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SDM-HS74/HS74P US Model SERVICE MANUAL Canadian Model AEP Model Chinese Model TFT LCD COLOR COMPUTER DISPLAY...
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Main destination SDM-HS74 WHITE 1,240,001-1,270,000 1,270,001-1,290,000 SDM-HS74 BLUE 1,290,001-1,320,000 1,320,001-1,340,000 SDM-HS74 BLACK 1,340,001-1,480,000 1,480,001-1,560,000 HS74P LGE Model name Colour Main destination SDM-HS74P BLACK 1,260,001-1,400,000 SDM-HS74P SILVER 6,200,001-6,400,000 SDM-HS74P BLACK 9,940,001-9,960,000 SDM-HS74P SILVER 6,000,001-6,200,000 SDM-HS74P SILVER 6,600,001-6,630,000 – 2 – SDM-HS74/HS74P (E)
T. M. D. S. Data1/3 Shield T. M. D. S. Data3- T. M. D. S. Data3+ +5V Power Ground (return for +5V, H. Sync. and V. Sync.) T. M. D. S. (Transition Minimized Differential Signaling) – 4 – SDM-HS74/HS74P (E)
• If the surface of panel become dirty, please wipe it off with a softmaterial. (Cleaning with a dirty or rough cloth may damage the panel.) CAUTION Please use only a plastic screwdriver to protect yourself from shock hazard during service operation. – 5 – SDM-HS74/HS74P (E)
DVI Rev.1.0. 8. HD15 (RGB) input connector (analog RGB) This connector inputs analog RGB video signals (0.7 Vp-p, positive) and SYNC signals. DDC (Display Data Channel) is a standard of VESA. 9. Input Select – 7 – SDM-HS74/HS74P (E)
3) Microprocessor (U501) communicates with EEPROM (704), and MST9131A (U201) through IIC or 8 bit bus line. It is enable to control and communicate each devices. 4) Microprocessor (U501) let User adjust screen by OSD function. – 10 – SDM-HS74/HS74P (E)
This part function is to feed back the dc output changing status through a photo transistor to primary controller to achieve the stabilized dc output voltage. 6. Signal collection. This part function is to collect the any change from the dc output and feed back to the primary through photo transistor. – 11 – SDM-HS74/HS74P (E)