your area. Before you purchase check the electrical parts list for the proper value rating, tolerance and description.
5.5.2ORDERING PROCEDURE : When ordering replacement parts from B+K Inc. please include the following minimum information :
1.Power Supply Type ( 1794 ).
2.Power Supply Serial Number ( For example, 03080001 ).
3.A description of the part ( if electrical include the circuit number ).
5.5.3CIRCUIT BOARDS : If a circuit board is damaged beyond repair, the entire assembly including all
1.Disconnect all Sockets & leads connected to the board ( both soldered lead connections and solderless pin connections ).
2.Remove all mounting screws holding the board in the instrument.Remove any knobs, etc. that would prevent the board from being lifted out of the instrument.
3.Lift the circuit board out of the unit. Do not force or bend the board.
4.To replace the board, reverse the order of removal. Use care when replacing pin connectors. If forced into place incorrectly positioned, the pin connectors may be damaged.
5.5.4TRANSISTORS AND IC's : Transistors and IC's should not be replaced unless they are actually defective. If removed from their sockets during routing maintenance, return them to their original sockets. Unnecessary replacement or switching of semiconductor devices may affect the calibration of the instruments. When a transistor is replaced, check the operation of the part of the instrument that may be affected.
Replacement semiconductors should be of the original type ora direct replacement. When removing
An extracting tool should be used to remove the 14 pin integrated circuits to pre- vent damage to the pins. If an extracting the pins. Pull slowly and evenly on both ends of the IC. Avoid having one end of the IC disengage from the socket before the other end.
14
