JVC PD-Z35DV4, PD-Z35DV4-S, PD-Z42DV4, PD-Z42DV4-S Service Manual

SERVICE MANUAL

PDP COLOUR TELEVISION

PD-Z35DV4, PD-Z35DV4

PD-Z42DV4, PD-Z42DV4/S

BASIC C

HASSIS

FP2

1 PRECAUTION 2 SPECIFIC SERVICE INSTRUCTIONS 3 DISASSEMBLY 4 ADJUSTMENT 5 TROUBLESHOOTING

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

..................................................................................................................................................... 1-11

...................................................................................................................................................... 1-28

........................................................................................................................................... 1-40

TABLE OF CONTENTS

...................................................................................................................... 1-6

No.YA101

2004/7

SPECIFICATION

Contents

Items

Dimensions (W x H x D) Mass 38.3kg 30.4kg TV RF System CCIR B / G, I, D / K, K1, M Colour System RF PAL / SECAM / NTSC3.58 / NTSC4.43

VIDEO PAL / SECAM / NTSC3.58 / NTSC4.43 Stereo System A2 (B / G), NICAM (B / G, I, D / K / K1) Teletext System FLOF (Fastext), TOP, WST (World Standard System) Receiving Frequency VHF Low 46.25MHz ~ 168.25MHz

VHF High 175.25MHz ~ 463.25MHz

Intermediate VIF 38.0MHz (B / G, I, D / K, K1, M) Frequency SIF

Colour Sub Carrier Frequency

Power Input AC110V ~ AC240V, 50Hz / 60Hz Power Consumption Operate : 303W, Stand by: 3.0W Operate : 244W, Stand by : 3.0W Plasma Display Panel (PDP)  QLE0028-001  QLE0021-001

Screen Size Visible size : 107.5cm (Diagonal) / Visible size : 91.0cm (Diagonal) /

Display Pixels Speaker 6.6cm round x4, (Oblique cone) Audio Power Output 10W + 10W Aerial Input Teminal 75Ω unbalanced, coaxial Video / Audio Iutput S-Video [1/2/4] Mini-DIN 4 pin connector x3 [1/2/3/4] Y : 1V(p-p), 75Ω, positive (negative sync)

Component Video [1/3]

1125i / 750p Y : 1V(p-p), 75Ω, 3-value sync : ±0.35V(p-p)

525i / 525p

Video / Audio Output Video 1V(p-p), 75Ω, RCA pin jack x1

Audio Output (Fixed) 500mV (rms), low impedance, RCA pin jack x 2 Subwoofer Output 500mV (rms), low impedance, RCA pin jack x 1 Center CH Input 500mV (rms), low impedance, RCA pin jack x 1 PC (RGB) Input D-sub 15pin x 1

Headphone 3.5mm Stereo mini jack x 1 Remote Control Unit RM-C1830H (AA/R6 TYPE battery x 2)

Design & specifications are subject to change without notice.

104.5cm x 72.9cm x 11.0cm 90.7cm x 63.4cm x 11.7cm

UHF 471.25MHz ~ 863.25MHz

CATV Mid: X ~ Z+2, S1~S10

Super: S11 ~ S20 Hyper: S21 ~ S41

33.4MHz (5.5MHz: B / G) / 32.9MHz (6.0MHz: I) / 32.4MHz (6.5MHz: D / K, K1) /

33.5MHz (4.5MHz :M) PAL : 4.43MHz SECAM : 4.40MHz / 4.25MHz NTSC : 3.58MHz / 4.43MHz

42V wide aspect (16:9) 35V wide aspect (16:9)

93.3 cm x 53.3 cm (H x V) 78.6 cm x 44.2 cm (H x V) H: 852 pixels / V: 480 pixels

C: 0.286V(p-p) (Burst signal), 75 Video 1V(p-p), 75Ω, negative sync, RCA pin jack x4 Audio 500mV(rms) (-4dBs), high impedance, RCA pin jack x8

RCA pin jack x 3

Pb/Pr : ±0.35V(p-p), 75

Y : 1V(p-p), 75Ω, positive (Negative sync)

Pb / Pr : 0.7V(p-p), 75

Audio 500mV(rms)(-4dBs), low impedance (400Hz when modulated 100%),

RCA pin jack x2

R/G/B : 0.7V (p-p), 75

HD / VD : 1V (p-p) to 5V (p-p), high impedance

VGA : 640 pixels x 480 pixels (Horizontal : 31.5kHz / Vertical : 60Hz)

PD-Z42DV4 PD-Z35DV4 PD-Z42DV4/S PD-Z35DV4/S

[W-VGA]

Ω

H: 853 pixels / V: 480 pixels

[W-VGA]

1-2 (No.YA101)

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 : ( GND, the ISOLATED (NEUTRAL) : ( EARTH : (

) side GND. Don't short between the LIVE

) side GND and

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 PDP POWER SUPPLY setting should be checked or adjusted.

(6) The high voltage applied to the PDP must conform with

that specified in Service manual. Excessive high voltage can cause an increase in 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 components in the circuitry including the PDP 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.

) side

(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.).

Alternative 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 ohms 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 1000Ω/V, OR MORE SENSITIVITY)

0.15µF AC-TYPE

PLACE THIS PROBE

1500Ω 10W

GOOD EARTH GROUND

ON EACH EXPOSE ME TA L PA RT

(No.YA101) 1-3

1.2 INSTALLATION

1.2.1 HEAT DISSIPATION

If the heat dissipation vent behind this unit is blocked, cooling efficiency may deteriorate and temperature inside the unit will rise. The temperature sensor that protects the unit will be activated when internal temperature exceeds the predetermined level and power will be turned off automatically. Therefore, please make sure pay attention not to block the heat dissipation vent as well as the ventilation outlet behind the unit and ensure that there is room for ventilation around it.

SPACE REQUIRED FOR INSTALLATION

1.2.2 INSTALLATION REQUIREMENTS

Ensure that the minimal distance is maintained, as specified below, between the unit with and the surrounding walls, as well as the floor etc. Install the unit on stable flooring or stands. Take precautionary measures to prevent the unit from tipping in order to protect against accidents and earthquakes.

150 mm or

150 mm

200 mm or 200 mm

50 mm

50 mm or more

1.2.3 FALL TIP PREVENTION MEASURES

Take precautionary measures to prevent the unit from falling or tipping to protect against emergencies such as earthquakes as well as accidents. Fasten the supplied hook for tip fall prevention using the screws, also supplied, behind the display unit, and use them together with durable cords (to be purchased separately) to secure the unit to a robust part such as the wall surface or pillars.

150 mm or more

150 mm

200 mm 200 mm

or more

50 mm

50 mm or more

1-4 (No.YA101)

The supplied hook for tipfall prevention

1. 3 PRECAUTIONS REGARDING PDP

1.3.1 PRECAUTIONS DURING NOTES FOR TRANSPORTATION

When transporting the unit, pressure exerted on the internal PDP (Plasma Display Panel) due to improper handling (such as tossing and dropping) may cause damages even when the unit is carefully packed. To prevent accidents from occurring during transportation, pay careful attention prior to delivery such as through explaining the handling instructions to transporters. Ensure that the following requirements are met during transportation, as the PDP of this unit is made of glass and therefore fragile:

(1) Avoid vibrations and impacts

The unit may be broken if it is toppled sideways even when properly packed. Ensure that the unit is carried by at least 2 persons and pay careful attention not to exert any vibration or impact on it.

(2) Do not place equipment horizontally

Ensure that it is placed upright and not horizontally during transportation and storage as the PDP is very vulnerable to lateral impacts and may break easily under such circumstances. During transportation, ensure that the unit is loaded along the traveling direction of travel of the vehicle, and avoid stacking them on one another. For storage, ensure that they are stacked in 2 layers or less even when placed upright.

1.3.2 RESIDUAL IMAGE / BURN-IN ON SCREEN

Like CRTs, “burn-in” may occur when a same image is continuously displayed over an extended period of time. As this may also shorten the life span of the PDP. Therefore, turn off the display when not in use, scroll the screen, make use of screen-savers, or allow even distribution on the display by inverting the brightness, switching to complementary colors or inserting animated images at periodic intervals. As burn-in is more likely to occur with high brightness and contrast settings, try to use neutral gradations or medium tone colors. Burn-in does not occur in the case of animated images. When switching to another image after continuous display of the previous image, residual images may become prominent, as luminance in a part of the display is higher than the other parts. This is not a defect but is because due to the discharge surface of the lighted portion has become being relatively activated and its luminance higher than the unlighted parts.

1.3.4 OPTICAL FILER (PANEL FILTER)

Avoid placing the unit under direct sunlight over a prolonged period of time. This may cause the optical filter to deteriorate in quality and color. Clean the filter surface by wiping it softly lightly with outing flannels a soft and lightly fuzz cloth (such as flannel). Do not use solvents such as benzine or thinner to wipe the filter surface. This may cause the filter to deteriorate in quality or the coating on the surface to come off. As the filter surface is fragile., do not scratch or hit it with hard materials.

1.3.5 NOTES PRECAUTIONS FOR REPLACEMENT OF EXTERIOR PARTS

Take note of the following when replacing exterior parts (back REAR COVER, FRONT PANEL, optical filter)

• Do not exert pressure on the front of the PDP (glass surface).

• Pay careful attention not to scratch or stain the front of the PDP

(surface) with hands.

• When replacing exterior parts, the front of the PDP should be

placed facing downward. Place a mat, etc. underneath to avoid causing scratches to the front surface. However, never use materials that are too soft (such as blanket cloth). If replacement is made with the PDP surface facing downward and in contact with the blanket, pressure may be exerted on the PDP, thus causing damages to it.

1.3.3 INFRARED RAYS

Near Near-infrared rays (800nm to 1000nm) are emitted from the front of the panel, and this may give rise to malfunctions in infrared remote controls or communication systems placed near it. In this case, avoid direct infrared rays (and reflected rays in some cases) from the screen by either changing the direction of the unit or other infrared systems or securing a longer keeping a distance from the screen.

(No.YA101) 1-5

SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

2.1 FEATURES

2.1.1 HIGH-DEFINITION IMAGE TECHNOLOGY (DIST)

• DIST (Digital Image Scaling Technology)

Employs an interpolation method that doubles the scanning lines to realize 480-line flickerfree picture making it especially suitable for reproducing high-resolution pictures even on largescreen displays.

2.1.2 MAIN FUNCTION

•

DIGITAL VNR

The DIGITAL VNR function cuts down the amount of noise in original picture. There are three function settings of AUTO,MIN and MAX.

• Super DigiPure

This function uses the latest technology to give viewer a natural looking picture. It consist of DigiPure and picture motion compensation function.

•

PULL DOWN

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

•

COLOUR MANAGEMENT

This function ensures dull colours are compensated to produce natural hues.

•

PICTURE MANAGEMENT

This function makes it easier to see the dark areas when a picture has many dark areas, and makes it easier to see the bright areas when a picture has many bright areas.

• Sleep Timer

Setting for situations such as falling asleep while watching TV, and for prevention against forgetting to turn off the TV. The power supply of the TV will be cut off automatically when the time exceeds the set up timing (maximum 2 hours).

• CINEMA SURROUND function

This function makes the speaker sounds like in a wider ambience.

• A.H.B. (Active Hyper Bass)

Used when you want to emphasize the bass sound.

• BBE

You can use the BBE function to enjoy easyto-listen sound that is faithful to the original sound recorded.

• Teletext function

The teletext broadcast can be viewed and the teletext pages can be stored in memory.

2.1.3 ASPECT CONTROL

The screen size can be changed according to the picture aspect ratio.

• ZOOM function

Desired screen size (AUTO/REGULAR / PANORAMIC / 14:9 ZOOM / 16:9 ZOOM / 16:9 ZOOM SUBTITLE / FULL) can be selected.

2.1.4 MULTI-SCREEN FUNCTION

• Twin-pictures function

With the function, two pictures can be displayed at the Twin pictures mode.

• Multi-picture function

With this function, one of multi-picture (12 pictures) can be displayed at the same time.

• Freeze function

The images that are currently seen can be viewed on the memo screen (still picture). It is convenient for taking down notes like application address and recipe of cooking program etc, while enjoying the current program.

2. 2 MAIN DIFFERENCE LIST

Item

POWER CORD

1-6 (No.YA101)

PD-Z35DV4 PD-Z42DV4

QMPL050-250-K

QMPB560-180-JC

PD-Z35DV4/S PD-Z42DV4/S

---

QMPB320-180-R

---

2. 3 TECHNICAL INFORMATION

2.3.1 PDP STRUCTURE AND CHARACTERISTIC

This unit uses the flat type panel PDP (Plasma Display Panel), instead of the conventional CRT (Cathode Ray Tube), as a display unit.

2.3.1.1 PIXEL (CELL) ARRAY

PDP is constructed by sealing the xenon, which emits neon and ultraviolet rays for discharging purpose, in between the electrodes lay on the front glass substrate and rear glass substrate. One pixel is composed of 3 RGB cells, with cell pitch of 0.365mm (1 pixel 1.095mm) [PD-Z42DV4, PD-Z42DV4/S] / 0.307 mm (1 plxel

0.921 mm) [PD-Z35DV4, PD-Z35DV4/S] horizontally and 1.110mm [PD-Z42DV4, PD-Z42DV4/S] / 0.921 mm [PD-Z35DV4, PDZ35DV4/S] vertically. The cell is arrayed in each RGB color as shown in Fig. 1. One pixel is formed by interlacing each RGB color cell. One cell size is 0.365mm [PD-Z42DV4, PD-Z42DV4/S] / 0.307 mm [PD-Z35DV4, PD-Z35DV4/S] horizontally and 1.110mm [PDZ42DV4, PD-Z42DV4/S] / 0.921 mm [PD-Z35DV4, PD-Z35DV4/S] vertically.

Direction

Vertically

No.1

Pixel line

No.2

Pixel line

No.479

Pixel line

No.480

Pixel line

PD-Z42DV4, PD-Z42DV4/S

PD-Z35DV4, PD-Z35DV4/S

Horizontally

No.1 Pixel

sequence

No.2 Pixel

sequence

B G R B G R

(R) (B) (R)(G) (G) (B) (R) (B) (R) (B)

(R) (B) (R)(G) (G)

(R) (B) (R) (B) (R) (B) (R) (B)

RBGR

(B) (R) (B) (R) (B)

G RBG R

(G) (G)

GRBGR

(G) (G)

1 pixel (1 dot)

1.095mm

0.921 mm 0.307 mm

(Horizontally) Pixel pitch

B(R) Cell

G(G)

Cell

R(B) Cell

No.851 No.852 No.852

Pixel

sequence

B GRBG R

(G) (G)

BGRBGR

(G) (G)

G RBG R

(G) (G)

GRBGR

(G) (G)

0.365mm

(Horizontally) Cell pitch

No.853

Pixel

sequence

PD-Z42DV4, PD-Z42DV4/S PD-Z35DV4, PD-Z35DV4/S

1.110 mm PD-Z42DV4, PD-Z42DV4/S

0.921 mm PD-Z35DV4, PD-Z35DV4/S (Vertically)

Pixel pitch

(Cell pitch)

PD-Z42DV4, PD-Z42DV4/S PD-Z35DV4, PD-Z35DV4/S

Fig.1

2.3.1.2 PIXEL DEFECTS

Though PDP is made by means of ultra precise technology, there are cases whereby not all pixels (cell) will function properly. In some cases, there may be defective pixels that do not light at all or the ones that always light on. There are 3 types of Pixel defects, [Bright Dot Defects], [Dark Dot Defects] and [Flicker Dot Defects], as defined respectively in the following:

(1) Bright Dot Defects

Bright dot defect is a pixel cell that lights though it should not light. The presence of bright dot defects can be confirmed by inputting a full black signal (pattern).

(2) Dark Dot Defects

Dark dot defect is a pixel cell that does not light, though it should light. The presence of dark dot defects can be confirmed by inputting a 100% full white signal (pattern).

(3) Flicker Dot Defects

Flicker dot defect is a pixel cell that blinks though it should light or not light. The presence of flicher dot defects can be confirmed by inputting a full black signal (pattern).

(No.YA101) 1-7

2.3.2 CHASSIS CPU [DIGITAL SIGNAL PWB : IC7001] PIN FUNCTION

Pin No.

Pin name I/O Function

Pin No.

1 NC O Not used 2 P_MU O Video muting [Muting : H] 3 FUNC_LED O Not used 4 A_MU O Audio muting [Muting : H] 5 M_MU O Monitor audio muting [Muting : H] 6 PC_SW O PC i n p u t select [ON : H] 7 DIMMER_LED O Power LED dimmer control [Low dimmer : L] 8 NC O Not used

9 NC O Not used 10 NC O Not used 11 POW_LED O Power LED control [ON : H] 12 NC O Not used 13 SBT2 I Clock for main CPU communication 14 SBI2 I Data transmission for main CP U

communication 15 SBO2 O Data receive for main CP U communication 16 REQ O Request for main CPU communication 17 3.3V I 3.3V 18 NC O Not used 19 GND - GND 20 3.3V I 3.3V 21 NC O Not used 22 3.3V I 3.3V 23 OSCI I 16MHz for system clock 24 OSCO O 16MHz for system clock 25 3.3V I 3.3v 26 NC O Not used 27 A92_RST O 3D YC separation reset [Reset : L] 28 NC O Not used 29 LIP_RST O Not used 30 NC O Not used 31 NC I Not used 32 NC O Not used 33 MDR_CON I Not used 34 3.3V I 3.3V 35 NC O Not used 36 DsyncSW2 O Not used 37 NC O Not used 38 NC O Not used 39 HOTPLUG I Not used 40 MECA_SW I Power switch monitor [ON : L] 41 MAIN_POW O Main power control [ON : L] 42 MSP_RESET O Multi sound processor reset [Reset : H] 43 0V - GND 44 NC I Not used 45 AFT1 I AFT detection [Detection : H] 46 NC I Not used 47 NC I Not used 48 NC O Not used 49 NC O Not used 50 NC I Not used 51 NC O Not used 52 NC I Not used 53 NC O Not used 54 3.3V I 3.3V 55 PDP_TX O PDP communication for panel CPU 56 PDP_RX I PDP communication for panel CPU 57 SDA0 I/O I2C bus data (for chassis memory) 58 SCL0 O I2C bus clock (for chassis memory) 59 SDA_DVI I/O Not used 60 SCL_DVI I/O Not used 61 GND - GND 62 NC I Not used 63 NC I Not used 64 NC I Not used

Pin name I/O Function

65 NC I Not used 66 3.3V I 3.3V 67 NC O Not used 68 NC O Not used 69 NC O Not used 70 NC O Not used 71 NC O Not used 72 NC O Not used 73 SBD5 I/O Flash writing for chassis CPU 74 SBT5 I Flash writing for chassis CPU 75 3.3V I 3.3V 76 NC I Not used 77 REMOCON I Remote control 78 V_SYNC I Vertical sync 79 WAKEUP_SHM I

Sleep state release for chassis CPU

[Relese : L] 80 POWERGOOD I Power error detection [Detection : H] 81 REC_LED O Stand-by power LED control [Stand-by :H] 82 RST I Chassis CPU reset [Reset : L] 83 3.3V I 3.3V 84 SCL3A O I

C bus clock (for 3D YC separation, colour management / OSD composition / RGB process, U / V frontend)

85 SDA3A I/O I

C bus data (for 3D YC separation, colour management / OSD composition / RGB process, U / V frontend)

86 SCL3B O I

C bus clock (for multi sound process, video / audio select, colour demod. / sync sep., 3 line comb filter, component video / audio select, sync sep. / SW / detect)

87 SDA3B I/O I

C bus data (for multi sound process, video / audio select, colour demod. / sync sep., component video / audio select, sync sep. / SW / detect)

88 NC O Not used 89 NC O Not used 90 NC O Not used 91 DVI_RST O Not used 92 GND - GND 93 SCL5055 O I2C bus clock (for DIST) 94 NC O Not used 95 SDA5055 I/O I2C bus data (for DIST) 96 NC O Not used 97 NC O Not used 98 15K/OTH O Y signal select for 3D YC separation

[525i : H / other : L]

99 DsyncSW1 O Not used

100 JCC5057_BUSY I Busy for Colour management / RGB

prosess / OSD composition [Busy : H]

1-8 (No.YA101)

2.3.3 MAIN CPU [DIGITAL SIGNAL PWB : IC7501] PIN FUNCTION

Pin No.

10 OSDB4 O Blue for OSD

11 TV-LINK I Not used 12 RX_BUSY(Sirial) O Request for chassis CPU communication 13 VSS33 - GND 14 VDD33 I 3.3V 15 TV_LINK_OUT O Not used 16 A20 O Program ROM address for main CPU 17 A19 O Program ROM address for main CPU 18 A18 O Program ROM address for main CPU 19 A17 O Program ROM address for main CPU 20 VSS25 - GND 21 VDD25 I 2.5V 22 A16 O Program ROM address for main CPU 23 A8 O Program ROM address for main CPU 24 A7 O Program ROM address for main CPU 25 A9 O Program ROM address for main CPU 26 A6 O Program ROM address for main CPU 27 A5 O Program ROM address for main CPU 28 A10 O Program ROM address for main CPU 29 A11 O Program ROM address for main CPU 30 A12 O Program ROM address for main CPU 31 VSS33 - GND 32 VDD33 I 3.3V 33 A4 O Program ROM address for main CPU 34 A3 O Program ROM address for main CPU 35 A2 O Program ROM address for main CPU 36 A1 O Program ROM address for main CPU 37 A0 O Program ROM address for main CPU 38 A13 O Program ROM address for main CPU 39 A14/RAS O Program ROM address for main CPU 40 A15/CAS O Program ROM address for main CPU 41 VSS33 - GND 42 VDD33 I 3.3V 43 MEMCLK O Clock for memory 44 CSSDRAM O Chip select for memory 45 CLKEN O Clock enable for memory 46 CSROM O Chip select for memory 47 RD O Read for memory 48 UDQM O Control buffer of memory 49 LDQM O Control buffer of memory 50 WR O Write for memory 51 D15 I/O Program ROM data for main CPU 52 VSS33 - GND 53 VDD33 I 3.3V 54 D7 I/O Program ROM data for main CPU 55 D0 I/O Program ROM data for main CPU 56 D14 I/O Program ROM data for main CPU 57 D8 I/O Program ROM data for main CPU 58 D6 I/O Program ROM data for main CPU 59 D1 I/O Program ROM data for main CPU 60 VSS33 - GND 61 VDD33 I 3.3V 62 D13 I/O Program ROM data for main CPU 63 D9 I/O Program ROM data for main CPU 64 D5 I/O Program ROM data for main CPU 65 D2 I/O Program ROM data for main CPU

Pin name I/O Function

1 TCK I Test purpose 2 TMS I Test purpose 3 TDI I Test purpose 4 TDO O Test purpose 5 NC O Not used 6 OSDB0 O Blue for OSD 7 OSDB1 O Blue for OSD 8 OSDB2 O Blue for OSD 9 OSDB3 O Blue for OSD

Pin No.

66 D12 I/O Program ROM data for main CPU 67 D10 I/O Program ROM data for main CPU 68 VSS33 - GND 69 VDD33 I 3.3V 70 D4 I/O Program ROM data for main CPU 71 D3 I/O Program ROM data for main CPU 72 D11 I/O Program ROM data for main CPU 73 RSTIN I Reset 74 POWER O 75 76 REMOCON I Remote control 77 PIX CLOCK I Clock for OSD 78 OSDR0 O Red for OSD 79 OSDR1 O Red for OSD 80 OSDR2 O Red for OSD 81 OSDR3 O Red for OSD 82 MRST(Sirial) O Data transmission for chassis CP U

83 MTSR(Sirial) I Data receive for chassis CPU communication 84 VSS33 - GND 85 VDD33 I 3.3V 86 VSS25 - GND 87 VDD25 I 2.5V 88 MICON TX O Communication for adjustment 89 MICON RX O Communication for adjustment 90 OSDR4 O Red for OSD 91 CLK(Sirial) O Clock for chassis CPU communication 92 OSDG0 O Green for OSD 93 OSDG1 O Green for OSD 94 OSDG2 O Green for OSD 95 OSDG3 O Green for OSD 96 OSDG4 O Green for OSD 97 OSDG5 O Green for OSD 98 SCL3A O I2C b us cl ock ( for main memory) 99 SDA3A I/O I2C bus Data (for main memory)

100 TEXT / OTHER O Teletext signal select

101 IRQ(IDTV) O Not used 102 V_PULSE I Vertical sync 103 H_PULSE I Horizontal sync 104 (COR/RSTOUT) O Not used 105 Ys O Ys for OSD / Teletext 106 VDD33 I 3.3V 107 VSS33 - GND 108 XTAL1 I 6MHz for system clock 109 XTAL2 O 6MHz for system clock 110 VSSA - GND

111 VDDA I 2.5V 112 R O R for OSD / Teletext 113 G O G for OSD / Teletext 114 B O B for OSD / Teletext 115 VSSA - GND 116 VDDA I 2.5V 117 CVBS I Video for Teletext 118 VSSA - GND 119 VDDA I 2.5V 120 GND I GND 121 CVBS I Video for Teletext 122 VSSA - GND 123 VDDA I 2.5V 124 F_KEY_1 I Key scan data 1 [ON : H] 125 F_KEY_2 I Key scan data 2 [ON : H] 126 POWER_KEY I Main power ON / OFF control [ON : L] 127 NC I Not used 128 (TMODE) I Test purpose

Pin name I/O Function

Sleep state release for chassis CPU [Relese : L]

ID_TV_POWER(IDTV)

O Not used

communication

[Analog RGB : H / Digital RGB : L]

(No.YA101) 1-9

2.3.4 PANEL CPU [INTERFACE PWB : IC807] PIN FUNCTION

Pin No.

Pin name I/O Function

1 SYSTEM0 I PDP size select [1.75V : 42V VGA

3.25V : 35V VGA]

2 SYSTEM3 I PDP maker select [0V : SAMSUNG

3.25V : NEC] 3 AVCC I 5.0V 4 X2 - Not used 5 X1 - GND 6 VCL - GND 7 RES I Reset [Reset : L] 8 TEST I GND 9 VSS - GND

10 OSC2 O 16MHz for system clock

11 OSC1 I 16MHz for system clock 12 VCC I 5.0V 13 PW_LOB O Power control [ON : L] 14 PANEL_PW_ON O Panel power control [ON : L] 15 TALK_RST O Not used 16 CODEC_RST O Not used 17 I2C_STOP O I2C bus stop control [Stop : L] 18 NC O Not used 19 PSCK O Not used 20 PLE O Not used [PD-Z42DV4, PD-Z42DV4/S] /

PDP communication for DVI format

conversion [PD-Z35DV4, PD-Z35DV4/S] 21 CLE O Not used 22 PSSC O Not used 23 SDA1 I/O I2C bus data (for panel memory) 24 FAN O Not used 25 SCL1 O I2C bus clock (for panel memory) 26 SDA0 I/O

I2C bus data (for BBE / surround / audio control,

temp. sensor) 27 SCL0 O

I2C bus clock (for BBE / surround / audio control,

temp. sensor) 28 SDA2 / SDATA I/O I2C bus data (for PDP communication) 29 SCL2 / SCK O I2C bus clock (for PDP communication) 30 LE O Not used [PD-Z42DV4, PD-Z42DV4/S] /

PDP communication for DVI format

conversion [PD-Z35DV4, PD-Z35DV4/S] 31 SDA3 I/O Not used 32 SCL3 O Not used 33 NC O Not used 34 NC O Not used 35 NMI I Port for writing on board control [Writing : L] 36 A_MU O Audio muting [Muting : H] 37 (HD) I Not used 38 ON_TIMMER O Not used 39 REMO I Not used 40 POWERLED O Not used 41 P85 I Emulator connection / Port for writing on

board [Writing : H] 42 P86 I Emulator connection 43 P87 I Emulator connection 44 SCK3 O Port for writing on board 45 RXD I Port for writing on board 46 TXD O Port for writing on board 47 AC_DET / ALARM I AC power frequency detection

[Detection : H] [PD-Z42DV4, PD-Z42DV/S] /

PDP communication for DVI format

converstion [PD-Z35DV4, PD-Z35DV4/S] 48 NC O Not used 49 RXD2 I Data receive for chassis CPU communication 50 TXD2 O Data transmission for chassis CPU

communication 51 NC O Not used 52 MECA_SW I Not used

Pin No.

Pin name I/O Function

53 VD I Vertical sync 54 REC_DET I Not used 55 I2C_READY / PSS I PDP I

C communication select [Prohibition : L / Permission : H] [PD-Z42VD4, PD-Z42DV4/S] / PDP communication for DVI format converstion [PD-Z35DV4, PD-Z35DV4/S]

56 FAN_LOCK I Not used 57 SYSTEM2 I Not used 58 SYSTEM 1 I Not used 59 THEM_DET I Temp. sensor detection [Detection : H] 60 (AMP_PRO2) - GND 61 AMP_PRO1 I Not used 62 EE_CDS I Not used 63 KEY_IN1 I Not used 64 KEY_IN2 I Not used

1-10 (No.YA101)

SECTION 3

DISASSEMBLY

3.1 DISASSEMBLY PROCEDURE [PD-Z42DV4, PD-Z42DV4/S]

CAUTION:

• When exchanging parts etc. with the front side (PDP side)

facing down, please place a protection sheet below before starting, so as to prevent scratches on the front side.

3.1.1 REMOVING THE REAR COVER (Fig.1)

(1) Remove the power cord. (2) Remove the 15 screws [A], the 4 screws [B] and the 8

screws [C], and remove the REAR COVER.

(x11)

3.1.2 REMOVING THE TERMINAL COVER AND CENTER COVER (Fig.1)

• Remove the REAR COVER.

(1) Remove the 7 screws [D], and remove the CHASSIS

SHIELD COVER.

(2) Remove the 6 screws [E], and remove the CENTER

COVER.

(3) Disconnect the COAXIAL CABLE. (4) Remove the 6 screws [F], the 12 screws [G], the 1 screw

[H], and the 1 connector [I], and remove the TERMINAL COVER.

(x4)

(x8)

(x2)

REAR COVER

(x2)

(x6)

(x7)

CHASSIS SHIELD COVER

CENTER COVER

COAXIAL CABLE

(x12)

(x2)

TERMINAL COVER

(x2)

TOP

Fig. 1

(No.YA101) 1-11

3.1.3 REMOVING THE AUDIO PWB (Fig. 2)

• Remove the REAR COVER.

(1) Remove the 4 screws [J], and remove the AUDIO CHASSIS

COVER.

(2) Disconnect the connectors [CN600B], [CN600C],

[CN600Y], [CN60SL], [CN60SR] from the AUDIO PWB.

(3) Remove the 4 screws [K], and remove the AUDIO PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.1.4 REMOVING THE AV JACK PWB (Fig.2)

• Remove the REAR COVER.

• Remove the CENTER COVER.

• Remove the CHASSIS SHIELD COVER.

• Remove the TERMINAL COVER.

(1) Disconnect the connectors [CN0J01], [CN0J02] from the

AV JACK PWB.

(2) Remove the 4 screws [L], and remove the AV JACK PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.1.5 REMOVING THE INTERFACE PWB (Fig.2)

• Remove the REAR COVER.

• Remove the CENTER COVER.

• Remove the CHASSIS SHIELD COVER.

• Remove the TERMINAL COVER.

(1) Disconnect the connectors [CN00B], [CN00C], [CN00Q],

[CN00G], [CN00T], [CN00V], [CN00X], [CN0FC], [CN0FN] from the INTERFACE PWB.

(2) Remove the 2 screws [M], and withdraw the INTERFACE

PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.1.6 REMOVING THE REGULATOR PWB (Fig.2)

• Remove the REAR COVER.

• Remove the CENTER COVER.

• Remove the CHASSIS SHIELD COVER.

• Remove the TERMINAL COVER.

• Remove the INTERFACE PWB.

(1) Disconnect the connectors [CN003], [CN008], [CN00D]

from the REGULATOR PWB.

(2) Remove the 4 screws [N], and remove the REGULATOR

PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.1.7 REMOVING THE LINE FILTER PWB (Fig.2)

• Remove the REAR COVER.

• Remove the CENTER COVER.

• Remove the CHASSIS SHIELD COVER.

• Remove the TERMINAL COVER.

• Remove the INTERFACE PWB.

(1) Remove the 1 screw [O] and the 1 screw [P], and remove

the AC INLET PANEL.

(2) Disconnect the connector [CN8001] from the MAIN POWER

PWB.

(3) Remove the 1 screw [Q], the 1 screw [R] and the 2 screws

[S], and remove the LINE FILTER PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

1-12 (No.YA101)

3.1.8 REMOVING THE RECEIVER PWB (Fig.2)

• Remove the REAR COVER.

• Remove the CENTER COVER.

• Remove the CHASSIS SHIELD COVER.

• Remove the TERMINAL COVER.

(1) Disconnect the connectors [CN00A], [CN00T] from the

RECEIVER PWB.

(2) Withdraw the RECEIVER PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.1.9 REMOVING THE ANALOG SIGNAL PWB (Fig.2)

• Remove the REAR COVER.

• Remove the CENTER COVER.

• Remove the CHASSIS SHIELD COVER.

• Remove the TERMINAL COVER.

• Remove the RECEIVER PWB.

(1) Disconnect the connectors [CN00F], [CN00G], [CN0J01],

[CN0J02] from the ANALOG SIGNAL PWB.

(2) Remove the 4 screws [T], and remove the ANALOG SIGNAL

PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.1.10 REMOVING THE DIGITAL SIGNAL PWB (Fig.2)

• Remove the REAR COVER.

• Remove the CENTER COVER.

• Remove the CHASSIS SHIELD COVER.

• Remove the TERMINAL COVER.

(1) Disconnect the connectors [CN001], [CN002], [CN003],

[CN0FC], [CN0LV2] from the DIGITAL SIGNAL PWB.

(2) Remove the 5 screws [U], and remove the DIGITAL SIGNAL

PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.1.11 REMOVING THE MAIN BASE, CHASSIS BASE AND AUDIO PWB BASE (Fig.2)

• Remove the REAR COVER.

• Remove the CENTER COVER.

• Remove the CHASSIS SHIELD COVER.

• Remove the TERMINAL COVER.

• Remove the AUDIO PWB.

• Remove the AV JACK PWB.

• Remove the INTERFACE PWB.

• Remove the REGULATOR PWB.

• Remove the LINE FILTER PWB.

• Remove the RECEIVER PWB.

• Remove the ANALOG SIGNAL PWB.

• Remove the DIGITAL SIGNAL PWB.

(1) Remove the 1 screw [V], and remove the DIGITAL

TERMINAL COVER. (2) Remove the 1 screw [W]. (3) Lift the MAIN BASE upright and remove it. (4) Remove the 2 screws [X], and remove the CHASSIS BASE. (5) Remove the 1 screw [Y], and remove the AUDIO PWB BASE.

RECEIVER PWB

INTERFACE PWB

(x4)

(x2)

ANALOG SIGNAL PWB

(x5)

DIGITAL SIGNAL PWB

DIGITAL TEMINAL COVER

MAIN BASE

(x4)

REGULATOR PWB

LINE FILTER

PWB

(x4)

AC INLET PANEL

CHASSIS BASE

AV JACK PWB

(x4)

AUDIO CHASSIS COVER

AUDIO PWB

AUDIO PWB BASE

TOP

Fig. 2

(No.YA101) 1-13

3.1.12 REMOVING THE FRONT CONTROL PWB (Fig.3)

• Remove the REAR COVER.

• Remove the CENTER COVER.

(1) Remove the 4 screws [Z] and the 2 screws [a]. (2) Disconnect the connectors [CN00F], [CN00T] from the

FRONT CONTROL PWB.

(3) Remove the FRONT CONTROL PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.1.13 REMOVING THE FRONT LED PWB (Fig.3)

• Remove the REAR COVER.

• Remove the CENTER COVER.

• Remove the FRONT CONTROL COVER.

(1) Remove the 2 screws [b], and withdraw the FRONT PWB

BASE.

(2) Disconnect the connector [CN00X] from the FRONT LED

PWB.

(3) Remove the 2 screws [c], and remove the FRONT LED

PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.1.14 REMOVING THE TEMP. SENSOR PWB (Fig.3)

• Remove the REAR COVER.

(1) Disconnect the connector [CN00V] from the TEMP.

SENSOR PWB.

(2) Remove the 1 screw [d], and remove the TEMP. SENSOR

PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.1.17 REMOVING THE PDP UNIT (Fig.3)

• Remove the REAR COVER.

• Remove the CENTER COVER.

• Remove the CHASSIS SHIELD COVER.

• Remove the TERMINAL COVER.

• Remove the MAIN BASE, CHASSIS BASE and AUDIO PWB

BASE (with each PWB affixed on the MAIN BASE, CHASSIS BASE and AUDIO PWB BASE).

• Remove the TEMP. SENSOR PWB.

• Remove the MAIN POWER PWB.

• Remove the SUB POWER PWB.

(1) Remove the 8 screws [g] and the 8 screws [h], and remove

the BACK FRAME. (2) Lift the PDP UNIT upright and remove it with enough care

not to impose shock to the PDP UNIT.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

CAUTION:

• Two or more people are required to remove the PDP UNIT.

• The gas pouring port is covered with the protection material.

In operation, be careful not to damage the gas pouring port.

• Do not touch the front side (glass) of the PDP with your

fingers.

3.1.15 REMOVING THE MAIN POWER PWB (Fig.3)

• Remove the REAR COVER.

(1) Disconnect the connectors [CN8001], [CN8002],

[CN8003], [CN8006], [CN8008], [CN8009], [CN9001] from the MAIN POWER PWB.

(2) Remove the 7 screws [e], and remove the MAIN POWER

PWB and the POWER PWB BRACKET.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.1.16 REMOVING THE SUB POWER PWB (Fig.3)

• Remove the REAR COVER.

(3) Disconnect the connectors [CN9001], [CN9005] [CN9010]

from the SUB POWER PWB.

(4) Remove the 4 screws [f], and remove the SUB POWER

PWB and the INSULATOR.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

1-14 (No.YA101)

(x4)

INSULATOR

MAIN POWER PWB

(x7)

(x4)

SUB POWER PWB

TEMP. SENSOR PWB

GAS insertion

hole

PDP UNIT

BACK FRAME

INSULATOR

POWER PWB BRACKET

(x2)

(x4)

FRONT CONTROL PWB

(x2)

TOP

Fig. 3

FRONT LED PWB

FRONT PWB BASE

(x2)

(No.YA101) 1-15

3.1.18 REMOVING THE PWB IN PDP UNIT

3.1.18.1 REMOVING THE X-MAIN PWB (Fig.4)

• Remove the PDP UNIT.

(1) Disconnect the connectors [CN4001], [CN4002],

[CN4003], [CN4004], [CN4005] from the X-MAIN PWB.

(2) Remove the 8 screws [i], and remove the X-MAIN PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.1.18.2 REMOVING THE Y-MAIN PWB (Fig.4)

• Remove the PDP UNIT.

(1) Disconnect the connectors [CN5001], [CN5002],

[CN5003], [CN5004], [CN5005], [CN5006], [CN5007], [CN5008] from the Y-MAIN PWB.

(2) Remove the 7 screws [j], and remove the Y-MAIN PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.1.18.5 REMOVING THE Y-BUFFER-L PWB (Fig.4)

• Remove the PDP UNIT.

(1) Disconnect the connectors [CN5501], [CN5502],

[CN5503], [CN5504], [CN5505], [CN5506] from the Y-

BUFFER-L PWB. (2) Remove the 5 screws [n], and remove the Y-BUFFER-L

PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.1.18.6 REMOVING THE E-BUFFER PWB (Fig.4)

• Remove the PDP UNIT.

(1) Disconnect the connectors [CN401], [CN806], [EC1], [EC2],

[EC3], [EC4], [EC5], [EC6], [EF1] from the E-BUFFER PWB. (2) Remove the 6 screws [o], and remove the E-BUFFER PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.1.18.3 REMOVING THE LOGIC-MAIN PWB (Fig.4)

• Remove the PDP UNIT.

(1) Disconnect the connectors [CN101], [CN201], [CN401],

[CN402], [CN403], [CN803] from the LOGIC-MAIN PWB.

(2) Remove the 7 screws [k], and remove the LOGIC-MAIN

PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.1.18.4 REMOVING THE Y-BUFFER-U PWB (Fig. 4)

• Remove the PDP UNIT.

(1) Disconnect the connectors [CN5401], [CN5402],

[CN5403], [CN5404], [CN5405], [CN5406] from the YBUFFER-U PWB.

(2) Remove the 5 screws [m], and remove the Y-BUFFER-U

PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

(x7)

3.1.18.7 REMOVING THE F-BUFFER PWB (Fig.4)

• Remove the PDP UNIT.

(1) Disconnect the connectors [CN402], [FC1], [FC2], [FE1],

[FG1] from the F-BUFFER PWB. (2) Remove the 3screws [p], and remove the F-BUFFER PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.1.18.8 REMOVING THE G-BUFFER PWB (Fig.4)

• Remove the PDP UNIT.

(1) Disconnect the connectors [CN403], [GC1], [GC2], [GC3],

[GC4], [GC5], [GC6], [GF1] from the G-BUFFER PWB. (2) Remove the 6 screws [q], and remove the G-BUFFER

PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

X-MAIN PWB

(x8)

(x6)

1-16 (No.YA101)

(x5)

Y-BUFFER-U PWB

Y-BUFFER-L PWB

Y-MAIN PWB

E-BUFFER PWB

(x5)

Fig. 4

F-BUFFER PWB

LOGIC-MAIN PWB

(x6)

G-BUFFER PWB

(x3)

3.1.19 REMOVING THE SPEAKER (Fig.5)

• Remove the REAR COVER

• Remove the CENTER COVER.

• Remove the CHASSIS SHIELD COVER.

• Remove the TERMINAL COVER.

• Remove the MAIN BASE, CHASSIS BASE and AUDIO PWB

BASE (with each PWB affixed on the MAIN BASE, CHASSIS

BASE and AUDIO PWB BASE). (1) Remove the 3 screws [r], and remove the SPEAKER. (2) Follow the same steps when removing the other hand

SPEAKER.

CAUTION:

• Please do not disassembly the SPEAKER.

When the speaker is decomposed, the performance cannot

be kept.

3.1.20 REMOVING THE FRONT PANEL AND THE FRONT FILTER (Fig.5)

• Remove the REAR COVER

• Remove the CENTER COVER.

• Remove the CHASSIS SHIELD COVER.

• Remove the TERMINAL COVER.

• Remove the MAIN BASE, CHASSIS BASE and AUDIO PWB

BASE (with each PWB affixed on the MAIN BASE, CHASSIS BASE and AUDIO PWB BASE).

• Remove the PDP UNIT.

(1) Remove the 8 screws [s]. (2) Lift the FRAME BRACKETS and FRONT FILTER upright

and remove it with enough care not to damage the FRONT

FILTER. (3) Remove the FRONT PANEL. (4) Remove the 16 screws [t], and remove the FILTER

BRACKET. (5) Remove the FRONT FILTER.

3.1.21 REMOVING THE TOP FRAME, BOTTOM FRAME AND SIDE FRAME (Fig.5)

• Remove the REAR COVER

• Remove the CENTER COVER.

• Remove the CHASSIS SHIELD COVER.

• Remove the TERMINAL COVER.

• Remove the MAIN BASE, CHASSIS BASE and AUDIO PWB

BASE (with each PWB affixed on the MAIN BASE, CHASSIS BASE and AUDIO PWB BASE).

• Remove the PDP UNIT.

• Remove the FRONT FILTER.

(1) Remove the 4 bosses [u] and the 8 screws [v], and remove

the TOP FRAME, BOTTOM FRAME and SIDE FRAME.

(x2)

t (x5)

SIDE FRAME

(x3)

FRONT FILTER

(x2)

TOP FRAME

(x4)

(x2)

s(x4)

SIDE FRAME

BOTTOM FRAME

t (x3)

FILTER BRACKET

(x2)

t (x5)

(x3)

SPEAKER

TOP

r(x3)

Fig. 5

FRONT PANEL

(No.YA101) 1-17

3.2 DISASSEMBLY PROCEDURE [PD-Z35DV4, PD-Z35DV4/S]

CAUTION:

• When exchanging parts etc. with the front side (PDP side)

facing down, please place a protection sheet below before starting, so as to prevent scratches on the front side.

3.2.1 REMOVING THE REAR COVER (Fig.6)

(1) Remove the power cord. (2) Remove the 14 screws [A], the 6 screws [B] and the 8

screws [C], and remove the REAR COVER.

(x6)

(x14)

3.2.2 REMOVING THE TERMINAL COVER AND CENTER COVER (Fig.6)

• Remove the REAR COVER.

(1) Remove the 7 screws [D], and remove the CHASSIS

SHIELD COVER.

(2) Remove the 6 screws [E], and remove the CENTER

COVER.

(3) Disconnect the COAXIAL CABLE. (4) Remove the 6 screws [F], the 12 screws [G], the 1 screw

[H], and the 1 connector [I], and remove the TERMINAL COVER.

(x8)

REAR COVER

COAXIAL CABLE

CHASSIS

(x7)

SHIELD COVER

(x2)

(x12)

(x6)

(x2)

TERMINAL COVER

(x2)

1-18 (No.YA101)

CENTER COVER

Fig. 6

3.2.3 REMOVING THE AUDIO PWB (Fig. 7)

• Remove the REAR COVER.

(1) Remove the 4 screws [J], and remove the AUDIO CHASSIS

COVER.

(2) Disconnect the connectors [CN600B], [CN600C],

[CN600Y], [CN60SL], [CN60SR] from the AUDIO PWB.

(3) Remove the 4 screws [K], and remove the AUDIO PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.2.4 REMOVING THE AV JACK PWB (Fig.7)

• Remove the REAR COVER.

• Remove the CENTER COVER.

• Remove the CHASSIS SHIELD COVER.

• Remove the TERMINAL COVER.

(1) Disconnect the connectors [CN0J01], [CN0J02] from the

AV JACK PWB.

(2) Remove the 4 screws [L], and remove the AV JACK PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.2.5 REMOVING THE INTERFACE PWB (Fig.7)

• Remove the REAR COVER.

• Remove the CENTER COVER.

• Remove the CHASSIS SHIELD COVER.

• Remove the TERMINAL COVER.

(1) Disconnect the connectors [CN00B], [CN00C], [CN00Q],

[CN00G], [CN00T], [CN00V], [CN00X], [CN0FC], [CN0FN] from the INTERFACE PWB.

(2) Remove the 2 screws [M], and withdraw the INTERFACE

PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.2.6 REMOVING THE REGULATOR PWB (Fig.7)

• Remove the REAR COVER.

• Remove the CENTER COVER.

• Remove the CHASSIS SHIELD COVER.

• Remove the TERMINAL COVER.

• Remove the INTERFACE PWB.

(1) Disconnect the connectors [CN003], [CN008], [CN00D]

from the REGULATOR PWB.

(2) Remove the 4 screws [N], and remove the REGULATOR

PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.2.7 REMOVING THE LINE FILTER PWB (Fig.7)

• Remove the REAR COVER.

• Remove the CENTER COVER.

• Remove the CHASSIS SHIELD COVER.

• Remove the TERMINAL COVER.

• Remove the INTERFACE PWB.

(1) Remove the 1 screw [O] and the 1 screw [P], and remove

the AC INLET PANEL.

(2) Disconnect the connector [CN8001] from the MAIN POWER

UNIT.

(3) Remove the 1 screw [Q] and the 2 screw [R], and remove

the LINE FILTER PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.2.8 REMOVING THE RECEIVER PWB (Fig.7)

• Remove the REAR COVER.

• Remove the CENTER COVER.

• Remove the CHASSIS SHIELD COVER.

• Remove the TERMINAL COVER.

(1) Disconnect the connectors [CN00A], [CN00T] from the

RECEIVER PWB.

(2) Withdraw the RECEIVER PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.2.9 REMOVING THE ANALOG SIGNAL PWB (Fig.7)

• Remove the REAR COVER.

• Remove the CENTER COVER.

• Remove the CHASSIS SHIELD COVER.

• Remove the TERMINAL COVER.

• Remove the RECEIVER PWB.

(1) Disconnect the connectors [CN00F], [CN00G], [CN0J01],

[CN0J02] from the ANALOG SIGNAL PWB.

(2) Remove the 4 screws [S], and remove the ANALOG SIGNAL

PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.2.10 REMOVING DIGITAL SIGNAL PWB (Fig.7)

• Remove the REAR COVER.

• Remove the CENTER COVER.

• Remove the CHASSIS SHIELD COVER.

• Remove the TERMINAL COVER.

(1) Disconnect the connectors [CN001], [CN002], [CN003],

[CN0FC], [CN0LV2] from the DIGITAL SIGNAL PWB.

(2) Remove the 5 screws [T], and remove the DIGNTAL

SIGNAL PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.2.11 REMOVING THE MAIN BASE, CHASSIS BASE AND AUDIO PWB BASE (Fig.7)

• Remove the REAR COVER.

• Remove the CENTER COVER.

• Remove the CHASSIS SHIELD COVER.

• Remove the TERMINAL COVER.

• Remove the AUDIO PWB.

• Remove the AV JACK PWB.

• Remove the INTERFACE PWB.

• Remove the REGULATOR PWB.

• Remove the LINE FILTER PWB.

• Remove the RECEIVER PWB.

• Remove the ANALOG SIGNAL PWB.

• Remove the DIGITAL SIGNAL PWB.

(1) Remove the 1 screw [U], and remove the DIGITAL

TERMINAL COVER. (2) Remove the 1 screw [V]. (3) Lift the MAIN BASE upright, and remove it.

Remove the 2 screws [W], and remove the CHASSIS BASE.

(4) (5)

Remove the 1 screw [X], and remove the AUDIO PWB BASE.

(No.YA101) 1-19

(x4)

ANALOG SIGNAL PWB

(x5)

RECEIVER PWB

REGULATOR PWB

INTERFACE PWB

(x4)

(x2)

LINE FILTER PWB

AC INLET PANEL

(x4)

DIGITAL SIGNAL PWB

AV JACK PWB

(x4)

MAIN BASE

(x4)

AUDIO PWB

DIGITAL TEMINAL COVER

CHASSIS BASE

AUDIO CHASSIS COVER

AUDIO PWB BASE

1-20 (No.YA101)

TOP

Fig. 7

3.2.12 REMOVING THE FRONT CONTROL PWB (Fig.8)

• Remove the REAR COVER.

• Remove the CENTER COVER.

(1) Remove the 4 screws [Y] and the 2 screws [Z]. (2) Disconnect the connectors [CN00F], [CN00T] from the

FRONT CONTROL PWB.

(3) Remove the FRONT CONTROL PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.2.13 REMOVING THE FRONT LED PWB (Fig.8)

• Remove the REAR COVER.

• Remove the CENTER COVER.

• Remove the FRONT CONTROL COVER.

(1) Remove the 2 screws [a], and remove the FRONT PWB

BASE.

(2) Disconnect the connector [CN00X] from the FRONT LED

PWB.

(3) Remove the 2 screws [b], and remove the FRONT LED

PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.2.14 REMOVING THE TEMP. SENSOR PWB (Fig.8)

• Remove the REAR COVER.

(1) Disconnect the connector [CN00V] from the TEMP.

SENSOR PWB.

(2) Remove the 1 screw [c], and remove the TEMP. SENSOR

PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.2.17 REMOVING THE POWER PWB BASE (Fig.8)

• Remove the REAR COVER.

• Remove the TEMP. SENSOR PWB.

• Remove the MAIN POWER UNIT.

• Remove the SUB POWER PWB

(1) Remove the 4 screws [f], and remove the POWER PWB

BASE.

3.2.18 REMOVING THE PDP UNIT (Fig.8)

• Remove the REAR COVER.

• Remove the CENTER COVER.

• Remove the CHASSIS SHIELD COVER.

• Remove the TERMINAL COVER.

• Remove the MAIN BASE, CHASSIS BASE anb AUDIO PWB

BASE (with each PWB affixed on the MAIN BASE, CHASSIS BASE and AUDIO PWB BASE).

• Remove the POWER PWB BASE (with each PWB affixed

on the POWER PWB BASE).

(1) Remove the 8 screws [g] and the 8 screws [h], and remove

the BACK FRAME. (2) Lift the PDP UNIT upright and remove it with enough care

not to impose shock to the PDP UNIT. (3) Remove the 8 screws [i], and remove the BACK FRAME

SPACERS.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

CAUTION:

• Two or more people are required to remove the PDP UNIT.

• The gas pouring port is covered with the protection material.

In operation, be careful not to damage the gas pouring port.

• Do not touch the front side (glass) of the PDP with your

fingers.

3.2.15 REMOVING THE MAIN POWER UNIT (Fig.8)

• Remove the REAR COVER.

(1) Disconnect the connectors [CN8001], [CN8003],

[CN8005], [CN8009], [CN9001] from the MAIN POWER UNIT.

(2) Remove the 6 screws [d], and remove the MAIN POWER

UNIT.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.2.16 REMOVING THE SUB POWER PWB (Fig.8)

• Remove the REAR COVER.

(1) Disconnect the connectors [CN9001], [CN9005] [CN9010]

from the SUB POWER PWB.

(2) Remove the 4 screws [e], and remove the SUB POWER

PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

(No.YA101) 1-21

(x4)

SUB POWER PWB

(x2)

(x6)

TEMP.SENSOR PWB

MAIN POWER UNIT

(x2)

(x4)

POWER PWB BASE

(x2)

BACK FRAME

BACK FRAME SPECER

GAS insertion

hole

FRONT CONTROL PWB

1-22 (No.YA101)

TOP

PDP UNIT

Fig. 8

FRONT PWB BASE

FRONT LED PWB

(x2)

3.2.19 REMOVING THE PWB IN PDP UNIT

3.2.19.1 REMOVING THE PANEL POWER PWB (Fig.9)

• Remove the PDP UNIT.

(1) Disconnect the connectors [CN200], [CN305], [CN315]

from the PANEL POWER PWB.

(2) Remove the 12 screws [j] and the 9 screws [k], and remove

the PANEL POWER PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.2.19.2 REMOVING THE LOGIC CONTROL PWB (Fig.9)

• Remove the PDP UNIT.

(1) Disconnect the connectors [CN401], [CN402], [CN601],

[CN701] from the LOGIC CONTROL PWB.

(2) Remove the 4 screws [m], and remove the LOGIC

CONTROL PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.2.19.3 REMOVING THE COMMON DRIVE PWB (Fig.9)

• Remove the PDP UNIT.

(1) Disconnect the connectors [CN1], [CN2], [CN3] from the

COMMON DRIVE PWB.

(2) Remove the 4 screws [n] and the 4 screws [o], and remove

the COMMON DRIVE PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.2.19.4 REMOVING THE SCANNING DRIVE PWB (Fig. 9)

• Remove the PDP UNIT.

(1) Disconnect the connectors [CN222], [CN223], [CN224],

[CN226], [CN227] from the SCANNING DRIVE PWB.

(2) Remove the 8 screws [p] and the 2 screws [q], and remove

the SCANNING DRIVE PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.2.19.5 REMOVING THE SIGNAL DRIVE-L PWB (Fig.9)

• Remove the PDP UNIT.

(1) Remove the 7 screws [r], and remove the HEAT SINK. (2) Disconnect the connectors [CN6], [CN7], [CN8], [CN9],

[CN10], [CN13], [CN14], [CN15] from the SIGNAL DRIVE-

L PWB. (3) Remove the 5 screws [s], and remove the SIGNAL DRIVE-

L PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.2.18.6 REMOVING THE SIGNAL DRIVE-R PWB (Fig.9)

• Remove the PDP UNIT.

(1) Remove the 8 screws [r], and remove the HEAT SINK. (2) Disconnect the connectors [CN1], [CN2], [CN3], [CN4],

[CN5], [CN11], [CN12], [CN16] from the SIGNAL DRIVE-R

PWB. (3) Remove the 4 screws [t], and remove the SIGNAL DRIVE-

R PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.2.19.7 REMOVING THE BRIDGE PWB (Fig.9)

• Remove the PDP UNIT.

(1) Remove the 8screws [u] and the 5 screws [v], and remove

the BRIDGE PWB.

(x4)

BRIDGE PWB

COMMON DRIVE PWB

(x5)

(x4)

(x9)

(x4)

LOGIC CONTROL PWB

SIGNAL DRIVE-L PWB

(x4)

HEAT SINK

Fig. 9

(x8)

SIGNAL DRIVE-R PWB

(x8)

(x5)

(x2)

SCANNING DRIVE PWB

(x7)

PDP UNIT

PANEL POWER PWB

(x4)

GAS insertion

hole

(No.YA101) 1-23

3.2.20 REMOVING THE SPEAKER (Fig.10)

• Remove the REAR COVER

• Remove the CENTER COVER.

• Remove the CHASSIS SHIELD COVER.

• Remove the TERMINAL COVER.

• Remove the MAIN BASE, CHASSIS BASE and AUDIO PWB

BASE (with each PWB affixed on the MAIN BASE, CHASSIS

BASE and AUDIO PWB BASE). (1) Remove the 3 screws [w], and remove the SPEAKER. (2) Follow the same steps when removing the other hand

SPEAKER.

CAUTION:

• Please do not disassembly the SPEAKER.

When the speaker is decomposed, the performance cannot

be kept.

3.2.21 REMOVING THE FRONT PANEL AND THE FRONT FILTER (Fig.10)

• Remove the REAR COVER

• Remove the CENTER COVER.

• Remove the CHASSIS SHIELD COVER.

• Remove the TERMINAL COVER.

• Remove the MAIN BASE, CHASSIS BASE and AUDIO PWB

BASE (with each PWB affixed on the MAIN BASE, CHASSIS BASE and AUDIO PWB BASE).

(x4)

(x2)

• Remove the PDP UNIT.

(1) Remove the 6 screws [x]. (2) Lift the FRAME BRACKETS and FRONT FILTER upright

and remove it with enough care not to damage the FRONT

FILTER. (3) Remove the FRONT PANEL. (4) Remove the 12 screws [y], and remove the FILTER

BRACKET. (5) Remove the FRONT FILTER.

3.2.22 REMOVING THE TOP FRAME, BOTTOM FRAME AND SIDE FRAME (Fig.10)

• Remove the REAR COVER

• Remove the CENTER COVER.

• Remove the CHASSIS SHIELD COVER.

• Remove the TERMINAL COVER.

• Remove the MAIN BASE, CHASSIS BASE and AUDIO PWB

BASE (with each PWB affixed on the MAIN BASE, CHASSIS BASE and AUDIO PWB BASE).

• Remove the PDP UNIT.

• Remove the FRONT FILTER.

(1) Remove the 8 screws [z], and remove the TOP FRAME,

BOTTOM FRAME and SIDE FRAME.

(x2)

SIDE FRAME

TOP FRAME

(x2)

SIDE FRAME

BOTTOM FRAME

(x2)

(x4)

FRONT FILTER

SPEAKER

(x4)

FILTER BRACKET

(x2)

(x3)

TOP

1-24 (No.YA101)

(x3)

SPEAKER

FRONT PANEL

Fig. 10

3.3 REPLACEMENT OF MEMORY IC

SERVICE MENU SCREEN

ADJUST MODE SCREEN

3.3.1 MEMORY IC

This unit uses the nonvolatile memory IC. The memory IC memories data for video and deflection circuits. To replace the memory IC without the data written, malfunctions might occurred while power is on, and the normal image might not appear. When replacing the memory IC, be sure to use the IC written with the initial values of data.

3.3.2 PROCEDURE FOR REPLACING THE MEMORY IC

1. Power off

Switch the power off and unplug the power cord from the

SERVICE MENU SCREEN

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.

SERVICE MENU

1. ADJUST

2. SELF_CHECK

3. I2C STOP

3. Power on

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

4. Receive channel setting

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

5. User setting

ADJUST MODE SCREEN

Check the user setting values in Table 1 to Table 3. If setting value is different, set the correct value. For setting, refer to the OPERATING INSTRUCTIONS.

6. Setting of SERVICE MENU

Verify the setting for each setting item in the SERVICE

S001 PREPATE 0 PAL50 FULL STD M

MENU.(See Table 4.) If readjustment is necessary, perform adjustment referring to “ADJUSTMENTS PROCEDURE”.

3.3.3 FACTORY SETTING VALUE

3.3.3.1 SETTING OF SWITCHS ON FRONT SIDE OF MAIN BODY

Setting item Setting value

POWER OFF CHANNEL PR1 VOLUME 10 INPUT TV

Table 1

3.3.3.2 SETTING OF REMOTE CONTROL UNIT

Setting item Setting value

ZOOM PANORAMIC MULTI PICTURE 1 SCREEN CINEMA SURROUND OFF

Table 2

Fig.1

(No.YA101) 1-25

3.3.3.3 SETTING OF MENU SCREEN

Setting item Setting value

PICTURE SETTING

PICTURE MODE BRIGHT CONTRAST +6 BRIGHT 0 SHARP +5 COLOUR +3 TINT 0 WHITE BALANCE MID

PICTURE FEATURES

DIGITAL VNR MIN Super DigiPure AUTO PULL DOWN AUTO COLOUR MANAGEMENT ON PICTURE MANAGEMENT ON COLOUR SYSTEM MAIN : AUTO

SUB: AUTO

4:3 AUTO ASPECT PANO RAMIC

SOUND SETTING

STEREO / I•II Stereo sound BASS Center TREBLE Center BALANCE Center CINEMA SURROUND OFF A.H.B. OFF BBE OFF SPEAKER TV

Setting item Setting value

FEATURES

SLEEP TIMER OFF APPEARANCE TYPE A BLUE BACK ON CHILD LOCK OFF AUTO SHUT OFF OFF REFRESH OFF

SET UP

EDIT Only for PR / CH LANGUAGE ENGLISH VIDEO-1 SETTING COMPONENT VIDEO-3 SETTING COMPONENT AI VOLUME ON TELETEXT LANGUAGE GROUP-1 PICTURE SHIFT FAST

Table 3

3.3.3.4 SERVICE MENU SETTING ITEMS

Service menu Setting item

1. ADJUST

2. SELF CHECK

3. I2C STOP

CAUTION

When a number key other than the [1] to [3] key is pressed in the SERVICE MENU screen, the other relevant screen may be displayed. This is not used in the adjustment procedure. Press the [MENU] key to return to the SERVICE MENU.

S001 ~ S039

T001 ~ T010

P001 ~ P010

D001 ~ D187

Z001 ~ Z010

[Refer to “SECTION 5

TROUBLESHOOTING” (page 1-40)]

[Do not adjust]

Table 4

1-26 (No.YA101)

3.4 REPLACEMENT OF CHIP COMPONENT

3.4.1 CAUTIONS

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

3.4.2 SOLDERING IRON

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

3.4.3 REPLACEMENT STEPS

1. How to remove 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 tweezers and remove the chip part.

2. How to install Chip parts

[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 extra solder to each lead.

SOLDER

(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.

[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.

(4) Then solder leads B and C.

(No.YA101) 1-27

SECTION 4

SERVICE MENU SCREEN

ADJUST SCREEN

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 which set the screen to its optimum condition may differ from the initial settings.

(3) Make sure that AC power is turned on correctly. (4) Turn on the power for 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.

(7) Presetting before adjustment.

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

4. 2 PRESETTING BEFORE ADJUSTMENT

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

4.4 BASIC OPERATION OF THE SERVICE MENU

4.4.1 TOOL OF SERVICE MENU OPERATION

Operate the SERVICE MENU with the remote control unit.

4.4.2 HOW TO ENTER THE SERVICE MENU

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

simultaneously, and the SERVICE MENU screen of Fig.1 will be displayed.

4.4.3 SELECT THE SERVICE MENU ITEM

(1) When the Main Menu is displayed, press any key of the [1]

to [3] key to enter the corresponding menu mode.

CAUTION:

4.4.4 SELECT THE SETTING ITEM AND SETTING VALUE

(1) Select the service item using the [FUNCTION (/)] key. (2) Set the value using the [FUNCTION ( (3) Press the [MUTING] key to memorize the set value.

/)] key.

Setting item Settings

PICTURE MODE STANDARD PICTURE adjustments All center (00) WHITE BALANCE MID DIGITAL VNR MIN Super DigiPure AUTO PULL DOWN AUTO COLOUR MANAGEMENT ON PICTURE MANAGEMENT ON SOUND adjustments All center (00) CINEMA SURROUND OFF A.H.B OFF BBE OFF ZOOM FULL

4.3 MEASURING INSTRUMENT AND FIXTURES

• DC voltmeter (or Digital voltmeter)

• Signal generator (Pattern generator)

[PAL / SECAM / NTSC /625i COMPONENT / 1125i / PC (VGA)]

• Remote control unit

SERVICE MENU SCREEN

SERVICE MENU

1. ADJUST

2. SELF_CHECK

3. I2C STOP

ADJUST SCREEN

S001 PREPATE 0 PAL50 FULL STD M

Fig.1

4.4.5 HOW TO EXIT THE SERVICE MENU MODE

Press the [MENU] key to exit the Service Menu mode.

1-28 (No.YA101)

4.4.6 SERVICE CONTROL KEY LAYOUT ON THE REMOTE CONTROL UNIT

MUTING

1~3

FUNCTION /

DISPLAY

FUNCTION /

Fig.2

4.4.7 SETTING OF THE SERVICE MENUS

4.4.7.1 [1.ADJUST]

[Do not change setting values of items that are not included in the “ADJUSTMENT PROCEDURE”. They are fixed values]

Set output data of the port of the video, audio, panel control, drive and main CPU setting.

(1 ) SIGNAL

The signal displayed on the screen is displayed.

PAL50 : PAL50Hz (Composite / S-video) PAL60 : PAL60Hz (Composite / S-video) SECAM : SECAM NTSC3 : NTSC3.58 NTSC4 : NTSC4.43 525I : 525i (Component) 525P : 525p 625I : 625i (Component) 625P : 625p 750P : 750p 1125I5 : 1125i 50Hz 1125I6 : 1125i 60Hz PCVGA : PC (VGA)

(2) SCREEN SIZE / MULTI PICTURE

State of the SCREEN SIZE or MULTI PICTURE is displayed.

• SCREEN SIZE

FULL : FULL PANO : PANORAMIC 1609 : 16:9 ZOOM 1609S : 16:9 ZOOM SUBTITLE 1409 : 14:9 ZOOM REGU : REGULAR

• MULTI PICTURE

M2 : 2 pictures M12 : 12 pictures

(3) PICTURE MODE

The PICTURE MODE is displayed.

STD : STANDARD BRI : BRIGHT SOFT : SOFT GAME : GAME

(4) WHITE BALANCE

The WHITE BALANCE is displayed.

H : WARM M : MID L : COOL

(5) ITEM No.

The ITEM No. is displayed.

• [Function (/)] key

For scrolling up / down the setting items.

→→

→ S001...

→→

↔↔

↔ T001...

↔↔

↔ P001...

↔↔

↔ D001...

↔↔

↔ Z001...

↔↔

←←

←

←←

(6) SETTING VALUE

The SETTING VALUE is displayed.

• [Function (/)] key

For scrolling up / down the setting values.

Item No. Setting items

S001~S039 This item adjusts the setting values of the video

circuit.

T001~T010 This item adjusts the setting values of the

audio circuit.

P001~P010 This item adjusts the setting values of the

panel control circuit.

D001~D187 This item adjusts the setting values of the drive

circuit.

Z001~Z010 This item adjusts the setting values of the main

CPU circuit.

4.4.7.2 [2.SELF CHECK]

[Refer to “SECTION 5 TROUBLESHOOTING” (page 1-40)]

4.4.7.3 [3.I2C STOP]

[Setting for this item is not required in servicing]

(5) ITEM NO.

S001 PREPATE 0 PAL50 FULL STD M

(1) SIGNAL (3) PICTURE MODE

(2) SCREEN SIZE / MULTI PICTURE

(6) SETTING VALUE

(4) WHITE BALANCE

Fig.3

(No.YA101) 1-29

4.5 INITIAL SETTING VALUES IN THE SERVICE MENU SETTING MODE

• Perform fine-tuning based on the “initial setting values” using the remote control when in the SERVICE MENU setting mode.

• The “initial setting values” serve only as an indication rough standard and therefore the values with which optimal display can be

achieved may be different from the initial setting values. But, don't change the values that are not written in “ADJUSTMENT PROCEDURE”. They are fixed values.

4.5.1 [1.ADJUST]

4.5.1.1 VIDEO SYSTEM

Item No. Item

S001 PREPARE 0~31 0 0 0 S002 NTSC BL 0~15 0 0 0 S003 NTSC CNT 0~255 39 39 39 S004 NT CR OF 0~15 7 7 7 S005 NT CB OF 0~15 7 7 7 S006 525i BL 0~15 0 0 0 S007 525i CNT 0~255 39 39 39 S008 5i CB OF 0~15 0 0 0 S009 5i CR OF 0~15 0 0 0 S010 5i CR GN 0~15 7 7 7 S011 5i CB GN 0~15 7 7 7 S012 HD BL 0~63 56 56 56 S013 HD CB OF 0~63 54 54 54 S014 HD CR OF 0~63 53 53 53 S015 RT CONT 0~15 7 7 7 S016 RT CB OF 0~15 8 8 8 S017 RT CR OF 0~15 8 8 8 S018 RT CL GA 0~15 4 4 4 S019 PC CL MB 0~7 0 0 0 S020 PC CL LB 0~31 0 0 0 S021 PC CL MR 0~7 0 0 0 S022 PC CL LR 0~31 0 0 0 S023 (NO DISPLAY) 0~255 0 0 0 S024 (NO DISPLAY) 0~255 0 0 0 S025 (NO DISPLAY) 0~255 0 0 0 S026 (NO DISPLAY) 0~255 0 0 0 S027 (NO DISPLAY) 0~255 0 0 0 S028 (NO DISPLAY) 0~255 0 0 0 S029 (NO DISPLAY) 0~255 0 0 0 S030 R DRIVE 0~255 133 133 133 S031 G DRIVE 0~255 119 119 119 S032 B DRIVE 0~255 123 123 123 S033 (NO DISPLAY) 0~255 0 0 0 S034 (NO DISPLAY) 0~255 0 0 0 S035 (NO DISPLAY) 0~255 0 0 0 S036 (NO DISPLAY) 0~255 0 0 0 S037 (NO DISPLAY) 0~255 0 0 0 S038 (NO DISPLAY) 0~255 0 0 0 S039 ILA COM 0~1 0 0 0

Variable range

PAL SECAM NTSC

Setting value

4.5.1.2 AUDIO SYSTEM

Item No. Item

T001 IN LEVEL 0~255 0 0 0 T002 LOW SEP 0~255 0 0 0 T003 HIGH SEP 0~255 0 0 0 T004 AFC 0~255 4 4 4 T005 (NO DISPLAY) 0~255 0 0 0 T006 ATT V ON 0~1 1 1 1 T007 ATT U ON 0~1 1 1 1 T008 ATT C ON 0~1 1 1 1 T009 (NO DISPLAY) 0~255 0 0 0 T010 (NO DISPLAY) 0~255 0 0 0

1-30 (No.YA101)

Variable range

PAL SECAM NTSC

Setting value

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