TS cf-21d33e Troubleshooting Guide

T roubleshooting Guide

DEAD SET
(NO RASTER/NO SOUND)

112V(or 118V)

Check the heater elements of

CPT are lighting or not

No

Check/Replace FR423

Yes

Check the voltage at

C430(+)

0.1V

Check/Replace IC430

R430, IC401, D411, FR422

0.1V

Check/Replace IC501

Check +B voltage at J131

8V

Check the voltage

at pin21 of IC501

over 0.4V

Check/Replace IC01

(IC202, IC01T, IC02T:

in case of with TXT)

Lower than 6V

0V

Check the rectified voltage of

main power at C817(+)

0V

Check/Replace

F801, DB813, R821, T801

~380V

150

Check the voltage

at pin9 of IC802

Check/Replace

D810, ZD810, Q810

6~8V

Check/Replace

IC802, D806, D811.

Check the secondary

voltage are short

NO PICTURE/NO SOUND

Check the voltage of

TUNER MB(12V)

Check/Replace

Tuner

Check the tuning

condition

Check the 33V at C416(+)

Check/Replace

R421, ZD404

Check/Replace

FR422, D411, IC401

(RASTER OK)

11.8~ 12.2V

0V