LG Electronics RT-21FA35R/RX/V/VX service manual Check B+

No Raster (2/ 2)

	CHECK B+
Normal	At D829 cathode	Abnormal

Is the voltage at

each pinvolageof IC11

Check		Open
Fuse of AC line
OK	Check / Replace

NO

Check &

Replace

IC11

NO

Check &

Replace

Q402

NO

Check &

Replace

T401

NO

Check &

Replace

Q401

Check pin 60 Of IC11(H - Out)

Yes

Check Q402 Collector waveform

Yes

Check T401

& each pin voltage

Yes

Check Q401 Collector waveform

Yes

Check & Replace T402

Check the In/ out of regulator (IC821, IC822 IC823, IC824 IC825)

NO

OK

		Fuse
			NO
Check the Voltage
Of C803
OK		Check / Replace
		DB801
			NO
Check the Voltage
Pin 4 OF IC801
OK	18~20V	Check / Replace
		Fuse IC801

Check / Replace

IC801, IC802, IC826

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

Check / Replace

IC11

- 13 -