Yaesu FRG-100, Technical Supplement

Page: 9 / 79

Case Disassembly Circuit Board Access
Pilot Replacement
Disconnect all cables and remove the top and
bottom as previously described.
Remove the 2 middle screws from both edges
of the display unit and the 2 lower
screws at the edge of side.
‘Loosen
the light then pull it out from it’s
grommet, the two blue
from the bulb to TP1005 TP1006 on the
of the circuit board as shown below.
Carefully these to remove the
lamp and resolder the replacement lamp
sembly (polarity of the
is not
To the backup use your fingers
to remove the old from it’s holder (do not
grab it with metal or pliers, as that
could short it out). Replace only with Sony
l i t h i u m t y p e C R 2 0 3 2 ( Y a e s u P a r t N o .
or
equivalent .
Removing Lithium
Slide inward, then pry up to eject
Inserting Replacement Battery
Pilot Lamp TP1005 TP1006
Battery replacement
The lithium backup
battery be
by removing the bottom (as
viously described). Battery location is shown
below.
Slide battery downward through slot, then
inward and release
Resetting the microprocessor
involving
mode and memory sometime be
resolved by simply resetting the
sor. There are two ways to reset the CPU in the
FRG-100, both of the contents of
all memories, them at the factory
faults.
Soft Reset
The procedure relies on a ROM routine
should normally to correct most
operating
Turn the then hold the
M E M
CLEAR
button while switching the
back on. If the still persists, proceed
to the hard reset.
Supplement
2-3