Yaesu FRG-100, Техническое дополнение

Страница: 8 / 79

Case Disassembly Circuit Board Access
Display
To access the Display Unit (including
tiometer, rotary encoder and
phone remove both the top and bottom
as previously described, then remove
the 2 screws from both edges on
side of the display unit (Figure 1).
Figure 1.
Next the 2 remaining screws Gently
pull the unit away from the Chassis and fold
it down (Figure 2).
Figure 2.
To remove the Display Unit, slightly
the hex nut affixing the main dial (do
it!) and pull it then remove the 2
screws located underneath (Figure
Gently pull off the VOL, SQL and M E M
knobs, then remove the 4 screws top
bottom) attaching the front to the
display unit Chassis.
Figure
0
0
0
0 Remove the wiring connectors from the SQL
and VOL controls on the rear of the Display
Unit.
Gently press in the catch mates
with the tab on the Display Unit circuit board
to release and lower the front
(Figure
Figure 4.
Next, using a small flat screwdriver, gently
pry out and remove the wiring connector
from the back of the MEM knob, then remove
the front
Gently the
POWER,
NB,
and
AGC
buttons out from the Then
remove the spring nylon
brass and affixing the
rotary encoder shaft to the Chassis.
Remove and the 6 screws aff ixing the Display
Unit circuit board to the Chassis (Figure 5).
Last, carefully remove the three wiring
from the bottom edge of the Display
Unit circuit board to free the unit.
Figure 5.
Supplement