TB8100 Service Manual Power Management Unit Fault Finding 219
© Tait Electronics Limited September 2006
13.3 Test Equipment
The following test equipment is required for carrying out the PMU fault
finding procedures:
■ PC with the latest version of the TB8100 Service Kit (refer to “Software
and Firmware Compatibility” on page 220).
Note The Calibration Kit is also installed when you install the Service
Kit. If you need to reprogram any factory parameters into the
PMU, you will need to use a dongle with the Calibration Kit.
■ Operational and calibrated reciter and PA (refer to “Software and
Firmware Compatibility” on page 220).
■ TB8100 subrack complete with control panel, front panel, and
appropriate interconnecting cables.
■ Variable voltage DC power supplies:
■ For testing the 12V and 24V DC converters and AC converter,
power supplies capable of providing 0V to 30V at 3A. Testing the
DC converter requires one power supply, testing the AC converter
requires two.
■ For testing the 48V DC converter, a power supply capable of
providing 0V to 60V at 3A.
■ Isolation transformer or RCD (residual current device).
■ Variable load, 2W dissipation minimum (resistive or electronic
preferred).
■ Multimeter.
The following items of equipment are also specifically required for testing
the AC converter (refer to “AC Module” on page 240 for more details):
■ Modified PFC control card (refer to “Modifying the PFC Control Card”
on page 246).
■ Oscilloscope.
■ Two 1A rectifying diodes (Tait IPN 001-00106-10).
■ One high power resistor (greater than 1W 220Ω ).