Daewoo DSN-9070 Service Manual
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Daewoo DSN-9070 Service Manual

Daewoo DSN-9070 Service Manual

Internet settop box
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S/M No. : SN500P-010
Service Manual
Internet Settop Box
CHASSIS : SN-500
Model : DSN-9070
DSN-9071
DAEWOO ELECTRONICS CO., LTD
OCT. 1999
http : //svc.dwe.co.kr

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Summary of Contents for Daewoo DSN-9070

  • Page 1 S/M No. : SN500P-010 Service Manual Internet Settop Box CHASSIS : SN-500 Model : DSN-9070 DSN-9071 DAEWOO ELECTRONICS CO., LTD OCT. 1999 http : //svc.dwe.co.kr...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS 1. Instruction Manual ........................1 2. Specification ..........................13 3. Block Diagram ..........................14 4. Description of the Circuit Operation ..................15 5. Trouble Shooting.......................... 17 6. Circuit Diagram..........................26 7. Exploded View ..........................32 8. Packing View ..........................33...

  • Page 3: Instruction Manual

    PRECAUTIONS Read carefully through this manual to familiarize yourself with this high- quality “set-top box”. Instruction Make sure the rating of your household electricity supply matches that shown on the power adapter. Refer to this chapter and the "Initial installation" chapter to help you install and adjust your “set-top box”.
  • Page 4 INTRODUCTION CONTENTS Thank you very much for purchasing the Internet Set-top Box. To enjoy the Internet with this Set-top Box, you are recommended to subscribe to a local network. And for better and easier use of this product, NTRODUCTION please read through the following chapters of this manual carefully. Features _______________________ This chapter shows you the key features of the Set-top Box and Package contents ________________...
  • Page 5 INTRODUCTION -CONTINUED PACKAGE CONTENTS NAME OF PARTS FRONT PANEL Make sure you have received all of the following items in your Internet Terminal package: Set-top Box 1. POWER ON/OFF indicator Indicates whether the set-top box is on or off. 2. OPERATING indicator Wireless Keyboard 2 Batteries Power Adapter...
  • Page 6 INTRODUCTION -CONTINUED REAR PANEL WIRELESS KEYBOARD 1. VIDEO OUTPUT Connects your set-top box to the video input of your 1. TRACK-BALL To move the pointer on the screen. 2. AUDIO R, L OUTPUT 2. CLICK Connects your set-top box to the right and left audio inputs of your TV.
  • Page 7 INITIAL SET-UP CONNECTING YOUR SYSTEM SETTING THE NETWORK CONNECTING YOUR TV, TEL-LINE, PRINTER When you turn on the set-top box, the page 5 Printer will appear. While initializing the set-top box, the progress bar will be shown at the bottom of screen until the initialization is finished.
  • Page 8 WEB BROWSING INITIAL SET-UP -CONTINUED In the case of modem type, “Network setup” screen will appear like left-side. Input the SURFING THE INTERNET required information. Please refer to the below explanation. Click the “BROWSER” icon. ISPTo select the name of ISP. Tel To type the telephone number of ISP.
  • Page 9 WEB BROWSING -CONTINUED FIND INPUT BOX Type in the address of the site which you want This “find” icon is used to look for a word in to visit, and click the “go” icon. In case that the current web-site. the address of the site is in the form of ‘www.???.com’, you may type in the middle 1.
  • Page 10 WEB BROWSING -CONTINUED BOOKMARK 2. To add the site in the “bookmark”, click the ‘add’ icon and choose the folder that you want You can memorize more than 1,000 of your to put the site into. favorite web-sites, and also categorize those sites into 12 different categories (folders).
  • Page 11 WEB BROWSING -CONTINUED SETTING THE BROWSER SETTING THE PRINTER You can set the environment into your desired SCREEN & SOUND SETUP one. Just click on the “SETUP” icon, then five Click the “Screen & Sound Setup”, then the kinds of menu for the environmental set-up left-side page will appear.
  • Page 12 E-MAIL -CONTINUED E-MAIL SETTING E-MAIL Click the ‘E-mail’ icon at the right-bottom of To make use of this mail function, you have to screen, you will see this page which begins to set a few things firstly. Click the ‘E-MAIL’ icon check the received mail.
  • Page 13 E-MAIL -CONTINUED WRITE ADDRESS Click this icon to compose a new mail, then Click this icon and memorize the mail the following will be shown. addresses which you use frequently. Add To make a new mail address. Delete To delete a mail address.(First, you should choose the mail address which you want to delete.) Edit To modify the name of mail address.

  • Page 14: Specification

    OTHER FUNCTIONS UPGRADE THE SOFTWARE SPECIFICATION The software of this set-top box can be upgraded via the Internet. We will have the new software on the Internet every time any changes are Terminal DC In/Out (1) made. The local distributor will give the address of download site. To Video Out(1) upgrade the software, go to the given site and click most recent file and Audio (R/L) Out (1)

  • Page 15: Specification

    2. Specifications Model Name DSN-9070/9071 ¡ Ú ¡ Ú ¡ Ú Function Main Function Internet, E-Mail Display Type On TV (NTSC or PAL) Hardware AC Adaptor Input 110Vac or 90~260Vac (50§ Ô /60§ Ô ) DC Input 6Vdc, 1500§ Ì...

  • Page 16: Block Diagram

    3. Block Diagram...

  • Page 17: Description Of The Circuit Operation

    4. Description of the Circuit Operation 1. ARM 7500FE PART The circuit is divided into digital and analogue input/output parts around the ARM 7500FE part. Two addresses and two data buses are basically served from the ARM 7500FE part. - RA (DRAM ROW/COLUMN MULTIPLEXED ADDRESSES) uses 12 bits. - LA (LATCHED ADDRESSES) uses 29 bits.
  • Page 18 3. Description of the Circuit Operation 7. CLOCK part A clock is needed for the main board of the INTERNET SET TOP BOX. IO CLK(64§ Ö ) MCLK(56§ Ö ) and VCLK(25.18§ Ö ) are supplied to the ARM 7500FE, and XOUT(14.318§...

  • Page 19: Trouble Shooting

    5. Trouble Shooting 1. Contents 1) Don’ t turn on power LED. 2) No function of wireless keyboard or remocon. 3) Though it turn on the power LED, No raster. 4) No color or Raster with unstable sync. 5) PROM booting 6) Don’...
  • Page 20 1) Don’ t turn on Power LED START Adapter connection Reconnection check Adapter output(6Vdc) Change the adapter check SB5V and GND, R088 I005 #40 S/B 5Vdc ZD001,D040 check/Replace check I005 #40 < - > #1, I025 #4 (high) check? I025 #2(VCC) check I025 check/Replace LD001(Red) LD001 (LED)
  • Page 21 2) No function of wireless Keyboard(or Remocon) START Battery change Keyboard battery (AAM *2) check SB5V Repair and IP001 #3 SB5V and IP001 Check /Repalce IR pulse check X004(6Mhz) waveform X004 Waveform check/Replace check Between I005 and I101, I101 #165,#167, Pattern check/Repair #168,#169 check Change...
  • Page 22 3) Though it turn on the Power LED, No Raster. START Connect correctly, Video cable Change cable check X001(64M), X001, X003 X003(14.318M) Waveform check Check/Replace I019 Check/Replace I019 #12, #18, #19 Waveform check I101 RGB, H.V. Move to Item 4 Check Repair I012, I080~6 Signal...
  • Page 23 4) No color or Raster with unstable sync. START I101 R.G.B. H.V. I101 Check check Set display system I022 #30 NTSC/PAL correctly check I022 #16(14.318Mhz) I019 check/Replace check I022 Check/Replace...
  • Page 24 5) PROM booting START Repair I008,I009, I015,I016 Connection check Check /Replace Download new browser 6) Don’ t progress booting START Repair I008,I009, I015,I016 Connection check Check /Replace Modem/Lan Connect correctly Check /Replace Connection check Download new browser...
  • Page 25 7) Can’ t connect ISP START Connect correctly or Tel line or Lan line change check Ask ISP or admin ISP or Lan Info. Change setup and try check Set com2 port and IRQ3. Modem or Lan card Replace check P006 (ISA Slot) Repair or Replace check...
  • Page 26 8) Can’ t hear sound effect and playing wav file START Audio connector Connect correctly, Change check Browser Set up Set sound effect correctly check I020 In/Out I020 check/Replace check I101 Check...
  • Page 27 9) Can’ t print START Printer power Turn on printer check Connect correctly Printer connector Change connector check Browser Set up Set printer correctly check I013 In/Out and I013 check/Replace I/O line Replace I/O pin check I101 check...

  • Page 28: Circuit Diagram

    5. Circuit Diagram VIREF VDD13 VDD_CORE VSS19 VSS18 VSS_CORE SCLK SDCLK LA10 LA11 NSIOCS2 LA12 LA13 NEVENT2 LA14 NEVENT1 LA15 HCLK LA16 I_OCLK LA17 CPUCLK LA18 MEMCLK LA19 REF8M LA20 OSCPOWER LA21 NBLO LA22 NRBE LA23 NWBE LA24 LA25 VCLKO LA26 PCOMP LA27...
  • Page 29 5. Circuit Diagram...
  • Page 30 5. Circuit Diagram...
  • Page 31 5. Circuit Diagram...
  • Page 32 5. Circuit Diagram...
  • Page 33 5. Circuit Diagram ON*OFF...

  • Page 34: Exploded View

    6. Exploded View (Model Name : DSN-9070, 9071) PARTS LIST EARTH PLATE 4957900100 SPTH-C, T0.3 LABEL SERIAL PAPER(UL)/42x12 5970102200 SPEC PLATE PE FILM/UL 4921600100 4921500100 TT2 BIN 3x10 MFZN 7173301011 SCREW TAPPTITE EGI T0.6/PCM 4920100500 CABINET UPPER MASK FRONT AS...

  • Page 35: Packing View

    7. Packing View (Model Name : DSN-9070, 9071) PARTS LIST 5970102200 LABEL SERIAL PAPER(UL)/42x12 4924700500 BOX GIFT SW-2(DSN-500) 99B4900900 DRAWING-SET DSN-500A 4924500200 BAG STB LD-PE T0.05 4921800110 161x240/DSN-500A MANUAL INSTRUCTION 4924500100 BAG POLY LD-PE T0.05 485090K003 KI-1T KEYBOARD WIRELESS 48B00RV2--...

  • Page 36: E-Mail

    DAEWOO ELECTRONICS CO., LTD 686, AHYEON-DONG MAPO-GU SEOUL, KOREA C.P.O. BOX 8003 SEOUL, KOREA TELEX : DWELEC K28177-8 CABLE : “ D AEWOOELEC” E-mail : G7F00E@web.dwe.co.kr FAX : 82-32-510-7624 TEL: 82-32-510-7630...

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Dsn-9071

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