Daewoo DTH-14Q1FS free download

File name Daewoo CM-537[3].pdf

§ CONTENTS SPECIFICATIONS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -------------------------------SAFETY INSTRUCTIONS ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶ BLOCK DIAGRAM° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶ GENERAL ALIGNMENT INSTRUCTIONS ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶ DESCRIPTION OF THE CIRCUIT OPERATION ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶ TROUBLE SHOOTING CHARTS ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶ PRINTED CIRCUIT BOARDS ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶ REPLACEMENT PARTS LIST ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶ EXPLODED VIEW ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶ CIRCUIT DIAGRAM ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶ 1 2 3 4 6 10 32 40 41 54 64 § SPECIFICATIONS CHASSIS Receiving System Main Voltage Power Consumption Sound Output Antenna Impedance Tuning System Number of Memory Channel Reception Channel NTSC/PAL-M/PAL-N AC 100/220V, 50/60Hz 60 Watts (14") / 65 Watts (20") 2.5W (16§ ) 75§ Unbalanced Frequency Synthesizer 181 Channels VHF TV UHF TV LOW:CH2~6 HIGH:CH7~13 CH14~CH69 CM-537 Remote Control Unit Screen Size Color Standard Tuner Type Aux. Terminal CATV CH1~CH125 R-25C04 14" / 20"(diagonal) NTSC/PAL-N,M Varactor Type with PLL Input:Video,Audio 2 § SAFETY INSTRUCTIONS § SAFETY PRECAUTION WARNING: Service should not be attempted by anyone unfamiliar with the necessary precaution on this receiver. The following are the necessary precaution to be observed before servicing. 1.Always discharge the picture tube anode to the CRT conductive coating the picture tube. the picture tube is hightly evacuated and if broken, glass fragments will be violently expelled. Use shatterproofgoggles and keep picture tube away from the body while handling. 2.When replacing chassis in the cabinet,always be certain that all the protective devices are put back in place, such as; nonmetallic control knobs, insulating covers, shields, isolation resistor-capacitor network, etc 3.Before retuning the set to the customer, always perform an AC leakage current check on the exposed metallic parts of the cabinet, such as antennas, terminals, screwheads, metal overlays, control shafts etc, to be sure the set is safe to operate without danger of electrical shock. Plug the AC line cord directly into a AC outlet. Use an AC voltmeter having 500 ohms per volt or more sensitivily in the following manner. Connect a 1500 ohm 10 watt resistor, paralleled by a 0.15 mfd, AC type capacitor, between a known good earth ground( water pipe, conduit etc) and the exposed metallic parts, one at a time. Measure the AC voltage across the combination of 1500 ohm resistor and 0.15 mfd