SERVICE MANUAL - Nexo

NXAMP4x48. Upper left (CH1) PA unit(Time required: about 15 minutes)8-1. Remove the top cover and the NX-DFLT card.(See procedure 1.)8-2. Remove the CONTROL circuit board and the OPTangle. (See procedure 2.)8-3. Disconnect the connector assemblies which connectsthe upper left PA unit and other units. (Fig. 7)8-4. Remove the four (4) screws marked [820A], andremove the four (4) screw covers marked [810A].(Fig. 7)8-5. Remove the six (6) screws marked [270]. The upperleft PA unit can then be removed. (Fig. 7)9. Upper right (CH2) PA unit(Time required: about 15 minutes)9-1. Remove the top cover and the NX-DFLT card.(See procedure 1.)9-2. Remove the CONTROL circuit board and the OPTangle. (See procedure 2.)9-3. Disconnect the connector assemblies which connectsthe upper right PA unit and other units. (Fig. 7)9-4. Remove the four (4) screws marked [820B], andremove the four (4) screw covers marked [810B].(Fig. 7)9-5. Remove the six (6) screws marked [300]. The upperright PA unit can then be removed. (Fig. 7) PA unit [820A][810A][810A]PA unit [270][810B][820B][810B][300][270]: BIND HEAD TAPPING SCREW-B 4x8 MFZN2B3 (--) [300]: BIND HEAD TAPPING SCREW-B 4x8 MFZN2B3 (--) [810A]: SCREW COVER T5N (--) [810B]: SCREW COVER T5N (--) [820A]: BIND HEAD TAPPING SCREW-B 3x8 MFZN2B3 (--) [820B]: BIND HEAD TAPPING SCREW-B 3x8 MFZN2B3 (--) Fig. 7 31