Chapter 4 Adjustments and settings for recording (continued)

Example 6:

When an external device is locked to the time code generator of this unit, which is connected in a cascade configuration.

Reference video signal

To be connected if necessary

TCG

TC OUT

AJ-HDX900 1st unit

Operating procedure for external locking

Follow the steps below for external locking.

1 Set the POWER switch to ON.

2 Set the TCG switch to F-RUN.

3 Set the DISPLAY switch to TC.

4 Supply the reference time code and reference video signal, which are in a phase relationship that satisfies the time code standard, to the TC IN connector and GENLOCK IN connector respectively.

TC IN

GENLOCK IN

TC OUT

AJ-HDX900

TC IN

GENLOCK IN

TC OUT

AJ-HDX900

TC IN

GENLOCK IN

TC OUT

Settings of the TC VIDEO SYNCRO item: 1

From the 2nd unit to the (n–1)-th unit

Settings of the TC VIDEO SYNCRO item: 0

n-th unit

Settings of the TC VIDEO SYNCRO item: 2

The built-in time code generator is now locked to the reference time code.

About 10 seconds after locking, the external lock status will be retained even if the connection of the externally supplied reference time code is disconnected. However, the servo lock will be subject to disturbances if it is connected or disconnected during recording.

O When the power of the unit is turned off, the time code is unlocked.

O The accuracy of the time code is ± 20 seconds a month.

<Note>

When the external lock operation is performed, the time code is instantly locked to the external time code, and the same value as the external code value appears on the counter display. Do not set the unit to the recording mode during the few seconds it takes for the sync generator to stabilize.

A device that synchronizes with the TC IN input and capable to record without delay (such as DAT or a camera recorder)

TC IN

DAT

Concerning the user bits setting during external lock

When the unit’s time code is externally locked, only the time data is locked to the time data of the time code supplied from the external source. This means that the user bits can be set separately for each component.

When the <TC/UB> screen is opened from the VTR menu page and EXT is selected as the UB MODE item setting by performing menu operations, the user bits can also be locked to the user bits of the time code supplied from the external source.

To release the external lock

First stop supplying the external time code, and set the TCG switch to R-RUN.

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