Disassembly
assembly has an electrical connector to the main board. Be careful not to damaged connector.
3. Remove Main Board. Disconnect power supply connector from main board. Disconnect GPIB and Oscillator In rib-
bon cables. Disconnect fan power cable from main board. Loosen and remove nuts securing Modulation In and
Ext Trig BNC connector to rear panel. Remove screw below GPIB board securing main board to chassis. Slide main
424 Agilent 33500 Series Operating and Service Guide