JVC AV-32T5BK, AV-32T5BR, AV-32T5SK, AV-32T5SP, AV-32T5SR Service Manual

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Page 1

SERVICE MANUAL

COLOUR TELEVISION

YA26020053

AV-32T5SP, AV-32T5SK,

AV-32T5SR, AV-32T5BR,

AV-32T5BK

BASIC CHASSIS

JW2

TV OK

.T/L

TABLE OF CONTENTS

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

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

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

4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14

5 TROUBLE SHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-28

No.YA260

2005/3

Page 2

SPECIFICATION

Contents

Items

Dimensions ( W × H × D ) 86.4cm × 58.7cm × 55.0cm

Mass 52.0kg

TV RF System CCIR (I) CCIR (B/G, I, L)

Colour System PAL

NTSC3.58 / NTSC4.43 (Only EXT mode)

Stereo System NICAM (I) A2 (B/G) / NICAM (B/G, I, L)

Receiving Frequency

Intermediate Frequency

Colour Sub Carrier Frequency

Teletext System FLOF (Fastext)

Power Input AC220V - AC240V, 50Hz

Power Consumption 110W, Standby : 2.7W

Picture Tube Visible size : 76cm [measured diagonally] (H : 67.4cm × V : 38.4cm)

High Voltage 31.0kV (+1kV / -1.5kV) (at zero beam current)

Speaker 13cm × 6.5cm oval type × 2

Audio Power Output 10W + 10W

Aerial Input Terminal 75Ω unbalanced, coaxial

EXT-1 / EXT-2 / EXT-3 (Input / Output)

EXT-4 (Input) Video

Headphone Jack Stereo mini jack (Ø3.5mm × 1) Remote Control Unit RM-C1502 (AA/R6 dry cell battery × 2) [AV-32T5SK, AV-32T5SR, AV-32T5SP]

VHF --- 47MHz - 470MHz

UHF 470MHz - 862MHz

French

CATV

VIF 38.9MHz (I) 38.9MHz (B/G, I, L)

SIF 32.9MHz (6.0MHz :I) 33.4MHz (5.5MHz :B/G)

PAL 4.43MHz

SECAM --- 4.40625MHz / 4.25MHz

NTSC 3.58MHz / 4.43MHz

WST(Standard system)

21-pin Euro connector (SCART socket × 3)

1V(p-p) positive, negative sync provided, 75Ω, RCA pin jack × 1

Audio

500mV(rms) (-4dBs), high impedance, RCA pin jack × 2

RM-C1502B (AA/R6 dry cell battery × 2) [AV-32T5BK, AV-32T5BR]

AV-32T5SK AV-32T5BK

AV-32T5SR AV-32T5BR

PAL SECAM NTSC3.58 / NTSC4.43 (Only EXT mode)

--- 116MHz - 172MHz 220MHz - 469MHz

33.9MHz (L')

32.9MHz ( 6.0MHz:I )

32.4MHz (6.5MHz :L)

TOP (German system) FLOF (Fastext) WST (Standard system)

AV-32T5SP

Design & specifications are subject to change without notice.

1-2 (No.YA260)

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 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 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 drawing an arc. Use a high

voltage meter or a high voltage probe with a VTVM. Discharge the picture tube before attempting meter connection, by connecting a clip lead to the ground frame

and connecting the other end of the lead through a 10kΩ

2W resistor to the anode button.

(8) When service is required, observe 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 Check

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 1000 sensitivity in the following manner. Connect a 1500

Ω per volt or more

Ω

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 across 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 ME TAL PAR T

(No.YA260)1-3

Page 4

1.2 SAFETY PRECAUTIONS [FOR UK]

(1) The design of this product contains special hardware and 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 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 components 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 confirmed 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.YA260)

Page 5

SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

2.1 FEATURES

ZOOM

This function can change the screen size according to the picture aspect ratio.

T-V LINK

When you have a T-V LINK compatible VCR connected to the EXT-2 Terminal on the TV,it is easier to set up the VCR and to view videos.

2.2 MAIN DIFFERENCE LIST

Item AV-32T5SP AV-32T5SK AV-32T5SR AV-32T5BR AV-32T5BK

CABINET COLOUR Silver ←←Black ← POWER CORD EU 2-pin type UK 3-pin type ←←← TEXT/CLOSED CAPTION FLOF, WST, TOP FLOF, WST ←←←

PICTURE & TEXT YES NO NO NO NO

STAND ASSY NO YES ←←← REMOTE CONTROL UNIT RM-C1502 ←←RM-C1502B ← MAIN PWB SJW-1011A-U2 SJW-1911A-U2 SJW-1011A-U2 ← SJW-1911A-U2

2.3 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

4AUDIO GND UsedUsedUsed

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

FUNCTION SW

(SLOW SW)

9 GND (G) Used Used Used

10 SCL / T-V LINK Not 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 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

21 COMMON GND Used Used Used

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

R : 700mV C : 300mV

(P-P)

, 75Ω Used Used Not used

(B-W)

, 75Ω Used Used Not used

(B-W)

, 75Ω

(B-W)

, 75Ω

(P-P)

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

PICTURE MODE

This function can adjust the picture settings automatically.

HYPER SOUND

You can enjoy sounds with a wider ambience.

Used Used Used

Used

(SCL2 / TV-LINK)

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

Not 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

(No.YA260)1-5

Page 6

2.4 TECHNINAL INFORMATION

2.4.1 MAIN MI-COM (CPU) PIN FUNCTION

Pin No.

10 XtalIn I System clock(4MHz) 74 Yout O Y(for 73pin) 11 XtalOut O System clock(4MHz) 75 Uout/INSSW2 I Ys(for EXT-1 Y/R-Y/B-Y insertion) 12 VssA1 -- GND 76 Vout/Swo1 -- Not used 13 Vguard I CRT NECK protection 77 INSSW3 I Ys(for EXT-2 Y/R-Y/B-Y insertion) 14 DecDig -- 1.8V 78 R3/Pr I EXT-2 R-Y 15 V5P1 I 5V 79 G3/Y I EXT-2 Y 16 Phi2 -- Not used 80 B3/Pb I EXT-2 B-Y 17 Phi1 -- Not used 81 Gnd3 -- GND 18 Gnd1 -- GND 82 V5P3 I 5V 19 SecPll -- Not used 83 BCL I Auto Beam / contrast 20 Dec8G -- Not used 84 BLKIN I Black current input (For Auto white balance) 21 Ewd/Avl O Parabola wave 85 Rout O Red (for CRT) 22 Vdb O V. Drive(-) 86 Gout O Green (for CRT) 23 Vda O V. Drive(+)(For side pin) 87 Bout O Blue (for CRT) 24 Vif1 I IF 88 V3.3A1 I 3.3V 25 Vif2 I IF 89 RefAdN -- Not used 26 Vsc -- Not used 90 V3.3RefAdP I 3.3V 27 Iref -- Not used 91 RefAd -- Not used 28 GndIF -- GND 92 GndA -- GND 29 Sif1 I SIF 93 V1.8A I 1.8V 30 Sif2 I SIF 94 V3.3A2 I 3.3V 31 Agc O AGC 95 VssAD -- GND 32 EHT I HV change control 96 V1.8ADC I 1.8V 33 Ssif/RefIn/Avl/RefOut O L'/Other SW [L':H] 97 REMOCON I Remote control 34 AudoIn5L I Not used 98 P10/Int1 I AV_LINK control 35 AudioIn5R I Not used 99 P11/TO O AV_LINK control 36 AudOutSL O Audio (Left) 100 V1.8C2 I 1.8V 37 AudOutSR O Audio (Right) 101 VssC2 -- GND 38 DecsDem -- Not used 102 P04/I2SWs -- Not used 39 QssO/AmO/AudeEm -- Not used 103 P03/I2SClk -- Not used 40 Gnd2 -- GND 104 P02/I2SDo2 -- Not used 41 PllIf -- Not used 105 P01/I2SDo1 -- Not used 42 SifAgc -- Not used 106 HP_DET I Head phone connection detection [Connect : L] 43 IfVo/FmRo/DvbO O Composite video detect 107 P13/T1 O Main power control [ON : H] 44 FmRo/DvbO -- Not used 108 SCL1 O I2C bus (clock) for AV SW, TUNER, VOLUME 45 V8AudioSwitches I 8V 109 SDA1 I/O I2C bus (data) for AV SW, TUNER, VOLUME 46 AgcSsif -- Not used 110 V3.3P I 3.3V 47 V5P2 I 5V 111 P20/TPwm O ROTATION 48 SVO/IfVo/Cvbsl -- Not used 112 P21/Pwm0 O S-CORRECTION CONTROL(PANORAMIC) 49 Audio4InL -- Not used 113 P22/Pwm1 O Audio muting [Muting : L] 50 Audio4InR -- Not used 114 P23/Pwm2 -- Not used 51 Y4/Cvbs4 I Composite video /Y 115 Protect I Protection detection for Low B short [Detect : H] 52 C4 I Chroma 116 P31/Adc1 O Lighting for POWER LED [ON : Soft RED] 53 Audio2InL -- Not used 117 V1.8C1 I 1.8V 54 Audio2InR -- Not used 118 DecV1V8 I 1.8V 55 Cvbs2/Y -- Not used 119 Key I Key scan front control 56 Audio3InL -- Not used 120 AGC I AGC 57 Audio3InR -- Not used 121 VssC1+P1 -- GND 58 Y3/Cvbs -- Not used 122 P24/PW3 -- Not used 59 C3 -- Not used 123 P25/PWM4 -- Not used 60 AudOutLsL -- Not used 124 V1.8C3 I 1.8V 61 AudOutLsR -- Not used 125 VssC3 -- GND 62 AudOutHpL -- Not used 126 Power DET I Main power detection [ON:H] 63 AudOutHpR -- Not used 127 P14/RX I/O I2C bus (data) for generally 64 CVBSO/PIP -- Not used 128 P15/TX O I2C bus (clock) for generally

Pin name I/O Function

1 VssP2 -- GND 65 SVM O Scan velocity modulation 2 VssC4 -- GND 66 FbiSo I H pulse (Flyback pulse) 3 V1.8C4 I 1.8V 67 Hout O H drive 4 V3.3A3 I 3.3V 68 VssComb -- GND 5 VrefP_Sdac I 3.3V 69 V5Comb I 5V for comb filter 6 VrefN_Sdac -- GND 70 Vin/R2/Pr I EXT-1 R-Y 7 VrefP_Sdac I 3.3V 71 Uin/B2/Pb I EXT-1 B-Y 8 VrefN_Sdac -- GND 72 Yin/G2/Y I EXT-1 Y 9 VrefP_Sdac I 3.3V 73 Ysync I Y for SyncSep

Pin No.

Pin name I/O Function

1-6 (No.YA260)

Page 7

SECTION 3

DISASSEMBLY

3.1 DISASSEMBLY PROCEDURE

3.1.1 REMOVING THE REAR COVER

(1) Unplug the power cord. (2) Remove the 13 screws [A], then withdraw the REAR

COVER toward you.

3.1.2 REMOVING THE SIDE CONTROL JACK ASS'Y

• Remove the REAR COVER. (1) Remove the 1 screw [B]. (2) Slightly shift the SIDE CONTROL JACK ASS'Y to rear side

and remove the 1 claws under the SIDE CONTROL JACK ASS'Y.

3.1.3 REMOVING THE SIDE CONTROL PWB

• Remove the REAR COVER.

• Remove the SIDE CONTROL JACK ASSY. (1) Remove the 2 screws [C]. (2) Remove the 2 claws from back side of the SIDE CONTRL

JACK ASS'Y, then pull out the SIDE CONTROL PWB.

3.1.4 REMOVING THE CHASSIS BASE

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

remove the 2 claws under the both sides of the CHASSI S BASE from the front cabinet.

(2) Withdraw the CHASSIS backward.

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

3.1.5 REMOVING THE AV TERMINAL BOARD

• Remove the REAR COVER. (1) Remove the 2 screws [D]. (2) Remove the 2 claws under the CHASSIS, then remove the

AV TERMINAL BOARD.

3.1.6 REMOVING THE SPEAKER

• Remove the REAR COVER.

• Remove the CHASSIS BASE. (1) Remove the 4 screws [E], then remove the SPEAKER. (2) Follow the same steps when removing the other hand

MAIN SPEAKER.

3.1.7 CHECKING THE PW BOARD

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

CHASSIS BASE).

(2) Erect the CHASSIS BASE vertically with the HVT side

facing up so that you can easily check the back side of the PW board.

CAUTION:

• When erecting the CHASSIS BASE, 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 PWB.

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

together. Should it be inadvertently removed, be sure to tie the wires with a new cable tie.

(No.YA260)1-7

Page 8

SPEAKER

CRT SOCKET PWB

SPEAKER

FRONT CONTROL PWB

CONTROL BASE

POWER & DEF PWB

Claw

CHASSIS BASE

SIDE CONTROL PWB

Claw

SIDE CONTROL BASE

SIDE CONTROL JACK ASSY

REAR COVER

Claw

MAIN PWB

AV JACK PWB

POWER CORD

AV TERMINAL BOARD

Claw

1-8 (No.YA260)

Fig.1

Page 9

3.1.9 REMOVING THE CRT

NOTE:

• Replacement of the CRT should be performed by 2 or more persons.

• After removing the REAR COVER, CHASSIS etc.,

(1) Putting the CRT change table on soft cloth, the CRT

change table should also be covered with such soft cloth (shown in Fig. 2).

(2) While keeping the surface of CRT down, mount the TV set

on the CRT change table balanced will as shown in Fig. 2.

(3) Remove 4 screws marked by arrows with a box type

screwdriver as shown in Fig. 3.

NOTE:

Since the cabinet will drop when screws have been removed, be sure to support the cabinet with hands.

(4) After 4 screws have been removed, put the cabinet slowly

on cloth (At this time, be carefully so as not to damage the front surface of the cabinet) shown in Fig. 4.

NOTE:

• The CRT should be assembled according to the opposite sequence of its dismounting steps.

• The CRT change table should preferably be smaller that the CRT surface, and its height be about 35cm.

CRT CHANGE TABLE

CLOTH

CRT CHANGE TABLE

Fig.2

CRT

Fig.3

APPROX. 35cm

BOX TYPE SCREW DRIVER

CRT

CABINET

CRT CHANGE TABLE

Fig.4

COATING OF SILICON GREASE FOR ELECTRICAL INSULATION ON THE CRT ANODE CAP SECTION.

Subsequent to replacement of the CRT and HV transformer or repair of the anode cap, etc. by dismounting them, be sure to coat silicon grease for electrical insulation as shown in Fig.5.Wipe around the anode button with clean and dry cloth. (Fig.5)Coat silicon grease on the section around the anode button. At this time, take care so that any silicon greases dose not sticks to the anode button. (Fig.6)

Silicon grease product No. KS - 650N

CRT

Anode button

Approx. 20mm (Do not coat grease on this section

Silicon grease should be coated by 5mm or more from the outside diameter of anode cap.

Silicon grease

coating

Fig.5

Anode button (No sticking of silicon grease)

Fig.6

Coating position of silicon grease

Anode cap

(No.YA260)1-9

Page 10

3.2 MEMORY IC REPLACEMENT

• This model uses the memory IC.

• This memory IC stores data for proper operation of the video and drive circuits.

• When replacing, be sure to use an IC containing this (initial value) data.

3.2.1 MEMORY IC REPLACEMENT PROCEDURE

1. Power off

Switch off the power and disconnect the power plug from the AC outlet.

2. Replace the memory IC

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

3. Power on

Connect the power plug to the AC outlet and switch on the power.

4. System constant check and setting

* It must not adjust without signal.

(1) Press the [INFORMATION] key and the [MUTING] key

of the REMOTE CONTROL UNIT simultaneously. (2) The SERVICE MODE screen of Fig. 1 will be displayed. (3) While the SERVICE MODE is displayed, press the

[INFORMATION] key and [MUTING] key simultaneously,

and the SYSTEM CONSTANT SET screen of Fig. 2 will

be displayed. (4) Refer to the "SYSTEM CONSTANT SETTING", and

check the setting items. Where these differ, select the

addres with the [FUNCTION /] key and adjust it with

the [FUNCTION /] keys. (The letter of the selected

item is displayed in yellow.) (5) Setup will become effective if the main power is shut off.

5. Receiving channel setting

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

MUTING

6. User settings

Check the user setting items according to the given in page later. Where these do not agree, refer to the OPERATING INSTRUCTIONS and set the items as described.

7. SERVICE MODE setting

Verify what to set in the SERVICE MODE, and set whatever is necessary (Fig.1). Refer to the SERVICE ADJUSTMENT for setting.

INFORMATION

FUNCTION

SERVICE MENU

1. IF 2. V/C

3. AUDIO 4. DEF

5. VSM PRESET 6. VPS

7. SHIPPING (OFF)

MODEL=JW2 EURO (XXXXX)

Fig.1

Address

EEP EDIT (LAST MEMORY) TOP ADDRESS=000H

00 01 02 03 04 05 06 07 8F 00 FE FF FF FF FF FF

08 09 0A 0B 0C 0D 0E 0F FF 01 BB FC 1F F9 FF FF

Setting data

Fig.2

TV OK

.T/L

Do not adjust

FUNCTION

3.2.2 SYSTEM CONSTANT SETTING

Address

AV-32T5SK AV-32T5SP AV-32T5SR AV-32T5BR AV-32T5BK

00 B7 FF F7 F7 B7

01 00 02 01 01 00

1-10 (No.YA260)

Setting data

Page 11

3.2.3 SETTINGS OF FACTORY SHIPMENT

3.2.3.1 BUTTON OPERATION 3.2.3.2 REMOTE CONTROL DIRECT OPERATION

Setting item Setting position

POWER Off

CHANNEL PR1

VOLUME 10

3.2.3.3 REMOTE CONTROL MENU OPERATION

(1) PICTURE

Setting item Setting position

PICTURE MODE STANDARD

CHANNEL PR1

VOLUME 10

ZOOM PANORAMIC

HYPER SOUND OFF

(3) FEATURES

Setting item Setting position

COLOUR TEMP. NORMAL

SLEEP TIMER OFF

FEATURES

AUTO VNR AUTO

COLOUR SYSTEM TV According to preset CH

EXT AUTO

4:3 AUTO ASPECT PANORAMIC

(2) SOUND

Setting item Setting position

STEREO / I•II Stereo sound

BASS -2

TREBLE +2

BALANCE Centre

(5) VSM PRESET TABLE

Item

1.BRIGHT -16 - +16 0 0 0 --- --- ---

2.CONT -16 - +16 +12 +10 +2 --- --- ---

3.COLOUR -16 - +16 +6 0 -2 --- --- ---

4.SHARP -16 - +16 0 0 -2 --- --- ---

5.HUE -16 - +16 0 0 0 --- --- ---

1.R DRIVE -63 - +63 --- --- --- -7 0 +5

2.G DRIVE -63 - +63 --- --- --- 0 0 0

3.B DRIVE -63 - +63 --- --- --- +7 0 -5

Variable

range

PICTURE MODE COLOUR TEMP.

BRIGHT STANDARD SOFT COOL NORMAL WARM

BLUE BACK ON

CHILD LOCK OFF

(4) SET UP

AUTO PROGRAM TV channel automatically set

EDIT/MANUAL PRESET CH only

LANGUAGE ENGLISH

DECODER (EXT-2) OFF

EXT SETTING ID BLANK

PICTURE TILT MIDDLE

Setting item Setting position

The others : BLANK

S-IN BLANK

DUBBING EXT-1 → EXT-2

Setting value

(No.YA260)1-11

Page 12

3.2.4 SERVICE MODE SETING ITEMS

Setting item Setting value Setting item Setting value

1. IF 1. VCO

2. DELAY POINT

2. V/C 1. SCREEN

2. CUTOFF R / G

3. WDR R / G / B

4. BRIGHT

5. CONT.

6. COLOUR

7. HUE

8. BLACK OFFSET B-Y

9. SHARP

10. Y DELAY

11. TINT DVD

12. RGB BLK

3. AUDIO [Do not adjust]

1. DCX0 ADJ.

2. NICAM LOWER ERRLIM

3. NICAM UPPER ERRLIM

4. A2 ID THR

4. DEF 1. V-SHIFT

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

5. VSM PRESET BRIGHT/SOFT/STANDARD

1. BRIGHT

2. CONT.

3. COLOUR

4. SHARP

5. HUE

COOL/WARM/NORMAL

1. R DRIVE

2. G DRIVE

3. B DRIVE

6. VPS [Do not adjust]

7.SHIPPING (OFF) [Do not adjust]

VPS PDC WSS SN

---

1-12 (No.YA260)

Page 13

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.YA260)1-13

Page 14

SECTION 4

ADJUSTMENT

4.1 ADJUSTMENT PREPARATION

(1) There are 2 ways of adjusting this TV : One is with the

REMOTE CONTROL UNIT and 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

warming up for at least 30 minutes before starting adjustments.

(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.

4.2 PRESET SETTING BEFORE ADJUSTMENT

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

Item Preset value

PICTURE MODE STANDARD

COLOUR TEMP. NORMAL

BASS / TREBLE / BALANCE Centre

ZOOM FULL

SLEEP TIMER 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

 CHECK ITEM

• B1 VOLTAGE check

• HIGH VOLTAGE check

• IF VCO check

 FOCUS

• FOCUS adjustment

 DEFLECTION CIRCUIT

• V. POSITION adjustment

• V. SIZE adjustment

• H. POSITION adjustment

• H. SIZE adjustment

• SIDE-PIN adjustment

• TRAPEZIUM adjustment

• CORNER adjustment

• ANGLE adjustment

• BOW adjustment

• V. S-SHAPE CORRECTION & V.LINEARITY adjustment

 VIDEO CIRCUIT

• WHITE BALANCE adjustment

• SUB BRIGHT adjustment

• SUB CONTRAST adjustment

• SUB COLOUR adjustment

• SUB HUE adjustment

• SECAM BLACK OFFSET adjustment

 VSM PRESET SETTING

• VSM PRESET setting

4.5 ADJUSTMENT LOCATIONS

1-14 (No.YA260)

Page 15

HVT

SIDE CONTROL PWB

FRONT

TOP

FRONT

FRONT CONTROL PWB

POWER CORD

SPEAKER

AV JACK PWB

FRONT

MAIN PWB

CN001

CN008

POWER & DEF PWB

DEG

DEG COIL

CN004

TUNER

CN003

CN009

DEF. YOKE

HVT

CRT SOCKET PWB

TP-47R

TP-47B

TP-47G

CN3008

(SOLDER SIDE)

TP-E

CN3009

FOCUS 1

FOCUS 2

SCREEN

1 : TP-91(B1) 2 : TP-E 3 : X-RAY1 4 : X-RAY2

( )

5 : TP-E

(No.YA260)1-15

Page 16

4.6 TOOL OF SERVICE MODE OPERATION

Operate the SERVICE MODE with the REMOTE CONTROL UNIT.

4.6.1 SERVICE MODE ITEMS

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

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. [Do no adjust]

4.DEF This mode adjusts the DEFLECTION circuit.

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

6.VPS This mode shows the monitor of the VPS, PDC, WSS and SN. [Do not adjust]

7.SHIPPING (OFF) This mode initialize the data for factory shipment. [Do no adjust]

4.6.2 BASIC OPERATION IN SERVICE MODE

4.6.2.1 HOW TO ENTER THE SERVICE MODE

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

4.6.2.2 SELECTION OF SUB MENU SCREEN

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

MUTING

INFORMATION

FUNCTION

SERVICE MENU

1. IF

3. AUDIO

5. VSM PRESET

7. SHIPPING(OFF)

TV OK

Fig.1

.T/L

2. V/C

4. DEF

6. VPS

FUNCTION

4.6.2.3 SETTING METHOD

 1.IF

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

(1) [1] key

Select 1.IF.

(2) [1] key

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

(3) [INFORMATION] key

Return to the SERVICE MODE main manu screen.

 2.V/C, 4.DEF and 5.VSM PRESET.

(1) [2], [4] and [5]key

Select one from 2.V/C, 4.DEF, 5.VSM PRESET.

(2) [FUNCTION /] key

Select setting items.

(3) [FUNCTION /] key

Set the setting values of the setting items.

(4) [MENU] key

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

(5) [INFORMATION] key

Return to the SERVICE MODE main manu screen.

 3.AUDIO, 6.VPS and 7.SHIPPING (OFF)

It is not requirement to adjustment.

1-16 (No.YA260)

Fig.2

4.6.2.4 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.

4.6.2.5 RELEASE OF SERVICE MODE

After completing the setting, return to the SERVICE MODE, then again press the [INFORMATION] key.

Page 17

4.6.3 SERVICE MODE FLOW CHART

SERVICE MENU

1. IF 2. V/C

3. AUDIO 4. DEF

5. VSM PRESET 6. VPS

7. SHIPPING (OFF)

1. V-SHIFT

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

PICTURE MODE

BRIGHT STANDARD SOFT

1. BRIGHT

2. CONT

3. COLOUR

4. SHARP

5. HUE

COLOUR TEMP

COOL NORMAL WARM

1. R DRIVE

2. G DRIVE

3. B DRIVE

4. DEF

DEF FULL 50Hz

1. V-SHIFT

5. VSM PRESET

VSM PRESET BRIGHT

1.BRIGHT

6.VPS

VPS PDC 8/30/1

WSS SN

Do not adjust

(---)

=㧖㧖㧖㧖

㧖㧖㧖㧖

=㧖㧖㧖㧖 =㧖㧖

IF SERVICE MENU

1. VCO

2. DELAY POINT

2. V/C

1. SCREEN

3. AUDIO

AUDIO

PAV/C AUTO L

HBC WBC

Do not adjust

1.VCO1.IF

VCO (CW) ** , ** MHz

TOO HIGH ABOVE REFERENCE JUST REFERENCE BELOW REFERENCE TOO LOW

2.DELAY POINT

DELAY POINT

AGC TAKE OVER **

1. SCREEN

2. CUTOFF R/G

3. WDR R/G/B

4. BRIGHT

5. CONT.

6. COLOUR

7. HUE

8. BLACK OFFSET B-Y

9. SHARP

10. Y DELAY

11. TINT DVD

12. RGB BLK

Do not adjust

1. DCX0 ADJ. = NOT NICAM

0002 0009 000A

1. DCX0 ADJ.

NICAM LOWER ERRLIM

3. NICAM UPPER ERRLIM

4. A2 ID THR

(No.YA260)1-17

Page 18

4.7 INITIAL SETTING VALUE OF SERVICE MODE

(1) Adjustment of the SERVICE MODE is made on the basis of the initial setting values. However, 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 listed in “ADJUSTMENT PROCEDURE”. (3) “---” is impossible to adjust or not requirement to adjustment.

4.7.1 [2. V/C]

VIDEO

Setting value

SRF

VIDEO

RGB

Setting item

2. CUT OFF RED -63 - +63 0 0 0 0 0

GREEN -63 - +63 0 0 0 0 0

3. WDR RED -63 - +63 0 0 0 0 -5

GREEN -63 - +63 0 0 0 0 0

BLUE -63 - +63 0 0 0 0 -5

4. BRIGHT -63 - +63 0 0 0 0 0

5. CONT. -63 - +63 -10 -10 -10 -10 0

6. COLOUR -63 - +63 0 0 0 0 -3

7. HUE -63 - +63 --- --- 0 0 ---

8. BLACK OFFSET B-Y 0 - 3 --- 3 --- --- ---

Setting item

9. SHARP -63 - +63+5+5+5+5+5+5+5+5 +5

Setting item

10. Y DELAY0 - +15+5+3+5+5+3+5+5+3+5+5+3+5 ---

Variable

range

Variable

range

Variable

range

PAL SECAM NTSC NTSC4.43

VIDEO

SRF

PAL SECAM NTSC NTSC4.43 RGB

PAL SECAM NTSC NTSC4.43

RF VIDEO RF VIDEO RF VIDEO RF VIDEO

Setting value

VIDEO

SRF

Setting item

11. TINT DVD -63 - +63 -11 -11 -11 -11 -11

12. RGB BLK ---0000---

4.7.2 [3. AUDIO] [Do not adjust]

Setting item

1. DCXO ADJ. --- F0

2. NICAM LOWER ERRLIM 00H - FFH 6F

3. NICAM UPPER ERRLIM 00H - FFH B0

4. A2 ID THR 00H - FFH 00

Variable

range

Variable

range

PAL SECAM NTSC NTSC4.43 RGB

Setting value

1-18 (No.YA260)

Page 19

4.7.3 [4. DEF]

Setting item

1.V-SHIFT -32 - +31+3±0±0±0±0±0±0±0±0±0[-4][±0]

2.V-SLOPE -32 - +31 -10 [±0] [±0] [±0] [-4] [±0] [±0] [±0] [±0] [±0] [±0] [±0]

3.V-SIZE -32 - +31 -6 ±0 +5 +2 +24 ±0 +12 ±0 +1 ±0 [-32] [±0]

4.H-CENT -32 - +31 +15 ±0 ±0 ±0 ±0 ±0 +1 ±0 -5 ±0 [+13] [-6]

5.H-SIZE -32 - +31 +15 ±0 ±0 ±0 ±0 ±0 -11 ±0 +5 ±0 [+4] [±0]

6.TRAPEZ -32 - +31 ±0 ±0 ±0 ±0 -3 ±0 +1 ±0 ±0 ±0 [±0] [±0]

7.EW-PIN -32 - +31 -15 +1 +1 ±0 +1 ±0 +1 ±0 ±0 ±0 [±0] [±0]

8.COR-UP -32 - +31±0±0±0±0±0±0±0±0±0±0[±0][±0]

9.COR-LO -32 - +31±0±0±0±0+9±0±0±0±0±0[±0][±0]

10.ANGLE -32 - +31±0±0±0±0±0±0±0±0±0±0[±0][±0]

11.BOW -32 - +31±0±0±0±0±0±0±0±0±0±0[±0][±0]

12.V.S-CR -32 - +31 -14 -3 +6 ±0 +8 ±0 ±0 ±0 ±0 ±0 [±0] [±0]

13.V.LIN -32 - +31 -5 ±0 ±0 ±0 +16 ±0 ±0 ±0 ±0 ±0 [±0] [±0]

NOTE: [ ] is fixed values.

4.7.4 [5. VSM PRESET]

Item

1.BRIGHT -16 - +16 0 0 0 --- --- ---

2.CONT -16 - +16 +12 +10 +2 --- --- ---

3.COLOUR -16 - +16 +6 0 -2 --- --- ---

4.SHARP -16 - +16 0 0 -2 --- --- ---

5.HUE -16 - +16 0 0 0 --- --- ---

1.R DRIVE -63 - +63 --- --- --- -7 0 +5

2.G DRIVE -63 - +63 --- --- --- 0 0 0

3.B DRIVE -63 - +63 --- --- --- +7 0 -5

Variable

range

Variable

range

FULL PANORAMIC SUBTITLE 14:9 ZOOM REGULAR COMPRESS

50Hz 60Hz 50Hz 60Hz 50Hz 60Hz 50Hz 60Hz 50Hz 60Hz 50Hz 60Hz

PICTURE MODE COLOUR TEMP.

BRIGHT STANDARD SOFT COOL NORMAL WARM

Initial setting value

Setting value

(No.YA260)1-19

Page 20

4.8 ADJUSTMENT PROCEDURE

4.8.1 CHECK ITEM

Item

B1 VOLTAGE DC voltmeter

Measuring

instrument

X connector

1-pin:TP-91(B1) Remote control unit

HIGH VOLTAGE HV voltmeter

Remote

5-pin:TP-E

[POWER & DEF PWB]

CRT anode

Chassis GND control unit

IF VCO Remote

control unit

IF SERVICE ME

1. VCO

2. DELAY POINT

Test point Adjustment part Description

[2.V/C]

12.RGB BLK

(1) Receive the any broadcast. (2) Select 2. V/C from the SERVICE MODE. (3) Select < 12. RGB BLK >. (4) Press the [FUNCTION] key to find the cut off

screen (Black screen). (5) Connect a DC voltmeter to 1-pin and 5-pin. (6) Make sure that the voltage is DC143V ± 2.0V. (7) Press the [FUNCTION] key to return to

SERVICE MODE.

[2.V/C]

12.RGB BLK

(1) Receive the any broadcast. (2) Select 2. V/C from the SERVICE MODE. (3) Select < 12. RGB BLK >. (4) Press the [FUNCTION] key to find the cut off

screen (Black screen). (5) Connect a HV voltmeter to CRT ANODE and

chassis GND. (Ground side is connected previously) (6) Make sure that the voltage is DC 31.0kV (+1kV/-1.5kV). (7) Press the [FUNCTION] key to return to

SERVICE MODE.

NOTE:

Remove the probe before removing the earth clip.

[1.IF]

1.VCO

• Under normal conditions, no adjustment is required.

• It must not adjust without broadcast signal. (1) Receive the any broadcast.

VCO( CW)

****

MHz

(2) Select 1.IF from the SERVICE MODE. (3) Select < 1.VCO >.

TOO HIGH ABOVE REF JUST REF BELOW REF TOO LOW

(4) Check the "←" position between the ABOVE REF.

and BELOW REF.

4.8.2 FOCUS

Item

Measuring

instrument

FOCUS Signal

generator

1-20 (No.YA260)

(A)

Test point Adjustment part Description

FOCUS 1 VR FOCUS 2 VR

[In HVT]

(1) Receive the crosshatch signal. (2) Set the ZOOM mode to FULL. (3) By turning the FOCUS 2 VR, adjust the picture so that

the (A) part vertical line may become thinnest.

(4) By turning the FOCUS 1 VR, adjust the picture so

that the (A) part horizontal line may become uniform at the line centre and its periphery.

(5) Make sure that when the screen is darkened, the

lines remain in good focus.

HVT

FOCUS 1 FOCUS 2 SCREEN

Page 21

4.8.3 DEFLECTION CIRCUIT

There are 6 aspect modes ( 1.FULL, 2.PANORAMIC 3.SUBTITLE, 4.14 : 9 ZOOM, 5.REGULAR, 6.COMPRESS) of the adjustment. Depending upon the kind of signals.

NOTE :

• At first the adjustment in 50Hz FULL mode should be done, then the data for the other aspect mode is corrected in the respective value at the same time. And confirm the deflection adjustment initial setting value in 60Hz (NTSC EXT mode) FULL mode. If the adjustment in 50Hz each aspect mode has been done and stored, the data for the same aspect modes in 60Hz is corrected in the respective value. Only the data for the other aspect mode in 60Hz is corrected for itself.

Item

Measuring

instrument

V. POSITION Signal

generator

Remote control unit

V. SIZE Signal

generator

Remote control unit

Vertical

screen

size

Test point Adjustment part Description

[4.DEF]

1.V- SHIFT

(1) Receive the circle pattern signal of vertical frequency

50Hz (PAL). (2) Set the ZOOM mode to FULL. (3) Select 4.DEF from the SERVICE MODE. (4) Set the initial setting value of < 1.V-SHIFT >. (5) Adjust vertical position to make A = B.

(A)

(6) Check the adjustment value above in other zoom

mode. If it is a wrong adjustment, readjust in FULL

mode and adjust by < 1.V-SHIFT >. (7) Press the [MENU] key and memorize the set value.

(B)

[4.DEF]

3.V-SIZE

(1) Receive the cross hatch signal. (2) Set the ZOOM mode to FULL. (3) Select 4.DEF from the SERVICE MODE. (4) Set the initial setting value of < 3.V-SIZE >. (5) Adjust to make sure that the vertical screen size of

the picture size is in the bellow table. (6) Make sure that the vertical screen size of the each

ASPECT mode is in the below table. (7) Press the [MENU] key and memorize the set value. (8) Input a NTSC VIDEO signal (60Hz) from the EXT

Picture

size

100%

terminal, and make sure that the vertical screen

size is in the table below.

(9)

ASPECT MODE

FULL

PANORAMIC

SUBTITLE

14:9 ZOOM REGULAR

H. POSITION Signal

generator

Remote control unit

(A) (B)

[4.DEF]

4.H-CENT

SCREEN TOP

SCREEN BOTTOM

92%

87%

70%

83%

80%

92%

(1) Receive the circle pattern signal. (2) Set the ZOOM mode to FULL. (3) Select 4.DEF from the SERVICE MODE. (4) Set the initial setting value of < 4.H-CENT >. (5) Adjust horizontal position to make A=B. (6) Press the [MENU] key and memorize the set value.

(No.YA260)1-21

Page 22

Item

Measuring

instrument

H. SIZE Signal

generator

Remote control unit

Test point Adjustment part Description

Horizontal screen size

[4.DEF]

5.H-SIZE

(1) Receive the cross hatch signal. (2) Set the ZOOM mode to FULL. (3) Select 4.DEF from the SERVICE MODE. (4) Set the initial setting value of < 5.H-SIZE >. (5) Adjust to make sure that the horizontal screen size

of the picture size is in the bellow table.

(6) Make sure that the horizontal screen size of the

each ASPECT mode is in the below table. (7) Press the [MENU] key and memorize the set value. (8) Input a NTSC VIDEO signal (60Hz) from the EXT

terminal, and make sure that the horizontal screen

size is in the table below.

SIDE-PIN Signal

generator

Remote control unit

TRAPEZIUM Signal

generator

Remote control unit

Picture size 100%

Straight

[4.DEF]

7.EW-PIN

[4.DEF]

6.TRAPEZ

ASPECT MODE

SCREEN SIZE

* 14:9 ZOOM and REGULAR is length of 90%. * The value in ( ) shows NTSC adjustment value.

FULL

PANORAMIC

92%(91%) 95%(94%) 92%

SUBTITLE

14:9 ZOOM REGULAR

570mm 510mm

(1) Receive the cross hatch signal. (2) Set the ZOOM mode to FULL. (3) Select 4.DEF from the SERVICE MODE. (4) Set the initial setting value of < 7.EW-PIN >. (5) Adjust to make the vertical lines at the right and left

edges of the screen straight. Also make sure that

the 3rd vertical lines are straight. (6) Press the [MENU] key and memorize the set value.

(1) Receive the cross hatch signal. (2) Set the ZOOM mode to FULL. (3) Select 4.DEF from the SERVICE MODE. (4) Set the initial setting value of < 6.TRAPEZ >. (5) Adjust to bring the vertical lines at the right and left

edges of the screen parallel. (6) Press the [MENU] key and memorize the set value.

1-22 (No.YA260)

Parallel

Page 23

Item

Measuring

instrument

CORNER Signal

generator

Remote control unit

Test point Adjustment part Description

[4.DEF]

8.COR-UP

9.COR-LO

(1) Receive the cross hatch signal. (2) Set the ZOOM mode to FULL. (3) Select 4.DEF from the SERVICE MODE. (4) Set the initial setting value of < 8.COR-UP >. (5) Adjust to bring the straight line at the upper corner. (6) Set the initial setting value of < 9.COR-LO >.

Straight

(7) Adjust to bring the straight line at the lower corner. (8) Press the [MENU] key and memorize the set value.

Straight

ANGLE Signal

generator

Remote control unit

BOW Signal

generator

Remote control unit

[4.DEF]

10. ANGLE

[4.DEF]

11.BOW

• In case where there is a parallelogrammical distortion of images on the screen. (1) Receive the cross hatch signal. (2) Set the ZOOM mode to FULL. (3) Select 4.DEF from the SERVICE MODE. (4) Set the initial setting value of < 10. ANGLE >. (5) Adjust to bring the vertical lines straight. (6) Press the [MENU] key and memorize the set value.

• In case where there is a bow-shaped distortion of images on the screen. (1) Receive the cross hatch signal. (2) Set the ZOOM mode to FULL. (3) Select 4.DEF from the SERVICE MODE. (4) Set the initial setting value of < 11. BOW >. (5) Adjust to bring the vertical lines straight. (6) Press the [MENU] key and memorize the set value.

(No.YA260)1-23

Page 24

Item

V. S-SHAPE CORRECTION

Measuring

instrument

Signal generator

& V. LINEARITY

Remote control unit

4.8.4 VIDEO CIRCUIT

Test point Adjustment part Description

[4.DEF]

12.V.S-CR

13.V.LIN

• When the vertical linearity has been deteriorated remarkably, perform the following steps. (1) Receive the cross hatch signal. (2) Set the ZOOM mode to FULL. (3) Select 4.DEF from the SERVICE MODE. (4) Set the initial setting value of < 13.V.LIN >.

TOP

(5) Set the initial setting value of < 12.V.S-CR >. (6) Adjust < 13.V.LIN > and < 12.V.S-CR > so that the

spaces of each line on top, center and bottom become uniform.

CENTRE

BOTTOM

(7) Press the [MENU] key and memorize the set value.

Item

WHITE BALANCE

Measuring

instrument

Signal generator

Remote control unit

REMOTE CONTROL UNIT KEY

CUTOFF G WDR G

CUTOFF R WDR R

SUB BRIGHT Remote

control unit

SUB CONTRAST

Remote control unit

Test point Adjustment part Description

123

456

789

[2. V/C]

2.CUTOFF R/G

3.WDR R/B

CUTOFF G WDR G

WDR B

[2. V/C]

4. BRIGHT

[2. V/C]

5. CONT.

(1) Receive the black and white signal (colour off). (2) Set the ZOOM mode to FULL. (3) Set the PICTURE mode to STANDARD. (4) Set the COLOUR TEMP. to NORMAL. (5) Select 2.V/C from the SERVICE MODE. (6) Select < 2.CUTOFF >. (7) Each select (R), (G) and adjust the screen until the

black portion in the screen becomes black. (8) Select < 3.WDR >. (9) Each select (R), (B) and adjust the screen until the

white portion in the screen becomes white.

NOTE: Do not adjust < 3. WDR G >.

(10) Press the [MENU] key and memorize the set value. (11) Change the contrast and brightness from low light

to high light and check that the tracking of the white

balance is good.

(1) Receive the any broadcast. (2) Set the ZOOM mode to FULL. (3) Set the PICTURE mode to STANDARD. (4) Select 2.V/C from the SERVICE MODE. (5) Set the initial setting value of < 4.BRIGHT >. (6) If the brightness is not the best with the initial set-

ting value, make fine adjustment until you get the

best brightness. (7) Press the [MENU] key and memorize the set value.

(1) Receive the any broadcast. (2) Set the ZOOM mode to FULL. (3) Set the PICTURE mode to STANDARD. (4) Select 2.V/C from the SERVICE MODE. (5) Set the initial setting value of < 5.CONT >. (6) If the contrast is not the best with the initial setting

value, make fine adjustment until you get the best

contrast. (7) Press the [MENU] key and memorize the set value.

1-24 (No.YA260)

Page 25

Item

Measuring

instrument

SUB COLOUR Signal

generator

Remote control unit

Signal generator

Oscilloscope

Remote control unit

Test point Adjustment part Description

TP-47B TP-E

[CRT SOCKET PWB ]

[2.V/C]

6.COLOUR

[2.V/C]

6.COLOUR

Method of adjustment without measuring instrument

PAL COLOUR

(1) Receive PAL broadcast. (2) Set the ZOOM mode to FULL. (3) Set the PICTURE mode to STANDARD. (4) Select 2.V/C from the SERVICE MODE. (5) Set the initial setting value of < 6.COLOUR >. (6) If the colour is not the best with the initial set value,

make fine adjustment until you get the best colour.

(7) Press the [MENU] key and memorize the set value.

SECAM COLOUR [AV-32T5SP]

(1) Receive the SECAM broadcast. (2) Follow the same step 2 to 7 as in PAL COLOUR.

NTSC 3.58 COLOUR

(1) Input the NTSC 3.58MHz signal from the EXT

terminal.

(2) Follow the same step 2 to 7 as in PAL COLOUR.

NTSC 4.43 COLOUR

(1) When NTSC 3.58 COLOUR set, NTSC 4.43

COLOUR will automatically set.

Method of adjustment using measuring instrument

PAL COLOUR

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

white). (2) Set the ZOOM mode to FULL. (3) Set the PICTURE mode to STANDARD. (4) Select 2.V/C from the SERVICE MODE. (5) Set the initial setting value of < 6.COLOUR >. (6) Connect the oscilloscope between TP-47B and TP-E. (7) Adjust < 6. COLOUR > and bring the value of (A) in

the illustration into the value shown in the table. (8) Press the [MENU] key and memorize the set value.

Setting item

VOLTAGE (W-B)

Adjustment value

PAL NTSCSECAM

-3V +2V0V

(A)

(-)

(+)

SECAM COLOUR [AV-32T5SP]

(1) Receive the SECAM colour bar signal (75% white). (2) Follow the same step 2 to 8 as in PAL COLOUR.

NTSC 3.58 COLOUR

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

with 75% white) from the EXT terminal. (2) Follow the same step 2 to 8 as in PAL COLOUR.

NTSC 4.43 COLOUR

(1) When NTSC 3.58 COLOUR set, NTSC 4.43

COLOUR will automatically set.

(No.YA260)1-25

Page 26

Item

Measuring

instrument

SUB HUE Signal

generator

Remote control unit

Signal generator

Oscilloscope

Remote control unit

TP-47B TP-E

[CRT SOCKET PWB]

Test point Adjustment part Description

[2.V/C]

7.HUE

Method of adjustment without measuring instrument

NTSC 3.58 TINT

(1) Input the NTSC 3.58MHz COMPOSITE VIDEO

signal (full field colour bar with 75% white) from the

EXT terminal. (2) Set the ZOOM mode to FULL. (3) Set the PICTURE mode to STANDARD. (4) Select 2.V/C from the SERVICE MODE. (5) Set the initial setting value of < 7. HUE >. (6) If you cannot get the best hue with the initial setting

value, make fine adjustment until you get the best

hue. (7) Press the [MENU] key and memorize the set value.

NTSC 4.43

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

automatically set at the respective values.

[2.V/C]

7.HUE

Method of adjustment using measuring instrument

NTSC 3.58 TINT

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

with 75% white) from the EXT terminal. (2) Set the ZOOM mode to FULL. (3) Set the PICTURE mode to STANDARD. (4) Select 2.V/C from the SERVICE MODE. (5) Set the initial setting value of < 7. HUE >. (6) Connect the oscilloscope between TP-47B and TP-E. (7) Adjust < 7. HUE > and bring the value of (B) in the

illustration into the value shown in the table.

(8) Press the [MENU] key and memorize the set

value.

(B)

(-)

(+)

NTSC 4.43 TINT

(1) When NTSC 3.58 COLOUR set, NTSC 4.43

COLOUR will automatically set.

Setting item

VOLTAGE (W-M)

1-26 (No.YA260)

Adjustment value

Page 27

Item

SECAM BLACK OFFSET [AV-32T5SP]

B/W mode

Measuring

instrument

Signal generator

Test point Adjustment part Description

TP-47B TP-E

[CRT SOCKET PWB]

Oscilloscope

Remote control unit

REMOTE CONTROL UNIT KEY

Colour mode

123

R-Y

It adjusts so that the voltage of B/W and COLOUR waveform may become the same.

456

789

B-Y

[2.V/C]

8. BLACK OFFSET

(1) Receive the SECAM full field colour bar signal. (2) Set the ZOOM mode to FULL. (3) Set the PICTURE mode to STANDARD. (4) Select 2. V/C from the SERVICE MODE. (5) Set the initial setting value of < 8.BLACK OFFSET

(6) Connect the oscilloscope between TP-47B and TP-

E at the CRT SOCKET PWB.

(7) Press [1] and [2] keys alternately (turn the colour

on and off), check the waveform of difference in the voltage.

(8) While looking at the waveform, adjust < 8.BLACK

OFFSET > to become same level of the signal voltage of black and white waveform by pressing [6] or [9] keys of remote control unit.

(9) Press the [MENU] key and memorize the set value.

Black and White waveform

Colour waveform

4.8.5 VSM PRESET SETTING

Item

VSM PRESET Remote

Measuring

instrument

control unit

Test point Adjustment part Description

[5. VSM PRESET]

1. BRIGHT

2. CONT

3. COLOUR

4. SHARP

5. HUE

1. R DRIVE

2. G DRIVE

3. B DRIVE

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

shown in the below table. (5) Press the [MENU] key to memorize the set value. (6) Select < 2.CONT > to < 5.HUE > in turn, and set the

values. (7) Respectively select the "SOFT" and "STANDARD".

Make similar adjustment as same step as above. (8) Set the COLOUR TEMP to COOL. (9) Select < 1.R DRIVE >.

(10) Set the initial setting value of COLOUR TEMP., as

shown in the below table.

(11) Press the [MENU] key to memorize the set value. (12) Select < 2.G DRIVE > and < 3.B DRIVE > in turn,

and set values.

(13) Respectively select the "WARM" and "NORMAL".

Make similar adjustment as same step as above.

 VSM PRESET TABALE

Setting value

Item Variable range

BRIGHT STANDARD SOFT COOL NORMAL WARM

1.BRIGHT -16 - +16 0 0 0 --- --- ---

2.CONT -16 - +16 +12 +10 +2 --- --- ---

3.COLOUR -16 - +16 +6 0 -2 --- --- ---

4.SHARP -16 - +16 0 0 -2 --- --- ---

5.HUE -16 - +16 0 0 0 --- --- ---

1.R DRIVE -63 - +63 --- --- --- -7 0 +5

2.G DRIVE -63 - +63 --- --- --- 0 0 0

3.B DRIVE -63 - +63 --- --- --- +7 0 -5

PICTURE MODE COLOUR TEMP.

(No.YA260)1-27

Page 28

SECTION 5

TROUBLE SHOOTING

This service manual does not describe TROUBLE SHOOTING.

1-28 (No.YA260)

Page 29

(No.YA260)1-29

Page 30

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.YA260)

Printed in Japan

VPT