TM  11-5820-890-20-2 2-44 2.2. TROUBLESHOOTING FLOWCHARTS. Continued Chart 9 NO SIDETONE HEARD AT COMMANDER'S C 2298 WITH MONITOR SWITCH IN THE C POSITION. (Sheet 2 of 3) V U T S R P N M L K J H F E D C B A V U T S R P N M L K J H F E D C B A C 2298 J804 NO YES CLICKING SOUND HEARD IN HS ? 1.   REMOVE CX 4723 FROM COMMANDER'S C 2298 J804. 2.   CIRCUIT DISTURB PIN J TO PIN A OF C 2298 J804. 1.   REMOVE COMMANDER'S CX 4723 FROM AM 1780 J504. 2.   CIRCUIT DISTURB PIN J TO PIN A OF CX 4723. NO YES AC VOLTAGE CHANGES ? REPLACE COMMANDER'S C 2298. 2 SH 3 NO YES CLICKING SOUND HEARD IN HS ? REPLACE AM 1780. REPLACE COMMANDER'S CX 4723. 1 SH 2 CX 4723 V U T S R P N M L K J H F E D C B A AM 1780 J504