JVC pd35b50b schematic

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SERVICE MANUAL

PDP COLOUR TELEVISION

PD-35B50BJ, PD-35B50BU PD-42B50BJ, PD-42B50BU

BASIC C

FP2

HASSIS

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

......................................................................................................................................................... 1-4

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...................................................................................................................................................... 1-33

........................................................................................................................................... 1-48

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No.YA098

2004/6

SPECIFICATION

Contents

Items

Dimensions (W x H x D) Mass 38.3kg 30.4kg TV RF System CCIR B / G, I, D / K, L Colour System RF PAL / SECAM

Stereo System A2 (B / G, D / K), NICAM (B / G, I, D / K, L) Teletext System FLOF (Fastext), TOP, WST (World Standard System) Receiving Frequency VHF 47MHz ~ 470MHz

Intermediate Frequency VIF 38.9MHz (B / G, I, D / K, L)

Colour Sub Carrier Frequency

Power Input AC110V ~ AC240V, 50Hz Power Consumption Operate : 303W, Stand by: 3.0W Operate : 244W, Stand by : 3.0W Plasma Display Panel (PDP)  QLE0028-001  QLE0021-002

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

Display Pixels

Speaker 6.6cm round x4 Audio Power Output 10W + 10W (Oblique cone) Aerial Input Teminal 75Ω unbalanced, coaxial External EXT-1 (Input/Output) 21 pin Euro connector (SCART socket)

terminal

EXT-2 (Input/Output) 21 pin Euro connector (SCART socket)

EXT-3 (Input) 21 pin Euro connector (SCART socket)

EXT-4 (Input) COMPONENT VIDEO RCA pin jack x 3

1125i / 750p Y : 1V(p-p), Sync

525i / 525p / 625i / 625p

AUDIO 500mV (rms), High impedance, RCA pin jack x 2

EXT-5 (Input) S-VIDEO Mini-DIN 4 pin x 1

VIDEO 1V(p-p), Positive (Negative sync provided), 75Ω, RCA pin jack x 1

AUDIO 500mV (rms), Low impedance, RCA pin jack x 2

AUDIO OUTPUT (Fixed) 500mV (rms), Low impedance, RCA pin jack x 2

Subwoofur OUTPUT 500mV (rms), Low impedance, RCA pin jack x 1

CENTRE 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-C1811H (AA/R6 TYPE battery x 2)

Design & specifications are subject to change without notice.

1-2 (No.YA098)

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

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

UHF 470MHz ~ 862MHz

CATV 116MHz ~ 172MHz, 220MHz ~ 469MHz

SIF

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

40.45MHz (6.5MHz :L) 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 H: 853 pixels / V: 480 pixels [W-VGA] [W-VGA]

• Video input, S-video (Y / C) input, Audio L / R inputs and RGB inputs are available.

•

TV broadcast outputs (Video and Audio L / R) are available.

•

Video input, S-video (Y / C) input, Audio L / R inputs and RGB inputs are available.

•

Video and Audio L / R outputs are available.

•

T-V LINK functions are available.

•

Video input and Audio L / R inputs are available.

Pb/Pr : ±0.35V(p-p), 75 Y : 1V(p-p), Positive (Negative sync prorided), 75 Cb/Cr :

Y : 1V(p-p), Positive (Negative sync provided), 75 C : 0.286V(p-p) (Burst signal), 75

R/G/B : 0.7V (p-p), 75 HD / VD : 1V (p-p) ~ 5V (p-p), High impedance Available signal VGA : 640 pixels x 480 pixels (Horizontal : 31.5kHz / Vertical : 60Hz)

PD-42B50BJ PD-35B50BJ PD-42B50BU PD-35B50BU

0.7

V(p-p), 75

±0.35V(p-p) terminal x3

Ω

, 75

Ω

21-pin Euro connector (SCART) : EXT-1/EXT-2/EXT-3

PinNo. Signal designation Matching value EXT-1 EXT-2 EXT-3

AUDIO R output

500mV(rms) (Nominal),

Used (TV OUT)

Used (LINE OUT)

Not used

Low impedance

AUDIO R input

500mV(rms) (Nominal),

Used

High impedance

AUDIO L output

500mV(rms) (Nominal),

Used (TV OUT)

Used (LINE OUT)

Not used

Low impedance 4 5 6

AUDIO GND GND (B) AUDIO L input

500mV(rms) (Nominal),

Used Used Used

High impedance 7 8

B input FUNCTION SW (SLOW SW) GND (G) SCL / T-V LINK

700mV(

B-W

), 75Ω Low : 0V-3V, High : 8V-12V, High impedance

Used Used

Used Not used

Used Used

Not used Used

Used Not used

(SCL2/TV-LINK) 11 12 13 14 15

G input SDA GND (R) GND (YS) R / C input

700mV(

B-W

R : 700mV(

), 75Ω

B-W

), 75Ω

Used Not used Used Used Used (C1/R)

Used

Used(SDA2)

Used

Not used

Used (C2/R)

Not used Not used Used Not used Not used

C : 300mV(p-p), 75Ω

17 18 19

Ys input (FAST SW) GND (VIDEO output) GND (VIDEO input) VIDEO output

Low : 0V-0.4V High : 1V-3V, 75Ω

1V(p-p) (Negative going sync),

Used

Used Used Used (TV OUT)

Used

Used (LINE OUT)

Not used

Used Used Not used

75Ω

VIDEO / Y input

1V(p-p) (Negative going sync),

Used

75Ω

COMMON GND

Used

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

[Pin assignment]

20 18 16 14 12 10 8 6 4 2

21 19 17 15 13 11 9 7 5 3 1

(No.YA098) 1-3

SECTION 1

PRECAUTION

1.1 SAFETY PRECAUTIONS [EXCEPT FOR UK]

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

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

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

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

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

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

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

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

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

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

Some model's power circuit is partly different in the GND. The difference of the GND is shown by the LIVE : ( 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

1-4 (No.YA098)

1. 2 SAFETY PRECAUTIONS [FOR UK]

(1) The design of this product contains special hardware and many circuits and components specially designed for safety

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

(2) Alterations of the design or circuitry of the product should not be made. Any design alterations or additions will void the

manufacturer's warranty and may result in personal injury or property damage resulting therefrom.

(3) Many electrical and mechanical parts in the product have special safety-related characteristics. These characteristics are

often not evident from visual inspection nor can the protection afforded by them necessary be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in the Parts List of Service Manual. Electrical components having such features are identified by shading on the schematics and by (  ) on the Parts List in the Service Manual. The use of a substitute replacement which does not have the same safety characteristics as the recommended replacement part shown in the Parts List of Service Manual may cause shock, fire, or other hazards.

(4) The leads in the products are routed and dressed with ties, clamps, tubings, barriers and the like to be separated from live

parts, high temperature parts, moving parts and / or sharp edges for the prevention of electric shock and fire hazard. When service is required, the original lead routing and dress should be observed, and it should be confirmed that they have been returned to normal, after re-assembling.

WARNING

(1) The equipment has been designed and manufactured to meet international safety standards. (2) It is the legal responsibility of the repairer to ensure that these safety standards are maintained. (3) Repairs must be made in accordance with the relevant safety standards. (4) It is essential that safety critical components are replaced by approved parts. (5) If mains voltage selector is provided, check setting for local voltage.

(No.YA098) 1-5

1.3 INSTALLATION

1.3.1 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

1.3.2 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

1.3.3 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

1-6 (No.YA098)

The supplied hook for tipfall prevention

1. 4 PRECAUTIONS REGARDING PDP

1.4.1 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.

1.4.2 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.

1.4.4 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.

1.4.5 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.

1.4.3 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.YA098) 1-7

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.

•

MOVIE THEATRE

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.

• 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).

• 3D SOUND function

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

• Teletext function

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

• T-V LINK function

This function make a VCR could automatically download the data or image from the TV, and turn on the TV to view the image when it playing.

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

TABLE TOP STAND WALL BRACKET NO YES

1-8 (No.YA098)

PD-42B50BJ PD-42B50BU PD-35B50BJ PD-35B50BU

YES NO

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) [42V MODEL] / 0.307 mm (1 plxel 0.921 mm) [35V MODEL] horizontally and 1.110mm [42V MODEL] / 0.921 mm [35V MODEL] 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 [42V MODEL] / 0.307 mm [35V MODEL] horizontally and 1.110mm [42V MODEL] / 0.921 mm [35V MODEL] vertically.

Direction

Vertically

No.1

Pixel line

No.2

Pixel line

No.479

Pixel line

No.480

Pixel line

42V MODEL 35V MODEL

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)

(Horizontally) Pixel pitch

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

B(R) Cell

G(G)

Cell

R(B) Cell

35V MODEL 42V MODEL

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

42V MODEL 35V MODEL

1.110 mm 42V MODEL

0.921 mm 35V MODEL (Vertically)

Pixel pitch

(Cell pitch)

42V MODEL 35V MODEL

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.YA098) 1-9

2.3.2 MAIN CPU [IC7501] PIN FUNCTION

Pin No. Terminal name Port name I/O Remark

1 TCK TCK I Test purpose 2 TMS TMS I Test purpose 3 TDI TDI I Test purpose 4 TDO TDO O Test purpose 5 NC P2.8 O Not used 6 OSDB0 P2.9 O Bule for OSD 7 OSDB1 P2.10 O Bule for OSD 8 OSDB2 P2.11 O Bule for OSD

9 OSDB3 P2.12 O Bule for OSD 10 OSDB4 P2.13 O Bule for OSD 11 TV-LINK P2.14 I TV-LINK communication 12 RX_BUSY(Sirial) P2.15 O Communication for chassis CPU (Request) 13 VSS33 VSS33 - GND 14 VDD33 VDD33 I 3.3V 15 TV_LINK_OUT P4.5/CS3 O TV-LINK communication 16 A20 P4.4/A20 O Memory (Program ROM) address 17 A19 P4.3/A19 O Memory (Program ROM) address 18 A18 P4.2/A18 O Memory (Program ROM) address 19 A17 P4.1/A17 O Memory (Program ROM) address 20 VSS25 VSS25 - GND 21 VDD25 VDD25 I 2.5V 22 A16 P4.0/A16 O Memory (Program ROM) address 23 A8 A8 O Memory (Program ROM) address 24 A7 A7 O Memory (Program ROM) address 25 A9 A9 O Memory (Program ROM) address 26 A6 A6 O Memory (Program ROM) address 27 A5 A5 O Memory (Program ROM) address 28 A10 A10 O Memory (Program ROM) address 29 A11 A11 O Memory (Program ROM) address 30 A12 A12 O Memory (Program ROM) address 31 VSS33 VSS33 - GND 32 VDD33 VDD33 I 3.3V 33 A4 A4 O Memory (Program ROM) address 34 A3 A3 O Memory (Program ROM) address 35 A2 A2 O Memory (Program ROM) address 36 A1 A1 O Memory (Program ROM) address 37 A0 A0 O Memory (Program ROM) address 38 A13 A13 O Memory (Program ROM) address 39 A14/RAS A14/RAS O Memory (Program ROM) address 40 A15/CAS A15/CAS O Memory (Program ROM) address 41 VSS33 VSS33 - GND 42 VDD33 VDD33 I 3.3V 43 MEMCLK MEMCLK O Clock for memory 44 CSSDRAM CSSDRAM O Chip select for memory 45 CLKEN CLKEN O Clock enable for memory 46 CSROM CSROM O Chip select for memory 47 RD RD O Read for memory 48 UDQM UDQM O Control IN / OUT buffer of memory 49 LDQM LDQM O Control IN / OUT buffer of memory 50 WR WR O Write for memory 51 D15 D15 I/O Data (Program ROM) 52 VSS33 VSS33 - GND 53 VDD33 VDD33 I 3.3V 54 D7 D7 I/O Data (Program ROM) 55 D0 D0 I/O Data (Program ROM) 56 D14 D14 I/O Data (Program ROM) 57 D8 D8 I/O Data (Program ROM) 58 D6 D6 I/O Data (Program ROM) 59 D1 D1 I/O Data (Program ROM) 60 VSS33 VSS33 - GND 61 VDD33 VDD33 I 3.3V 62 D13 D13 I/O Data (Program ROM) 63 D9 D9 I/O Data (Program ROM) 64 D5 D5 I/O Data (Program ROM) 65 D2 D2 I/O Data (Program ROM)

1-10 (No.YA098)

Pin No. Terminal name Port name I/O Remark

66 D12 D12 I/O Data (Program ROM) 67 D10 D10 I/O Data (Program ROM) 68 VSS33 VSS33 - GND 69 VDD33 VDD33 I 3.3V 70 D 4 D4 I/O Data (Program ROM) 71 D 3 D3 I/O Data (Program ROM) 72 D11 D11 I/O Data (Program ROM) 73 RSTIN RSTIN I Reset 74 POWER P3.0 O Sleep state release for chassis CPU [Relese : L] 75 ID_TV_POWER(IDTV) P3.1 O Not used 76 REMOCON P3.2 I Remote control 77 PIX CLOCK P3.3 I Clock for OSD 78 OSDR0 P3.4 O Red for OSD 79 OSDR1 P3.5 O Red for OSD 80 OSDR2 P3.6 O Red for OSD 81 OSDR3 P3.7 O Red for OSD 82 MRST(Sirial) P3.8 I/O Communication for chassis CPU (Serial data) 83 MTSR(Sirial) P3.9 I/O Communication for chassis CPU (Serial data) 84 VSS33 VSS33 - GND 85 VDD33 VDD33 I 3.3V 86 VSS25 VSS25 - GND 87 VDD25 VDD25 I 2.5V 88 MICON TX TXD0 I/O Communication for adjustment (Serial data) 89 MICON RX RXD0 I/O Communication for adjustment (Serial data) 90 OSDR4 P3.12 O Red for OSD 91 CLK(Sirial) P3.13 O Communication for chassis CPU (Clock) 92 OSDG0 P3.15 O Green for OSD 93 OSDG1 P5.14 O Green for OSD 94 OSDG2 P5.15 O Green for OSD 95 OSDG3 TRIG_IN O Green for OSD 96 OSDG4 TRIG_OUT O Green for OSD 97 OSDG5 P6.2 O Green for OSD 98 SCL3A P6.3 I/O I2C bus clock (for main memory)

99 SDA3A P6.4 I/O I2C bus Data (for main memory) 100 TEXT / OTHER P6.5 O Teletext signal select [Analog RGB : H Digital RGB : L] 101 IRQ(IDTV) P6.6 O Not used 102 V_PULSE VSYNC I Vertical sync 103 H_PULSE HSYNC I Horizontal sync 104 (COR/RSTOUT) COR/RSTOUT O Not used 105 Ys BLANK/CORBLA O Ys for OSD / Teletext 106 VDD33 VDD33 I 3.3V 107 VSS33 VSS33 - GND 108 XTAL1 XTAL1 I 6MHz for system clock 109 XTAL2 XTAL2 O 6MHz for system clock

110 VSSA VSSA - GN D 111 VDDA VDDA I 2.5V 112 R R O R for OSD / Teletext 113 G G O G for OSD / Teletext 114 B B O B for OSD / Teletext 115 VSSA VSSA - GN D 116 VDDA VDDA I 2.5V 117 CVBS CVBS2 I Video for Teletext 118 VSSA VSSA - GN D

119 VDDA VDDA I 2.5V 120 GND CVBS1B I GND 121 CVBS CVBS1A I Video for Teletext 122 VSSA VSSA - GND 12 3 VDDA VDDA I 2.5V 124 F_KEY_1 P5.0 I Key scan data 1 [ON : H] 125 F_KEY_2 P5.1 I Key scan data 2 [ON : H] 126 POWER_KEY P5.2 I Main power ON / OFF control [ON : L] 127 NC P5.3 I Not used 12 8 (TMODE) TMODE I Test purpose

(No.YA098) 1-11

2.3.3 CHASSIS CPU [IC7001] PIN FUNCTION

Pin No. Terminal name Port name I/O Remark

1 NC P60 O Not used 2 P_MU P61 O Viveo mute [Mute : H] 3 FUNC_LED P62 O Not used 4 A_MU P63 O Audio out mute [Mute : H] 5 M_MU P50 O Monitor out mute [Mute : H] 6 PC_SW P51 O PC input switch [ON : H] 7 DIMMER_LED P52 O Power LED brightness control [Low brightness : L] 8 NC P53 O Not used

9 NC P54 O Not used 10 NC P55 O Not used 11 POW_LED P56 O Power LED control [ON : H] 12 NC P57 O Not used 13 SBT2 SBT2 I Communication for main CPU (Clock) 14 SBI2 SBI2 I/O Communication for main CPU (Serial data) 15 SBO2 SBO2 I/O Communication for main CPU (Serial data) 16 REQ P23 O Communication for main CPU (Request) 17 3.3V VDD I 3.3V 18 NC PB0 O Not used 19 GND VSS - GND 20 3.3V XI I 3.3V 21 NC XO O Not used 22 3.3V VDD I 3.3V 23 OSCI OSCI I 16MHz for system clock 24 OSCO OSCO O 16MHz for system clock 25 3.3V (MODE) I 3.3v 26 NC P24 O Not used 27 A92_RST P25 O 3D YC separator reset [Reset : L] 28 NC P26 O Not used 29 LIP_RST P27 O Lip sync reset [Reset : H] 30 NC KI0 O Not used 31 NC KI1 I Not used 32 NC KI2 O Not used 33 MDR_CON P33 I Not used 34 3.3V AVDD I 3.3V 35 NC P34 O Not used 36 DsyncSW2 P35 O Not used 37 NC P36 O Not used 38 NC P37 O Not used 39 HOTPLUG P40 I Not used 40 MECA_SW P41 I Power switch input [ON : L] 41 MAIN_POW P42 O Main power control [ON : L] 42 MSP_RESET P43 O Multi sound processor reset [Reset : H] 43 0V Vref- I GND 44 NC AN4 I Not used 45 AFT1 AN5 I Tuner AFT detection [Detection : H] 46 NC AN6 I Not used 47 NC AN7 I Not used 48 NC P80 O Not used 49 NC P81 O Not used 50 N C TM0IO I Not used 51 N C SBI3 O Not used 52 N C SBO3 I Not used 53 NC P85 O Not used 54 3.3V Vref+ I 3.3V 55 PDP_TX SBI4 O PDP communication for sub CPU 56 PDP_RX SBO4 I PDP communication for sub CPU 57 SDA0 P90 I/O I2C bus data (for chassis memory) 58 SCL0 P91 I/O I2C bus clock (for chassis memory) 59 SDA_DVI P92 I/O Not used 60 SCL_DVI P92 I/O Not used 61 GND AVSS - GND 62 NC AN0 I Not used 63 AGC AN1 I AGC voltage level detection [Detection : H] 64 YS1 AN2 I YS1 detection [Detection : H] 65 YS2 AN3 I YS2 detection [Detection : H]

1-12 (No.YA098)

Pin No. Terminal name Port name I/O Remark

66 3.3V VDD I 3.3V 67 NC P70 O Not used 68 NC P71 O Not used 69 NC P72 O Not used 70 NC P73 O Not used 71 NC SBI1 O Not used 72 NC SBO1 O Not used 73 SBD5 * I/O For flash writing 74 SBT5 * I For flash writing 75 3.3V NMI I 3.3V 76 NC IRQ0 I Not used 77 REMOCON IRQ1 I Remote control 78 V_SYNC IRQ2 I Vertical sync 79 WAKEUP_SHM IRQ3 I Sleep state release for chassis CPU [Relese : L] 80 POWERGOOD IRQ4 I Power error detection [Detection : H] 81 REC_LED PA5 O Stand-by power LED control [Stand-by :H] 82 RST RST I Chassis CPU reset [Reset : L] 83 3.3V VDD I 3.3V 84 SCL3A P00 I/O I

85 SDA3A P01 I/O I

86 SCL3B P02 I/O I

C bus clock (for 3D separator, colour management / OSD

composition / RGB A-D convert, U / V frontend, sound delay)

C bus data (for 3D separator, colour management / OSD

composition / RGB A-D convert, U / V frontend, sound delay)

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

87 SDA3B P03 I/O I

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

88 NC P04 O Not used 89 NC P05 O Not used 90 NC P06 O Not used 91 DVI_RST P07 O Not used 92 GND VSS - GND 93 SCL5055 P10 I/O I2C bus clock (for DIST) 94 NC P11 O Not used 95 SDA5055 P12 I/O I2C bus data (for DIST) 96 NC P13 O Not used 97 NC P14 O Not used 98 15K/OTH P15 O Y signal select for 3D YC separator [525i : H other : L] 99 DsyncSW1 P16 O Not used

100 JCC5057_BUSY P17 I Busy for Colour management / OSD composition [Busy : H]

(No.YA098) 1-13

2.3.4 SUB CPU [IC807] PIN FUNCTION [PD-42B50BJ, PD-42B50BU]

Pin No. Terminal name Port name I/O Remark

1 SYSTEM0 PB6/AN6 I PDP size select [1.75V : 42V VGA 3.25V : 35V VGA] 2 SYSTEM3 PB7/AN7 I PDP maker select [0V : SAMSUNG 3.25V : NEC] 3 AVCC AVCC I 5.0V 4 X2 X2 - Not used 5X1 X1 -GND 6 VCL VCL - GND 7 RES RES I Reset [Reset : L] 8 TEST TEST I GND

9 VSS VSS - G ND 10 OSC2 OSC2 O 16MHz for system clock 11 OSC1 OSC1 I 16MHz for system clock 12 VCC VCC I 5.0V 13 PW_LOB P50/WKP0 O Power control [ON : L] 14 PANEL_PW_ON P51/WKP1 O Panel power control [ON : L] 15 TALK_RST P34 O Not used 16 CODEC_RST P35 O Not used 17 I2C_STOP P36 O I2C bus stop control [Stop : L] 18 NC P37 O Not used 19 NC P52/WKP2 O Not used 20 NC P53/WKP3 O Not used 21 NC P54/WKP4 O Not used 22 NC P55/WKP5/ADTRG O Not used 23 SDA1 P10/TMOW I/O I2C bus data (for sub memory) 24 FAN P11/PWM O Not used 25 SCL1 P12 O I2C bus clock (for sub memory) 26 SDA0 P56/SDA I/O 27 SCL0 P57/SCL O 28 SDA2 P74/TMRIV I/O I2C bus data (for PDP communication) 29 SCL2 P75/TMCIV O I2C bus clock (for PDP communication) 30 N C P76/TMOV O Not used 31 SDA3 P24 I/O Not used 32 SCL3 P63/FTIOD0 O Not used 33 NC P62/FTIOC0 O Not used 34 NC P61/FTIOB0 O Not used 35 NMI NMI I Port for writing on board control [Writing : L] 36 A_MU P60/FTIOA0 O Audio mute [Mute : H] 37 (HD) P64/FTIOA1 I Not used 38 ON_TIMMER P65/FTIOB1 O Not used 39 REMO P66/FTIOC1 I Not used 40 POWERLED P67/FTIOD1 O Not used 41 P85 P85 I Emulator connection / Port for writing on board [Writing : H] 42 P86 P86 I Emulator connection 43 P87 P87 I Emulator connection 44 SCK3 P20/SCK3 O Port for writing on board 45 RXD P21/RXD I Port for writing on board 46 TXD P22/TXD O Port for writing on board 47 AC_DET P23 I AC power frequency detection [Detection : H] 48 NC P70/SCK3_2 O Not used 49 RXD2 P71/RXD_2 I Communication for main CPU (Serial data) 50 TXD2 P72/TXD_2 O Communication for main CPU (Serial data) 51 NC P14/IRQ0 O Not used 52 MECA_SW P15/IRQ1/TMIB1 I Not used 53 VD P16/IRQ2 I Vertical sync 54 REC_DET P17/IRQ3/TRGV I Not used 55 I2C_READY P33 I 56 FAN_LOCK P32 I Not used 57 SYSTEM2 P31 I Not used 58 SYSTEM 1 P30 I Not used 59 THEM_DET PB3/AN3 I Temp. sensor detection [Detection : H] 60 (AMP_PRO2) PB2/AN2 - GND 61 AMP_PRO1 PB1/AN1 I Temp. protector detection for Audio out [Detection : L] 62 EE_CDS PB0/AN0 I Not used 63 KEY_IN1 PB4/AN4 I Not used 64 KEY_IN2 PB5/AN5 I Not used

I2C bus data (for BBE / SURROUND / AUDIO CONTROL, TEMP. SENSOR) I2C bus clock (for BBE / SURROUND / AUDIO CONTROL, TEMP. SENSOR)

PDP I2C communication select (Prohibition : L Permission : H)

1-14 (No.YA098)

2.3.5 SUB CPU [IC807] PIN FUNCTION [PD-35B50BJ, PD-35B50BU]

Pin No. Terminal name Port name I/O Remark

1 SYSTEM0 PB6/AN6 I PDP size select [1.75V : 42V VGA 3.25V : 35V VGA] 2 SYSTEM3 PB7/AN7 I PDP maker select [0V : SAMSUNG 3.25V : NEC] 3 AVCC AVCC I 5.0V 4 X2 X2 - Not used 5 X1 X1 - GND 6 VCL VCL - GND 7 RES RES I Reset [Reset : L] 8 TEST TEST I GND 9 VSS VSS - GND

10 OSC2 OSC2 O 16MHz for system clock

11 OSC1 OSC1 I 16MHz for system clock 12 VCC VCC I 5.0V 13 PW_LOB P50/WKP0 O Power control [ON : L] 14 PANEL_PW_ON P51/WKP1 O Panel power control [ON : L] 15 TALK_RST P34 O Not used 16 CODEC_RST P35 O Not used 17 I2C_STOP P36 O I2C bus stop control [Stop : L] 18 NC P37 O Not used 19 PSCK P52/WKP2 O Not used 20 PLE P53/WKP3 O PDP communication for DVI / LVDS format conversion 21 CLE P54/WKP4 O Not used 22 PSSC P55/WKP5/ADTRG O Not used 23 SDA1 P10/TMOW I/O I2C bus data (for sub memory) 24 FAN P11/PWM O Not used 25 SCL1 P12 O I2C bus clock (for sub memory) 26 SDA0 P56/SDA I/O 27 SCL0 P57/SCL O 28 SDATA P74/TMRIV I/O I2C bus data (for PDP communication) 29 SCK P75/TMCIV O I2C bus clock (for PDP communication) 30 LE P76/TMOV O PDP communication control for DVI / LVDS format conversion 31 SDA3 P24 I/O Not used 32 SCL3 P63/FTIOD0 O Not used 33 NC P62/FTIOC0 O Not used 34 NC P61/FTIOB0 O Not used 35 NMI NMI I Port for writing on board control [Writing : L] 36 A_MU P60/FTIOA0 O Audio mute [Mute : H] 37 (HD) P64/FTIOA1 I Not used 38 ON_TIMMER P65/FTIOB1 O Not used 39 REMO P66/FTIOC1 I Not used 40 POWERLED P67/FTIOD1 O Not used 41 P85 P85 I Emulator connection / Port for writing on board [Writing : H] 42 P86 P86 I Emulator connection 43 P87 P87 I Emulator connection 44 SCK3 P20/SCK3 O Port for writing on board 45 RXD P21/RXD I Port for writing on board 46 TXD P22/TXD O Port for writing on board 47 ALARM P2 3 I AC power frequency detection [Detection : H] 48 NC P70/SCK3_2 O Not used 49 RXD2 P71/RXD_2 I Communication for main CPU (Serial data) 50 TXD2 P72/TXD_2 O Communication for main CPU (Serial data) 51 N C P14/IRQ0 O Not used 52 MECA_SW P15/IRQ1/TMIB1 I Not used 53 VD P16/IRQ2 I Vertical sync 54 REC_DET P17/IRQ3/TRGV I Not used 55 PSS P33 I PDP communication for DVI / LVDS format conversion 56 FAN_LOCK P32 I Not used 57 SYSTEM2 P31 I Not used 58 SYSTEM 1 P30 I Not used 59 THEM_DET PB3/AN3 I Temp. sensor detection [Detection : H] 60 (AMP_PRO2) PB2/AN2 - GND 61 AMP_PRO1 PB1/AN1 I Temp. protector detection for Audio out [Detection : L] 62 EE_CDS PB0/AN0 I Not used 63 KEY_IN1 PB4/AN4 I Not used 64 KEY_IN2 PB5/AN5 I Not used

I2C bus data (for BBE / SURROUND / AUDIO CONTROL, TEMP. SENSOR) I2C bus clock (for BBE / SURROUND / AUDIO CONTROL, TEMP. SENSOR)

(No.YA098) 1-15

DISASSEMBLY

3.1 DISASSEMBLY PROCEDURE [42V MODEL]

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 2 screws [A] and the 6 screws [B]. (3) Remove the TABLE TOP STAND. [PD-42B50BJ] (4) Remove the 2 screws [C]. [PD-42B50BU] (5) Remove the 15 screws [D], the 4 screws [E], the 8 screws

[F] and remove the REAR COVER.

SECTION 3

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

• Remove the REAR COVER.

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

SHIELD COVER.

(2) Remove the 7 screws [H], the 6 screws [I] and the 1 screw

[J], and remove the TERMINAL COVER.

(3) Remove the 6 screws [K], and remove the CENTER

COVER.

(x6)

(x2)

REAR COVER

(x2)

[PD-42B50BU]

(x8)

(x4)

(x11)

(x7)

CHASSIS SHIELD COVER

(x6)

CENTER COVER

TABLE TOP STAND [PD-42B50BJ]

(x2)

TERMINAL COVER

(x6)

1-16 (No.YA098)

Fig. 1

3.1.3 REMOVING THE AUDIO PWB (Fig. 2)

• Remove the REAR COVER.

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

COVER.

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

[CN600Y], [CN600SL], [CN60SR] from the AUDIO PWB.

(3) Remove the 4 screws [M], 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 COAXIAL CABLE. (2) Remove the 1 screw [N], the 6 screws [O], and the 1

connector [P], and remove the TERMINAL BOARD.

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

AV JACK PWB.

(4) 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 [Q], 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 [R], 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 [S] and the 1 screw [T], and remove

AC INLET PANEL.

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

PWB.

(3) Remove the 1 screw [U], the 1 screw [V] and the 2 screws

[W], and remove the LINE FILTER PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

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 COAXIAL CABLE. (2) Disconnect the connectors [CN00A], [CN00T] from the

RECEIVER PWB.

(3) 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 [X], 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 [Y], 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 [Z], and remove the DIGITAL

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

(No.YA098) 1-17

INTERFACE PWB

(x2)

RECEIVER PWB

ANALOG SIGNAL PWB

(x5)

DIGITAL SIGNAL PWB

MAIN BASE

(x4)

REGULATOR PWB

(x4)

(x2)

COAXIAL CABLE

AC INLET PANEL

LINE FILTER PWB

AV JACK PWB

TERMINAL BOARD

(x4)

(x6)

AUDIO CHASSIS COVER

DIGITAL TERMINAL COVER

CHASSIS BASE

AUDIO PWB

AUDIO PWB BASE

Fig. 2

1-18 (No.YA098)

3.1.12 REMOVING THE FRONT CONTROL PWB (Fig.3)

• Remove the REAR COVER.

• Remove the CENTER COVER.

(1) Remove the 4 screws [d] and the 2 screws [e]. (2) From the front side of the main body, remove the 2 screws

[f].

(3) Disconnect the connectors [CN00F], [CN00T] from the

FRONT CONTROL PWB.

(4) 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 [g], and withdraw the FRONT PWB

BASE.

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

PWB.

(3) Remove the 2 screws [h], 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 [i], and remove the TEMP. SENSOR

PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.1.16 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 [k], 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.

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 [m] and the 8 screws [n], 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 6 screws [j], 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.

(No.YA098) 1-19

INSULATOR

(x4)

BACK FRAME

(x6)

(x4)

MAIN POWER PWB

SUB POWER PWB

(x4)

POWER PWB BRACKET

(x2)

FRONT CONTROL PWB

(x4)

GAS insertion

hole

TEMP. SENSOR PWB

INSULATOR

PDP UNIT

1-20 (No.YA098)

Fig. 3

FRONT PWB BASE

(x2)

FRONT LED PWB

(x2)

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 [o], 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 [p], 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 [s], 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 [t], 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 [q], 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 [r], 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)

(x5)

Y-MAIN PWB

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 [u], 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 [v], and remove the G-BUFFER PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

(x7) (x8)

q o

X-MAIN PWB

Y-BUFFER-U PWB

Y-BUFFER-L PWB

(x5)

(x6)

E-BUFFER PWB G-BUFFER PWBF-BUFFER PWB

LOGIC-MAIN PWB

Fig. 4

(x3)

(x6)

(No.YA098) 1-21

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 [w], and remove the SPEAKER. (2) Follow the same steps when removing the other hand

SPEAKER.

CAUTION:

• Please do not disassembly the SPEAKER.

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.

(x5)

TOP FRAME

(1) Remove the 8 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 16 screws [y], 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 [z] and the 8 screws [AA], and remove

the TOP FRAME, BOTTOM FRAMEand SIDE FRAME.

(x4)

BOTTOM FRAME

(x2)

SIDE FRAME

(x3)

FILTER

BRACKET

(x2)

(x3)

SIDE FRAME

(x3)

SPEAKER

(x2)

FRONT FILTER

(x4)

FRONT PANEL

SPEAKER

(x5)

(x3)

1-22 (No.YA098)

Fig. 5

3.2 DISASSEMBLY PROCEDURE [35V MODEL]

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 2 screws [A] and the 6 screws [B]. (3) Remove the TABLE TOP STAND. [PD-35B50BJ] (4) Remove the 2 screws [c]. [PD-35B50BU]

(5) Remove the 14 screws [D], the 6 screws [E] and the 8

screws [F], and remove the REAR COVER.

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

• Remove the REAR COVER.

(1) Remove the 6 screws [G], and remove the CENTER

COVER.

(2) Remove the 7 screws [H], and remove the CHASSIS

SHIELD COVER.

(3) Remove the 8 screws [I], the 6 screws [J] and the 1 screw

[K], and remove the TERMINAL COVER.

(x6)

(x2)

[PD-35B50BU]

(x6)

(x14)

(x8)

REAR COVER

(x7)

CHASSIS SHIELD COVER

TABLE TOP STAND

(x6)

[PD-35B50BJ]

(x6)

TERMINAL COVER

Fig. 6

(x6)

CENTER COVER

(No.YA098) 1-23

3.2.3 REMOVING THE AUDIO PWB (Fig. 7)

• Remove the REAR COVER.

(1) Remove the 2 screws [L], and remove the AUDIO CHASSIS

COVER.

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

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

(3) Remove the 4 screws [M], 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 COAXIAL CABLE. (2) Remove the 1 screw [N], the 6 screws [O] and the 1

connector [P], and remove the TERMINAL BOARD.

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

AV JACK PWB.

(4) 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 [Q], 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 [R], 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 [S] and the 1 screw [T], and remove

AC INLET PANEL.

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

PWB.

1-24 (No.YA098)

(3) Remove the 1 screw [U] and the 2 screw [V], 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 COAXIAL CABLE. (2) Disconnect the connectors [CN00A], [CN00T] from the

RECEIVER PWB.

(3) 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 [W], 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 [X], 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 [Y], and remove the DIGITAL

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

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

(4) (5)

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

INTERFACE PWB

RECEIVER PWB

(x2)

(x4)

ANALOG SIGNAL PWB

(x5)

DIGITAL TERMINAL COVER

REGULATOR PWB

DIGITAL SIGNAL PWB

MAIN BASE

CHASSIS BASE

(x4)

(x2)

LINE FILTER PWB

AC INLET PANEL

AV JACK PWB

TERMINAL BOARD

COAXIAL CABLE

(x2)

AUDIO CHASSIS COVER

AUDIO PWB

(x4)

(x6)

Fig. 7

AUDIO PWB BASE

(No.YA098) 1-25

3.2.12 REMOVING THE FRONT CONTROL PWB (Fig.8)

• Remove the REAR COVER.

• Remove the CENTER COVER.

(1) Remove the 4 screws [c] and the 2 screws [d]. (2) From the front side of the main body, remove the 2 screws

[e].

(3) Disconnect the connectors [CN00F], [CN00T] from the

FRONT CONTROL PWB.

(4) 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 [f], and remove the FRONT PWB

BASE.

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

PWB.

(3) Remove the 2 screws [g], 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 [h], and remove the TEMP. SENSOR

PWB.

NOTE:

• It is advisable to take note of the connecting location

(connector number) of the removed connectors.

3.2.15 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 [i], 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 [j], and remove the SUB POWER

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 [k], 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 [m] and the 8 screws [n], 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 [o], 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.

1-26 (No.YA098)

(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

PDP UNIT

Fig. 8

(x2)

FRONT PWB BASE

FRONT LED PWB

(x2)

(No.YA098) 1-27

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 [p] and the 9 screws [q], 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 [r], 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 [s] and the 4 screws [t], 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 [u] and the 2 screws [v], 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 [w], 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 [x], 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 [w], 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 [y], 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 [z] and the 5 screws [AA], and remove

the BRIDGE PWB.

LOGIC CONTROL PWB BRIDGE PWB

COMMON DRIVE PWB

(x4)

(x5)

(x8)(x5) (x9)

PANEL POWER PWB

(x12)

SCANNING DRIVE PWB

(x2)

(x8)

(x4)

SIGNAL DRIVE-L PWB SIGNAL DRIVE-R PWB

HEAT SINK

(x7)

1-28 (No.YA098)

Fig. 9

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 4 screws [AB], and remove the SPEAKER. (2) Follow the same steps when removing the other hand

SPEAKER.

CAUTION:

• Please do not disassembly the SPEAKER.

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).

• Remove the PDP UNIT.

(x4)

(x2)

(1) Remove the 6 screws [AC]. (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 [AD], 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 [AE], and remove the TOP FRAME,

BOTTOM FRAME and SIDE FRAME.

(x2)

SIDE FRAME

TOP FRAME

BOTTOM FRAME

(x2)

SIDE FRAME

(x4)

FRONT FILTER

SPEAKER

FILTER BRACKET

(x4)

(x2)

(x4)

SPEAKER

Fig. 10

FRONT PANEL

(No.YA098) 1-29

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 and Table 2. 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 3.) 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 AND REMOTE CONTROL UNIT

Setting item Setting value

POWER OFF SUB POWER ON CHANNEL PR1 VOLUME 10 ZOOM PANORAMIC MULIT PICTURE 1 SCREEN

3D SOUND OFF

Table 1

Fig.1

1-30 (No.YA098)

3.3.3.2 SETTING OF MENU SCREEN

Setting item Setting value

PICTURE SETTING

PICTURE MODE BRIGHT CONTRAST +8 BRIGHT 0 SHARP +5 COLOUR 0 COLOUR TEMP. NORMAL

PICTURE FEATURES

DIGITAL VNR MIN Super DigiPure AUTO MOVIE THEATRE 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 3D SOUND OFF A.H.B. MID BBE OFF SPEAKER TV

Setting item Setting value

FEATURES

SLEEP TIMER OFF CHILD LOCK ID No. 0000 ALL CH : OFF APPEARANCE TYPE A BLUE BACK ON REFRESH OFF

SET UP

AUTO PROGRAM UNITED KINGDOM EDIT / MANUAL Only for PR / CH LANGUAGE ENGLISH DECODER (EXT-2) ALL CH : OFF PICTURE SHIFT FAST

EXT SETTING

S-IN Space ID LIST Space DUBBING EXT-1 → EXT-2

Table 2

3.3.3.3 SERVICE MENU SETTING ITEMS

Service menu Setting item

1. ADJUST

2. SELF CHECK

3. I2C STOP

S001 ~ S039

T001 ~ T010

P001 ~ P010

D001 ~ D187

Z001 ~ Z010

[Refer to “SECTION 5

TROUBLESHOOTING” (page 1-47)]

[Do not adjust]

Table 3

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.

(No.YA098) 1-31

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.

1-32 (No.YA098)

SECTION 4

SERVICE MENU SCREEN

ADJUST MODE 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.

Setting item Settings

PICTURE MODE STANDARD PICTURE adjustments All center (00) COLOUR TEMP. NORMAL DIGITAL VNR MIN Super DigiPure AUTO MOVIE THEATRE AUTO COLOUR MANAGEMENT ON PICTURE MANAGEMENT ON SOUND adjustments All center (00) 3D SOUND OFF A.H.B MID BBE OFF ZOOM FULL

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 MODE

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

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

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

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

CAUTION:

(3) Select the service item using the [FUNCTION ( (4) Set the value using the [FUNCTION (/)] key. (5) Press the [MUTING] key to memorize the set value.

/)] key.

SERVICE MENU SCREEN

SERVICE MENU

1. ADJUST

2. SELF_CHECK

3. I2C STOP

ADJUST MODE SCREEN

S001 PREPATE 0 PAL50 FULL STD M

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

Fig.1

(No.YA098) 1-33

4.4.3 HOW TO EXIT THE SERVICE MENU MODE

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

4.4.4 SERVICE CONTROL KEY LAYOUT ON THE REMOTE

CONTROL UNIT

MUTING

1~3

INFOMATION

FUNCTION /

Fig.2

4.4.5 SETTING OF THE SERVICE MENUS

4.4.5.1 [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 ) COLOUR TEMP.

The COLOUR TEMP. is displayed.

H : WARM M : NORMAL 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.

4.4.5.2 [2.SELF CHECK]

[Refer to “SECTION 5 TROUBLESHOOTING” (page 1-47)]

4.4.5.3 [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) COLOUR TEMP.

Fig.3

1-34 (No.YA098)

4.5 MAIN PARTS LOCATIONS

4.5.1 [PD-42B50BJ, PD-42B50BU]

PDP UNIT

CN0C4

CN5401

CN5402

CN5403

CN5404

CN5406

CN5405

1 : Vs 2 : Vset 3 : Ve 4 : NC 5 : Va 6 : NC

7 : Vscan 8 : NC 9 : GND 10 : POWER 11 : PANEL POWER 12 : Vs_ON

CN5002

CN5008

CN5006

CN5003

CN9005

SUB

POWER

PWB

CN9010

CN9001

TEMP. SENSOR PWB

CN800V

CN8003

R9628

CN8006

CN9001

R9424

R9646

R9640

Vset

Vscan

CN8008 CN8001

CN8009

CN8002

MAIN POWER PWB

R9219

TOP

CN4001 CN4003

CN4004

CN5501

CN5502

CN5503

CN5505

CN5506

CN5504

ANALOG SIGNAL PWB

CN5004

CN5007

CN5001

CN5005

CN806

EC1 EC2 EC3 EC4 EC5 EC6

RECEIVER PWB

DIGITAL SIGNAL PWB

CN0LV2

CN003

CN002

CN001

CN0FC

CN00F CN00D

CN002

CN001

CN0J01 CN0J02

J01

LA03 CN201

CN401

CN00G

CN00TCN00A

J2004

CN401

EF1 FE1

REGULATOR PWB

AV JACK PWB

J02

J2005

J2003

CN803

CN402

FC1 FC2

INTERFACE PWB

CN008

J2002

CN003

J2006

J2001

FG1

LINE FILTER PWB

F9901

INLET

CN101

CN4002

CN403

GF1

CN403

GC1 GC2 GC3 GC4 GC5 GC6

AUDIO PWB

SPEAKER(L)

MAIN BASE

CN4005

SL SR

SPEAKER(R)

FRONT LED PWB

J1101 J1401 J1001

(No.YA098) 1-35

FRONT CONTROL PWB

4.5.2 [PD-35B50BJ, PD-35B50BU]

CN0C4

1 : Vs 2 : NC 3 : Va(Vd) 4 : NC 5 : 5V 6 : GND

CN9005

SUB POWER

PWB

TEMP. SENSOR PWB

R1551

CN8003

R1451

Va(Vd)

CN8005

TOP

CN8009

MAIN POWER UNIT

CN9010

CN9001

CN1

CN4

CN2

CN3

CN701 CN401

CN14

RECEIVER PWB

CN101

CN407

CN15 CN13

CN601

CN9001

INTERFACE PWB

CN8001

CN302

CN301

CN100

CN200

CN315

CN16

CN12

CN5 CN4 CN3 CN2 CN1CN10 CN9 CN8 CN7 CN6

CN11

POWER PWB BASE

PDP UNIT

CN101

CN305

CN307

CN102

TAP1

CN221

CN222

TAP2

CN223

TAP3

CN224

CN226

ANALOG SIGNAL PWB

1-36 (No.YA098)

DIGITAL SIGNAL PWB

CN0LV1

CN003

CN002

CN001

CN0FC

FRONT LED PWB

CN0J01 CN0J02

CN00F

CN00G

CN00D

CN002

CN001

CN00TCN00A

AV JACK PWB

J2004

J02

J2003

J2005

J01

FRONT CONTROL PWB

J1101 J1401 J1001

CN008

CN003

REGULATOR PWB

J2006

J2002

J2001

LINE FILTER PWB

F9901

INLET

MAIN BASE

AUDIO PWB

SL SR

SPEAKER(L)

SPEAKER(R)

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 1 1 1 S003 NTSC CNT 0~255 44 44 44 S004 NT CR OF 0~15 4 4 4 S005 NT CB OF 0~15 4 4 4 S006 525i BL 0~15 1 1 1 S007 525i CNT 0~255 44 44 44 S008 5i CB OF 0~15 0 0 0 S009 5i CR OF 0~15 0 0 0 S010 5i CR GN 0~15 4 4 4 S011 5i CB GN 0~15 4 4 4 S012 HD BL 0~63 0 0 0 S013 HD CB OF 0~63 0 0 0 S014 HD CR OF 0~63 0 0 0 S015 RT CONT 0~15 7 7 7 S016 RT CB OF 0~15 2 2 2 S017 RT CR OF 0~15 5 5 5 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 0 0 0 S031 G DRIVE 0~255 0 0 0 S032 B DRIVE 0~255 0 0 0 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 (NO DISPLAY) 0~255 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 0 0 0 T005 (NO DISPLAY) 0~255 0 0 0 T006 ATT V ON 0~1 0 0 0 T007 ATT U ON 0~1 0 0 0 T008 ATT C ON 0~1 0 0 0 T009 (NO DISPLAY) 0~255 0 0 0 T010 (NO DISPLAY) 0~255 0 0 0

Variable range

PAL SECAM NTSC

Setting value

(No.YA098) 1-37

4.5.1.3 PANEL CONTROL SYSTEM

Item No. Item

P001 TM HOR H 0~FF 0 0 0 P002 TM HOR L 0~FF 0 0 0 P003 TM MIN 0~FF 0 0 0 P004 TEMP 0~255 0 0 0 P005 (NO DISPLAY) 0~255 0 0 0 P006 (NO DISPLAY) 0~255 0 0 0 P007 (NO DISPLAY) 0~255 0 0 0 P008 (NO DISPLAY) 0~255 0 0 0 P009 (NO DISPLAY) 0~255 0 0 0 P010 (NO DISPLAY) 0~1 0 0 0

4.5.1.4 DRIVE SYSTEM

Item No. Item

D001 SLV GN 0~3F 00 0 0 00 D002 SLVH GN 0~3F 00 00 0 0 D003 SLH GN 0~3F 00 00 00 D004 SLV Pf 0~03 00 00 00 D005 SLH Pf H 0~01 00 00 00 D006 SLH Pf L 0~03 00 00 00 D007 SL EGCON 0~3F 00 00 00 D008 SL EGONF 0~01 00 00 00 D009 SL CRGON 0~3F 00 00 00 D010 SL CRGON 0~01 00 00 00 D011 SL ON OF 0~01 00 00 00 D012 SV GN 0~3F 00 00 00 D013 SVH GN 0~3F 00 00 00 D014 SH GN 0~3F 00 00 00 D015 SV Pf 0~03 00 00 00 D016 SV Pf H 0~01 00 00 00 D017 SV Pf L 0~03 00 00 00 D018 SYL CON 0~3F 00 00 00 D019 SYL CONF 0~01 00 00 00 D020 SYH CON 0~3F 00 00 00 D021 SYH CONF 0~01 00 00 00 D022 SC CON 0~3F 00 00 00 D023 SC CNONF 0~01 00 00 00 D024 SPM BLC 0~3F 00 00 00 D025 SPM BLCO 0~01 00 00 00 D026 SLIM 0~3F 00 00 00 D027 SLIMONF 0~01 00 00 00 D028 SCRG 0~3F 00 00 00 D029 SRGONF 0~01 00 00 00 D030 S ONF 0~01 00 00 00 D031 pb GN 0~3F 00 00 00 D032 pb Pf H 0~01 00 00 00 D033 pb Pf L 0~03 00 00 00 D034 pb CRG 0~3F 00 00 00 D035 pb CRGON 0~01 00 00 00 D036 pb ONF 0~01 00 00 00 D037 pr GN 0~3F 00 00 00 D038 pr Pf H 0~01 00 00 00 D039 pr Pf L 0~03 00 00 00 D040 pr CRG 0~3F 0 0 00 00 D041 pr CRGON 0~01 00 00 00

Variable range

PAL SECAM NTSC

Setting value

1-38 (No.YA098)

Item No. Item

D042 pr ONF 0~01 00 00 00 D043 ENH ONF 0~01 00 00 00 D044 (NO DISPLAY) 0~FF 00 00 00 D045 (NO DISPLAY) 0~FF 00 00 00 D046 (NO DISPLAY) 0~FF 00 00 00 D047 (NO DISPLAY) 0~FF 00 00 00 D048 (NO DISPLAY) 0~FF 00 00 00 D049 (NO DISPLAY) 0~FF 00 00 00 D050 (NO DISPLAY) 0~FF 00 00 00 D051 (NO DISPLAY) 0~FF 00 00 00 D052 (NO DISPLAY) 0~FF 00 00 00 D053 (NO DISPLAY) 0~FF 00 00 00 D054 (NO DISPLAY) 0~FF 00 00 00 D055 (NO DISPLAY) 0~FF 00 00 00 D056 (NO DISPLAY) 0~FF 00 00 00 D057 (NO DISPLAY) 0~FF 00 00 00 D058 (NO DISPLAY) 0~FF 00 00 00 D059 (NO DISPLAY) 0~FF 00 00 00 D060 (NO DISPLAY) 0~FF 00 00 00 D061 (NO DISPLAY) 0~FF 00 00 00 D062 (NO DISPLAY) 0~FF 00 00 00 D063 (NO DISPLAY) 0~FF 00 00 00 D064 (NO DISPLAY) 0~FF 00 00 00 D065 (NO DISPLAY) 0~FF 00 00 00 D066 (NO DISPLAY) 0~FF 00 00 00 D067 (NO DISPLAY) 0~FF 00 00 00 D068 (NO DISPLAY) 0~FF 00 00 00 D069 (NO DISPLAY) 0~FF 00 00 00 D070 (NO DISPLAY) 0~FF 00 00 00 D071 (NO DISPLAY) 0~FF 00 00 00 D072 (NO DISPLAY) 0~FF 00 00 00 D073 (NO DISPLAY) 0~FF 00 00 00 D074 (NO DISPLAY) 0~FF 00 00 00 D075 (NO DISPLAY) 0~FF 00 00 00 D076 (NO DISPLAY) 0~FF 00 00 00 D077 (NO DISPLAY) 0~FF 00 00 00 D078 (NO DISPLAY) 0~FF 00 00 00 D079 (NO DISPLAY) 0~FF 00 00 00 D080 (NO DISPLAY) 0~FF 00 00 00 D081 (NO DISPLAY) 0~FF 00 00 00 D082 (NO DISPLAY) 0~FF 00 00 00 D083 (NO DISPLAY) 0~FF 00 00 00 D084 (NO DISPLAY) 0~FF 00 00 00 D085 (NO DISPLAY) 0~FF 00 00 00 D086 (NO DISPLAY) 0~FF 00 00 00 D087 (NO DISPLAY) 0~FF 00 00 00 D088 (NO DISPLAY) 0~FF 00 00 00 D089 (NO DISPLAY) 0~FF 00 00 00 D090 (NO DISPLAY) 0~FF 00 00 00 D091 (NO DISPLAY) 0~FF 00 00 00 D092 (NO DISPLAY) 0~FF 00 00 00 D093 (NO DISPLAY) 0~FF 00 00 00 D094 (NO DISPLAY) 0~FF 00 00 00 D095 (NO DISPLAY) 0~FF 00 00 00 D096 (NO DISPLAY) 0~FF 00 00 00

Variable range

PAL SECAM NTSC

Setting value

(No.YA098) 1-39

Item No. Item

D097 (NO DISPLAY) 0~FF 00 00 00 D098 (NO DISPLAY) 0~FF 00 00 00 D099 (NO DISPLAY) 0~FF 00 00 00 D100 (NO DISPLAY) 0~FF 00 00 00 D101 (NO DISPLAY) 0~FF 00 00 00 D102 (NO DISPLAY) 0~FF 00 00 00 D103 (NO DISPLAY) 0~FF 00 00 00 D104 (NO DISPLAY) 0~FF 00 00 00 D105 (NO DISPLAY) 0~FF 00 00 00 D106 (NO DISPLAY) 0~FF 00 00 00 D107 (NO DISPLAY) 0~FF 00 00 00 D108 (NO DISPLAY) 0~FF 00 00 00 D109 (NO DISPLAY) 0~FF 00 00 00 D110 (NO DISPLAY) 0~FF 0 0 00 00 D111 (NO DISPLAY) 0~FF 0 0 00 00 D112 (NO DISPLAY) 0~FF 0 0 00 00 D113 (NO DISPLAY) 0~FF 0 0 00 00 D114 (NO DISPLAY) 0~FF 0 0 00 00 D115 (NO DISPLAY) 0~FF 0 0 00 00 D116 (NO DISPLAY) 0~FF 0 0 00 00 D117 (NO DISPLAY) 0~FF 0 0 00 00 D118 (NO DISPLAY) 0~FF 0 0 00 00 D119 (NO DISPLAY) 0~FF 0 0 00 00 D120 (NO DISPLAY) 0~FF 00 00 00 D121 (NO DISPLAY) 0~FF 00 00 00 D122 (NO DISPLAY) 0~FF 00 00 00 D123 (NO DISPLAY) 0~FF 00 00 00 D124 (NO DISPLAY) 0~FF 00 00 00 D125 (NO DISPLAY) 0~FF 00 00 00 D126 (NO DISPLAY) 0~FF 00 00 00 D127 (NO DISPLAY) 0~FF 00 00 00 D128 (NO DISPLAY) 0~FF 00 00 00 D129 (NO DISPLAY) 0~FF 00 00 00 D130 (NO DISPLAY) 0~FF 00 00 00 D131 (NO DISPLAY) 0~FF 00 00 00 D132 (NO DISPLAY) 0~FF 00 00 00 D133 (NO DISPLAY) 0~FF 00 00 00 D134 (NO DISPLAY) 0~FF 00 00 00 D135 (NO DISPLAY) 0~FF 00 00 00 D136 (NO DISPLAY) 0~FF 00 00 00 D137 (NO DISPLAY) 0~FF 00 00 00 D138 (NO DISPLAY) 0~FF 00 00 00 D139 (NO DISPLAY) 0~FF 00 00 00 D140 (NO DISPLAY) 0~FF 00 00 00 D141 (NO DISPLAY) 0~FF 00 00 00 D142 (NO DISPLAY) 0~FF 00 00 00 D143 (NO DISPLAY) 0~FF 00 00 00 D144 (NO DISPLAY) 0~FF 00 00 00 D145 (NO DISPLAY) 0~FF 00 00 00 D146 (NO DISPLAY) 0~FF 00 00 00 D147 (NO DISPLAY) 0~FF 00 00 00 D148 (NO DISPLAY) 0~FF 00 00 00 D149 (NO DISPLAY) 0~FF 00 00 00 D150 (NO DISPLAY) 0~FF 00 00 00

Variable range

PAL SECAM NTSC

Setting value

1-40 (No.YA098)

Item No. Item

D151 (NO DISPLAY) 0~FF 00 00 00 D152 (NO DISPLAY) 0~FF 00 00 00 D153 (NO DISPLAY) 0~FF 00 00 00 D154 (NO DISPLAY) 0~FF 00 00 00 D155 (NO DISPLAY) 0~FF 00 00 00 D156 (NO DISPLAY) 0~FF 00 00 00 D157 (NO DISPLAY) 0~FF 00 00 00 D158 (NO DISPLAY) 0~FF 00 00 00 D159 (NO DISPLAY) 0~FF 00 00 00 D160 (NO DISPLAY) 0~FF 00 00 00 D161 (NO DISPLAY) 0~FF 00 00 00 D162 (NO DISPLAY) 0~FF 00 00 00 D163 (NO DISPLAY) 0~FF 00 00 00 D164 (NO DISPLAY) 0~FF 00 00 00 D165 (NO DISPLAY) 0~FF 00 00 00 D166 (NO DISPLAY) 0~FF 00 00 00 D167 (NO DISPLAY) 0~FF 00 00 00 D168 (NO DISPLAY) 0~FF 00 00 00 D169 (NO DISPLAY) 0~FF 00 00 00 D170 (NO DISPLAY) 0~FF 00 00 00 D171 (NO DISPLAY) 0~FF 00 00 00 D172 (NO DISPLAY) 0~FF 00 00 00 D173 (NO DISPLAY) 0~FF 00 00 00 D174 (NO DISPLAY) 0~FF 00 00 00 D175 (NO DISPLAY) 0~FF 00 00 00 D176 (NO DISPLAY) 0~FF 00 00 00 D177 (NO DISPLAY) 0~FF 00 00 00 D178 (NO DISPLAY) 0~FF 00 00 00 D179 (NO DISPLAY) 0~FF 00 00 00 D180 (NO DISPLAY) 0~FF 00 00 00 D181 (NO DISPLAY) 0~FF 00 00 00 D182 (NO DISPLAY) 0~FF 00 00 00 D183 (NO DISPLAY) 0~FF 00 00 00 D184 (NO DISPLAY) 0~FF 00 00 00 D185 (NO DISPLAY) 0~FF 00 00 00 D186 (NO DISPLAY) 0~FF 00 00 00 D187 (NO DISPLAY) 0~FF 00 00 00

Variable range

PAL SECAM NTSC

Setting value

4.5.1.5 MAIN CPU SETTING

Item No. Item

Z001 (NO DISPLAY) 0~0F 00 00 00 Z002 (NO DISPLAY) 0~0F 00 00 00 Z003 (NO DISPLAY) 0~0F 00 00 00 Z004 (NO DISPLAY) 0~FF 0 0 00 00 Z005 (NO DISPLAY) 0~FF 0 0 00 00 Z006 (NO DISPLAY) 0~FF 0 0 00 00 Z007 (NO DISPLAY) 0~FF 0 0 00 00 Z008 (NO DISPLAY) 0~FF 0 0 00 00 Z009 (NO DISPLAY) 0~FF 0 0 00 00 Z010 (NO DISPLAY) 0~FF 0 0 00 00

Variable range

PAL SECAM NTSC

Setting value

(No.YA098) 1-41

4.6 ADJUSTMENT PROCEDURE

Item

Measuring

instrument

Test point Adjustment part Description

PDP POWER VOLTAGE [42V]

MAIN POWER PWB voltage adjustment point

CN0C4

1 : Vs 2 : Vset 3 : Ve 4 : NC 5 : Va 6 : NC 7 : Vscan 8 : NC 9 : GND 10 : POWER 11 : PANEL POWER 12 : Vs_ON

PANEL POWER

MAIN POWER PWB

DC voltmeter

Signal generator

Resistor (1kΩ)

DC power supply

Vscan

CN0C4

Vset

Vscan

GND

POWER

Vs_ON

Vscan

Connector CN0C4 [MAIN POWER PWB] Vs Vset Ve Va Vscan

Vset

Fig. 1

Va Ve

Vset

SW1

Fig. 2

[MAIN POWER PWB] Vs VR:170V ADJ (R9424) Vset VR:160V ADJ (R9640) Ve VR:155V ADJ (R9646) Va VR:70V ADJ (R9219) Vscan VR:-60V ADJ (R9628)

Voltage adjustment VR

3.3V ~ 5.0V (DC power supply)

1kΩ (Resistor)

Voltage label

NTSC

XX XX XX XX XX

NTSC/PAL

Ve VsetVsc Vs

CAUTION:

• During adjustment operation of PDP POWER VOLTAGE,

don't touch the heat sink of the MAIN POWER PWB. If you touch it, electric shock may be caused.

< When MAIN POWER PWB is not replaced >

(1) Connect the DC voltmeter, load resistor (1kΩ), DC

power supply and switch SW1 to the CN0C4 connector and turn on the main power and switch SW1. (See Fig.2)

(2) Adjust Vs (170V ADJ) VR, Vset (160V ADJ) VR, Ve (155V

ADJ) VR, Va (70V ADJ) VR and Vscan (-60V ADJ) VR so that the Vs, Vset, Ve, Va and Vscan voltage coincides with the values in the voltage label.

(3) Input a PAL all-black signal and check that it coincides

with the values in the voltage label.

(4) Readjust if the adjusted value is different from those

in the voltage label.

NOTE:

• Designed value for the panel is printed on a label on the

upper-right at the back of the PDP. (See Fig.3)

< When MAIN POWER PWB is replaced >

CAUTION:

• Before making adjustments, be sure not to turn on the

power when the CN8002, CN8003, CN8005, CN8006 and CN8008 connectors are connected, as this may cause the PDP to break down.

(1) Disconnect the CN8002, CN8003, CN8005, CN8006

and CN8008 connectors on the MAIN POWER PWB.

(2) Connect the DC voltmeter, load resistor (1kΩ), DC

power supply and switch SW1 to the CN0C4 connector and turn on the main power and switch SW1. (See Fig.2)

(3) Adjust Vs (170V ADJ) VR, Vset (160V ADJ) VR, Ve (155V

ADJ) VR, Va (70V ADJ) VR and Vscan (-60V ADJ) VR so that the Vs, Vset, Ve, Va and Vscan voltage coincides with the values in the voltage label.

(4) Turn off the main power and switch SW1, and connect

the CN8002, CN8003, CN8005, CN8006 and CN8008 connectors and turn on the power again.

(5) Input a PAL all-black signal and check that it coincides

with the values in the voltage label.

(6) If the adjusted value is different from those in the

voltage label, fine-tune without unplugging the connectors.

CAUTION:

• Designated power supply voltage of the panel (Vs, Vset,

Ve, Va, Vscan) varies according to the PDP unit.

• Pay careful attention during adjustment, as any error in

procedure may cause the PDP to break down.

1-42 (No.YA098)

Fig. 3

Item

Measuring

instrument

Test point Adjustment part Description

PDP POWER

DC voltmeter

VOLTAGE [35V]

Signal generator

MAIN POWER UNIT voltage adjustment point

CN0C4

1. Vs

2. NC

3. Va(Vd)

4. NC

5. 5V

6. GND

Vs value Va(Vd) value

( sxxxx / dxxx ) xxx / xxx / xxx xxx / xxx / xxx / xxx xx / xx / xx / xx / xx xxxxxxx

CN0C4

GND

Voltage label

Connector CN0C4 [MAIN POWER UNIT] Vs Va(Vd)

Va(Vd)

Fig. 4

Fig. 5

[MAIN POWER UNIT] Vs VR:190V ADJ (R1551) Va VR:60V ADJ (R1451)

Voltage adjustment VR

MAIN POWER UNIT

CAUTION:

• During adjustment operation of PDP POWER VOLTAGE,

don't touch the heat sink of the MAIN POWER UNIT. If you touch it, electric shock may be caused.

< When MAIN POWER UNIT is not replaced >

(1) Connect the DC voltmeter to the CN0C4 connector

and turn on the power. (See Fig.5)

(2) Adjust Vs (190V ADJ) VR and Va (60V ADJ) VR so that

the Vs and Va voltage coincides with the values in the voltage label.

(3) Input a PAL all-black signal and check that it coincides

with the values in the voltage label.

(4) Readjust if the adjusted value is different from those

in the voltage label.

NOTE:

• Designed value for the panel is printed on a label on the

upper-left at the back of the PDP. (See Fig.6)

< When MAIN POWER UNIT is replaced >

CAUTION:

• Before making adjustments, be sure not to turn on the

power when the CN8003 and CN8005 connectors are connected, as this may cause the PDP to break down.

(1) Disconnect the CN8003 and CN8005 connectors on

the MAIN POWER UNIT.

(2) Connect DC voltmeter to the CN0C4 connector and

turn on the power. (See Fig.5)

(3) Adjust Vs (190V ADJ) VR and Va (70V ADJ) VR so that

the Vs and Va voltage coincides with the values in the voltage label.

(4) Turn off the power, and connect the CN8003 and

CN8005 connectors and turn on the power again.

(5) Input a PAL all-black signal and check that it coincides

with the values in the voltage label.

(6) If the adjusted value is different from those in the

voltage label, fine-tune without unplugging the connectors.

CAUTION:

• Designated power supply voltage of the panel (Vs, Va)

varies according to the PDP unit.

• Pay careful attention during adjustment, as any error in

procedure may cause the PDP to break down.

Fig. 6

(No.YA098) 1-43

Item

Measuring

instrument

Test point Adjustment part Description

625i A-D OFFSET

Remote control unit

Signal generator

[1. ADJUST] S001:PREPARE (adjustment setting mode change)

S008:5i CB OF (625i blue offset) S009:5i CR OF (625i red offset)

S030:R DRIVE (Red drive) S031:G DRIVE (Green drive) S032:B DRIVE (Blue drive)

(1) Receive a 625i component ramp pattern signal.

(2) Set PICTURE MODE to “STANDARD”.

(3) Select “1.ADFJUST” from the SERVICE MENU.

(4) Set < S030 > (Red drive), < S031 > (Green drive) and

< S032 > (Blue drive) to set “255”.

(5) Set < S001 >(adjustment setting mode change) to set

“008” and it change to the 625i A-D offset adjustment setting mode.

(6) Set < S008 > (625i blue offset) and < S009 > (625i red

offset) to lose the gap (red line, green line and blue line) which appears at both ends of a white part at the center of the screen. (See Fig.7)

(7) Set < S001 > to set “000” and it change to the normal

mode.

(8) Press the [MUTING] key to memorize the set value.

1125i BRIGHTNESS

Lose the gap (red line, green line and blue line) which appears at both ends.

Fig. 7

Remote control unit

[1. ADJUST] S001:PREPARE (adjustment setting

Signal generator

mode change)

S012:HD BL (1125i brightness)

S030:R DRIVE (Red drive) S031:G DRIVE (Green drive) S032:B DRIVE (Blue drive)

Set the 0% black part to be brightest.

(1) Receive a 1125i (50 Hz) black and white pattern signal

(including 0% black signal).

(2) Set PICTURE MODE to “STANDARD”.

(3) Select “1.ADFJUST” from the SERVICE MENU.

(4) Set < S030 > (Red drive), < S031 > (Green drive) and

< S032 > (Blue drive) to set “255”.

(5) Set < S001 > (adjustment setting mode change) to

set the values “012” and it change to the 1125i black level adjustment setting mode.

(6) Set < S012 > (1125i brightness) to set the 0% black

part in the upper half of the screen to be brightest. (See Fig.8)

(7) Set < S001 > to set “000” and it change to the normal

mode.

(8) Press the [MUTING] key to memorize the set value.

1-44 (No.YA098)

Fig.8

Item

1125i A-D OFFSET

Measuring

instrument

Test point Adjustment part Description

Remote control unit

Signal generator

Minimize the red and blue noises in the upper half of the screen.

[1. ADJUST] S001:PREPARE (adjustment setting mode change)

S013:HD CB OF (1125i blue offset) S014:HD CR OF (1125i res offset)

S030:R DRIVE (Red drive) S031:G DRIVE (Green drive) S032:B DRIVE (Blue drive)

(1) Receive a 1125i (50 Hz) 30% all-white pattern signal.

(2) Set PICTURE MODE to “STANDARD”.

(3) Select “1.ADFJUST” from the SERVICE MENU.

(4) Set < S030 > (Red drive), < S031 > (Green drive) and

< S032 > (Blue drive) to set “255”.

(5) Set < S001 > (adjustment setting mode change) to

set “013” and it change to the 1125i A-D offset adjustment setting mode.

(6) Set < S013 > (1125i blue offset) to minimize the blue

noise in the upper half of the screen. (See Fig.9)

(7) Set < S014 > (1125i red offset) to minimize the red

noise in the upper half of the screen. (See Fig.9)

(8) Readjust < S013 > and < S014 > to set the upper half

of the screen to be the blackest. (See Fig.9)

(9) Set < S001 > to set “000” and it change to the normal

mode.

(10)

Press the [MUTING] key to memorize the set value.

RGB CLAMP LEVEL

Fig. 9

Remote control unit

Signal generator

Blackest in the upper half of the screen

[1. ADJUST] S001:PREPARE (adjustment setting mode change)

S020:PC CL LB (VGA blue clamp level) S022:PC CL LR (VGA red clamp level)

S030:R DRIVE (Red drive) S031:G DRIVE (Green drive) S032:B DRIVE (Blue drive)

(1) Receive a PC (VGA) 0% all-black pattern signal.

(2) Set PICTURE MODE to “STANDARD”.

(3) Select “1.ADFJUST” from the SERVICE MENU.

(4) Set < S030 > (Red drive), < S031 > (Green drive) and

< S032 > (Blue drive) to set “255”.

(5) Set < S001 > (adjustment setting mode change) to

set “020” and it change to the PC (VGA) RGB clamp level adjustment setting mode.

(6) Set < S020 > (VGA blue clamp level) to set the upper

half of the screen to be the reddest. (See Fig.10)

(7) Set < S022 > (VGA red clamp level) to set the upper

half of the screen to be the bluest. (See Fig.10)

(8) Readjust < S020 > and < S022 > to set the upper half

of the screen to be the blackest. (See Fig.10)

(9) Set < S001 > to set “000” and it change to the normal

mode.

(10)

Press the [MUTING] key to memorize the set value.

Fig. 10

(No.YA098) 1-45

Item

Measuring

instrument

Test point Adjustment part Description

SUB-SCREEN A-D OFFSET

Remote control unit

Signal generator

[1. ADJUST] S001:PREPARE (adjustment setting mode change)

S016:RT CB OF (Sub screen blue offset) S017:RT CR OF (Sub screen red offset)

S030:R DRIVE (Red drice) S031:G DRIVE (Green drive) S032:B DRIEV (Blue drive)

Set the 0% block part to be brightest.

(1) Receive a PAL black and white pattern signal

(including 0% black signal).

(2) Set PICTURE MODE to “STANDARD”.

(3) Set MULTI-PICTURE to “TWIN-PICTURE”. (4) Select “1.ADFJUST” from the SERVICE MENU.

(5) Set < S030 > (Red drive), < S031 > (Green drive) and

< S032 > (Blue drive) to set “255”.

(6) Set < S001 > (adjustment setting mode change) to

set “017” and it change to the sub-screen A-D offset adjustment setting mode.

(7) Set < S016 > (Sub-screen blue offset) to minimize the

blue noise in the upper half of the screen. (See Fig.11)

NOTE:

• If you select an adjustment item < S016 >, then the

screen automatically turn to twin pictures mode.

(8) Set < S017 > (Sub-screen red offset) to minimize the

red noise in the upper half of the screen. (See Fig.11)

(9) Readjust < S016 > and < S017 > to set the upper half

of the screen to be the blackest. (See Fig.11)

(10 )

Adjust < S001 > to set “000” and it change to the normal mode.

(11)

Press the [MUTING] key to memorize the set value.

WHITE BALANCE (HIGH LIGHT)

Remote control unit

Signal generator

Fig. 11

[1. ADJUST] S030:R DRIVE (Red drive) S031:G DRIVE (Green drive) S032:B DRIVE (Blue drive)

(1) Receive a PAL 75% all-white pattern signal.

(2) Set PICTURE MODE to “STANDARD”.

(3) Set COLOUR TEMPERATURE to “NORMAL”.

(4) Select “1.ADFJUST” from the SERVICE MENU.

(5) Keep one of < S030 > (Red drive), < S031 > (Green

drive) or < S032 > (Blue drive) unchanged, then lower the other two so that the all-white screen is equally white throughout.

NOTE:

• Set one or more of < S030 >, < S031 > and < S032 > to

set values “128”.

(6) Check that white balance is properly tracked from low

light to high light. If the white balance tracking is deviated, adjust to correct it.

(7) Press the [MUTING] key to memorize the set value.

1-46 (No.YA098)

SECTION 5

SERVICE MENU SCREEN

< SELF-CHECK MODE (Page 1) >

< SELF-CHECK MODE (Page 2) >

TROUBLESHOOTING

5. 1 SELF-CHECK FEATURE

5.1.1 OUTLINE

This model has a “Self-check function”, which checks the operation state of the circuits and informs us of a failure by flashing POWER LED when a failure occurs. Diagnosis is performed when power is turned on, and information input to the main microcomputer is monitored at all time. Failure detection is based on input state of I various control lines connected to the main microcomputer.

5.1.2 HOW TO ENTER THE SELF-CHECK MODE

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

REMOTE CONTROL UNIT simultaneously, then the SERVICE MENU screen will be displayed. (See Fig.1)

(2) In the SERVICE MENU, press the [2] key. Then, the SELF-

CHECK MODE screen will be displayed. (See Fig.2)

(3) Press the [ZOOM (red)] key, then the second page of the

SELF-CHECK MODE screen will be displayed.

NOTE:

• When the [ZOOM (red)] key pressed, the first page

and the second page change screen.

C bus and the

SERVICE MENU SCREEN

SERVICE MENU

1. ADJUST

2. SELF CHECK

3. I2C STOP

Fig. 1

< SELF-CHECK MODE (Page 1) >

5.1.3 HOW TO EXIT THE SELF-CHECK MODE

(1) When you leave the failure history

Press the [MENU] key to exit the SELF-CHECK MODE.

(2) When you not leave the failure history

In the SELF-CHECK MODE, press the [POWER] key. Then the power is turned off.

5.1.4 FAILURE HISTORY

Failure history can be counted up to 9 times for each item.When the number exceeds 9, display will remain as 9. Failure history will be stored in the memory unless it has been deleted.

NOTE:

Only SYNC (with/without sync signals) will be neither counted nor stored.

5.1.5 POINTS TO NOTE WHEN USING THE SELF-CHECK FEATURE

In addition to circuit failures (abnormal operation), the following cases may also be iagnosed as “Abnormal” and displayed and counted as “NG”.

(1) Temporary defective transmissions across circuits due

to pulse interruptions.

(2) Misalignment in the on/off timing of power for I

when turning on/off the main power.

Diagnosis may be impeded if a large number of items are displayed as “NG”. As such, start self-check only after 5 seconds in the case of panels upon turning on the power. If recurrences are expected, ensure to clear (reset) the failure history and record the new self-check reults.

C bus (Vcc)

LOB OK FAN OK SYNC M:OK S:OK HD:OK TIM OK MSM OK DIGI OK MEM OK AVSW OK YC OK AIO OK TUN OK GCR OK IP OK RGB NG 2 DVI OK HDMI OK

Item Item

CHECK Normality : OK Abnormality : NG

* As “SYNC” is not counted, the number of failures not displayed.

< SELF-CHECK MODE (Page 2) >

FAN OK ALM OK TMP OK ATP OK ASH OK

PNL OK MEM OK TMP OK AIO OK

Fig. 2

(No.YA098) 1-47

5.1.6 DETAILS

Self- check is performed for the following items.

< Page 1 of screen >

Detection item

Low bias line short

Item

name

LOB

Detection content

Confirm the operation of the low bais (2.5V / 3.3V / 5V / 9V) protection circuit. Q9822 [REGULATOR PWB]

Fan lock Presence of sync signal

FAN SYNC

Not used. Confirmation of presence of video sync signal. M : Main sync signal S : Sub sync signal HD : Component sync signal

IC201 [ANALOG SIGNAL PWB] AC power input Main CPU communication

TIM MSM

Not used.

Confirmation of ACK (response)

signal which uses sync

communications with Chassis CPU.

IC7501 [DIGITAL SIGNAL PWB] BS digital tuner Main memory

DIGI MEM

Not used.

Confirmation of reply of ACK signal

which uses I

C communication.

IC7602 [DIGITAL SIGNAL PWB] AV select switch

AVSW

Same as above.

IC301, IC501

[ANALOG SIGNAL PWB] 3 dimensions YC separator Multi sound processor RF tuner

AIO

TUN

Same as above.

IC1001 [DIGITAL SIGNAL PWB]

Same as above.

IC3501 [RECEIVER PWB]

Same as above.

IC3001 [RECEIVER PWB] Ghost reduction DIST process

GCR IP

Not used.

Confirmation of reply of ACK signal

which uses I

C communication.

IC3001 [DIGITAL SIGNAL PWB] RGB proccess

RGB

Same as above.

IC4001 [DIGITAL SIGNAL PWB] DVI (Digital

DVI

Not used. communication) HDMI input

HDMI

Not used.

Detection

signal (line)

LB_PRO

---

SDA

---

WAKE

---

SDA

---

SDA

---

Detection timing

Detection starts 3 seconds after the power is turned on. If error continues between 400ms, the power is turned off. Not used. Confirmation of presence of sync signal in video signal.

Not used. If it checks whenever sync communication with SHM performed , and no reply of ACK signal, an error will be counted.

Not used. If it checks whenever I

C communication is performed, and no reply of ACK signal, an error will be counted. Same as above.

Same as above.

Not used. If it checks whenever I

C communication is performed, and no reply of ACK signal, an error will be counted. Same as above.

Not used.

1-48 (No.YA098)

< Page 2 of screen >

Detection item

Fan lock Abnormal of operation of PDP (PANEL)

Abnormal rise of temperature in PDP (PANEL)

Abnormal rise of temperature in AUDIO PWB

Short circuit detection of AUDIO PWB Panel communication

Sub memory

Temp. sensor

Audio control

Item

name

FAN ALM

TMP

ATP

ASH

PNL

MEM

TMP

AIO

Detection content

Not used. Confirm the operation of the panel protection. [PDP UNIT]

It detects whether the temperature in a display unit is normal. IC8101 [TEMP. SENSOR PWB]

It detects whether the temperature in a AUDIO PWB is normal. TH6401 [AUDIO PWB]

Not used.

It confirm whether panel communication is normal. [PDP UNIT] Confirmation of reply of ACK signal which uses I

C communication. IC805 [INTERFACE PWB] Same as above. IC8101 [TEMP. SENSOR PWB] Same as above. IC6521 [AUDIO PWB]

Detection

signal (line)

---

SDA

AMP_PRO1

---

SDA

Detection timing

Not used. Detection starts 8 seconds after the power is turned on. Detection is performed every 16ms. If errors continues between 300ms, the power is turned off. Detection starts 8 seconds after the power is turned on. Detection is performed every 0.5 seconds. If a temperature rises beyond the temperature

C for detection of error over the

of 71 predetermined 120 times, the power is turned off. Detection starts 5 seconds after the LOB is turned on. Detection is performed every 1 seconds.

If the temperature of 110

C is detected for 10 seconds or more, the power is turned off. Not used.

If it checks whenever I2C communication is performed, and no reply of ACK signal, an error will be counted. If it checks whenever I

C communication is performed, and no reply of ACK signal, an error will be counted. Same as above.

Same as above.

5.1.7 METHOD OF DISPLAY WHEN A RASTER IS NOT OUTPUT

In the state where a raster is not output by breakdown of the set, an error is displayed by blink of the POWER LED.

Type of error

Item name

POWER LED flash cycle

Low bias line short LOB Low luminance blue Flash 1.0 second / Low luminance blue Out 1.0 seconds

Abnormal of operation of PDP (PANEL) ALM High luminance blue Flash 1.0 second / High luminance blue Out 1.0 seconds

Abnormal rise of temperature in PDP (PANEL) TMP High luminance blue Flash 2.0 second / High luminance blue Out 2.0 seconds

Abnormal rise of temperature in AUDIO PWB ATP High luminance blue Flash 0.1 second / Low luminance blue Out 0.1 seconds

< Explanation of operation >

If error is detected, the power is turned off. Shortly after a power is turned off, POWER LED will be blinked. Power cannot be turned on until the power cord takes out and inserts, after a power is turned off.

(No.YA098) 1-49

Victor Company of Japan, Limited

AV & MULTIMEDIA COMPANY VIDEO DISPLAY CATEGORY 12, 3-chome, Moriya-cho, kanagawa-ku, Yokohama, kanagawa-prefecture, 221-8528, Japan

(No. YA098)

Printed in Japan

WPC

JVC pd35b50b schematic

Specifications and Main Features

Frequently Asked Questions

User Manual

PD-35B50BJ, PD-35B50BU PD-42B50BJ, PD-42B50BU

TABLE OF CONTENTS

SPECIFICATION

1.1 SAFETY PRECAUTIONS [EXCEPT FOR UK]

1. 2 SAFETY PRECAUTIONS [FOR UK]

1.3 INSTALLATION

1. 4 PRECAUTIONS REGARDING PDP

2.1 FEATURES

2. 2 MAIN DIFFERENCE LIST

2. 3 TECHNICAL INFORMATION

3.1 DISASSEMBLY PROCEDURE [42V MODEL]

3.2 DISASSEMBLY PROCEDURE [35V MODEL]

3.3 REPLACEMENT OF MEMORY IC

3.4 REPLACEMENT OF CHIP COMPONENT

4.1 ADJUSTMENT PREPARATION

4. 2 PRESETTING BEFORE ADJUSTMENT

4.4 BASIC OPERATION OF THE SERVICE MENU

4.3 MEASURING INSTRUMENT AND FIXTURES

4.5 MAIN PARTS LOCATIONS

4.5 INITIAL SETTING VALUES IN THE SERVICE MENU SETTING MODE

4.6 ADJUSTMENT PROCEDURE

5. 1 SELF-CHECK FEATURE