Page 4-2
Service Manual - KNG Portables
maintenance
sHielDs
Most shield on the KNG are press on type and can be removed by gently prying the lid.
Some require unsoldering before removal.
CleaninG
Using a clean, lint-free cloth, lightly moistened with soap and water only, and remove the foreign
1.
matter from the equipment case and unit front panel. Wipe dry using a clean, dry, lint-free cloth.
Using a hand controlled dry-air jet (not more than 15 psi), blow the dust from inaccessible areas.
2.
Care should be taken to prevent damage by the air blast.
Clean the receptacles and plugs with a hand-controlled dry-air jet (not more than 25 psi), and a
3.
clean, lint-free cloth lightly moistened with soap and water only. Wipe dry with a clean, dry, lint-free
cloth.
rePair
Refer to the proper parts list, schematics and parts placement diagrams in the Illustrated Parts Lists
section of this manual when replacing damaged components.
When replacing components it is recommended that only parts supplied from BK Technologies be used.
The use of some non-approved active components is considered an unauthorized modification voiding
any remaining factory warranty.
Use proper grounding technics and ‘best practice’ when soldering.
4.3 raDio test ProCeDUres
All alignment functions in KNG radios are performed electronically at the factory. There are no field
tunable radio alignment functions. The following information is for performance tests only.
test setUPs
Mount the radio in a suitable fixture containing an adapter for supplying 13.8 VDC from a negative
ground power supply.
recommended equipment
• RF Signal Generator: HP8640B or equivalent
• Distortion Analyzer: HP334A or equivalent
• RF Voltmeter (optional): Boonton 92C or equivalent
• RF Power Meter: NRT-Z14 or HP435B or equivalent
• Service Monitor: HP8920A Service Monitor or equivalent
• Digital Multimeter: Fluke 8012A or equivalent
transmit setup
When testing transmit functions, connect a suitable 50Ω load to the antenna output of the radio.
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