Manuals / LG Electronics / TV and Video / Flat Panel Television

LG Electronics 42LP360H/361H-ZA Trouble Shooting Guide, Check the booting Voltage, Copyright

Models: 42LN548C 42LP360H 361H-ZA 42LN548C/549C-ZA

1 38

Download 38 pages 40.71 Kb

Page 16

TROUBLE SHOOTING GUIDE

TROUBLE SHOOTING GUIDE

1. Check the booting Voltage

;ΒΜΖ͑ΤΦΣΖ͑ΥΙΖ͑΄ΥΒΟΕ͞ΓΪ͑·ΠΝΥΒΘΖ	ͿΠ	;ΒΜΖ͑ΤΦΣΖ͑ΥΙΖ͑΁ΠΨΖΣ͑	Ί ΖΤ	;ΒΜΖ͑ΤΦΣΖ͑ΥΙΖ͑ΕΚΤΔΠΟΟΖΔΥΚΠΟ͑ΠΗ͑	ΊΖΤ	ͶΩΔΙΒΟΘΖ͑ΥΙΖ͑
΁ͥͤ͑ͪ͡ίͣ͢ΡΚΟ͑ͫ͑ͤͦ͜͟· ΐ΄΅͑		ʹΠΟΟΖΔΥΠΣ		;ΒΚΟ͑ΓΠΒΣΕ͑ͤͦ͟· ͑ΔΚΣΔΦΚΥ		ʹΚΣΔΦΚΥ͑ΓΠΒΣΕ
Ί ΖΤ
;ΒΜΖ͑ΤΦΣΖ͑ΥΙΖ͑;ΚΔΠΞ͑ΧΠΝΥΒΘΖ	ͿΠ	ͶΩΔΙΒΟΘΖ͑ΥΙΖ͑ͽͥͥ͡
;ΒΜΖ͑ΤΦΣΖ͑ΥΙΖ͑;ΚΔΠΞ͑ΧΠΝΥΒΘΖ
ͽͥͥ͑ͫ͑ͤͦ͜͟͡· ΐ΄΅͑
Ί ΖΤ
;ΒΜΖ͑ΤΦΣΖ͑ΥΙΖ͑ʹͽͼ͑ΠΗ͑Ήͣ͢͡	ͿΠ	ͶΩΔΙΒΟΘΖ͑ΥΙΖ͑Ήͣ͢͡
;ΒΜΖ͑ΤΦΣΖ͑ΥΙΖ͑ʹͽͼ͑ΠΗ͑Ήͣ͢͡	ͿΠ
ͺΤ͑ͣͥ;͹Ϋ
Ί ΖΤ
;ΒΜΖ͑ΤΦΣΖ͑ΥΙΖ͑΁Έ΃ΐ΀Ϳ͑ΠΗ͑΁ͥͤ͡	ͿΠ	΃Ζ͞ΕΠΨΟΝΠΒΕ͑ΠΗ͑ͷΚΣΞΨΒΣΖ	ͿΠ	ͶΩΔΙΒΟΘΖ͑ΥΙΖ͑;ΤΥΒΣ͙ͺʹ͚͢͢͡
͢ΡΚΟ͑ͫ͑ͤͤ͟·				΀Σ͑;ΒΚΟ͑ΓΠΒΣΕ
Ί ΖΤ
;ΒΜΖ͑ΤΦΣΖ͑ΥΙΖ͑;ΦΝΥΚ͑·ΠΝΥΒΘΖ	ͿΠ	ͶΩΔΙΒΟΘΖ͑ΥΙΖ͑ΔΚΣΔΦΚΥ͑ΓΠΒΣΕ
;ΒΜΖ͑ΤΦΣΖ͑ΥΙΖ͑;ΦΝΥΚ͑·ΠΝΥΒΘΖ	ͿΠ

΁ͥͤ͑ͣ͡ΡΚΟ͑ͫ͑ͣͥ· ͑ͨ͢͝ΡΚΟ͑ͫ͑ͣ͢·

	Ί ΖΤ
	;ΒΜΖ͑ΤΦΣΖ͑ΥΙΖ͑΀ΦΥΡΦΥ͑·ΠΝΥΒΘΖ͑ΠΗ͑ͺʹ͑ͥͣͤͨ͡͠͠	ͿΠ	ͶΩΔΙΒΟΘΖ͑ΥΙΖ͑ͺʹͥͣͤͨ͑͡͠͠͝
	;ΒΜΖ͑ΤΦΣΖ͑ΥΙΖ͑΀ΦΥΡΦΥ͑·ΠΝΥΒΘΖ͑ΠΗ͑ͺʹ͑ͥͣͤͨ͡͠͠	ͿΠ	΂ͥͤ͡
	ͺʹͥͣ͑ͫ͑ͣͦ͟͡· ͑͝ͺʹͥͤͫ͑͢͟͢͡· ͑͝ͺʹͥͨ͑ͫ͑ͦ͢͟͡· ͑͝΂ͥͤ͑ͫ͑ͤͤ͟͡·		΂ͥͤ͡
	ͺʹͥͣ͑ͫ͑ͣͦ͟͡· ͑͝ͺʹͥͤͫ͑͢͟͢͡· ͑͝ͺʹͥͨ͑ͫ͑ͦ͢͟͡· ͑͝΂ͥͤ͑ͫ͑ͤͤ͟͡·
	Ί ΖΤ
	;ΒΜΖ͑ΤΦΣΖ͑ΥΙΖ͑ΧΠΝΥΒΘΖ͑ΠΗ͑ͽ· ͵΄͑΁ΠΨΖΣ	ͿΠ	ͶΩΔΙΒΟΘΖ͑ΥΙΖ͑΂ͥͪ͡

΂ͥͪ͑ͫ͑ͣ͢͡·

Ί ΖΤ
;ΒΜΖ͑ΤΦΣΖ͑ΥΙΖ͑ΠΦΥΡΦΥ͑ΠΗ͑;΄΅Ͳ΃͑ͽ·͵΄	ͿΠ	ͶΩΔΙΒΟΘΖ͑ΥΙΖ͑;ΤΥΒΣ͙ͺʹ͚͢͢͡
;ΒΜΖ͑ΤΦΣΖ͑ΥΙΖ͑ΠΦΥΡΦΥ͑ΠΗ͑;΄΅Ͳ΃͑ͽ·͵΄		΀Σ͑;ΒΚΟ͑ΓΠΒΣΕ
		΀Σ͑;ΒΚΟ͑ΓΠΒΣΕ
Ί ΖΤ
;ΒΜΖ͑ΤΦΣΖ͑ΥΙΖ͑ͺΟΧΖΣΥΖΣ͑ΔΠΟΥΣΠΝ͑ΒΟΕ͑ΖΣΣΠΣ	ͿΠ	ͶΩΔΙΒΟΘΖ͑ΥΙΖ͑ΔΚΣΔΦΚΥ͑ΠΣ͑ΔΙΖΔΜ
΁ͥͤ͑ͩ͢͡ΡΚΟ͑ͫ͑͹ΚΘΙ͑ͣͥ͝ΡΚΟ͑ͫ͑ͽΠΨ		΅ΙΖ͑ͽʹ͵͑ΞΠΕΦΝΖ
Ί ΖΤ
ͶΩΔΙΒΟΘΖ͑ΥΙΖ͑ͽʹ͵͑;ΠΕΦΝΖ

2. Digital TV Video

ʹΙΖΔΜ͑ΥΙΖ͑΄ΥΒΟΕ͞ΓΪ͑·ΠΝΥΒΘΖ

΁ͥͤ͑ͪ͡ίͣ͢ΡΚΟ͑ͫ͑ͤͦ͜͟· ΐ΄΅͑

	Ί ΖΤ
	ʹΙΖΔΜ͑ΥΙΖ͑΅ΦΟΖΣ͑ͤͤ͟· ͑	ͿΠ	ͶΩΔΙΒΟΘΖ͑ΥΙΖ͑ͽͤͨͤ͡
	ʹΙΖΔΜ͑ΥΙΖ͑΅ΦΟΖΣ͑ͤͤ͟· ͑
	ͬ͑ͽͤͨͤ͡
	Ί ΖΤ
	ʹΙΖΔΜ͑ΥΙΖ͑΅ΦΟΖΣ͑ͩ͢͟·	ͿΠ	ͶΩΔΙΒΟΘΖ͑ΥΙΖ͑ͺʹͤͨͤ͡
	ʹΙΖΔΜ͑ΥΙΖ͑΅ΦΟΖΣ͑ͩ͢͟·	ͿΠ
	ͺʹͤͨͤ͑ͣ͡ΡΚΟ͑ͫ͑ͩ͢͟·
	Ί ΖΤ
	ʹΙΖΔΜ͑ΥΙΖ͑ͺͷΐ΁͠Ϳ͑Τ ΚΘΟΒΝ	ͿΠ	ͶΩΔΙΒΟΘΖ͑ΥΙΖ͑΅ΦΟΖΣ
	ʹΙΖΔΜ͑ΥΙΖ͑ͺͷΐ΁͠Ϳ͑Τ ΚΘΟΒΝ	ͿΠ
	΅Άͤͨͥ͑͢͢͢͡͡͠ΡΚΟ
	Ί ΖΤ
	ʹΙΖΔΜ͑ΥΙΖ͑ͽ· ͵΄͑ΠΦΥΡΦΥ͑ΤΚΘΟΒΝ͑ΠΗ͑;ΤΥΒΣ͑ͺʹ	ͿΠ	ͶΩΔΙΒΟΘΖ͑ΥΙΖ͑;ΤΥΒΣ͙ͺʹ͚͢͢͡
	ʹΙΖΔΜ͑ΥΙΖ͑ͽ· ͵΄͑ΠΦΥΡΦΥ͑ΤΚΘΟΒΝ͑ΠΗ͑;ΤΥΒΣ͑ͺʹ	ͿΠ	΀Σ͑;ΒΚΟ͑ΓΠΒΣΕ
			΀Σ͑;ΒΚΟ͑ΓΠΒΣΕ

Copyright ©	LG Electronics. Inc. All rights reserved.	- 16 -	LGE Internal Use Only
Only for training and service purposes

Image 16

LG Electronics 42LP360H/361H-ZA, 42LN548C Trouble Shooting Guide, Check the booting Voltage, Digital TV Video, Copyright

Contents

SERVICE MANUAL READ THE SAFETY PRECAUTIONS IN THIS MANUALLED TV MODEL 42LP360H/361H 42LN548C/549COnly for training and service purposes CopyrightLG Electronics. Inc. All rights reserved LGE Internal Use OnlySAFETY PRECAUTIONS General GuidanceBefore returning the receiver to the customer Leakage Current Cold CheckAntenna Cold CheckSERVICING PRECAUTIONS Electrostatically Sensitive ES DevicesIC Remove/Replacement ReplacementSmall-Signal Discrete Transistor Removal/Replacement RemovalSPECIFICATION 4. Model General Specification1. Application range 3. Test methodSpecification Symbolrate 4.0Msymbols/s to 7.2Msymbols/sOnly for training and service purposes Remarks5. Video resolutions 2D 5.1. Component Input Y, CB/PB, CR/PR5.2. RGB Input PC - HD Model 5.3. RGB Input PC - FHD Model5.3. HDMI InputPC/DTV PCDVIADJUSTMENT INSTRUCTION 1. Application Range2. Designation 3. Main PCB check processAfter downloading, have to adjust Tool Option again 3.1. ADC Process3.2. EDID Download 3.3. EDID data4.1. White Balance adjustment 4. Total Assembly line process3.4 Function Check 5. GND and HI-POT Test 6. Model name & Serial number D/L6.1. Signal Table 4.5. Outgoing condition Configuration7. CI+ key download 6.3. Method & notice7.1. Communication Prot connection 7.2. CI+ Key Download8.1. External speaker8OHM, 1W, Single-End 8. Check Commercial Features8.2. IR OUT TROUBLE SHOOTING GUIDE 1. Check the booting Voltage2. Digital TV Video Only for training and service purposes3. Analog TV Video 4. AV VideoOnly for training and service purposes Copyright5. RGB Video 6. HDMI VideoOnly for training and service purposes Copyright7. Audio of All iput 8. TV AudioOnly for training and service purposes Copyright9. AV Audio 10. RGB AudioOnly for training and service purposes CopyrightS7LR2 LGE211A-T8 BLOCK DIAGRAMTuner DVB- T/C EXPLODED VIEW Only for training and service purposesCopyright LG Electronics. Inc. All rights reservedOnly for training and service purposes 2013 S7LR22012 . 11 Copyright 2013 LG Electronics. Inc. All rights reservedSYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF ISOnly for training and service purposes VDDCFROM LIPS & POWER B/D PowerDET+1.5VDDR +3.3VNormal780 mAIC501 NTP-7500LTHE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATIONTHE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC Only for training and service purposesLVDS 51Pin LVDS Connector For FHD 60Hz30Pin LVDS Connector Only for training and service purposesOnly for training and service purposes HDMI EEPROMHDMI1 HDMI2RS232C 2013 S7LR22012 . 11 RS - 232COnly for training and service purposes HEADPHONERGB PC SIDE USBOnly for training and service purposes S7LRDIVXMS102013 S7LR2 2012 . 11THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATIONTHE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC Only for training and service purposesTHE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATIONFILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETICEXTSPEAKERAMP SPEAKER OUT JACKOnly for training and service purposes 2013 S7LR2Only for training and service purposes CI POWER ENABLE CONTROLCI Region Option name of this page CI SLOT because of Hong KongGP4RGLOBALTUNERBLOCK Only for training and service purposesTU2602 TU2603