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Proview P6NS Series Service Manual

Proview monitor service manual
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P6NS SERIES

Service Manual

PROVIEW ELECTRONICS CO.,LTD
6F,No.1,Pau-Sheng Road,Yung-Ho City,Taipei 234,Taiwan
1 1

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Summary of Contents for Proview P6NS Series

  • Page 1: Service Manual

    P6NS SERIES Service Manual PROVIEW ELECTRONICS CO.,LTD 6F,No.1,Pau-Sheng Road,Yung-Ho City,Taipei 234,Taiwan...

  • Page 2: Table Of Contents

    Tel : (886-2) 2231-6789 , Fax :(886-2) 2231-5678 TABLE OF CONTENTS S E R V I C E W A R N I N G A. I M P O R T A N T S A F E T Y I N S T R U C T I O N B.

  • Page 3: Important Safety Instruction

    Contact the local dealer or the nearest PROVIEW branch office if you need help. A. IMPORTANT SAFETY INSTRUCTION Prior to using this service manual,please ensure that you have carefully followed all the procedures outlined in the user's manual for this product.
  • Page 4 For Model 786NS,986NS Series WARNING : This product included critical components which are essential for X-Radiation safety. See service manual for proper replacement.Maximum 2nd anode voltage must not exceed 30KV at any operating conditions. To measure 2nd voltage use high impedance meter connect (-) chassis, use a high voltage lead from (+) to 2nd anode.

  • Page 5: Specifications

    1. Screen 2. Visible Image Area 3. Active Display Area 4. Synchronization Range Horizontal Vertical 5. Power Source 6. Power Consumption 7. Input Signal Video Sync. 8. Connection Type 9. Resolution 10. Color Temperature 11. Dimension (W×H×D) 12. Monitor Weight 13.
  • Page 6 1. Screen 2. Visible Image Area 3. Active Display Area 4. Synchronization Range Horizontal Vertical 5. Power Source 6. Power Consumption 7. Input Signal Video Sync. 8. Connection Type 9. Resolution 10. Color Temperature 11. Dimension (W×H×D) 12. Monitor Weight 13.
  • Page 7 1. Screen 2. Visible Image Area 3. Active Display Area 4. Synchronization Range Horizontal Vertical 5. Power Source 6. Power Consumption 7. Input Signal Video Sync. 8. Connection Type 9. Resolution 10. Color Temperature 11. Dimension (W×H×D) 12. Monitor Weight 13.

  • Page 8: Timing Chart

    VESA Preset Modes × × × Dot Rate 25.175 28.322 40.000 (MHz) 31.469 31.469 37.879 (KHz) A- Period 31.778 31.778 26.400 (uS) B- Active 25.422 25.422 20.000 (uS) C- Sync 3.813 3.813 3.200 (uS) D-Back 1.907 1.907 2.200 Porch (uS) E-Front 0.318 0.318...

  • Page 9: Control Location

    D. CONTROL LOCATION Font control panel One key type a. Power Switch b. Power Indicator c.Encoder d. Enhance Key Four key type a. Power Switch b. Power Indicator c. Exit d. ＋Adjust e. －Adjust f. Menu...

  • Page 10: Adjustment Control Location

    E. ADJUSTMENT CONTROL LOCATION IC601 IC901 VR501 L705 Q703 T501 C504 Q504 F501...

  • Page 11: Adjustment Procedure

    F. ADJUSTMENT PROCEDURE ﹟ Test Meter ITEM ﹡ Test Point Program Menu. ﹫ Pattern ﹟ Digital Voltmeter Adjust ﹡ D510 Negative ﹫ Crosshatch Pattern (31.5KHz,640x480) High Voltage ﹟ Digital Voltmeter Adjust ﹟ High Voltage Probe ﹡ Anode Cap-GND ﹫ Crosshatch Pattern (31.5KHz,640x480) Preset ﹫...
  • Page 12 ABL on the OSD menu. 1. Set the FREQ. to 55 (562NS) (777NS,772NS,572NS) (786NS,787NS,986NS) 2. Set the OSD to PROVIEW 3. Set the BURN to Disable 4. Set the TIME to 15 5. Set the DEFO to TDA9113/9112 TDA9115...
  • Page 13 ﹟ Test Meter ITEM ﹡ Test Point Program Menu. ﹫ Pattern Dynamic ﹟ Oscilloscope Focus ﹡ FBT Pin14 Adjust ﹫ Full White (31.5KHz,640x480) Purity ﹫ Magenta color Adjust (31.5KHz,640x480) Static ﹫ Magenta color Convergence (31.5KHz,640x480) Adjust Operation 1. Set the contrast to MAX.,and adjustment Brightness to the raster just appear.

  • Page 16: Block Diagram

    G. BLOCK DIAGRAM 16 16...
  • Page 17 17 17...
  • Page 18 18 18...
  • Page 19 19 19...
  • Page 20 20 20...

  • Page 22: Trouble Shooting Hints

    H. TROUBLE SHOOTING HINTS BRIGHT HOR. LINE APPEAR ON THE SCREEN NO POWER T501 (7) F501,D514 , 160 V ? D515,D516, D517 IC501 (7) ＞ 14 V ? IC501(6) 14Vp-p ? D510 (-) 15.5V ? CIRCUIT SHORT CHECK CHECK IC501,R539, D505,ZD551 CHECK IC501,Q504...
  • Page 23 IC301 (2) CHECK LINE 12 V ? IC301 (4) CHECK -12V LINE -12 V ? IC301 (1) CHECK IC601 0.7 V IC301 (5) CHECK IC301 48 V CHECK CRT DY...
  • Page 24 RASTER CRT G1 Q710 (E) -20V~ -80V ? -0.6V ? HEATER CHECK VOLT B+ VOLT 6.3 V ? 7.2 V ? CHECK Deflection Horizontal 26KV ? CRT G2 CHECK 600V ? T701 FBT VIDEO CKT KR,KG,KB FAILURE VOLTAGE CHECK CRT TUBE IC901(4) -1.5V~-1.8V CHECK...
  • Page 25 DEFLECTIVE HOR. CKT Q703 (C) 1.0 ~ 1.2 NO RASTER Q703 (B) DRIVE PULSE Q702 (G) DRIVE PULSE CHECK IC601 CHECK 15V LINE 986N:T701(3) Voltage for each mode T701(3) B+ 31.5KHz 37KHz 48KHz 54KHz 104V 56KHz 111V 64KHz 127V 68KHz 139V 75KHz 153V...
  • Page 26 OFF MODE NO ROTATION FAILURE IC901(40) CHECK (41) H/V SIGNAL IC901(20) CHECK PS 0 0 V ? Q505 (C) CHECK 7.0 V ? CHECK CHECK Q511 (B) 0 V ? CHECK Q511 VESA STANDARD DPMS ITEM MODE NORMAL STAND BY SUSPEND IC901 IC901 PIN40,PIN41 SIGNAL.
  • Page 27 P903 CHECK OK ? Rotation Coil Q902 (c) CHECK 15 V ? 15V LINE R979 CHECK 7 V ? 7V LINE Q902 (B) CHECK Q903 (B) Q902 1.5~13V ? Q903 Q904 (B) CHECK 0~2.5V ? IC901 CHECK Q904...
  • Page 28 NO CHARACTERS OSD DOES NOT MISSING ONE WORK Example:Missing Green COLOR CRT KG RASTER IC203 (3) 39 V IC203 12 V ? IC201 (10) 5 V ? IC201 (7) CHECK I/P 0.7V IC201 (19) 0.4 V ? CHECK IC201 CHECK IC203 CHECK CHECK...

  • Page 29: Replacement Parts List

    Example : Missing Green Condition : OSD on IC201 (19) IC201(24) OSD G 7V ? IC202 (3) CHECK M703 BLK ? IC202(6) CHECK 4.2V CHECK D203 I. REPLACEMENT PARTS LIST CHECK IC201...
  • Page 30 986NS/787NS/786NS/777NS/772NS/572NS/562NS Spare Parts List Location. R631 R734 (986NS,787NS,786NS,772NS) (572NS,562NS) R762 R7A2 R612,611,663,912,918,926,927,976 R977 R205,235,265,281,284,285,516,664 R711A,918A,942,943,952,953,982 R984,985 R703 (986NS,787NS,786NS) (772NS) R736 (986NS,787NS,786NS,72NS) (572NS,562NS) R735 (772NS) (572NS,562NS) R525,740,754,7A8 R210,240,270,533,546,626,755,793 R974,993 R991 (986NS,787NS,786NS) (772NS) R529,536,610,983 R288,291,510,590, 606,615, 630, 651 R730,931,947 R710 (986NS,786NS) (787NS,572NS,562NS) (772NS) R724 ( 986NS,787NS,786NS,772NS,572NS...
  • Page 31 (786NS) (777NS,572NS,562NS) R303 R666 (986NS) (787NS,786NS,772NS) (572NS,562NS) R768 (986NS,787NS,786NS 772NS) (572NS,562NS) R761 (986NS) (787NS,772NS) R602 R608 R515,589 R614 R797A R914 R629 (986NS,787NS,786NS,772NS) (572NS,562NS) R307,732 R715 (772NS) (572NS) R2A7 R207,237,267, R534 R205,235.265,910,911 R741 R706,708 (986NS,787NS,786NS) (772NS) R535,654,728 R667 (986NS,787NS,786NS,772NS) (572NS,562NS) R723 ( 986NS,787NS,786NS,772NS 572NS 562NS...
  • Page 32 R979 R7A6 R674 (777NS,772NS) (572NS,562NS) R601,665 R604 (986NS,787NS,786NS,772NS) (572NS,562NS) R707 (986NS,787NS,786NS) (772NS) R603 R588 R7A7 R733 (986NS,787NS,786NS,772NS) (572NS,562NS) R207,237,267 R724,730 R544 R287 R765 R7A3,928 R615 ( 986NS 787NS,786NS,772NS,572NS,562NS R588 R712 R202,232,262,551,726,729 L200,L230,L260 R726 ( 986NS,787NS,786NS,772NS,572NS (562NS) R908 (986NS,787NS,786NS,772NS) (572NS,562NS) R771 (986NS,787NS,786NS,772NS) (572NS,562NS) R509,532,617,618, 903 R980 (986NS,787NS,786NS,772NS)
  • Page 33 R501 R7B4 (986NS,787NS,786NS) (772NS) R206,236,266,2A2 R739,760 R2A6 R905 R920 R334 R290.292.294.295 R604 (986NS,787NS,786NS) (772NS) R668 R292 R738 (986NS,786NS,772NS) (787NS) (572NS,562NS) R520 R791 R746 (986NS,787NS,786NS,772NS) (572NS,562NS) R588 R744 (986NS,787NS,786NS,772NS) (572NS,562NS) R201.231.261 R981 R652 (986NS,787NS,786NS,772NS) (572NS,562NS) R766 (986NS,772NS,572NS,562NS) (787NS) (786NS) R616 R605 (986NS,787NS,786NS,772NS) (572NS,562NS) R539 R703A...
  • Page 34 RP901 NTC501 (986NS,786NS,787NS) (772NS,572NS,562NS) PTC501 R711 (986NS,787NS,786NS) (772NS) (562NS) R704 (986NS) (787NS) R777 R513 R714 (986NS) (787NS,786NS) (772NS) (572NS) R623 R528 R503 R705 (986NS,787NS,786NS) (772NS) R609 (986NS,787NS,786NS) (772NS) (572NS,562NS) R749 R747 R752 R751 (986NS,787NS,786NS) (772NS) R302 R753 (986NS) (787NS,772NS,572NS,562NS) (786NS) R748 R613 R333...
  • Page 35 R781 (986NS,787NS,786NS) (772NS) R780 (986NS,787NS,786NS) (772NS) R794 (986NS,787NS,786NS) (772NS) R701,702 ( 986NS,787NS,786NS772NS (572NS,562NS) R661 (772NS) (572NS,562NS) R662 (772NS) (572NS,562NS) C935,948 C949 (986NS,787NS,786NS) (772NS) C750 (986NS,787NS,786NS) (772NS) C205,235,265 C922 C270,274,582,704,907 C725 (986NS,787NS,786NS,772NS) (572NS,562NS) C275,276,278 C722 C505,507,527,601 C523 C325,703 C525 C323,520 C206,236,266 C716 C623,742 C520...
  • Page 36 C744 C501,519,305 C701 R545 C609 C292,626,627,628,629,905,906,914 C915,916,917 C518,618A,771,740A C2A2 C602,778,779 C277,2A7,506,515,528,746,747 C714 (986NS,787NS,786NS,772NS) (572NS,562NS) C603,622 C614 C517,551,552,733 C718 (986NS,787NS,786NS,772NS) (572NS,562NS) C294 C550,625,705 C776 (986NS,787NS,786NS,772NS) (572NS,562NS) C726 C618 C515 C2A9 C509,751,752 C748,749,912,911 C526,741 C780 ( 986NS 787NS,786NS,772NS,772NS,572NS,562NS C2A3 C583 C617 ( 986NS 787NS,786NS,772NS,572NS,562NS C740...
  • Page 37 772NS,572NS C620,790 C710 (986NS,786NS) (787NS) (772NS) (572NS) (562NS) C716 C717 (986NS,786NS,772NS) (787NS,777NS) (572NS,562NS) C709 (986NS,786NS) (787NS) (777NS,772NS) (572NS) (562NS) C731 (986NS,787NS) (786NS) (772NS) C508,524 C502,503,555 C540,541 (986NS,772NS) (787NS,786NS) C619 C611 C310,608,721 C620,790 C727 C793 C605 C307 C606 C309 (986NS,787NS,786NS) (772NS,572NS,562NS) C719,720 (986NS,787NS,786NS) (772NS) (572NS,562NS)
  • Page 38 C 908,909,920,921,902A,902B,724 C702,730 (986NS,787NS,786NS) (772NS) SW902,903 SW901 SW501 RL501 RL701 ( 986NS,787NS,786NS 772NS JK302 JK301 IC902 Socket CRT SOCKET (17”) (15”) P501 (986NS,787NS,786NS,772NS) (572NS,562NS) SG281 IC902 IC901 IC201 IC202 IC203 IC203 Heat Sink ( 986NS,787NS,786NS 772NS,572NS,562NS IC301 IC301 Heat Sink ( 986NS,787NS,786NS 772NS,572NS,562NS Silicon Rubber...
  • Page 39 562NS Q726 Q501 Q701 (986NS,787NS,786NS) (772NS) Q713 (986NS,787NS,786NS,772NS) (572NS,562NS) Q504 Q504 Heat Sink(986NS,787NS,786NS) (772NS) Q717 Silicon Rubber Shoulder Washers Q703 (986NS,787NS,786NS) (772NS) (572NS,562NS) Q703 Heat Sink(986NS,787NS,786NS) (772NS) Q707 (986NS,787NS,786NS) (772NS,572NS) (562NS) Q719,709 Q709 Heat Sink 986NS,787NS,786NS,562NS 772NS,572NS LED901 D304 D201,231,261,202,232,262,203,233 D263,503,507,518,532,601,602,603 D604,606,610,611,711A,713,714,716 D720,725,752,753, 901,902,904...
  • Page 40 ZD551 ZD502 ZD501 D205.235.265 D501 D513 D508 D514,515,516,517 D502,510 D719 D509 D509 Heat Sink ( 986NS,787NS,786NS 772NS,572NS D710 (986NS,787NS,786NS) (772NS) D710 Heat Sink 986NS,787NS,786NS,562NS 772NS,572NS D709 (986NS,787NS,786NS) (772NS) D705 X901 F501 FUSE CLIP Wire P502 P701 P281,505,TCO P601 P301,901 P902 P903 (986NS,787NS,777NS) (786NS,772NS) P905...
  • Page 41 T703 (986NS,787NS,786NS,772NS) (572NS,562NS) T501 T702 T701 (986NS,787NS,786NS) (772NS) (572NS) (562NS) Degaussing Coil (986NS) (787NS,72NS) (572NS,562NS) Roation Coil (986NS,787NS) (786NS,772NS) (572NS,562NS) L200.260 L230,201,231,261 L705 (772NS)) (572NS) (562NS) L703 (986NS,787NS,786NS) (772NS) L704 L502 L503 B280,284,B283,L706,701,511,515, L900,R585,Q504(G) L506,507,508,509,510,512,701 L703A Ring Core (772NS) (572NS,562NS) Ground Wire (986NS) (787NS) (772NS)

  • Page 42: Conduction View

    J. CONDUCTION VIEW MAIN BOARD (Component Side)
  • Page 43 MAIN BOARD (Soild Side)

  • Page 44: Schematic Diagram

    K. SCHEMATIC DIAGRAM...

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