SERVICE MANUAL - Nexo

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NXAMP4x42. Wiring of the power switch1) Install the power switch to the front panel with itsterminals set downward. (Fig. 4, 5) Fig. 4 Fig. 5 2) Confirm that the power switch is set to the off position asshown in the figure. (Fig. 6)3) Twist the wires of the power switch assembly more thanthree times.4) Connect the power switch connector assembly to theconnector (CN103) of the PSANHB circuit board. (Fig. 7) Check Fig. 6 Fig. 7 8
NXAMP4x43. Wiring of the FANConnect the wire of the FAN to each connector. (Fig. 8) Fig. 8 4. Attaching of the support cushionAttach the support cushion (WN15950) at the specifiedarea on the pattern side of the CONTROL circuit board.(Fig. 9)Note: Be sure to remove the oil and the dust, etc. onthe attaching surface before attaching the supportcushion. Fig. 9 9
Page 1 and 2: SERVICE MANUAL■ CONTENTS PANEL LA
Page 3 and 4: NXAMP4x4■ PANEL LAYOUT • Front
Page 5 and 6: NXAMP4x4■ SERVICE PRECAUTIONS Saf
Page 7: NXAMP4x4■ OVERALL ASSEMBLY WIRING
Page 11 and 12: NXAMP4x4d, e) Fix the wires to the
Page 13 and 14: NXAMP4x4CN401YELLOW Fig. 20 NOTE:
Page 15 and 16: NXAMP4x4b-3) Then fasten these wire
Page 17 and 18: NXAMP4x4At the stage as shown in Fi
Page 19 and 20: NXAMP4x4o) Fasten the wires (WK0208
Page 21 and 22: NXAMP4x48. Color of the connectors
Page 23 and 24: NXAMP4x412. Confirmation of Switch
Page 25 and 26: NXAMP4x4■ DISASSEMBLY PROCEDURES
Page 27 and 28: NXAMP4x43. PSANHA Circuit Board(Tim
Page 29 and 30: NXAMP4x45. PSANHB Circuit Board(Tim
Page 31 and 32: NXAMP4x48. Upper left (CH1) PA unit
Page 33 and 34: NXAMP4x412. Front Panel Assembly(Ti
Page 35 and 36: NXAMP4x416. Lower left DC Fan(Time
Page 37 and 38: ■ LSI PIN DESCRIPTION NXAMP4x4
Page 39 and 40: NXAMP4x4CS4272-CZZR (X8487A0)CODECC
Page 41 and 42: NXAMP4x4NJU7630-M (X8682A0)Regulato
Page 43 and 44: NXAMP4x4SN74LVC157APWR (X6786A0)Dat
Page 45 and 46: NXAMP4x4• INANH Circuit Boardto C
Page 47 and 48: NXAMP4x4• CONTROL Circuit BoardAA
Page 49 and 50: NXAMP4x4• CONTROL Circuit BoardBP
Page 51 and 52: NXAMP4x4• OUTANH Circuit BoardPat
Page 53 and 54: NXAMP4x4• PN-AN Circuit BoardAEnc
Page 55 and 56: NXAMP4x4• PN-AN Circuit BoardBPat
Page 57 and 58: NXAMP4x4• PAANH Circuit BoardAA't
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NXAMP4x4• PSANHA, PSANHB Circuit
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NXAMP4x4• PSANHA, PSANHB Circuit
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NXAMP4x4• NX-DFLT Circuit BoardEx
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NXAMP4x43. Operation3-1. Entry of t
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NXAMP4x4Switch the GPI jig to the G
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NXAMP4x44-15. ANALOG testPress the
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NXAMP4x4■ 71
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NXAMP4x4 73
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NXAMP4x4 7
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NXAMP4x4
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NXAMP4x41-5. Other0 dBu is defined
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NXAMP4x44-7. Channel separation1) G
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NXAMP4x4■
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NXAMP4x4
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NXAMP4x4
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NXAMP4x45) Click the [Create] butto
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NXAMP4x4 91
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NXAMP4x4■ OVERALL ASSEMBLY 1/2 8
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NXAMP4x4■ OVERALL ASSEMBLY 2/2 2
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NXAMP4x4REF NO. PART NO. DESCRIPTIO
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NXAMP4x4■ LOCATIONS OF HEAT SINK
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NXAMP4x4■ HEAT SINK UNIT L100 PS
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NXAMP4x4■ HEAT SINK UNIT L60 PSA
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NXAMP4x4■ HEAT SINK UNIT L50 PSA
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NXAMP4x4■ HEAT SINK UNIT MP-5 PA
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NXAMP4x4■ ELECTRICAL PARTS REF NO
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NXAMP4x4CONTROLREF NO. PART NO. DES
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NXAMP4x4PAANHREF NO. PART NO. DESCR
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Page 129 and 130:
Page 131 and 132:
NXAMP4x4CIRCUIT DIAGRAM■ CONTENTS
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KJIHGFEDCBANXAMP4x4■ WIRING DIAGR
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HGFEDCBANXAMP4x4■ BLOCK DIAGRAM 2
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HGFEDCBANXAMP4x4■ BLOCK DIAGRAM 4
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QPONMLKJIHGFEDCBANXAMP4x4■ CIRCUI
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HGFEDCBANXAMP4x4■ CIRCUIT DIAGRAM
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LKJIHGFEDCBANXAMP4x4■ CIRCUIT DIA
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LKJIHGFEDCBANXAMP4x4■ CIRCUIT DIA
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SERVICE MANUAL - Nexo

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