Tektronix 3 - Page 10

No. 3 Electric Shutter
SECTION 6
CAMERA
SYSTEM
MAINTENANCE
Refer to section 6 of the instruction manual which was
furnished with the camera for lens care information and
soldering instructions.
COMPONENT REPLACEMENT
Disassembly of Speedcomputer
a. Disconnect the power cord from its line voltage source.
b. Remove all connections to Speedcomputer.
c. Remove the three screws indicated in Fig. 6-1 from
the rear of the Speedcomputer case.
d. Lift the front panel and its attached (upper) circuit
board and power transformer out of the case.
e. Remove the lower circuit board by lifting it out of
the case.
Disassembly of Electric Shutter
When disassembling the shutter, lay the parts out
in an orderly manner as they are removed. This
will make reassembly easier.
Microswitch Repairs
. Remove the connecting cable to Speedcomputer.
. Remove the lens elements from shutter assembly.
Remove these
screws to gain
access to inside —
of case and upper,
circuit board.
. Remove the three screws from the shutter cover and
. Remove the cable clamp screw and microswitch e@
Solenoid Repairs
. Do parts a through e of Microswitch Repairs, then pro-
. Remove the Press Focus lever (see Fig. 6-2 item 7).
Fig. 6-1. Screw removal for Speedcomputer.
Reassembly of Speedcomputer
a. Reinstall lower circuit board in position being careful
that no wires are pinched by the circuit board.
b. Set the front panel with its associated upper circuit
board and power transformer into the Speedcomputer
case, dressing the wires and positioning the ornament
ring as necessary for proper clearances.
c. Reinstall the three screws removed in part c of the
disassembly instructions.
d. Reconnect the Electric Shutter and Speedcomputer.
.
Remove
five
screws
from
the
ring
plate
on
the
rear
of
. Remove the three screws (from the rear of the master
. Perform necessary maintenance.
NOTE
Remove two small screws from the identification plate
on the shutter and remove the identification plate
(see Fig. 6-2 items 1 and 2).
remove the shutter cover (see Fig. 6-2 items 3 and 4).
screws (see Fig. 6-2 items 5 and 6). Remove the piece
of electrical tape.
Perform necessary maintenance.
ceed with the following.
Remove three screws from the master plate and lift the
master plate out of the shutter case (see Fig. 6-2, items
8 and 9). The shutter blades (Fig. 6-2, item 10) will
normally fall out of position.
the master plate and remove the ring plate (see Fig. 6-2
items 11 and 12).
plate) which hold the solenoid in place, see Fig. 6-2,
item 13.
Carefully
lift
the
solenoid
from
the
front
of
the
master
plate,
taking
care
not
to bend the main lever pin
(see
Fig. 6-2 items 14 and 15).
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