LG LHD675 Service Manual

SERVICE MANUAL

CAUTION

BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS” IN THIS MANUAL.

Internal Use Only

Website http://biz.lgservice.com

DVD Home Theater System

JUNE, 2015P/NO : AFN77133588

MODEL: LHD675 (LHD675, S65T3-S)

MODEL: LHD675

(LHD675, S65T3-S)

CONTENTS

SECTION 1 ........ SUMMARY

SECTION 2 ........ ELECTRICAL

SECTION 3 ........ CABINET & MAIN CHASSIS

SECTION 4 ........ REPLACEMENT PARTS LIST

1-1

SECTION 1

SUMMARY

CONTENTS

SERVICING PRECAUTIONS ............................................................................................................................ 1-3

ESD PRECAUTIONS ......................................................................................................................................... 1-5

HIDDEN KEY MODE ......................................................................................................................................... 1-6

FIRMWARE UPGRADE GUIDE ........................................................................................................................ 1-8

SPECIFICATIONS ........................................................................................................................................... 1-10

1-2

SERVICING PRECAUTIONS

NOTES REGARDING HANDLING OF THE PICK-UP

1. Notes for transport and storage

1) The pick-up should always be left in its conductive bag until immediately prior to use.

2) The pick-up should never be subjected to external pressure or impact.

Storage in conductive bag

Drop impact

2. Repair notes

1) The pick-up incorporates a strong magnet, and so should never be brought close to magnetic materials.

2) The pick-up should always be handled correctly and carefully, taking care to avoid external pressure and impact. If it is subjected to strong pressure or impact, the result may be an operational malfunction and/or damage to the printed-circuit board.

3) Each and every pick-up is already individually adjusted to a high degree of precision, and for that reason the adjustment point and installation screws should absolutely never be touched.

4) Laser beams may damage the eyes! Absolutely never permit laser beams to enter the eyes! Also NEVER switch ON the power to the laser output part (lens, etc.) of the pick-up if it is damaged.

NEVER look directly at the laser beam, and don’t allow contact with fingers or other exposed skin.

5) Cleaning the lens surface If there is dust on the lens surface, the dust should be cleaned away by using an air bush (such as used for camera lens). The lens is held by a delicate spring. When cleaning the lens surface, therefore, a cotton swab should be used, taking care not to distort lens.

Pressure

Magnet

How to hold the pick-up

Cotton swab

Conductive Sheet

6) Never attempt to disassemble the pick-up. Spring has excess pressure. If the lens is extremely dirty, apply isopropyl alcohol to the cotton swab. (Do not use any other liquid cleaners, because they will damage the lens.) Take care not to use too much of this alcohol on the swab, and do not allow the alcohol to get inside the pick-up.

1-3

Pressure

NOTES REGARDING COMPACT DISC PLAYER REPAIRS

1. Preparations

1) Compact disc players incorporate a great many ICs as well as the pick-up (laser diode). These components are sensitive to, and easily affected by, static electricity. If such static electricity is high voltage, components can be damaged, and for that reason components should be handled with care.

2) The pick-up is composed of many optical components and other high-precision components. Care must be taken, therefore, to avoid repair or storage where the temperature or humidity is high, where strong magnetism is present, or where there is excessive dust.

2. Notes for repair

1) Before replacing a component part, first disconnect the power supply lead wire from the unit

2) All equipment, measuring instruments and tools must be grounded.

3) The workbench should be covered with a conductive sheet and grounded. When removing the laser pick-up from its conductive bag, do not place the pick-up on the bag. (This is because there is the possibility of damage by static electricity.)

4) To prevent AC leakage, the metal part of the soldering iron should be grounded.

5) Workers should be grounded by an armband (1 M)

6) Care should be taken not to permit the laser pick-up to come in contact with clothing, in order to prevent static electricity changes in the clothing to escape from the armband.

7) The laser beam from the pick-up should NEVER be directly facing the eyes or bare skin.

Armband

Resistor (1 M)

CAUTION: CLASS 1M VISIBLE AND INVISIBLE LASER RADIATION WHEN OPEN. DO NOT VIEW DIRECTLY WITH OPTICAL INSTRUMENTS

Use of controls, adjustments or the performance of procedures other than those specified herein may result in hazardous radiation exposure.

Conductive Sheet

1-4

ESD PRECAUTIONS

Electrostatically Sensitive Devices (ESD)

Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive Devices (ESD). Examples of typical ESD devices are integrated circuits and some field-effect transistors and semiconductor chip components. The following techniques should be used to help reduce the incidence of component damage caused by static electricity.

1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any electrostatic charge on your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging wrist strap device, which should be removed for potential shock reasons prior to applying power to the unit under test.

2. After removing an electrical assembly equipped with ESD devices, place the assembly on a conductive surface such as aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly.

3. Use only a grounded-tip soldering iron to solder or unsolder ESD devices.

4. Use only an anti-static solder removal device. Some solder removal devices not classified as "anti-static" can generate electrical charges sufficient to damage ESD devices.

5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ESD devices.

6. Do not remove a replacement ESD device from its protective package until immediately before you are ready to install it. (Most replacement ESD devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or comparable conductive materials).

7. Immediately before removing the protective material from the leads of a replacement ESD device, touch the protective material to the chassis or circuit assembly into which the device will by installed.

CAUTION : BE SURE NO POWER IS APPLIED TO THE CHASSIS OR CIRCUIT, AND OBSERVE ALL OTHER

SAFETY PRECAUTIONS.

8. Minimize bodily motions when handing unpackaged replacement ESD devices. (Otherwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an ESD device).

CAUTION. GRAPHIC SYMBOLS

THE LIGHTNING FLASH WITH APROWHEAD SYMBOL. WITHIN AN EQUILATERAL TRIANGLE, IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF UNINSULATED “DANGEROUS VOLTAGE” THAT MAY BE OF SUFFICIENT MAGNITUDE TO CONSTITUTE A RISK OF ELECTRIC SHOCK.

THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICE LITERATURE.

1-5

HIDDEN KEY MODE

1. DISPLAY SYSTEM INFORMATION

1) Change function to DVD/CD by pressing input key, and wait until home menu is shown.

- Do not insert disc or USB at the set.

2) Go to SETUP menu by pressing SETUP button in HOME menu.

3) Move highlight at "DISPLAY -> TV Aspect -> 16:9".

4) Press "1 -> 3 -> 9 -> 7 -> 1 -> 3 -> 9 -> ENTER" in order.

5) and then, system reset menu is displayed.

6) Power off and on by pressing POWER key.

1-6

2. EEPROM EDIT

1) Change function to DVD/CD by pressing input key, and wait until home menu is shown.

- Do not insert disc or USB at the set.

2) Press "PAUSE -> 1 -> 4 -> 7 -> 2" in order.

3) and then, option setting menu is displayed. You can see 10 bytes option value.

4) Move a cursor by pressing Arrow < > key.

5) Press number 0 ~ 9, character a ~ f (1 ~ 6 for a while) for more than 5 seconds

6) Press "PAUSE" key to exit option setting menu.

After change option value, you need to make system reset.

3. DOOR LOCK / UNLOCK

1) Press Front “STOP” + Remote control “STOP” for more than 5 seconds.

2) “LOCKED” / “UNLOCKED” display on the VFD.

1-7

FIRMWARE UPGRADE GUIDE

1. MPEG

1) Copy ﬁ rmware to USB (Do not change ﬁ le name). Ex) LG_LHD655LD7_1501051.rom

2) Change function to DVD/CD by pressing input key, and wait until home menu is shown.

3) Inset USB device which includes ﬁ rmware.

4) Firmware is detected automatically and then, shows blue screen in TV.

 If home menu is maintained after inserting USB, press music icon.

5) Take off the USB and press PLAY key.

6) and then, upgrading is started.

- Do not turn off the set until upgrade is ﬁ nished.

7) After ﬁ nishing ﬁ rmware upgrading, set will restart automatically.

8) Power off and on again by pressing POWER key.

1-8

2. AUDIO MICOM

1) Copy ﬁ rmware to USB (Do not change ﬁ le name).

Ex) LHD655_1501050.HEX

2) Change function to DVD/CD by pressing input key, and wait until home menu is shown.

3) Inset USB device which includes ﬁ rmware.

4) Firmware is detected automatically and then, shows blue screen in TV.

 If home menu is maintained after inserting USB, press music icon.

5) Upgrading is started.

- Do not turn off the set until upgrade is ﬁ nished.

- Do not pull out the USB device using ﬁ rmware upgrading.

6) After ﬁ nishing ﬁ rmware upgrading, set will be turned off.

3. EQ

1) Copy ﬁ rmware to USB (Do not change ﬁ le name).

Ex) EQ_PRG.BIN

2) Change function to DVD/CD by pressing input key, and wait until home menu is shown.

3) Inset USB device which includes ﬁ rmware.

4) Firmware is detected automatically and then, shows blue screen in TV.

 If Home menu is maintained after inserting USB, press music icon.

5) Upgrading is started.

- Do not turn off the set until upgrade is ﬁ nished.

- Do not pull out the USB device using ﬁ rmware upgrading.

6) After ﬁ nishing ﬁ rmware upgrading, set will be turned off.

1-9

SPECIFICATIONS

• GENERAL

Power requirements Refer to main label.

Power consumption Refer to main label.

Networked standby 0.4 W (If all network ports are activated.)

Dimensions (W x H x D) (360 x 60.5 x 299) mm without foot

Net Weight (Approx.) 2.69 kg

Operating temperature 5 °C to 35 °C

Operating humidity 5 % to 90 %

Bus Power Supply 5 V 500 mA

• INPUTS/ OUTPUTS

VIDEO OUT 1.0 V (p-p), 75 Ω, sync negative, RCA jack x 1

HDMI OUT (video/audio) 19 pin (Type A, HDMI™ Connector ) x 1

ANALOG AUDIO IN 2.0 Vrms (1 kHz, 0 dB), 600 Ω, RCA jack (L, R) x 1

DIGITAL IN (OPTICAL) 3 V (p-p), Optical jack x 1

PORT. IN 0.5 Vrms (3.5 mm stereo jack) x 1

• AMPLIFIER

Stereo mode 167 W + 167 W (3 Ω at 1kHz)

Surround mode Front 167 W + 167 W (3 Ω at 1 kHz)

Surround 167 W + 167 W (3 Ω at 1 kHz)

Subwoofer 167 W + 167 W (3 Ω at 1 kHz)

• TUNER

FM Tuning Range 87.5 to 108.0 MHz or 87.50 to 108.00 MHz

1-10

• SPEAKERS (FRONT/ SURROUND (REAR)/ SUBWOOFER)

Type

Front Speaker 1 Way 1 Speaker

Surround (Rear) Speaker 1 Way 1 Speaker

Subwoofer 1 Way 1 Speaker

Impedance

Front Speaker 3 Ω

Surround (Rear) Speaker 3 Ω

Subwoofer 3 Ω

Rated Input Power

Front Speaker 167 W

Surround (Rear) Speaker 167 W

Subwoofer 167 W

Max. Input Power

Front Speaker 334 W

Surround (Rear) Speaker 334 W

Subwoofer 334 W

Net Dimensions (W x H x D) (233 x 998 x 310) mm

Net Weight 12.5 kg

• Design and specifications are subject to change without notice.

1-11

1-12

SECTION 2

ELECTRICAL

CONTENTS

DIGITAL DISPLAY & MEDIA TRAINING MASTER ......................................................................................... 2-2

1. DISTORTED PICTURE ........................................................................................................................... 2-2

2. NO PICTURE .......................................................................................................................................... 2-7

3. PICTURE COLOR ................................................................................................................................. 2-12

4. NOISE/AUDIO PROBLEMS .................................................................................................................. 2-14

5. MISCELLANEOUS ................................................................................................................................ 2-17

ONE POINT REPAIR GUIDE .......................................................................................................................... 2-26

1. NO POWER PROBLEM ....................................................................................................................... 2-26

2. NO BOOTING WHEN YOU TURN THE UNIT ON, NO MESSAGE ON FRONT PANEL.................... 2-28

3. BAD HDMI VIDEO / AUDIO OUTPUT .................................................................................................. 2-34

4. NO AUDIO FROM SPEAKER ............................................................................................................... 2-35

5. NO USB ................................................................................................................................................ 2-36

6. BT CONNECTION ERROR .................................................................................................................. 2-37

ELECTRICAL TROUBLESHOOTING GUIDE ................................................................................................. 2-38

1. SYSTEM POWER SUPPLY ON SMPS BOARD .................................................................................. 2-38

2. POWER SUPPLY ON MAIN BOARD ................................................................................................... 2-41

3. SYSTEM PART ..................................................................................................................................... 2-43

4. NO HDMI OUTPUT ............................................................................................................................... 2-45

5. NO AUDIO OUTPUT ............................................................................................................................ 2-46

DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING ....................................................... 2-47

1. SYSTEM PART (MPEG CRYSTAL 27 MHz) ....................................................................................... 2-47

2. SDRAM CLOCK .................................................................................................................................... 2-48

3. VIDEO PART (100% FULL COLOR-BAR) ........................................................................................... 2-48

4. HDMI PART .......................................................................................................................................... 2-49

5. SERVO OPEN/CLOSE SIGNAL ........................................................................................................... 2-50

WIRING DIAGRAM .......................................................................................................................................... 2-59

BLOCK DIAGRAM .......................................................................................................................................... 2-61

CIRCUIT DIAGRAMS ...................................................................................................................................... 2-63

1. SMPS CIRCUIT DIAGRAM .................................................................................................................. 2-63

2. MAIN & AMP - MPEG CIRCUIT DIAGRAM ......................................................................................... 2-65

3. MAIN & AMP - SERVO CIRCUIT DIAGRAM ....................................................................................... 2-67

4. MAIN & AMP - I/O CIRCUIT DIAGRAM ............................................................................................... 2-69

5. MAIN & AMP - MICOM CIRCUIT DIAGRAM........................................................................................ 2-71

6. MAIN & AMP - PWM CIRCUIT DIAGRAM ........................................................................................... 2-73

7. MAIN & AMP - AMP CIRCUIT DIAGRAM ............................................................................................ 2-75

8. JACK CIRCUIT DIAGRAM ................................................................................................................... 2-77

9. FRONT CIRCUIT DIAGRAM ................................................................................................................ 2-79

CIRCUIT VOLTAGE CHART ........................................................................................................................... 2-81

1. ICs ......................................................................................................................................................... 2-81

2. CAPACITORS ....................................................................................................................................... 2-81

3. CONNECTORS ..................................................................................................................................... 2-82

PRINTED CIRCUIT BOARD DIAGRAMS ....................................................................................................... 2-83

1. SMPS P. C. BOARD ............................................................................................................................. 2-83

2. MAIN & AMP P. C. BOARD .................................................................................................................. 2-85

3. JACK P. C. BOARD .............................................................................................................................. 2-87

4. FRONT P. C. BOARD ........................................................................................................................... 2-87

2-1

DIGITAL DISPLAY & MEDIA TRAINING MASTER

Objective: To provide clear and concise guidelines for customer service agents to handle calls on

box goods calls.

1. DISTORTED PICTURE 1-1. Lines on Picture

Distorted picture refers to the customer getting video, but there is a problem with the video.

Determine what cables the customer is using to connect

What cables is

the customer using to

connect the DVD?

YES

the DVD to the TV and if connected properly. Refer to OM for

connections. Tighten any loose cables. Make sure the customer

is not connecting a DVD to VCR.

Copy protection can distort the picture on older DVD models.

Is the TV set

to the correct input?

YES

Do lines appear when

watching multiple discs?

YES

Do lines appear when

watching a TV program?

YES

Do lines appear

when the DVD is

connected to another TV?

Make sure the TV is on the correct input.

Turn TV off, then on to determine input.

Video when using composite, or component.

DVI when using DVI, and HDMI when using HDMI.

One disc displaying the issue is a problem with the disc.

Multiple discs displaying the problem could indicate the DVD lens

needs to be cleaned. Recommend the customer use a lens cleaner on the DVD. A lens cleaner is available at any local

electronics retailer.

Lines appearing when watching a TV program indicates

an issue with the display. If the TV program is fine,

then connect the DVD to another input on the display to

determine if the problem is following the DVD.

Connect the DVD to another TV and play a disc.

No lines during disc play back indicates a problem with the first TV.

Please refer to the owners manual for instructions on how to

connect the DVD to a TV. If the DVD has a problem on the

second TV, then see service chart for service information.

YES

Has the customer tried

another set of cables?

Have the customer try another set of cables. A bad cable can

also cause video problems. Test the cable with another device to

the TV to also determine if the TV is bad. If DVD is problem,

please see service chart for service information.

2-2

DIGITAL DISPLAY & MEDIA TRAINING MASTER

1-2. Ghost Picture

Distorted picture refers to the customer getting video, but there is a problem with the video.

Determine what cables the customer is using to connect the DVD to

What cables is the customer

using to connect the DVD?

YES

the TV and if connected properly. Refer to OM for connections.

Tighten any loose cables. Make sure the customer is not connecting a

DVD to VCR or DVD. Copy protection can distort

the picture on older VCR models.

Is the TV set to

the correct input?

YES

Do ghosting appear when

watching multiple discs?

YES

Do lines appear when

watching a TV program?

YES

Does ghosting

appear when the DVD is

connected to another TV?

Make sure the TV is on the correct input. Turn TV off,

then on to determine input. Video when using composite,

or component. DVI when using DVI, and HDMI when using HDMI.

One disc displaying the issue is a problem with the disc.

Multiple discs displaying the problem could indicate the DVD lens

needs to be cleaned. Recommend the customer use a lens cleaner

on the DVD. A lens cleaner is available at any local electronics retailer.

Ghosting appearing when watching a TV program indicates an

issue with the display. If the TV program is fine, then connect

the DVD to another input on the display to determine

if the problem is following the DVD.

Connect the DVD to another TV and play a disc.

No ghosting during disc play back indicates a problem with the first TV.

Please refer to the owners manual for instructions on how to

connect the DVD to a TV. If the DVD has a problem on the second TV,

then see service chart for service information.

YES

Has the customer tried

another set of cables?

Have the customer try another set of cables. A bad cable can

also cause video problems. Test the cable with another device to

the TV to also determine if the TV is bad. If DVD is problem,

please see service chart for service information.

2-3

DIGITAL DISPLAY & MEDIA TRAINING MASTER

1-3. Rolling Picture

Distorted picture refers to the customer getting video, but there is a problem with the video.

Determine what cables the customer is using to connect the DVD to

What cables is the customer

using to connect the DVD?

YES

the TV and if connected properly. Refer to OM for connections.

Tighten any loose cables. Make sure the customer is not connecting

a DVD to VCR. Copy protection can distort

the picture on older VCR models.

Is the TV set to

the correct input?

YES

Does rolling appear when

watching multiple discs?

YES

Does rolling appear when

watching a TV program?

YES

Does rolling appear

when the DVD is connected to

another TV?

Make sure the TV is on the correct input. Turn TV off,

then on to determine input. Video when using composite,

or component. DVI when using DVI, and HDMI when using HDMI.

One disc displaying the issue is a problem with the disc.

Multiple discs displaying the problem could indicate the DVD lens

needs to be cleaned. Recommend the customer use a lens cleaner

on the DVD. A lens cleaner is available at any local electronics retailer.

Rolling appearing when watching a TV program indicates

an issue with the display. If the TV program is fine, then connect

the DVD to another input on the display to determine if the problem

is following the DVD.

Connect the DVD to another TV and play a disc. No lines during disc

playback indicates a problem with the first TV.

Please refer to the owners manual for instructions on how to connect the

DVD to a TV. If the DVD has a problem on the second TV,

then see service chart for service information.

YES

Has the customer tried

another set of cables?

Have the customer try another set of cables. A bad cable can also

cause video problems. Test the cable with another device to the TV

to also determine if the TV is bad. If DVD is problem,

please see service chart for service information.

2-4

DIGITAL DISPLAY & MEDIA TRAINING MASTER

1-4. Shaky Picture

Distorted picture refers to the customer getting video, but there is a problem with the video.

Determine what cables the customer is using to connect the DVD to

What cables is the customer

using to connect the DVD?

YES

the TV and if connected properly. Refer to OM for connections.

Tighten any loose cables.

Make sure the customer is not connecting a DVD.

Copy protection can distort the picture on older VCR models.

Is the TV set to

the correct input?

YES

Does shaking appear when

watching multiple discs?

YES

Does shaking appear when

watching a TV program?

YES

Does shaking appear

when the DVD is connected to

another TV?

Make sure the TV is on the correct input. Turn TV off, then on

to determine input. Video when using composite, or component.

DVI when using DVI, and HDMI when using HDMI.

One disc displaying the issue is a problem with the disc.

Multiple discs displaying the problem could indicate the DVD lens

needs to be cleaned. Recommend the customer use a lens cleaner

on the DVD. A lens cleaner is available at any local electronics retailer.

Shaking appearing when watching a TV program indicates an issue with

the display. If the TV program is fine, then connect the DVD to another

input on the display to determine if the problem is following the DVD.

Connect the DVD to another TV and play a disc. No shaking during

disc play back indicates a problem with the first TV. Please refer to

the owners manual for instructions on how to connect the DVD to a TV.

If the DVD has a problem on the second TV,

then see service chart for service information.

YES

Has the customer tried

another set of cables?

Have the customer try another set of cables. A bad cable can

also cause video problems. Test the cable with another device to

the TV to also determine if the TV is bad. If DVD is problem,

please see service chart for service information.

2-5

DIGITAL DISPLAY & MEDIA TRAINING MASTER

1-5. Blurry Picture

Distorted picture refers to the customer getting video, but there is a problem with the video.

Determine what cables the customer is using to connect the DVD to

What cables is the customer

using to connect the DVD?

YES

the TV and if connected properly. Refer to OM for connections.

Tighten any loose cables. Make sure the customer is not connecting

a DVD to VCR. Copy protection can distort

the picture on older VCR models.

Is the TV set to

the correct input?

YES

Does blurriness appear when

watching multiple discs?

YES

Does blurriness appear when

watching a TV program?

YES

Does blurriness appear

when the DVD is connected to

another TV?

Make sure the TV is on the correct input. Turn TV off,

then on to determine input. Video when using composite, or component.

DVI when using DVI, and HDMI when using HDMI.

One disc displaying the issue is a problem with the disc.

Multiple discs displaying the problem could indicate the DVD lens

needs to be cleaned. Recommend the customer use a lens cleaner on

the DVD. A lens cleaner is available at any local electronics retailer.

Blurriness appearing when watching a TV program indicates an

issue with the display. If the TV program is fine, then connect

the DVD to another input on the display to determine if the problem

is following the DVD.

Connect the DVD to another TV and play a disc. No blurriness

during disc play back indicates a problem with the first TV.

Please refer to the owners manual for instructions on how to connect

the DVD to a TV. If the DVD has a problem on the second TV,

then see service chart for service information.

YES

Has the customer tried

another set of cables?

Have the customer try another set of cables.

A bad cable can also cause video problems. Test the cable with another

device to the TV to also determine if the TV is bad. If DVD is problem,

please see service chart for service information.

2-6

DIGITAL DISPLAY & MEDIA TRAINING MASTER

2. NO PICTURE 2-1. Black Screen

The entire screen is black.

Does the DVD on-screen

menu appear?

YES

What cables is the customer

using to connect the DVD?

YES

Is the TV set to

the correct input?

YES

Is the customer able to

watch TV programming?

Make sure the customer did not select 480i resolution in the menu of the DVD HTS if using HDMI connections. Change resolution on

upconversion DVD HTS by pushing the resolution button of the remote

controller. HDMI don’t support 480i resolution.

Determine what cables the customer is using to connect the DVD to

the TV and if connected properly. Refer to OM for connections.

Tighten any loose cables. Make sure the customer is not connecting a

DVD to VCR. Copy protection can distort

the picture on older VCR models.

Make sure the TV is on the correct input. Turn TV off,

then on to determine input. Video when using composite, or component.

DVI when using DVI, and HDMI when using HDMI.

If the customer is not able to watch television then he may have a

problem with his television, especially if the cable signal comes

through on a different input. If the customer can not get a TV program,

then he still may have a problem with the particular input on his TV.

YES

Can the customer connect

the DVD to another TV?

YES

Has the customer tried

another set of cables?

Have the customer connect the DVD to another TV in order to

determine if the problem is the DVD or the TV. Refer to the OM for

connections assistance. If the DVD works on the second TV,

then the customer has a problem with his TV.

Have the customer try another set of cables. A bad cable can

also cause video problems. Test the cable with another device to the TV

to also determine if the TV is bad. If DVD is problem,

please see service chart for service information.

2-7

DIGITAL DISPLAY & MEDIA TRAINING MASTER

2-2. Blue Screen

The entire screen is a solid blue color.

Does the DVD on-screen

menu appear?

YES

What cables is the customer

using to connect the DVD?

YES

Is the TV set to

the correct input?

YES

Is the customer able to

watch TV programming?

Make sure the customer did not select 480i resolution in the menu of the DVD HTS if using HDMI connections. Change resolution on

upconversion DVD HTS by pushing the resolution button of the remote

controller. HDMI don’t support 480i resolution.

Determine what cables the customer is using to connect the DVD

to the TV and if connected properly. Refer to OM for connections.

Tighten any loose cables. Make sure the customer is not connecting a

DVD to VCR. Copy protection can distort

the picture on older VCR models.

Make sure the TV is on the correct input.

Turn TV off, then on to determine input. Video when using composite,

or component. DVI when using DVI, and HDMI when using HDMI.

If the customer is not able to watch television then he may have a

problem with his television, especially if the cable signal comes

through on a different input. If the customer can not get a TV program,

then he still may have a problem with the particular input on his TV.

YES

Can the customer connect

the DVD to another TV?

YES

Has the customer tried

another set of cables?

Have the customer connect the DVD to another TV in order to

determine if the problem is the DVD or the TV. Refer to the OM for

connections assistance. If the DVD works on the second TV,

then the customer has a problem with his TV.

Have the customer try another set of cables. A bad cable can also

cause video problems. Test the cable with another device to the TV to also determine if the TV is bad. If DVD is problem,

please see service chart for service information.

2-8

DIGITAL DISPLAY & MEDIA TRAINING MASTER

2-3. Snowy Screen

A snowy picture is when black and white dots are all over the screen.

Does the DVD on-screen

menu appear?

YES

What cables is the customer

using to connect the DVD?

YES

Is the TV set to

the correct input?

YES

Is the customer able to

watch TV programming?

Make sure the customer did not select 480i resolution in the menu of the DVD HTS if using HDMI connections. Change resolution on

upconversion DVD HTS by pushing the resolution button of the remote

controller. HDMI don’t support 480i resolution.

Determine what cables the customer is using to connect the DVD

to the TV and if connected properly. Refer to OM for connections.

Tighten any loose cables. Make sure the customer is not connecting a

DVD to VCR. Copy protection can distort

the picture on older VCR models.

Make sure the TV is on the correct input. Turn TV off,

then on to determine input. Video when using composite, or component.

DVI when using DVI, and HDMI when using HDMI.

If the customer is not able to watch television then he may have a problem with his television, especially if the cable signal comes through on a different input. If the customer can not get a TV program,

then he still may have a problem with the particular input on his TV.

YES

Can the customer connect

the DVD to another TV?

YES

Has the customer tried

another set of cables?

Have the customer connect the DVD to another TV in order to

determine if the problem is the DVD or the TV. Refer to the OM for

connections assistance. If the DVD works on the second TV,

then the customer has a problem with his TV.

Have the customer try another set of cables. A bad cable can

also cause video problems. Test the cable with another device to

the TV to also determine if the TV is bad. If DVD is problem,

please see service chart for service information.

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DIGITAL DISPLAY & MEDIA TRAINING MASTER

2-4. No Signal

A “no signal” message appears on the screen of the display.

Does the DVD on-screen

menu appear?

YES

What cables is the customer

using to connect the DVD?

YES

Is the TV set to the

correct input?

YES

Is the customer able to

watch TV programming?

Make sure the customer did not select 480i resolution in the

menu of the DVD HTS if using HDMI connections. Change resolution on

upconversion DVD HTS by pushing the resolution button of the remote

controller. HDMI don’t support 480i resolution.

Determine what cables the customer is using to connect the DVD

to the TV and if connected properly. Refer to OM for connections.

Tighten any loose cables. Make sure the customer is not connecting

a DVD to VCR or DVD to DVD Recorder.

Copy protection can distort the picture on older VCR models.

Make sure the TV is on the correct input. Turn TV off,

then on to determine input. Video when using composite, or component.

DVI when using DVI, and HDMI when using HDMI.

If the customer is not able to watch television then he may have a

problem with his television, especially if the cable signal comes

through on a different input. If the customer can not get a TV program,

then he still may have a problem with the particular input on his TV.

YES

Can the customer connect

the DVD to another TV?

YES

Has the customer tried

another set of cables?

Have the customer connect the DVD to another TV in order to

determine if the problem is the DVD or the TV. Refer to the OM for

connections assistance. If the DVD works on the second TV,

then the customer has a problem with his TV.

Have the customer try another set of cables. A bad cable

can also cause video problems. Test the cable with another device to

the TV to also determine if the TV is bad. If DVD is problem,

please see service chart for service information.

2-10

DIGITAL DISPLAY & MEDIA TRAINING MASTER

2-5. Invalid Format or Format Not Supported

Is the customer using a

digital cable connection?

YES

Is the customer using an

analog cable connection?

YES

Is the display

HDCP compliant?

YES

Has the customer tried the

device on another display?

Customer’s using an DVI, or HDMI cable connection need to set the

resolution on the product above 480I. HDMI,

DVI connections can not process a 480I resolution.

They can only process a 480P, 720P, 1080I, or 1080P resolution.

Make sure the customer’s simultaneously connecting analog component cable with HDMI cable. And then If Copy Protected Disc is playing back,

analog component output is no picture. Only when the analog output is

480I, you can see the picture. In case of No Copy Protected Disc,

you can see the picture regardless of the resolution.

Make sure the display is HDCP compliant when using a DVI or

HDMI connection. A lack of HDCP compliancy on the display may

cause an invalid format or format not supported message to appear.

It can also cause a copy protection OSD to appear.

Ask the customer to connect the device to another display.

If the device starts working, then the problem may be the original display.

The customer will need to troubleshoot the display. If the device

still does not work, then the problem may be the device or the cable.

YES

Has the customer tried

another cable?

Ask the customer to replace the cable between the device and display.

If the problem is corrected, then the problem was with the cable.

If the problem continues, then the device is the problem.

Set up service according to in warranty or out of warranty procedures.

2-11

DIGITAL DISPLAY & MEDIA TRAINING MASTER

3. PICTURE COLOR 3-1. No Color

The video displays no color and only shows in black and white.

What cables is the customer

using to connect the DVD?

YES

Is the TV set to the

correct input?

YES

Does color appear when watching multiple discs?

YES

Does color appear when watching a TV program?

Determine what cables the customer is using to connect the DVD

to the TV and if connected properly. Refer to OM for connections.

Tighten any loose cables. Make sure the customer is not connecting a

DVD to VCR. Copy protection can distort the picture on older VCR models.

Make sure the TV is on the correct input according to the

connections in use. Video when using composite, or component.

DVI when using DVI, and HDMI when using HDMI.

One disc displaying the issue is a problem with the disc.

Make sure the discs the customer is using are compatible with the

DVD by checking “playable discs” in the owners manual.

Multiple discs displaying the problem indicates a problem with

the DVD HTS.

If the cable or satellite programming is connected through

another input and the customer does not get color, the customer has a

problem with his television. If a TV program does have the color,

the problem may be the DVD HTS, the cables being used,

or the TV itself.

YES

Does color appear

when the DVD is

connected to another TV?

YES

Has the customer tried

another set of cables?

Connect the DVD to another TV and play a disc. Good color during

disc play back indicates a problem with the first TV. Please refer to the

owners manual for instructions on how to connect the DVD to a TV.

If the DVD has a problem on the second TV, then see service chart for

service information.

Have the customer try another set of cables. A bad cable can

also cause video problems. Test the cable with another device to

the TV to also determine if the TV is bad. If the DVD is the problem,

please see service chart for service information.

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DIGITAL DISPLAY & MEDIA TRAINING MASTER

3-2. Poor Color

The color is poor. Examples would be washed out colors, colors bleeding into one another, or a solid tint to

a screen.

What cables is the customer

using to connect the DVD?

YES

Is the TV set to the

correct input?

YES

Is color fine when watching

multiple discs?

YES

Is color fine when watching

a TV program?

Determine what cables the customer is using to connect the DVD to

the TV and if connected properly. Refer to OM for connections.

Tighten any loose cables. Make sure the customer is not connecting a

DVD to VCR. Copy protection can distort the picture on older VCR models.

Make sure the TV is on the correct input according to the

connections in use. Video when using composite, or component.

DVI when using DVI, and HDMI when using HDMI.

One disc displaying the issue is a problem with the disc.

Make sure the discs the customer is using are compatible with the DVD

by checking “playable discs” in the owners manual. Multiple discs

displaying the problem indicates a problem with the DVD HTS.

If the cable or satellite programming is connected through another

input and the customer does not get color, the customer has a problem

with his television. If a TV program does have the color, the problem

may be the DVD HTS, the cables being used, or the TV itself.

YES

Is color fine when the DVD is

connected to another TV?

YES

Has the customer tried

another set of cables?

Connect the DVD to another TV and play a disc. Good color during

disc play back indicates a problem with the first TV. Please refer to the

owners manual for instructions on how to connect the DVD to a TV.

If the DVD has a problem on the second TV, then see service

chart for service information.

Have the customer try another set of cables. A bad cable

can also cause video problems. Test the cable with another device to

the TV to also determine if the TV is bad. If the DVD is the problem,

please see service chart for service information.

2-13

DIGITAL DISPLAY & MEDIA TRAINING MASTER

4. NOISE/AUDIO PROBLEMS 4-1. No Audio

The customer is not able to get audio.

What cables is the customer

using to connect the DVD?

YES

Determine what cables the customer is using to connect the DVD

to the TV and if connected properly. Refer to OM for connections.

Tighten any loose cables. Make sure the customer has audio cables

connected if using an HDMI to DVI adapter or video-only cables

(DVI, component, etc).

Is the customer

able to see video?

YES

Does issue occur on more than one disc?

YES

Problem occur when

watching TV program?

YES

Does the problem occur

when DVD is connected to

another TV?

Make sure the customer has not routed video

and audio to separate inputs.

Problem occurring on one disc indicates a problem with the disc.

Problem occurring on multiple discs could indicate a lens cleaner

is needed. The customer can purchase a lens cleaner at any

electronics retailer.

No audio from a TV program on a different channel or input means

there is a problem with the television.

If a TV program does have the audio, the problem may be the DVD HTS,

the cables being used, or the TV itself.

Audio is fine when the DVD is connected to another TV

indicates the problem is with the television.

Refer to the owners manual for assistance

with connecting DVD to another TV.

YES

Has the customer tried

another set of cables?

Have the customer try another set of cables. A bad cable can also

cause audio problems. Test the cable with another device to the TV to also determine if the TV is bad. If DVD is problem,

please see service chart for service information.

2-14

DIGITAL DISPLAY & MEDIA TRAINING MASTER

4-2. Distorted Audio

The audio sounds muffled, scratchy, or the audio skips.

Determine what cables the customer is using to connect the DVD

What cables is the customer

using to connect the DVD?

YES

to the TV and if connected properly. Refer to OM for connections.

Tighten any loose cables. Make sure the customer has audio

cables connected if using an HDMI to DVI adapter or video-only cables

(DVI, component, etc).

Is the customer

able to see video?

YES

Does issue occur on more than one disc?

YES

Problem occur when

watching TV program?

YES

Does the problem occur

when DVD is connected to

another TV?

Make sure the customer has not routed

video and audio to separate inputs.

Problem occurring on one disc indicates a problem with the disc. Problem occurring on multiple discs could indicate a lens cleaner

is needed. The customer can purchase a lens cleaner at any

electronics retailer.

Distorted audio from a TV program on a different channel or

input means there is a problem with the television. If a TV program

does have the audio, the problem may be the DVD HTS,

the cables being used, or the TV itself.

Audio is fine when the DVD is connected to another TV

indicates the problem is with the television.

Refer to the owners manual for assistance

with connecting DVD to another TV.

YES

Has the customer tried

another set of cables?

Have the customer try another set of cables. A bad cable can

also cause audio problems. Test the cable with another device to

the TV to also determine if the TV is bad. If DVD is problem,

please see service chart for service information.

2-15

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