Daewoo DSJ-6000LN Service Manual Download

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Service Manual

LCD PROJECTION TV

(HDTV MONITOR)

CHASSIS : SJ-210

Model : DSJ-6000LN

S/M No. : DSJ210BEF0

Nov. 2002

DAEWOO ELECTRONICS Corp.

http : //svc.dwe.co.kr

Summary of Contents for DSJ-6000LN

Page 1: ...Service Manual LCD PROJECTION TV HDTV MONITOR CHASSIS SJ 210 Model DSJ 6000LN S M No DSJ210BEF0 Nov 2002 DAEWOO ELECTRONICS Corp http svc dwe co kr...

Page 2: ...1 1 Safety precautions 2 2 Product specification 4 3 Remocon specification 5 4 Adjustment 7 5 Circuit Manual 11 6 Trouble shooting 27 7 Block diagram 35 8 Exploded View 36 9 Connection diagram 37...

Page 3: ...to parts and components and replace if necessary follow original layout lead length and dress 5 No leads or components should touch a receiving tube or a resistor rated at 1 watt or more Lead tension...

Page 4: ...ght obstruct ventilation 4 Wall and shelf mounted installations using a commercial mounting kit must follow the factory approved mounting instructions A receiver mounted to a shelf or platform must re...

Page 5: ...4...

Page 6: ...5...

Page 7: ...ume PREV It returns to previous channel MUTE Use to mute SCREEN MODE This feature converts the screen mode each time you press the button from Normal Bright Soft User SCREEN SIZE This feature converts...

Page 8: ...ng signal level 100IRE 255 How to adjust temperature of color X 0 265 0 01 0 270 0 01 You can set Luminance level Adjust the White Balance changing R G B Bias after setting signal level 40IRE 102 Inpu...

Page 9: ...nal Adjusting Value R Gain 63 Red Color of Low High signal Adjusting Value G Gain 63 Green Color of Low High signal Adjusting Value B Gain 63 Blue Color of Low High signal Adjusting Value SVC MAIN Ini...

Page 10: ...ing Value ITEM Initial Value Description Picture 63 Contrast Fixing Value Bright 8 Brightness Adjusting Value R Drive 22 Adjusting Red Color of High level signal Adjusting Value G Drive 18 Adjusting G...

Page 11: ...10 TEMP Detecting the femperature in the inside of ENGINE V T Engine V T compensation Use Time Total usage time of LCD panel Factory Set Operating Initalization...

Page 12: ...2 1 Summery 2 2 Block Diagram 2 3 Power structure 2 4 Power Action manual 3 Sound Audio Amp 3 1 Summery 3 2 I O Specification 3 3 Block Diagram 3 4 Action Manual 4 Video 4 1 Summery 4 2 Block Diiagra...

Page 13: ...12 1 Specification Feature 1 1 Product Specification...

Page 14: ...time Lamp watt 160W 130W When the power buttons are pressed the main power lamp may flicker in green but the secondary power lamp may flicker in red and orange alternately In this case the TV s main p...

Page 15: ...150mA Primary 7 L805 380V Ballast Power 470mA Primary 8 T802 17 5V Engine Power 300mA 9 T803 7V 10V Engine Fan Power 1 000mA 10V more than 45 degree of Engine temperature 10 T803 15V Audio Power 3 000...

Page 16: ...d its voltage is elevated to DC380V from L805 by FET Switching via Debias Stabilization Circuit Q801 802 The elevated 380V is smoothed through Diode D802 and is supplied to the Ballast via P804B 3 Spe...

Page 17: ...r MOSFET by receiving Pulse signal 3 4 Latch Circuit This Circuit is the circuit that stops Power Circuit by keeping the output of the Oscillator to LOW when the Over Voltage Protection Circuit OVP an...

Page 18: ...Circuit OVP This Circuit is the circuit that operates the Latch Circuit when the Vin terminal voltage exceeds 22V TYP Basically this circuit protects Transient Voltage but the Vin erminal is supplied...

Page 19: ...SPEAKER VOL C Volume control CENTER SPEAKER Control VOL W Volume control WOOFER SPEAKER VOL SL SR Volume control SURROUND L R SPEAKER A_MUTE AUDIO MUTE 3 Sound Audio Amp 3 1 Introduction Sound Proces...

Page 20: ...nal L R CXA1855 VIDEO SWITCHING IC and DVD Sound Signal a proper sound signal is selected then it is outputted to MAIN L R In the GRAPHIC a proper signal is selected in DPL3519A among the sound signal...

Page 21: ...d of Center and Woofer is adjusted independently and Volume Balance cannot be adjusted The Sound Signal decreased by Internal Volume Control of MS3440G and DPL3519A is amplified through TDA7265 25W 25...

Page 22: ...Digital TV Processor Graphic Video Processor Image Resizing Part PW364 LVDS Output CPU Circuit for System Control 4 2 Block Diagram 4 3 Circuit Manual 1 Video Processor Circuit Video Processor receive...

Page 23: ...tter in order to transfer to LCD Engine 6 System Control Circuit This system is composed of two U COM and the overall system control is done in the Main U COM the signal is sent that controls all IC e...

Page 24: ...put Port of CXA1855 2 2 The 4 set of NTSC Video signal sent to CXA1855 is switched to the inside and is outputted in the Video_Out 2 terminal At this time one of the Composite signal coming from Vout...

Page 25: ...24...

Page 26: ...signal 3 3 Vpp processed by G A for LCD Panel and IC SLA550TH for compensating Unit is outputted along the LCD Panel connected to LCD driving board in such a way that 10 bit digital data are converte...

Page 27: ...y Signal developed from IC SLA550TH for processing Panel Signal is supplied to Panel through 4 each composite Transistor XN4051 by doing level shift to the Level 10 0Vpp 2 5V 7 5V necessary for free c...

Page 28: ...whether Sensor DETECT S W is wrong or not and fix air filter correctly After checking Detect S W is wrong or not pull down and fix Door slide correctly Replace VIDEO PCB ASSY Replace POWER PCB ASSY Ch...

Page 29: ...on OK Check output voltage of P804 POWER 380V 18V Replace Power PCB Less than 2V Check voltage of pin 1 Lamp_On in P626C at Main PCB Replace Main PCB Check voltage of pin 3 Error in P626C at Main PCB...

Page 30: ...Power PCB and GND Replace LCD ENGINE Replace SHORT PCB Replace MAIN PCB Replace VIDEO PCB Contact badness of Connector Check voltage of pin 5 ID_1 in P626C at Main PCB Check voltage of pin 3 32Pin in...

Page 31: ...ecause it is broken The main power lamp is not red FUSE CHECK I821 CHECK POTO COUPLER CHECK Check if ST5V is correct When pressing Power button check if The main power lamp is red END I804 CHECK TOP23...

Page 32: ...k D801 Q803 FUSE is easily damaged I802 is often destroyed by shock of the primary and the secondary Check normal voltage END Check voltage waveform of Q803 SPEC 3 3V if it is more than 1 5V Normal op...

Page 33: ...gh PC low Check H_sync output of IC236 7 sync output of IC228 h_sync 7 V_sync 3 Check P211M DTV input Y 17 Pb 19 Pr 21 Checkconnectionbetween 17 19 21 of P211M and 1 Y 2 Pb 3 Pr of J108 Is No Signal d...

Page 34: ...ck after IC218 9400 repair VPT00 VPT20 Check after repair Check after connection Check after connection Check Input signal 480i Check after connection Only DVD Screen is off Check IC219 3230 input 4 B...

Page 35: ...eck IC601 67 Signal External Input 1 2 3 Check U101 20 22 output Check IC601 47 48 Signal DVD Check P610A 10 11 path Check IC601 50 51 Signal HDTV Check P610A 15 16 path Check IC602 50 51 Signal MAIN...

Page 36: ...35 Z86129 caption rating...

Page 37: ...01412 7172401412 4956000600 4956000600 4953802400 4953600701 4953501200 4953902500 4953902801 4953902701 4953902900 4953902600 31 29 30 32 36 35 34 33 38 39 40 37 41 43 44 42 SCREW TAPTITE SCREW TAPTI...

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