8. All being well, connect another jumper wire from the +60V rail to the PCB point marked C on Diagram 2. Check the
waveform from the output of the IGBT. To do this, monitor the middle pin of the IGBT marked F on Diagram 2. You should
have a waveform similar to that shown below.
9. Move the oscilloscope's Gnd reference to the normal ground point of the amplifier; i.e., the four black wires (shown blue in
Diagram 1). When you turn on the DC power supply, the current should have risen to about 150 mA. You should see square-
Содержание Pulse 2X1100
Страница 14: ...For HT For 15V Note the gain on the V Div has been increased to give a better view...
Страница 20: ...z Operation Test Pass 3KVA z Leakage Test Pass 3 mA 2002 2005 Crown Audio Inc...
Страница 46: ...ZM10091 01 MANUAL CROWN P4X300 V1 0 1 ZZ2893R FILTER 100PF RFI TAPED 8 RF1 RF2 RF3 RF4 RF5 RF6 RF7 RF8...