Tektronix 7B10 Instruction Manual page 42

Maintenance- 7B1
0
REMOVE READOUT BOARD
AS FOLLOWS;
1.
Note index
of multi-pin
connector attached to
board and
disconnect
cable.
2.
Loosen
set
screw on
variable
switch assembly.
3.
Remove
VARIABLE
(CAL
INI
TIME/DIV
knob and attached
shaft
out
the front of the instrument.
4.
Remove
the 8 securing
screws from board.
5.
Lift board
away from cam
switch assembly.
TO REPLACE READOUT
BOARD. REVERSE THE
ORDER
OF REMOVAL.
C
1986-70
Fig.
4-6.
Readout board removal
procedure.
A3-Readout
Circuit
Board
To remove
the
circuit
board, follow the
procedure given
in
Figure
4-6
A2-Trigger
Circuit
Board
To
remove
the circuit board:
1
.
Remove
3 inter-board multi-pin connectors (see
Fig.
4-
3
for
identification).
2.
Remove
2 screws from
circuit
board.
3.
Lift
rear
of circuit
board
away
from frame and
slide
board
to
the
rear until
push-button switches
are
clear
of
the front
panel
4 Note wire
color
on
single-conductor shielded cables
(see
Fig
4-7
for identification)
and
connector
to
which
each
is
attached
5.
Disconnect
cables from back
of circuit board.
To
replace the
circuit
board, reverse the order
of
removal.