JVC HV-Z29J4, HV-Z29J4/H, HV-Z29J4/S Service Manual

YA207200412

SERVICE MANUAL

COLOUR TELEVISION

HV-Z29J4,

123

456

789

RETURN+

TV/VIDEO MENU

DISPLAY

CHANNEL VOLUME

CINEMA

SOUND

SURROUND

MODE

F. T/L

STROBE

HV-Z29J4 HV-Z29J4

/H,

BASIC CHASSIS

MM2

DVDPIP T V

SUB-P

BACK

SUB-P

BASS ZOOM

TOP MENU

TABLE OF CONTENTS

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

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

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

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

5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-37

No.YA207

2004/12

SPECIFICATION

Items Contents

Dimensions ( W × H × D ) 73.1cm × 49.5cm × 62.2cm

Mass 46.0kg

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

Colour System PAL / SECAM / NTSC 3.58 / NTSC 4.43

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

Receiving Frequency

Intermediate Frequency

Colour Sub Carrier

Teletext System FLOF (Fastext), TOP, WST (World Standard System)

Power Input AC 110V - AC240V, 50Hz/60Hz

Power Consumption 177W (Standby : 2.1W)

Picture Tube Visible size : 67.6cm (Measured diagonally), H: 55.4cm × V: 41.4cm

High Voltage 31.0kV±0.2kV [at zero beam current]

Speaker 6.5cm × 13cm, oval type × 2

Audio Power Output

Aerial Input 75 Ω unbalanced, coaxial

Video / Audio [Input-1/2/3/4]

Video / Audio Output

Headphone Jack 3.5mm Stereo mini jack × 1 AV COMPULINK 3.5mm mini jack × 1 Remote Control Unit RM-C1851 (AA/R6 dry cell battery × 2)

Component Video

VHF Low

VHF High

UHF

CATV

VIF SIF

PAL

SECAM

NTSC

[Input-2/3]

1125i / 750p

625p / 525p

625i / 525i

S-Video

[Input-1/4]

Video Audio

46.25MHz ~ 168.25MHz

175.25MHz ~ 463.25MHz

471.25MHz ~ 863.25MHz Mid (X ~ Z+2, S1 ~ S10) / Super (S11 ~ S20) / Hyper (S21 ~ S41) bands

38.0MHz (B, G, I, D, K, L)

32.26MHz (5.74MHz: B), 32.15MHz (5.85MHz: G), 31.45MHz (6.55MHz: I)

32.15MHz (5.85MHz: D), 32.15MHz (5.85MHz: K)

4.43MHz

4.40625MHz / 4.25MHz

3.58MHz / 4.43MHz

10W + 10W

RCA pin jack × 6 Y : 1V (p-p) (Sync signal: ±0.35V(p-p), 3-value sync.), 75 Ω

Pb/Pr : ±0.35V(p-p), 75 Ω Y : 1V (p-p), Positive (Negative sync provided), 75 Ω Pb/Pr : 0.7V(p-p), 75 Ω Mini-DIN 4 pin connector × 2 Y: 1V (p-p), Positive (Negative sync provided), 75 Ω C: 0.286V (p-p) (Burst signal), 75 Ω 1V (p-p), Positive (Negative sync provided), 75 Ω, RCA pin jack × 4 500mV (rms), High impedance, RCA pin jack × 8

1V (p-p), Positive (Negative sync provided), 75 Ω, RCA pin jack × 1 500mV (rms), Low impedance, RCA pin jack × 2

Design & specifications are subject to change without notice.

1-2 (No.YA207)

SECTION 1

PRECAUTION

1.1 SAFETY PRECAUTIONS

(1) The design of this product contains special hardware,

many circuits and components specially for safety purposes. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Service should be performed by qualified personnel only.

(2) Alterations of the design or circuitry of the products should

not be made. Any design alterations or additions will void the manufacturer's warranty and will further relieve the manufacturer of responsibility for personal injury or property damage resulting therefrom.

(3) Many electrical and mechanical parts in the products have

special safety-related characteristics. These characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in the parts list of Service manual. Electrical components

having such features are identified by shading on the schematics and by ( ) on the parts list in Service manual. The use of a substitute replacement which does

not have the same safety characteristics as the recommended replacement part shown in the parts list of Service manual may cause shock, fire, or other hazards.

(4) Don't short between the LIVE side ground and

ISOLATED (NEUTRAL) side ground or EARTH side ground when repairing.

Some model's power circuit is partly different in the GND. The difference of the GND is shown by the LIVE : ( ) side GND, the ISOLATED (NEUTRAL) : ( ) side GND and EARTH : ( ) side GND. Don't short between the LIVE side GND and ISOLATED (NEUTRAL) side GND or EARTH side GND and never measure the LIVE side GND and ISOLATED (NEUTRAL) side GND or EARTH side GND at the same time with a measuring apparatus (oscilloscope etc.). If above note will not be kept, a fuse or any parts will be broken.

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

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

(6) The high voltage 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 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 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.YA207)1-3

SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

2.1 FEATURES

D.I.S.T. (Digital Image Scaling Technology)

This system uses line interpolation to double the number of scanning lines and achieve high resolution, flicker-free picture.

ZOOM

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

DIGITAL VNR

This function cuts down the amount of noise in the original picture.

Super DigiPure

This function uses the latest in digital technology to give you a natural-looking picture.

PULL DOWN

This function displays a cinema film picture more smoothly and naturally on the screen.

2.2 MAIN DIFFERENCE LIST

Dolby Virtual

This function makes you enjoy sounds with Virtual Dolby Surround sound.

3D CINEMA SURROUND

This function makes you enjoy sounds with a widerambience.

SUPER BASS

This function can choose the SUPER BASS mode which emphasises the bass sound.

RETURN +

This function can set a channel you frequently view to the Return Channel and you can view that channel at any time with one-touch.

AI ECO SENSOR

This function can adjust this TV so that the screen automatically adjusts to the optimum contrast according to the brightness of your room. This function reduces eye strain and the power consumption of this TV.

Item HV-Z29J4 HV-Z29J4/H HV-Z29J4/S

Power Plug Type Round 2-pin type UK 3-pin type ← MAIN PWB SMM-1251A-H2 ← SMM-1252A-H2

1-4 (No.YA207)

2.3 TECHNICAL INFORMATION

2.3.1 MAIN CPU PIN FUNCTION [IC001 : MI-COM PWB ASS'Y]

Pin name I/O Function

No.

1 TCK -- Not used 65 D2 I/O Data bit for PP-RAM/SD-RAM 2 TMS -- Not used 66 D12 I/O Data bit for PP-RAM/SD-RAM 3 TDI -- Not used 67 D10 I/O Data bit for PP-RAM/SD-RAM 4 TDO -- Not used 68 VSS33 -- GND 5 P2.8 I Remote control 69 VDD33 I 3.3V 6P2.9 I 7P2.10 I 8P2.11 I

9 P2.12 I Receive data for AV COMPULINK 73 RSTIN I Reset for main CPU 10 P2.13 O Power on /off control (ON: L) 74 P3.0 O Clock for Inter IC control bus (for I-P) 11 P2.14 I 12 P2.15 I Main power detection (Detect : L) 76 P3.2 I Remote control 13 VSS33 -- GND 77 P3.3 O Headphone muting (Muting: H) 14 VDD33 I 3.3V 78 P3.4 O Audio muting (Muting: H) 15 P4.5 O Not used 79 P3.5 O Audio muting (Muting: H) 16 A20 O Not used 80 P3.6 O Not used 17 A19 O Address bit for PP-RAM/SD-RAM 81 P3.7 O I-P converter reset (ON : L ) 18 A18 O Address bit for PP-RAM/SD-RAM 82 P3.8 O Power LED lighting (for stand-by) (ON : L) 19 A17 O Address bit for PP-RAM/SD-RAM 83 P3.9 O Power LED lighting (for operation) (ON : L) 20 VSS25 -- GND 84 VSS33 -- GND 21 VDD25 I 2.5V 85 VDD33 I 3.3V 22 A16 O Address bit for PP-RAM/SD-RAM 86 VSS25 -- GND 23 A8 O Address bit for PP-RAM/SD-RAM 87 VDD25 I 2.5V 24 A7 O Address bit for PP-RAM/SD-RAM 88 TXD0 O Not used 25 A9 O Address bit for PP-RAM/SD-RAM 89 RXD0 I Not used 26 A6 O Address bit for PP-RAM/SD-RAM 90 P3.12 O Not used 27 A5 O Address bit for PP-RAM/SD-RAM 91 P3.13 I/O Data for Inter IC control bus (for Memory) 28 A10 O Address bit for PP-RAM/SD-RAM 92 P3.15 O Clock for Inter IC control bus (for Memory) 29 A11 O Address bit for PP-RAM/SD-RAM 93 P5.14 I RGB input of EXT-2 detection (Detect : L) 30 A12 O Address bit for PP-RAM/SD-RAM 94 P5.15 I Headphone connection detection (Connect: H) 31 VSS33 -- GND 95 TRIG_IN I RGB input of EXT-1 detection (Detect : L) 32 VDD33 I 3.3V 96 TRIG_OUT O Attenuation level select for RF splitter (ON : H) 33 A4 O Address bit for PP-RAM/SD-RAM 97 P6.2 O Notifies bus free state (Stop mode: H) 34 A3 O Address bit for PP-RAM/SD-RAM 98 P6.3 O Clock for Inter IC control bus (for Service mode) 35 A2 O Address bit for PP-RAM/SD-RAM 99 P6.4 I/O Data for Inter IC control bus (for Service mode) 36 A1 O Address bit for PP-RAM/SD-RAM 100 P6.5 O MSP reset (Reset: H) 37 A0 O Address bit for PP-RAM/SD-RAM 101 P6.6 I/O Data for Inter IC control bus 38 A13 O Address bit for PP-RAM/SD-RAM 102 VSYNC I Vertical sync 39 A14/RAS O Row address strobe for SD-RAM access 103 HSYNC I Horizontal sync 40 A15/CAS O Column address strobe for SD-RAM access 104 COR/RSTOUT O Not used 41 VSS33 -- GND 105 BLANK O Ys for OSD /Teletext (blanking) 42 VDD33 I 3.3V 106 VDD33 I 3.3V 43 MEMCLK O Clock for SD-RAM 107 VSS33 -- GND 44 CSSDRAM O Chip select signal for SD-RAM device 108 XTAL1 I System clock (6MHz) 45 CLKEN O Enable for memory clock 109 XTAL2 O System clock (6MHz) 46 CSROM O Chip select for PP-ROM device 110 VSSA -- GND 47 RD O External memory read strobe for PP-ROM 111 VDDA I 2.5V 48 UDQM O Write disable for high byte 112 R O Red for OSD / Teletext 49 LDQM O Write disable for low byte 113 G O Green for OSD / Teletext 50 WR O Memory write strobe 114 B O Blue for OSD / Teletext 51 D15 I/O Data bit for PP-RAM/SD-RAM 115 VSSA -- GND 52 VSS33 -- GND 116 VDDA I 2.5V 53 VDD33 I 3.3V 117 CVBS2 I Composite video for WSS 54 D7 I/O Data bit for PP-RAM/SD-RAM 118 VSSA -- GND 55 D0 I/O Data bit for PP-RAM/SD-RAM 119 VDDA I 2.5V 56 D14 I/O Data bit for PP-RAM/SD-RAM 120 CVBS1B I Ground for CVBS1A 57 D8 I/O Data bit for PP-RAM/SD-RAM 121 CVBS1A I Composite video for Teletext decoder 58 D6 I/O Data bit for PP-RAM/SD-RAM 122 VSSA -- GND 59 D1 I/O Data bit for PP-RAM/SD-RAM 123 VDDA I 2.5V 60 VSS33 -- GND 124 P5.0 I AFT voltage for Main tuner 61 VDD33 I 3.3V 125 P5.1 I AFT voltage for Sub tuner 62 D13 I/O Data bit for PP-RAM/SD-RAM 126 P5.2 I Room brightness voltage for AI ECO SENSOR 63 D9 I/O Data bit for PP-RAM/SD-RAM 127 P5.3 I I-P converter power error detect (detect : L) 64 D5 I/O Data bit for PP-RAM/SD-RAM 128 TMODE I Test mode

Key scan for front control : CH+, Volume-, TV/VIDEO (On: L) Key scan for front control : CH-, Volume-, Volume+ (On: L) Key scan for front control : MENU, Volume+, TV/VIDEO (On: L)

Low B short / CRT neck Protection detection (Detect : L)

Pin name I/O Function

No.

70 D4 I/O Data bit for PP-RAM/SD-RAM 71 D3 I/O Data bit for PP-RAM/SD-RAM 72 D11 I/O Data bit for PP-RAM/SD-RAM

75 P3.1 I/O Data for Inter IC control bus (for I-P)

(No.YA207)1-5

SECTION 3

DISASSEMBLY

3.1 DISASSEMBLY PROCEDURE

3.1.1 REMOVING THE REAR COVER

(1) Unplug the power cord. (2) Remove the 15 screws [A] as shown in Fig.2. (3) Withdraw the REAR COVER toward you.

3.1.2 REMOVING THE AV TERMINAL BOARD

• Remove the REAR COVER. (1) Remove the 12 screws [B] as shown in Fig.2. (2) Remove the ANTENA TERMINAL pin jack from back side

of the AV TERMINAL BOARD.

(3) Remove the BASS SPEAKER OUT terminal from back

side of the AV TERMINAL BOARD.

(4) Pull out the AV TERMINAL BOARD rear side.

3.1.3 REMOVING THE CHASSIS

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

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

(2) Withdraw the CHASSIS backward.

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

3.1.4 REMOVING THE SPEAKER

• Remove the REAR COVER. (1) Remove the 2 screws [C] as shown in Fig.2. (2) Remove the SUPPORT BRACKET. (3) Remove the 4 screws [D] as shown in Fig.2. (4) Remove the speaker.

3.1.6 WIRE CLAMPING AND CABLE TYING

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

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

3.1.7 REMOVING THE WOOFER UNIT REAR COVER

(1) Remove the 9 screws [H] as shown in Fig.1. (2) Remove the SEAKER UNIT REAR COVER.

3.1.8 REMOVING THE WOOFER SPEAKER

(1) Remove the 4 screws [J] as shown in Fig.1. (2) Remove the WOOFER SPEAKER.

3.1.9 REMOVING THE DUCT

(1) Remove the 3 screws [K] as shown in Fig.1. (2) Remove the DUCT. (3) Remove the other side DUCT by same method.

BASS TOP

DUCT

3.1.5 CHECKING THE PW BOARD

• To check the back side of the PW Board. (1) Pull out the CHASSIS. (Refer to REMOVING THE CHASSIS). (2) Remove the CONTROL BASE. (3) Turn down the front side to make the chassis stand

perpendicularly.

(4) Check the solder side of MAIN PWB and POWER & DEF

PWB.

CAUTION:

• When erecting the CHASSIS, be careful so that there will be

no contacting with other PW Board.

• Before turning on power, make sure that the wire connector

is properly connected.

• When conducting a check with power supplied, be sure to

confirm that the CRT EARTH WIRE(BRAIDED ASS'Y) is connected to the CRT SOCKET PWB.

DUCT

WOOFER SPEAKER

BASS BOTTOM

Fig.1

1-6 (No.YA207)

FRONT CABINET

SPEAKER

CRT SOCKET PWB

POWER SW PWB

SUPPORT BRACKET

LINE FILTER BASE

CHASSIS BASE

CONTROL PWB

MICOM PWB

FRONT

CONTROL BASE

DIST PWB

SUB TUNER

PWB

MAIN PWB

AV SW PWB

LINE FILTER PWB

DEF OSC PWB POWER & DEF PWB

EHT PWB

AV TERMNAL BOARD

SUPPORT BRACKET

REAR COVER

Fig.2

(No.YA207)1-7

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

NOTE:

• It must not adjust without signal.

• Before entering the SERVICE MODE, confirm that the setting of PIP/TV/DVD switch is at the "TV" side.

(1) Press the [DISPLAY] 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

[DISPLAY] key and [MUTING] key simultaneously, and

the SYSTEM CONSTANT SET screen of Fig. 2 will be

displayed. (4) Check the setting values of the SYSTEM CONSTANT

SETTING. If the value is different, select the setting item

with the [ FUNCTON/] key, and set the correct value

with the [ FUNCTON/] key. (5) Press the [MENU] key to memorize the setting value. (6) Press the [DISPLAY] key twice, and return to the normal

screen.

5. Receiving channel setting

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

FUNCTION /

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.

SERVICE MENU

1. IF

3. AUDIO

5. VSM &SSM PRESET

7. 3DNR

9. SHIPPING(OFF)

1-9 : SELECT i : EXIT

SYSTEM CONSTANT SET

1. P MUTE YES

- / + : STORE i : EXIT

MUTING

123

456

789

RETURN+

ZOOM

DISPLAY

TV/VIDEO MENU

DISPLAY

CHANNEL VOLUME

SOUND

MODE

STROBE

Fig.1

Fig.2

CINEMA

SURROUND

F. T /L

SUB-P

BASS ZOOM

TOP MENU

2. V/C

4. DEF

6. STATUS

8. IP

0. BUS FREE

DVDPIP T V

PIP/TV/DVD switch

CINEMA

FUNCTION /

BACK

Fig.3

3.2.2 SYSTEM CONSTANT SETTING

Setting item Setting content

HV-Z29J4 HV-Z29J4/H HV-Z29J4/S

Setting value

1.P MUTE YES / NO YES ←←

2.TTX SBT PMT YES / NO YES ←←

3.VOL LIMIT YES / NO YES ← NO

4.BB OFF MUTE YES / NO NO ← YES

5.COLOUR AUTO YES / NO NO ← YES

6.PIP P MUTE YES / NO YES ←←

1-8 (No.YA207)

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

TV/VIDEO TV

3.2.3.3 REMOTE CONTROL MENU OPERATION

(1) PICTURE

Setting item Setting position

PICTURE MODE BRIGHT

WHITE BALANCE MID

AI ECO SENSOR OFF

FEATURES

DIGITAL VNR AUTO (LOW)

Super DigiPure AUTO

PULL DOWN AUTO

Colour DigiPure ON

COLOUR SYSTEM MAIN Depend on the preset channel

SUB AUTO

ZOOM REGULAR

MULTI 9 pictures

(2) SOUND

Setting item Setting position

STEREO / I•II Stereo sound

SOUND MODE DYNAMIC

BALANCE Centre

HEADPHONE VOLUME 10

Dolby Virtual OFF

3D CINEMA SURROUND OFF

SUPER BASS HIGH

BBE Digital ON

CHANNEL PR1

VOLUME 10

ZOOM REGULAR

3D CINEMA SORRUND OFF

MULTI SCREEN 9 pictures

TV/VIDEO TV

(3) FEATURES

SLEEP TIMER OFF

ON TIMER PR 01

CHANNEL GUARD "OFF" for all channels

APPEARANCE TYPE A

BLUE BACK ON

CHILD LOCK OFF

AUTO SHUTOFF OFF

FAVOURITE SETTING No memory

(4) SET UP

AUTO PROGRAM TV channel automatically set

EDIT/MANUAL PRESET CH only

LANGUAGE ENGLISH

PICTURE TILT Centre

VIDEO-2 SETTING COMPONENT

VIDEO-3 SETTING COMPONENT

AI VOLUME ON RF

TELETEXT LANGUAGE

Setting item Setting position

ON TIME 00:00

Setting item Setting position

OFF VIDEO

GROUP-1 [HV-Z29J4, HV-Z29J4/H] GROUP-4 [HV-Z29J4/S]

(No.YA207)1-9

(5) VSM & SSM PRESET SETTING TABLE

Setting item

1.CONT -16~16 16 5 -8 --- --- --- --- --- --- ---

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

3.SHARP -16~16 0 0 -2 --- --- --- --- --- --- ---

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

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

1.WDR R -64~63 --- --- --- 0 0 19 --- --- --- ---

2.WDR G -64~63 --- --- --- 0 0 0 --- --- --- ---

3.WDR B -64~63 --- --- --- 12 0 0 --- --- --- ---

6.120Hz -10~10 --- --- --- --- --- --- 4 3 -7 0

7.500Hz -10~10 --- --- --- --- --- --- 5 2 1 0

8.1.5KHz -10~10 --- --- --- --- --- --- -2 0 5 0

9.5KHz -10~10 --- --- --- --- --- --- 1 1 2 0

10.10KHz -10~10 --- --- --- --- --- --- 3 3 -6 0

11.EFFECT -128~127 --- --- --- --- --- --- 0 0 -61 0

3.2.4 SERVICE MODE SETING ITEMS

Setting item Setting value Setting item Setting value

1. IF 1. VCO

2. V/C 1.CUT OF R

3. AUDIO [Do not adjust]

Variable

range

2. ATT ON/OFF

2.CUT OF G

3.CUT OF B

4.DRIVE R

5.DRIVE G

6.DRIVE B

7.BRIGHT

8.CONT

9.COLOUR

10.HUE

11.TWN CNT

12.TWN COL

13.TWN TNT

14.BY GAIN

15.RY ANGLE

1.ERROR LIM - 24.BBE ON120

PICTURE MODE WHITE BALANCE SOUND STATUS

BRIGHT

STD SOFT COOL MID WARM

5. VSM & SSM PRESET BRIGHT/SOFT/STD

Setting value

DYNAMIC

1.CONT.

2.BRIGHT

3.SHARP

4.COLOUR

5.TINT

COOL/WARM/MID

1.WDR R

2.WDR G

3.WDR B

DYNAMIC/MUSIC/NEWS/USER

6.120Hz

7.500Hz

8.1.5KHz

9.5KHz

10.10KHz

11.EFFECT

MUSIC NEWS USER

4. DEF 1.FREE-RUN

2.V-SHIFT

3.V-SIZE

4.H-CENT

5.H-SIZE

6.TRAPEZ

7.EW-PIN

8.COR-UP

9.COR-LOW

10.V.S-COR

11.V-LIN

1-10 (No.YA207)

6. STATUS [Do not adjust]

7. 3DNR [Do not adjust]

8 .IP [Do not adjust]

9.SHIPPING [Do not adjust]

0.BUS FREE [Do not adjust]

1.SOFT

2.TELETEXT

3.ASPECT

4.IC

1.YNR LIM - 90.HGCON21

1.ASLVGAIN - 70.BVMCORINGON

----

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.YA207)1-11

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

CONTRAST / BRIGHT / SHARP / COLOUR / TINT Centre

WHITE BALANCE MID

DIGITAL VNR AUTO (LOW)

Super DigiPure AUTO

Colour DigiPure ON

PULL DOWN AUTO

BALANCE Centre

3D CINEMA SOUND OFF

ZOOM REGULAR

SLEEP TIMER OFF

BLUE BACK 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

• IF VCO check

 HIGH VOLTAGE

• HIGH VOLTAGE adjustment

 X-RAY PROTECTOR OPERATION SETTING

• X-RAY PROTECTOR OPERATION SETTING

 HORIZONTAL FREQUENCY

• HORIZONTAL FREQUENCY adjustment

 FOCUS

• FOCUS adjustment

 DEFLECTION CIRCUIT

• V.POSITION adjustment

• V.SIZE adjustment

• H. POSITION adjustment

• H.SIZE adjustment

• SIDE-PIN adjustment

• TRAPEZIUM adjustment

• CORNER PIN adjustment

• V. LINEARITY adjustment

 VIDEO CIRCUIT

• WHITE BALANCE adjustment

• SUB BRIGHT adjustment

• SUB CONTRAST adjustment

• SUB COLOUR adjustment

• SUB TINT adjustment

• SUB SCREEN CONTRAST adjustment

• SUB SCREEN COLOUR & TINT adjustment

 VSM & SSM PRESET SETTING

• VSM & SSM PRESET setting

1-12 (No.YA207)

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