SERVICE MANUAL - Nexo

More documents

Recommendations

Info

NXAMP4x4WARNING: This product contains chemicals known to the State of California to cause cancer, or birth defects or other reproductive harm.DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHAT SOEVER!Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose eyes to solder/fluxvapor!If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling food.IMPORTANT NOTICE FOR THE UNITED KINGDOMConnecting the Plug and CordWARNING: THIS APPARATUS MUST BE EARTHEDIMPORTANT. The wires in this mains lead are coloured in accordance with the following code:GREEN-AND-YELLOW: EARTHBLUE:NEUTRALBROWN:LIVEAs the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifying the terminals in yourplug, proceed as follows:The wire which is coloured GREEN and YELLOW must be connected to the terminal in the plug which is marked by the letter E or by the safetyearth symbol or colored GREEN or colored GREEN and YELLOW.The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK.The wire which is coloured BROWN must be connected to the terminal which is marked with the letter L or coloured RED.■ WARNING Components having special characteristics are markedinstalled.and must be replaced with parts having specification equal to those originally2
NXAMP4x4■ PANEL LAYOUT • Front Panel Power switch Amplifier indicators LCD display Encoder Navigation buttons (A & B) Volume indicators Mute buttons Select buttons Channel indicators Air intakes Screw holes for handles • Rear Panel Mains connectors Balanced audio inputs with link Expansion slot Power outputs RS-232 Firmware update port GPIO port Rear end mounting holes 3
Page 1: SERVICE MANUAL■ CONTENTS PANEL LA
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 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
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
Page 71 and 72:
NXAMP4x4■ 71
Page 73 and 74:
NXAMP4x4 73
Page 75 and 76:
NXAMP4x4 7
Page 77 and 78:
NXAMP4x4
Page 79 and 80:
NXAMP4x41-5. Other0 dBu is defined
Page 81 and 82:
NXAMP4x44-7. Channel separation1) G
Page 83 and 84:
NXAMP4x4■
Page 85 and 86:
NXAMP4x4
Page 87 and 88:
NXAMP4x4
Page 89 and 90:
NXAMP4x45) Click the [Create] butto
Page 91 and 92:
NXAMP4x4 91
Page 93 and 94:
NXAMP4x4■ OVERALL ASSEMBLY 1/2 8
Page 95 and 96:
NXAMP4x4■ OVERALL ASSEMBLY 2/2 2
Page 97 and 98:
NXAMP4x4REF NO. PART NO. DESCRIPTIO
Page 99 and 100:
Page 101 and 102:
NXAMP4x4■ LOCATIONS OF HEAT SINK
Page 103 and 104:
NXAMP4x4■ HEAT SINK UNIT L100 PS
Page 105 and 106:
NXAMP4x4■ HEAT SINK UNIT L60 PSA
Page 107 and 108:
NXAMP4x4■ HEAT SINK UNIT L50 PSA
Page 109 and 110:
NXAMP4x4■ HEAT SINK UNIT MP-5 PA
Page 111 and 112:
NXAMP4x4■ ELECTRICAL PARTS REF NO
Page 113 and 114:
Page 115 and 116:
NXAMP4x4CONTROLREF NO. PART NO. DES
Page 117 and 118:
Page 119 and 120:
Page 121 and 122:
Page 123 and 124:
NXAMP4x4PAANHREF NO. PART NO. DESCR
Page 125 and 126:
Page 127 and 128:
Page 129 and 130:
Page 131 and 132:
NXAMP4x4CIRCUIT DIAGRAM■ CONTENTS
Page 133 and 134:
KJIHGFEDCBANXAMP4x4■ WIRING DIAGR
Page 135 and 136:
HGFEDCBANXAMP4x4■ BLOCK DIAGRAM 2
Page 137 and 138:
HGFEDCBANXAMP4x4■ BLOCK DIAGRAM 4
Page 139 and 140:
QPONMLKJIHGFEDCBANXAMP4x4■ CIRCUI
Page 141 and 142:
Page 143 and 144:
Page 145 and 146:
HGFEDCBANXAMP4x4■ CIRCUIT DIAGRAM
Page 147 and 148:
Page 149 and 150:
LKJIHGFEDCBANXAMP4x4■ CIRCUIT DIA
Page 151 and 152:
LKJIHGFEDCBANXAMP4x4■ CIRCUIT DIA
Page 153:
show all

SERVICE MANUAL - Nexo

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?