0~63 373737373737181537

7. ASLEDGECTRLON0~1 111111111

8. ASLCORINGON 0~1 111111111

9. ASLENHACEON 0~1 1 1 1 1 1 1 1 1 1

10. ASVPEAKFREQ 0~3 2 2 2 2 2 2 3 2 2

11. ASHPEAKFREQ 0~7 4 4 4 4 4 4 4 2 4

12. ASYLCONTROL 0~63 32 32 32 32 32 32 32 8 32

13. ASYLCTRLON 0~1 1 1 1 1 1 1 1 1 1

14. ASYHCONTROL 0~63 636363636363636363

15. ASYHCTRLON 0~1 111111111

16. ASCCONTROL 0~63 7 7 16161616233216

17. ASENHANCEON 0~1 ---- ---- ---- ---- ---- ---- ---- ---- ----

18. ASPMBALANCE 0~63 1 1 6 6 6 6 6 18 6

19. ASPMBLNCEON 0~1 1 1 1 1 1 1 1 1 1

20. ASLIMIT 0~1 515151515151321651

21. ASLIMITON 0~1 111111111

22. ASCORINGON 0~63 1 1 1 1 1 1 1 1 1

23. APBGAIN 0~63 48 26 26 26 26 26 26 26 26

24. APBPEAKFREQ 0~7 7 2 2 2 2 2 2 3 2

25. APBCORING 0~63 8 9 9 9 9 9 9 9 9

26. APBCORINGON 0~1 1 1 1 1 1 1 1 1 1

27. APRGAIN 0~63 48 2 6 26 26 26 26 26 26 26

28. APRPEAKFREQ 0~7 7 2 2 2 2 2 2 3 2

29. APRCORING 0~63 899999999

30. APRCORINGON 0~1 1 1 1 1 1 1 1 1 1

31. AVMPEAKFREQ 0~7 3 3 3 3 3 3 3 2 3

32. AVMLIMITON 0~1 111111111

33. AVMHCONTROL 0~63 32 32 32 32 32 32 26 10 32

34. AVMHCTRLON 0~1 000000100

35. AVMCORINGON 0~1 111111101

625i 525i 625i 525i 625i 525i

External

(Composite / S)

External

(Component)

625p /

525p

1125i

External

(RGB)

(No.YA010)1-27

Page 28

Initial setting value

Text 2 screen / Multi 2 screen / Multi 12 screen

Setting item Variable range

1. ASLGAIN 0~63 24 24 24 24 24 24 14 24 24

2. ASLVHGAIN 0~63 8 8 8 8 8 8 0 8 8

3. ASLHGAIN 0~63 212126262626182626

4. ASLVPEAKFREQ 0~3 1 1 1 1 1 1 1 1 1

5. ASLHPEAKFREQ 0~7 1 1 1 1 1 1 1 1 1

6. ASLEDGECTRL 0~63 37 37 37 37 37 37 18 37 37

7. ASLEDGECTRLON0~1 111111111

8. ASLCORINGON 0~1 111111111

9. ASLENHACEON 0~1 111111111

10. ASVPEAKFREQ 0~3 2 2 2 2 2 2 3 2 2

11. ASHPEAKFREQ 0~7 4 4 4 4 4 4 2 4 4

12. ASYLCONTROL 0~63 32 32 32 35 35 35 32 32 32

13. ASYLCTRLON 0~1 1 1 1 1 1 1 1 1 1

14. ASYHCONTROL 0~63 636363636363636363

15. ASYHCTRLON 0~1 111111111

16. ASCCONTROL 0~63 7 716167 7237 7

17. ASENHANCEON 0~1 ---- ---- ---- ---- ---- ---- ---- ---- ----

18. ASPMBALANCE 0~63 1 1 6 6 6 6 6 18 6

19. ASPMBLNCEON 0~1 1 1 1 1 1 1 1 1 1

20. ASLIMIT 0~1 515151515151321651

21. ASLIMITON 0~1 111111111

22. ASCORINGON 0~63 111111111

23. APBGAIN 0~63 48 26 26 26 26 26 26 26 26

24. APBPEAKFREQ 0~7 7 2 2 2 2 2 2 3 2

25. APBCORING 0~63 8 9 9 9 9 9 9 9 9

26. APBCORINGON 0~1 1 1 1 1 1 1 1 1 1

27. APRGAIN 0~63 48 26 26 26 26 26 26 26 26

28. APRPEAKFREQ 0~7 7 2 2 2 2 2 2 3 2

29. APRCORING 0~63 8 9 9 9 9 9 9 9 9

30. APRCORINGON 0~1 111111111

31. AVMPEAKFREQ 0~7 3 3 3 3 3 3 3 2 3

32. AVMLIMITON 0~1 1 1 1 1 1 1 1 1 1

33. AVMHCONTROL 0~63 323232323232261032

34. AVMHCTRLON 0~1 000000100

35. AVMCORINGON 0~1 111111101

625i 525i 625i 525i 625i 525i

External

(Composite / S)

External

(Component)

625p /

525p

screen

External

(RGB)

1-28 (No.YA010)

Page 29

Initial setting value

When main screen input is other than RGB, 625p and 525p

Setting item Variable range

36. BSLGAIN 0~63 24 24 24 24 2 4 24 24 24

37. BSLVHGAIN 0~63 8 8 8 8 8 8 8 8

38. BSLHGAIN 0~63 2121212626262626

39. BSLVPEAKFREQ 0~3 1 1 1 1 1 1 1 1

40. BSLHPEAKFREQ 0~7 1 1 1 1 1 1 1 1

41. BSLEDGECTRL 0~63 37 37 37 37 37 37 37 37

42. BSLEDGECTRLON0~1 11111111

43. BSLCORINGON 0~1 1 1 1 1 1 1 1 1

44. BSLENHACEON 0~1 1 1 1 1 1 1 1 1

45. BSVPEAKFREQ 0~3 2 2 2 2 2 2 2 2

46. BSHPEAKFREQ 0~7 4 4 4 4 4 4 4 4

47. BSYLCONTROL 0~63 32 32 32 35 35 35 35 32

48. BSYLCTRLON 0~1 1 1 1 1 1 1 1 1

49. BSYHCONTROL0~63 6363636363636363

50. BSYHCTRLON 0~1 1 1 1 1 1 1 1 1

51. BSCCONTROL 0~63 7 7 7 16 16 7 7 7

52. BSENHANCEON 0~1 1 1 1 1 1 1 1 1

53. BSPMBALANCE 0~63 1 1 1 6 6 6 6 6

54. BSPMBLNCEON 0~1 1 1 1 1 1 1 1 1

55. BSLIMIT 0~1 5151515151515151

56. BSLIMITON 0~1 1 1 1 1 1 1 1 1

57. BSCORINGON 0~1 1 1 1 1 1 1 1 1

58. BPBGAIN 0~63 48 26 26 2 6 26 26 26 26

59. BPBPEAKFREQ 0~7 7 2 2 2 2 2 2 2

60. BPBCORING 0~63 8 9 9 9 9 9 9 9

61. BPBCORINGON 0~1 1 1 1 1 1 1 1 1

62. BPRGAIN 0~63 48 26 26 26 26 26 26 26

63. BPRPEAKFREQ 0~7 7 2 2 2 2 2 2 2

64. BPRCORING 0~63 8 9 9 9 9 9 9 9

65. BPRCORINGON 0~1 1 1 1 1 1 1 1 1

66. BVMPEAKFREQ 0~7 3 3 3 3 3 3 3 3

67. BVMLIMITON 0~1 11111111

68. BVMHCONTROL 0~63 32 32 32 3 2 32 32 32 32

69. BVMHCTRLON 0~1 00000000

70. BVMCORINGON 0~1 1 1 1 1 1 1 1 1

Single

screen

625i 525i 625i 525i 625i 525i

Multi 2 screen (Sub screen)

External

(Composite / S)

External

(Component)

External

(RGB)

(No.YA010)1-29

Page 30

Initial setting value

When main screen input is one of RGB, 625p or 525p

Setting item Variable range

625i 525i 625i 525i 625i 525i

36. BSLGAIN 0~63 24 24 24 24 24 24 24 24

37. BSLVHGAIN 0~63 8 8 8 8 8 8 8 8

38. BSLHGAIN 0~63 2121262626262626

39. BSLVPEAKFREQ 0~3 1 1 1 1 1 1 1 1

40. BSLHPEAKFREQ 0~7 1 1 1 1 1 1 1 1

41. BSLEDGECTRL 0~63 37 37 37 37 37 37 37 37

42. BSLEDGECTRLON 0~1 1 1 1 1 1 1 1 1

43. BSLCORINGON 0~1 1 1 1 1 1 1 1 1

44. BSLENHACEON 0~1 1 1 1 1 1 1 1 1

45. BSVPEAKFREQ 0~3 2 2 2 2 2 2 2 2

46. BSHPEAKFREQ 0~7 4 4 4 4 4 4 4 4

47. BSYLCONTROL 0~63 32 32 35 35 35 35 32 35

48. BSYLCTRLON 0~1 1 1 1 1 1 1 1 1

49. BSYHCONTROL0~63 6363636363636363

50. BSYHCTRLON 0~1 1 1 1 1 1 1 1 1

51. BSCCONTROL 0~63 7 7 16 16 7 7 7 7

52. BSENHANCEON 0~1 1 1 1 1 1 1 1 1

53. BSPMBALANCE 0~63 1 1 6 6 6 6 6 10

54. BSPMBLNCEON 0~1 1 1 1 1 1 1 1 1

55. BSLIMIT 0~1 5151515151515151

56. BSLIMITON 0~1 1 1 1 1 1 1 1 1

57. BSCORINGON 0~1 1 1 1 1 1 1 1 1

58. BPBGAIN 0~63 26 26 26 26 26 26 26 26

59. BPBPEAKFREQ 0~7 2 2 2 2 2 2 2 2

60. BPBCORING 0~63 9 9 9 9 9 9 9 9

61. BPBCORINGON 0~1 1 1 1 1 1 1 1 1

62. BPRGAIN 0~63 26 26 26 26 26 26 26 26

63. BPRPEAKFREQ 0~7 2 2 2 2 2 2 2 2

64. BPRCORING 0~63 9 9 9 9 9 9 9 9

65. BPRCORINGON 0~1 1 1 1 1 1 1 1 1

66. BVMPEAKFREQ 0~7 3 3 3 3 3 3 3 3

67. BVMLIMITON 0~1 1 1 1 1 1 1 1 1

68. BVMHCONTROL0~63 3232323232323232

69. BVMHCTRLON 0~1 0 0 0 0 0 0 0 0

70. BVMCORINGON 0~1 1 1 1 1 1 1 1 1

Multi 2 screen (Sub screen)

External

(Composite / S)

External

(Component)

External

(RGB)

screen

1-30 (No.YA010)

Page 31

4.8 ADJUSTMENT PROCEDURE

4.8.1 CHECK ITEM

Item

B1 POWER SUPPLY check

4.8.2 HIGH VOLTAGE

Measuring

instrument

Signal generator

DC voltmeter Remote

control unit

S1 Connector TP-91 TP-E [MAIN PWB]

Test point Adjustment part Description

[2. V/C]

1. CUT_OF_R SCREEN VR

[In FBT]

(1) Receive the black and white signal (color off). (2) Connect the DC voltmeter to TP-91 (S1 connector 5

pin) and TP-E (S1 connector 1 pin). (3) Select 2. V/C. (4) Select < 1. CUT_OF_R >. (5) Show one horizontal line with the [YELLOW (FREEZE/

SWAP)] key. (6) Turn the SCREEN VR counterclockwise to display

whole black screen. (7) Make sure that the voltage is DC148V (±2V). (8) Readjust the SCREEN VR to appear the horizontal

line faitly, and cancel the horizontal line by pressing

the [YELLOW (FREEZE/SWAP)] key.

Item

HIGH VOLTAGE Signal

4.8.3 HORIZONTAL FREQUENCY

Item

HORIZONTAL FREQUENCY

Measuring

instrument

CRT anode [2. V/C]

generator HV voltmeter Remote

control unit

Measuring

instrument

Remote control unit

Test point Adjustment part Description

(1) Receive the black and white signal (color off).

1. CUT_OF_R EHT ADJ VR (R2528)

[EHT PWB] SCREEN VR

[In FBT]

Test point Adjustment part Description

[4. DEF]

1. FREE-RUN

(2) Connect the HV voltmeter to CRT anode and

chassis GND. (3) Select 2. V/C. (4) Select < 1. CUT_OF_R >. (5) Show one horizontal line with the [YELLOW (FREEZE/

SWAP)] key. (6) Turn the SCREEN VR counterclockwise to display

whole black screen. (7) Adjust EHT ADJ VR so that the voltage become

31kV (±0.2V). (8) Readjust the SCREEN VR to appear the horizontal

line faitly, and cancel the horizontal line by pressing

the [YELLOW (FREEZE/SWAP)] key.

(1) Receive any broadcast. (2) Select 4. DEF. (3) Confirm that when you enter to the 4. DEF, the

screen automatically show the FREE-RUN screen.

And the picture run up or down. (4) Adjust the < 1. FREE-RUN > to stop the picture. But

the picture does not stop completely. (5) Press the [MENU] key to memorize the adjustment

data.

(No.YA010)1-31

Page 32

4.8.4 TUNER / IF CIRCUIT

Item

Measuring

instrument

IF VCO check Remote

control unit

VCO(CW) **.**MHz MAIN

TOO HIGH ABOVE REF. JUST REF. BELOW REF. TOO LOW

4.8.5 FOCUS

Item

Measuring

instrument

FOCUS Signal

generator

Test point Adjustment part Description

[1. IF]

1. VCO

• It must not adjust without inputting the RF signal. (1) Receive the broadcast. (2) Select 1. IF. (3) Select < 1. VCO >. (4) Confirm that the letter of [JUST REF.] displayed in

yellow.

YELLOW

i : EXIT

Test point Adjustment part Description

FOCUS1 VR FOCUS2 VR [In FBT]

(1) Receive the crosshatch signal. (2) Select the ZOOM to FULL. (3) While watching to th e screen, adjust the FOCUS2

VR to the horizontal lines will be clear and in fine detail at center of screen.

(4) Then adjust the FOCUS1 VR to the vertical lines will

be clear and in fine detail at the circumference part of screen.

(5) Make sure that the picture is in focus even when the

screen gets darkened.

1-32 (No.YA010)

Horizontal line

FOCUS

SCREEN

Vertical line

FOCUS2 VR

FOCUS1 VR

SCREEN VR

Page 33

4.8.6 VSM PRESET

Item

VSM PRESET

instrument

Remote control unit

setting

Measuring

Test point Adjustment part Description

[5. VSM PRESET]

1. CONT

2. BRIGHT

3. SHARP

4. COLOUR

5. TINT

6. WDR R

7. WDR G

8. WDR B

(1) Select 5. VSM PRESET (2) Set the PICTURE MODE to "BRIGHT". (3) Select < 1. CONT >. (4) Set the initial setting value of VSM PRESET, as

shown in the table given below.

(5) Press the [MENU] key to memorize the setting

value.

(6) Select < 2. BRIGHT > to < 8. WDR B > in turn. Check

and set the values.

(7) Respectively select the "STANDARD" to "WARM",

and make similar adjustment as same step as avobe.

NOTE:

Refer to OPERATING INSTRUCTIONS to switch the PICTURE MODE.

PICTURE MODE COLOUR TEMP

CONT

BRIGHT

SHARP

COLOUR

TINT

WDR R

WDR G

WDR B

BRIGHT

+16 +2 -8 ----- ----- -----

0 0 0 ----- ----- -----

0 0 -2 ----- ----- -----

0 0 0 ----- ----- -----

----- ----- -----

STANDARD SOFT COOL NORMAL

-6 0 +11

000

+12 0 0

WARM

(No.YA010)1-33

Page 34

4.8.7 VIDEO CIRCUIT

Item

WHITE BALANCE

Measuring

instrument

Signal generator

(LOW LIGHT)

Remote control unit

ZOOM

Test point Adjustment part Description

V /C N3

1.CUT_OF_R 130

- / + : STORE i : EXIT

################

Single horizontal line

[2. V/C]

1. CUT_OF_R

2. CUT_OF_G

3. CUT_OF_B SCREEN VR

[In FBT]

[YELLOW] key

(1) Receive the black and white signal (color off). (2) Select the 2. V/C.

(3) Set the initial setting value of < 1.CUT_OF_R >, < 2.

CUT_OF_G > and < 3. CUT_OF_B >.

(4) Display the single horizonta l line with the [YELLOW

(FREEZE/SWAP)] key. (5) Turn the SCREEN VR all the way to the left. (6) Turn the SCREEN VR gradually to the right from the

left until either one of the red, blue or green color

apperares faintly.

(7) Adjust the two colors CUTOFF vlues which did not

appear until the single horizontal line that is dsiplayed

become white with the < 1.CUT_OF_R >, < 2.

CUT_OF_G > or < 3. CUT_OF_B >. (8) Press the [MENU] key to memorize the adjustment

value. (9) Turn the SCREEN VR until the single horizontal line

is displayed faitly.

(10) Press the [YELLOW (FREEZE/SWAP)] key to

cancel the single horizontal line mode.

(11) Confirm that whether the color ingredient of R, G or

B is visible to the black component, which shines

white slightly.

(12) Input the black and white of 625p signal to the

component input terminal.

(13) Confirm that there is no problem on the low light

adjustment condition. If it is too bad, adjust the < 1.

CUT_OF_R > to < 3. CUT_OF_B > as same step as

avobe mentioned.

1. CUT_OF_R

2. CUT_OF_G

3. CUT_OF_B

[FUNCTION] keys

BACK

Initial setting valueSetting item

130

1-34 (No.YA010)

Page 35

Item

WHITE BALANCE (HIGH LIGHT)

Measuring

instrument

Test point Adjustment part Description

Signal generator

Remote control unit

V /C N3

1.DRIVE_R 64

- / + : STORE i : EXIT

################

[2. V/C]

4. DRIVE_R

5. DRIVE_G

6. DRIVE_B

(1) Receive the black and white signal (color off). (2) Select the 2. V/C. (3) Set the initial setting value of < 4. DRIVE_R >, < 5.

DRIVE_G > and < 6. DRIVE_B >.

(4) Adjust the high light values until screen becomes

white with the < 4. DRIVE_R >, < 5. DRIVE_G > and < 6. DRIVE_B >.

(5) Press the [MENU] key to memorize the adjustment

value.

Setting item

4. DRIVE_R

5. DRIVE_G

6. DRIVE_B

SUB BRIGHT Remote

control unit

Setting item

7. BRIGHT

SUB CONTRAST

Remote control unit

Setting item

8. CONT

Initial setting value

[2. V/C]

7. BRIGHT

Initial setting value

130

[2. V/C]

8. CONT

Initial setting value

(1) Receive the broadcast. (2) Select 2. V/C. (3) Set the initial setting value of the < 7. BRIGHT >. (4) If the brightness is not the best with the initial setting

value, make fine adjustment of the < 7. BRIGHT > until you get the optimum brightness.

(5) Press the [MENU] key to memorize the adjustment

values.

(1) Receive the broadcast. (2) Select 2. V/C. (3) Set the initial setting value of the < 8. CONT >. (4) If the contrast is not the best wi th the initial setting

value, make fine adjustment of the < 8. CONT > until you get the optimum contrast.

(5) Press the [MENU] key to memorize the adjustment

values.

(No.YA010)1-35

Page 36

Item

Measuring

instrument

SUB COLOUR(1) Signal

generator Remote

control unit

Colour system

PAL

Test point Adjustment part Description

[2. V/C]

[Method of adjustment without measuring instruments]

9. COLOUR

PAL COLOUR

(1) Receive PAL broadcast. (2) Select 2. V/C. (3) Set the initial setting value for < 9. COLOUR >.

Initial setting value

(4) If the colour is not the best with the initial set value,

make fine adjustment until you get the best colour. (5) Press the [MENU] key and memorize the adjustment value.

SECAM

NTSC 3.58

SUB COLOUR(2) Signal

generator Oscilloscope Remote

control unit

(75%)

Colour system

TP-47R TP-E [CRT SOCKET PWB]

SECAM COLOUR

(1) Receive SECAM broadcast. (2) Select 2. V/C. (3) Set the initial setting value for < 9. COLOUR >. (4) If the colour is not the best with the initial set value,

make fine adjustment until you get the best colour. (5) Press the [MENU] key and memorize the adjustment value.

NTSC 3.58 COLOUR

(1) Input NTSC 3.58MHz COMPOSITE VIDEO signal. (2) Select 2. V/C. (3) Set the initial setting value for < 9. COLOUR >. (4) If the colour is not the best with the initial set value,

make fine adjustment until you get the best colour. (5) Press the [MENU] key and memorize the adjustment value.

[2. V/C]

[Method of adjustment using measuring instruments]

9. COLOUR

PAL COLOUR

(1) Receive PAL full field colour bar signal (75% white). (2) Select 2. V/C. (3) Set the initial setting value of < 9. COLOUR >. (4) Connect the oscilloscope between TP-47R and

TP-E at the CRT SOCKET PWB. (5) Adjust < 9. COLOUR > and bring the value of (A) in

the illustration to the values as shown in the table

(Voltage difference between white (W) and red (R)). (6) Press the [MENU] key and memorize the adjustment value.

(-)

(A)

SECAM COLOUR

(+)

(1) Receive SECAM colour bar signal (75% white). (2) Select 2. V/C. (3) Set the initial setting value of < 9. COLOUR >. (4) Connect the oscilloscope between TP-47R and

TP-E at the CRT SOCKET PWB. (5) Adjust < 9. COLOUR > and bring the value of (A) in

the illustration to the values as shown in the table

(Voltage difference between white (W) and red (R)).

Adjustment value

(6) Press the [MENU] key and memorize the adjustment value.

1-36 (No.YA010)

PAL

SECAM

NTSC 3.58

+5V

-2V

NTSC 3.58 COLOUR

(1) Input NTSC3.58MHz full field colour bar signal (75%

white). (2) Select 2. V/C. (3) Set the initial setting value for < 9. COLOUR >. (4) Connect the oscilloscope between TP-47R and

TP-E at the CRT SOCKET PWB. (5) Adjust < 9. COLOUR > and bring the value of (A) in

the illustration to the values as shown in the table

(Voltage difference between white (W) and red (R)). (6) Press the [MENU] key and memorize the adjustment value.

Page 37

Item

Measuring

instrument

SUB TINT(1) Signal

generator Remote

control unit

10.TINT

SUB TINT(2) Signal

generator Oscilloscope Remote

control unit

(75%)

TP-47R TP-E [CRT SOCKET PWB]

Test point Adjustment part Description

[2. V/C]

[Method of adjustment without measuring instruments]

10. TINT

NTSC 3.58 TINT

(1) Input NTSC3.58MHz full field colour bar signal (75%

white).

(2) Select 2. V/C.

Initial setting valueSetting item

(3) Set the initial setting value of < 10. TINT >. (4) If the tint is not the best with the initial set value,

make fine adjustment until you get the best hue.

(5) Press the [MENU] key and memorize the adjustment

value.

[2. V/C]

[Method of adjustment using measuring instruments]

10. TINT

NTSC 3.58 TINT

(1) Input NTSC3.58MHz full field colour bar signal (75%

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

TP-E at the CRT SOCKET PWB. (5) Adjust < 10. TINT > and bring the value of (B) in the

illustration to the values as shown in the table

(Voltage difference between white (W) and yellow

(-)

(B)

(+)

(Y)). (6) Press the [MENU] key and memorize the adjustment

value.

Setting item

10.TINT

Adjustment value

+1V

(No.YA010)1-37

Page 38

4.8.8 DEFLECTION CIRCUIT

(1) The deflection 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.

(2) There are several kinds of adjustment modes with the vertical fre quency (Vertical frequency : PAL-50Hz, NTSC-60Hz).

a) At first, the adjustment in PAL-50Hz, 900i mode should be done. Then the adjustment for the other vertical frequency mode

is corrected in the respective value at the same time. b) However, if the picture quality has not been optimized, adjust each vertical frequency mode again, respectively. c) If adjustment in PAL-50Hz each vertical frequency mode has been done in very high accuracy, the adjustment for the same

vertical frequency mode in NTSC-60Hz mode is corrected in the respective value. Adjustment is completed at this time. d) If the picture quality in NTSC-60Hz has not been optimized, adjust each zoom mode again in NTSC-60Hz, respectively. In

this case, only NTSC-60Hz each zoom mode is corrected.

(3) Deflection adjustment should surely carry out by setting zoom mode to FULL. Since a deflection setup of those other than FULL

mode is carried out by SERVICE MENU 8. IP setting, adjustment in zoom modes other than FULL mode is unnecessary.

Item

V. POSITION Signal

Measuring

instrument

generator

Test point Adjustment part Description

[4. DEF]

2. V-SHIFT

(1) Select the ZOOM mode to FULL. (2) Receive the circle pattern signal.

(3) Select 4. DEF. Remote control unit

(4) Set the initial setting value of < 2. V-SHIFT >.

(5) Adjust < 2. V-SHIFT > to beco me A=B as shown in

the figure.

(6) Press the [MENU] key to memorize the adjustment

value.

V. SIZE Signal

generator

[4. DEF]

3. V-SIZE

Remote control unit

Screen

size

Setting position 1125i 1350i 602p

900i

(1) Receive the crosshatch signal.

(2) Select 4. DEF.

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

(4) Adjust < 3. V-SIZE > to become the vertical screen

size given below table.

(5) Press the [MENU] key to memorize the adjustment

value.

Picture

size

100%

SCREEN TOP

SCREEN BOTTOM

1-38 (No.YA010)

92% 92% 92% 92%

Page 39

Item

Measuring

instrument

H. POSITION Signal

generator Remote

control unit

90% 90%

Test point Adjustment part Description

[4. DEF]

4. H-CENT

(1) Receive the circle pattern signal. (2) Select 4. DEF. (3) Set the initial setting value of < 4. H-CENT >. (4) Adjust < 4. H-CENT > to become C=D as shown in

left figure.

(5) Press the [MENU] key to memorize the adjustment

value.

H. SIZE Signal

generator Remote

control unit

5. H-SIZE

SIDE PIN Signal

generator Remote

control unit

900iSetting item

92%

[4. DEF]

5. H-SIZE

1125i 1350i

92% 92% 92%

[4. DEF]

7. EW-PIN

Straight

(1) Receive the circle pattern signal. (2) Select 4. DEF. (3) Set the initial setting value of < 5. H-SIZE >. (4) Adjust < 5. H-SIZE > to become the horizontal

screen size is in the table given left.

(5) Press the [MENU] key to memorize the adjustment

value.

602p

(1) Receive the circle pattern signal. (2) Select 4. DEF. (3) Set the initial setting value of < 7. EW-PIN >. (4) Adjust < 7. EW-PIN > so that second vertical lines at

the right and left edges of the screen become straight. Also make third vertical lines become straight.

(5) Press the [MENU] key to memorize the adjustment

value.

(No.YA010)1-39

Page 40

Item

Measuring

instrument

TRAPEZIUM Signal

generator Remote

control unit

Test point Adjustment part Description

[4. DEF]

6. TRAPEZ

(1) Receive the crosshatch signal.

(2) Select 4. DEF.

(3) Set the initial setting value of < 7. TRAPEZ >.

(4) Adjust < 7. TRAPEZ > to become the vertical lines at

the right and left edges of the screen parallel.

(5) Press the [MENU] key to memorize the adjustment

value.

Parallel

CORNER PIN Signal

generator Remote

control unit

Straight Straight

V. LINEARITY Signal

generator Remote

control unit

[4. DEF]

8. COR-UP

9. COR-LOW

[4. DEF]

10. V.S-COR

11. V-LIN

TOP

CENTER

(1) Receive the crosshatch signal.

(2) Select 4. DEF.

(3) Set the initial setting value of < 8. COR-UP >.

(4) Adjust < 8. COR-UP > to become the vertical line at

the upper corner straight. (5) Set the initial setting value of < 9. COR-LOW >. (6) Adjust < 9. COR-LOW > to become the vertical line

at the lower corner straight. (7) Press the [MENU] key to memorize the adjustment

value.

Should not adjustment except for in case of under the condition that remarkably bad about vertical linearity.

(1) Receive the crosshatch signal. (2) Select 4. DEF. (3) Set the initial setting value of < 10. V.S-COR >. (4) Adjust the < 10. V.S-COR > to the all square in the

crosshatch screen become true square. (5) Set the initial setting value of < 11.V-LIN >. (6) Adjust the < 11. V-LIN > to the all vertical lines

become straight. (7) Press the [MENU] key to memorize the adjustment

value.

1-40 (No.YA010)

BOTTOM

Page 41

4.8.9 SUB SCREEN ADJUSTMENT

Item

SUB SCREEN CONTRAST

Measuring

instrument

Signal generator

Test point Adjustment part Description

Remote control unit

SUB SCREEN COLOUR & TINT

Signal generator

Remote

TP-47R TP-E [CRT SOCKET PWB]

control unit

SUB SCREEN COLOUR

PAL

SECAM

NTSC 3.58

SUB SCREEN COLOUR ADJUSTMENT VALUE[V]

Colour system

PAL

Initial setting valueColour system

Adjustment value

+5V

[2. V/C]

11. TWN_CONT

[2. V/C]

12. TWN_COL

13. TWN_TNT

(1) Set the screen to the multi (twin) mode. (2) Receive the black and white signal (color off) to both

right and left screen. (3) Select 2. V/C. (4) Set the initial setting value of < 11. TWN_CONT >. (5) If the contrast of both screen are not the best with the

initial setting value, make fine adjustment of the < 11.

TWN_CONT > until you get the optimum contrast. (6) Press the [MENU] key to memorize the adjustment

values.

PAL COLOUR

(1) Set the screen to the multi (twin) mode. (2) Receive PAL full field colour bar signal (75% white)

to the sub screen. (3) Select 2. V/C. (4) Set the initial setting value of < 12. TWN_COL >. (5) Connect the oscilloscope between TP-47R and

TP-E at the CRT SOCKET PWB. (6) Adjust < 12. TWN_COL > so that the voltage

difference between white and red become +5V. (7) Press the [MENU] key to memorize the adjustment value.

SECAM COLOUR [Except model for UK]

(1) Set the screen to the multi (twin) mode. (2) Receive SECAM colour bar signal (75% white) to the

sub screen. (3) Select 2. V/C. (4) Set the initial setting value of < 12. TWN_COL >. (5) Connect the oscilloscope between TP-47R and

TP-E at the CRT SOCKET PWB. (6) Adjust < 12. TWN_COL > so that the voltage

difference between white and red become 0V. (7) Press the [MENU] key to memorize the adjustment value.

SECAM

NTSC 3.58

-2V

SUB SCREEN TINT

Colour system

NTSC 3.58

Initial setting value

SUB SCREEN TINT ADJUSTMENT VALUE[V]

Colour system

NTSC 3.58

Adjustment value

+1V

NTSC COLOUR

(1) Set the screen to the multi (twin) mode. (2) Input NTSC3.58 full field colour bar signal (75%

white) from the EXT terminal to sub screen. (3) Select 2. V/C. (4) Set the initial setting value of < 12. TWN_COL >. (5) Connect the oscilloscope between TP-47R and

TP-E at the CRT SOCKET PWB. (6) Adjust < 12. TWN_COL > so that the voltage

difference between white and red become -2V. (7) Press the [MENU] key to memorize the adjustment value.

NTSC TINT

(1) Set the screen to the multi (twin) mode. (2) Input NTSC3.58 full field colour bar signal (75%

white) from the EXT terminal to sub screen. (3) Select 2. V/C. (4) Set the initial setting value of < 13. TWN_TNT >. (5) Connect the oscilloscope between TP-47R and

TP-E at the CRT SOCKET PWB. (6) Adjust < 13. TWN_TNT > so that the voltage

difference between white and yellow become +1V. (7) Press the [MENU] key to memorize the adjustment value.

(No.YA010)1-41

Page 42

SECTION 5

TROUBLESHOOTING

This service manual does not describe TROUBLESHOOTING.

1-42 (No.YA010)

Page 43

VICTOR COMPANY OF JAPAN, LIMITED

AV & MULTIMEDIA COMPANY VIDEO DISPLAY CATEGORY 12, 3-chome, Moriya-cho, kanagawa-ku, Yokohama, kanagawa-prefecture, 221-8528, Japan

(No.YA010)

Printed in Japan

WPC

JVC HV-28P37SJE, HV-28P37SUE Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1.1 SAFETY PRECAUTIONS [EXCEPT FOR UK]

1.2 SAFETY PRECAUTIONS [FOR UK]

2.1 21-pin Euro connector (SCART) : EXT-1/EXT-2/EXT-3 Pin No. Signal designation Matching value EXT-1 EXT-2 EXT-3

2.2 MAIN DIFFERENCE LIST

2.3 FEATURES ADVANTAGES OF D.I.S.T

2.4 FUNCTIONS

2.5 TECHNICAL INFORMATION

3.1 DISASSEMBLY PROCEDURE

3.2 MEMORY IC REPLACEMENT

3.3 FACTORY SHIPPING SETTING

3.4 REPLACEMENT OF CHIP COMPONENT

4.1 ADJUSTMENT PREPARATION

4.2 MESURING INSTRUMENT AND FIXTURES

4.3 ADJUSTMENT ITEM

4.4 ADJUSTMENT LOCATIONS

4.5 TOOL OF SERVICE MENU OPERATION

4.6 SERVICE MENU FLOW CHART

4.7 INITIAL SETTING VALUE OF SERVICE MENU

4.8 ADJUSTMENT PROCEDURE