DAEWOO ELECTRONICS DSJ-4710CRU Service Manual
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DAEWOO ELECTRONICS DSJ-4710CRU Service Manual

DAEWOO ELECTRONICS DSJ-4710CRU Service Manual

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Service Manual
REAR PROJECTION TV
CHASSIS : SJ-113
MODEL : DSJ-4710CRU/4720CRU
Caution
: In this Manual, some parts can be changed for improving. their
performance without notice in the parts list. So, if you need the
latest parts information, please refer to PPL(Parts Price List)in
Service Information Center(http://svc.dwe.co.kr)
DAEWOO ELECTRONICS Corp.
http : //svc.dwe.co.kr
S/M No. :DSJ113FEFO
Aug. 2004

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Summary of Contents for DAEWOO ELECTRONICS DSJ-4710CRU

  • Page 1 All manuals and user guides at all-guides.com Service Manual REAR PROJECTION TV CHASSIS : SJ-113 MODEL : DSJ-4710CRU/4720CRU Caution : In this Manual, some parts can be changed for improving. their performance without notice in the parts list. So, if you need the latest parts information, please refer to PPL(Parts Price List)in Service Information Center(http://svc.dwe.co.kr)

  • Page 2: Table Of Contents

    6) IF Module 7) AV Main 8) Micom Module 9) Control & Union 9. PRINTED CIRCUIT BOARD 1) Main PCB 2) Power PCB 3) Convergence Module 4) IF Module 5) CRT PCB 6) Union PCB 10. EXPLODED VIEW 1) DSJ-4710CRU 2) DSJ-4720CRU...

  • Page 3: Safety Instruction

    All manuals and user guides at all-guides.com 1. Safety Instruction 1. When all services are carried out, every item required in this manual needs to be followed and the services should be performed by A/S man. 2. The following general items should be performed before staring the services. 1) Unplug the power.
  • Page 4 All manuals and user guides at all-guides.com 8. How to check a leakage current 1) Plug the power directly. 2) After connecting 1.5 ohm 10W resistance and 0.15uF condenser in a row, link one with an exposed metal part of TV set and earth the other (proper earth place such as water pipe). 9.

  • Page 5: Product Specification

    All manuals and user guides at all-guides.com 2. Specifications Model DSJ - 4710CRU/4720CRU Band I : CH02 ~ CH04 Band II : CH05 ~ CH12 Receipt Channel Cable Band : S1’ ~ S3’, S1 ~ S20 Hyper Band : S21 ~ S41 Band IV, V : CH21 ~ CH69 Screen Size...

  • Page 6: Remote Control

    All manuals and user guides at all-guides.com 3. Remote Control Power Mute Recall AV1 / AV2 / S-VHS2 / AV3 / AV4(S-VHS4) Program number (0-9) /Component/RF Use to select channel directly 0~9 Sleep Childlock This feature is used to set up the time of automatic turn off.

  • Page 7: Adjusting Method

    All manuals and user guides at all-guides.com 4. Adjusting Method Adjustment of temporary ITC Step 1. Temporary fixation of DY 1) Insert DY in R, G, B CRT and tighten the screws properly with DY pushed upward to the end (Refer to Figure 1) 2) Adjust the slant and position of DY so that the rectangle projections of DY are shown in front of the set.
  • Page 8 All manuals and user guides at all-guides.com Adjusting Method Completion of control - All adjustments need to be performed after for 1hour or more. - Heat-run is executed in the state of non-signal noise. - If a retrace line appears on the screen during heat-run, rotate the screen VR left and carry out heat-run when it disappears.
  • Page 9 All manuals and user guides at all-guides.com Adjusting Method 4) When the focus control is finished, apply a silicon bond between inside and outside diameter, paying attention so that the lens isn’t moved. 5) Project R, G, B signal only by one signal, using a lens cover and control G, R and B in the order.
  • Page 10 All manuals and user guides at all-guides.com Adjusting Method Step 5. Control of deflection yoke and tilt 1) Receive CROSS-HATCH pattern. 2) Rotating a loose DY left and right, control it so that the horizon of R, G, and B can be projected on to the screen correctly in the form of horizon.
  • Page 11 All manuals and user guides at all-guides.com Adjusting Method Step 8. Control of white balance 1) Connect a control pattern (intra-office signal cable broadcasting 32 CH) with external input 3. 2) Select the screen mode as standard. 3) Locate the sensor of 3298 system at the center of High/Low Beam. 4) Execute the projection program of control PC.
  • Page 12 All manuals and user guides at all-guides.com Adjusting Method Step 9. Control of sub brightness - Press the S9 key to enter the Sub Brightness control mode. - Screen mode: Standard 1) Receive RETMA pattern (intra-office signal cable broadcasting 96 CH) 2) Press the S8 key.

  • Page 13: Ic Description

    All manuals and user guides at all-guides.com 5. IC Description 5.1. Pin Connections and Short Descriptions for VSPB For VSP 941x/4x, the pin connections differ for pins: 1, 2, 3, 75, 76, 77, 78, 79, 80 (see Section 5.1.2. on page 210). 5.1.1.
  • Page 14 All manuals and user guides at all-guides.com IC Description...
  • Page 15 All manuals and user guides at all-guides.com IC Description...
  • Page 16 All manuals and user guides at all-guides.com IC Description...
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  • Page 18 All manuals and user guides at all-guides.com IC Description 5.1.2. Differing Pin Connections and Short Descriptions for VSP 941xB and VSP 944xB...
  • Page 19 All manuals and user guides at all-guides.com IC Description 5.2. Pin Circuits(VSP94X5B, VSP94X7B)
  • Page 20 All manuals and user guides at all-guides.com IC Description 5.3. Application Circuit 5.3.1. Application Example for QFP80 package...
  • Page 21 All manuals and user guides at all-guides.com IC Description 5.4. Pin Description(CXA2150AQ)
  • Page 22 All manuals and user guides at all-guides.com IC Description...
  • Page 23 All manuals and user guides at all-guides.com IC Description...
  • Page 24 All manuals and user guides at all-guides.com IC Description...
  • Page 25 All manuals and user guides at all-guides.com IC Description...
  • Page 26 All manuals and user guides at all-guides.com IC Description...
  • Page 27 All manuals and user guides at all-guides.com IC Description...
  • Page 28 All manuals and user guides at all-guides.com IC Description...
  • Page 29 All manuals and user guides at all-guides.com IC Description...
  • Page 30 All manuals and user guides at all-guides.com IC Description...

  • Page 31: Trouble Shooting

    All manuals and user guides at all-guides.com 6. TROUBLE SHOOTING When no sound is heard Check IC601 sound signals. #27, #28 Check IC601 input sound signals. SIF:#67 A/V:#47, #48 Chack Check C604, Check B+ IC601#47, #48 605, D603, IC601 IC101#32, #33 C606, CC612 #38, #39, #40 RC605, RC608...
  • Page 32 All manuals and user guides at all-guides.com TROUBLE SHOOTING No raster. Check IIC bus communication between main assy and ICM2 Check main Vertical deflection 5Vp-p assy, ICM2 Check ICM2 #40 (H-drive output) 0.7Vp-p 31.5KHz Horizontal deflection Check H drive signal input in Q430 base Check D drive signal in Q422 base 2Vp-p 12Vp-p...
  • Page 33 All manuals and user guides at all-guides.com TROUBLE SHOOTING When power isn’t supplied If resistance between Q430 collector and Voltage waveform of Q430 collector is base is near, horizontal output TR has shown below. been destroyed.Replace the TR. 1000 50Vp-p High voltage drive Check F401 #8 (HVG B+135V) Check F401 #10 (HVG B+135V)
  • Page 34 All manuals and user guides at all-guides.com TROUBLE SHOOTING Vertical deflection Check I301 #4 vertical SAW waveform Check ICM2 22VP-p 50Hz Check I301 #5 voltage waveform Check ICM2 22VP-p 60Hz Check I301 #2 vertical deflection waveform Check vertical B+(+15V, -15V) I301 #6, I301#1 50VP-p 60Hz...
  • Page 35 All manuals and user guides at all-guides.com TROUBLE SHOOTING When Power isn’t supplied (Stand by power:IS802) Stand by power LED isn’t red. Check IS801 #1 Replace IS801 DC 7~10V Check IS801 #1 Check RS801 is open Check RS801 is open Check DS810 Replace DS810 Check F801...
  • Page 36 All manuals and user guides at all-guides.com TROUBLE SHOOTING When Power isn’t supplied Check Stand by LED is red. Stand by circuit Check RS810 Remote Controller Check Remote DC 3.3V Power On Check Controller Circuit Replace QS802 Check QS802 works normally Replace I804 Check I804 is high or check DS815...

  • Page 37: Service Part List

    7. SERVICE PARTS LIST PART CODE PART NAME DESCRIPTION REMARK PART CODE PART NAME DESCRIPTION REMARK ZZ100 48B5550J13 TRANSMITTER REMOCON R-50J13 (AA) ZZ210 PTEGPWG041 ENGINE AS DSJ-4710CRU ZZ110 PTACPWG041 ACCESSORY AS DSJ-4710CRU M961 485961064R P16LSG03RJA M350 4850Q00610 BATTERY LR6 AA ALKALINE M962 485961064G...
  • Page 38 5CPZ560K02 COIL PEAKING 56UH K (AXIAL 3.5MM) C705 CEXF1A471V C ELECTRO 10V RSS 470MF (8X11.5) TP ZZ200 PT1FJ1G041 PCB IF CHIP MOUNT AS DSJ-4710CRU C706 CEXF1H100V C ELECTRO 50V RSS 10MF (5X11) TP A001 4859814624 PCB IF-MICOM 142.5X220(285X246/2) G2V C707...
  • Page 39 All manuals and user guides at all-guides.com Service part list PART CODE PART NAME DESCRIPTION REMARK PART CODE PART NAME DESCRIPTION REMARK CC764 HCBK103KBA C CHIP CERA 50V X7R 0.01MF K 1608 CCM56 HCBH224KBA C CHIP CERA 25V X7R 0.22MF K 1608 CC765 HCBK103KBA C CHIP CERA...
  • Page 40 HRFT333JBA R CHIP 1/10 33K OHM J 1608 RC764 HRFT471JBA R CHIP 1/10 470 OHM J 1608 ZZ260 PTC0SWG041 COVER SPEAKER AS DSJ-4710CRU RC765 HRFT101JBA R CHIP 1/10 100 OHM J 1608 M304 4953001403 COVER SPKR HIPS GY RC766 HRFT102FBA...
  • Page 41 100V 2200PF J (TP) 4859720730 TUNER VARACTOR UV1316MK3(ALG-3) C667 CMXM2A222J C MYLAR 100V 2200PF J (TP) ZZ200 PTMPJ2G041 PCB MAIN CHIP MOUNT B AS DSJ-4710CRU C668 CMXL1J224J C MYLAR 63V MEU 0.22MF J (TP) ZZ200 PTMPJ0G041 PCB MAIN (RHU) AS DSJ-4710CRU C669 CMXL1J224J C MYLAR 63V MEU 0.22MF J (TP)
  • Page 42 R CARBON FILM 1/4 120 OHM J RA22 HRFT101JBA R CHIP 1/10 100 OHM J 1608 ZZ200 PTMPJ1G041 PCB MAIN CHIP MOUNT A AS DSJ-4710CRU RA23 HRFT511JBA R CHIP 1/10 510 OHM J 1608 A001 4859809293 PCB MAIN 246X270(1X1) G2B...
  • Page 43 5S40000003 SW POWER PUSH SS-160-7-G RC205 HRFT101JBA R CHIP 1/10 100 OHM J 1608 ZZ200 PTUNJ0G041 PCB UNION RHU AS DSJ-4710CRU RC207 HRFT101JBA R CHIP 1/10 100 OHM J 1608 CA866 CEXF1V102V C ELECTRO 35V RSS 1000MF (13X25) TP RC208...
  • Page 44 SWF18 5S50101Z90 SW TACT THVV502GDA RA108 RD-4Z271J- R CARBON FILM 1/4 270 OHM J ZZ200 PTUNJAG041 PCB UNION AXIAL AS DSJ-4710CRU RA109 RD-4Z271J- R CARBON FILM 1/4 270 OHM J A001 4859810360 PCB UNION 330X246 D1B RA110 RD-AZ273J- R CARBON FILM...
  • Page 45 1/4 220 OHM J R942 RS02Z683JS R M-OXIDE FILM 2W 68K OHM J SMALL ZZ340 PTCPMSG041 PCB CRT MANUAL AS DSJ-4710CRU R943 RS02Z683JS R M-OXIDE FILM 2W 68K OHM J SMALL C943 CH1BFE472M C CERA AC AC400V 4700PF M U/C/V...
  • Page 46 RA305 RD-AZ224J- R CARBON FILM 1/6 220K OHM J J911 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING ZZ360 PTCVMSG041 PCB CONVERGENCE AS DSJ-4710CRU J912 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING L517 5MC0000100 COIL BEAD HC-3550 J913 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING...
  • Page 47 DIODE CHIP MMBD1203 L516 5CPX102J— COIL PEAKING PL 1000UH J (TAPPING) DC503 DMMBD1203B DIODE CHIP MMBD1203 ZZ200 PTCVJAG041 PCB CONVERGENCE AXIAL AS DSJ-4710CRU DC504 DMMBD1203B DIODE CHIP MMBD1203 ZZ200 PTCVJ1G041 PCB CONVERGENCE CHIP A AS DSJ-4710CRU DC507 DMMBD1203B DIODE CHIP MMBD1203...
  • Page 48 TT2 RND 3X8 MFZN RC599 HRFT472JBA R CHIP 1/10 4.7K OHM J 1608 IS802 1V1PER12AP IC SWITCH VIPER12ADIP ZZ400 PTPWMSG041 PCB POWER MANUAL AS DSJ-4710CRU L403 58H0000088 COIL H-LINEARITY TRL-370Q C408 CMYB2G514K C MYLAR 400V EU 0.51MF K L432 58C0000150 COIL CHOKE...
  • Page 49 DA-IB0214(D2.3/DY PIN) TS801 50M22A6—- TRANS SMPS ST-22A6 PB802 4857417500 TERM PIN DA-IB0214(D2.3/DY PIN) ZZ200 PTPWJ0G041 PCB POWER ODD SHAPE (RHU) AS DSJ-4710CRU PB804 4857417500 TERM PIN DA-IB0214(D2.3/DY PIN) C428 CMXF2G104J C MYLAR MPP 400V 0.1MF J PB805 4857417500 TERM PIN DA-IB0214(D2.3/DY PIN)
  • Page 50 R METAL FILM 2W 10 OHM J SMALL C853 CCXB3A471K C CERA 1KV B 470PF K (T) ZZ200 PTPWJAG041 PCB POWER AXIAL AS DSJ-4710CRU C855 CCXB3A471K C CERA 1KV B 470PF K (T) A001 4859815111 PCB POWER 330X246 D1L C857...
  • Page 51 All manuals and user guides at all-guides.com Service part list PART CODE PART NAME DESCRIPTION REMARK PART CODE PART NAME DESCRIPTION REMARK DS815 DRU1P——- DIODE RU1P R433 RD-2Z153J- R CARBON FILM 1/2 15K OHM J J325 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING R434 RD-2Z471J- R CARBON FILM...

  • Page 52: Schematic Diagram

    All manuals and user guides at all-guides.com 8. Schematic Diagram 1) Block Diagram -51-...

  • Page 53: Power

    All manuals and user guides at all-guides.com Schematic Diagram 2) Power -52-...

  • Page 54: Convergence Amp

    All manuals and user guides at all-guides.com Schematic Diagram 3) Convergence AMP -53-...

  • Page 55: Convergence Module

    All manuals and user guides at all-guides.com Schematic Diagram 4) Convergence Module -54-...

  • Page 56: Crt Amp

    All manuals and user guides at all-guides.com Schematic Diagram 5) CRT Amp -55-...

  • Page 57: If Module

    All manuals and user guides at all-guides.com Schematic Diagram 6) IF Module -56-...

  • Page 58: Av Main

    All manuals and user guides at all-guides.com Schematic Diagram 7) AV Main -57-...

  • Page 59: Micom Module

    All manuals and user guides at all-guides.com Schematic Diagram 8) Micom Module -58-...

  • Page 60: Control & Union

    All manuals and user guides at all-guides.com Schematic Diagram 9) Control & Union -59-...

  • Page 61: Printed Circuit Board

    All manuals and user guides at all-guides.com 9. PRINTED CIRCUIT BOARD 1) Main PCB -60-...

  • Page 62: Power Pcb

    All manuals and user guides at all-guides.com PRINTED CIRCUIT BOARD 2) Power PCB -61-...

  • Page 63: Convergence Module

    All manuals and user guides at all-guides.com PRINTED CIRCUIT BOARD 3) Convergence Module PCB -62-...

  • Page 64: If Module

    All manuals and user guides at all-guides.com PRINTED CIRCUIT BOARD 4) IF Module PCB -63-...

  • Page 65: Crt Pcb

    All manuals and user guides at all-guides.com PRINTED CIRCUIT BOARD 5) CRT PCB -64-...

  • Page 66: Union Pcb

    All manuals and user guides at all-guides.com PRINTED CIRCUIT BOARD 6) UNION PCB -65-...

  • Page 67: Exploded View

    All manuals and user guides at all-guides.com 10. EXPLODED VIEW 1) DSJ-4710CRU -66-...

  • Page 68: Dsj-4720Cru

    All manuals and user guides at all-guides.com EXPLODED VIEW 2) DSJ-4720CRU -67-...
  • Page 69 All manuals and user guides at all-guides.com...

This manual is also suitable for:

Dsj-4720cru

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