How to fix RCX 1.0 I.R. problem?

The LEGO RCX 1.0 powers ON and all built-in programs work well. But when I tried downloading or even communicating with the I.R. Tower, the RCX wont respond! =(

Which component should be replaced or re-soldered? Please anyone... help pls. I just need to know.. which hardware component is at fault... so I can fix it.

Thank you =)

crwdns2934081:0crwdne2934081:0 crwdns2934083:0crwdne2934083:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2853045:0crwdne2853045:0 crwdns2853046:0crwdne2853046:0

crwdns2889612:0crwdne2889612:0 1

crwdns2944067:02crwdne2944067:0

hello, i have the same problem like sirgilberts.

My RCX 2.0 shows a icon for IR detection and my older RXC 1.0 doesnt react - i have three of them but they wont work.

crwdns2934271:0N'w 11, 2011crwdnd2934271:0 Mainstream crwdne2934271:0

I'm working in a Schoolboard and i have 6 RCX 1.0 bricks with the same problem. I am interested if someone finds a solution.

crwdns2934271:0Kul 22, 2012crwdnd2934271:0 Daniel Ricard crwdne2934271:0

crwdns2934285:0crwdne2934285:0