SERVICE MANUAL - Nexo

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NXAMP4x4q) Fasten the wires (WK17090 and WK17110) with a cordholder at the hole of the OPT-AN board. Then connectthe flat cable (WK02120). (Fig. 30)r) Fasten the wires (WK02080, WK17090, WK17100,WK17110 and WK02070) with a cord holder at the closearea to the OPT-AN circuit board. (Fig. 30)s) Fasten the wires (WK68740, WK68760 and WK68770)with a cord holder. (Fig. 30)t) Bend the flat cable as shown in the figure. (Fig. 30)u) Bend the flat cable to prevent it from touching the topcover. (Fig. 31, 32) t)u)q)s) r)q)q)Fig. 30 Fig. 31 Fig. 32 20
NXAMP4x48. Color of the connectors connected to theconnector CN012–CN015Connect the connector assembly from the PA unit to theCONTROL circuit board as shown in the figure below.(Fig. 33) CN012REDCN013BLUECN014YELLOWCN015GREENFig. 33 9. Change of the destinationSet the knob position of the switch SW001 on theCONTROL circuit board as shown in the figure below.(Fig. 34, 35) U/J destination CHN destination Switch knobSwitch knobFig. 34 Fig. 35 21
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 and 8: NXAMP4x4■ OVERALL ASSEMBLY WIRING
Page 9 and 10: NXAMP4x43. Wiring of the FANConnect
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: NXAMP4x4o) Fasten the wires (WK0208
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
Page 59 and 60: NXAMP4x4• PSANHA, PSANHB Circuit
Page 61 and 62: NXAMP4x4• PSANHA, PSANHB Circuit
Page 63 and 64: NXAMP4x4• NX-DFLT Circuit BoardEx
Page 65 and 66: NXAMP4x43. Operation3-1. Entry of t
Page 67 and 68: NXAMP4x4Switch the GPI jig to the G
Page 69 and 70: NXAMP4x44-15. ANALOG testPress the
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NXAMP4x4■ 71
Page 73 and 74:
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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Page 119 and 120:
Page 121 and 122:
Page 123 and 124:
NXAMP4x4PAANHREF NO. PART NO. DESCR
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Page 127 and 128:
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
Page 153:
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SERVICE MANUAL - Nexo

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