Honeywell XK516D1 - REPAIR; 1. General; 2. Circuit Card Assemblies (CCA)

Honeywell
COMPONENT MAINTENANCE MANUAL
PART NUMBER 964-0452
I.B.1516A Page 601
Mar 30/01
23-12-01
REPAIR
1. General
Repair consists of repairing or replacing damaged or faulty electrical and mechanical parts, and
repairing minor surface damage to the Transceiver. Repair materials are listed in Fig. 601. Re-
place all parts that do not meet the requirements of the TESTING AND TROUBLESHOOTING
section. A new part, module, or circuit card must be checked to the procedures of the CHECK
section before being installed in the Transceiver. Clean assemblies and parts according to the
CLEANING section.
Fits, clearances, and dimensions are given in the FITS AND CLEARANCES section. Special
tools are given in the SPECIAL TOOLS, FIXTURES, AND EQUIPMENT section.
NOTE: Equivalent substitutes may be used for all repair materials.
Repair Materials
Figure 601
CAUTION: ELECTROSTATIC DISCHARGE SENSITIVE (ESDS) DEVICES ARE SUBJECT TO DAMAGE BY
EXCESSIVE LEVELS OF VOLTAGE. REFER TO DOD-HDBK-263 FOR PROPER HANDLING .
2. Circuit Card Assemblies (CCA)
A. Clean CCA per CLEANING section.
B. Replace parts as necessary to repair faults.
NOTE: Label parts, terminals, and leads to ensure correct installation of replacement parts.
Note placement angle and polarity before removal.
C. Remove conformal coating per paragraph 3.
D. Remove parts with clinched leads by clipping the leads as close as possible to the board sur-
face on the component side, then desoldering and removing the lead remnants from the cir-
cuit side.
E. Sleeve leads and jumpers as required to prevent shorting.
F. Make connections mechanically secure before soldering.
CAUTION: CLEAN SOLDER JOINTS ONLY WHEN PWB CIRCUITS ARE GROUNDED. REFER TO
DOD-HDBK-263.
G. Clean new solder joints with isopropyl alcohol (Ref. Fig. 601).
H. Clean card edge connectors with a pencil eraser. Remove eraser material with a soft-bristle
brush, and clean contacts with isopropyl alcohol (Ref. Fig. 601).
ITEM MANUFACTURER AND SPECIFICATION USE
1. Solder Tin-lead, rosin core, activated wire, SN60WRMAP3,
or SN63WRMAP3 per QQ-S-571.
Leads and wires.
2. Conformal
coating
Per MIL-I-46058, type UR. Coat printed wiring boards.
3. Thermo-
lubricant
Kluber Syntheso Conductive W, Article No, 091-025. A3A31 V38, V39, and V41.
4. Isopropyl
Alcohol
TT-I-435, Grade A, commercially available. Clean solder joints.