R&S CMU MODULE Replacement
1100.4903.82 3.53 E-5
Replacing the MODULES: DSP MODULE0/1, IQOUT MODULE,
BLUETOOTH MODULE, SPEECH CODEC R&S CMU-B52 (INCLUDES
DSP MODULE3) in the UNIV. SIGN. UNIT Var02
(see chapter 5, spare part list, Current No. 243X (DSP MODULE), 2440 (SPEECH CODEC), 2420 (I/Q
O
UT MODULE, 2450 (BLUETOOTH MODULE), and explosion drawing 1100.5216.01 D sheet 2)
The sandwich modules DSP MODULE0, DSP MODULE1, IQOUT MODULE, BLUETOOTH MODULE
and OPTION SPEECH CODEC R&S CMU-B52 (includes DSP MODULE3) are installed in the UNIV.
SIGN. UNIT as plug-in modules. For replacement proceed as follows:
Opening the instrument and removing the modules
Switch off the instrument, pull the mains plug and unscrew the rear-panel feet.
Place the instrument onto the front carrying handles, push the tube upwards and take off.
After unscrewing the two countersunk screws at the top left instrument frame slightly lift the cover at
the top of the instrument, slightly shift towards the right and lift off.
Take out the module using the two levers on the right and left.
Take off the cover on the higher side (B-side) by loosening the cover screws.
Carefully lever out the respective sandwich module (using a pull-out tool
) (see chapter 5, drawing
1100.5216.01 D sheet 2).
Installing the new sandwich module and completing the instrument
Replace by new module.
Caution!
Take care to insert the respective module (DSP MODULE0 and DSP MODULE1
modules are of the same design) with the correct polarity (see chapter 5,
drawing 1100.5216.01 sheet 2).
Replace the cover and fasten with screws.
Insert the Option UNIV. SIGN. UNIT into the instrument in the reverse order.
Complete the instrument without causing damage to the cables.
Connect the instrument to the mains and switch on.
available in CMU-Service Kit CMU-Z3 (1100.7690.02)
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