User guide

Advanced: Tuning the PIX’s internal Lockit
The PIX 240i contains a full Ambient® Lockit generator which has an ultra-stable, temperature-com-
pensated internal oscillator. This oscillator comes from the factory pre-tuned to a very tight reference
central clock. This oscillator can be tuned by the user by utilizing Ambient’s ACC501 Clockit Con-
troller. This can be helpful on a larger production utilizing several PIX 240is to have the least amount
of error possible. The tuning is performed by connecting the Clockit Controller to the PIX 240i’s
LEMO connector and following the instrutions on the Clockit Controller.
PIX 220i Timecode Features
The PIX 220i is able to read timecode that is embedded on the HDMI video signal. Check your
camera’s documentation to determine if the camera is able to send timecode over its HDMI output.
When the Setup Menu option Timecode/Sync

Timecode Mode is set to Ext TC (HDMI), and a cam-
era is sending valid timecode embedded in the HDMI signal, the PIX 220i will stamp recorded les
with this timecode. This also allows for the PIX 220i to optionally begin recording when it senses
advancing timecode. (See “Triggering Recording from External Timecode”, page 46)
Timecode Modes
Freerun Timecode Mode
Generator mode. Timecode runs continuously. The value can be set by “jamming value” in the Setup
Menu option Timecode/Sync

Jam Received TC or by manually seing a value from the Setup
Menu option Timecode/Sync

Set Generator TC.
Freerun Auto Mute
Functions the same as Freerun mode except timecode signal is muted from the LTC output when the
PIX recorder is in stopped mode. This allows rec-run functionality when Rec Run mode is not suit-
able (e.g. Multi-camera shoots).
In Auto mute timecode modes, the overlaid timecode displayed on the video output will continue to run
when external timecode signal is lost.
Record Run Timecode Mode
Generator mode. The recorder sends running timecode while recording and stationary timecode
while not recording. Timecode in this mode defaults to the last stationary value at power-up. When
switching to record run from another mode, the internal generator will stop at the last number gen-
erated. A user-dened value can be jammed into the internal generator from the Setup Menu option
Timecode/Sync

Set Generator TC.
24h Run (24 hour Run)
Generator mode. Timecode runs continuously. When this Timecode Mode is selected or when the
time/date is altered, the timecode value is jammed to the value of the time-of-day clock (Automati-
cally upon changing to this seing and boot up). The value can be set by “jamming value” in the
Setup Menu section Timecode/Sync or by manually seing a value from the Setup Menu option
Timecode/Sync

Set Generator TC.
24h Run Auto Mute
Functions the same as 24h Run mode except timecode signal is muted from the LTC output when the
PIX recorder is in stopped mode. This allows rec-run functionality when Rec Run mode is not suit-
able (e.g. Multi-camera shoots).
Synchronization & Timecode
PIX 220i and PIX 240i Video Recorder User Guide
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