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VI.
LIST OF PCBSAIRWLEDS
/CHECK
PINS
Variable resistors, LEDs and check pins
which are used for adjustments in the field
are listed below.
VRs and check pins not listed here are
used only for factory
adjustments
which
require special tools and measuring instru-
ments, as well as areat care and precision.
Note:
1. Leakage current may flow through some
LEDs and cause them to glow dimly even
though they are supposed to be OFF.
2.VRs which can be adjusted in the field
0
3.VRs which should not be adjusted in the
field
@
Do not attempt to-adjust such parts.
1. DC Controller
PCB
r
J305
J306
?%?I
4
J301
ToSORTER
SW301
\iR301
dR302
et303
dR304
8305
dR306
Figure 3-36
VR No.
Prupose
VR30 1
leading edge registration
VR302
leading edge blank width
VR303
AE reference
point
I
For details of the method of adjustment,
VR304
AE gain
see the subsection "AE adjustment".
Table 3-7
SW No.
[
Prupose
SW301
1
Press to enter or leave the SERVICE mode
Table 3-B
4
When non-AE mode is selected in a standard mode, cut off the jumper wire JP301.
n
When removing the connector J350
in case the DC controller is replaced and so on,
be sure to connect the connector J350
at the time of installation.
COPVAlGHT
0
1980 CANON IiC.
CANON NP401511215S
AN.0
OCT. 1988 PAINTED
IN JAPAN IIMPAIM~
AU JAPOAl
3 - 33
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