Proview PZ456 Service Manual

Summary of PZ456

  • Page 1

    Pz456 service manual.

  • Page 2: Table of Contents

    Table of contents service warning ··········································································· 1 a. Important safety instruction ··········································· 1 b. Specifications ·········································································· 2 c. Timing chart...

  • Page 3: Warning

    Warning to prevent from fire or shock hazard,do notexpose 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...

  • Page 4: B. Specifications

    B. Specifications 1. Maximum resolution 1024 x 768 @ 75hz 2. Recommend resolution 1024 x 768 @ 60hz 3. Synchronization range horizontal vertical 31 – 60 khz 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. Support display colors 262k color 7. Contrast...

  • Page 5: C.Timing Chart

    C.Timing chart video back porch active display front porch sync. Sync-width total preset modes vga 720x400 vga 640x480 vesa 640x480 vesa 640x480 vesa 800x600 vesa 800x600 pixel clock (mhz) 28.325 25.175 31.500 31.500 36.000 40.000 h-frequency (khz) 31.472 31.469 37.861 37.500 35.156 37.879 h-total (...

  • Page 6

    Preset modes vesa 800x600 vesa 800x600 vesa 1024x768 vesa 1024x768 vesa 1024x768 pixel clock (mhz) 50.000 49.500 65.000 75.000 78.750 h-frequency (khz) 48.077 46.875 48.363 56.476 60.023 h-total (µs) 20.800 21.333 20.677 17.707 16.660 h-active display (µs) 16.000 16.162 15.754 13.563 13.003 h-blanki...

  • Page 7: D. 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: E. Conduction View

    E. Conduction view main board (component side).

  • Page 9

    Main board (solid side).

  • Page 10: F. Adjustment Procedure

    F. Adjustment procedure item program menu. ﹟test meter ﹡test point ﹫pattern operation check value a b+ check ﹟digital voltmeter ﹡cn7 ﹫crosshatch pattern (31.5khz,640x480) 1. Plug power cable into the adapter, check adapter power indicator light up green. 2. Make sure the voltage of the power plug ( ...

  • Page 11

    G. Trouble shooting hints no no yes yes yes yes no no high voltage ! No yes yes no no yes no display ( black ) led on ? Push the power on/off switch led color change ? Check main board u3/pin141 hi / lo under push power sw? Back light on? To step 2 make sure the connection of inverter is fine +12v ?...

  • Page 12

    No yes yes no yes no b hi / lo under push power sw? Change the inverter display ? Ok ! To step 2 a check the connection of cn1 cable display ? Ok ! Change the main board change the main board.

  • Page 13

    No yes no yes yes yes yes no no yes step 2 check the main board 12v ? +5.0 v ? Check u10 h/v input signal ? Check the main board u3 v dc2v ? Change u3 check h/v signal display ? Ok ! Change signal cable check f1,d3 check u13.

  • Page 14

    No yes no yes no yes yes no no yes no display (white) check the main board 5v ? +3.3v ? H/v input signal ? Check the main board u3/pin30 ? Change u3 check h/v signal display ? Ok ! Change signal cable check u10 check u12 check 3.3v circuit.

  • Page 15: H. Replacement Parts List

    H. Replacement parts list pz456 no parts no. Description part location q’ty 1 002-u00-pz456 user manual 1 2 003-h03-all9 all ict ok lbl 8*8mm(white) 1 3 003-h03-lcd lbl 13.5*8mm 1 4 005-000-45pr pz456 proview ctn 1 5 123-004-pz456 pz456 frame toshiba-ltm14c500z-11 panel) t=0.8mm 1 6 123-002-pz456-b ...

  • Page 16

    40 382-472-035064 x7r 4700pf/50v +-10% 0603 smd c21,c24,c25 3 41 385-104-032584 y5v 0.1u/25v +80%-20% 0603 c15,c16,c20,c28,c30,c42,c48,c49,c50,c51,c52, c53,c54,c55,c56,c57,c58,c59,c60,c61,c62,c63, c79,c81,c83,c91,c93,c98,c110,c118,c133,c134, c135,c136,c137,c138,c139,c111,c1,c19,c33, c142,c143, 43 42...

  • Page 17

    82 103-005-3033 screw f3*5mm iso zi3c 1 83 100-008-3033 r 3*8 iso 2 84 126-045-alp1 aluminum foil l75*w45mm 1 85 121-003-pz456 pz-456 base lock(t=0.5mm)sus301 1 86 100-004-2032 screw r2.0*l4.0mm iso 1 87 003-h01-lcd lcd cpu lbl 15mmx15mm 1 88 154-005-pz456 pz456 mylar sheet pvc t=0.2mm58*28 1 89 107...

  • Page 18

    I. Block diagram orion b block diagram b 1 1 tuesday, october 23, 2001 title size document number rev date: sheet of hsync vsync d-de blk-on/off sda brightness ddc-scl ddc-sda scl power adapter 12v switch power supply and 3v 5v 12v c o n n e n t vga-in 12pin d.D.C 24c21 eeprom adc scaler lvds lvds m...

  • Page 19

    J. Schematic diagram mvp3-sch-001 1.0 vga input 1 8 wednesday, may 21, 2003 mrt, inc. Title size document number rev date: sheet of vdd vcc vdd gnd vdd vdd vdd vdd vdd gnd dc_vin green- 2 hsync 2 blue- 2 red+ 2 red- 2 green+ 2 blue+ 2 vsync 2 dd_scl 3 dd_sda 3 $$$1 3 vga_vsync ddc_scl ddc_scl green ...

  • Page 20

    Mvp3-sch-001 1.0 mvp3 2 8 wednesday, may 21, 2003 mrt, inc. Title size document number rev date: sheet of vdd2v vdd vdd vdd vdd vdd vaa2v vdc2v vdc2v vaa3v vaa3rgb vdd3v vaa2v bl-on0 6 red- 1 scl 3 vsync 1 vddctrl 4 blue+ 1 green- 1 d-hsync 4 red+ 1 d-de2 4 irq- 3 ob[0..23] 4 hfs 3 d-shclk2 4 hsync ...

  • Page 21

    Mvp3-sch-001 1.0 mcu 3 8 wednesday, may 21, 2003 mrt, inc. Title size document number rev date: sheet of vcc vcc vcc vcc vcc vcc vdd vdd vdd vcc vcc vcc sda 2 dd_scl 1 irq- 2 scl 2 hfs 2 dd_sda 1 aud_off 8 mv_reset 2 mv_reset 2 $$$1 1 down led_o led_o sda cn3-6 led_green clk dd_sda cn3-4 dd_sda led_...

  • Page 22

    Mvp3-sch-001 1.0 power supply 5 8 wednesday, may 21, 2003 mrt, inc. Title size document number rev date: sheet of vdd vcc vdd2v vaa2v vdc2v vaa3v vaa3rgb vdd3v vcc +12v dc_vin vcc +5v dc_vin ll1 c4426-060128yb c50 0.1uf c57 0.1uf u12 aic1084-33cm to263 3 2 1 4 in out c out1 c60 0.1uf ec38 220uf/16v ...

  • Page 23

    Mvp3-sch-001 1.0 misc & decap 6 8 wednesday, may 21, 2003 mrt, inc. Title size document number rev date: sheet of gnd vcc vcc vdd +12v vdd2v vaa2v vdc2v vaa3v vaa3rgb vdd3v gnd gnd gnd gnd gnd gnd +5v bl-on0 2 blk-adj 2 inv_bright_ctl inv_on_off inv_bright_ctl bl-on0 inv_on_off inv_bright_ctl inv_on...

  • Page 24

    A custom 8 8 wednesday, may 21, 2003 title size document number rev date: sheet of vcc vcc vcc vcc gnd gnd gnd aud_off 3 audio-adj 2 left_outp vcc_au right_outp right_outp aud4835_dcvol left_outp aud4835_sd right_outm left_outm left_outm right_outm aud4835_dcvol leftin rightin jp5 base2-180° 1 2 jp6...

  • Page 25

    Memu.