ViewSonic CDX4952 Guide De L'utilisateur page 56

NOTE:
1. This IR-pass-through code is different from the RCU key code.
2. Special control sequence for POWER key under IR-pass through mode.
2-1. When TV/DS is OFF and receives the IR POWER code: TV/DS will turn itself on, then forward
the POWER code to the host via RS232.
2-2. When TV/DS is ON and receives the IR POWER code: TV/DS will forward the POWER code to
the host via RS232, then turn off itself.
2-3. When SET-POWER LOCK is enabled, the TV/DS will not respond to POWER key pressing.
3. The VOLUME UP and VOLUME DOWN code will repeatedly output when you press and hold the keys.
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