5. Disconnecting  the signal  and output  PWBs 
5-l.  Remove  the  three  screws  off the  optical  mechanism  assembly. 
5-2.  Remove  the  two  screws  off  the  bottom  cabinet. 
5-3.  Remove  the  screw  off the  signal  PWB  assembly. 
5-4.  Remove  the  three  screws  off  the  output  PWB  assembly. 
5-5.  Disconnect  the  connectors  of  the  signal  PWB  and  output  PWB  assemblies. 
5-6.  Take  up  and  away  the  PWB  assemblies. 
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