Installation manual

6. Initial Installation Diamond digital

6.2 POWERUP OF THE SWITCHER

Note The switchers are not provided with a central power switch. Switching on

and off is made via the central mains distribution of the studio or the equip-

ment cabinet!

For service works, the switcher control panel contains on the power supply

board of the E-box one switch each for switching the line voltage.

Switching on After having switched on the line voltage, a self-test is carried out in the electronics

box and control panel controller.

The correct functioning of controller RY 1917 is indicated by a running light in the

two LED rows.

Functiong of the power supply is indicated by the ”green” LEDs. For each main line

of the voltage distribution in the support frame, a separate LED is available.

If one of the status LEDs lights ”red”, the switch for the VCO adjustment is not in

the OPERATE position. If the LED rows of the controller indicate a defined error

code, please see the section ”Diagnosis” in the service manual.

In the control panel, all key lamps are lit temporarily. Subsequently, the control

panel returns to the operational state achieved before switching out.

No Reference If the LED ”No Reference” on the plug-in cards RY 1911, RY 1912 and RY 1914

is lit red, make sure that the switcher receives an external reference signal and

press the RESET key.

The status LEDs are switched off when switching on or performing a RESET. After

run of a diagnosis, the LEDs are lit to indicate correctly operating p.c. boards.