Sanyo Sanyo DP50740 P50740-00 J4FK [SM] free download

File name Sanyo_DP50740_P50740-00_J4FK_[SM].pdf

DP50710-00 / 01 DP50740-00 / 02 / 03 DP50741-01 with panel # MD-50H13NBE Suggestions The Pwr Bd. is seldom bad. If the Pwr LED is turning OFF in 4-5 sec., these are the most common failures on the SC & SS Bds., If any are shorted, please replace the board. SC D451 D481 Q661 Q401 Q402 Q421 Q422 SS Q001 Q002 Q021 Q022 SANYO: DP50740-00 / 02 / 03 & DP50710-00 / 01 & DP50741-01 12/28/10 with PANASONIC 50" PLASMA PANEL (MD50H13NBE) p#1 SYMPTOM: TV's GREEN POWER LED WILL NOT REMAIN ON 2010-9B note: Unplugging any power cable from the SMPS to isolate the defective PCB will not work on this Panasonic panel. Unplugging any of the power cables will cause the SMPS to shut down. a) Unplug LVDS Cable (40 pin connector) from Main to Digital "D" Bd. (D5 connector) behind Main: This will eliminate the Main Bd., and see if the SMPS will power ON automatically, and remain ON. Plug the AC Cord to power (do not push the Pwr Key on the TV) and see if the SMPS will power ON. If the SMPS powers ON and remains ON, then the Main Bd. should be tried. If the SMPS continues to shutdown then resistance checks (#1-#12) below should be done. note: This panel has a self test mode, and unplugging the LVDS starts the self test. No raster is displayed, because a special jig is needed to activate the raster & video. RESISTANCE CHECKS TO POSSIBLY ISOLATE DEFECTIVE PCB Location of connectors is 1) Is pin #1 or #2 (55-60V) of (P35 connector) shorted to chassis Gnd? on page #2 yes, shorted = PDP Panel N/G not shorted = go to step #2 Please re-install all PCB mounting 2) Is Pin #5 (5V) of (P25 connector) shorted to chassis Gnd? screws whenever a board is yes, shorted = go to step #3 changed, and before re-testing not shorted = go to step #4 the TV. The ground screws are 3) Disconnect (p25 connector) needed to prevent damage to the Is Pin #5 (5V) of (P25 connector) shorted to chassis Gnd? PCB. yes, shorted = SMPS N/G not shorted = go to step #4 After working on TV, if it has 4) Disconnect (SC20 connector) several horizontal lines or bars, Is pin #30 (5V