Sharp LC-46X8E/S/RU Service Manual

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LC-46X8E/S/RU

SERVICE MANUAL

No. S38G2LC46X8E/

LCD COLOUR TELEVISION

MODELS

In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its original condition and only parts identical to those specified should be used.

LC-46X8E/S/RU

OUTLINE

This Service Manual covers the differences from LC-46X8E/S/RU. For other technical information, refer to the LC-42X20E/S/RU (No. S87O8LC46X20E) for Service Manual.

CONTENTS

SAFETY PRECAUTION

IMPORTANT SERVICE SAFETY

PRECAUTION.....................................................i

Precautions for using lead-free solder ...............ii

CHAPTER 1. OPERATION MANUAL

[1] SPECIFICATIONS ......................................... 1-1

[2] OPERATION MANUAL .................................. 1-2

[3] DIMENSIONS ................................................ 1-7

CHAPTER 2. REMOVING OF MAJOR PARTS

[1] REMOVING OF MAJOR PARTS ................... 2-1

CHAPTER 3. ADJUSTMENT PROCEDURE

[1] ADJUSTMENT PROCEDURE ....................... 3-1

CHAPTER 4. TROUBLESHOOTING TABLE

[1] TROUBLESHOOTING TABLE ....................... 4-1

CHAPTER 5. MAJOR IC INFORMATIONS

[1] MAJOR IC INFORMATIONS.......................... 5-1

CHAPTER 6. BLOCK DIAGRAM/WIRING DIAGRAM

[1] SYSTEM BLOCK DIAGRAM .........................6-1

[2] TERMINAL BLOCK DIAGRAM .....................6-2

[3] MAIN BLOCK DIAGRAM...............................6-3

[4] WIRING DIAGRAM .......................................6-4

CHAPTER 7. PRINTED WIRING BOARD

[1] MAIN UNIT PRINTED WIRING BOARD........7-1

[2] TERMINAL UNIT PRINTED WIRING

BOARD.......................................................... 7-5

[3] R/C, LED UNIT/KEY UNIT PRINTED

WIRING BOARD ...........................................7-8

[4] MINI AV UNIT PRINTED WIRING

BOARD.......................................................... 7-9

CHAPTER 8. SCHEMATIC DIAGRAM

[1] DESCRIPTION OF SCHEMATIC

DIAGRAM...................................................... 8-1

[2] SCHEMATIC DIAGRAM ................................8-2

Parts Guide

Parts marked with " " are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the safety and performance of the set.

This document has been published to be used for after sales service only. The contents are subject to change without notice.

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LC46X8E

Service Manual

SAFETY PRECAUTION

IMPORTANT SERVICE SAFETY PRECAUTION

 WARNING

1. For continued safety, no modification of any circuit should be attempted.

2. Disconnect AC power before servicing.

 BEFORE RETURNING THE RECEIVER (Fire & Shock Hazard)

Before returning the receiver to the user, perform the following safety checks:

3. Inspect all lead dress to make certain that leads are not pinched, and check that hardware is not lodged between the chassis and other metal parts in the receiver.

4. Inspect all protective devices such as non-metallic control knobs, insulation materials, cabinet backs, adjustment and compartment covers or shields, isolation resistor-capacitor networks, mechanical insulators, etc.

5. To be sure that no shock hazard exists, check for leakage current in the following manner.

• Plug the AC cord directly into a 220~240 volt AC outlet.

• Using two clip leads, connect a 1.5k ohm, 10 watt resistor paralleled by a 0.15µF capacitor in series with all exposed metal cabinet parts and a known earth ground, such as electrical conduit or electrical ground connected to an earth ground.

• Use an AC voltmeter having with 5000 ohm per volt, or higher, sensitivity or measure the AC voltage drop across the resistor.

• Connect the resistor connection to all exposed metal parts having a return to the chassis (antenna, metal cabinet, screw heads, knobs and control shafts, escutcheon, etc.) and measure the AC voltage drop across the resistor. All checks must be repeated with the AC cord plug connection reversed. (If necessary, a nonpolarized adaptor plug must be used only for the purpose of completing these checks.) Any reading of 1.05 V peak (this corresponds to 0.7 mA peak AC.) or more is excessive and indicates a potential shock hazard which must be corrected before returning the monitor to the owner.

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

SAFETY NOTICE

Many electrical and mechanical parts in LCD color television have special safety-related characteristics.

These characteristics are often not evident from visual inspection, nor can protection afforded by them be necessarily increased by using replacement components rated for higher voltage, wattage, etc.

Replacement parts which have these special safety characteristics are identified in this manual; electrical components having such features

are identified by “ ” and shaded areas in the Replacement Parts List and Schematic Diagrams.

For continued protection, replacement parts must be identical to those used in the original circuit.

The use of a substitute replacement parts which do not have the same safety characteristics as the factory recommended replacement parts shown in this service manual, may create shock, fire or other hazards.

Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the

servicing guidelines which follow:

CAUTION:

FOR CONTINUED PROTECTION AGAINST A RISK OF FIRE REPLACE ONLY WITH SAME TYPE FUSE.

F7000 (6.3A/250V)

DVM

AC SCALE

1.5k ohm 10W

TO EXPOSED METAL PARTS

CONNECT TO KNOWN EARTH GROUND

0.15µF

TEST PROBE

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LC-46X8E/S/RU

Precautions for using lead-free solder

Employing lead-free solder

• “PWBs” of this model employs lead-free solder. The LF symbol indicates lead-free solder, and is attached on the PWBs and service manuals. The alphabetical character following LF shows the type of lead-free solder.

Example:

Using lead-free wire solder

• When fixing the PWB soldered with the lead-free solder, apply lead-free wire solder. Repairing with conventional lead wire solder may cause damage or accident due to cracks.

As the melting point of lead-free solder (Sn-Ag-Cu) is higher than the lead wire solder by 40 °C, we recommend you to use a dedicated soldering bit, if you are not familiar with how to obtain lead-free wire solder or soldering bit, contact our service station or service branch in your area.

Soldering

• As the melting point of lead-free solder (Sn-Ag-Cu) is about 220 °C which is higher than the conventional lead solder by 40 °C, and as it has poor solder wettability, you may be apt to keep the soldering bit in contact with the PWB for extended period of time. However, Since the land may be peeled off or the maximum heat-resistance temperature of parts may be exceeded, remove the bit from the PWB as soon as you confirm the steady soldering condition.

Lead-free solder contains more tin, and the end of the soldering bit may be easily corroded. Make sure to turn on and off the power of the bit as required.

If a different type of solder stays on the tip of the soldering bit, it is alloyed with lead-free solder. Clean the bit after every use of it.

When the tip of the soldering bit is blackened during use, file it with steel wool or fine sandpaper.

• Be careful when replacing parts with polarity indication on the PWB silk.

Lead-free wire solder for servicing

Part No. Description Code

ZHNDAi123250E J φ0.3mm 250g (1roll) BL ZHNDAi126500E J φ0.6mm 500g (1roll) BK ZHNDAi12801KE J φ1.0mm 1kg (1roll) BM

L Fa

Indicates lead-free solder of tin, silver and copper.

L F a/a

Indicates lead-free solder of tin, silver and copper.

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LC46X8E

Service Manual

CHAPTER 1. OPERATION MANUAL

[1] SPECIFICATIONS

When using Wall-mount bracket AN-52AG4

Wall bracket B has an attachment pitch of 400 mm. Assemble wall brackets using mark “C” on wall bracket A and mark “A” on wall bracket B. Mark “b” on wall bracket B shows the center position for the LCD TV. Install the Wall-mount Brackets using screw holes 2 . Refer to the Wall-mount bracket operation manual for details.

The listed optional accessories are available for the LCD colour TVs. Please purchase them at your nearest shop.

Additional optional accessories may be available in the near future. When purchasing, please read the newest catalogue for compatibility and check the availability.

No. Part name Part number

1 Wall mount bracket AN-52AG4

Specifications

Item

46" LCD COLOUR TV, Model: LC-46X8E, LC-46X8S

LCD panel

46" Advanced Super View & BLACK TFT LCD

Resolution

2,073,600 pixels (1920 1080)

Video Colour System PAL/SECAM/NTSC 3.58/NTSC 4.43/PAL 60

TV Function TV-Standard Analogue CCIR (B/G, I, D/K, L/L’)

Digital DVB-T (2K/8K OFDM)

Receiving Channel

VHF/UHF E2-E69ch, F2-F10ch, I21-I69ch, IR A-IR Jch (Digital: E5-E69ch)

CATV Hyper-band, S1-S41ch

TV-Tuning System Auto Preset 999 ch (ATV: 99 ch), Auto Label, Auto Sort

STEREO/BILINGUAL NICAM/A2

Brightness 450 cd/m

(at “DYNAMIC” mode)

Viewing angles H : 176° V : 176°

Audio amplifier

15W 2

Speaker

(100 mm 40 mm) 4

Terminals Antenna

UHF/VHF 75 Din type (Analogue & Digital)

RS-232C D-Sub 9 pin male connector

EXT1 SCART (AV input, Y/C input, RGB input, TV output)

EXT2 SCART (AV input/monitor output, Y/C input, AV Link, RGB input)

EXT3 S-VIDEO (Y/C input), RCA pin (AV input)

EXT4 HDMI

EXT5 HDMI

EXT6 HDMI, Ø 3.5 mm jack

EXT7 15 pin mini D-sub, Ø 3.5 mm jack

EXT8 COMPONENT IN: Y/P

B(CB)/PR(CR), RCA pin (L/R)

DIGITAL AUDIO OUTPUT Optical SPDIF Digital audio output

C. I. (Common Interface) EN50221, R206001

OUTPUT RCA pin (Audio)

Headphones Ø 3.5 mm jack (Audio output)

OSD language Czech, Danish, Dutch, English, Estonian, Finnish, French, German, Greek, Hungarian, Italian,

Latvian, Lithuanian, Norwegian, Polish, Portuguese, Russian, Slovak, Slovene, Spanish, Swedish, Turkish

Power Requirement AC 220 - 240 V,50 Hz

Power Consumption 245 W (0.5 W Standby) (Method IEC60107)

Weight 22.5 kg (Without stand), 26.5 kg (With stand)

Operating temperature

0°C to 40°C

As a part of policy of continuous improvement, SHARP reserves the right to make design and specification changes for product improvement without prior notice. The performance specification figures indicated are nominal values of production units. There may be some deviations from these values in individual units.

NOTE

Refer to the inside back cover for dimensional drawings.

Optional accessory

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[2] OPERATION MANUAL

16 17

18 19

20 21

5 6

7 8

(Standby/On)

Buttons for useful operations

(Teletext)

ATV: Display analogue teletext. DTV: Select MHEG-5 and teletext for DTV.

(Reveal hidden Teletext)

(Subtitle)

Switch subtitle languages on/off.

(Freeze/Hold)

Press to freeze a moving image on the screen. TELETEXT: Stop updating Teletext pages automatically or release the hold mode.

(Subpage)

(Top/Bottom/Full)

Set the area of magnification in teletext mode.

0 - 9 numeric buttons

Set the channel. Enter desired numbers. Set the page in teletext mode.

The channel display for the LC46X8S model has 4-digits and the LC-46X8E model has 3-digits.

(Flashback)

Press to return to the previous image in normal viewing mode.

DTV

Press to access DTV mode.

ATV

Press to access conventional analogue TV mode.

(Sound mode)

Select the sound multiplex mode.

( / ) (Volume)

Increase/decrease TV volume.

(Mute)

TV sound on/off.

(WIDE MODE)

Select the wide mode.

AV MODE

Select a video setting.

/ / / (Cursor)

Select a desired item on the setting screen.

Execute a command within the “MENU” screen. ATV/DTV: Display the programme list when no other “MENU” screen is running.

END

Exit the “MENU” screen.

R/G/Y/B (Colour) buttons

The coloured buttons are correspondingly used to select the coloured items on the screen. (e.g. EPG, MHEG-5, TELETEXT)

(INPUT SOURCE)

Select an input source.

EPG

DTV: Display the EPG screen.

RADIO

DTV: Switch between Radio and Data mode.

When only data broadcasting (no radio broadcasting) is transmitted by DVB, the radio broadcasting will be skipped.

P. INFO

Press to display programme information which is transmitted through digital video broadcasting in the upper left corner of the screen. (DTV only)

P( / )

Select the TV channel.

(Display information)

Press to display the station information (channel number, signal, etc.) in the upper right corner of the screen.

SLEEP

Press to schedule a time for the TV to automatically standby.

“MENU” screen on/off.

(Return)

Return to the previous “MENU” screen.

ACTION (Action Mode)

This key does not work on this model.

AQUOS LINK buttons

If external equipment such as a AQUOS BD Player is connected via HDMI cables and is AQUOS LINK compatible, you can use these AQUOS LINK buttons.

Remote control unit

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6 7891011

AC INPUT terminal EXT3 terminals EXT4 (HDMI) terminal Headphones SERVICE socket

1 2 3 4 5

TV (Front view)

TV (Rear view)

EXT1 (RGB) terminal EXT2 (RGB) terminal EXT8 (COMPONENT/AUDIO) terminals Antenna terminal OUTPUT (AUDIO) terminals DIGITAL AUDIO OUTPUT terminal

6 7 8

9 10 11

COMMON INTERFACE slot RS-232C terminal EXT5 (HDMI) terminal EXT6 (HDMI/AUDIO) terminals EXT7 (ANALOGUE RGB/AUDIO) terminals

12 13 14 15 16

Remote control sensor

OPC sensor

OPC indicator

SLEEP indicator

(Standby/On) indicator

MENU button

(Power) button

( / ) Volume buttons

P (/ ) Programme (channel) buttons

(INPUT SOURCE)

button

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1 – 4

Confirm that there are 8 screws (4 short screws and 4 long screws) with the stand unit.

Attach the supporting post for the stand unit onto the base using the 4 long screws with the hex key (supplied) as shown.

Preparation

Inserting the stand.

Insert the stand into the openings on the bottom of the TV. (Hold the stand so it will not drop from the edge of the base area.)

Insert and tighten the 4 short screws into the 4 holes on the rear of the TV.

NOTE

To detach the stand unit, perform the steps in reverse order.

Attaching the stand unit

Before attaching (or detaching) the stand, unplug the AC cord from the AC INPUT terminal. Before performing work spread cushioning over the base area to lay the TV on. This will prevent it from being damaged.

CAUTION

Attach the stand in the correct direction. Be sure to follow the instructions. Incorrect installation of the stand may result in the TV falling over.

Hex key

Long screw

Short screw

Soft cushion

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Preparation

Inserting the batteries

Before using the TV for the first time, insert two “AAA” size batteries (supplied). When the batteries become depleted and the remote control unit fails to operate, replace the batteries with new “AAA” size batteries.

Open the battery cover. Insert two supplied “AAA” size batteries.

Place batteries with their terminals corresponding to the (

) and ( ) indications in the battery compartment.

Close the battery cover.

CAUTION

Improper use of batteries can result in chemical leakage or explosion. Be sure to follow the instructions below.

Do not mix batteries of different types. Different types of batteries have different characteristics. Do not mix old and new batteries. Mixing old and new batteries can shorten the life of new batteries or cause chemical leakage in old batteries. Remove batteries as soon as they have worn out. Chemicals that leak from batteries can cause a rash. If you find any chemical leakage, wipe thoroughly with a cloth. The batteries supplied with this product may have a shorter life expectancy due to storage conditions. If you will not be using the remote control unit for an extended period of time, remove the batteries from it.

Note on disposing batteries:

The batteries provided contain no harmful materials such as cadmium, lead or mercury. Regulations concerning used batteries stipulate that batteries may no longer be thrown out with the household rubbish. Deposit any used batteries free of charge into the designated collection containers set up at commercial businesses.

Using the remote control unit

Use the remote control unit by pointing it towards the remote control sensor. Objects between the remote control unit and sensor may prevent proper operation.

1 2

Cautions regarding the remote control unit

Do not expose the remote control unit to shock. In addition, do not expose the remote control unit to liquids, and do not place in an area with high humidity. Do not install or place the remote control unit under direct sunlight. The heat may cause deformation of the unit. The remote control unit may not work properly if the remote control sensor of the TV is under direct sunlight or strong lighting. In such case, change the angle of the lighting or TV, or operate the remote control unit closer to the remote control sensor.

30° 30°

Remote control sensor

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Appendix

Troubleshooting

Problem Possible Solution

No power.

Check if you pressed on the remote control unit. If the indicator on the TV lights up red, press . Is the AC cord disconnected? Check if you pressed on the TV.

Unit cannot be operated. External influences such as lightning, static electricity, etc., may cause improper operation. In

this case, operate the unit after first turning the power off, or unplugging the AC cord and replugging it in after 1 or 2 minutes.

Remote control unit does not operate.

Are batteries inserted with polarity ( , ) aligned? Are batteries worn out? (Replace with new batteries.) Are you using it under strong or fluorescent lighting? Is a fluorescent light illuminated onto the remote control sensor?

Picture is cut off. Is the image position correct?

Are screen mode adjustments (WIDE MODE) such as picture size made correctly?

Strange colour, light colour, or dark, or colour misalignment.

Adjust the picture tone. Is the room too bright? The picture may look dark in a room that is too bright. Check the “Colour System” setting.

Power is suddenly turned off. The unit’s internal temperature has increased.

Remove any objects blocking the vent or clean. Is the “Sleep Timer” set? Select “Off” from the “Sleep Timer” menu. Is “No Signal Off” or “Ecology” activated?

No picture. Are connections to external equipment correct?

Is the input signal type selected correctly after connection? Is the correct input source selected? Is a non-compatible signal being input? Is the picture adjustment correct? Is the antenna connected properly? Is “On” selected in “Audio Only”?

No sound. Is the volume too low?

Make sure that headphones are not connected. Check if you pressed on the remote control unit.

The TV sometimes makes a cracking sound.

This is not a malfunction. This happens when the cabinet slightly expands and contracts according to change in temperature. This does not affect the TV’s performance.

Cautions regarding use in high and low temperature environments

When the unit is used in a low temperature space (e.g. room, office), the picture may leave trails or appear slightly delayed. This is not a malfunction, and the unit will recover when the temperature returns to normal. Do not leave the unit in a hot or cold location. Also, do not leave the unit in a location exposed to direct sunlight or near a heater, as this may cause the cabinet to deform and the LCD panel to malfunction. Storage temperature: +5°C to +35°C.

Information on the software license for this product

Software composition

The software included in this product is comprised of various software components whose individual copyrights are held by SHARP or by third parties.

Software developed by SHARP and open source software

The copyrights for the software components and various relevant documents included with this product that were developed or written by SHARP are owned by SHARP and are protected by the Copyright Act, international treaties, and other relevant laws. This product also makes use of freely distributed software and software components whose copyrights are held by third parties. These include software components covered by a GNU General Public License (hereafter GPL), a GNU Lesser General Public License (hereafter LGPL) or other license agreement.

Obtaining source code

Some of the open source software licensors require the distributor to provide the source code with the executable software components. GPL and LGPL include similar requirements. For information on obtaining the source code for the open source software and for obtaining the GPL, LGPL, and other license agreement information, visit the following website:

http://www.sharp-eu.com/gpl/

We are unable to answer any questions about the source code for the open source software. The source code for the software components whose copyrights are held by SHARP is not distributed.

Acknowledgements

The following open source software components are included in this product:

• linux kernel • modutils • glibc • zlib • libpng

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[3] DIMENSIONS

480.0 480,0

400.0 400,0

400.0

400,0

1023.4 1023,4

1101.0 1101,0

575.6

575,6

62.0

62,0

433.9

433,9

285.0 285,0

105.5 105,5

97.6 97,6

64.0 64,0

175.0

175,0

760.0

760,0

698.0

698,0

Unit: mm

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2 – 1

LC46X8E

Service Manual

CHAPTER 2. REMOVING OF MAJOR PARTS

[1] REMOVING OF MAJOR PARTS

1. Remove the 2 lock screws , 6 lock screws , 3 lock screws and the 4 lock screws . Detach the Rear Cabinet.

REAR CABINET

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2 – 2

2. Remove all the connectors from PWBs.

3. Remove the 2 lock screws . and detach the Speaker L/R.

Wire "SP"

Wire "SP-L"

Wire "LB"

Wire "LA"

Wire "SP" to PIN Wire "SP" to WH

Wire "SP"

Speaker R

Speaker L

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4. Remove all the connectors from PWBs.

#For EMC Set Wire "VD" under Wire "SP-R" (with core)

SP-R

for Wire "VD"

Wire "US" to WH

Wire "KM" to Hook

WH locks Core like this. Lock side set to Panel side #Prevention of contact to CAB-B

Wire "VD","KM to WH

Wire "HM","KM" to WH

Wire "KM" to WH

Wire "VD" to WH

Wire "VD"

Wire "US"

Wire "KM"

Wire "LB", "FR" to WH

Wire "LW" to WH

Wire "LB", "LA" to WH

# For EMC Set Wire "LW" under other wires

Stick insulation tape so as not to put stress on root of wire

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5. Remove all the connectors from PWBs.

6. Remove the R/C, LED Unit.

7. Remove all the connectors from PWBs.

Wire "RA"

R/C, LED PWB Back side

Pull out Wire "RA" from

1st, Set R/C, LED PWB under LIB

Next, Push PWB hooked

Set Wire "RA" to panel hollow

# Set PWB to guide lib

R/C, LED PWB

Wire "RA"

R/C, LED PWB Front side

R/C, LED PWB (with wire)

Wire "RA" to WH

Wire "KM"

Wire "LW"

Wire "PL" Wire "FR"

Wire "LA"

Wire "VD"

FFC "HM"

Wire "US"

Set taping to core inside.

To Main PWB

To Key PWB

Wind wire "KM" one time to core.

Wire "LB"

# For EMC, Set Wire "LW" under other wires

for Wire "KM"

# Wind Wire "KM" one time to core

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8. Remove the 2 lock screws . Detach the MINI AV Sub Ass’y.

9. Remove the 3 lock screws , and 11 lock screws . Detach the Chassis Tray and Side Key Angle.

# While fix screw, forcing Mini AV PWB to M-AV KEY

Mini AV Sub Ass'y

Chassis Tray

Side KEY Angle

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2 – 6

10.Remove the 14 lock screws . and detach the Panel Support Angle.

PNL SUPPORT ANG

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11.Remove the 4 lock screws , 4 lock screws , and the 4 lock hooks . Detach the LCD Panel Module.

Cushion with washer

LCD MODULE

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12.Remove the 1 lock screw . and detach the Bottom Cover.

FRONT CABINET

BOTTOM COVER

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2 – 9

13.Remove the 5 lock hooks , 1 lock screw , and 6 lock hooks . and detach the KEY Unit.

14.Remove the 2 lock screws . Detach the MINI AV Unit.

14 15

M-AV KEY COV

Top View

#Set PWB under LIB

MINI AV PWB

KEY PWB

Back View

CONTROL BUTTON

KEY PWB

MINI AV PWB

MINI-AV SHIELD

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15.Remove all the connectors from PWBs.

16.Remove the 10 lock screws . and detach the Main Shield and AV Shield.

Wire "LW" to WH

Wire "LW"

AV SHIELD

MAIN SHIELD

Wire "LW"

Pull out Wire "LW" form Opening < Positioning of Wire "PD" >

Wire "PD"

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17.Remove all the connectors from PWBs.

18.Remove the 2 lock screws , and the 1 lock screw . Detach the Terminal Angle Bottom.

B to B connection

Pull same time

TML ANG BTM

19 20

SCART ANGLE

#SCART Angle Stepping on terminal

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19.Remove all the connectors from PWBs.

Wire "VD" to WH #Set Wire "VD" under

Wire "SP-R" FOR EMC

Wire "KM"

FFC "HM"

Wire "RA","US","VD" to WH

#For EMC,Set Wire "VD" under "US","RA"

Wire "KM,"HM" to WH

Wire "RA","US","KM" to WH

Wire "US" Wire "RA"

#Don't make mistake Wire "VD" and "RA"

for Wire "US","RA"

Wire "VD"

Wire "SP-R" #Set at SRC

Core for "SP-R" #Set at SRC

SP-R

FFC "HM" to WH

Wire "VD"

Wire "RA"

Wire "US"

FFC "HM"

Wire "KM"

Wire "LB"

Wire "LA"

Wire "PL"

Wire "FR"

Wire "LB","FR" to WH

Unnecessary

Wire "LB"

Wire "PL"

Wire "FR"

Wire "LW"

Wire "LB","FR","PL" to WH

Wire "LB" to WH

Wire "LA"

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3 – 1

LC46X8E

Service Manual

CHAPTER 3. ADJUSTMENT PROCEDURE

[1] ADJUSTMENT PROCEDURE

1. Adjustment method after PWB and/or IC replacement due to repair

The unit is set to the optimum at the time of shipment from the factory. If any value should become improper or any adjustment is necessary due to the part replacement, make an adjustment according to the following procedure.

1. Procure the following units in order to replace the main unit, IC3301, IC8101, IC3501, IC3502, IC8301, IC8302, IC8303, or IC8304.

NOTE: [Caution when replacing ICs in the main unit (IC1501/IC1502/IC1503/IC2002) or the mini av unit (IC802)]

The above ICs are EEPROMs storing the EDID data of HDMI and the monitor microcomputer. Before replacing the relevant part, procure the following parts in which the data have been rewritten.

2. After replacing the LCD panel or LCD control PWB, check PANEL_SIZE in the following procedure.

1) Enter the process adjustment mode.

2) Use the cursor keys ( / ) and P ( / ) of R/C to select the item [PANEL_SIZE] on the page 33/33.

3) Verify that the panel size is displayed.

4) If the size doesn't match, select the values of the panel size with the VOL (+/-) keys.

5) After selection in Step 4), press the OK key, and it is completed with OK displayed.

3. After replacing the LCD panel or LCD control PWB, adjust the VCOM in the following procedure.

1) Enter the process adjustment mode.

2) Use the cursor keys ( / ) and P ( / ) of R/C to select the item [VCOM ADJ] on the page 10/33.

3) Press the OK key to verify that the adjustment pattern is displayed.

4) Use the VOL keys (+/-) of R/C to adjust the flicker in the center of the screen to minimum.

5) When the optimal state is achieved in Step 4, press the OK key to turn the pattern to OFF.

MAIN UNIT: DUNTKE186FM02

IC2002 RH-IXB986WJN8Q Monitor microcomputer IC802 RH-IXC284WJQZS HDMI_EXT4 IC1501 RH-IXC285WJQZS HDMI_EXT5 IC1502 RH-IXC286WJQZS HDMI_EXT6 IC1503 RH-IXC287WJQZS PGB (PC)_EXT7

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3 – 2

2. Entering and exiting the adjustment process mode

1. Press the “POWER” key on the set of running TV set to force off the power.

2. While holding down the “VOL (-)” and “INPUT” keys on the set at once, press the “MAIN POWER” key on the set to turn on the power or plug in the AC power cord to turn on the power.

The letter “K” appears on the screen.

3. Next, hold down the “VOL (-)” and “P (V)” keys on the set at once.

Multiple lines of character string appearing on the screen indicate that the set is now in the adjustment Process mode. If you fail to enter the adjustment process mode (the display is the same as normal startup), retry the procedure. (Another procedure)

4. Another procedure

1) Press the “MENU” key on the main unit to display OSD.

2) Move the cursor to SERVICE (OSD) using the cursor keys on the remote control.

Then press the “MENU” key on the remote control to enter the service mode (adjustment process mode).

5. To exit the adjustment process mode after the adjustment is done, unplug the AC power cord to force off the power. (When the power is turned off with the remote controller, once unplug the AC power cord and plug it in again. In this case, wait 10 seconds or so before plugging.)

3. Remote controller key operation and description of display in adjustment process mode.

1. key operation

Input mode is switched automatically when relevant adjustment is started so far as the necessary input signal is available.

4. Description of display

CAUTION: Use due care in handling the information described here lest the users should know how to enter the adjustment process mode. If the

settings are tampered with in this mode, unrecoverable system damage may result.

Remote controller key Main unit key Function

P (/) P (/)

Moving an item (line) by one (UP/DOWN)

VOL (+/-) VOL (+/-) Changing a selected item setting (+1/-1)

Cursor ( / )

— Turning a page (PREVIOUS / NEXT)

Cursor ( / )

— Changing a selected line setting (+10/-10)

INPUT SOURCE on remote controller

— Input source switching (toggle switching) (TV→EXT1~8)

RETURN — Returning to a present page OK — Executing a function

No. Description Display specification

(1) Present page/number of total pages 2char/2char Decimal Number mark. (2) Page present title It bundles it by Max. 15 char “[“ ”]”. (3) Input that has been selected now TV/INPUT1/INPUT2/INPUT3/INPUT5/INPUT6/INPUT7/INPUT8 (4) Present colour system NTSC/PAL/SECAM/COMP15K/COMP33K/COMP45K/COMP28K/COMP31K (5) Inducing display EUROPE/RUSSIA/SWEDEN (6) Model name MODEL NAME (7) Item name Max. 30 char (8) Parameter Max. 60 char

(1) Present page/number of total pages (5) Inducing display

(3) Input that has been selected now

(2) Page present title (4) Present colour system (6) Model name

1/33 [INFO] INPUT1 AUTO EURO 46E_X8E

MAIN Version BOOT Version Monitor Version

CPLD Version

FRC Version

EQ DATA CHECKSUM LAMP ERROR MONITOR ERR CAUSE NORMAL STANDBY CAUSE ERROR STANDBY CAUSE

1.10 (E 2008/02/10 D)

1.08

1.05 a6 ROM

0 11 11 11 11 0

1) 0 2) 0 3) 0

0H 0M 0H 0M 0H 0M

4) 0 5) 0

0H 0M 0H 0M

(7) Item name (8) Parameter

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5. Adjustment process mode menu

The character string in brackets [ ] will appear as a page title in the adjustment process menu header.

Page Line Item Description Remarks (adjustment detail, etc.)

1/33 [INFO]

1 MAIN Version Main software version 2 BOOT Version BOOT Version. 3 Monitor Version Monitor software version 4 FRC Version FRC Version 5 CPLD Version CPLD Version. 6 EQ DATA CHECKSUM Audio data checksum. 7 LAMP ERROR Number of termination due to lamp error. 8 MONITOR ERR CAUSE Last error standby cause. 9 NORMALSTANDBY CAUSE Situation that became standby at the end.

(Excluding the error)

10 ERROR STANDBY CAUSE [1] 00H 00M Error standby cause Total operating time before error.

[2] 00H 00M [3] 00H 00M [4] 00H 00M [5] 00H 00M

2/33 [INIT]

1 INDUSTRY INIT Enter Initialization to factory settings execution. 2 INDUSTRY INIT(-Hotel) OFF Initialization to factory settings execution.

(Hotel mode is excluded) 3 HOTEL MODE OFF Hotel mode setting execution. 4 Center Acutime 5H 0M Main operating hours. 5 RESET OFF Main operating hours reset. 6 Backlight Acutime 19H 35M Backlight operating hours. 7 RESET OFF Backlight operating hours reset. 8 LAMP ERROR RESET OFF Lamp error reset. 9 ADJ PARAM SET Enter ADJ PARAM SET

10 VIC XPOS 0 X-coordinate setting for VIC READ 11 VIC YPOS 0 Y-coordinate setting for VIC READ 12 VIC SIGNAL TYPE MAIN Signal type setting for VIC READ 13 VIC READ OFF Picture level acquisition function

(Level appears in green on the upper right)

3/33 [TUNER ADJ]

1 RF AGC ADJ Enter RF-AGC auto adjustment execution 2 TUNER ADJ Enter TUNER auto adjustment execution 3 PAL+TUNER ADJ Enter PAL TUNER auto adjustment execution 4 RF AGC ADJ(CA-8CH) Enter RF-AGC auto adjustment execution (CA-8CH) 5 TUNER ADJ(CA-8CH) Enter TUNER auto adjustment execution (CA-8CH) 6 PAL+TUNER ADJ(CA-8CH) Enter PAL TUNER auto adjustment execution (CA-8CH) 7 RF AGC 16 RF AGC adjustment 8 TUNER DAC 150 TUNER signal level adjustment 9RF AGC READ OFF

4/33 [PAL MAIN]

1 PAL ADJ Enter PAL adjustment 2 SECAM ADJ Enter SECAM adjustment 3 N358 ADJ Enter N358 adjustment 4 PAL CONTRAST 130 PAL contrast adjustment 5 SECAM CONTRAST 137 SECAM CONTRAST adjustment 6 N358 CONTRAST 120 N358 CONTRAST adjustment

5/33 [CEC TEST]

1 HDMI CEC TEST Enter CEC test 2 INSPECT USB TERM Enter 3 MONIDATA READ[TEMP/OPC] OFF MONITOR Temperature/ OPC Acquisition tool. 4 CAUSE RESET Enter

6/33 [COMP15KMAIN]

1 COMP15K ALL ADJ Enter Component 15K picture level adjustment 2 COMP15K MAIN Y GAIN 194 Y GAIN adjustment value 3 COMP15K MAIN CB GAIN 215 Cb GAIN adjustment value 4 COMP15K MAIN CR GAIN 212 Cr GAIN adjustment value 5 COMP15K Y OFFSET 66 Y OFFSET adjustment value 6 COMP15K CB OFFSET 512 Cb OFFSET adjustment value 7 COMP15K CR OFFSET 513 Cr OFFSET adjustment value

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Page Line Item Description Remarks (adjustment detail, etc.)

7/33 [HDTV]

1 HDTV ADJ Enter HDTV video level adjustment 2 HDTV Y GAIN 195 HDTV Y GAIN adjustment value 3 HDTV CB GAIN 205 HDTV Cb adjustment value 4 HDTV CR GAIN 203 HDTV Cr adjustment value 5 HDTV Y OFFSET 65 HDTV Y OFFSET adjustment value 6 HDTV CB OFFSET 512 HDTV Cb OFFSET adjustment value 7 HDTV CR OFFSET 512 HDTV Cr OFFSET adjustment value

8/33 [ANALOG PC]

1 ANALOG PC ADJ Enter DVI ANALOG video level adjustment 2 R OFFSET 64 R CUTOFF adjustment value 3 G OFFSET 64 G CUTOFF adjustment value 4 B OFFSET 66 B CUTOFF adjustment value 5 R GAIN 193 R DRIVE adjustment value 6 G GAIN 189 G DRIVE adjustment value 7 B GAIN 194 B DRIVE adjustment value

9/33 [SCART]

1 SCART RGB ADJ Enter SCART RGB level adjustment 2 SCART R CUTOFF 65 SCART R CUTOFF adjustment value 3 SCART G CUTOFF 60 SCART G CUTOFF adjustment value 4 SCART B CUTOFF 64 SCART B CUTOFF adjustment value 5 SCART R GAIN 200 SCART R GAIN adjustment value 6 SCART G GAIN 195 SCART G GAIN adjustment value 7 SCART B GAIN 201 SCART B GAIN adjustment value

10/33 [LUMAADJ]

1VCOM ADJ 69 2 LCD LUMA ADJ Enter 3 LCD LUMA UP 26 4 LCD LUMA DOWN 13

11/33 [FR DDRTEST]

1 DDRA TEST1 Enter 2 DDRA TEST2 Enter 3 DDRB TEST1 Enter 4 DDRB TEST2 Enter 5 DDRB TEST3 Enter 6 FRC ON/OFF Enter 7 SOUSAM DDR BIST Enter 8 SOUSAS DDR BIST Enter

12/33 [LEV]

1 LEV1 176 2 LEV2 352 3 LEV3 528 4 LEV4 656 5 LEV5 800 6 LEV6 928

13/33 [MGXX1]

1 MG1R 178 W/B adjustment, gradation 1R adjustment value 2 MG1G 184 W/B adjustment, gradation 1G adjustment value 3 MG1B 138 W/B adjustment, gradation 1B adjustment value 4 MG2R 227 W/B adjustment, gradation 2R adjustment value 5 MG2G 232 W/B adjustment, gradation 2G adjustment value 6 MG2B 177 W/B adjustment, gradation 2B adjustment value 7 MG3R 316 W/B adjustment, gradation 3R adjustment value 8 MG3G 322 W/B adjustment, gradation 3G adjustment value 9 MG3B 249 W/B adjustment, gradation 3B adjustment value

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Page Line Item Description Remarks (adjustment detail, etc.)

14/33 [MGXX2]

1 MG4R 474 W/B adjustment, gradation 4R adjustment value 2 MG4G 485 W/B adjustment, gradation 4G adjustment value 3 MG4B 384 W/B adjustment, gradation 4B adjustment value 4 MG5R 791 W/B adjustment, gradation 5R adjustment value 5 MG5G 815 W/B adjustment, gradation 5G adjustment value 6 MG5B 673 W/B adjustment, gradation 5B adjustment value 7 MG6R 905 W/B adjustment, gradation 6R adjustment value 8 MG6G 948 W/B adjustment, gradation 6G adjustment value 9 MG6B 800 W/B adjustment, gradation 6B adjustment value

15/33 [ACTIVEBL1]

1 ABL TEST MODE Enter 2 PRINT DEBUG OFF

16/33 [SOUND1]

1 AUDIO_PARAMETER_SWITCH ROM 2AU_FLAT 3 INPUT_MIXER_GAIN 4 OUTPUT_MIXER_GAIN 5 PEQ1_F0 6 PEQ1_Q 7 PEQ1_GAIN 8 PEQ2_F0 9 PEQ2_Q

10 PEQ2_GAIN 11 PEQ3_F0 12 PEQ3_Q 13 PEQ3_GAIN

17/33 [SOUND 2]

1 PEQ4_F0 2 PEQ4_Q 3 PEQ4_GAIN 4 PEQ5_F0 5 PEQ5_Q 6 PEQ5_GAIN 7 GAIN_ADJUSTER1 8 GAIN_ADJUSTER2 9 GAIN_ADJUSTER3

10 GAIN_ADJUSTER4 11 GAIN_ADJUSTER5 12 GAIN_ADJUSTER6_SP 13 GAIN_ADJUSTER6_HP

18/33 [SOUND 3]

1 LOUT1_VOLUME_CONTROL 2 ROUT1_VOLUME_CONTROL

19/33 [M PWM]

1 2PWM 3PWM FREQ 4 PWM DUTY 5OSC FREQ 6 OSC DUTY

20/33 [M OPC1]

1 OPC LDUTY0 2 OPC LDUTY1 3 OPC LDUTY2 4 OPC LDUTY3 5 OPC LDUTY4 6 OPC LDUTY5 7 OPC LDUTY6 8 OPC LDUTY7 9 OPC LDUTY8

10 OPC LDUTY9 11 OPC LDUTY10 12 OPC LDUTY11

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Page Line Item Description Remarks (adjustment detail, etc.)

21/33 [M OPC2]

1 OPC LDUTY12 2 OPC LDUTY13 3 OPC LDUTY14 4 OPC LDUTY15 5 OPC LDUTY16 6 OPC LDUTY17 7 OPC LDUTY18 8 OPC LDUTY19 9 OPC LDUTY20

10 OPC LDUTY21 11 OPC LDUTY22

22/33 [M OPC3]

1 OPC LDUTY23 2 OPC LDUTY24 3 OPC LDUTY25 4 OPC LDUTY26 5 OPC LDUTY27 6 OPC LDUTY28 7 OPC LDUTY29 8 OPC LDUTY30 9 OPC LDUTY31

10 OPC LDUTY32

23/33 [M ADL1]

1 OPC33 ADLEVEL 0 2 OPC33 ADLEVEL 1 3 OPC33 ADLEVEL 2 4 OPC33 ADLEVEL 3 5 OPC33 ADLEVEL 4 6 OPC33 ADLEVEL 5 7 OPC33 ADLEVEL 6 8 OPC33 ADLEVEL 7 9 OPC33 ADLEVEL 8

10 OPC33 ADLEVEL 9 11 OPC33 ADLEVEL 10 12 OPC33 ADLEVEL 11

24/33 [M ADL2]

1 OPC33 ADLEVEL 12 2 OPC33 ADLEVEL 13 3 OPC33 ADLEVEL 14 4 OPC33 ADLEVEL 15 5 OPC33 ADLEVEL 16 6 OPC33 ADLEVEL 17 7 OPC33 ADLEVEL 18 8 OPC33 ADLEVEL 19 9 OPC33 ADLEVEL 20

10 OPC33 ADLEVEL 21 11 OPC33 ADLEVEL 22

25/33 [M ADL3]

1 OPC33 ADLEVEL 23 2 OPC33 ADLEVEL 24 3 OPC33 ADLEVEL 25 4 OPC33 ADLEVEL 26 5 OPC33 ADLEVEL 27 6 OPC33 ADLEVEL 28 7 OPC33 ADLEVEL 29 8 OPC33 ADLEVEL 30 9 OPC33 ADLEVEL 31

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Page Line Item Description Remarks (adjustment detail, etc.)

26/33 [M V6THE]

1V6 OS THERMO 1 64 2V6 OS THERMO 2 77 3V6 OS THERMO 3 87 4V6 OS THERMO 4 97 5 V6 OS THERMO 5 108 6 V6 OS THERMO 6 119 7 V6 OS THERMO 7 131

27/33 [M V5THE]

1V5 OS THERMO 1 64 2V5 OS THERMO 2 77 3V5 OS THERMO 3 87 4V5 OS THERMO 4 97 5 V5 OS THERMO 5 108 6 V5 OS THERMO 6 119 7 V5 OS THERMO 7 131

28/33 [M BLCTL TEMP]

1BL TEMP1 2BL TEMP2 3BL TDUTY

29/33 [M EEP SET]

1 MONITOR TIME OUT ON Monitor and the main communication time-out setting 2 MONITOR MAX TEMP 43 MONITOR MAX temperature setting 3 MONITOR EEP READ / WRITE WRITE MONITOR EEPROM READ/WRITE Setting/execution 4 MONITOR EEP ADR 0x 0 MONITOR EEPROM arbitrary addressing 5 MONITOR EEP DATA 0x 0 MONITOR EEPROM arbitrary data specification

30/33 [M TEST PATTERN]

1 LCD TEST PATTERN OFF Pattern with built-in LCD controller display

31/33 [MEM CLEAR]

1 KEY LOCK(1217) Enter 2 KOUTEI AREA ALL CLEAR Adjustment value clearness in all areas in process 3 A MODE AREA CLEAR Adjustment value clearness of process A mode 4 BACKUP AREA CLEAR Adjustment value clearness in process backup area 5 B MODE AREA CLEAR Adjustment value clearness of process B mode 6 EXECUTION Clear execution

32/33 [FR REGI]

1 READ/WRITE READ 2 SLAVE ADDRESS SLAVE0 3 REGISTOR ADDRESS 0x 0

0x 0

4 WRITE DATA 0x 0

0x 0

5 READ DATA 0x 0

0x 0

33/33 [ETC]

1 EEP SAVE OFF Writing setting values to EEPROM. 2 EEP RECOVER OFF Reading setting values from EEPROM. 3 MONITOR ERROR CAUSE RESET OFF Reset of monitor error cause. 4 STANDBY CAUSE RESET OFF Reset stand by cause. 5 MODEL NAME X8E Model name setting 6 PANEL SIZE 46 Panel size setting. 7 PRODUCT EEP ADR 0x 0 8 PRODUCT EEP DATA 0x 0

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6. Special features

1. NORMAL STANDBY CAUSE (Page 1/33)

Display of a cause (code) of the last standby.

The cause of the last standby is recorded in EEPROM whenever possible.

Checking this code will be useful in finding a problem when you repair the troubled set.

2. EEP SAVE (Page 33/33)

Storage of EEP adjustment value

3. EEP RECOVER (Page 33/33)

Retrieval of EEP adjustment value from storage area.

7. Lamp error detection

1. Function

This LCD color TV set incorporates a lamp error detection feature that automatically turns off the power for safety under abnormal lamp or lamp circuit conditions. If by any chance anything is wrong with the lamp or lamp circuit or if the lamp error detection feature is activated for some reason, the following will result.

1) The power is interrupted in about 6 seconds after it is turned on.

(The power LED on the front of the TV set turns red from green and keeps blinking in red: ON for 250 ms and OFF for 1 sec.).

2) If the above phenomenon 1) occurs 5 times consecutively, it becomes impossible to turn on the power. (The power LED remained red).

2. Measures

1) Checking with lamp error detection OFF

Enter the adjustment process mode, referring to 2. Entering and exiting the adjustment process mode.

If there is a problem with the lamp or lamp circuit, the lamp will go out. (The power LED is green.)

Then, you can check the operation to see if the lamp and lamp circuit are in trouble.

2) Resetting the lamp error count

After the lamp and lamp circuit are found out of trouble, reset the lamp error count. If a lamp error is detected five consecutive times, the power cannot be turned on. Using the cursor (UP/DOWN) key, move to the cursor to [LAMP ERROR RESET], Line 8 on adjustment process mode service page 2/33. With the cursor (LEFT/RIGHT) keys, select the [LAMP ERROR RESET] value. Finally press the cursor (OK) keys to reset the value to “0”.

Table of contents of adjustment process mode Page 2/33

[INIT]

INDUSTRY INIT Enter INDUSTRY INIT(-Hotel) OFF HOTEL MODE OFF Center Acutime RESET

OFF

Backlight Acutime RESET

OFF

LAMP ERROR RESET

OFF ADJ PARAM SET Enter VIC XPOS 0 VIC YPOS 0 VIC SIGNAL TYPE MAIN VIC READ OFF

Resetting to "0"

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8. Public Mode (Hotel Mode)

1. Starting the Public Mode

• There are two following ways to display the PUBLIC Mode setting screen.

1) On the process adjustment mode screen (2/33), set the “HOTEL MODE” Flag to ON.

Turn off the power, and turn it on again, pressing the and keys of the main unit at the same time.

2) Enter the Pass Word, and start the unit.

a) Turn on the power, pressing the and keys of the main unit at the same time.

b) Display the Pass Word input screen.

Operation procedure

• The initial input position is the digit at the left end.

• For the numeric keys to of R/C, key input is accepted. Input of the other keys is prohibited.

• Change “-” to “*” by inputting the numeric key at the input position, and shift the input position rightward one digit.

• When three digits are completely input, the Pass Word is judged.

c) Check the Pass Word by inputting three digits.

If the Pass Word is , it shifts to the PUBLIC Mode setting screen.

In another case, the screen is erased, and it operates in the ordinary mode.

2. Exiting the Public Mode screen

• There are two following ways to exit the Public Mode setting screen.

1) Turn off the power.

2) Select “EXECUTE” in the PUBLIC_Mode to execute it.

Activate the restart under the set content. Here, the START input SOURCE setting is excluded since this item is referred to only when the power is turned on.

3. Set value of the Public Mode

• Each set value in the PUBLIC Mode is initialized when the factory setting is applied.

(The setting of the PUBLIC MODE Flag in the process adjustment mode screen is not changed.)

CHANNEL UP

Volume UP

INPUT

Volume UP

2 7

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4. Basic operation in the Public Mode

5. Operation after “RESET”

Select “RESET” in the PUBLIC Mode, and it operates as follows when it is executed (refer to the basic operation).

• The set contents in the PUBLIC mode are initialized.

• It does not exit the PUBLIC mode.

• PUBLIC MODE Flag does not change. (It is not set to OFF.)

Volume (+/-) or Cursor ( / )

Change or execution of the set value.

Channel ( / ) or Cursor ( / )

Movement to the selected item.

Decision (ok) Execution (Used by the items “Execution” and “RESET”.) PUBLIC Mode R/C Ordinary operation mode: It enters the PUBLIC Mode.

PUBLIC MODE Flag is set to “ON”.

PUBLIC Mode: It exits the PUBLIC Mode.

PUBLIC MODE Flag does not change. Any set item in PUBLIC Mode is not initialized.

Public Mode

POWER ON FIXED [VARIABLE]

SHUT DOWN MODE [NORMAL]

MAXIMUM VOLUME [60]

VOLUME FIXED [VARIABLE]

VOLUME FIXED LEVEL [20]

RC BUTTON [RESPOND]

PANEL BUTTON [RESPOND]

MENU BUTTON [RESPOND]

AV POSITION FIXED [VARIABLE]

ON SCREEN DISPLAY [YES]

INPUT MODE START [NORMAL]

INPUT MODE FIXED [VARIABLE]

LOUD SPEAKER [ON]

RC PATH THROUGH [OFF]

232C POWON [DISABLE]

HOTELMODE [ON]

RESET

EXECUTE

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6. Setting items (* Item names and selective items are expressed in English.)

1) Power ON Fixed (POWER ON FIXED)

If the power button is pressed in the ordinary mode when set to “FIXED”, the caution is displayed for 5 seconds.

When power button on the main unit is pressed When power button on R/C is pressed

* The OSD display is an example.

If another ODS is previously displayed, the status is reset (MENU or similar).

2) Volume Maximum Level [MAXIMUM VOLUME]

3) Volume Fixed [VOLUME FIXED]

4) Volume Fixed Level [VOLUME FIXED LEVEL]

Selection “VARIABLE” or “FIXED” is selectable. (Loop is provided.) Default “VARIABLE” Function • When "FIXED" is set, “Power ON/Standby Key” of the main unit and R/C is disabled. Keys disabled when not set to Default

• OFF_TIMER (SLEEP)

Remarks The function does not work for any other standby factors (see below).

• No operation OFF

• No signal OFF (including the power management)

Selection 0~60 (Loop is not provided.) Default 60 Function • Even if VOL is adjusted to a value higher than the adjusted one, it is not set to that value. (Only the speakers of

the main unit) Exception Remarks • When it is set to 59 or less, the number is displayed and the volume bar is not displayed during operation in the

ordinary mode.

• VOLUME can be abbreviated to VOL.

Selection “VARIABLE” or “FIXED” is selectable. (Loop is provided.) Default “VARIABLE” Function It is selectable whether or not the volume is fixed to the value adjusted in the volume fixed level mode. (Only the

speakers of the main unit) Exception • In the adjustment process, the volume can be set as desired regardless of this setting. Keys disabled when not

set to Default

• Volume high/low (VOL+/-) (Both R/C and main unit)

• Mute (MUTE)

Remarks • Volume Fixed is prior to Volume Maximum Level.

• Even if the above disabled keys are operated, the volume is not displayed.

• VOLUME can be abbreviated to VOL.

Selection 0~60 (Loop is not provided.) Default Currently set volume Function The volume is fixed to the adjusted value. (Only the speakers of the main unit) Exception • In the adjustment process, the volume can be set as desired regardless of this setting. Keys disabled when not set to Default Remarks • When Volume Fixed is set to “VARIABLE”, the setting is inhibited to change.

• VOLUME can be abbreviated to VOL.

No Power off by power button. No Power off by remote control.

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5) R/C Operation [RC BUTTON]

6) Main Unit Operation [PANEL BUTTON]

7) MENU Operation [MENU BUTTON]

8) OSD Display [ON SCREEN DISPLAY]

9) Start Mode [INPUT MODE START]

Selection “RESPOND” or “NO RESPOND” is selectable. (Loop is provided.) Default RESPOND Function R/C key operation is set.

When set to “NO RESPOND”, the R/C keys are disabled in the ordinary mode.

The power key (Power ON/Standby Key) is also disabled. Exception • Regardless of the setting contents, the process mode, inspection mode and PUBLIC_Mode Key are enabled.

• Regardless of the setting contents, all keys can be used while entering the process mode, inspection mode or PUBLIC_Mode.

Remarks The CARD function stops all functions including the input switching and direct key when set to “NO RESPOND”.

Selection “RESPOND” or “NO RESPOND” is selectable. (Loop is provided.) Default RESPOND Function NO RESPOND: Excluding power supply (Video/Standby key), the main unit keys are disabled. Exception • Regardless of the setting contents, the start operation of the process mode, inspection mode and PUBLIC_Mode

is enabled.

• Regardless of the setting contents, all keys can be used while entering the process mode, inspection mode and PUBLIC_Mode.

Selection “RESPOND” or “NO RESPOND” is selectable. (Loop is provided.) Default RESPOND Function The MENU keys on the main unit and R/C MENU are disabled. Exception • Regardless of the setting contents, the start operation of the process mode, inspection mode and PUBLIC_Mode

is enabled.

• Regardless of the setting contents, all keys can be used whileentering the process mode, inspection mode or PUBLIC_Mode.

Key that becomes invalid excluding Default besides MENU Key because of setting

ON_TIMER, Auto Preset, Manual_Memory, and clock setting All Direct Shift keys to the MENU display

Remarks When set to “NO RESPOND”,

• ON_TIMER is set to “OFF”.

Selection “YES” or “NO” is selectable. (Loop is provided.) Default YES Function When set to “NO”, the following OSD is not displayed.

Register, Setting, Adjustment MENU, Channel_Call, Volume Bar In the case of Wide Model, if the following operation is performed, it is immediately switched (since MENU can not be displayed).

Input switching Keys which can be enabled (Exquisite

example)

Brightness sensor, light control

Keys disabled when not set to Default (Example)

Still screen, screen display, MENU, OFF_TIMER, A V Position, Wide Mode switch, Auto Instolation

Remarks • When set to “NO”,

a) The OFF_TIMER (SLEEP TIMER) setting time is cleared.

Selection “NORMAL”, “TV(*Channel)”, “INPUT1”, “INPUT2” (Loop is provided.) Default NORMAL Function When the power is ON, the input source or channel to start is set.

In the NORMAL mode, it follows the contents of Last_Memory. Remarks • When set to a mode other than “NORMAL”,

a) It is inhibited to display the Channel Setting MENU and to set the Channel. b) On start with “ON_TIMER”, the set Channel of ON_TIMER is prior.

• When set to “NORMAL”, “Mode Fixed (START MODE FIXED)” is set to “VARIABLE” to inhibit the selection.

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10)Mode Fixed [INPUT MODE FIXED]

9. Video signal adjustment procedure

* The adjustment process mode menu is listed in Section 4.

Signal generator level adjustment check (Adjustment to the specified level)

1. Entering the adjustment process mode

Enter the adjustment process mode according to Section 2.

2. RF AGC adjustment

3. PAL signal & tuner adjustment

Selection “VARIABLE” or “FIXED” is selectable. (Loop is provided.) Default VARIABLE Function When set to “FIXED”, it is disable to switch to other channel or input after start in the set value of “Start Mode (INPUT

MODE START)”. Keys disabled when not set to Default (Example)

Channel UP/Down, Direct, Channel Button, FLASHBACK, INPUT, STILL, Digit Select and Direct input switching

Remarks • When “START MODE” is set to “NORMAL”, this item is disable to set. (Automatically set to “VARIABLE”.)

• When set to “FIXED”, The Channel setting MENU (Menu-setup-Auto Installation, Programme setup and Child Lock item hatching) and Input Selection MENU in MENU are not displayed.

• Composite signal PAL : 0.7Vp-p ± 0.02Vp-p (Pedestal to white level)

• RGB signal : 0.7Vp-p ± 0.02Vp-p

• 15K component signal (50 Hz) : Y level : 0.7Vp-p ± 0.02Vp-p (Pedestal to white level) : PB, PR level : 0.7Vp-p ± 0.02Vp-p

Adjustment point Adjustment Conditions Adjustment procedure

1 Setting [Signal]

PAL Split Field Colour Bar RF signal U/V

[Terminal] TUNER

• Feed the PAL Split Field colour bar signal (E-12ch) to TUNER. Signal level: 55 dB µV ± 1dB (75Ω LOAD)

2 Auto adjustment

performance

Page 3/33 Bring the cursor on [RF AGC ADJ] and press [OK] [RF AGC ADJ OK] appears

when finished.

Adjustment point Adjustment Conditions Adjustment procedure

1 Setting [Signal]

PAL Full Field Color Bar Composite or RF signal

[Terminal] EXT1 SCART IN TUNER

• Feed the PAL full field colour bar signal (75% colour saturation) to EXT1 SCART IN.

• Feed the RF signal (PAL colour bar) to TUNER.

• Make sure the PAL colour bar pattern has the sync level of 7:3 with the picture level.

2 Auto adjustment

performance

Page 3/33 Bring the cursor on [PAL+TUNER ADJ] and press [OK] [PAL+TUNER ADJ OK]

appears when finished.

[E-12CH]

㸡100% white

㪲VIDEO IN SIGNAL]

㸡100% white

[RF Signal]

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4. SECAM adjustment

5. ADC adjustment (Component 15K)

6. ADC adjustment (Component 33K)

Adjustment point Adjustment Conditions Adjustment procedure

1 Setting [Signal]

SECAM Full Field Colour Bar signal

[Terminal] EXT1 SCART IN

• Feed the SECAM full field colour bar signal (75% colour saturation) to EXT1 SCART IN.

2 Auto adjustment

performance

Page 4/33 Bring the cursor on [SECAM ADJ] and press [OK] [SECAM ADJ OK] appears

when finished.

Adjustment point Adjustment Conditions Adjustment procedure

1 Setting [Signal]

COMP15K, 50Hz 100% Full Field Colour Bar signal

[Terminal] EXT8 COMPONENT IN

• Feed the COMPONENT 15K 100% full field colour bar signal (100% colour saturation) to EXT8 COMPONENT IN.

2 Auto adjustment

performance

Page 6/33 Bring the cursor on [COMP15k ALL ADJ] and press [OK] [COMP15k ALL ADJ

OK] appears when finished.

Adjustment point Adjustment Conditions Adjustment procedure

1 Setting [Signal]

COMP33K, 50Hz 100% Full Field Colour Bar signal

[Terminal] EXT8 COMPONENT IN

• Feed the COMPONENT 33K 100% full field colour bar signal (100% colour saturation) to EXT8 COMPONENT IN.

2 Auto adjustment

performance

Page 7/33 Bring the cursor on [HDTV ADJ] and press [OK] [HDTV ADJ OK] appears when

finished.

100% white

Black

100% white

Black

100% white

Black

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7. DVI-I adjustment (ANALOG D-sub15PIN)

8. RGB adjustment (SCART)

10. White Balance Adjustment

Adjustment gradation values (IN) appear on page 12/33 of process adjustment, and adjustment initial values (offset value) appear on pages 13/33 and 14/33.

For white balance adjustment, adjust the offset values on pages 13/33 and 14/33.

[Condition of the unit for inspection]: Modulated light: MAX (+8)

[Adjustment reference device] : Minolta CA-210

[Adjustment]

Check that the values on page 12/33 of process adjustment are set as below. If not, change them accordingly.

1) Display the current adjustment status at point 6. (Page 12/33 of process adjustment)

The display for checking the adjustment status is toggled by pressing the “6” button on the remote control.

(Normal OSD display → “6” → display for check (OSD disappears) → “6” → normal OSD display → . . . )

2) Read the value of the luminance meter. x=0.272, y =0.277

3) Change MG6R/MG6B (Adjustment offset value) on page 14/33 of process adjustment so that the values of the luminance meter approach x=0.272 and y =0.277.

(Basically, G is not changed. If adjustment fails with R and B, change G. When G is lowered, the weaker of R and B must be fixed.)

4) Display the adjustment status of the current point 5. (Each time the “5” button on the remote control is pressed, the adjustment status check display is toggled.)

(Normal OSD display → “5” → Check display (OSD disappears) → “5” → Normal OSD display → . . . )

Change MG5R/MG5B (adjustment offset value) on page 14/33 of process adjustment so that the values of the luminance meter approach x =

0.272 and y = 0.277.

Adjustment point Adjustment Conditions Adjustment procedure

1 Setting [Signal]

XGA 60Hz 100% Full Field Colour Bar signal

[Terminal] EXT7 PC IN

• Feed the XGA 60Hz 100% full field colour bar signal (100% colour saturation) to EXT7 PC IN.

2 Auto adjustment

performance

Page 8/33 Bring the cursor on [ANALOG PC ADJ] and press [OK] [ANALOG PC ADJ OK]

appears when finished.

Adjustment point Adjustment Conditions Adjustment procedure

1 Setting [Signal]

RGB15K, 50Hz 100% Full Field Colour Bar signal

[Terminal] EXT1 SCART IN

• Feed the RGB15k 50Hz 100% full field colour bar signal (100% colour saturation) to EXT1 SCART IN.

2 Auto adjustment

performance

Page 9/33 Bring the cursor on [SCART RGB ADJ] and press [OK] [SCART RGB ADJ OK]

appears when finished.

Point 1 (LEV1) 176 Point 2 (LEV2) 352 Point 3 (LEV3) 528 Point 4 (LEV4) 656 Point 5 (LEV5) 800 Point 6 (LEV6) 928

100% white

Black

100% white

Black

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5) Repeat step 4) for points 4, 3, 2, and 1.

[Adjustment reference standard value]

Adjustment spec ± 0.002 Inspection spec ± 0.004 (point 1 and 2)

Adjustment spec ± 0.001 Inspection spec ± 0.002 (Excluding the above-mentioned)

* Adjusting procedure by use of [RS-232C]

1. Get ready the PC with COM port (RS-232C) running on Windows 95/98/ME/2000/XP operating system, as well as the RS-232C cross cable.

2. Start the unit with the RS-232C cable connected.

3. Start the terminal software. (The freeware readily available on the Internet will do.)

4. Make the following settings.

5. If the settings are correct, the terminal software indicates “ERR” against pressing of the “ENTER” key.

6. After the settings are done correctly, it is possible to make an adjustment by typing in the command shown in the table below and pressing the “ENTER” key on the keyboard.

7. Command entry is successful if the terminal software indicates “OK” when the “ENTER” is pressed. If “ERR” is shown, retry to enter the command.

8. Send the process mode switching command to switch from the RS232C operation mode to the process mode.

KRSW0001: “ERR” is returned.

KKT10037: When “OK” is returned, the process mode becomes active. When “ERR”, start over from KRSW0001.

9. Send each adjustment command.

RS-232C command list

Baud rate 9,600 bps Data LENGTH 8 bit Parity bit None Stop bit 1 bit Flow control None

Command Function Remarks

KYOF0000 Remote control disabled OSDS0001 OSD display inhibited SBSL0016 Light control level MAX MSET0001 Background adjustment start MSET0004 Initialization of adjustment value LEV60928 Graduation 6 (928-graduation adjustment) MG6G **** Adjustment of G of graduation 6 0000 ~ 4095 MG6R **** Adjustment of R of graduation 6 0000 ~ 4095 MG6B **** Adjustment of B of graduation 6 0000 ~ 4095 LEV50800 Graduation 5 (800-graduation adjustment) MG5G **** Adjustment of G of graduation 5 Calculated value MG5R **** Adjustment of R of graduation 5 0000 ~ 4095 MG5B **** Adjustment of B of graduation 5 0000 ~ 4095 LEV40656 Graduation 4 (656-graduation adjustment) MG4G **** Adjustment of G of graduation 4 Calculated value MG4R **** Adjustment of R of graduation 4 0000 ~ 4095 MG4B **** Adjustment of B of graduation 4 0000 ~ 4095 LEV30528 Graduation 3 (528-graduation adjustment) MG3G **** Adjustment of G of graduation 3 Calculated value MG3R **** Adjustment of R of graduation 3 0000 ~ 4095 MG3B **** Adjustment of B of graduation 3 0000 ~ 4095 LEV20352 Graduation 2 (352-graduation adjustment) MG2G **** Adjustment of G of graduation 2 Calculated value MG2R **** Adjustment of R of graduation 2 0000 ~ 4095 MG2B **** Adjustment of B of graduation 2 0000 ~ 4095 LEV10184 Graduation 1 (176-graduation adjustment) MG1G **** Adjustment of G of graduation 1 Calculated value MG1R **** Adjustment of R of graduation 1 0000 ~ 4095 MG1B **** Adjustment of B of graduation 1 0000 ~ 4095 MSET0003 Writing of adjustment value

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11. Confirmation item

1. Magi-Link Inspection

The thing that the Magi-Link circuit operates is confirmed.

2. HDMI-CEC Inspection

The thing that the HDMI-CEC circuit operates is confirmed.

12. Initialization to factory settings

13. Upgrading the software

1. Turn off the AC power (Unplug the AC power cord).

2. Insert the upgrading USB flash memory for upgrade into the service slot.

3. While holding down the power button, plug in the AC power cord of the main unit to turn on the power.

4. Upgrade begins automatically.

After the set starts, the upgrade screen like the figure below is displayed.

CAUTION: When the factory settings have been made, all user setting data, including the channel settings, are initialized.

(The adjustments done in the adjustment process mode are not initialized.) Keep this in mind when initializing these settings.

Adjustment item Adjustment conditions Adjustment procedure

1 Factory settings ends by turning off the

MAIN POWER key. (See to below caution)

[Factory setting with adjustment process mode]

• Enter the adjustment process mode.

• Move the cursor to [INDUSTRY INIT] on page 2/33.

• Use the R/C key to select a region from [EUROPE/RUSSIA/SWEDEN] and press the [OK] key.

• “EXECUTING” display appears.

• After a while, “SUCCESS” display appears, the setting is completed.

When succeeding: Background color (green) When failing: Background color (red) The following items are initialized in the factory setting.

1) User settings

2) Channel data (e.g. broadcast frequencies)

3) Maker option setting

4) Password data

After adjustments, exit the adjustment process mode. To exit the adjustment process mode, turn off the MAIN power key. When the power is turned off with the remote control, unplug the AC power cord and plug it back in.

System Version: E0708021

BANK 1

BANK 2

STATUS UPDATING. . .

30%

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5. If any of the procedures fails, the following upgrade failure screen shows up. For the failing procedure, the “NG” marking turns red.

NOTE: In such case, try to upgrade the software again. If it still fails, the hardware may be in trouble.

6. When all the procedures are complete, the following upgrade success screen shows up. The new software version can be confirmed on screen. The version number appears when each item has been successfully upgraded. Finally the main version number appears on screen.

7. Turn off the AC power (Unplug the AC power cord). Take out the upgrading USB flash memory.

8. Now the software has been upgraded.

NOTE: Then get the set started and call the process adjustment screen 1/33 to check the main software version.

CAUTION

1) Do not take out and put in the USB flash memory during formatting.

2) It takes about one minute to the rewriting completion.

Please confirm the upgrade status on the screen becomes 100%.

System Version: E0708021

BANK 1

BANK 2

STATUS UPDATING. . .

100%

44%

System Version: E0708021

BANK 1

BANK 2

STATUS

UPGRADE COMPLETE

100%

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LC46X8E

Service Manual

CHAPTER 4. TROUBLESHOOTING TABLE

[1] TROUBLESHOOTING TABLE

Power unit operation check.

Are the power cord and harness in the unit properly connected? NO Connect the power cord and harness properly, and turn on the

power.

LINE_FILTER_UNIT: YES Is F7000 normal?

LINE_FILTER_UNIT: Isn't FL7001, L7001, R7002, CX7000-1, Z7000, etc. out of order? Moreover, whether the short-circuit with the circumference circuit is checked. POWER_UNIT: BD7000, TH7000-1, IC7801,Z7800, etc. out of order? Moreover, whether the short-circuit with the circumference circuit is checked.

POWER_UNIT YES Is B_BUS (+320V) output? (Set the main power SW to OFF.)

* When power on/off switch is on • • • About +400V

NO Does the PFC circuit operate normally?

(L7800, L7801, T7800, D7806, Q7804-5, IC7800-1 and etc. And, the circuit around the protection circuit etc. is checked.)

YES

Is a voltage of BU5V applied to pin (8) of connector (PD)? (Set the main power SW to OFF.)

NO Does the switching circuit operate normally?

Check circuit around the primary side (T7901, IC7905, Q7902, Q7912-3, D7908-9, D7904, D7910, etc.), the secondary side (D7918, L7900, etc.), the AC_DET circuit (D7911-2, IC7909, IC7902, Q7910, Q7901, etc.), and the protection circuit.

YES Are INV60V, UR15, and S15V output as for the power on/off switch when it is on?

NO Does the inverter circuit operate normally?

Check circuit around the primary side (T7001, T7601, IC7603, IC7601, IC7600, Q7600-2, D7608, D7610, D7613, etc.), the secondary side (D7560-3, L7560, D7150-1, L7150, L7152, Q7911, etc.), the PS_ON circuit (Q7300-1, etc.), and the protection circuit.

YES Similarly, is PNL12V output as for the power on/off switch when it is on?

NO Check PNL_POW circuit of Q7121-2, etc. and the circuit around

the regulator circuit etc. of IC7121, L7121, D7121, etc.

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The sound is not emitted from the speaker though the picture has come out.

No sound output in all modes.

TERMINAL UNIT: Is the audio signal (L/R) output from pins (38, 39) of IC1404 (CODEC) normal?

NO Check IC1404 and its peripheral circuits.

YES Is audio signal (L/R) input to pin (5, 9) of IC1301 (AMP)? NO Check the line between IC1404 and IC1301.

YES Is MUTE circuit [SP_MUTE_LINE, S_STBY_LINE] normal? NO This signal is usually “L”.

Check the SP_MUTE_LINE and S_STBY_LINE. (Q1302, etc.)

YES Is the audio signal (L/R) output from pins (1, 2) and pins (3, 4) of P1301 (AOUDIO-CONNECTOR) normal?

NO Check IC1301 and its peripheral circuits.

YES Check Speaker Box (right and left) and wire harness.

No sound (during the reception of TV(ANALOG) broadcasting)

The sound does not come out though the picture come out when UHF\VHF is received.

TERMINAL UNIT: Is the IF signal output from pin (17) of TUNER (TU7501)? NO Check the tuner and its peripheral circuits.

Replace as required.

YES Is the SIF signal sent to pins (23) and (24) of IC7504 (IFDE-

MOD)?

NO Check FL7501 and its peripheral circuits.

YES Is the SIF signal input from pin (12) of IC7504 to pin (3) of IC1402 (SOUND MULTIPLEX DECODER)?

NO Check the line between IC7504 and IC1402.

(Q7504, etc.)

YES Is audio signal (L/R) input from pin (24, 22) of IC1402 to pin (61,

62) of IC1404 (CODEC)?

NO Check the line between IC1402 and IC1404.

YES Refer to “No sound output in all modes”.

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No sound (during the reception of TV (DIGITAL) broadcasting)

The sound does not come out though the picture come out when DTV is received?

MAIN UNIT: Is DTV_SPDIF audio signal output from pin (T2) of IC8101 (CPU/ DECODER) to pin (42) of connector SC1101?

NO Check the line between IC8101 and SC1101, and their peripheral

circuits.

TERMINAL UNIT: YES Is DTV_SPDIF audio signal input from pin(42) of connector

SC501 to pin(4) of IC1404(CODEC)?

NO Check the line between SC501 and IC1404.

(SC1101/SC501, etc.)

YES Refer to “No sound output in all modes”.

No sound from external input devices (1)

The audio input from EXT-1 doesn’t come out. The audio input from EXT-2 doesn’t come out.

TERMINAL UNIT: EXT1 Is the audio signal (IN1_L/IN1_R) properly sent to pins (6, 2) of SCART1 (SC502)?

NO Check the setting of an external input device that connects of

SC502.

EXT2 Is the audio signal (IN2_L/IN2_R) properly sent to pins (6, 2) of SCART2 (SC503)?

NO Check the setting of an external input device that connects of

SC503.

YES EXT1 Is the audio signal (IN1_L/IN1_R) properly sent to pins (51, 52) of IC1404 (CODEC)?

NO Check the line between SC502 and IC1404.

EXT2 Is the audio signal (IN2_L/IN2_R) properly sent to pins (53, 54) of IC1404 (CODEC)?

NO Check the line between SC503 and IC1404.

YES Refer to “No sound output in all modes”.

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No sound from external input devices (2)

The sound input from EXT3 doesn’t come out.

MINI AV_UNIT: Is audio signal (IN3_L/R) input from pins (5, 4) of EXT3 terminal (J901) to pins (3, 1) of connector (P901)?

NO Check connection of between from J901 to P901 and the exter-

nal input device.

TERMINAL UNIT: YES Is audio signal (IN_3_L/IN_3_R) input to pins (3, 1) of connector

(P501)?

NO Check the connector (P901/P501).

YES Is audio signal (IN3_L/IN_3_R) input to pins (55, 56) of IC1404 (CODEC)?

NO Check the line between P501 and IC1404.

YES Refer to “No sound output in all modes”.

No sound from external input devices (3)

The audio input from EXT4/5/6 (HDMI) doesn’t come out.

Is the picture of the signal input from EXT4/5/6 displayed? NO Check the connection of EXT4/5/6 and an external device.

MAIN UNIT: YES Is the HDMI_SPDIF audio signal output from pin (W12) of IC3301 (VIDEO PROCESSOR) to pin (44) of connector (SC1101)?

NO Check the line between IC3301 and SC1101, and their peripheral

circuits.

TERMINAL UNIT: YES Is HDMI_SPDIF audio signal input from pin (44) of connector

(SC501) to pin (5) of IC1404 (CODEC)?

NO Check the line between SC501 and IC1404.

(SC1101/SC501, etc.)

YES Refer to “No sound output in all modes”.

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No sound from external input devices (4)

The sound input from EXT6 (analog HDMI) doesn’t come out. The sound input from EXT7 (analog RGB audio) doesn’t come

out.

MAIN UnIT:

Check whether “Analog” has selected in MENU-Option -HDMI Audio Select.

MAIN UNIT: YES

Is audio signal (L/R) sent from pins (2, 3) of EXT6 terminal (J1502) to pins (1, 6) of IC1504 (SW)?

YES Is audio signal (L/R) sent from pins (2, 3) of EXT7 terminal

(J1501) to pins (3, 7) of IC1504 (SW)?

NO NO Check the J502 (EXT6), peripheral circuit and connection of external input devices.

Check the J501 (EXT7), peripheral circuit and connection of external input devices.

Is audio signal (HDMI_PC_L/HDMI_PC_R) output from pins (15, 11) of IC1504 to pins (24, 26) of connector (SC1101)?

TERMINAL UNIT: YES

NO Check the line between IC1504 and SC1101, and their peripheral circuits.

Is audio signal (HDMI_PC_L=MAIN_L, HDMI_PC_R=MAIN_R) sent to pins (24) and (26) of SC501?

NO Check the connector (SC1101/SC501)

YES Is audio signal (MAIN_L/MAIN_R) input to pins (59, 60) of IC1404 (CODEC)?

NO Check the line between SC501 and IC1404.

YES Refer to “No sound output in all modes”.

No sound from external input devices (5)

The sound input from EXT8 doesn’t come out.

TERMINAL UNIT: Is audio signal (IN4_L/IN4_R) input from pins (2, 4) of the EXT8

terminal (J502)?

NO Check the connection to J502 and external devices.

YES Is audio signal (IN4_L/IN4_R) input to pins (57, 58) of IC1404 (CODEC)?

NO Check the line between J502 and IC1404.

YES Refer to “No sound output in all modes”.

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The audio signal is not output (1)

The audio signal of UHF/VHF and DTV is not output from EXT1 (SCART1).

TERMINAL UNIT: Is audio signal (L/R) output from pins (3, 1) of SCART1 (SC502)? YES Check the connection to SCART1 and external devices.

Is S-MUTE signal [MAIN_UNIT pin (93) of IC9101 (CPLD)] at H? YES This signal should be “L”.

Check the peripheral circuits of IC9101 and S-MUTE signal. (Q502, Q504, etc.)

Is audio signal (L/R) output from pins (24, 22) of IC1402 (SOUND MULTIPLEX DECODER)?

YES Check the line between SC502 and IC1402.

(Q508, Q507, IC1407, etc.)

Check IC1402 and its peripheral circuits.

The audio signal is not output (2)

The audio signal of UHF/VHF and DTV is not output from EXT2 (SCART2).

TERMINAL UNIT: Is audio signal (L/R) output from pins (3, 1) of SCART2 (SC503)? YES Check the connection to SCART2 and external devices.

NO Is S2-MUTE signal [MAIN_UNIT pin (91) of IC9101 (CPLD)] at H?

YES This signal should be “L”.

Check the peripheral circuits of IC9101 and S2-MUTE signal. (Q501, Q503, etc.)

NO Is audio signal (L/R) output from pins (3, 13) of IC7510 (SW)? YES Check the line between IC7510 and SC503.

(Q506, Q505, etc.)

NO Is audio signal (L/R) input to pins (2, 15) of IC7510 (SW)? YES Check IC7510 or peripheral circuits.

(SC_AUD_SEL signal, etc.)

NO Is audio signal (L/R) output from pins (24, 22) of IC1402 (SOUND MULTIPLEX DECODER)?

YES Check the line between IC7510 and IC1402.

(IC1407, etc.)

NO Check IC1402 and its peripheral circuits.

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The audio signal is not output (3)

The audio signal of MONITOR is not output from EXT2 (SCART2).

TERMINAL UNIT: Is audio signal (L/R) sent to pins (3, 1) of SCART2 (SC503)? YES Check the connection to SCART2 and external devices.

NO Is S2-MUTE signal [MAIN_UNIT pin (91) of IC9101 (CPLD)] at

YES Check the peripheral circuits of IC9101 and S2-MUTE signal.

(Q501, Q503, etc.)

NO Is audio signal (L/R) sent to pins (3, 13) of IC7510 (SW)? YES Check the line between IC7510 and SC503.

(Q506, Q505, etc.)

NO Is audio signal (L/R) input to pins (1, 12) of IC7510 (SW)? YES Check IC7510 or peripheral circuits.

(SC_AUD_SEL signal, etc.)

NO Is audio signal (L/R) output from pins (40, 41) of IC1404 (CODEC)?

YES Check the line between IC7510 and IC1404.

(IC1405, etc.)

NO Check IC1404 and its peripheral circuits.

The audio signal is not output (4)

No audio signal output from AUDIO_OUTPUT terminal.

TERMINAL UNIT: Is audio signal (L/R) output from pins (2, 4) of audio output terminal (J503)?

YES Check the connection to J503 and external devices.

NO MONITOR_MUTE signal [pin (72) of IC506

(VIDEO_SELECTOR)] or MUTE-A_ALL signal [pin (55) of IC2002 (UCON)] will be “H”?

YES This signal should be “L”.

Check IC506, IC2002, and its peripheral circuits.

NO Is the audio signal (L/R) output from pins (40, 41) of IC1404

(CODEC)?

YES Check the line between IC1404 and J503.

(IC1405, Q509, Q510, etc.)

NO Check IC1404 and its peripheral circuits.

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The audio signal is not output (5)

No audio signal output from DIGITAL_AUDIO_OUTPUT terminal.

TERMINAL UNIT: Is digital audio signal (OPT_OUT) output to pin (1) of optical fiber transmitter (D501)?

YES Check D501 or peripheral circuits.

(B3.3V_LINE, etc.)

NO SPDIF_MUTE signal [pin (92) of IC9101 (CPLD)] or MUTE-

A_ALL signal [pin (55) of IC2002 (UCON)] will be “H”?

YES This signal should be “L”.

Check IC9101, IC2002, and its peripheral circuits.

NO Is digital audio signal (OPT_OUT) output from pin (23) of IC1404 (CODEC) to pin (2) of IC502 (AND GATE)?

YES Check IC502 or peripheral circuits.

NO Check IC1404 and its peripheral circuits.

The audio signal is not output (6)

No sound from HEADPHONE_OUTPUT terminal.

MINI AV_UNIT: When headphone is connected, does the HP_PLUG signal of the

pin (6) become “H” (about 3.3V) from “L” (0V).

NO Check the line between J802 and IC9101.

(P801/P1101, IC9105, etc.)

YES Is the audio signal (HP_L/HP_R) output to pins (2, 3) of headphone terminal J802?

YES Check HEAD-PHONE (J802) or peripheral circuits.

MAIN UNIT: NO Is the audio output signal (HP_LOUT/HP_ROUT) send from pins (68, 70) of connector (SC1101) to pins (5, 7) of connector (P801/

P1101)?

YES Check the line between P1101 and J802.

(P801/P1101, etc.)

TERMINAL UNIT: NO Is audio output signal (HP_LOUT/HP_ROUT) sent to pins (68,

70) of connector (SC501)?

YES Check the connector SC501/SC1101.

NO Is audio output signal (HP_LOUT/HP_ROUT) output from pins

(36, 35) of IC1404 (CODEC)?

YES Check the connector SC501/SC1101.

NO Check whether the HP_MUTE signal is “H” [pin (86) of IC9101 (CPLD)]. This signal should be “L”.

YES Check Q1401, Q1402 or peripheral circuits.

NO Check IC1404 (CODEC) or peripheral circuits.

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No picture on the display (1)

The picture doesn't appear in all modes.

MAIN UNIT: Is LVDS signal output from 1st_channel and 2nd_channel of IC3301(VIDEO PROCESSER) in each mode? TA1 ± (A14/B14), TB1± (A15/B15), TC1± (A16/B16), TD1± (A18/B18), TE1± (A19/B19), TCLK1± (A17/B17), TA2± (A20/B20), TB2± (C20/D19),

TC2± (D20/E19), TD2± (F20/G19), TE2± (G20/H19), TCLK2± (E20/F19)

YES

NO Check IC3301 and its peripheral control circuits. (IC2002 (UCON), IC8101 (DECODER), IC3501 (SRAM), IC3502 (SRAM), etc.)

Is the above-mentioned LVDS signal output to connector (P2601)?

NO Check the line between IC3301 and P2601.

YES Is LCD controller's control signal normal? NO Check control signal line.

(R/L, U/D, TEMP1/2/3, DET_PNL12V, ROMSEL0/1)

LCD_CONT_UNIT: YES Similarly, is the LVDS signal input to the connector (CN4804) of LCD_CONT_UNIT?

NO Check wire harness (LW).

YES

Check the LCD_CONT_UNIT.

No picture on the display (2)

The picture doesn’t come out when VHF/UHF is received.

TERMINAL UNIT: Is IF signal output from pin (17) of TUNER (TU7501)? NO Check whether I2C signal is normally accessed between TU7501

and IC7507 (COFDM).

YES

Is IF signal input to pin (1) and (2) of IC7504 (IF-DEMO)? NO Check the FL7502 (VIF_SAW) and their peripheral circuits.

YES Is video signal (TUNER_CVBS) input from pin (17) of IC7504 to pin (9) of IC506 (VIDEO_SELECTOR)?

NO Check the line between IC7504 and IC506.

(Q7505, IC7508, etc.)

YES Is CVBS signal (MAIN_Y/V) output from pin (52) of IC506 to pin

(2) of connector SC501?

NO Check the line between IC506 and SC501.

MAIN UNIT: YES Is CVBS signal (MAIN_Y/V) input to pin (2) of connector SC1101?

NO Check the connector SC501/SC1101.

YES Is CVBS signal (MAIN_Y/V) input to pin (Y4) of IC3301 (VIDEO_PROCESSOR)?

NO Check the line between SC1101 and IC3301.

YES Refer to “The picture doesn't appear in all modes.”

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No picture on the display (3)

The picture doesn’t come out when DTV is received.

TERMINAL UNIT: Is the regulated power supplied to TUNER (5V/5VCONT) and IC7507 (B3.3V/B1.8V)?

NO Each power supply circuit is checked.

YES Is IF signal output from pins (20, 21) of TUNER (TU7501) to pins

(30, 31) of IC7507 (COFDM)?

NO Check the tuner, IC7507 and their peripheral circuits.

Replace as required.

TERMINAL UNIT: YES Does serial control signal (SDA/SCL) operate with pins (15, 14) of TUNER and pins (5, 4) of IC7507?

YES Does X7502 (20.48MHz) of IC7507 oscillate? NO Check X7502 and its peripheral circuits.

YES Is MPEG data (FECLK/FED_D/FESTR_PSYNC/FEVAL_DEN) from IC7507 output to pins (1, 3) of connector (P7501) and pins (51, 50) of connector (SC501)?

NO Is the control signal named IC7507 and IC9101 (CPLD) normal?

(FE_RST_LINE, FEERR_LINE, FEPG0_COMP_LINE, FEPG1_LOCK_LINE, etc.)

MAIN UNIT: YES Is the digital signal (FECLK/FED_D/FESTR_PSYNC/

FEVAL_DEN) sent to pins (1, 3) of connector (P1103) and pins (51, 50) of connector (SC1101)?

NO Check connector (SC501/SC1101 and P7501/P1103).

YES Is the digital signal (FECLK/FED_D/FESTR_PSYNC/ FEVAL_DEN) input to pins (AF3, AF2, AF4, AH3) of IC8101

(CPU/DECODER)?

NO Check the line between SC1101,P1103 and IC8101.

YES Does X8101 (24.00MHz)/X8102 (32.768kMHz) of IC8101 oscillate?

NO Check the X8101/ X8102 and their peripheral circuits.

YES Are video signal (VDB_R [0:9], VDB_G [0:9], VDB_B [0:9], and VBD_CLK/DE/HD/VD) are output from IC8101 to IC3301 (VIDEO

PROCESSOR)?

NO Check IC8101, IC3301 and their peripheral circuits.

(IC8301-IC8304 (DDR2_SDRAM), etc.)

YES Refer to “The picture doesn't appear in all modes.”

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<External input EXT1, EXT2> No picture on the display (4)

The CVBS video signal input from EXT1 doesn’t come out in the display. The CVBS video signal input from EXT2 doesn’t come out in the display.

TERMINAL UNIT: <EXT1> Is CVBS signal sent to pin (20) of SCART1 (SC502)?

NO Check the setting of an external input device that connects of

SC502.

<EXT2> Is CVBS signal sent to pin (20) of SCART2 (SC503)?

NO Check the setting of an external input device that connects of

SC503.

YES <EXT1> Is CVBS signal sent to pin (65) of IC506?

NO Check the line between SCART1 (SC502) and IC506.

<EXT2> Is CVBS signal sent to pin (71) of IC506?

NO Check the line between SCART2 (SC503) and IC506.

YES Is CVBS signal (MAIN_Y/V) output from pin (52) of IC506 to pin

(2) of connector (SC501)?

NO Check the line between IC506 and SC501.

MAIN UNIT: YES Is CVBS signal (MAIN_Y/V) input to pin (2) of connector SC1101?

NO Check the connector SC501/SC1101.

YES Is CVBS signal (MAIN_Y/V) input to pins (Y4) of IC3301 (VIDEO_PROCESSOR)?

NO Check the line between SC1101 and IC3301.

YES Refer to “The picture doesn't appear in all modes.”

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<External input EXT1, EXT2> No picture on the display (5)

The R/G/B video signal input from EXT1 doesn’t come out in the display. The R/G/B video signal input from EXT2 doesn’t come out in the display.

TERMINAL UNIT: <EXT1> Is RGB signal (R1/G1/B1) sent to pins (15, 11, 7) of SCART1 (SC502)?

NO Check the setting of an external input device that connects of

SC502.

<EXT2> Is RGB signal (R2/G2/B2) sent to pins (15, 11, 7) of SCART2 (SC503)?

NO Check the setting of an external input device that connects of

SC503.

YES <EXT1> Is RGB signal (R1/G1/B1) sent to pins (25, 21, 23) of IC506 (V_SELECTOR)?

NO Check the line between SC502 and IC506.

<EXT2> Is RGB signal (R2/G2/B2) sent to pins (31, 27, 29) of IC506 (V_SELECTOR)?

NO Check the line between SC503 and IC506.

YES Is RGB signal output from pin (54, 56, 55) of IC506 to pins (12, 14, 16) of connector (SC501)?

NO Check the line between IC506 and SC501.

MAIN UNIT: YES Is RGB signal sent to pins (12, 14, 16) of connector (SC1101)? NO Check the connector (SC501/SC1101)

YES Is RGB signal sent to pins (Y8, V6, W9) of IC3301 (VIDEO_PROCESSOR)?

NO Check the line between SC1101 and IC3301.

(Q1104, Q1105, Q1106, etc.)

YES Refer to “The picture doesn't appear in all modes.”

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<External input EXT1, EXT2> No picture on the display (6)

The Y/C video signal input from EXT1 doesn’t come out in the display. The Y/C video signal input from EXT2 doesn’t come out in the display.

TERMINAL UNIT: <EXT1> Is Y/C video signal sent to pins (20, 15) of SCART1 (SC502)?

NO Check the setting of an external input device that connects of

SC502.

<EXT2> Is Y/C video signal sent to pins (20, 15) of SCART2 (SC503)?

NO Check the setting of an external input device that connects of

SC503.

YES <EXT1> Is Y/C signal sent to pins (67, 69) of IC506?

NO Check the line between SC502 and IC506.

<EXT2> Is Y/C signal sent to pins (73, 75) of IC506?

NO Check the line between SC503 and IC506.

YES Is Y/C signal output from pins (52, 50) of IC506 to pins (2, 4) of

connector (SC501)?

NO Check the line between IC506 and SC501.

MAIN UNIT: YES Is Y/C signal sent to pins (2, 4) of connector (SC1101)? NO Check the connector (SC501/SC1101)

YES Is Y/C signal sent to pins (Y4, V9) of IC3301 (VIDEO_PROCESSOR)?

NO Check the line between SC1101 and IC3301.

YES Refer to “The picture doesn't appear in all modes.”

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<When EXT3 is used for external input> No picture on the display (7)

The picture video signal (CVBS) input from EXT3 doesn’t come out in the display.

MINI AV UNIT: Is the CVBS signal input from pin (6) of EXT3 terminal (J901) to pin (5) of connector (P901)?

NO Check the line between J901 and P901.

TERMINAL UNIT: YES Is the CVBS signal input from pin (5) of connector (P501) to pin

(3) of IC506 (VIDEO SELECTOR)?

NO Check the line between P501 and IC506.

(Connector P901/P501, etc.)

YES Is the V3_PLUG signal (pin (7)) for connection detection of EXT3 terminal (J901) normal? (When connecting terminal: 7V, When opening: 0V)

NO Check J901, pin (2) of IC506 or peripheral circuits.

YES Is video signal (MAIN_Y/V) output from pin (52) of IC506 to pin (2) of connector (SC501)?

NO Check the line between IC506 and SC501.

MAIN UNIT: YES Is video signal (MAIN_Y/V) input to pin (2) of connector SC1101? NO Check the connector (SC501/SC1101)

YES Is video signal (MAIN_Y/V) input to pin (Y4) of IC3301

(VIDEO_PROCESSOR)?

NO Check the line between SC1101 and IC3301.

YES Refer to “The picture doesn't appear in all modes.”

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<When EXT3 is used for external input> No picture on the display (8)

The Y/C video signal input from EXT3 doesn’t come out in the display

MINI AV_UNIT: Is Y/C signal output from pins (3, 4) of J902 (Y/C TERMINAL) to pins (13, 11) of connector (P901)?

NO Check the line between J901 and P901.

TERMINAL UNIT: YES Is Y/C signal output from pins (13, 11) of connector (P501) to

pins (5, 7) of IC506 (VIDEO SELECTOR)?

NO Check the line between P501 and IC506.

(Connector P901/P501, etc.)

YES Is the S3_PLUG signal (pin (6)) for connection detection of Y/C terminal (J902) normal? (When connecting terminal: 7V, When opening: 0V)

NO Check J902, pin (42) of IC506 or peripheral circuits.

YES Is Y/C signal output from pins (52, 50) of IC506 to pins (2, 4) of connector (SC501)?

NO Check the line between IC506 and SC501.

MAIN UNIT: YES Is Y/C signal input to pin (2, 4) of connector SC1101? NO Check the connector (SC501/SC1101)

YES Is Y/C signal input to pin (Y4, V9) of IC3301

(VIDEO_PROCESSOR)?

NO Check the line between SC1101 and IC3301.

YES Refer to “The picture doesn’t appear in all modes.”

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<When EXT4 is used for external input> No picture on the display (9)

The HDMI signal input from EXT4 doesn’t come out in the display.

MINI AV_UNIT: Is the HOT_PLUG detection signal input to pin (19) of the HDMI terminal (SC801) normal?

Is the HOT_PLUG output signal input from pin (18) of HDMI terminal (SC801) to pin (51) of IC803?

NO Check the between pin (25) of IC803 (HDMI_BUFFER) and pin

(19) of SC801. (IC807, etc.)

YES

Check the connection and setup with the external HDMI devices.

Is EDID data accessed from pins (5, 6) of IC802 (EEPROM), and is it read from pin (15, 16) of a HDMI terminal (SC801)?

NO Is access possible in the re-writing or exchange of EDID data of

IC802?

YES

Check SC801, IC802, IC803 and peripheral circuits.

Is TMDS signal (RXC± - RX2±) input from EXT4 terminal (SC801) to the pins (28/27-35/34) of IC803 (HDMI)?

NO Check the line between SC801 and IC803.

YES Is TMDS signal (TXC± - TX2±) input from the pins (9-1) of IC803 (HDMI) to pins (12-2) of connector (SC802)?

NO Check the line between IC803 and SC802.

YES Is TMDS signal (TMDS6_D0-D2) input into pins (61-68) of

IC1507 (HDMI_SW)?

NO Check the line between connector (SC802) and IC1507.

(SC802, SC1503 and Wire harness (HM))

YES Is switched TMDS signal (TMDS_D0± - D2±) output from pins (11-1) of IC1507?

NO Is the control signal of IC1507 and IC9101 (CPLD) normal?

(HDMI_SW_INT, HDMI_RST, etc.)

YES Is switched TMDS signal (TMDS_D0± - D2±) input to pins (L2-P1) of IC3301 (VIDEO_PROCESSOR)?

YES NO Refer to “The picture doesn't appear in all modes.” Check the line between IC1507 and IC3301.

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<When EXT5/6 is used for external input> No picture on the display (10)

The HDMI signal input from EXT5/6 doesn’t come out in the display.

MAIN UNIT: EXT5 Is the HOT_PLUG detection signal input to pin (19) of the HDMI

terminal (SC1501) normal?

NO EXT5

Check between pin (19) of SC1501 and pin (16) of IC1507 (HDMI_SW). (IC1506, etc.)

EXT6 Is the HOT_PLUG detection signal input to pin (19) of the HDMI terminal (SC1502) normal?

NO EXT6

Check between pin (19) of SC1502 and pin (36) of IC1507 (HDMI_SW). (IC1506, etc.)

YES

YES Check the connection and setup with the external HDMI devices.

EXT5 Is EDID data (SDA/SCL) of IC1501 (EEPROM) accessed, and is it read from pins (15, 16) of a HDMI terminal (SC1501)?

Check short-circuit or open circuit of the I

C line.

EXT6 Is EDID data (SDA/SCL) of IC1502 (EEPROM) accessed, and is it read from pins (15, 16) of a HDMI terminal (SC1501)?

Check short-circuit or open circuit of the I

C line.

YES EXT5 Is TMDS signal (RXC± - RX2±) input from SC1501 to the pins

(19/18-28/27) of IC1507?

NO Check the line between SC1501 and IC1507.

EXT6 Is TMDS signal (RXC± - RX2±) input from SC1502 to the pins (39/38-48/47) of IC1507?

NO Check the line between SC1502 and IC1507.

YES Is switched TMDS signal (TMDS_D0± - D2±) output from pins (11-1) of IC1507?

NO Is the control signal of IC1507 and IC9101 (CPLD) normal?

(HDMI_SW_INT, HDMI_RST, etc.)

YES Is switched TMDS signal (TMDS_D0± - D2±) input to pins (L2-P1) of IC3301 (VIDEO_PROCESSOR)?

YES NO Refer to “The picture doesn't appear in all modes.” Check the line between IC1507 and IC3301.

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<When EXT7 is used for external input> No picture on the display (11)

The PC (ANALOG) video signal input from EXT7 (D-SUB-15pin-terminal) doesn’t come out in the display.

MAIN_UNIT: Are the video signal (R, G, B) and the synchronized signal (H/V) input from pins (1, 2, 3) and pins (13, 14) of EXT7 terminal

(SC1504)?

YES Check the connection and setup between SC1504 and its cir-

cumference circuit as well as the external HDMI devices. (IC1503, etc.)

NO Are the video signal (R, G, B) and the synchronized signal (H/V) input from pins (U8, Y7, W10) and pins (V10, U10) of IC3301 (VIDEO PROCESSOR)?

YES Check the line between SC1504 and IC3301.

NO Refer to “The picture doesn't appear in all modes.”

<When EXT8 is used for external input> No picture on the display (12)

The component video signal input to EXT8 doesn’t come out in the display.

TERMINAL UNIT: Is COMPONENT video signal (Y, Pb, Pr) input to pins (6, 5, 4) of EXT8 terminal (J508)?

NO Check the connection of J508 and the external input device.

YES

Is COMPONENT video signal (Y, Pb, Pr) input to pins (33, 35,

37) of IC506 (VIDEO SELECTOR)?

NO Check the line between J508 and IC506.

YES

Is detection signal (COMP1_PLUG) of the COMPONENT video signal from pin (7) of EXT8 terminal (J508) normal? (When connecting terminal: 7V, When opening: 0V)

NO Check from EXT8 terminal (J508) to pin (38) of IC506.

YES Is COMPONENT video signal (Y, Pb, Pr) output from pins (60, 59, 58) of IC506 to pins (6, 8, 10) of the connector (SC501)?

NO Check the line between IC506 and SC501.

(Q516, Q518, Q520, etc.)

MAIN UNIT: YES Is COMPONENT video signal output from pins (6, 8, 10) of the connector (SC1101)?

NO Check the connector (SC501/SC1101)

YES Is COMPONENT video signal input to pins (W6, Y9, W8) of IC3301 (VIDEO_PROCESSOR)?

NO Check the line between SC1101 and IC3301.

YES Refer to “The picture doesn't appear in all modes.”

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<During external connection> No picture on the monitor (1)

No picture appears on EXT1 - connected monitor during the tuner (U/V) reception.

Checklist:

1) Is the Signal Type (item) in MENU-Option-Input Select equal to Signal Type of an external device? ⋅ ⋅ ⋅ Set it to “CVBS”, “Y/C” or “RGB”.

2) Is ANT-CABLE disconnected or connected improperly? ⋅ ⋅ ⋅ Connect it correctly as per the operation manual.

3) The picture is sent to the monitor in a CVBS signal if the source during display is TV, CVBS or Y/C of EXT1-3.

When sent by component, etc., that signal is not sent to the monitor.

4) When the monitor picture is not sent and is not displayed on the monitor, refer to “No picture” for each terminal.

5) The video output from EXT1 is not the monitor output (output of the picture now watching).

The picture of the last selected TV channel is always sent to EXT1. (Specification)

TERMINAL UNIT: Is CVBS signal output into pin (19) of SC502 (SCART1) from pin

(2) of IC1501 (SW)?

YES Check the setting of an external input device that connects of

SC502.

Is TUNRE_CVBS signal input into pin (6) of IC503 (SW)? YES Check the IC501 (SW), IC503 (SW) and their peripheral circuits.

Is TUNRE_CVBS signal output from pin (17) of IC7504 (IFDEMO)?

YES Check the line between IC7504 and IC503.

(Q7505, IC7508, etc.)

Is IF signal output from pin (17) of TUNRE (TU7501)? YES Check the IC7504/FL7502 (VIF_SAW) and its peripheral circuits.

NO Check whether I2C is normally accessed between TU7501 and IC7507 (COFDM).

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<During external connection> No picture on the monitor (2)

No picture appears on EXT1 - connected monitor during the tuner (DTV) reception.

Checklist:

1) Is the Signal Type (item) in MENU-Option-Input Select equal to Signal Type of an external device? ⋅ ⋅ ⋅ Set it to “CVBS”, “Y/C” or “RGB”.

2) Is ANT-CABLE disconnected or connected improperly? ⋅ ⋅ ⋅ Connect it correctly as per the operation manual.

3) The picture is sent to the monitor in a CVBS signal if the source during display is TV, CVBS or Y/C of EXT1-3.

When sent by component, etc., that signal is not sent to the monitor.

4) When the monitor picture is not sent and is not displayed on the monitor, refer to “No picture” for each terminal.

5) The video output from EXT1 is not the monitor output (output of the picture now watching).

The picture of the last selected TV channel is always sent to EXT1. (Specification)

TERMINAL UNIT: Is CVBS signal outputted from pin (2) of IC1501 (SW) to pin (19)

of SC502 (SCART1)?

YES Check the setting of an external input device that connects of

SC502.

NO Is DTV_CVBS signal sent to pin (4) of IC503 (SW)? YES Check the IC501 (SW), IC503 (SW) and their peripheral circuits.

MAIN UNIT: NO Is DTV_CVBS signal output to pin (18) of connector (SC1101)? YES Check the line between SC1101 (MAIN_UNIT)/ SC501 (TERMI-

NAL UNIT) and IC503.

NO Is DTM_CVBS signal output from pin (AD4) of IC8101? YES Check the line between IC8101 and SC1101.

NO Is digital signal (DTV_SD0, DTV_SCK, DTV_WS) input to the pins (U3, U2, U1) of IC8101?

YES Check IC8101 or peripheral circuits.

NO Is digital signal (DTV_SD0, DTV_SCK, DTV_WS) output from

pins (32, 11, 10) of IC1404 (CODEC)?

YES Check connector (SC502) or connector (P7501).

NO Check IC1404, IC7507 or TU7501. (+B line, I

C line or peripheral circuit)

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<During external connection> No picture on the monitor (3)

SCART2: No picture from EXT1 appears on EXT2-connected monitor.

NOTE: Normally, if the screen during display is sent to EXT2, no picture is sent to EXT2.

Checklist:

1) Is the Signal Type (item) in MENU-Option-Input Select equal to Signal Type of an external device? ⋅ ⋅ ⋅ Set it to “CVBS”, “Y/C” or “RGB”.

2) The picture is sent to the monitor in a CVBS signal if the source during display is TV, CVBS or Y/C of EXT1-3.

When sent by component, etc., that signal is not sent to the monitor.

3) When the monitor picture is not sent and is not displayed on the monitor, refer to “No picture” for each terminal.

4) The video output from EXT1 is not the monitor output (output of the picture now watching).

The picture of the last selected TV channel is always sent to EXT1. (Specification)

TERMINAL UNIT: Is CVBS signal output from pin (51) of IC506 to pin (19) of SCART2 (SC503)?

YES Check the setting of an external input device that connects of

SC503.

NO Is CVBS signal (VIN1) sent to pin (65) of IC506 (VIDEO_SELECTOR)?

YES Check the IC506 and its peripheral circuits.

NO Is CVBS signal (VIN1) sent to pin (20) of SCART1 (SC502)? YES Check the line between SC502 and IC506.

NO Check the setting of an external input device that connects of SC502.

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<During external connection> No picture on the monitor (4)

SCART2: No picture from EXT3 appears on EXT2- connected monitor.