LG LH-T6245 Service Manual Download Page 24 | Manualshive

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- 3-1 -

SECTION 3. DVD PART

TROUBLESHOOTING GUIDE

1. Test & debug flow

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Summary of Contents for LH-T6245

Page 1: ...DVD CD RECEIVER SERVICE MANUAL MODEL LH T6245 LH T6245A LHS T6245T LHS T6245W SERVICE MANUAL MODEL LH T6245 LH T6245A LHS T6245T LHS T6245W CD R RW ...

Page 2: ...IO TROUBLESHOOTING GUIDE 2 1 BLOCK DIAGRAM 2 5 SCHEMATIC DIAGRAMS 2 7 WIRING DIAGRAM 2 17 PRINTED CIRCUIT DIARGAMS 2 19 SECTION 3 DVD PART TROUBLESHOOTING GUIDE ELECTRICAL TROUBLESHOOTING GUIDE 3 1 DVD PART SCHEMATIC DIAGRAMS 3 7 SECTION 4 EXPLODED VIEWS 4 1 SECTION 5 SPEAKER PART 5 1 SECTION 6 REPLACEMENT PARTS LIST 6 1 ...

Page 3: ...ver be touched 4 Laser beams may damage the eyes Absolutely never permit laser beams to enter the eyes Also NEVER switch ON the power to the laser output part lens etc of the pick up if it is damaged 5 Cleaning the lens surface If there is dust on the lens surface the dust should be cleaned away by using an air bush such as used for camera lens The lens is held by a delicate spring When cleaning t...

Page 4: ... replacing a component part first disconnect the power supply lead wire from the unit 2 All equipment measuring instruments and tools must be grounded 3 The workbench should be covered with a conductive sheet and grounded When removing the laser pick up from its conductive bag do not place the pick up on the bag This is because there is the possibility of damage by static electricity 4 To prevent ...

Page 5: ...harges sufficient to damage ESD devices 5 Do not use freon propelled chemicals These can generate electrical charges sufficient to damage ESD devices 6 Do not remove a replacement ESD device from its protective package until immediately before you are ready to install it Most replacement ESD devices are packaged with leads electrically shorted together by conductive foam aluminum foil or comparabl...

Page 6: ... 1 5 SPECIFICATIONS ...

Page 7: ... 1 6 ...

Page 8: ... 2 1 SECTION 2 AUDIO PART AUDIO TROUBLESHOOTING GUIDE 1 POWER SUPPLY CIRCUIT ...

Page 9: ... 2 2 2 FRONT CIRCUIT 1 2 ...

Page 10: ... 2 3 3 FRONT CIRCUIT 2 2 ...

Page 11: ... 2 4 MEMO ...

Page 12: ... BLOCK DIAGRAM 2 5 2 6 ...

Page 13: ...2 7 2 8 SCHEMATIC DIAGRAMS POWER SCHEMATIC DIAGRAM ...

Page 14: ...2 9 2 10 MICOM SCHEMATIC DIAGRAM ...

Page 15: ...2 11 2 12 FRONT SCHEMATIC DIAGRAM ...

Page 16: ...2 13 2 14 DSP AMP SCHEMATIC DIAGRAM ...

Page 17: ...2 15 2 16 SMPS NARROW WIDE SCHEMATIC DIAGRAM ...

Page 18: ...2 17 2 18 WIRING DIAGRAM ...

Page 19: ...2 19 2 20 PRINTED CIRCUIT BOARD DIAGRAMS MAIN DVD P C BOARD DIAGRAM BOTTOM ...

Page 20: ...2 21 2 22 MAIN DVD P C BOARD DIAGRAM TOP ...

Page 21: ...2 23 2 24 FRONT P C BOARD TOP ...

Page 22: ...2 25 2 26 FRONT P C BOARD BOTTOM ...

Page 23: ...2 27 2 28 SMPS P C BOARD ...

Page 24: ... 3 1 SECTION 3 DVD PART TROUBLESHOOTING GUIDE 1 Test debug flow ...

Page 25: ... 3 2 ...

Page 26: ... 3 3 ...

Page 27: ... 3 4 ...

Page 28: ... 3 5 ...

Page 29: ... 3 6 ...

Page 30: ...3 7 3 8 DVD SCHEMATIC DIAGRAMS DVD MPEG DSP SCHEMATIC DIAGRAM ...

Page 31: ...3 9 3 10 DVD RF SERVO SCHEMATIC DIAGRAM ...

Page 32: ...4 1 4 2 351 305 313 A47 302 303 451 451 A46 451 451 A26 451 A43 281 286 454 280 275 SECTION 4 EXPLODED VIEWS CABINET AND MAIN FRAME SECTION ...

Page 33: ...ASSEMBLY DECK MECHA LOADING HZ 015B 4560R 0008A PULLEY MOTOR 015C 4680R E010A MOTOR MECH FEEDING BCZ3B51 SANKYO FOR DP7 017 4470R 0056A GEAR LOADING 018 4974R 0023A GUIDE UP DOWN 020 3040R D005A BASE MAIN DP 7T MOLD SLIM 021 4680R C011A MOTOR MECH SPINDLE JCL9B68 SANKYO FOR COM 022 4681R 0034D MOTOR ASSEMBLY DECK MECHA FEEDING DP 7C 7A 024 4470R 0131A GEAR PINION DP7C 024A 5006R 0044A CAP SKEW T D...

Page 34: ... 5 1 SECTION 5 SPEAKER SECTION MODEL LHS T6245T 753 755 752 754 751 750 ...

Page 35: ... 5 2 MODEL LHS T6245W 854 856 855 853 850 852 857 851 ...

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