Nikon SB-600 FSA03601 Repair Manual page 45

・LCD:
This indicates the flash control mode, TTL exposure compensation value, TTL underexposure ratio, zoom value, manual
flash output, etc. This is a segment type of TN type.
・LED:
This is a backlight that illuminates LCD. This automatically lights up when any switch of SB-600 is turned on, and it goes
out after a given time.
・Motor drive circuit:
This sets the illumination angle of the lighting unit. The lighting unit is set in position under command of the CPU.
・Switch input circuit:
This detects ON/OFF of the push switch on the backside of SB-600 and the mechanically required bounce position, the
status of the wide panel setting, etc.
・Leg contacts:
This has 5 contacts (CX, CRY, CSTP, CSP, GND) and connects electcially to camera. This is also the signal contacts to
communicate data with camera.
・AF LED:
This is the LED that lights based on the output from the AF assist illuminator circuit. This emits a specified vertical striped
pattern to the object, and assists the AF distance measurement.
・Buzzer:
This is the piezoelectric buzzer that sounds by the output from the buzzer drive circuit. This sounds by the output by the
buzzer drive circuit and the sounding tone and pattern are based on the CPU command.
・SPD:
This is the sensor to control the pre-flash output, manual flash output, and external flash output by monitoring the light
volume via connection to the metering circuit.
・SC-29 (External AF assist illuminator contacts:
When the TTL Remote Cord SC-29 with the AF assist illuminator function is attached, SB-600 automatically lights up the
AF assist illuminator of SC-29 based on the AF light signal from the camera, instead of lighting the AF assist illuminator of
SB-600.
- E3･ SB-600 -
FSA03601-R.3629.A