LG Electronics CT-29M65VE service manual No Raster

NO RASTER

Normal

CHECK B+

At D829 cathode

Abnormal

Is the voltage at

each pin voltage of IC11

		Yes
No	Check pin 60
	Of IC11(H - Out)
Check &

No

Check the

In/out of regulator (IC821, IC822 IC823, IC824

Check		Open
Fuse of AC line
	Ok		Check / Replace
			Fuse
		No
Check the Voltage
Of C803

Replace		Yes
IC11
	Check Q402
	Collector waveform
No
Check &		Yes
Replace
Q402
	Check T401
No	& each pin voltage

IC825)

Ok 140 ~ 310V

Check the Voltage

Pin 4 of IC801

Ok 18 ~ 20V

Check / Replace IC801, IC802, IC826

Check / Replace DB801

No

Check / Replace Fuse IC801

		Yes
Check &
Replace
T401
No	Check Q401
	Collector waveform
Check &		Yes
Replace
Q401
	Check & Replace
	T402

No

Check Fuse and Rectifition Diode of secondary Load of SMPS trans(T803)

Ok	Check / Replace
	IC11

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