bk pt3 User Manual

26 

 

 

 

No sound, display 
will not light 

1. Power cord not plugged in. 
2. Power off at AC source. 
3. Power switch off. 
4. AC power inlet fuse blown or 

faulty.* 

 

1. Reconnect power cord. 
2. Check power at plug. 
3. Turn power switch on. 
4. Check for shorts or overloading. Replace 

fuse. 

No sound, display 
on. 

1. Preamplifier Tuner in mute 
2. Volume control to minimum. 
3. Wrong source selected. 
4. Line stage to amp. cables loose or 

faulty. 

5. Source to line stage cables loose or 

faulty. 

 

1. Unmute Preamplifier Tuner. 
2. Increase volume. 
3. Select source. 
4. Tighten, repair, or replace cable. 
 
5. Tighten, repair, or replace cable. 

Loud hum or buzz 
on one or more 
channels 

1. Poor ground connection in 

interconnect cables. 

2. Poor ground in main AC supply. 
 
3. Poor ground on cable box. 
4. Cables running across back of TV. 
 

1. Check all connectors and repair as 

necessary. 

2. Check ground of outlet. Have it checked by 

qualified serviceman. 

3. Check ground. 
4. Reposition cables. 

Remote will not 
operate unit. 

1. Batteries missing. 
2. Batteries dead. 
3. Batteries inserted wrong. 
4. Remote signal blocked. 
5. Lens requires cleaning. 
6. IR Lock is enabled 

1. Check for batteries inside remote. 
2. Put in fresh batteries. 
3. Follow diagram in battery compartment. 
4. Clear path to front panel of unit. 
5. Clean lens with a soft cloth. 
6. Refer to IR Lock under Security Options in 

this manual 

 

One or more 
channels sound 
bad 

1. It is possible that the Preamplifier 

Tuner needs to be reset (cold 
power boot). 

1. Cycle the Preamplifier Tuner’s front panel 

POWER switch to OFF then back to ON. 

* Note:

 If the unit continues to blow power inlet fuses, have the unit checked by a qualified 

technician.

,

 

contact B&K customer service.