JVC AV21MS3 Service Manual

SERVICE MANUAL

FLAT COLOUR TELEVISION

YA32820058

AV-21MS30/N

BASIC CHASSIS

CW2

EXIT

RM-C1286

TABLE OF CONTENTS

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

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

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

4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12

5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29

No.YA328

2005/8

SPECIFICATION

Items Contents

Dimensions (W × H × D) 64.9cm × 46.53cm × 46.92cm

Mass 23.5kg

TV RF System B, G, I, D, K, M

Colour System TV Mode

Video Mode

Stereo System A2 (B/G) / NICAM (B/G, I, D/K)

Teletext system FLOF (Fastext)

Receiving Frequency VHF Low

VHF High

Intermediate Frequency

Colour Sub Carrier Frequency 4.43MHz (PAL), 4.40MHz/4.25MHz (SECAM), 3.58MHz/4.43MHz (NTSC)

Aerial Input Terminal 75Ω unbalanced, coaxial

Power Input AC110V ~ AC240V, 50Hz / 60Hz

Power Consumption 112W (Max.) / 80W (Avg.)

Picture Tube 21-inch, aspect ratio 4:3, flat square face type, tinted

Screen Size Visible size : 51.0cm (Diagonal) / 41.6cm × 31.5cm (H × V)

High Voltage 29kV±1.5kV (at zero beam current)

Speaker 6.5cm × 13cm, Oval type × 2

Audio Output 7W + 7W

Video / Audio Input (1/2/3)

Video / Audio Output Video 1V(p-p), 75Ω, RCA pin jack × 1

Headphone 3.5mm stereo mini jack × 1

Remote Control Unit RM-C1286-1H

S-Video [1] Mini-DIN 4 pin × 1

Video [1/2/3] 1V(p-p), negative sync, 75Ω, RCA pin jack × 3 Audio [1/2/3] 500mV(rms) (-4dBs ), high impedance, RCA pin jack × 6

Component

Video [2]

PAL / SECAM / NTSC3.58 / NTSC4.43 PAL / SECAM / NTSC3.58 / NTSC4.43

WST (World Standard Text)

46.25MHz ~ 140.25MHz (AS0 ~ S6)

147.25MHz ~ 423.25MHz (S7 ~ S36)

UHF

431.25MHz ~ 863.25MHz (S37 ~ C57)

CATV

Mid : X ~ Z, S1 ~ S10 Super: S11 ~ S20 Hyper: S21 ~ S41

VIF 38.0MHz

SIF D/K: 31.5MHz (6.5MHz)

[NICAM: 32.15MHz (5.85MHz)] I: 32.0MHz (6.0MHz) [NICAM: 31.45MHz (6.55MHz)] B/G: 32.5MHz (5.5MHz) [A2: 32.26MHz (5.74MHz)] [NICAM: 32.15MHz (5.85MHz)] M: 33.5MHz (4.5MHz)

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

RCA pin jack × 3 Y:1V(p-p), positive (negative sync), 75Ω Cb/Cr:0.7V(p-p), 75Ω

Audio 500mV(rms)(-4dBs), Low impedance (400Hz when modulated 100%), RCA pin jack × 2

(AA/R06/UM-3 battery × 2)

Design & specifications are subject to change without notice.

1-2 (No.YA328)

SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

2.1 FEATURES

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

• Pure flat CRT produces fine textured picture in every detail.

• Wide range voltage (110V ~ 240V) for AC power input.

• With AUDIO/VIDEO/S-VIDEO/COMPONENT input terminals.

C bus control utilizes single chip ICs.

•I

• By means of AUTO PROGRAM, the TV stations can be selected automatically and the TV channels can also be rearranged automatically.

• Built-in DIGITAL ECO MODE (ECONOMY, ECOLOGY). In accordance with the brightness in a room, the brightness and/or contrast of the picture can be adjusted automatically to make the optimum picture which is easy on the eye.

• Built-in OFF TIMER & RETURN +.

1-4 (No.YA328)

2.2 MAIN CPU [MAIN PWB : IC701] PIN FUNCTION

Pin No.

1VssP2 -GND 2 VssC4 - GND 3 V1.8C4 I 1.8V (Digital) 4 V3.3A3 I 3.3V 5 VrefP_Sdac I 3.3V (Positive) 6 VrefN_Sdac - GND 7 VrefP_Sdac I 3.3V (Negative) 8 VrefN_Sdac - GND

9 VrefP_Sdac I 3.3V (Positive) 10 XtalIn I 24.576MHz for system clock 11 XtalOut O 24.576MHz for system clock 12 VssA1 - GND 13 NECK I V-guard input/ I/O switch 14 CONT I 1.8V regulator control 15 V5P1 I +5V 16 Ph2 - Phase-2 filter 17 Ph1 - Phase-1 filter 18 Gnd1 - GND 19 SecPll - SECAM PLL decoupling 20 Dec8G - Bandgap decoupling 21 EW O East-West drive output 22 VDRB- O Vertical drive B output 23 VDRA+ O Vertical drive A output 24 Vif1 I Video IF input 1 25 Vif2 I Video IF input 2 26 Vsc - Vertical sawtooth capacitor 27 Iref I Reference current input 28 GndIF - GND 29 Sif1 I Sound IF input 1 30 Sif2 I Sound IF input 2 31 AGC O Tuner AGC output 32 EHT I EHT/overvoltage protection input 33 Ssif/RefIn/Avl/RefOut O

34 L3 I Audio-L3 input (left signal) 35 R3 I Audio-R3 input (right signal) 36 L-OUT O Audio L output 37 R-OUT O Audio R output 38 DecsDem - Decoupling sound demodulator 39

40 Gnd2 - GND 41 PllIf - IF-PLL loop filter 42 SifAgc - AGC sound IF 43 IfVo/FmRo/DvbO O Not used 44 NC O Not used 45 V8AudioSwitches I 8V 46 AgcSsif - AGC capacitor second sound IF 47 V5P2 I 5V 48 V-OUT O Video output 49 L1 I Audio-L1 input 50 R1 I Audio-R1 input 51 V3 I Video V3 input 52 C4 I Not used 53 Audio2InL I Not used 54 Audio2InR I Not used 55 V2/Y I Video V2 input 56 L2 I Audio L2 input (Left signal) 57 R2 I Audio R2 input (right signal) 58 Y3/Cvbs I S-Video Y1 input 59 C1 I S-Video C1 input 60 AudioLsL O Audio L output for audio power amplifier 61 AudioLsR O Audio R output for audio power amplifier 62 HP-L O Not used

Pin name I/O Function

Automatic Volume Levelling/ sound IF input / subcarrier reference output / external reference signal input for I signalmixer for DVB operation

QssO/AmO/AudeEm

O QSS intercarrier output / AM output /

deemphasis / (front-end audio out)

Pin No.

63 HP-R O Not used 64 CVBSO/PIP O CVBS / PIP output 65 SVM O Not used 66 FbiSo I Flyback input/sandcastle output 67 Hout O Horizontal output 68 VssComb - GND 69 V5Comb I 5V 70 Vin/R2/Pr I PIP R input 71 Uin/B2/Pb I PIP B input 72 Yin/G2/Y I PIP G input 73 Ysync I Not used 74 Yout O Not used 75 Uout/INSSW2 I YUV insertion input 76 NC O Not used 77 INSSW3 I YUV insertion input 78 R3/Pr I Component PR input (Video-2) 79 G3/Y I Component Y input (Video-2) 80 B3/Pb I Component PB input (Video-2) 81 Gnd3 - GND 82 V5P3 I 5V 83 BCL I Beam current limiter input 84 BLKIN I Black current input 85 Rout O R output 86 Gout O G output 87 Bout O B output 88 V3.3A1 I 3.3V 89 RefAdN - GND 90 V3.3RefAdP I 3.3V (Positive) 91 RefAd I 3.3/2V 92 GndA - GND 93 V1.8A I 1.8V 94 V3.3A2 I 3.3V 95 VssADC - GND 96 V1.8ADC I 1.8V 97 REMOTE I Remote control 98 PW_LED I POWER LED control

99 PW_LED I POWER LED control 100 V1.8C2 I 1.8V 101 VssC2 - GND 102 TIMER - Not used 103 TIMER - Not used 104 VER_PROTECT O X-ray protect 105 S_REDUCE O Sound control 106 P00/I2SDI1 O Not used 107 POWER O SUB POWER control 108 SCL1 I I2C bus clock 109 SDA1 I/O I2C bus data 110 V3.3P I 3.3V 111 ROTATION O Rotation 112 3.58/OTHER O NTSC 3.58 detection 113 A_MUTE O Audio muting 114 4.5/OTHER O NTSC 4.43 detection 115 PROT I Protect 116 ECO_IN I ECO sensor level detection 117 V1.8C1 I 1.8V (Digital) 118 DecV1V8 I 1.8V 119 KEY_IN I Key scan data 120 VDO-DET I Video DET input 121 VSSC1+P1 - Digital GND 122 S_V_DET I S-Video DET input 123 P25/PWM4 O GTVA_reset 124 V1.8C3 I 1.8V (Digital) 125 VssC3 - GND 126 P12/Int2 I External interrupt 127 SDA0 I/O I2C bus data (for memory) 128 SCL0 I I2C bus clock (for memory)

Pin name I/O Function

(No.YA328)1-5

SECTION 3

DISASSEMBLY

3.1 DISASSEMBLY PROCEDURE

3.1.1 REMOVING THE REAR COVER

• Unplug the power cord. (1) Remove the 2 screws [A] , 7 screws [B] and 4 screws [C]

as shown in Fig.1.

(2) Withdraw the REAR COVER toward you.

CAUTION:

When reinstalling the rear cover, carefully push it inward after inserting the MAIN PWB into the REAR COVER groove.

3.1.2 REMOVING THE MAIN PW BOARD

• Remove the REAR COVER. (1) Slightly raise the both sides of the MAIN PWB by hand. (2) Withdraw the MAIN PWB backward.

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

3.1.3 REMOVING THE SPEAKER

• Remove the REAR COVER. (1) Remove the 2 screws [D] as shown in Fig.1. (2) Follow the same steps when removing the other hand

SPEAKER.

3.1.4 CHECKING THE MAIN PW BOARD

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

PW BOARD).

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

its back side.

CAUTIONS:

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

and other connectors are properly connected.

• When repairing, connect the DEG. COIL to the DEG.

connector on the MAIN PWB.

• When repairing, connect the DEG. COIL to the DEG.

connector on the MAIN PWB.

3.1.5 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.

1-6 (No.YA328)

PICTURE TUBE

FRONT CABINET

(x2)

SPEAKER

MAIN PWB (CRT SOCKET PWB)

SPEAKER

(x2)

MAIN PWB

FBT

(FRONT LED PWB)

MAIN PWB

(x7)

(x2)

REAR COVER

Fig.1

(x4)

(No.YA328)1-7

3.2 REPLACEMENT OF MEMORY IC

EXIT

3.2.1 MEMORY IC

This TV uses the following memory IC.

Memory IC: IC702 on MAIN PWB

The memory IC memorizes data for correctly operating the video and deflection circuits. When replacing the memory IC, be sure to use the same type IC written with the initial values of data. In other words, use the specific IC listed in "PRINTED WIRING BOARD PARTS LIST". For its mounting location, refer to "ADJUSTMENT LOCATIONS".

3.2.2 PROCEDURE FOR REPLACING MEMORY IC

1. Power off

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

2. Replacing the memory IC

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

3. Power on

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

4. Check and setting of SYSTEM CONSTANT SET:

(1) Press the [DISPLAY] key and the [PICTURE MODE] key

on the remote control unit simultaneously. The SERVICE MENU screen will be displayed.(See Fig.1.)

(2) In the SERVICE MENU, press the [DISPLAY] key and

[PICTURE MODE] key simultaneously. Then, the SYSTEM CONSTANT SET screen will be displayed.(See Fig.2.)

(3) Check whether the setting values of the SYSTEM

CONSTANT SET are the same as those indicated in Table 1. If the value is different, select the setting item with the MENU [] / [] key, and set the correct value with the MENU [] / [] key.

(4) Press the [DISPLAY] key twice to return to the normal

screen.

5. Receive channel setting

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

6. User setting

Check the user setting values in Table 2 and Table 3. If setting value is different, set the correct value. For setting, refer to the OPERATING INSTRUCTIONS.

7. Setting of SERVICE MENU

Verify the setting for each setting item in the SERVICE MENU.(See Table 4.) If readjustment is necessary, perform adjustment referring to "ADJUSTMENTS PROCEDURE".

NAME OF REMOTE CONTROL KEYS

SERVICE MENU

1. IF

3. AUDIO

5. VSM W/B

7. PLUG & PLAY (ON)

1-7 : SELECT DISPLAY : EXIT

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

2. V/C

4. DEF

6. S TATUS

Fig.1

SYSTEM CONSTANT-1

SYSTEM CONSTANT SET 1

SYSTEM COMB TILT SUPER BASS TEXT LANGUAGE

: SEL  : OPE

 

SYSTEM CONSTANT-2

SYSTEM CONSTANT SET 2

SOUND BILINGUAL BLUE BACK MUTE COLOUR AUTO ECO SENSOR

: SEL  : OPE

 

SYSTEM CONSTANT-3

SYSTEM CONSTANT SET 3

SURROUND

 

: SEL  : OPE

Fig.2

: MULTI

NO NO NO PAT ERCMI

DISP : EXIT

STEREO NO NO NO YES

DISP : EXIT

YES NOPICTURE BOOSTER YESCOMPONENT NOPIP YESS INPUT

DISP : EXIT

DISPLAY / BACK

1-8 (No.YA328)

PICTURE MODE

3.2.3 FACTORY SETTING VALUE

 SETTING OF SYSTEM CONSTANT SET

Setting item Setting content Setting value

SYSTEM

COMB

TILT

SUPER BASS

TEXT

LANGUAGE

SOUND

BILINGUAL

BLUE BACK MUTE

COLOUR AUTO

ECO SENSOR

SURROUND

PICTURE BOOSTER

COMPONENT

MULTI TRIPLE PAL THAI

YES NO

SINGLE NO PAT

E/R/C/M/I E/C

STEREO PB MONO

YES NO

MULTI

PAT

E/R/C/M/I

STEREO

YES

PIP

S INPUT

YES NO

Table 1

YES

(No.YA328)1-9

 SETTING OF BASIC FUNCTIONS

Setting item Setting value

POWER Off

SUB POWER On

VOLUME 15

INPUT TV

COLOR SYSTEM PAL

PICTURE MODE (VSM) BRIGHT

CINEMA SURROUND (RF)

OFF TIMER OFF

CHANNEL POSITION PR01

 SETTING OF MENU SCREEN

Setting item Setting value

VNR AUTO

COMPRESS (16:9) OFF

CHILD LOCK OFF

BLUE BACK ON

VIDEO-2 SET COMPONENT

AUTO PROGRAM

EDIT / MANUAL

LANGUAGE ENG

TEXT LANGUAGE GROUP-1

WHITE BALANCE (RF) COOL

BALANCE Centre

SOUND MODE (RF) MUSIC

AI VOLUME OFF

FAVORITE CH RED PR01

FAVORITE CH GREEN PR02

FAVORITE CH YELLOW PR03

FAVORITE CH BLUE PR04

AI ECO SENSOR OFF

AUTO SIGNAL DETECT ON

DVD PICTURE MODE OFF

TINT COLOR Centre

WHITE BALANCE (DVD) COOL

SOUND MODE (DVD) MUSIC

CINEMA SURROUND (DVD)

OFF

Table 2

Refer to OPERATING INSTRUCTIONS

OFF

Table 3

 SERVICE MENU SETTING ITEMS

Setting item Setting value

1. IF 1. VCO

2. DELAY POINT

2. V/C 1. SCREEN

2. CUTOFF(B/G)

3. WDR(R/G/B)

4. BRIGHT(TV/VDO 1/2/3)

5. CONT(TV/VDO 1/2/3/TV 16:9/VDO 16:9)

6. COLOUR(TV/VDO1/2/3/DVD)

7. TINT(TV/VDO 1/2/3)

8. SHARP [Do not adjust]

9. Y DELAY [Do not adjust]

10. TINT DVD [Do not adjust]

11. AMP T. SHARP

12. TWIN CONT.

3. AUDIO [Do not adjust]

4. DEF 1. V-SHIFT

5. VSM W/B (BRIGHT/STANDARD/SOFT)

(COOL/WARM/NORMAL)

6. STATUS [Display only]

7. PLUG & PLAY(ON) [Display only]

1. DCXO ADJ

2. NICAM lower ERRLIM

3. NICAM upper ERRLIM

4. A2 ID THR

5. MENU EQUALIZER

2. V-SLOPE

3. V-SIZE

4. H-CENT

5. H-SIZE

6. TRAPEZ

7. EW-PIN

8. COR-UP

9. COR-LO

10. ANGLE

11. BOW

12. V-S.CR

13. V-LIN

14. V-ZOOM

15. V-SCROLL

1. BRIGHT

2. CONT

3. COLOUR

4. SHARP

5. HUE

1. R DRIVE

2. G DRIVE

3. B DRIVE

1-10 (No.YA328)

Table 4

3.3 REPLACEMENT OF CHIP COMPONENT

3.3.1 CAUTIONS

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

3.3.2 SOLDERING IRON

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

3.3.3 REPLACEMENT STEPS

1. How to remove Chip parts

2. How to install Chip parts

[Resistors, capacitors, etc.]

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

alternately melt the solder at each end.

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

[Transistors, diodes, variable resistors, etc.]

(1) Apply extra solder to each lead.

SOLDER

[Resistors, capacitors, etc.]

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

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

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

[Transistors, diodes, variable resistors, etc.]

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

solder.

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

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

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

NOTE :

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

(4) Then solder leads B and C.

(No.YA328)1-11

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

equipment and parts as given below.

(2) Adjustment with the remote control unit is made on the basis of the initial setting values, however, the new setting

values used for setting 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 the set and test equipment before use, and start the adjustment procedures after waiting at least 30

minutes. (5) Unless otherwise specified, prepare the most suitable reception or input signal for adjustment. (6) Never touch any adjustment parts, which are not specified in the list for this variable resistors, transformers, trimmer capacitors,

etc.

4.2 PRESETTING BEFORE ADJUSTMENT

Unless otherwise specified in the adjustment instructions, preset the following functions with the remote control unit.

 User mode setting position

Setting item Setting value

PICTURE MODE (VSM) BRIGHT

VNR OFF

AI ECO SENSOR OFF

BALANCE Centre

CINEMA SURROUND OFF

COMPRESS (16:9) OFF

4.3 MEASURING INSTRUMENT AND FIXTURES

(1) DC voltmeter (or Digital voltmeter) (2) Oscilloscope (3) Signal generator (Pattern generator) [PAL/SECAM/NTSC] (4) Remote control unit

4.4 ADJUSTMENT ITEMS

 B1 VOLTAGE  FOCUS ADJUSTMENT  IF CIRCUIT ADJUSTMENTS

• IF VCO adjustment

• DELAY POINT (AGC TAKE-OVER) adjustment  VIDEO CIRCUIT ADJUSTMENTS

• WHITE BALANCE (Low light) adjustment

• WHITE BALANCE (High light) adjustment

• SUB BRIGHT adjustment

• SUB CONTRAST adjustment

• SUB COLOUR 1 adjustment

• SUB COLOUR 2 adjustment

• SUB TINT 1 adjustment

• SUB TINT 2 adjustment

 AUDIO SETTING

 DEFLECTION CIRCUIT ADJUSTMENTS

• V.SLOPE adjustment

• V.POSITION adjustment

• V.HEIGHT adjustment

• H.POSITION adjustment

• V. LINEARITY adjustment

• H. PARALLEL adjustment

• H.BOW adjustment

 VSM PRESET SETTING  PURITY AND CONVERGENCE ADJUSTMENTS

• PURITY adjustment

• STATIC CONVERGENCE adjustment

• DYNAMIC CONVERGENCE adjustment

1-12 (No.YA328)

4.5 ADJUSTMENT LOCATIONS

POWER CORD

DEG COIL

MAIN PWB ASS'Y

POWER SW

S901

DEG

MAIN PWB ASS'Y (FRONT LED)

CN10A

S805

CN00A

S804 S802

S803 S801

IC701

TOP

J808

J807

IC702

J806

J809

CN00S

FRONT

DEF YOKE

GND

J804J801 J802 J803

TU001

1. 5V

I2C

2. SCL0

3. SDA0

4. SCL1

5. SDA1

6. GND

CN00C

CN00X

1. B1

2. NC

3. X-RAY2

4. X-RAY1

5. GND

MAIN PWB ASS'Y (CRT SOCKET)

(SOLDER SIDE)

TP-47G/R

TP-47B

HVT

UPPER : FOCUS

LOWER : SCREEN

TOP

TP-47R/G

TP-E

CRT EARTH

(BRAIDED ASS'Y)

(No.YA328)1-13

4.6 BASIC OPERATION IN SERVICE MENU

Operate the SERVICE MENU with the remote control unit.

4.6.1 SERVICE MENU ITEMS

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

1. IF For entering/adjusting the setting values (adjustment values) of the IF circuit.

2. V/C For entering/adjusting the setting values (adjustment values) of the VIDEO circuit.

3. AUDIO For entering/adjusting the setting values (adjustment values) of the AUDIO circuit.

4. DEF For entering/adjusting the setting values (adjustment values) of the DEFLECTION circuit.

5. VSM W/B For setting the values of STANDARD, SOFT, BRIGHT and COOL, NORMAL, WARM.

6. STATUS This is not used for service.

7. PLUG & PLAY (ON) This is not used for service.

4.6.2 BASIC OPERATION IN SERVICE MENU

1. HOW TO ENTER SERVICE MENU

Press the [DISPLAY] key and the [PICTURE MODE] key on the remote control unit simultaneously. The SERVICE MENU screen will be displayed. (See Fig. 1 on the next page.)

2. SELECTION OF SUB MENU SCREEN

Press one of the keys 1 to 6 on the remote control unit, and select the SUB MENU SCREEN from the SERVICE MENU. (See Fig.1 on the next page.)

SERVICE MENU → SUB MENU

1. IF 5. VSM W/B

2. V/C 6. STATUS

3. AUDIO 7. PLUG & PLAY (ON)

4. DEF

3. METHOD OF SETTING

NOTES:

• Once the setting values are set, they are memorized automatically.

• It must not be adjusted without inputting a signal.

(1) 1. IF

[1.VCO ] : Under normal conditions, no adjustment is required.

(a) [1] key Select 1. IF. (b) [1] key Select 1. VCO. (c) [DISPLAY] key When this is pressed twice, you will return to the SERVICE MENU.

[2.DELAY POINT ]

(a) [1] key Select 1. IF. (b) [2] key Select 2. DELAY POINT. (c) MENU [] / [] key Adjust the setting value. (d) [DISPLAY] key When this is pressed twice, you will return to the SERVICE MENU.

(2) 2. V/C, 3. AUDIO and 4. DEF

(a) [2] ~[4] keys Select one from 2. V/C, 3. AUDIO and 4. DEF (b) MENU [] / [] key Select setting items. (c) MENU [] / [] key Adjust the setting values of the setting items.

Use the number keys on the remote control unit for setting the WHITE BALANCE. For the setting, refer to each item concerned.

(d) [DISPLAY] key When this is pressed, you will return to the SERVICE MENU.

(3) 5. VSM W/B

(a) [5] keys Select 5. VSM W/B. (b) MENU [OK] key Select preset items. (c) MENU [] / [] key Adjust setting items. (d) MENU [] / [] key Adjust the setting values of the setting items. (e) [DISPLAY] key When this is pressed, you will return to the SERVICE MENU.

(4) 6. STATUS

This is for display only.

(5) 7. PLUG & PLAY (ON)

This is not used for service.

4. Release of SERVICE MENU

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

1-14 (No.YA328)

4.6.3 SERVICE MENU FLOW CHART

SERVICE MENU

1. IF

3. AUDIO

5. VSM W/B

7. PLUG & PLAY (ON)

1-7 : SELECT DISPLAY : EXIT

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

2. V/C

4. DEF

6. STATUS

IF SERVICE MENU

1. VCO

2. DELAY POINT

V/C

1. SCREEN

1. IF

2. V/C

PAL

HBC

WBC

BRI

VCO (CW)

TOO HIGH ABOVE REFERENCE JUST REFERENCE BELOW REFERENCE TOO LOW

DELAY POINT

AGC TAKEOVER

Setting item

1. SCREEN(READ DATA)

2. CUTOFF (B/G)

** ** **

3. WDR (R/G/B)

4. BRIGHT (TV/VDO1/2/3)

5. CONT (TV/VDO1/2/3/TV 16:9/VDO16:9)

6. COLOUR (TV/VDO1/2/3/ DVD)

7. TINT (TV/VDO1/2/3)

8. SHARP (TV/VDO1/2/3) Y DELAY (TV/VDO1/2/3

/S-VDO)

10. TINT DVD

11. AMP T.SHARP

12. TWIN CONT.

*****

MHz

6. STATUS

STATUS

V/C STATUS

ECO EOF NOL VNR

****

ADC ECO =

COSMIC STATUS

*******

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

5. VSM W/B

VSM PRESET BRIGHT

1. BRIGHT

***

1. BRIGHT

2. CONT

3. COLOUR

4. SHARP

5.HUE

Setting item

1. R-DRIVE

2. G-DRIVE

3. B-DRIVE

3. AUDIO

AUDIO

1. DCXO ADJ. = NOT NICAM

0002

*******

0009

*******

000A

*******

4. DEF

DEF FULL 50Hz

1. V-SHIFT

***

(**)

Setting item

1. DCXO ADJ

2. NICAM lower ERRLIM

3. NICAM upper ERRLIM

4. A2 ID THR

MENU EQUALIZER

EQUALIZER RF

USER SOUND TURBO THEATER MUSIC NEWS

1. V-SHIFT

2. V-SLOPE

3. V-SIZE

4. H-CENT

5. H-SIZE

6. TRAPEZ

7. EW-PIN

8. COR-UP

EQUALIZER VIDEO EQUALIZER DVD

USER SOUND TURBO THEATER MUSIC NEWS

4 : 3 / 16 : 9

Setting item

Setting value (Hexadecimal)

Setting value

Sereen size

FULL COMPRESS

USER SOUND TURBO THEATER MUSIC NEWS

9. COR-LO

10. ANGLE

11. BOW

12. V-S. CR

13. V-LIN

14. V-ZOOM

15. V-SCROLL

Fig.1

(No.YA328)1-15

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