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Proview PZ456 Service Manual

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Summary of Contents for Proview PZ456

  • Page 1 PZ456 Service Manual...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS SERVICE WARNING ··········································································· A. IMPORTANT SAFETY INSTRUCTION ··········································· B. SPECIFICATIONS ·········································································· C. TIMING CHART ············································································· D. CONTROL LOCATION ··································································· E. CONDUCTION VIEW ····································································· F. ADJUSTMENT PROCEDURE ·························································· G. TROUBLE SHOOTING HINTS ······················································ H. REPLACEMENT PARTS LIST ······················································· I.

  • Page 3: Service Warning

    To prevent from fire or shock hazard,do not expose monitor to any rain or any form of water.High voltage is inside the monitor so please do not remove the back cover of the cabinet if you are not a qualified monitor engineer.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: Specifications

    B. SPECIFICATIONS 1. Maximum Resolution 1024 x 768 @ 75Hz 2. Recommend Resolution 1024 x 768 @ 60Hz 3. Synchronization Range Horizontal 31 – 60 KHz Vertical 60– 75 Hz 4. Active Display Area 285.7mm (H) x 214.3mm (V) 5. Dot Pitch 0.279(H) x 0.279(V) mm 6.

  • Page 5: Timing Chart

    C.TIMING CHART Video Back porch Active display Front porch Sync. Sync-width Total VESA VESA VESA VESA Preset Modes 720X400 640X480 640X480 640X480 800X600 800X600 Pixel clock 28.325 25.175 31.500 31.500 36.000 40.000 (MHz) H-Frequency 31.472 31.469 37.861 37.500 35.156 37.879 (KHz) 31.774 31.778...
  • Page 6 VESA VESA VESA VESA VESA Preset Modes 800X600 800X600 1024X768 1024X768 1024X768 50.000 49.500 65.000 75.000 78.750 Pixel clock (MHz) 48.077 46.875 48.363 56.476 60.023 H-Frequency (KHz) H-Total (µs) 20.800 21.333 20.677 17.707 16.660 16.000 16.162 15.754 13.563 13.003 H-Active Display (µs) 4.800 5.172 4.923...

  • Page 7: Control Location

    D. CONTROL LOCATION Font control panel 1.Menu Button ( MENU ) 4. Auto Button ( AUTO ) 2.Select Button ( DOWN) 5. Power Button 3.Select Button ( UP) 6. Power indicator Rear panel 1. VGA Signal Cable 2. Power jack...

  • Page 8: Conduction View

    E. CONDUCTION VIEW MAIN BOARD (Component Side)
  • Page 9 MAIN BOARD (Solid Side)

  • Page 10: Adjustment Procedure

    F. ADJUSTMENT PROCEDURE ﹟ Test Meter Check ITEM ﹡ Test Point Operation Value Program Menu. ﹫ Pattern 1. Plug power cable into the adapter, check adapter 12.0V ﹟ Digital Voltmeter power indicator light up green. ±0.2V Check ﹡ CN7 2. Make sure the voltage of the power plug ( ﹫...

  • Page 11: Trouble Shooting Hints

    G. TROUBLE SHOOTING HINTS No Display ( Black ) Change Power LED ON adapter adapter ? Push the power switch ON/OFF LED Color Back light To Step 2 change ? Check main Check the /Pin1 board U3/Pin141 of Inverter High Voltage ! Make sure the Hi / Lo under +12V ?
  • Page 12 Check the connection of Change the Hi / Lo under cable push power main board Display ? Change the Inverter OK ! Display ? OK ! Change the main board To Step 2...
  • Page 13 Step 2 Check the main Check board F1,D3 Check +5.0 V ? Check the main Check board DC2V Change H/V input Signal ? Check H/V Signal Change Display ? Signal Cable OK !
  • Page 14 No display (White) Check the main Check board Check +3.3V ? Check the main Check board U3/Pin30 3.3V Circuit Change H/V Input Signal ? Check H/V Signal Change Display ? Signal Cable OK !

  • Page 15: Replacement Parts List

    ALL ICT OK LBL 8*8MM(white) 003-H03-LCD LBL 13.5*8MM 005-000-45PR PZ456 PROVIEW CTN PZ456 FRAME TOSHIBA-LTM14C500Z-11 PANEL) 123-004-PZ456 T=0.8mm 123-002-PZ456-B PZ456 METAL COVER SEPT T=0.3 153-000-PZ456-A PZ456 BACK LBL 170-000-0848C PE BAG 0.07mm 14*30.5cm 170-001-GW520 PE BAG(All) 170-001-PZ456 PZ-456 protect film 1mm...
  • Page 16 780-103-3000 SMDBEAD SBK160808300Y0603 30Ω 780-104-6010 FB 0805/600ohm 100mHZ L4,L5,L16,L17,L18,L19,L20,L25,L26,L27 780-107-121K50 BEAD 120ohm 1206 5A FBM-11 851-0NM-PZ456-A PZ456 M/B DIP ASS'Y LVDS no AUDI 330-100-16255 5mm EC 10uF 16V 105C M TP MI 4*5 EC1,EC4,EC11,EC24,EC35,EC41 630-006-1008 JWT A2001 PITCH 2.00mm 630-008-C001 JST 1.5mm HEADER ZR S8B-ZR...
  • Page 17 SCREW P4*6 ISO 132-001-PZ456 SPRING WASHER SUS301 T=0.5 123-003-PZ456 PZ456 BASE ARM DIE CASTING AL 123-00L-PZ456-A BASE LEG LEFT DIE CASTING AL 123-00R-PZ456-A BASE LEG RIGHT DIE CASTING AL 155-001-PS576 RUBBER FOOT(NR) 105-006-4033-1 SCREW T4*6mm ISO 631-006-J456 WIRE 6P 2.0-1.25 100mm PZ456 631-008-G020-B PZ4561.5mmPITCH->1.5 dual CORE 135mm...

  • Page 18: Block Diagram

    I. BLOCK DIAGRAM VSYNC HSYNC LVDS LCD PANEL(LVDS) SCALER VGA-IN 10 EVEN 8 RA0~RA7 12PIN 8 R0~R7 8 GA0~GA7 3 {R.G.B} 8 G0~G7 8 BA0~BA7 DDC-SDA DDC-SCL 8 B0~B7 D-DE LVDS 8 RB0~RB7 D.D.C 24C21 8 GB0~GB7 EEPROM CRYSTAL 10 ODD 8 BB0~BB7 HI VOLTAGE 24C16...

  • Page 19: Schematic Diagram

    J. SCHEMATIC DIAGRAM DC_VIN DDC_SCL DDC_SDA DC_VIN CABLE DDC_SCL DDC_SDA VGA_VSYNC CABLE VGA_HSYNC $$$1 VGA_VSYNC ADD TO R135 BLUE VGA_HSYNC BE0603-RGB 150 1% 10nF GREEN RED+ BLUE GREEN PC5V PC5V 75 1% 150 1% 10nF JST2.0-13PIN-180° 5/18 追加 RED- JST2.0-1X16PIN BE0603-RGB 150 1% 10nF...
  • Page 20 CONFIG1 CFG[1:0] CFG[3:2] 0 0 -> I2C CONFIG0 0 1 -> SPI CONFIG2 1 0 -> CONFIG3 6-WIRE 修改4_B BLK-ADJ LCD_VEE_A MV_RESET VDDCTRL BL-ON0 OB[0..23] 4 VDC2V IRQ- OA[0..23] 4 VDC2V CAP_VSYNC DOBVSS BLU_INB_0 BLU_OUTB_7 BLU_INB_1 BLU_OUTB_6 BLU_INB_2 BLU_OUTB_5 BLU_INB_3 BLU_OUTB_4 BLU_INB_4 DOBVDD3V...
  • Page 21 2.LED O(570LEDON G) 3.LED G(568C2ON) ET502 LED/ON 使用藍光LED 4.DOWN- R須改為150甌姆須再測試 5.UP R134 6.MENU MRT, Inc. 7.AUTO LED_G 8.GND Title PROVIEW KEY PAD --OK LED_GREEN 2N3904 Size Document Number MVP3-SCH-001 Date: Sheet Wednesday, May 21, 2003 OB23 OB[0..23] RP13 OB22 OB21...
  • Page 22 JUMP1 AIC1084-33CM VAA3V VDC2V EC22 OUT1 EC14 47uF/16V 47uF/16V 0.1uF TO263 0.1uF 0.1uF LT1117CST-2.5 VAA3RGB SOT-223 VAA2V 0.1uF 0.1uF VDD3V LT1117CST-2.5&ADJ EC18 VOUT VDD2V 47uF/16V 0.1uF 0.1uF EC20 R126 0.1uF 120_1% 47uF/16V 0.1uF 120_1% 修改2 EC23 0.1uF 220uF/16V DC_VIN AMC2576-5 DC_VIN DC_VIN 0.1uF...
  • Page 23 VDD3V VDD2V VAA2V VAA3V VAA3RGB 22uF/16V 1000pF 1000pF 1000pF 1000pF 1000pF 0.1uF VDC2V 1000pF 0.1uF 1000pF 0.1uF 1000pF 0.1uF 1000pF 1000pF 0.1uF 1000pF 0.1uF EVERY POWER PIN OF MASCOT NEEDS A PAIR OF CAPACITORS INV_BRIGHT_CTL 4.7K +12V BLK-ADJ 4.7K 2N3904 EC24 0.1uF 22uF/16V...
  • Page 24 C124 47uF/16V MODE VCC OP VOL VCC_AU R109 MODE GND OP MAX BE0805 R110 R111 R112 C125 C126 5/18 追加 0.1uF 0.1uF BASE2-180° DEL L15 L-OUT DEL L17 R113 SCJ-0356M5(B) DEL C134 C127 0.0068UF DEL R86 Mode BASE2S DEL R89 Left_outp L-OUT Mute Hi is Mute...
  • Page 25 Memu...

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