Service manual

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PZ456

Service Manual

Summary of content (25 pages)

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PZ456 Service Manual
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TABLE OF CONTENTS SERVICE WARNING ··········································································· ··········································· 1 ·········································································· 2 ············································································· 3 A. IMPORTANT SAFETY INSTRUCTION B. SPECIFICATIONS C.
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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. 1.
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B. SPECIFICATIONS 1024 x 768 @ 75Hz 1024 x 768 @ 60Hz 1. Maximum Resolution 2. Recommend Resolution 3. Synchronization Range Horizontal Vertical 4. Active Display Area 5. Dot Pitch 6. Support display colors 7. Contrast Ratio (Typical) 8.Luminance of White 9. Bandwidth 10. User Control 11. OSD Function 31 – 60 KHz 60– 75 Hz 285.7mm (H) x 214.3mm (V) 0.279(H) x 0.
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C.TIMING CHART Video Back porch Active display Front porch Sync. Sync-width Total VESA VESA 800X600 800X600 36.000 40.000 37.500 35.156 37.879 26.413 26.667 28.444 26.400 25.422 20.317 20.317 22.222 20.000 6.355 6.356 6.095 6.349 6.222 6.400 (µs) 0.635 0.636 0.762 0.508 0.667 1.000 H-Sync-width (µs) 3.813 3.813 1.270 2.032 2.000 3.200 H-Back Porch (µs) 1.906 1.907 4.063 3.810 3.556 2.200 70.1 59.94 72.81 75.0 56.25 60.3 14.267 16.683 13.735 13.
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Preset Modes VESA VESA VESA VESA VESA 800X600 800X600 1024X768 1024X768 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 (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-Blanking (µs) 4.800 5.172 4.923 4.053 3.657 Front Porch (µs) 1.120 0.323 0.369 0.320 0.203 H-Sync-width (µs) 2.400 1.616 2.092 1.813 1.219 H-Back Porch (µs) 1.280 3.
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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.
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E.
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MAIN BOARD (Solid Side)
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F. ADJUSTMENT PROCEDURE ITEM Program Menu. B+ Check A ﹟Test Meter ﹡Test Point ﹫Pattern ﹟Digital Voltmeter ﹡CN7 ﹫Crosshatch Pattern (31.5KHz,640x480) Operation 1. Plug power cable into the adapter, check adapter power indicator light up green. 2. Make sure the voltage of the power plug (CN1) on the main PCB to the value shown at right. Power Saving ﹟Wattmeter Check ﹟PC or Pattern B generator ﹫Crosshatch Pattern (31.5KHz,640x480) 1. Unplug the signal cable into the monitor. 2.
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G.
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A B Check the connection of CN1 cable NO Change the main board Hi / Lo under push power sw? YES Display ? YES NO Change the Inverter OK ! Display ? Change the main board NO To Step 2 YES OK !
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Step 2 Check the main board 12V ? NO Check F1,D3 YES NO Check U10 +5.
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No display (White) Check the main board 5V ? NO Check U10 NO Check U12 YES +3.3V ? YES Check the main board U3/Pin30 ? NO Check 3.
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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 PZ456 METAL COVER SEPT T=0.3 1 7 153-000-PZ456-A PZ456 BACK LBL 1 8 170-000-0848C PE BAG 0.07mm 14*30.
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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 42 385-105-031684 Y5V 1uF/16V +80-20% 0603 C141,C144 2 43 481-LCC-0440 SOCKET 44PIN PLCC U5 1 44 506-0AI-C1084 SMD REG.AIC1084CM 3.
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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 89 107-008-3073 B 3*8 TP4 2 90 111-148-0800 FLAT WASHER 1 SPCC T=1.0 1 91 111-014-0800 FLAT WASHER 2 PVC T=0.5mm 2 92 111-148-0801 FLAT WASHER 3 SUS304 T=0.
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I. BLOCK DIAGRAM VSYNC HSYNC VGA-IN 12PIN C O N N E N T SCALER ADC 8 R0~R7 LVDS 10 EVEN 8 RA0~RA7 LCD PANEL(LVDS) 8 GA0~GA7 3 {R.G.B} 8 G0~G7 8 BA0~BA7 DDC-SDA DDC-SCL 8 B0~B7 D-DE 8 RB0~RB7 D.D.
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J. SCHEMATIC DIAGRAM DC_VIN CN1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 JP2 DC_VIN DDC_SCL DDC_SDA CABLE $$$1 VGA_VSYNC VGA_HSYNC 3 ADD TO R135 BLUE 5 GND L1 RED BE0603-RGB R2 150 1% C2 10nF RED+ R3 GREEN RED PC5V 75 1% C3 R4 150 1% C4 NP 10nF L2 BE0603-RGB R5 150 1% C5 DDC_SCL DDC_SDA RED- 2 GREEN+ 2 GREEN- 2 BLUE+ 2 BLUE- 2 CABLE VGA_VSYNC VGA_HSYNC BLUE GREEN RED PC5V JST2.0-13PIN-180° JST2.
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VDD CONFIG1 VDD R29 1K CONFIG2 R31 10K CONFIG3 CONFIG0 R26 NP R27 10K R28 NP R30 10K 修改4_B MV_RESET SDA 3 HFS 3 IRQ- 33 R37 33 R32 10K R33 NP R34 22 R35 22 CFG[1:0] 0 0 -> I2C 0 1 -> SPI 1 0 -> 6-WIRE CFG[3:2] BLK-ADJ 4 VDDCTRL 4 VDD VDC2V OA[0..
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C141 1uF VCC R129 NP MV_RESET ADD R135 0422 2 Q6 2N3906 RESET 3 2 2 VCC C 3 + X1 R50 11.0592MHz 1M 35 CLK C29 22pF 1 2 3 4 5 6 7 8 R56 33 Power R63 R66 R68 R69 33 33 33 33 DOWN UP MENU AUTO 2 21 20 RESET CN3-1 LED_O LED_G CN3-4 CN3-5 CN3-6 CN3-7 C28 0.1uF 10 IRQ- IRQ- 14 15 16 17 AUTO MENU UP DOWN Power P1_5 CN3-1 CN3-4 CN3-5 CN3-6 CN3-7 C133 0.1uF C136 0.1uF C137 0.1uF C138 0.1uF C139 0.1uF SDA SCL U5 EA/VP X1 X2 SOCKET PLCC44 RESET P0.0 P0.1 P0.2 P0.3 P0.4 P0.
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JUMP1 O 4 I 3 O 2 G 1 VCC U12 AIC1084-33CM 47uF/16V OUT EC14 C55 47uF/16V 0.1uF TO263 OUT1 L17 2 L16 VAA3V VDC2V 4 C56 C54 1 EC22 IN C 3 0.1uF 0.1uF LT1117CST-2.5 L19 VAA3RGB O G 0.1uF L20 U13 C60 2 L18 VAA2V 3 I O C58 3 VIN VOUT TAB 2 4 VDD2V 0.1uF EC20 C61 C62 1 0.1uF 0.1uF LT1117CST-2.5&ADJ ADJ C59 47uF/16V 1 VCC VDD3V EC18 4 SOT-223 C57 R126 120_1% VDD C63 EC23 0.1uF 220uF/16V DC_VIN GND LL1 C4426-060128YB C48 0.
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VDD3V VDD2V VAA2V C70 C64 C66 C72 VAA3V H1 C73 VAA3RGB C68 EC2 22uF/16V 1000pF 1000pF 1000pF 1000pF H2 1000pF VDD C78 C79 C80 C81 C82 C83 C84 C90 0.1uF C91 C92 C93 VDC2V H3 1000pF 0.1uF 1000pF 0.1uF 1000pF 0.1uF 1000pF 1000pF 0.1uF 1000pF 0.1uF H4 VCC EVERY POWER PIN OF MASCOT NEEDS A PAIR OF CAPACITORS R86 R87 INV_BRIGHT_CTL 4.7K 3 Q3 2 1 2 BLK-ADJ R88 4.7K 2N3904 +12V 1K S1 L22 EC24 22uF/16V 0.
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1 C124 VCC 2 VCC MODE VCC OP VOL R109 2 47uF/16V VCC_AU BE0805 R112 NP C125 0.1uF R110 R111 20K 33K 5/18 追加 C126 0.1uF BASE2-180° 1 2 18 19 27 VDD 6 20K Lift Gain2 5 Lift Gain1 Mute Hi is Mute Mode VDD 4 VDD 5 4 3 2 1 16 R113 U21 17 DEL L15 DEL L17 DEL C134 DEL R86 BASE2S Left_outp L-OUT 1 2 Left_Outm Lift out - L-OUT JP5 C127 0.
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Memu