Decoder Driver Ic Adjustment - Canon A-1 Repair Manual

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4.4 DECODER DRIVER IC Adjustment
RIADJ.
RI Adjustment adjust the constant
viewfinder display segment LED's .
brightness of the display.
SERVICE ADJUSTMENT
current source for
It affects the
the
The factory adjustment requires too l s, test equipment
and IR soldering techniques not available to service
facilities. The criteria for service will be the
brightness as visually determined by the repair person.
If the display is too bright or dark , replace RIADJ
(Fig. 4-6). A higher resistance wi l l reduce the brightness.
DECODER
DRIVER IC
'~
~
RX"DI
. . .
, ,n
Fig. 4-6