Sanyo LCD-42XR9DKH Service Manual

3Alignment instructions1. Test equipmentVG-848 (YPbPr,VGA signal generator)VG-849 (HDMI signal generator)CA210 (white balance equipment)2. Alignment flow2.1 Voltage of power supply testAccording to the wiring diagram specified by product specification, connect power board, digitalboard, IR/key board and backlight board correctly; then power on and press key to turn on theunit.a) Test each pin voltage of 13-pin power socket in turn listed as Table 1. (X601 for below 26’’ andX501 for 26’’ and above)Table 1 Voltage of 13-pin power socket each pinPin 1 2 3 4、5 6、7 8 9 10 11 12 13Voltage ≥2.5V ≥2.5V 0 12 V±5% 0 N.C. 5 V±5% 0 5 V±5% 0 ≥2.5Vb) Test each pin voltage of 5-pin power socket in turn listed as Table 2. (X501 for 26’’ and above)Table 2 Voltage of 5-pin power socket each pinPin 1, 2 3, 4, 5Voltage 24V±5% 02.2 Adjustment flow chart shown as Fig.1Check if EDID, HDCP KEY and FLASH have been burned.Combination adjustment for general assemblyWhite balance adjustmentConnect to central signal source, check if TV functions are normal–omitted channel, analog parameters control, etc; check if output ofearphone and speaker is normal.Input AV or Y/C signal，check if every function is normal.