A. B-600 Tester functions, controls & indicators
The B-600 testing system is used to check exposure and timing-related parameters on 600 line
cameras. The electronics unit (Fig. 1) houses the circuits needed to set the parameters and to
display test results. The Model B light source provides the light levels required for ambient expo-
sure measurements.
The chart below shows the function of each of the controls and indicators on the electronics unit.
Following the chart are the pretest and test procedures. Note that the test procedures are set up
with detailed instructions in the left column and a summary in the right column. Once you have
become familiar with the test procedures, occasional reference to the summary should be all that is
necessary to properly test 636 cameras.
KEY CONTROL/INDICATOR FUNCTION
1 Power Switch ON/OFF Switch: provides line voltage to Tester
A built-in lamp lights when the switch is ON.
2 Camera Current Meter Provides readout of camera DC current during a
camera cycle.
3 Test Selector Switch Used to select the various test modes.
4 Stops Error Meter Provides digital readout of test results.
(Reading is in stops error.)
5 Normal/Midcycle Switch Provides for a complete cycle or midcycle of a camera
on the horn.
6 Horn Connector Provides the electronic interface between
the B-600 horn and the electronics unit.
7 BB Error LED Provides a visual check of blade bounce
error in Model 610/620 cameras.
8 Strobe Detector/ Provides electronic interface between Strobe/ Flash
Detector connector Flash Detectors and the electronics
unit.
9 Calibrate/Test Switch Sets the electronics unit either for normal testing of 600
line cameras or for calibration of the electronics in
conjunction with a special calibration test box.
10 Manual Reset Button Used to clear the electronics when a camera is installed
on the horn.
11 Mode Switch Used to select exposure or aperture test mode.
12 Pack Simulator Provides connection for power paddles, allowing the tester
Connection to be used like a power supply.
13 Horn/Pack Simulator Allows switching of electronics for testing
Switch cameras on horn or with separate power paddle.
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