Samsung HTA-100 Service manual

SERVICE

Manual

DIGITAL HOME THEATER SYSTEM

Model Name : HT-A100 / HT-XA100 Model Code : HT-A100T/XET

Speaker HT-A100

Front PS-A100

Center -

Rear -

Subwoofer PS-WA100

DIGITAL HOME THEATER SYSTEM

HT-A100

CONTENTS

1. Precaution

2. Product Specification

3. Disassembly & Reassembly

4. Troubleshooting

5. Exploded View & Part List

6. PCB Diagram

7. Schematic Diagram

Refer to the service manual in the GSPN (see the rear cover) for the more information.

This Service Manual is a property of Samsung Electronics

Co.,Ltd. Any unauthorized use of Manual can be punished

under applicable International and/or domestic law.

GSPN (Global Service Partner Network)

Area Web Site

North America service.samsungportal.com

Latin America latin.samsungportal.com

CIS cis.samsungportal.com

Europe europe.samsungportal.com

China china.samsungportal.com

Asia asia.samsungportal.com

Mideast & Africa mea.samsungportal.com

Printed in Korea

Contents

1. Precaution

1-1 Safety Precautions ...........................................................................................1-1

1-2 Servicing Precautions ......................................................................................

1-3 Precautions for Electrostatically Sensitive Devices (ESDs) .............................

2. Product Specification

2-1 Product Feature ...............................................................................................2-1

2-2 Specifications ...................................................................................................

2-3 Specifications Analysis .....................................................................................

2-4 Accessories ......................................................................................................

3. Disassembly & Reassembly

3-1 Overall Disassembly & Reassembly ................................................................3-1

1-3

1-4

2-2

2-4

2-6

4. Troubleshooting

4-1 Checkpoints by Error Mode.............................................................................. 4-2

4-2 Measures to be taken when the Protection Circuit operates ...........................

4-3 Initialization & Upgrade Methods .....................................................................

5. Exploded View & Part List

5-1 SET Exploded View .........................................................................................5-2

5-2 Speaker System ...............................................................................................

5-3 Electrical Part List ............................................................................................5-5

4-19

4-21

5-4

Contents

6. PCB Diagram

6-1 Wiring Diagram ................................................................................................6-2

6-2 VFD PCB Top ...................................................................................................

6-3 VFD PCB Bottom .............................................................................................

6-4 AUX. SPK PCB Top .........................................................................................

6-5 AUX. SPK Bottom ............................................................................................

6-6 AMP PCB Top ..................................................................................................

6-7 AMP PCB Bottom .............................................................................................

6-8 W/LESS. OPT PCB Top ...................................................................................

6-9 W/LESS. OPT PCB Bottom .............................................................................

6-10 USB PCB Top ...................................................................................................

6-11 USB PCB Bottom .............................................................................................

6-12 KEY PCB Top ...................................................................................................

6-13 KEY PCB Bottom .............................................................................................

6-14 MAIN PCB Top .................................................................................................

6-15 MAIN PCB Bottom ...........................................................................................

6-16 BLUETOOTH PCB Top ....................................................................................

6-17 BLUETOOTH PCB Bottom ..............................................................................

6-18 POWER PCB Top ............................................................................................

6-19 POWER PCB Bottom .......................................................................................

6-20 SMPS PCB Top ................................................................................................

6-3

6-5

6-6

6-8

6-9

6-12

6-13

6-14

6-16

6-17

6-18

6-19

6-21

6-24

6-25

6-26

7. Schematic Diagram

7-1 Overall Block Diagram .....................................................................................7-2

7-2 AMP_USB ........................................................................................................

7-3 AMP_VIDEO JACK ..........................................................................................

7-4 AMP_SPK ........................................................................................................

7-5 AMP_VFD ........................................................................................................

7-6 AMP_POWER ..................................................................................................

7-7 KEY_FUNC ......................................................................................................

7-8 KEY_POWER ..................................................................................................

7-9 MAIN_MICOM ..................................................................................................

7-10 MAIN_HDMI .....................................................................................................

7-11 MAIN_DSP .......................................................................................................

7-12 MAIN_PWM .....................................................................................................

7-13 MAIN_VIDEO ...................................................................................................

7-14 MAIN_MPEG

7-15 SMPS ...............................................................................................................

....................................................................................................7-15

7-3

7-4

7-5

7-6

7-7

7-8

7-9

7-10

7-11

7-12

7-13

7-14

7-16

Precaution

1. Precaution

Follow these safety, servicing and ESD precautions to prevent damage and protect against potential hazards such

as electrical shock and X-rays.

1-1 Safety Precautions

1. Be sure that all of the built-in protective devices are replaced.

2. When reinstalling the chassis and its assemblies, be sure to restore all protective devices, including control

knobs and compartment covers.

3. Make sure that there are no cabinet openings through which people--particularly children--might insert fingers

and contact dangerous voltages. Such openings include the spacing between the picture tube and the cabinet

mask, excessively wide cabinet ventilation slots, and improperly fitted back covers.

4. Design Alteration Warning:

Never alter or add to the mechanical or electrical design of the unit.

Example: Do not add auxiliary audio or video connectors. Such alterations might create a safety hazard.

Also, any design changes or additions will void the manufacturer’s warranty.

5. Leakage Current Hot Check (Fig. 1-1):

Warning: Do not use an isolation transformer during this

test. Use a leakage-current tester or a metering system

that complies with American National Standards Institute

(ANSI C101.1, Leakage Current for Appliances), and

Underwriters Laboratories (UL Publication UL1410,

59.7).

With the unit completely reassembled, plug the AC line

cord directly into a 120V AC outlet. With the unit’s AC

switch first in the ON position and then OFF, measure

the current between a known earth ground (metal water

DEVICE UNDER

TEST

TEST ALL

EXPOSED METAL

SURFACES

2-WIRE CORD

ALSO TEST WITH

PLUG REVERSED

(USING AC

ADAPTER PLUG

AS REQUIRED)

<Fig. 1-1 AC Leakage Test>

LEAKAGE

CURRENT

TESTER

(READING SHOULD NOT BE ABOVE 0.5mA)

EARTH

GROUND

pipe, etc.) and all exposed metal parts. Examples:

Handle brackets, metal cabinets, screwheads and control shafts. The current measured should not exceed 0.5

milliamp. Reverse the powerplug prongs in the AC outlet and repeat.

6. Insulation Resistance Cold Check:

(1) With the unit’s AC plug disconnected from the AC

source, connect an electrical jumper across the two AC

Antenna Terminal

prongs. (2) Set the power switch to ON. (3) Measure

the resistance between the shorted AC plug and any

exposed metallic parts.

Example: Screwheads, antenna, control shafts or handle

brackets.

Exposed

Metal Part

ohm

Ohmmeter

<Fig. 1-2 Insulation Resistance Test>

If any of the exposed metallic parts has a return path

to the chassis, the measured resistance should be between 1 and 5.2 megohms. If there is no return path, the

measured resistance should be “infinite.” If the resistance is outside these limits, a shock hazard might exist.

See Fig. 1-2

Samsung Electronics 1-1

1-2 Samsung Electronics

Precaution

7. Components, parts and wiring that appear to have overheated or that are otherwise damaged should be

replaced with parts that meet the original specifications. Always determine the cause of damage or overheating,

and correct any potential hazards

8. Observe the original lead dress, especially near the following areas: Antenna wiring, sharp edges, and

especially the AC and high voltage power supplies. Always inspect for pinched, out-of-place, or frayed wiring.

Do not change the spacing between components and the printed circuit board. Check the AC power cord for

damage. Make sure that no wires or components touch thermally hot parts.

9. Product Safety Notice:

Some electrical and mechanical parts have special safety-related characteristics which might not be obvious

from visual inspection. These safety features and the protection they give might be lost if the replacement

component differs from the original--even if the replacement is rated for higher voltage, wattage, etc.

10. Components that are critical for safety are indicated in the circuit diagram by shading,

or . Use

replacement components that have the same ratings, especially for flame resistance and dielectric strength

specifications. A replacement part that does not have the same safety characteristics as the original might

create shock, fire or other hazards.

Precaution

1-2 Servicing Precautions

1. Servicing precautions are printed on the cabinet. Follow them.

2. Always unplug the unit’s AC power cord from the AC power source before attempting to: (a) Remove or reinstall

any component or assembly, (b) Disconnect an electrical plug or connector, (c) Connect a test component in

parallel with an electrolytic capacitor.

3. Some components are raised above the printed circuit board for safety. An insulation tube or tape is sometimes

used. The internal wiring may be clamped to prevent contact with thermally hot components. Reinstall all such

elements to their original position.

4. After servicing, always check that the screws, components and wiring have been correctly reinstalled.

Make sure that the portion around the serviced part has not been damaged.

5. Check the insulation between the blades of the AC plug and accessible conductive parts (examples: metal

panels, input terminals and earphone jacks).

6. Insulation Checking Procedure: Disconnect the power cord from the AC source and turn the power switch ON.

Connect an insulation resistance meter (500V) to the blades of the AC plug.

The insulation resistance between each blade of the AC plug and accessible conductive parts (see above)

should be greater than 1 megohm.

7. Never defeat any of the B+ voltage interlocks. Do not apply AC power to the unit (or any of its assemblies)

unless all solid-state heat sinks are correctly installed.

8. Always connect a test instrument’s ground lead to the instrument chassis ground before connecting the positive

lead; always remove the instrument’s ground lead last.

First read the “Safety Precautions” section of this manual. If some unforeseen circumstance

creates a conflict between the servicing and safety precautions, always follow the safety

precautions.

Samsung Electronics 1-3

Precaution

1-3 Precautions for Electrostatically Sensitive Devices (ESDs)

1. Some semiconductor (“solid state”) devices are easily damaged by static electricity.

Such components are called Electrostatically Sensitive Devices (ESDs). Examples include integrated circuits

and some field-effect transistors. The following techniques will reduce the occurrence of component damage

caused by static electricity.

2. Immediately before handling any semiconductor components or assemblies, drain the electrostatic charge from

your body by touching a known earth ground. Alternatively, wear a discharging wrist-strap device. (Be sure to

remove it prior to applying power--this is an electric shock precaution.)

3. After removing an ESD-equipped assembly, place it on a conductive surface such as aluminum foil to prevent

accumulation of electrostatic charge.

4. Do not use freon-propelled chemicals. These can generate electrical charges that damage ESDs.

5. Use only a grounded-tip soldering iron when soldering or unsoldering ESDs.

6. Use only an anti-static solder removal device. Many solder removal devices are not rated as “anti-static” (these

can accumulate sufficient electrical charge to damage ESDs).

7. Do not remove a replacement ESD from its protective package until you are ready to install it.

Most replacement ESDs are packaged with leads that are electrically shorted together by conductive foam,

aluminum foil or other conductive materials.

8. Immediately before removing the protective material from the leads of a replacement ESD, touch the protective

material to the chassis or circuit assembly into which the device will be installed.

9. Minimize body motions when handing unpackaged replacement ESDs. Motions such as brushing clothes

together, or lifting a foot from a carpeted floor can generate enough static electricity to damage an ESD.

1-4 Samsung Electronics

2. Product Specification

2-1 Product Feature

2-1-1 HT-A100 Product Feature

 300W Power

 2.1 CH HTiB

- Virtual 5.1 Ch Surround

 HDMI /w 1080P up-scale

- Anynet+ (HDMI CEC)

 Bluetooth (USA Only)

 USB Host w/ video playback

 DVD-Audio Playback

Product Specification

 2 way 2 speaker

2-1-2 HT-XA100 Product Feature

 600W Power

 5.1 CH HTiB

 HDMI /w 1080P up-scale

- Anynet+ (HDMI CEC)

Bluetooth (USA Only)

 USB Host w/ video playback

 DVD-Audio Playback

 2 way 2 speaker

Samsung Electronics 2-1

2-2 Samsung Electronics

Product Specification

2-2 Specifications

 Basic Specification

Model Name HT-A100 / HT-XA100

Power Requirements AC 220V, 60Hz

General

Disc

Video

Output

Power Consumption

Weight 8.8 Ibs

Dimensions 18.5 (W) x 4.6 (H) x 7.7 (D) inches

Operating Temperature Range

Operating Humidity Range

DVD (Digital Versatile Disc)

CD: 5 inches

(COMPACT DISC)

CD: 3 1/2 inches

(COMPACT DISC)

Composite Video

Component Video

55 W

+41°F to +95°F

10 % to 75 %

Reading Speed: 3.49 ~ 4.06 m/sec.

Approx. Play Time (Single Sided, Single Layer Disc): 135 min.

Reading Speed: 4.8 ~ 5.6 m/sec.

Maximum Play Time: 74 min.

Reading Speed: 4.8 ~ 5.6 m/sec.

Maximum Play Time: 20 min.

1.0 Vp-p (75 Ω load)

Y: 1.0 Vp-p (75 Ω load)

PR: 0.70 Vp-p (75 Ω load)

PB: 0.70 Vp-p (75 Ω load)

Amplifier

HDMI Impedance: 85~115Ω

Front speaker output

Center speaker output

Rear speaker output

Subwoofer speaker output

Frequency range

S/N Ratio

Channel separation

Input sensitivity

100W x 2 (3Ω)

100W (3Ω)

100W x 2 (3Ω)

100W (3Ω)

20Hz ~ 20KHz

70dB

60dB

(AUX) 400mV

Samsung Electronics 2-3

Product Specification

 HT-A100 Speaker Specification

Speaker system

Impedance 3 Ω 3 Ω

Frequency range

Output sound pressure level

Speaker

Rated input

Maximum input

Dimensions (W x H x D)

Weights

 HT-XA100 Speaker Specification

Speaker system

2.1ch speaker system

Front Subwoofer

140Hz ~ 20KHz 35Hz ~ 160Hz

86dB 86dB

100W 100W

200W 200W

Front: 4.25 x 9.68 x 8.58 inches

Subwoofer: 7.09 x 15.3 x 15.59 inches

Front: 2.43 lbs

Subwoofer: 14.1 lbs

5.1ch speaker system

Front/Center/Rear Subwoofer

Speaker

Impedance 3 Ω 3 Ω

Frequency range

Output sound pressure level

Rated input

Maximum input

Dimensions (W x H x D)

Weights

140Hz ~ 20KHz 35Hz ~ 160Hz

86dB 86dB

100W 100W

200W 200W

Front/Rear: 4.25 x 9.68 x 8.58 inches (Stand Base: Ø14inch)

Center: 14.8 x 3.29 x 5.59 inches

Subwoofer: 7.09 x 15.3 x 15.59 inches

Front: 2.43 lbs, Rear: 2.09 lbs

Center: 2.64 lbs, Subwoofer: 14.1 lbs

2-4 Samsung Electronics

Product Specification

2-3 Specifications Analysis

Model Name

Photo

Output

Power

General

Compatible

A/V

DVD (Video)

Sound Mode

SDSM-EX (DNSE 5.1) X X X

Audio

Decoding

RMS (10% THD), REF: 1CH

Output Power (ch)

HDMI CEC

Calliope X X X

Deck Slot In Slot In Slot In

DVD Disc Capacity

Front Display

Sleep

Dimmer

CD/CD-R/CD-RW

VCD/SVCD

DVD/DVD-R/DVD-RW

MP3

JPEG Viewer

DVD-Audio

DVD-OK

WMA

DIVX

SACD

WIRELESS

USB HOST

Anynet Anynet+ Anynet+ Anynet+

Progressive Scan (NT/PAL)

Logo copy

NTSC ↔ PAL

PAL M (Brazil)

EQ/DSP X 3Mode / 5Mode 3Mode / 5Mode

POWER BASS

VIRTUAL SOUND

Dolby Digital

Dolby ProLogic-II

Dolby ProLogic-IIX

DTS

Dolby Digital EX

DTS ES Discrete 6.1

DTS 96/24

THX X X X

DTS Neo 6

AVI

WMV

HT-A100 HT-XA100 HT-TX500

300W 600W 1000W

100W x 3 100W x 6

  

1 DVD 1 DVD 1 DVD

1Color - VFD 1Color - VFD 1Color - VFD

  

 (except USA, EU)  (except USA, EU)  (except USA, EU)

  

 (except CIS)  (except CIS)  (except CIS)

X X

  

Divx3.11~Divx5.1, XviD Divx3.11~Divx5.1, XviD

V1/V2/V3/V7 V1/V2/V3/V7

X X X

  

 (USA only NTSC)  (USA only NTSC)  (USA only NTSC)

  

 (USA only NTSC, CIS

only PAL)

X X X

 



  

X X X

  

X X X

 (USA only NTSC, CIS

 

only PAL)

X X

 

167W x 5

(Active Subwoofer: 165W)

 (4000 Songs, only CIS)

 (USA only NTSC, CIS

only PAL)



 : application, X: non-application

Samsung Electronics 2-5

Product Specification

Video Inputs

Video

Outputs

Audio in/out

Optical jack

Coaxial jack

Headphone/

MIC Jack

Tuner

Remote Key

Speaker

Net Weight

(Kg)

Model Name

Photo

Component X X X

Composite X X X

S-Video X X X

HDMI In

Component

Composite

HDMI Out

S-Video X X X

SCART Out

Line In

Multi ch Out

Out X X X

In (Digital In)

Out X X X

In X X X

Out X X X

i-Link X X X

Headphone Jack (3.5Φ)

2 MIC Jack (6.5Φ) X X X

RDS

Preset Memory

Universal (MBR)

Key 54 Key 60 Key 60 Key

Dual Voltage

Type (Sat/Tallboy)

Stand X X

Impedance (Sat/Woofer)

Active (Powered) S/W

Set 4 4 5

HT-A100 HT-XA100 HT-TX500

X X X

  

 (1080P)  (1080P)  (1080P)

X X X

AUX1 AUX1 AUX1

AUX2 AUX2 AUX2

X X X

 (*1)  (*1)  (*2)

 

  

X X

X X X

15 15 X

  

FREE VOLTAGE

(HIGH, LOW)

Satellite Satellite Tallboy

3Ω/3Ω 3Ω/3Ω 3Ω/3Ω

X X X

FREE VOLTAGE

(HIGH, LOW)

 (EU Only)

HIGH, LOW, DUAL Voltage



 : application, X: non-application

Product Specification

2-4 Accessories

2-4-1 Supplied Accessories

Accessories Item Item code Remark

Remote Control

Batteries

HDMI Cable AH39-00721A

Video Cable AH39-40001V

FM Antenna AH42-00021A

Owner’s Instructions AH68-02056D

AH59-01907G

4301-000116

Samsung Service center

Cloth Clean AH81-02286C

2-6 Samsung Electronics

Disassembly & Reassembly

3. Disassembly & Reassembly

3-1 Overall Disassembly & Reassembly

- Be careful to follow the disassembly sequence described in the manual. Otherwise, the product

may be damaged.

- Be sure to carefully read and understand the safety instructions before performing any work as

the IC chips on the PCB are vulnerable to static electricity.

- Assemble in the reverse order of disassembly.

No. Part Name Description Description Photo

1 CABINET-

FRONT

1) Remove the 4 screws from the

bottom of CABINET-REAR.

: M3X10,BLACK

2) Remove the 4 or 5 screws from the

DECO-REAR.

: M3X10,BLACK

3) Lift the CABINET-FRONT up to

separate it.

Be careful not to make any

scratches as you remove it.

Samsung Electronics 3-1

3-2 Samsung Electronics

Disassembly & Reassembly

No. Part Name Description Description Photo

2 ASSY

SHEILD-

FRONT

PCB-VFD

1) Remove the 9 screws.

: M3X10,WHITE

2) Disconnect the Flat-Cable connected

to PCB-VFD.

3) Lift the ASSY SHIELD-FRONT up to

separate it.

Disassembly & Reassembly

No. Part Name Description Description Photo

3 PCB-SMPS 1) Remove the 4 screws.

: M3X10,WHITE

PCB-SMPS

Separate the 2 cables connected to

PCB-AMP.

In case of pulling up the PCB

cable, it is easier to pull up when

pressing the grip.

3) Separate the POWER-CABLE.

Lift the PCB-SMPS up to separate it.

Samsung Electronics 3-3

3-4 Samsung Electronics

Disassembly & Reassembly

No. Part Name Description Description Photo

4 SLOT-

MECHA

1) Remove the 4 screws.

: M3X10,WHITE

SLOT-MECHA

2) Disconnect the 3 Flat-Cables

connected to PCB-MAIN.

3) Lift the SLOT-MECHA up to separate

it.

Disassembly & Reassembly

No. Part Name Description Description Photo

5 PCB-AMP 1) Remove the 4 screws.

: M3X10,WHITE

2) Separate the 3 cables.

In case of pulling up the PCB

cable, it is easier to pull up when

pressing the grip.

PCB-AMP

3) Separate the cable of FAN after lifting

the PCB-AMP.

4) Lift the PCB-AMP completely to

separate it.

Samsung Electronics 3-5

3-6 Samsung Electronics

Disassembly & Reassembly

No. Part Name Description Description Photo

6 PCB-USB 1) Remove the screw from the

PCB-USB.

: M3X10,WHITE

PCB-USB

2) Disconnect the 2 cables connected to

PCB-MAIN.

In case of pulling up the PCB

cable, it is easier to pull up when

pressing the grip.

3) Lift the PCB-USB up to separate it.

Disassembly & Reassembly

No. Part Name Description Description Photo

7 PCB-MAIN 1) Remove the 4 screws.

: M3X10,WHITE

PCB-MAIN

2) Separate the 3 cables.

In case of pulling up the PCB

cable, it is easier to pull up when

pressing the grip.

3) Lift the PCB-MAIN up to separate it.

Samsung Electronics 3-7

Disassembly & Reassembly

No. Part Name Description Description Photo

8 ASSY

SHEILD-

REAR

1) Separate FM MODULE and

SHIELD-REAR.

ASSY SHEILD-REAR

2) Lift the SHIELD-REAR up to separate

it.

3-8 Samsung Electronics

Troubleshooting

4. Troubleshooting

4-1 Checkpoints by Error Mode ................................................................4-2

4-2 Measures to be taken when the Protection Circuit operates ...........

4-3 Initialization & Upgrade Methods ........................................................

4-19

4-21

Samsung Electronics 4-1

4-2 Samsung Electronics

Troubleshooting

4-1 Checkpoints by Error Mode

4-1-1 Power Failure

The power does not turn on.

UIC1 Main PCB;

pin 14, 40, 55, 89 5V?

Yes

Check for

POWER-SENSE (5V) at Main PCB

: pin 26 of UIC1?

Yes

Check for

Power-ON (0V) at Main PCB;

pin 38 of UIC1

Micom Power +5.6V

CN2 (Pin 22) CHECK → 5.6V?

Yes

Check Pattern +5.6V Line

Power Sense,

CN2 (Pin 1) CHECK → 5V?

Yes

Check pattern Power Sense

Line

Replace Micom (UIC1)

Replace SMPS

Yes

Check for connector from Main

PCB to Front PCB; ZCON1

Samsung Electronics 4-3

Troubleshooting

4-1-2 No Sound (waveform when 1KHz, -20dB signal is input)

No Sound

CHECK POWER

PVDD (+32V),

+12V, -12V CHECK

AMP PCB (AJ1)

Yes

AIC1 (CS5345)

AUX2: pin 7, 8

AUX1: pin 9, 10

TUNER: pin 11, 12

Yes

AIC1 (CS5345)

pin 41 CHECK

Yes

ADC INPUT CHECK

ADC OUTPUT CHECK

Replace SMPS

Check AUX1, AUX2 JACK

Pattern

AIC1 (CS5345)

power pin 36, 30, 14 (5V),

46 (3.3V) check

AIC1 (CS5345)

control pin 1, 2, 3, 4, 6

check

Check 5V, 3.3V Pattern

Yes

Replace AIC1

Yes

Check AIC1’s Control Line

Pattern

MIC1 (ES8391)

pin 65 CHECK

Yes

MPEG INPUT CHECK

Check AIC1 & MIC1 Data Line

Pattern

4-4 Samsung Electronics

Troubleshooting

pin 117, 118, 121 CHECK

ADC OUTPUT CHECK

MIC1 (ES8391)

Yes

MIC1 (ES8391)

pin 82 (MCLK),

pin 116 (LRCK),

pin 123 (SCLK)

CHECK

Yes

U1 (PS9829B)

pin 15, 16, 17 CHECK

Yes

LRCK, SCLK, MCLK

CHECK

PWM INPUT CHECK

MIC3 (AT26DF161A)

Control Pin 1, 2, 5, 6 CHECK

 Refer to wave pattern

image of Fig. 4-2.

 Refer to wave pattern

image of Fig. 4-1.

Check MIC1 & U1 Data Line

Pattern

Replace MIC3

Yes

Replace MIC1

PWM OUTPUT CHECK

Check U1’s Power pin pattern

U1 (PS9829B)

pin 48, 49, 51, 52, 54, 55, 58, 59,

61, 62, 67, 68 CHECK

Yes

 Refer to wave pattern

image of Fig. 4-3.

U1 (PS9829B)

POWER (3.3V) pin 4,10, 22,

29, 39, 47, 56, 65, 72, 84, 87,

94 CHECK

Yes

Replace U1

Samsung Electronics 4-5

Troubleshooting

AMP IC OUTPUT

CHECK

AIC 6, 7, 8 (TAS5142)

pin 22, 25, 30, 33 CHECK

Yes

 Refer to wave pattern

image of Fig. 4-4-1 and Fig. 4-4-2.

SOUND OUTPUT OK (SPK01)

 Refer to wave pattern

image of Fig. 4-5.

AIC 6, 7, 8 (TAS5142)

POWER (+12V) pin 1, 18, 19,

36 CHECK

4-6 Samsung Electronics

Troubleshooting

RIC4

RIC1

MIC1

DIC1

DIC2

CN09

 MAIN_MPEG Page, 7-15

213

 MAIN PCB Top Page, 6-19

<Fig. 4-1>

Samsung Electronics 4-7

Troubleshooting

MIC2

CN9

CN1

MIC3

MIC5

HPIC1

MIC6

AIC1

 MAIN_MPEG Page, 7-15

 MAIN PCB Bottom Page, 6-21

<Fig. 4-2>

4-8 Samsung Electronics

Troubleshooting

XIC1

DIC1

HCN1

 MAIN_PWM Page, 7-13

 MAIN PCB Top Page, 6-19

<Fig. 4-3>

+ 74 hidden pages