2-13-10. Overhead Switch Panel Lights.
The overhead switch panel has integral lighting. Power to
operate and control the overhead panel lights is supplied by
the No. 1 AC bus through the LIGHTING OVHD PNL
circuit breaker on the No. 1 PDP.
2-13-11. OVHD CSL Switch.
The OVHD CSL (overhead console) switch is located on
tehe CPLT LTG panel on the left side of the overhead
switch (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 overhead
switch panel light system is deenergized.
2-13-12. Pilot and Copilot Instrument Panel Lights.
All flight instruments and placards on both pilot and copi-
lot instrument panels receive lighting. The HSI, attitude
indicator (VGI), radar altimeter, and turn and slip indica-
tor for both pilot and copilot have integral lighting. The
remaining instruments are externally lit by lighting posts
adjacent to the instruments. Power to operate and con-
trol the pilot flight instrument lights is supplied by the No.
2 AC bus through the LIGHTING PILOT INSTR circuit
breaker on the No. 2 PDP. Power to operate and control
the copilot flight instrument lights is supplied by the No.
1 AC bus through the LIGHTING COPLT INST circuit
breaker on the No. 1 PDP.