Samsung DVDSH-873 Service manual

STB-DVD-HDD RECORDER

Chassis : Hiddink (5th Generation)

BASIC : DVD-SH875

Application Models : DVD-SH873 / DVD-SH874 /

DVD-SH875 / DVD-SH876 / DVD-SH877 / DVD-SH873M / DVD-SH875M / DVD-SH877M

If you want to know additional information which is not included on this Service

Manual, Please refer to the SKP(Samsung Knowledge Portal) web site.

Area Web Site

North America URL ; http://service.samsungportal.com

Latin America URL ; http://latin.samsungportal.com

CIS URL ; http://cis.samsungportal.com

Europe URL ; http://europe.samsungportal.com

China URL ; http://china.samsungportal.com

Asia URL ; http://asia.samsungportal.com

Mideast & Africa URL ; http://mea.samsungportal.com

SERVICE MANUAL DVD-S H873 /DVD-SH874 / DVD-SH875 /D VD-SH876 /DVD-S H877 /D VD-SH873M /D VD-SH875M /D VD-SH877M

Application Areas : XEF, XEC, XEE, XEG, XEU, XET, EUR,

AUS, EDC

Manual

SERVICE

STB-DVD-HDD RECORDER Contents

1. Precautions

2. Product Specification

3. Disassembly and Reassembly

4. Trouble Shooting

DVD-SH873 / DVD-SH875 / DVD-SH877 /

DVD-SH873M / DVD-SH875M / DVD-SH877M

5. Exploded View and Parts List

6. PCB Diagrams

7. Schematic Diagrams

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.

Printed in Korea

DVD-SH874 / DVD-SH876

CONTENTS CONTENTS

1. Precautions 1-1 ~ 1-6

1-1 Safety Precautions (1-1) 1-2 Servicing Precautions (1-3) 1-3 ESD Precautions (1-4) 1-4 Handling the optical pick-up (1-5)

 ~ 2-12

           

3. Disassembly and Reassembly 3-1 ~ 3-8

3-1 Cabinet and PCB (3-1)3-1 Cabinet and PCB (3-1) 3-2 PCB Location (3-7)3-2 PCB Location (3-7)

4. Trouble Shooting 4-1 ~ 4-50

4-1 Trouble Shooting (4-2) 4-2 Software Update (4-46)

7-5 MS9410 CODEC (Main PCB) (7-7) 7-6 DRAM (Main PCB) (7-8) 7-7 ATAPI (Main PCB) (7-9) 7-8 SAA7138 Video Decoder (Main PCB) (7-10) 7-9 DV Interface (Main PCB) (7-11) 7-10 Connector and Power (Main PCB) (7-12) 7-11 HDMI (Main PCB) (7-13) 7-12 Power Source (Jack PCB) (7-14) 7-13 B/E Connector (Jack PCB) (7-15) 7-14 FROM/To Front AV In PCB (Jack PCB) (7-17) 7-15 DVB TM Block (Jack PCB) (7-18) 7-16 I/O Switching (Jack PCB) (7-19) 7-17 I/O Jack (Jack PCB) (7-21) 7-18 New Front Micom (Jack PCB) (7-23) 7-19 Front AV Sub (Jack PCB) (7-24) 7-20 Function (Function PCB) (7-25)

5. Exploded View and Parts List 5-1 ~ 5-14

5-1 Cabinet Assembly (5-2) 5-2 Electrical Parts List (5-4)

6. PCB Diagrams 6-1 ~ 6-12

6-1 Wiring Diagram (6-2) 6-2 Main PCB (6-3) 6-3 Jack PCB (6-5) 6-4 S.M.P.S PCB (6-9) 6-4 Function PCB (6-11)

6-5 Front PCB (6-12)

7. Schematic Diagrams 7-1 ~ 7-26

7-1 All block Diagram (7-2) 7-2 Power (7-3) 7-3 S.M.P.S_01 (SMPS PCB) (7-5) 7-4 S.M.P.S_02 (SMPS PCB) (7-6)

2. Product Specication

2-1 Product Specication

Power requirements 220-240 V AC, 50 Hz

Power consumption 30 Watts / 2.5 Watts (Power off )

General

Input

Output

Recording

HDD Capac-

ity

USB

Weight 3,8 Kg

Dimensions 430 mm(W) x 300 mm(D) x 55 mm(H)

Operating temp. +5 °C to +35 °C

Other conditions Keep level when operating. Less than 75% operating humidity

Video Composite Video : 1.0 V p-p at 75Ω load, sync negative

Audio Max.Audio Input Level : 2 Vrms

DV Input IEEE 1394(4p) compatible jack

Receivable Channels PAL-B/G, SECAM-L/L', DVB-T

Scart Jack AV2 (Scart Ext) Video : Composite, RGB Audio: analogue

Audio

Video

Scart Jack AV1 (Scart TV) Video : Composite, RGB Audio: analogue

Picture Compression format MPEG-II

Audio Compression format Dolby Digital 2ch/256Kbps, MPEG-II

Recording Quality

Audio Frequency Response 20 Hz~20 kHz

DVD-SH873 160 GB

DVD-SH875 250 GB

DVD-SH877 320 GB

USB 2.0 H/S

Analogue output jacks x 1

Optical/Coaxial digital audio output

Composite Video : Video output jack x 1

Component output x 1 (Y : 1,0Vp-p, Pb : 0,70Vp-p, Pr : 0,70Vp-p at 75Ω load)

HDMI/DVI (576P, 720P,1080i, 1080P)

XP (about 8,5 Mbps), SP (about 4,5 Mbps), LP (about 2,5 Mbps), EP (about 1,6 Mbps or about 1,2 Mbps)

Host x 1

Audio Output

For DVD discs, audio signals recorded at 96 kHz sampling frequency are converted into and output at 48 kHz.

Disc Type DVD AUDIO CD (CD-DA)

Analogue Audio Output 48 / 96 kHz 44,1 kHz

Digital Audio Output 48 kHz 44,1 kHz

Samsung Electronics 2-1

Product Specication

DVD-SH875 is SAMSUNG 4th DVD/HDD Recorder with Built In Set-Top Box(STB). Built-in STB Module supply for Digital teresterial Television Reception in European Area. And DVD-SH853 have HDMI ouput termianl which gives 576 line Progressive , 720 line Progressive ,1080 line interlace and 1080P line Progressive Digital Video output

- Both Digital Television and also Radio Reception

- Enough Capacity of HARD Disk Drive(HDD)

Video Signal from STB Modeule is inputted as ITU-R BT.656 Digital Component Signal. So, All the Process of STB video can be processed in Digital Domain for HDMI Video ouput.

-576P,720P,1080i,1080P Standard Denition HDMI Video ouput

-Board Lay-out of DVD-SH875 is rather complex than old model. It consist of Main ,Jack ,Function ,Front-AV and S.M.P.S 5 PCBs Board Assembly and, DVD-Multi Loader and Hard Disk Drive.

2-1-1 Maintenance of Cabinet

For safety reasons, be sure to disconnect the AC power cord from the AC outlet.

q Do not use benzene, thinner, or other solvents for cleaning. q Wipe the cabinet with a soft cloth.

2-1-2 HDD (Hard Disk Drive)

q The hard disk has a high storage density, which enables long recording durations and quick access to written data. However, it can easily be damaged by shock, vibration or dust and should be kept away from magnets. To avoid losing important data, observe the following precautions.

q Do not use the HDD & DVD Recorder in a place subject to extreme changes in temperature. q Do not apply a strong shock to the HDD & DVD Recorder. q Do not place the HDD & DVD Recorder in a location subject to mechanical vibrations or in an unstable

location.

q Do not place the HDD & DVD Recorder on top of a heat source. q Do not disconnect the AC power cord while the power is on. q Do not attempt to change the hard disk. This may result in a malfunction.

Should the hard disk be damaged, you cannot recover lost data. The hard disk is only a temporary storage space.

2-1-3 Disc Handling

q Use discs with regular shapes. If an irregular disc (a disc with a special shape) is used, this HDD & DVD Recorder may be damaged.

2-1-4 Disc Speci cations

q This unit allows you to record and playback high quality digital video on DVD-RAM/ W/ discs or on the HDD. You can also edit digital images on DVD-RAM/ W discs or HDD.

Disc Type

2-2 Samsung Electronics

FORMAT APPLICATION

A digital versatile disc (DVD) can contain up to 135-minutes of images, 8 audio languages and 32 subtitle languages. It is equipped with MPEG-2 picture compression and Dolby digital surrounding, allowing you to enjoy vivid and clear theatre quality images in the comfort of your own home.

DVD-Video

Audio CD

CD-R/-RW

DVD

Disc Play-

back and

Recording

DVD-RW

Disc Play-

back and

Recording

DVD+RW

Disc Play-

back and

Recording

DVD-RAM Disc Play-

back and

Recording

When switching from the  rst layer to the second layer of a dual-layered DVD Video disc, there may be momentary distortion in the image and sound. This is not a malfunction of the unit.

Once a DVD-RW/ recorded in Video Mode is  nalised, it becomes DVD-Video.

An audio disc on which 44.1 kHz PCM Audio is recorded.

Plays CD-DA format audio CD-R and CD-RW discs.

The unit may not be able to play some CD-R or CD-RW discs due to the condition of the recording.

Use a 700MB (80 minutes) CD-R/-RW disc. If possible, do not use a 800MB (90 minutes) or above disc, as the disc may not play back.

If the CD-R/-RW disc was not recorded as a closed session, you may experience a delay in the early playback time, all

recorded  les may not play.

Some CD-R/-RW discs may not be playable with this unit, depending on the device which was used to burn them. For contents recorded on CD-R/-RW media from CDs for your personal use, playability may vary depending on contents and discs.

Once a DVD recorded in Video Mode is  nalised, it becomes DVD-Video.

You can record onto the available space on the disc and perform editing functions such as giving titles to discs and pro-

grammes and erasing programmes before  nalising.

When programming is erased from a DVD , that space does not become available. Once an area on a DVD is recorded on, that area is no longer available for recording, whether the recording is erased or not.

It takes about 30 seconds for the unit to complete recording management information after recording  nishes.

This product optimizes the DVD for each recording. Optimizing is carried out when you start recording after inserting the disc or turning on the unit. Recording onto the disc may become impossible if optimizing is carried out too many times.

Playback may be impossible in some cases due to the condition of recording.

This unit can play back DVD discs recorded and  nalised with a Samsung DVD video recorder. It may not be able to play some DVD discs depending on the disc and the condition of the recording.

Recording and playback can be performed on DVD-RW discs in both the Video and VR Modes.

Once a DVD-RW recorded in both the Video and VR Modes is  nalised, you cannot perform additional recording.

Once a DVD-RW recorded in Video Mode is  nalised, it becomes DVD-Video.

In both modes, playback can be performed before and after  nalisation, but additional recording, deleting and editing can not be performed after  nalisation.

If you want to record the disc in VR Mode and then record in V Mode, be sure to execute Format. Be careful when executing Format because all the recorded data may be lost.

A DVD-RW blank disc is initialised to VR Mode when  rst initialised.

With DVD+RW discs, there is no difference between DVD-Video format(Video mode) and DVD-Video Recording format(VR mode).

Finalising is generally unnecessary when using a DVD+RW disc.

Ensure that the recording mode is set to VR mode. Otherwise, this product will not be able to play the recording.

You cannot play a DVD-RAM in most DVD components due to compatibility issues.

Only DVD-RAM standard Version 2.0. discs can be played in this unit.

DVD-RAM recorded on this unit may not work with other DVD components. To determine compatibility with these DVD-RAM discs, refer to the user's manual for the player.

For cartridge type DVD-RAM discs, remove the cartridge and use the disc only.

Product Specication

Samsung Electronics 2-3

Product Specication

2-1-5 Disc Copy

Title Copy Speci cations

Contents HDD DVD DVD HDD

Recorded Video Title Supported Supported

Copy Protected Title Not supported Not supported

Copy Once Title Move (Deletes the Title in the HDD after copying) Not supported

Once "Copy Once programme" has been recorded on the DVD disc, this title cannot be copied to HDD anymore. But "Copy Once programme" has been recorded on the HDD, this title can be copied to DVD-RW (VR mode) with CPRM or DVD-RAM.

Contents Copy Speci cations

Contents HDD DVD or USB DVD HDD or USB USB HDD or DVD

MP3 Supported Supported Supported

JPEG(photo) Supported Supported Supported

DivX Supported Supported Supported

q Disc(CD-R/CD-RW/DVD-RAM, DVD (Finalise)/ DVD+RW/DVD-RW(Finalise)) a HDD or USB q HDD a DVD-R, DVD-RW(V) or USB q USB a HDD or DVD-R, DVD-RW(V) q The disc that has Video recording or has title dubbing from HDD can't be copied. q PTP USB is not available when you copy to USB. q If the disc is  nalised through Disc Manager, it can be compatible with PC as a disc with a UDF le system.

COPY PROTECTION :

q Many DVD discs are encoded with copy protection. q This product incorporates copyright protection technology that is protected by methods claims of

certain U.S. patents and other intellectual property rights owned by Macrovision Corporation and other rights owners. Use of this copyright protection technology must be authorised by Macrovision Corporation, is intended for home and other limited viewing uses only unless otherwise authorised by Macrovision Corporation. Reverse engineering or disassembly is prohibited.

2-1-6 HDD Model specication

SPEC.

Area Category Model

DVD-SH870 160G X

DVD-SH873 160G O X O O O

France

(XEF)

"UK

(XEU)"

DVB-T

DVD-SH874 160G O X O O O

DVD-SH875 250G O X O O O

DVD-SH876 250G O X O O O

DVD-SH877 320G O X O O O

DVD-SH871M 160G

DVD-SH873M 160G O O O O O

DVD-SH875M 250G O O O O O

DVD-SH876M 250G O O O O O

HDD

"Full Multi (±R Dual)"

O O O O X

Tuner MHEG

X X O X

"DVB-T/

Analog"

"HDMI

1080p"

DV1394 USB2.0

2-4 Samsung Electronics

2-2 Chassis Product Specication

Product Specication

General Model Name DVD-SH853

Chassis

Design (Type Name) VR-7253 VR7253 VR7253

Remocon Code AK59-00062D AK59-00079B AK59-00079B

Button 53Key 60Key 60Key

REMOTE

CON-

TROLLER

TERMI-

NALS

(Input/Out-

put)

Battery Type AAA AAA AAA

Body Color Black Black Black

Language English English English

Multi-Brand TV Control Yes Yes Yes

Illuminated Button - - -

Input Select (AV1/AV2/AV3/DV/PR) AV1/AV2/AV3/DV/PR AV1/AV2/AV3/DV/PR AV1/AV2/AV3/DV/PR

Scart Jack-1 A/V Input/ Output

RGB Output with Scart AV 1

Scart Jack-2 A/V with RGB Input

CVBS Output - RCA Jack Rear x1 x1 x1

Audio Output -RCA Jack Rear x1 ( L,R) x1 ( L,R) x1 ( L,R)

S-Video Output Rear x1 - -

Component Video out Rear x1(Y,Pb,Pr) x1(Y,Pb,Pr) x1(Y,Pb,Pr)

Digital Audio Out (Optical) Rear x 1 x1 x1

Digital Audio Out (Coaxial) Rear x 1 x1 x1

CVBS Input - RCA Jack

Audio Input -RCA Jack

S-Video Input

DV Input Front x1 x1 x1

Aerial Input Rear x1 x1 x1

RF Out Rear x1(w/o Modulator) x1(w/o Modulator) x1(w/o Modulator)

HDMI Output Rear x1 x1 x1

USB2.0 Mass Storage Host

USB2.0 PictBridge Slave Front - - -

Built-In Bluetooth Front - - -

Memory Card Slot Front - - -

Rear AV1 AV1 AV1

Rear Yes Yes Yes

Rear AV2 AV2 AV2

Rear - - -

Front x1(AV3) x1(AV3) x1(AV3)

Rear - - -

Front x1 ( L,R / AV3) x1 ( L,R / AV3) x1 ( L,R / AV3)

Rear - - -

Front - - -

Front x1 855, 857, 855M, 857M Yes Yes

DVD-SH873/SH875/

SH877, SH874/SH876

(DVD-SH873/SH875/SH877)

(DVD-SH874/SH876)

DVD-SH873M/SH875M/

SH877M

Samsung Electronics 2-5

Product Specication

General Model Name DVD-SH853

Chassis

DVD-video Yes Yes Yes

DVD-RAM Yes Yes Yes

DVD-RW Yes Yes Yes

DVD-R Yes Yes Yes

DVD+RW Yes Yes Yes

DVD+R Yes (w/o Logo) Yes Yes

VCD Yes (w/o Logo) - -

SVCD Yes - -

PLAY-

ABLE MEDIA & FORMAT

MPEG4 (DivX3.1/DivX 4/DivX 5/DivX6)

Yes Yes Yes

DVD-Audio - - -

SACD - - -

CD Yes Yes Yes

MP3 Yes Yes Yes

JPEG Yes(1000Folder) Yes(1000Folder) Yes(1000Folder)

WMA - - -

MIDI / SEMI - KARAOKE - - -

Memory Card - - -

Hard Disc (HDD) Yes Yes Yes

DVD-RAM Yes Yes Yes

DVD-RW Yes Yes Yes

DVD-R Yes Yes Yes

RECORD-

ING Disc

Media

DVD+RW - Yes Yes

DVD+R - Yes Yes

CD-R/-RW - - -

DUAL LAYER RECORDING -R only -R only / Yes / Yes -R only / Yes

Hard Disc (HDD) Yes Yes Yes

VIDEO MPEG-2 MPEG-2 MPEG-2

AUDIO 2ch 2ch 2ch

Recording

Format

DVD-Video Yes Yes Yes

MPEG4 - - -

RGB Recording Yes Yes Yes

CD-DA - - -

MODE XP/SP/LP/EP/SEP XP/SP/LP/EP/SEP XP/SP/LP/EP/SEP

RECORD-

ING TIME/

MODE

Drive Speed x2 x2 x2

MPEG2 (XP/SP/LP/EP) 1/2/4/8 1/2/4/8 1/2/4/8

Quick Dubbing (x4 Speed) Yes Yes Yes

DVD-SH873/SH875/

SH877, SH874/SH876

(DVD-SH873/SH875/SH877)

(DVD-SH874/SH876)

DVD-SH873M/SH875M

2-6 Samsung Electronics

Product Specication

General Model Name DVD-SH853

Chassis

VIDEO (NTSC3.58) REC/PB No/NTSC3.58 No/Q-PAL No/Q-PAL

(NTSC4.43) REC/PB No / No No / No No / No

(PAL) REC/PB Yes / Yes Yes / Yes Yes / Yes

COLOR

SYSTEM

(PAL-M) REC/PB No / No No / No No / No

(PAL-N) REC/PB No /No No / No No / No

(SECAM) REC/PB PAL Recording&Playback PAL Recording & Playback PAL Recording & Playback

(MESECAM) REC/PB No / No No/No No / No

Broadcast System SECAM-L/L', PAL-B/G SECAM-L/L', PAL-B/G PAL - I

Audio ( Stereo System ) A2/NICA A2/NICAM A2/NICAM

Number of Preset(Station Capacity) 99 99 99

Tuning System Intelligent Auto Set-up Intelligent -Auto Set Up Intelligent -Auto Set Up

CH Coverage VHF / UHF / CATV VHF/UHF/CATV VHF/UHF/CATV

RF(Modulator) Out CH & System - - -

TUNER

Default RF Out Channel - - -

Auto CH Sorting & Mapping Yes Yes Yes

Station Name Display Auto Detect Auto Detect Auto Detect

Digital (DVB-T) Yes Yes Yes

Digital (DVB-S) - - -

Digital BS - - -

TIMER

PRO-

GRAM-

MING

Number of Events (Programming No)

Gemstar ( G-CODE/ShowView/ VideoPlus+)

VPS / PDC Yes Yes Yes

12Events / Month 12Events / Month 12Events / Month

Yes Showview VideoPlus+

SI-EPG (Digital) - Yes Yes

OTR (Instant Recording Timer) OFF,0:30,1:00,~ 8:00 OFF,0:30,1:00,~ 8:00 OFF,0:30,1:00,~ 8:00

Back-Up Type & Time EEPROM / Permanent EEPROM / Permanent EEPROM / Permanent

CLOCK

Clock Type Quartz Quartz Quartz

Auto Clock Setting Yes Yes Yes

Video DAC 10bit/54MHz 10bit/54MHz 10bit/54MHz

Progressive Scan Output Yes Yes Yes

Component Video Output Yes Yes Yes

VIDEO

OUTPUT

RGB Output with Scart AV 1

Yes Yes Yes

HDMI Output Yes Yes Yes

HDMI - Upscaling(720P/1080i/ 1080P)

Yes / Yes / No Yes Yes

DVD-SH873/SH875/

SH877, SH874/SH876

(DVD-SH873/SH875/SH877)

(DVD-SH874/SH876)

DVD-SH873M/SH875M

Samsung Electronics 2-7

Product Specication

General Model Name DVD-SH853

Chassis

Audio DAC 24bit/96kHz 24bit/96kHz 24bit/96kHz

Dolby Digital Out Yes Yes Yes

AUDIO

OUTPUT

DTS Digital Out Yes Yes Yes

PCM / Bit Stream Yes / Yes Yes / Yes Yes / Yes

MPEG-1/2

Yes / Yes Yes / Yes Yes / Yes

Custom A/V Mode - - -

Play List Playback Yes Yes Yes

FR(Auto) MODE for Timer Rec Yes Yes Yes

Automatic Chapter Creation

Yes(XP/SP:5Min,LP/

EP:15Min)

Scan Search (DVD-RAM/-R/-RW) 2/4/8/16/32/128 2/4/8/16/32/128 2/4/8/16/32/128

Slow Speed 1/8,4,2 1/8,4,2 1/8,4,2

Step ( Forward / Reverse ) Yes Yes Yes

ZOOM Yes(x2,x4) Yes(x2,x4) Yes(x2,x4)

Resume Playback Yes(1Disc) Yes(1Disc) Yes(1Disc)

x1.5 Playback with Audio

Yes Yes Yes

Repeat(Title/Chapter/A-B) Yes Yes Yes

PLAY-

BACK RECORDING FEA-

TURES

Marker Yes Yes Yes

Closed Caption - - -

Black Level Select ( PAL : OFF ) - - -

CM Skip - - -

Book Mark Yes Yes Yes

Custom Parental Control Yes Yes Yes

Time Slip Yes Yes Yes

Quick Dubbing (x4 Speed) Yes Yes Yes

EZ Editing Yes Yes Yes

Music Slide Show(Authoring) - Yes Yes

Enhaced Video Quality (EVQ) Yes Yes Yes

Child Door lock for DVD Tray - - -

Time Shift Yes Yes Yes

EZ Record mode Yes Yes Yes

HDMI CEC Yes Yes Yes

DVD-SH873/SH875/

SH877, SH874/SH876

(DVD-SH873/SH875/SH877)

(DVD-SH874/SH876)

Yes(XP/SP:5Min,LP/

EP:15Min)

DVD-SH873M/SH875M

Yes(XP/SP:5Min,LP/

EP:15Min)

2-8 Samsung Electronics

Product Specication

General Model Name DVD-SH853

Chassis

Capacity 160G 160G / 250G / 320G 160G

Plate Size 3.5" 3.5" 3.5"

Recording Time(EP 8HR Mode) About 270Hr

VR PAL PAL PAL

HDD Playback

MP3 Yes Yes Yes

JPEG Yes Yes Yes

DivX Yes Yes Yes

HDD

Copy HDD-> DVD

VIDEO

JPEG Yes Yes Yes

Yes Yes Yes

MP3 Yes Yes Yes

DivX Yes Yes Yes

Copy DVD-> HDD

VIDEO

JPEG Yes Yes Yes

Yes Yes Yes

MP3 Yes Yes Yes

DivX Yes Yes Yes

Middleware FTA FTA FTA/MHEG

RS-232C(DTT Upgrade) No (CD upgrade) No (CD upgrade) No (CD upgrade)

Timer Recording/Timer Watching Yes / No Yes / No Yes / No

SI-EPG - Yes Yes

TTX (VBI / OSD) Yes Yes Yes

LCN Yes Yes Yes

Caption Yes Yes Yes

Auto ch scan Yes Yes Yes

Manual ch scan Yes Yes Yes

DTT

Favorite Channel Yes Yes Yes

Parental Guide Yes Yes Yes

Channel List Yes Yes Yes

Change PIN Code Yes Yes Yes

STB Radio Yes Yes Yes

MHEG Yes No Yes

CI - No No

MHP - No No

CAS - No No

OTA Yes Yes Yes

DVD-SH873/SH875/

SH877, SH874/SH876

(DVD-SH873/SH875/SH877)

(DVD-SH874/SH876)

About 264Hr / About 421Hr

/ About 534Hr

DVD-SH873M/SH875M

About 264Hr

Samsung Electronics 2-9

Product Specication

General Model Name DVD-SH853

Chassis

Remote Controller Yes Yes Yes

Batteries Yes(x2) Yes(x2) Yes(x2)

AV Cable (RCA Type) Yes Yes Yes

RF Cable Yes Yes Yes

Euro Scart Cable - - -

HDMI - HDMI Cable - - -

ACCES-

SORY

HDMI - DVI Cable - - -

User's Manual (Instruction Manual) Yes Yes Yes

Quick Start Guide Yes Yes Yes

DISC ( Bundle ) - - -

Customer Request Card - - -

Product Registration Card Yes Yes Yes

AS LIST

Yes (combined in I/B) - Yes

Warranty Card 5 Digit LED Yes (combined in I/B) Yes (combined in I/B)

Display of Front Panel Blue VFD VFD

Power LED Red Blue Blue

DISPLAY

REC LED Yellow in VFD in VFD

HDD/DVD LED Green Green Green

DVD-SH873/SH875/

SH877, SH874/SH876

(DVD-SH873/SH875/SH877)

(DVD-SH874/SH876)

DVD-SH873M/SH875M

2-10 Samsung Electronics

2-3 Option Product Specication

Description Fig Description Parts No Remark

Product Specication

Remote

Control

Batteries for

Remote Control

User's Manual AK68-01581A

Quick Guide AK68-01593A

AK59-00079B

4301-001035

Model Standard of

DVD-SH875/XEF

Model Standard of

DVD-SH875/XEF

S.N.A

Model Standard of

DVD-SH875/XEF

Model Standard of

DVD-SH875/XEF

S.N.A

Video/Audio

Cable

RF Cable AC39-00017A

Samsung Electronics 2-11

AC39-42001R

Model Standard of

DVD-SH875/XEF

Model Standard of

DVD-SH875/XEF

Product Specication

M E M O

2-12 Samsung Electronics

7. Schematic Diagrams

7-1 All block Diagram ----------------------------------------------------------------------------------------7-2

7-2 Power ------------------------------------------------------------------------------------------------------------7-3

7-3 S.M.P.S_01 (SMPS PCB) -------------------------------------------------------------------------------7-5

7-4 S.M.P.S_02 (SMPS PCB) -------------------------------------------------------------------------------7-6

7-5 MS9410 CODEC (Main PCB) -------------------------------------------------------------------------7-7

7-6 DRAM (Main PCB) -----------------------------------------------------------------------------------------7-8

7-7 ATAPI (Main PCB) -----------------------------------------------------------------------------------------7-9

7-8 SAA7138 Video Decoder (Main PCB) --------------------------------------------------------7-10

7-9 DV Interface (Main PCB) ----------------------------------------------------------------------------7-11

7-10 Connector and Power (Main PCB) ----------------------------------------------------------7-12

Note

● For schematic Diagram

- Resistors are in ohms, 1/8W unless otherwise noted.

Special note :

Most semiconductor devices are electrostatically sensitive and therefore require the special handling techniques described under the “electrostatically sensitive (ES) devices” section of this service manual.

Note :

Do not use the part number shown on this drawing for ordering. The correct part number is shown in the parts list (may be slightly different or amended since this drawing was prepared).

Important safety notices :

Components identied with the mark have the special characteristics for safety. When replacing any of these components. Use only the same type.

7-11 HDMI (Main PCB) --------------------------------------------------------------------------------------7-13

7-12 Power Source (Jack PCB) ------------------------------------------------------------------------7-14

7-13 B/E Connector (Jack PCB) -----------------------------------------------------------------------7-15

7-14 FROM/To Front AV In PCB (Jack PCB) ----------------------------------------------------7-17

7-15 DVB TM Block (Jack PCB) ------------------------------------------------------------------------7-18

7-16 I/O Switching (Jack PCB) -------------------------------------------------------------------------7-19

7-17 I/O Jack (Jack PCB) ----------------------------------------------------------------------------------7-21

7-18 New Front Micom (Jack PCB) ------------------------------------------------------------------7-23

7-19 Front AV Sub (Jack PCB) --------------------------------------------------------------------------7-24

7-20 Function (Function PCB)--------------------------------------------------------------------------7-25

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7-1

Schematic Diagrams

Video Signal

Audio Signal

JACK

MAIN

F-A/V

(AV3)

DV IN

IEE1394

COAXIAL

OPTICAL

AV OUT

SCART

AV1

(TV)

SCART

AV2

(EXT)

COMPONENT

OUT

CODEC

MS9410

DRAM

32M

FLASH

29GL064

Video DECORDER

SAA7138

(VIC1)

A/V

SWITCHING

HA11827

(IC216)

FRONT MICOM

uPD78F0526

Function/Display Drive

PT6315

HDMI TRANSMITTER

TDA9984

YCbCr/YC

DAC_LR

CVBS_IN

AUDIO_IN

RGB

CVBS

RGB

CVBS

Y/Pb/Pr

CVBS

USB

Function

Front

SIF

TS_data

CVBS

YCbCr/YC

7-1 All block Diagram

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7-2 Power

Schematic Diagrams

7-2-1 About S.M.P.S (Ringing Choke Converter Method)

u Terms

1) 1st : Common power input to 1st winding.

2) 2nd : Circuit followings output winding of transformer.

3) f (Frequency) : Switching frequency (T : Switching cycle)

4) Duty : (Ton/T) x 100

7-2-2 Circuit description [FLY-Back RCC(Ringing Choke Converter)] Control

(a) AC Power Rectication/Smoothing Terminal

1) A01~04 : Convert AC power to DC (Wave rectication).

2) CIS01 : Smooth the voltage converted to DC.

3) LIS01, LISO2, CIS04, CIS05 : Noise removal at power input/output.

4) RIS04 : Rush current limit resistance at the momemt of power cord insertion.

· Without PLRU1, the bridge diode might be damaged as the rush current increases.

(b) SNUBBER Circuit : RIS02, RIS03, CIS08, CIS07, DIS05

1) Prevent residual high voltage at the terminals of switch during switch off/Suppress noise. High inverted power occurs at switch off, because of the 1st winding of transformer : (V=-L1 xdi/dt. L1 : Leakage Induction) A very high residual voltage exist on both terminals of ICIS01 because dt is a very short.

2) SNUBBER circuit protects ICIS01 from damage through leakage voltage suppression by RC, (Charges the leakage voltage to DIS05 and CIS08 and discharges to RIS03, RIS02).

3) CIS07 : For noise removal

Fig. 7-2

1) ICIS01, RIS05, RIS07,RIS08 : ICIS01 driving resistance (ICIS01 works through driving resistance at power cord in)

Fig. 7-1

2) ICIS01 Vcc : RIS05, RIS07, RIS08

  q Use the output of transformer as Vcc,because the current starts to ow into transformer while ICIS01 is

active

  w Rectify to DIS07 and smooth to CIS09.   e Use the output of transformer as ICIS01 Vcc : The loads are different before and after ICIS01 driving.

(Vcc of ICIS01 decreases below OFF voltage , using only the resistance dut to lode increase after ICIS01 driving.)

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Schematic Diagrams

(d) Feedback Control Circuit

Fig. 7-3

1) F/B terminal of PQIZ1 determines output duty cyle.

2) C-E (Collector-Emitter) of PQIZ1 and F/B potential of PQIZ1 are same.

7-2-3 Internal Block Diagram (Internal Block Diagram of S.M.P.S Circuit)

Fig. 7-4

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Power

Schematic Diagrams

7-3 S.M.P.S_01 (SMPS PCB)

qIC1S01 Pin(1)

u These are the waveforms of DVD-SH873, SH875, SH877, SH873M, SH875M, SH877M.

Caution There can be some differences (Voltage, Frequency, stc.) among cameras.

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Schematic Diagrams

7-4 S.M.P.S_02 (SMPS PCB)

u These are the waveforms of DVD-SH873,

SH875, SH877, SH873M, SH875M, SH877M.

qDRVCN1 12V Pin(1) wDRVCN1 5V Pin(4)

7-6 This Document can not be used without Samsung's authorization Samsung Electronics

Caution There can be some differences (Voltage, Frequency, stc.) among cameras.

7-5 MS9410 CODEC (Main PCB)

Schematic Diagrams

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Schematic Diagrams

7-6 DRAM (Main PCB)

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7-7 ATAPI (Main PCB)

Schematic Diagrams

qDVDCN Pin(1)

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u These are the waveforms of DVD-SH873, SH875, SH877, SH873M, SH875M, SH877M.

Caution There can be some differences (Voltage, Frequency, stc.) among cameras.

Schematic Diagrams

7-8 SAA7138 Video Decoder (Main PCB)

qVR10 PCMO BCK

wVR8 PCMO LRCLK

eVR11 PCMO Data Out

rVR9 PCMIO XCLK

u These are the waveforms of DVD-SH873, SH875, SH877, SH873M, SH875M, SH877M.

Caution There can be some differences (Voltage, Frequency, stc.) among cameras.

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tVR28 VIN CLK

7-9 DV Interface (Main PCB)

Schematic Diagrams

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Schematic Diagrams

7-10 Connector and Power (Main PCB)

qDTIC1 27Mhz Pin(11)

wDXTAL 13.5MHz

u These are the waveforms of DVD-SH873, SH875, SH877, SH873M, SH875M, SH877M.

Caution There can be some differences (Voltage, Frequency, stc.) among cameras.

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7-11 HDMI (Main PCB)

Schematic Diagrams

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Schematic Diagrams

7-12 Power Source (Jack PCB)

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7-13 B/E Connector (Jack PCB)

Schematic Diagrams

Refer to a pattern

image of Table 7-5

u These are the waveforms of DVD-SH873, SH875, SH877, SH873M, SH875M, SH877M.

Caution There can be some differences (Voltage, Frequency, stc.) among cameras.

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Schematic Diagrams

qY-Color bar Pin(12) wC-Color bar Pin(14)

ePb-Color bar Pin(18)

yR in Pin(30) uG in Pin(28) iB in Pin(26)

rPr-Color bar Pin(20) tY-Color bar Pin(22)

oCVBS Input Jack (Color-Bar)

Pin(9)

aDigital Audio Data Pin(29), SJack3

sCN1 Pin(13,15)

Fig. 7-5

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