User manual MITSUBISHI DPRO2070SB-BK SERVICE MANUAL

[. . . ] 599910644 SERVICE MANUAL CRT DISPLAY DPro2070SB / DPro2070SB-BK (C22BW711) Southern Hemisphere Version The First Edition NEC-MITSUBISHI ELECTRIC VISUAL SYSTEMS CORPORATION FEBRUARY 2003 Contents 1. Circuit description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1. 1 Power block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1. 1. 1 Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] The red moves to the left side of the green. Elongates the lower section of the screen. The both side of the screen will be reddish. Increases the moire value. The red moves to the right side of the green. Elongates the upper section of the screen. The both side of the screen will be bluish. Group5 GLOBAL SYNC (TR) GLOBAL SYNC (BL) GLOBAL SYNC (BR) GLOBAL SYNC (L / R) RESET LANGUAGE OSM POSITION OSM TURN OFF OSM LOCK OUT IPM OFF MODE Restore to factory preset level with RESET button. Turns ON (+: SELECT key) OFF BACK OFF Restores all items to the factory preset level. TL Reduces the time. N/A ON FRONT ON N/A Group 6 EDGE LOCK HOT KEY FACTORY PRESET RESET DISPLAY MODE MONITOR INFO REFRESH NOTIFIER Restore to factory preset level with RESET button. N/A N/A ON N/A N/A OFF Group 7 RESET Restore to factory preset level with RESET button. * Reset: Select an adjustment item and press the RESET key, then, it restores to factory preset level. 1. 8. 3 Factory mode This mod can adjust all of items, and also change the factory default adjustment data (reset data). 1. 8. 3. 1 How to entering to Factory mode The setting of the factory mode is executed by the following procedures. (1) Power ON with EXIT button pressed, and confirm that the following OSM picture appears. H2 - O W - 01 FACT DATA (3) (4) (5) (6) Press (-) button once to set the data value to 255. Press (+) button to set the data value to 5. Press SELECT button to move to the factory mode. As shown below, the adjustment data (hexadecimal number) and the adjustment group of FAC1, FAC2 and FAC3. 1. 8. 3. 2 How to cancel Factory mode Follow the procedure below to cancel the factory mode: (1) Using the (>) button, select the FAC3 group, and then press the (>) button again. H2 - O W - 01 FACT DATA (2) Press the (+) or (-) button to set the data value to '10'. 1. 8. 3. 3 How to enter FACTORY-HV mode Follow the procedure below to enter the FACTORY-HV mode: (1) Using the (>) button, select the FAC3 group, and then press the (>) button again. H2 - O W - 01 FACT DATA (2) Press the (-) button to set the data value to '250'. (3) Press the (SELECT) key to enter the FACTORY-HV mode. (4) Press the (>) or (<) button. The FACTORY-HV mode will be canceled. 2. Adjustment procedure 2. 1 Measuring instruments (1) Signal generator A: Astro Design VG-812 or equivalent (2) Signal generator B: Astro Design VG-829 or equivalent (3) DC voltmeter: 150V 0. 5 Class or digital voltmeter (4) High voltage meter: 0. 5 Class that can measure 40KV (5) Luminance meter: Minolta color analyzer CA-100 or equivalent (6) AC voltmeter: 150V/300V 0. 5 Class or equivalent (7) Oscilloscope: Scope with band of 100MHz or more (8) Landing measuring device: Felmo product (9) Double scale: For width and distortion measurement (10)Withstand voltage meter: Kikusui Model TOS8650 or equivalent (11)Grounding conductivity measuring instrument: CLARE U. K. product (12)Convergence meter: MINOLTA CC-100 2. 2 Preparatory inspections (1) There must be no cracks or remarkable contamination on the PWB. (2) There must be no remarkable lifting or inclination of the parts on the PWB, and the parts must not be touching. [. . . ] Removal Instruction for Back Cover (1) The screws of the two places of the lower parts of the Back Cover are removed. (2) Two hooks of the front lower part of Back Cover is pressed down, and the lower part of Back Cover is removed. A The A section is pushed pressing down hook of this portion. (Right and left are simultaneously) Hook (3) Hooks are removed by considering the penetration hole (three places) of the front upper part of Back Cover as a mark, inserting a jig from the direction of an end. and pushing in a jig downward. Penetration hole Penetration hole <3 places> 6-3 Screw <left and right 2 places> (4) If one hook part place of an end is removed, the others are depressed with a jig to remove hooks simultaneously and also Back Cover is pulled back to remove. 6-4 ALL PARTS LIST MODEL: Diamond Pro 2070SB-BK(R) LOCATION ***CAPACITOR*** C100 C111 C120 C127 C135 C153 C154 C155 C1A1 C1A2 C1A4 C1A5 C1A6 C1A7 C1A8 C1A9 C1B1 C1B2 C1B6 C1B7 C1C3 C1C7 C1C9 C1D0 C1D1 C1D3 C1D4 C1D5 C1D6 C1E0 C1E1 C1E5 C1E6 C1E7 C1E8 C1E9 C203H C205S C210B C210G C210R C212B C212G C212R C215B C215G C215R C220B C220G C220R C221B C221G C221R C222B C222G C222R C240B C240G C240R C250B C250G C250R C251B C251G C251R C260 C261 C262 C264 C265 C266 C271 C274 PART No. [. . . ]