JVC AV-21KJ1SEF-A-B, AV-21KJ1SNF-A-B, AV-21KJ1SPF-A-B Service Manual

SERVICE MANUAL

COLOUR TELEVISION

5213520039

AV-21KJ1SEF/A, /B, AV-21KJ1SNF/A, /B, AV-21KJ1SPF

RM-C1100

/A, /B

TABLE OF CONTENTS

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

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

3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20

No.52135

2003/9

SPECIFICATION

Item

Dimensions ( W × H × D ) 61cm × 45cm × 48cm Mass 20.5kg TV RF System B/G, D/K, K1 B/G B/G, L/L' Colour System TV Mode PAL / SECAM PAL PAL / SECAM

Video Mode PAL / SECAM / NTSC 3.58 /

NTSC 4.43 Sound System MONO Teletext System 1page Number of CH memory position 100ch Receiving

Frequency

Intermediate Frequency

Colour Sub Carrier Frequency

Power Input AC220V ~ AC240V, 50Hz Power Consumption 85W(Max), 4W(Standby) Aerial Input Terminal 75Ω unbalanced, coaxial Picture Tube Visible size : 51cm (Measured diagonally) High Voltage 25.3kV Speaker 5.7cm × 16cm oval type × 2 Audio Output 5.5W Input Video

Output Video

Input Terminal Front Side

Output Terminal Right Side

Remote Control Unit VE-30017763 (RM-C1100), (AA/R06 dry battery × 2)

Design & specifications are subject to change without notice.

VHF Low 46.25MHz ~ 168.25MHz

VHF High 175.25MHz ~ 463.25MHz

UHF 471.25MHz ~ 863.25MHz

CATV BG : S01-S41 & S75-S79

DK : S01-S41

VIF

38.9MHz (B/G, D/K, L) / 33.9MHz (L')

SIF

33.4MHz (5.5MHz:B/G) / 32.9MHz (6.0MHz:D/K) / 32.4MHz (6.5MHz:L) / 40.4MHz (6.5MHz:L')

PAL

4.43MHz

SECAM

S-Video

Audio (MONO)

Rear Side

4.40625MHz / 4.25MHz

NTSC

3.58MHz / 4.43MHz

1V(p-p) 75Ω

Y : 1V(p-p) positive

C : 0.286V(p-p)

500mV(rms) (-4dBs), High impedance (RCA pin jack)

1V(p-p) 75Ω

500mV(rms), Low impedance

F-AV (Video / Audio)

AV-1 (Video / Audio / RGB)

AV-1S (Video / Audio / RGB / S-VIDEO)

Headphone Jack (Mono mini jack Ø3.5mm × 1)

AV-1 (Video / Audio)

AV-1S (Video / Audio)

AV-21KJ1SEF AV-21KJ1SNF AV-21KJ1SPF

PAL / NTSC 3.58 / NTSC 4.43 PAL / SECAM / NTSC 3.58 /

BG : S01-S41 & S75-S79 BG : S01-S41 & S75-S79

Content

NTSC 4.43

L : S01-S41 & S75-S77

1-2 (No.52135)

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 fea-

tures are identified by shading on the schematics an d 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 applied to the picture tube must conform

with that specified in Service manual. Excessive high voltage can cause an increase in X-Ray emission, arcing and possible component damage, therefore operation u nder 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.52135)1-3

SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

2.1 21-pin Euro connector (SCART) : AV-1 (AV-1S) Pin No. Signal Designation Matching Value AV-1 (AV-1S)

1 AUDIO R output 500mV(rms) (Nominal), Low impedance Used 2 AUDIO R input 500mV(rms) (Nominal), High impedance Used (R1) 3 AUDIO L output 500mV(rms) (Nominal), Low impedance Used 4 AUDIO GND --- Used 5 GND (B) --- Used 6 AUDIO L input 500mV(rms) (Nominal), High impedance Used (L1) 7 B input 700mV(B-W), 75 Ω Used 8 FUNCTION SW

(SLOW SW)

9 GND (G) --- Used 10 SCL / T-V LINK --- Not used 11 G input 700mV(B-W), 75 Ω Used 12 SDA3 --- Not used 13 GND (R) --- Used 14 GND (YS) --- Used 15 R / C input R : 700mV(B-W), 75 Ω

16 Ys input

(FAST SW) 17 GND (VIDEO output) --- Used 18 GND (VIDEO input) --- Used 19 VIDEO output 1V 20 VIDEO / Y input 1V 21 COMMON GND --- Used

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

C : 300mV Low : 0V-0.4V, 75 Ω

High : 1V-3V, 75 Ω

(Negative sync), 75 Ω Used

(P-P)

(Negative sync), 75 Ω Used

(P-P)

, 75 Ω

Used

Used (R)

Used

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

[Pin assignment]

20 18 16 14 12 10 8 6 4 2

21 19 17 15 13 11 9 7 5 3 1

1-4 (No.52135)

2.2 FEATURES

• It is a remote controlled color television.

• 100 programs from VHF, UHF bands or cable channels can be preset.

• It can tune cable channels.

• Controlling the TV is very easy by its menu driven system.

• It has an Euroconnector sockets for external device (such as video recorder, video games, audio set, etc.)

• Front AV Input available.

• Teletext

2.3 MAIN DIFFERENCE LIST

Part Name [/A models] [/B models]

Model name AV-21KJ1SEF/A

AV-21KJ1SNF/A AV-21KJ1SPF/A

PICTURE TUBE VE-LG320X65 VE-THO13X191

Part Name AV-21KJ1SEF AV-21KJ1SNF AV-21KJ1SPF

MAIN PWB ASSY VE-20121217 [/A]

VE-20129868 [/B] INSTRUCTION BOOK VE-50036407 VE-50036405 VE-50036406 RATING LABEL VE-20122454 VE-201 22401 VE-20122464 CARTON BOX VE-50036440 VE-50036437 VE-20116664

• It is possible to connect headphone.

• Direct channel access.

• APS (Automatic Programming System).

• All programs can be named.

• Forward or backward automatic tuning.

• Sleep timer.

• Automatic sound mute when no transmission.

• 5 minutes after the broadcasting (closedown), the TV switches itself automatically to stand-by mode.

AV-21KJ1SEF/B AV-21KJ1SNF/B AV-21KJ1SPF/B

VE-20117567 [/A] VE-20129871 [/B]

VE-20121219 [/A] VE-20129884 [/B]

(No.52135)1-5

SECTION 3

DISASSEMBLY

3.1 DISASSEMBLY PROCEDURE

3.1.1 REMOVING THE REAR COVER

(1) Unplug the power cord. (2) Remove the 7 screws [A] as shown in the Fig. 1. (3) Withdraw the REAR COVER toward you.

3.1.2 REMOVING THE MAIN PWB

• Remove the REAR COVER. (1) Slightly raise the both sides of the chassis by han d and

withdraw the MAIN PWB backward. (If necessary, take off the wire clamp, connectors etc.)

3.1.3 REMOVING THE SPEAKER

• Remove the REAR COVER. (1) Remove the 4 screws [B], and remove speaker as shown

in Fig. 1. (2) Remove the speaker. (3) Remove the other side speaker by same procedure.

3.1.4 REMOVING THE FRONT AV PWB

• Remove the REAR COVER.

• Remove the MAIN PWB. (1) Remove the 2 screws [C] as shown in Fig. 1. (2) Remove the FRONT AV PWB.

3.1.6 CHECKING THE PW BOARD

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

PWB).

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

the back side of the PW Board.

3.1.7 CAUTION

• When erecting the PW Board, 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.

3.1.8 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 sure to tie the wires with a new cable tie.

3.1.5 REMOVING THE HEADPHONE PWB

• Remove the REAR COVER.

• Remove the MAIN PWB. (1) Remove the 1 screw [D] as shown in Fig. 1. (2) Remove the HEADPHONE PWB.

1-6 (No.52135)

(X7)

CRT

REAR COVER

MAIN PWB

(X4)

FRONT AV PWB

(X2)

(X4)

SPEAKER

(X1)

HEADPHONE PWB

FRONT CABINET

Fig.1

(No.52135)1-7

3.2 REPLACEMENT OF CHIP COMPONENT

3.2.1 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.

3.2.2 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.

3.2.3 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.

1-8 (No.52135)

(4) Then solder leads B and C.

3.3 REPLACEMENT OF MEMORY IC

3.3.1 MEMORY IC

This model use a memory IC. This memory IC stores data for proper operation of the video and deflection circuits. When replacing, be sure to use an IC containing this (initial value) data.

3.3.2 PROCEDURE FOR REPLACING MEMORY IC

1. Power off

Switch the power off and unplug the power cord from the outlet.

2. Replace IC.

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

3. Power on

Plug the power cord into the outlet and switch the power on.

4. SERVICE MENU setting

(1) Press [MENU] key and, while the displayed MENU

screen, press [4], [7], [2], [5] key on the remote control unit or press [MUTING] key and [INFORMATION] key at

the simultaneously. (2) The SERVICE MENU screen of Fig. 1 will be displayed. (3) Verify what to set in the SERVICE MENU, and set

whatever is necessary (Fig.1). Refer to the SERVICE

ADJUSTMENT for setting. (4) Press the [STANDARD] key to exit SERVICE MENU.

5. Receive channel setting

Refer to the OPERATING INSTRUCTIONS (USER'S GUIDE) and set the receive channels (Channels Preset) as described.

MUTING

SERVICE MENU

AK30-JVC ***

OSD IF1 IF2 IF3 IF4 AGC VLIN

VS1A VS1B

VP1

: 1 1 AVL

Fig.1

SERVICE MENU SELECT KEY

POWER

6. User settings

Check the user setting items according to after page. Where these do not agree, refer to the OPERATING INSTRUCTIONS (USER'S GUIDE) and set the items as described.

INFORMATION

ITEM SELECT ( )

Fig.2

NUMBER

STANDARD

COLOUR

VAL UE SELECT (+)

VAL UE SELECT (-)

(No.52135)1-9

3.4 SETTING OF THE LAST MEMORY FOR SHIPMENT

3.4.1 USER SETTING VALUES Setting Item Setting Value Setting Item Setting Value

SOUND MENU FEATURE MENU

BALANCE CENTER SLEEP TIMER OFF

BASS CENTER CHILD LOCK OFF

TREBLE CENTER LANGUAGE ENGLISH

MODE MONO INSTALL

EFFECT OFF PROGRAMM E Refer to the INSTRUCTION

PICTURE MENU BAND

BRIGHTNESS These adjust are automatically

CONTRAST STANDARD

COLOUR SEARCH

SHARPNESS FINE TUNING

HUE(only NTSC) STORE

MODE AUTO

3.4.2 SETTING APS BIT IN SERVICE MENU

(1) Enter service menu in TV mode by pressing "INFORMATION" and "MUTING"keys simultaneously. Service Menu will appear. (2) Select TX1(TELETEXT OPTION) by pressing Up/Down keys on remote control unit. (3) Press the 7 key on remote control unit to set APS bit. (After this, bit 7 of TX1 will be "1") (4) Press STANDARD key on remote control unit to exit service mode.

NOTE :

DO NOT TURN OFF THE TV BY USING POWER BUTTON ON THE FRONT PANEL.

restored when APS bit in Service menu is set. The procedure for setting APS bit is described below.

CHANNEL

BOOK.

1-10 (No.52135)

SECTION 4

ADJUSTMENT

4.1 ADJUSTMENT PREPARATION

(1) You can make the necessary adjustments for this unit with

either the Remote Control Unit or with the adjustment tools and parts as given below.

(2) Adjustment with the Remote Control Unit i s made on the

basis of the initial setting values, however, the new setting values which set the screen to its optimum condition may

differ from the initial settings. (3) Make sure that AC power is turned on correctly. (4) Turn on the power for set and test equipment before use,

and start the adjustment procedures after waiting at least

30 minutes. (5) Unless otherwise specified, prepare the most suitab le re-

ception or input signal for adjustment. (6) Never touch any adjustment parts w hich are not specified

in the list for this adjustment - variable resistors, transform-

ers, condensers, etc. (7) Presetting before adjustment.

Unless otherwise specified in the adjustment instructions,

preset the following functions with the remote control unit:

BRIGHTNESS CENTER CONTRAST COLOUR SHARPNESS

4.2 ADJUSTMENT EQUIPMENT

(1) DC voltmeter (or digital voltmeter) (2) Signal generator (Pattern generator)

[PAL / SECAM / NTSC]

(3) Remote control unit

4.3 ADJUSTMENT ITEM

• FOCUS ADJUSTMENT

• SCREEN ADJUSTMENT

• OSD HORIZONTAL POSITION ADJUSTMENT

• IF ADJUSTMENT

• AGC AUTOMATICALLY ADJUSTMENT

• DEFLECTION CIRCUIT ADJUSTMENT

• WHITE BALANCE ADJUSTMENT

4.4 ADJUSTMENT LOCATIONS

FRONT

FRONT AV PWB

SIDE

HEADPHONE PWB

TOP

IC500 EEP ROM

IC501 MICOM

TUNER

LED

REMOCON RECEIVER

IC403

PL405

FRONT

CH. / PROG.

PL302

IC700

(+) (-)(+) (-)

VOL.

DEG COIL

POWER CORD

HVT

MAIN

FUSE

12.5A

MAIN PWB

FBT

SCART

CRT SOCKET PWB MAIN PWB

PL602

UPPER:FOCOUS LOWER:SCREEN

(No.52135)1-11

4.5 BASIC OPERATION OF SERVICE MENU

4.5.1 HOW TO ENTER SERVICE MENU

(1) Press the MENU key. (2) MENU screen of (fig.1) will be displayed.

MENU SCREEN

SERVICE MENU SELECT KEY

PICTURE

FEATURE

INSTALL. PROGRAM.

Fig.1

(3) While the MENU screen is displayed , press the [4], [7], [2],

[5] key or [INFORMATION] key and [MUTING] key simultaneously.

(4) The SERVICE MENU screen of (Fig.2) will be displayed.

SERVICE MENU SCREEN

AK30-JVC ***

OSD IF1 IF2 IF3 IF4 AGC VLIN

VS1A VS1B

VP1

: 1 1 AVL

MUTING

INFORMATION

ITEM SELECT ( )

Fig.3

POWER

NUMBER

STANDARD

COLOUR

VAL UE SELECT (+)

VAL UE SELECT (-)

ADJUSTMENT ITEM SETTING VALUE

Fig.2

4.5.2 SELECTION OF ADJUSTMENT ITEMS

(1) Enter the SERVICE MENU (2) Press the [/] key and select the ADJUSTMENT ITEM. (3) Press the [/] key and set the SETTING VALUE.

4.5.3 HOW TO EXIT SERVICE MODE

(1) Press the [STANDARD] Key on REMOTE CONTROL

UNIT.

1-12 (No.52135)

4.5.4 ADJUSTMENT ITEM ADJUSTMENT ITEM DESCRIPTION

OSD OSD Horizontal Position IF1 IF Coarse Adjust IF2 IF Fine Adjust IF3 IF Coarse Adjust for L-Prime IF4 IF Fine Adjust for L-Prime AGC Automatic Gain Control VLIN Vertical Linearity VS1A Vertical Size for 50 Hz / 4:3 VS1B Vertical Size for 50 Hz / 16:9 VP1 Vertical Position for 50 Hz HP1 Horizontal Position for 50 H VS2A Vertical Size for 60 Hz / 4:3 VS2B Vertical Size for 60 Hz / 16:9 VP2 Vertical Position for 60 Hz HP2 Horizontal Position for 60 Hz RGBH RGB Horizontal Shift Offset WR White Point Adjust for RED WG White Point Adjust for GREEN WB White Point Adjust for BLUE BR Bias for RED BG Bias for GREEN APR APR Threshold BRI Brightness CON Contrast COL Colour SHA Sharpness HUE Hue VOL Volume WR-R White Point Adjust for RED (RGB mode) WG-R White Point Adjust for GREEN (RGB mode) WB-R White Point Adjust for BLUE (RGB mode) FMP1 FM Prescaler when AVL is OFF NIP1 NICAM Prescaler when AVL is OFF SCP1 SCART Prescaler when AVL is OFF FMP2 FM Prescaler when AVL is ON NIP2 NICAM Prescaler when AVL is ON SCP2 SCART Prescaler when AVL is ON F1H High Byte of crossover frequency for VHF1-VHF3 F1L Low Byte of crossover frequency for VHF1-VHF3 F2H High Byte of crossover frequency for VHF3-UHF F2L Low Byte of crossover frequency for VHF3-UHF BS1 Band Switch Byte for VHF1 BS2 Band Switch Byte for VHF3 BS3 Band Switch Byte for UHF CB Control Byte OP1 Peripheral Options OP2 Recep tion Standard Options OP3 Video Options OP4 TV Features OP5 Channel Tables TX1 Teletext Options

(No.52135)1-13

4.6 ADJUSTMENT PROCEDURE

4.6.1 FOCUS / SCREEN ADJUSTMENT

Item

FOCUS adjustment

Measuring

instrument

Signal generator

Test point Adjustment part Description

Remote control unit

FOCUS VR [On the FBT]

(1) Receive a PAL cross-hatch signal. (2) Adjust FOCUS VR on the FBT as thin as possible.

FOCUS VR

SCREEN VR

FBT

SCREEN adjustment

Remote control unit

4.6.2 OSD ADJUSTMENT

Item

HORIZONTAL POSITION OF

Measuring

instrument

Remote control unit

OSD adjustment

SERVICE MENU SCREEN

SCREEN VR [On the FBT]

(1) Enter the SERVICE MENU. (2) Press the [YELLOW] key to disable vertical scan. (3) Adjust SCREEN VR. on the FBT as thin as possible. (4) Press [YELLOW] key again to enable vertical scan. (5) Press [STANDARD] key to leave service menu.

FOCUS VR

SCREEN VR

FBT

Test point Adjustment part Description

OSD (1) Enter the SERVICE MENU.

(2) Select OSD with the [/] key. (3) Adjust the OSD horizontal position with the [/]

key, which shifts the reference bar on the bottom of the SERVICE MENU horizontally, so that the OSD is positioned on the screen center. (X=X')

1-14 (No.52135)

AK30-JVC ***

OSD IF1 IF2 IF3 IF4 AGC VLIN VS1A VS1B VP1

: 1 1 AVL

XX'

Screen size

Reference ba

4.6.3 IF ADJUSTMENT

Item

Measuring instrument

Test point Adjustment part Description

IF adjustment Remote

control unit

4.6.4 AGC AUTOMATICALLY ADJUSTMENT

Item

AGC AUTOMATICALLY

Measuring instrument

Remote control unit

Test point Adjustment part Description

adjustment

IF 1 IF 2 IF 3 IF 4

(1) Receive a PAL colour bar pattern. (2) Enter the SERVICE MENU. (3) Select IF 1 with the [/] key (4) Press [BLUE] key during IF 1 is highlighted, IF 1 and

IF 2 values are adjusted automatically by software.

(5) If the standard is L-p rime, IF 3 and IF 4 values are

adjustment automatically when [BLUE] key is pressed during IF 1 is highlighted.

AGC (1) Enter the SERVICE MENU.

(2) Receive a 60dBmV RF signal level. (3) Select AGC with the [/] key. (4) Press [BLUE] key on the remote control unit. (5) Then the adjustment will be done automatically by

software.

(6) See the AGC indica tor on SERVICE MENU, it must

be "1".

(7) Check that picture is normal at 90dBmV signal level.

AK30-JVC ***

OSD

IF1 IF2 IF3 IF4 AGC VLIN VS1A VS1B VP1

: 1 1 AVL

4.6.5 DEFLECTION CIRCUIT ADJUSTMENT

Item

VERTICAL LINEARITY

Measuring instrument

Signal generator

Test point Adjustment part Description

adjustment

Remote control unit

IF INDICATOR AGC INDICATOR NONE

: 1 1

VLIN (1) Receive a PAL B/G circle pattern.

(2) Enter the SERVICE MENU. (3) Select VLIN with the [/] key. (4) Adjust VLIN with the [/] key until circle as round

as possible.

(No.52135)1-15

Item

VERTICAL SIZE adjustment (50Hz, 4:3)

Very close

Measuring

instrument

Signal generator

Remote control unit

Test point Adjustment part Description

VS1A (1) Receive a PAL B/G cross-hatch pattern of vertical

frequency 50Hz. (2) Enter the SERVICE MENU. (3) Select VS1A (Vertical size) with the [/] key. (4) Adjust VS1A with the [/] key until the horizontal

black lines on both the upper and lower horizontal

sides of picture size and nearly about to disappear. (5) Check and readjust VS1A item if the adjustment

becomes improper after some other geometric

adjustments are done.

Screen

size

Very close

VERTICAL SIZE adjustment (50Hz, 16:9)

16:9

format

Screen

size

VERTICAL POSITION adjustment (50Hz)

Signal generator

Remote control unit

Signal generator

Remote control unit

16:9 SCREEN

Picture size 100%

VS1B (1) Receive a PAL B/G cross-hatch pattern of vertical

frequency 50Hz. (2) Enter the SERVICE MENU. (3) Press the [GREEN] to switch to 16:9 screen mode. (4) Select VS1B (Vertical size) with the [/] key. (5) Adjust VS1B with the [/] key until the screen

become 16:9 format. (6) Check and readjust VS1B item if the adjustment

becomes improper after some other geometric

adjustments are done.

Picture

size

100%

VP1 (1) Receive a PAL B/G circle pattern signal of vertical

frequency 50Hz. (2) Enter the SERVICE MENU. (3) Select VP1 (Vertical position) with the [/] key. (4) Adjust VP1 with the [/] key until the circle pattern

is vertically centered. (A=B) (5) Check and readjust VP1 item if the adjustment

becomes improper after some other geometric

adjustments are done.

1-16 (No.52135)

Item

HORIZONTAL POSITION adjustment (50Hz)

Measuring instrument

Signal

Test point Adjustment part Description

HP1 (1) Re ceive a PAL B/G circle pattern signal of vertical

generator Remote

control unit

frequency 50Hz. (2) Enter the SERVICE MENU. (3) Select HP1 (Horizontal position) with the [/] key. (4) Adjust HP1 with the [/] key until the circle pattern

is horizontally centered. (C=D) (5) Check and readjust HP1 item if the adjustment

becomes improper after some other geometric

adjustments are done.

VERTICAL SIZE adjustment (60Hz, 4:3)

Very close

Screen

size

Very close

VERTICAL SIZE adjustment (60Hz, 16:9)

16:9

format

Screen

size

Signal generator

Remote control unit

Signal generator

Remote control unit

16:9 SCREEN

VS2A (1) Receive a PAL B/G cross-hatch pattern of vertical

frequency 60Hz. (2) Enter the SERVICE MENU. (3) Select VS2A with the [/] key. (4) Adjust VS2A with the [/] key until the horizontal

black lines on both the upper and lower part of the

pattern become very close to the upper anr lower

horizontal sides of picture size and nearly about to

disappear. (5) Check and readjust VS2A item if the adjustment

becomes improper after some other geometric

Picture size 100%

adjustments are done.

VS2B (1) Receive a PAL B/G cross-hatch pattern of vertical

frequency 60Hz. (2) Enter the SERVICE MENU. (3) Select VS2B with the [/] key. (4) Press [GREEN] key to switch to 16:9 screen mode. (5) Adjust VS2B with the [/] key until the screen

become 16:9 format. (6) Check and readjust VS2B item if the adjustment

becomes improper after some other geometric

adjustments are done.

Picture

size

100%

(No.52135)1-17

Item

VERTICAL POSITION adjustment (60Hz)

Measuring

instrument

Signal generator

Remote control unit

Test point Adjustment part Description

VP2 (1) Receive a PAL B/G circle pattern signal of vertical

frequency 50Hz. (2) Enter the SERVICE MENU. (3) Select VP2 (Vertical position) with the [/] key. (4) Adjust VP2 with the [/] key until the circle pattern

is vertically centered. (A=B) (5) Check and readjust VP2 item if the adjustment

becomes improper after some other geometric

adjustments are done.

HORIZONTAL POSITION adjustment (60Hz)

RGB MODE HORIZONTAL SHIFT OFFSET adjustment

Signal generator

Remote control unit

HP2 (1) Receive a PAL B/G circle pattern signal of vertical

Signal generator

Remote control unit

RGBH (1) Input R/G/B circle pattern signal via video input

frequency 50Hz. (2) Enter the SERVICE MENU. (3) Select HPOS (Horizontal position) with the [/]

key. (4) Adjust HP2 with the [/] key until the circle pattern

is horizontally centered. (C=D) (5) Check and readjust HP2 item if the adjustment

becomes improper after some other geometric

adjustments are done.

terminal. (2) Press [AV] key on the remote contro l unit, force the

TV to RGB mode. (3) Enter the SERVICE MENU. (4) Select RGBH with the [/] key. (5) Adjust RGBH with the [/] key until the circle

pattern is horizontally centered. (E=F) (6) Check and readjust RGBH item if the adjustment

becomes improper after some other geometric

adjustments are done.

1-18 (No.52135)

4.6.6 WHITE BALANCE ADJUSTMENT

Item

WHITE BALANCE adjustment (Low light)

WHITE BALANCE adjustment (High light)

Measuring instrument

Signal generator

Remote control unit

Signal generator

Remote control unit

Test point Adjustment part Description

WR WG WB

BR BG

(1) Receive a black & white signal (colour off). (2) Enter the SERVICE MENU. (3) Select WR / WG / WB with the [/] key

respectively.

(4) Adjust WR / WG / WB with the [/] key,

respectively, until the white part turns to pure white without any other colour.

(1) Receive a black & white signal (colour off). (2) Enter the SERVICE MENU. (3) Select BR / BG with the [/] key respectively. (4) Adjust BR / BG with the [/] key, respectively until

the white part of screen make white colour.

(No.52135)1-19

SECTION 5

TROUBLESHOOTING

This service manual does not describe TROUBLESHOOTING.

1-20 (No.52135)

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.52135)

Printed in Japan

WPC

AV-21KJ1SEF

ENGLISH

POLSKI

ÈESKY

MAGYAR

ÁÚËÃAPCKÈ

ROMANIAN

COLOUR TELEVISION

KOLOROWY ODBIORNIK TELEWIZYJNY BAREVNY TELEVIZOR SZÍNES TELEVÍZIÓ

ÖBETEH TEËEBÈÇOP

TELEVIZOR COLOR

INSTRUCTIONS

INSTRUKCJA OBSLUGI

PØ ÍRUÈKA K OBSLUZE

HASZNÁLATI UTASÍTÁSA

PÚKOBOÄCTBO ÇA PAÁOTA

INSTRUCÞIUNI

Contents

Safety Precautions

Safety Precautions ................................................... 1

Remote Control Buttons .......................................... 2

Control Panel Buttons .............................................. 3

Antenna Connections ...............................................3

Preparation ................................................................ 4

Features .......................................................................... 4

Before Switching on your TV .................................. 4

Power connection............................................................. 4

Aerial Connections ........................................................... 4

How to connect the external equipments .......................... 4

Inserting batteries in the remote control handset .............. 4

Switching the TV ON/OFF ........................................4

To switch the TV on.......................................................... 4

To switch the TV off .......................................................... 4

Initial Settings ...........................................................4

Operating with the onset buttons ...................................... 5

Operating with Remote Control ......................................... 5

Menu System .............................................................5

Picture Menu ................................................................... 5

Feature Menu ................................................................... 6

Install. Menu .................................................................... 7

Program. (Programming) Menu ........................................ 7

Other Features.......................................................... 8

Sound Mute ..................................................................... 8

Information on Screen ...................................................... 8

To Display the Time.......................................................... 8

Standard .......................................................................... 8

VCR Control Buttons ........................................................ 8

Teletext...................................................................... 9

To operate Teletext ........................................................... 9

To select a page of Teletext.............................................. 9

To Select Index Page ....................................................... 9

Searching for a teletext page while watching TV ............... 9

To Select Double Height Text ........................................... 9

To Reveal concealed Information .................................... 9

To Stop Automatic Page Change ...................................... 9

To Select a Subcode Page ............................................... 9

To exit Teletext ................................................................. 9

Connect the External Equipments ........................ 10

Via the Euroconnector..................................................... 11

AV-1 S Mode ................................................................... 11

Via the RCA jacks ........................................................... 11

Via the ANT (aerial) socket .............................................. 11

TV and Video Recoder (VCR) .......................................... 11

NTSC Playback .............................................................. 11

Connecting Headphones ................................................. 11

Tips........................................................................... 11

Specifications ..........................................................12

1. Power Source

The receiver should be operated only from a 220-240V AC, 50 Hz. outlet. Ensure you select the correct voltage setting

for your convenience.

2. Power Cord

The power supply cord should be placed so that they are not likely to be walked on or pinched by items placed upon them or against them. Pay particular attention to cord where they enter the plug, power outlet, and the point where they exit from the receiver.

3. Moisture and Water

Do not use this equipment in a humid and damp place (avoid the bathroom, the sink in the kitchen, and near the washing machine). Do not expose this equipment to rain or water and do not place objects filled with liquids on it as this may be dangerous.

4. Cleaning

Before cleaning, unplug the receiver from the main supply outlet. Do not use liquid or aerosol cleaners. Use with soft and dry cloth.

5. Ventilation

The slots and openings on the receiver are intended for ventilation and to ensure reliable operation. To prevent overheating, these openings must not be blocked or covered in anyway.

6. Lightning

In case of storm and lightning or when going on holiday, disconnect the power cord from the wall outlet.

7. Replacement Part

When replacement parts are required, be sure the service technician has used replacement parts which are specified by the manufacturer or have the same specifications as the original one. Unauthorized substitutions may result in fire, electrical shock, or other hazards.

8. Servicing

Please refer all servicing to qualified personnel. Do not remove cover as this may result in electric shock.

9. Flame sources

Do not place naked flame sources on the apparatus.

10. Stand-By

Do not leave your TV stand-by or operating condition when you leave your house.

Warning!

Any intervention contrary to regulations, in particular, any modification of high voltage or a replacement of the picture tube may lead to an increased concentration of x-rays. Any television modified in this way no longer complies with license and must not be operated.

Instructions for waste disposal:

Packaging and packaging aids are recyclable and should principally be recycled. Packaging materials, such as foil bag, must be kept away from children.

ENGLISH - 1 -

Remote Control Buttons

= Stand By / Power

0 - 9 = Direct Program

Standard Button (PICTURE default settings)

Colour Buttons

MENU = Menu Button

( ) = Cursor Up / Programme Up

( ) = Cursor Right / Volume +

Teletext Control Buttons

VCR Control Buttons

( ) = Cursor Down / Programme Down

( ) = Cursor Left / Volume -

AV = AV Button

= Information Button

= Mute

CAUTION

RISK OF ELECTRIC SHOCK

The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock of persons.

The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.

ENGLISH - 2 -

Control Panel Buttons

+HDGSKRQH

)5217$9

3RZHU 0HQX

9ROXPH

3URJUDP

Antenna Connections

$XGLR,QSXW 7HUP L QD O

9LGHR,QSXW 7HUPLQD O

ENGLISH - 3 -

Preparation

Place TV on a solid surface.

For ventilation, leave a space of at least 10 cm free all around the set. To prevent any fault and unsafe situations, please do not place any objects on top of the set.

Features

 It is a remote controlled colour television.

 100 programmes from VHF, UHF bands or cable channels

can be preset.

 It can tune cable channels.

 Controlling the TV is very easy by its menu driven system.

 It has an Euroconnector socket for external devices (such

as video recorder, video games, audio set, etc.)

 Front AV Input available.

 Teletext.

 It is possible to connect headphone.

 Direct channel access.

 APS (Automatic Programming System).

 All programmes can be named.

 Forward or backward automatic tuning.

 Sleep timer.

 Automatic sound mute when no transmission.

 5 minutes after the broadcasting (closedown), the TV

switches itself automatically to stand-by mode.

Before Switching on your TV

Power connection

Important: The TV set is designed to operate on 220-240 V AC, 50 Hz.

 After unpacking, allow the TV set to reach the ambient room

temperature before you connect the set to the mains.

Aerial Connections

 Connect the aerial plug to the aerial input socket located at

the back of the TV.

How to connect the external equipments

See Connect the External Equipments on page 10.

 See the instruction manuals provided with the external de-

vices too.

Inserting batteries in the remote control handset

 Remove the battery cover located on the back of the hand-

set by gently pulling upwards from the indicated part.

 Insert two AA (R6) or equivalent type batteries inside.

 Replace the battery cover.

NOTE: Remove batteries from remote control handset when it is not to be used for a long period. Otherwise it can be damaged due to any leakage of batteries.

Switching the TV ON/OFF

You can operate your TV either using the remote control handset or directly using the TV onset buttons.

To switch the TV on

Your TV will switch on in two steps: 1- Press the power button located on the front of the TV. Then

the TV switches itself to standby mode and the RED LED

located below the TV turns on. 2- To switch on the TV from stand-by mode either: Press a digit button on the remote control so that a program-

me number is selected, or, Press Standby / Power Button or Programme Up and Down

buttons on the front of the TV or on the remote control respectively, so the TV will switch on and the RED Led will turn GREEN.

To switch the TV off

 Press the stand-by button on the remote control, so the TV

will switch to stand-by mode and the GREEN LED will become RED, or,

 Press the power button located on the front of the TV.

Initial Settings

The message "PLEASE CHECK ANTENNA CABLE AUTO. PROGRAMMING SYSTEM" will be displayed when you turn

on your TV for the first time. 1- Select LANGUAGE with the   or   button, then

press the   or   button to select a menu language. 2- Select COUNTRY with the   or   button, then

press the   or   button to select the country you are

now located. 3- Select START with the   or   button, then press

the   button to start APS. APS (Automatic Programming System) automatically pro-

grammes the received channels in your TVs programme numbers. During APS, "A. P. S. IS RUNNING" will be dis- played. After APS is finalized, the PROGRAM. menu appears.

To cancel APS, press the   button.

You can delete a channel, insert a channel into a programme number, or re-start APS with the PROGRAM. menu.

For details, see Program. (Programming) Menu on page

4- Press the "STANDARD" button to complete the initial set-

tings.

After the initial settings are complete, you can change a programme number or to name a programme number or to programme new channel manually. For details, see Install. Menu on page 7.

If the message "PLEASE CHECK ANTENNA CABLE AUTO. PROGRAMMING SYSTEM" does not appear, follow the description Program. (Programming) Menu on page 7 to select a menu language and the country where you are now located, and to use A.P.S..

ENGLISH - 4 -

Operating with the onset buttons

Volume setting and programme selection can be made using the buttons on the front panel.

Volume Setting

 Press -  button to decrease volume or  + button to

increase volume, so a volume level scale will be displayed on the screen.

Programme Selecting

 Press P/CH+ button to select next programme or -P/CH

button to select the previous programme.

Entering Main Menu

 Press MENU button to enter main menu. In the main

menu select submenu using P/CH+ or -P/CH button and enter the submenu using  + or -  button. To learn the usage of the menus, refer to Menu System on page

Operating with Remote Control

The remote control handset of your TV is designed to control all the functions of the model you selected. The functions will be described in accordance with the menu system of your TV.

Functions which you can use out of menu system are described below.

Programme Selecting (direct access):

Press digit buttons on the remote control handset to select programmes between 0 and 9. TV will switch to the selected program after a short delay.

When you press first digit, second digit will be displayed with - symbol for 3 seconds. To select programmes between 10 and 99 press corresponding digit buttons consecutively before - symbol on the second digit disappears. (e.g. for programme 27, first press 2 and then 7 while program number displayed as 2- )

Menu System

Your TV has been designed with a menu system. Display

MENU (main menu) and enter one of four menus (PICTURE, FEATURE, INSTALL. and PROGRAM.).

1- Press MENU button to display MENU (main menu).

The menu titles will be displayed in the main menu.

2- Press   or   button to select a menu title, then

press   or   button to enter the menu.

 To exit a menu, press STANDARD button.

 To go to the previous menu, press MENU button.

Picture Menu

To change picture settings:

 Press MENU button, now you are in main menu. In the

main menu, select PICTURE using   or   button,

then enter the picture menu pressing   or   button.

or,

 Enter the Picture Menu directly, pressing the GREEN but-

ton.

Setting Brightness:

 As you enter the picture menu, BRIGHTNESS will be the

first selected option.

 Press   button to increase BRIGHTNESS.

 Press   button to decrease BRIGHTNESS.

Volume Setting

Press   button to increase volume.

Press   button to decrease volume.

Programme Selecting (Previous or next programme)

 Press   button to select the previous programme.

 Press   button to select the next programme.

ENGLISH - 5 -

Setting Contrast:

 Using   or   button select CONTRAST.

 Press   button to increase CONTRAST level.

 Press   button to decrease CONTRAST level.

Setting Colour:

 Using   or   button select COLOUR.

 Press   button to increase COLOUR level.

 Press   button to decrease COLOUR level.

Setting Sharpness:

 Using   or   button select SHARPNESS.

 Press   button to increase SHARPNESS level.

 Press   button to decrease SHARPNESS level.

Setting Hue (In AV mode only) :

Feature Menu

 Press MENU button, now you are in main menu. In the

main menu, select FEATURE, using   or   button. Then enter the feature menu pressing   or   button.

or,

 Enter the Feature Menu directly, pressing the YELLOW

button.

Sleep Timer:

 As you enter the feature menu, SLEEP TIMER will be the

first selected option.

 Use 

between OFF, 0:15:00, 0:30:00, 0:45:00, 1:00:00, 1:15:00, 1:30:00, 1:45:00 and 2:00:00. hours. Your TV will get into standby mode when the period you selected passes after you make the selection.

It is displayed on the upper right of the screen. If sleep timer is activated it is displayed with the TV status and erased with it after 3 seconds.

 or   button to change the value of the sleep timer

 Using   or   button select HUE.

 Press   button to increase HUE level.

 Press   button to decrease HUE level.

HUE adjust is functional only when NTSC 3.58/4.43 is applied in AV mode. It does not appear when other colour systems used.

Mode:

This option is used to change the picture size according to the coming transmission.

 If AUTO function is selected, then the picture size will be

automatically changed according to the transmission.

 Selecting 4 : 3 mode forces picture ratio size to 4 : 3.

 Selecting 16 : 9 mode forces picture ratio size to 16 : 9.

Every program has its own picture mode setting. When you store the picture mode for a program other programs keep their picture mode setting unaffected.

During the last minute of the count down, the timer is displayed on the upper right of the screen. When the timer reaches zero, TV goes to stand-by.

Child Lock:

In Feature Menu, press   or   button to select CHILD LOCK. Using   or   button turn CHILD LOCK On or Off.

When Off is selected, there will be no difference in the operation of your TV. When On is selected, the TV can only be controlled by the remote control handset. In this case, the front panel buttons (except the Switch On/Off button) will not work.

Language:

Menu Language can be selected by pressing   or   button on LANGUAGE item.

ENGLISH - 6 -

+ 65 hidden pages