Owner`s manual
6
VK-51SE FRONT PANEL CONTROLS 
STANDBY Button and LED 
The Standby button is used to turn the unit ON and OFF and to switch the preamplifier into its 
Standby mode. The LED indicates the status of the unit’s power circuitry and has four states: 
LED OFF    Display OFF    Unit is in OFF state 
      Display ON    Unit is in ON state 
LED Flashing   Unit is going through its Power-ON routine 
LED ON    Unit is in its STANDBY mode 
When the unit is plugged into a power line, it will stay in the OFF state until the Standby button is 
pushed. The LED will then start blinking and the unit will go through a 50second warm-up 
sequence. At the end of that sequence it will turn ON. 
Pressing the button again will switch the unit into its Standby mode. 
The VK-51SE can be turned OFF by pressing and holding the Standby button. 
VK-51SE Power-On sequence: 
When you turn the VK-51SE On, it will automatically go through a gentle power-on sequence. 
This sequence takes 50 seconds, during which time the display and the Standby LED will be 
flashing, indicating the status of the unit. 
1.  The number on the display during this time indicates the volume setting. This will usually 
start at 000. This setting can be changed during this time by using the volume knob or 
Volume Up/Down buttons on your VK-R3 remote control transmitter. In addition, such 
functions as Phase, Mono, input selection and Mute can be changed during this time either 
from front panel or through the remote control. 
2. Normally the VK-51SE will be not muted (Mute LED on the display is OFF) and will begin 
playing at the end of the 50 second delay. If so desired, the unit can be put in the MUTE 
mode during this delay interval either by depressing the front panel MUTE switch or by 
using the MUTE button on the VK-R3 remote control transmitter. 
Turning the VK-51SE Off: 
The unit can be turned OFF by pressing and holding the Standby button. It will automatically 
mute. 










