Astazi am incercat sa readuc la viata un optibox. Simptomele era asemanatoare cu cele descrise de esteticu; comunica cu pc-ul prin dream-up, pot instala imagini, dar nu afiseaza nimic pe tv si ramane ledul verde aprins fara sa comunice cu telecomanda. Sursa a fost schimbata, telecomanda verificata....la fel si cablurile video.
Am incercat cu jtag. Acesta e logul:

c:\jtag>JtagDm500 -m dm500 -e 00:09:34:20:E4:63
Dreambox Dm500 board initialize
Flash info. : INTEL JS28F640J3D75
[dm500] reading CA:ca 00 01 06 33 55 33 00 09 34 20 a3 12 06 04 ff
[CA] 4th mac addr byte is not redunderant, fixing it
[CA] 5th mac addr byte is not redunderant, fixing it
[CA] 6th mac addr byte is not redunderant, fixing it
Readed Config Area
Configuration Area
Mac Address: 00:09:34:33:55:33
Redunderant Mac Address: 33:55:33
Tuner Type alps
Mac Address Change Requested

Commit Config Area
Configuration Area
Mac Address: 00:09:34:20:e4:63
Redunderant Mac Address: 20:e4:63
Tuner Type alps
Erase Flash. done
Download..................................... done
Bienvenidos Amigos!!!!
Complete !

c:\jtag>







15:15:39 box type: DM500
15:15:48 Ping result: OK, box is alive and speaking to us ;-)
15:15:54 erasing complete flash (without bmon stage of course)...
15:16:31 OK, flash erased
15:18:12 Ping result: OK, box is alive and speaking to us ;-)
15:18:13 Ping result: OK, box is alive and speaking to us ;-)
15:18:16 Found no valid jffs2 in image, flash-erase not supported
15:18:16 Uploading file to box...
15:30:46 calculating CRC32 on STB...
15:30:47 erasing flash...
15:31:23 box is flashing from its memory...
15:31:59 calculating CRC32 on STB's flash...
15:32:08 OK, flash-copy succeeded
15:32:16 Ping result: OK, box is alive and speaking to us ;-)
15:32:21 Uploading file to box...
15:40:26 calculating CRC32 on STB...
15:40:26 erasing flash...
15:40:50 box is flashing from its memory...
15:41:08 calculating CRC32 on STB's flash...
15:41:14 "flash erase"...
15:41:27 OK, flash-copy succeeded
15:41:31 Ping result: OK, box is alive and speaking to us ;-)

Se pare ca e o problema pe partea de video. Daca as putea sa vad un log la bootare poate mi-as putea da seama unde e problema. O sa incerc cu hyperterminal cu ajutorul unui cablu serial. Poate reusesc ceva.