Samsung CM1929, Service Manual

Page: 10 / 43

9
4. Disassembly and Reassembly
4-1 Replacement of Magnetron, Motor Assembly and Lamp
Remove the magnetron including the shield case,
permanent magnet, choke coils and capacitor (all
of which are contained in one assembly) .
1. Remove the outer panel .
NOTE: Before servicing, make sure to discharge electric
charge remaining on the high voltage capacitors
or wait for more than 5 min .
2. Remove the back cover .
3. Disconnect all lead wires from the magnetron .
4. Remove screws securing the duct-MGT and
duct-fan .
5. Remove the nut-flanges securing the magnetron by
using a box wrench .
6. Take out the magnetron very carefully .
NOTE1: When removing the magnetron, make sure that
its antenna does not hit any adjacent parts, or it
may be damaged .
NOTE2: When replacing the magnetron, be sure to
remount the magnetron gasket in the correct
position and make sure the gasket is in good
condition .
(See page 19 for adjustment instructions .)
Magnetron
Duct-Fan
Nut-Flange
Duct-MGT-L
Duct-
MGT-R
4-2 Replacement of High Voltage Transfomer
1 . Discharge the high voltage capacitor .
2 . Disconnect all the leads .
3 . Remove the mounting bolts .
4. Reconnect the leads correctly and firmly.
H. V. Trans
4 Mounting Bolts