LG Electronics 29FX6ALX-ZG service manual No Raster 2/2, Open

Page 14

3) No Raster (2/2)

	Check the B+ at D829
	cathode
Normal	Abnormal

Is the voltage each pin voltage of IC501

Check pin 73 of IC501(H_Out)

NO

Check the in/out of r e g u l a t o r ( I C 8 2 2 , IC823, IC824)

				OPEN
Check Fuse of AC line				OPEN




OK		Check/ Replace Fuse
OK

				NO

Check the voltage of
Check the voltage of
C832

Check/ Replace IC501

Check/ Replace Q402

Check/ Replace T401

Check/ Replace Q401

Check Q402 collector waveform

Check T401 & each pin voltage

Check Q401collect waveform

NO

OK

Check/ Replace DB801

Check the voltage	NO
Check the voltage
pin4 of IC810
pin4 of IC810

Check/ Replace Fuse and IC810

Check/ Replace

IC810, IC802, Q830

Check Fuse and Diode of secondary

Load of SMPS trans(T801)

Check & Replace T402

Check/ Replace IC501

- 15 -

Image 14

Contents Model 29FX6ALX Contents Description of Controls Favourite Front panel Side panel SECAM-L/L’ Option Ntsc M/ PAL M/N PAL,SECAM BGPAL/SECAM DK PAL-I/I Ntsc M NTSC-MApplication Object Focus adjustmentPurity & Convergence adjustment CPT Heat RUNDeflection setting Data Adjustment Screen voltage adjustmentWhite balance adjustment Deflection setting initial data Service adjustment data table OSD & Text Languages Main Chassis Assy Option AdjustmentLevel Part no Specification Description Trouble Shooting UociiiNo Raster 2/2 OpenNo Picture/ No Sound SDAAV STEREO/ Mono Model Printed Circuit Board POWERSIDE-A/V Control Smps LED Harmonic Block Diagram Exploded View Exploded View Parts List Replacement Parts List Description Coil & Inductor Resistor 0RMZVBK002D Switch No 38549D0024A May