R&S CMU MODULE Replacement
1100.4903.82 3.65 E-5
Replacing the POWER SUPPLY
(see chapter 5, spare part list, Current No. 1000+1010 and explosion drawing 1100.0008.01 D sheet 2)
The POWER SUPPLY is fitted at the rear of the instrument frame of the R&S CMU. For replacement
proceed as follows:
Removing the POWER SUPPLY
Switch off the instrument and pull the mains plug.
Unscrew the ten screws at the rear of the POWER SUPPLY. Pull out the power supply approx.
10 mm to 20 mm towards the rear, slightly tilt towards the bottom and then pull out completely.
Pull off cable from powersupply to option R&S CMU-B66/B68, if fitted (modell SN250 (1091.1982.00
only)
Installing the new POWER SUPPLY
Install the new POWER SUPPLY in the reverse order.
Note: Make sure that the 96-pin connector to the MOTHERBOARD1 locks in place correctly and
the cable to option R&S CMU-B66/68 is fitted (only with model SN250 1091.1982.00).
Connect the instrument to the mains and switch on.
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