Arcom RC210 Assembly Manual page 4

Construction
You are now ready to begin construction of the RC210. Use a
temperature controlled, fine-tipped soldering iron and good
quality 60/40 rosin-core solder for construction. Follow standard
construction practices when building the unit.
You will also need small flush or semi-flush cutting pliers and
small-tipped needle nosed pliers. A magnifying glass may prove
useful for identifying the values of small parts.
Keep the tip of the soldering iron bright and clean, wiping it
frequently on a wet sponge or rag. Make solder joints carefully,
but swiftly. Prolonged heat on a PC board pad can be disastrous
and ruining this PC board can be expensive! Two or three
seconds should be enough time to apply heat to any joint. Follow
the order of construction, as they have been developed to make
installation of parts as easy as possible.
The microprocessor (ATMega128) has already been soldered on
the board. Great care should be taken when assembling the
RC210 to ensure there are no static discharge issues. The use
of a grounding wrist strap and grounded tip soldering iron is
highly recommended. (Note: DAMAGE DUE TO STATIC
DISCHARGE IS NOT COVERED UNDER WARRANTY)
IC Sockets
Note: If any sockets are bent, carefully straighten them with a
pair of needle-nose pliers. When installing IC sockets, double
check to ensure that the socket is seated properly against the
board with the notch, beveled corner or "1" towards the
silkscreened reference (U1, IC2, etc). Be sure all IC socket pins
are showing on the solder side of the board. While making
certain the IC socket is tight against the PC board tack-solder
two diagonally opposite corners (such as pins 1 and 14 on a 14
pin socket). Then solder the remaining pins of that socket before
proceeding to the next one. If you find a socket is difficult to
install, remove it and check for bent pins.
Install the following IC sockets.
( ) U6 24-pin
( ) U1, U2, U3 18-pin
( ) U2, U3 14-pin
( ) U7 28-pin
( ) IC2, IC3, IC4 16-pin
( ) IC5, IC6 16-pin
Now check all your work. All leads should be soldered with no
solder bridges or cold solder joints.
Resistors
Resistors lie flat on the PC board and have a lead spacing
of 0.5". You may wish to use a lead former to preform the
resistor leads for the neatest appearance.
Install the following resistors 10K (brown-black-orange-gold)
resistors:
( ) R32, R55, R58
( ) R65, R66, R67
( ) R36, R37, R49
( ) R50, R63, R64
Install the following 47K (yellow-violet-orange-gold) resistors:
( ) R28, R54, R56, R57
Install the following 22K (red-red-orange-gold) resistors:
( ) R39, R59, R70
47ohm resistors (yellow-violet-black-gold)
In the following
( ) R34, R48
Install the following 470K (yellow-violet-yellow-gold) resistors:
( ) R10, R11, R12
Install the following 110K (brown-brown-yellow-gold)
( ) R33, R35, R41
Install the following 33K (orange-orange-orange-gold) resistors:
( ) R42, R45, R62
Install the following 100K (brown-black-yellow-gold) resistors:
( ) R1, R2, R3, R4, R5, R9, R51, R52, R53, R74
Install the following 470 ohm, (yellow-violet-brown-gold) resistors:
( ) R6, R7, R8, R15, R16, R17, R18, R19, R20
( ) R21, R22, R23, R24, R25, R26, R27, R29
( ) R40, R43, R61, R69, R71, R72
(Resistors R13 and R14 are not included. See Hardware Manual
for details)
4
RC210 Repeater Controller
Assembly Manual
Hardware Version 3.3