SERVICE MANUAL
For Technical Service
Ver 1.1 2000. 03 With SUPPLEMENT-1 (9-927-621-82)
SKYTEL
TABLE OF CONTENTS 1. 2. TOOLS .......................................................................... 2 ELECTRICAL ADJUSTMENTS
PD Voltage Adjustment ................................................... 3 Local Frequency Adjustment .......................................... 4 Antenna Adjustment ........................................................ 4 Flexible Circuit Board Repairing � Keep the temperature of the soldering iron around 270 �C during repairing. � Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). � Be careful not to apply force on the conductor when soldering or unsoldering. Notes on chip component replacement � Never reuse a disconnected chip component. � Notice that the minus side of a tantalum capacitor may be damaged by heat.
3.
3-1. 3-2. 3-3. 3-4.
DIAGRAMS
Block Diagram ................................................................ Printed Wiring Boards ..................................................... Schematic Diagram ......................................................... IC Pin Function Description ........................................... 5 8 11 17
4.
ELECTRICAL PARTS LIST ............................... 19
