Ex-link in service mode on A series(SH4)
See Getting access to u-boot (SH4) how to connect a Service Cable - ExLink. Provided that you have working Ex-link connection you can enter following commands (based on T-RBYDEUC firmware)
Debug Menu
Let serial line calm down from huge boot messages and type
debug [ Enter ]
Very complex menu tree follows. You can do lot of things there, especially screw up your TV completely.
BE VERY CAREFUL AND ABSOLUTELY SURE YOU KNOW WHAT YOU ARE DOING
Other Debug commands
I doubt about usefulness of following commands:
^ [ Enter ]
CPU reset (TV screen is shifted because GPU is not properly initialized) - same as micom 143.
keydebug [ Enter ] keyrec [ Enter ] keyexit [ Enter ]
Repeats periodically sequence of simulated key presses.
Simulated remote control
Enter one character code followed by [ Enter ] to simulate a remote control key press.
| Character entered to Ex-link | RC command code (hex) | Command |
|---|---|---|
| 1 2 3 4 5 6 7 8 9 0 | 4 5 6 8 9 0xa 0xc 0xd 0xe 0x11 | numeric keys |
| space | 0x3b | Factory (not available on standard RC) |
| ` | ||
| s | ||
| ! | 0x65 | left |
| # | 0x61 | down |
| $ | 0x62 | right |
| . | 0x19 | |
| < | 0x20 | |
| @ | 0x60 | up |
| D | 0x43 | ?? shows channel number |
| N | 0x32 | ?? not avail |
| Z | 0x0f | mute |
| d | 0x10 | prog- |
| e | 0x68 | enter |
| f | 0x44 | favorite channel? |
| g | 0x4f | guide |
| i | 0x1f | info |
| l | 0x0b | vol- |
| m | 0x1a | menu |
| n | 0x33 | ?? not available |
| p | 0x13 | prev-ch |
| r | 0x07 | vol+ |
| u | 0x12 | prog+ |
| v | 0x01 | source |
| x | 0x2d | exit |
| z | 0x25 | subt |
