TM  1-1520-240-10            2-13-5 2-13-13.  PLT and CPLT INST Switches. The PLT INST (pilot instrument) control switch is located on the PLT LTG panel on the right side of the overhead switch panel (fig. 2-13-2). The CPLT INST (copilot instru- ment ) control switch is located on the CPLT INST panel on the left side of the overhead switch panel. The rotary control switches are labeled OFF, DIM, and BRT. They adjust the light level from DIM to BRT. When the rotary control switch is OFF, the respective instrument panel light system is deenergized. When the PLT INST rotary control switch is placed out of the OFF detent, the following lighting is dimmed: a. Troop warning jump lights on the overhead switch panel and on the emergency troop alarm and jump lights boxes on the cargo compartment. b. The legend on pushbutton switches on the head- ing and altitude section of the AFCS panel. c. The legend on the pushbutton switches on the pilot and copilot HSI MODE SELECT panels. d. The legend on STATUS pushbutton switch on the countermeasure set AN/ALQ-156 control panel. 2-13-14.  Center Instrument Panel Lights. The center instrument panel as well as the fire warning panel are lighted. Power to operate and control the cen- ter instrument panel lights is supplied by the No. 2 AC bus through the LIGHTING CTR INSTR circuit breaker on the No. 2 PDP. 2-13-15.  CTR INST Switch. The CTR INST control switch is located on the PLT LTG panel on the right side of the overhead switch panel (fig. 2-13-2). The rotary control switch is labeled OFF, DIM, and BRT. It adjusts the light level from DIM to BRT. When the rotary control switch is OFF, the respective instru- ment panel light system is deenergized. 2-13-16.  Canted and Center Console Lights. NOTE Some  console  lights  are  incompatible  with NVG. During NVG operations, turn the incom- patiable console lights off and light the con- sole with utility lights or floodlights. Lighting is provided for all control panels on the canted and center console. Power to operate and control the console lights is supplied by the No. 1 AC bus through the LIGHTING CONSOLE circuit breaker on the No. 1 PDP. 2-13-17.  LTG Panel.  The LTG panel is located at the rear of the overhead switch panel (fig. 2-13-2). It consists of the CTR CSL and STICK POSN IND control switches. a. CTR CSL Switch.  Rotary control switch labeled OFF, DIM, and BRT. It adjusts the light level on the canted and center consoles from DIM to BRT. When the rotary control switch is OFF, the canted and center consoles light system is deenergized. b. Stick POSN IND Switch.  Rotary control switch labeled OFF, DIM, and BRT. It adjusts the light level on the stick position indicator from DIM to BRT. When the rotary control switch is OFF, the stick position indicator light system is deenergized. 2-13-18.  Dome Lights. WARNING If the white dome light is turned on during NVG operations, the effectiveness of the NVG may be severely impaired and a haz- ardous  situation  may  be  created  due  to sudden loss of pilot visual references. Do not turn on the white dome lights during NVG operations. Two cockpit dome lights are attached to the overhead structure  adjacent  to  the  overhead  switch  panel  (fig. 2-13-2). Each dome contains a white lamp and a blue NVG  filtered  lamp  which  can  be  selected  individually. Power to operate and control the dome lights is supplied by the DC essential bus through the LIGHTING COCK- PIT DOME circuit breaker on the No. 2 PDP. 2-13-19.  DOME Switch. The DOME switch is located on the INTR LTG panel at the right rear of the overhead switch panel (fig. 2-13-2). The   three-position   positive-locking   switch   is   labeled WHT, OFF, and NVG. It selects the function of the dome light. The center position lever locking switch prevents inadvertent white light activation during NVG operations. When the DOME switch is placed to WHT, the master caution  panel  cannot  be  dimmed.  If  WHT  is  selected while the caution panel is operating on DIM, the caution lights will automatically switch to BRT mode. During NVG operations, the DOME switch should only be placed to NVG. 2-13-20.  Pilot and Copilot Utility Lights. Two utility lights, connected to individual flexible cords, are mounted in two retaining sockets on either side of the over- head switch panel above the pilot and copilot (fig. 2-13-2). The lights are detachable and can be moved about to take care  of  special  lighting  situations.  Each  utility  light  has  a rheostat  switch  as  an  integral  part  of  its  assembly.  This switch,  located  on  the  aft  part  of  the  light,  regulates  the intensity of the light from OFF to BRT. Power to operate the utility  light  is  supplied  by  the  No.  2  DC  bus  through  the LIGHTING COCKPIT DOME circuit breaker on the No. 2 PDP. 2-13-21.  Floodlights. Eight  floodlights  provide  a  secondary  source  of  light  (fig. 2-13-2). Six are under the glareshield and two on the cockpit