7-1. General Parts Replacement Techniques
c. Extender Boards A3, A4, and A5.
All components of the test facilities set that are
d. Cables W14/W15, W16, W21, W32, W39
repairable can be easily replaced without special
(plugs P3 through P6), W45, W47, and W48 (plugs P2
procedures. Parts located in the hybrid attenuator
assembly (fig. 7-1) are accessible when the chassis of
e. Printed Circuit Board Extractors MP1 and MP2.
the hybrid attenuator assembly is removed from its
case. Parts of the R-T front panel test adapter are
7-5. Repair of Printed Circuit Board Extractors
accessible when the bottom cover is removed.
If printed circuit board extractors MP1 or MP2 become
bent or misaligned, bend back into proper shape with a
7-2. Nonrepairable Components
pair of pliers. After bending, check that the width of the
The following components of the test facilities set are
extractor is correct for proper insertion into the puller
holes of the printed-circuit board.
a. Cables. Cables W13, W39 (except plugs P3
through P6), W40, W41, W42, W43 and W48 (except
7-6. Extender Board Repair
plugs P2 through P6).
If the printed-circuit wiring on the board extenders
b. Adapters. Terminations, and Attenuators.
breaks, solder a short length of copper wire across the
(1) Adapters: CP1 through CP11
break. Use just enough heat to assure a well soldered
bond, being careful not to burn the board base material.
(2) Terminations: AT3 through AT6
(3) Attenuators: AT1/AT2, and W48 AT1
7-7. Repair of Cable Assemblies
(1) A damaged cable connector should not be
7-3. Tools and Kits Required
repaired, it should be replaced.
(2) Cable assemblies under one foot in
Tools or kit
Tool kit, Electronic
(a) If a connector is damaged, replace
the cable assembly with a spare. If no spare is
available, rebuild the cable assembly using a new length
Printed wiring re-
Repair kit, Printed
of cable and new and/or salvaged connectors. If a new
Wiring Board MK-
length of cable is not available, replace the damaged
(b) If the cable conductors are
7-4. Repairable Components
damaged, replace the cable assembly with a spare. If
The following components are repairable:
no spare is available, rebuild the cable assembly
a. Hybrid Attenuator Assembly A1.
b. Front Panel Test Adapter A2.