Power Current Consumption - Canon EOS 20D Service Manual

4. The result of the judgement
In case of "FAIL", click the No. and check
where the dust is located if necessary.
Then, clean the dust.
(2) Dust Loupe (CY9-1132):
Use the dust loupe set as a service tool to
check dust. The imaging surface of which
all dust viewable with the loupe has been
cleaned should meet the cleaning standard.

1.2 Power Current Consumption

Current Consumption Standards
Lens: EF 50mm f/1.8
Power source: Constant voltage 8.0 V, 0.40 Ω (No CF card installed)
Ambient conditions: Room temperature, normal humidity (below 60%)
Camera Status
Standby
Lock
SW1-ON
Note1: The Actual Measurement data is taken from the initial lot of mass production cameras. It
may differ slightly with subsequent lots.
Note 2: Standby means the condition where the camera stands by while Main SW is on.
Constant-Voltage
Power Source
+
-
Standard
150 mA or lower
150 µA or lower
350 mA or lower
Digital tester or
other ammeter
+ -
Fig. 010
3
Repair Information
Fig. 007
Fig. 009
Actual Measurement
Approx. 44.6 mA
Approx. 17.6 µA
Approx. 120 mA
Tools battery
To camera
Fig. 008