LG Electronics CT-29M65VE service manual Scl, Sda

		No Picture / No Sound
			Is any OSD displayed?
	No			OK
					OK
OK	Check IC11 pin71,72,73		Check receiving system in MENU
	(R,G,B out)		& execute Auto - Program.
			Does the auto - Program
	No		Operate properly.
				OK
			Store on manual - program MENU
	No		No	Check SMPS Trans	Go to
	Check pin40(V out 1)	Check 1.8V, 3.3V,			No Sound /
	1V p-p	5V DC Voltage		Secondary Voltage	Picture OK
			OK
			No	Check IC13
		Check pin18
		Reset Voltage		(Reset IC)
		3.3V DC	OK
			No	Check IC12(EEPROM)
	No	Check pin57, 58
		SCL, SDA		& SCL, SDA, Line
	3.3V swing		OK
		Relace IC11
	Q501, Q503, Q504		Check / Replace
	(R, G, B out of IC11)		CPT Board component

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