Accuphase E-550, Service Information

Page 1: ...uthorized Technical Service Only These servicing instructions are for use by qualified personnel only To reduce the risk of electric shock do not perform any servicing other than that contained in the...

Page 2: ...9045 04 Bottom Plate 155 0090 02 Foot 238 0023 00 Sub Panel 134 0154 02 Panel End cap L L 132 0127 04 Side Panel 139 0043 02 Side Panel 139 0043 02 Top Plate 150 0083 02 Head Phone Jack 302 1204 00 He...

Page 3: ...Cap R 132 0128 04 R 4 Front Glass 172 0140 03 5 Decoration Screw 630 0307 14 Washer 637 9045 04 6 Push button 388 5062 03 POWER Coil Spring 285 1016 04 Frame 113 0130 04 E ring 647 1054 00 1pce 1pce 1...

Page 4: ...critical components for safety Replacement must be made with identical parts of special part number Head Phone Assembly Ass y 716 0733 00 Power Amp Assembly R Ass y R 717 0087 00 Mother Board Assembly...

Page 5: ...ts for safety Replacement must be made with identical parts of special part number Knob Base VOLUME 170 0071 04 mark parts not supplied Indicator 173 9084 03 Meter Lamp Assembly Ass y 723 0117 00 Pilo...

Page 6: ...onductor 3 conductor 3 conductor 20pcs 4pcs NO PL1 4 F1 VR1 C1 4 C8 11 Packing Material Description PC Board for Balance Inpnt Assembly VI Assembly IV Assembly Mother Board Assembly In rush Protector...

Page 7: ...RD142EA100JFS 10 1 4W R48 49 72 73 RD142CA332J 3 3k 1 6W R51 55 59 63 67 70 RD142CA331J 330 1 6W R53 60 65 68 71 RD142CA100J 10 1 6W R61 RD142CA273J 2 7k 1 6W Metal Film Resistor R4 RN142CK1743F 174k...

Page 8: ...2 43 CE04W1E390LXVE 39uF 25V Polyester Capacitor C8 33 CQ922M1H473J B 0 047pF 50V C13 14 38 39 CQ922M1H101K B 100pF 50V C22 48 CQ922M1H223J B 0 022pF 50V Ceramic Capacitor C20 44 CC14CH1H120JS 12pF 50...

Page 9: ...4HC14P IC9 TC74HC132AP IC Protector F1 3 310 8152 00 IC F2 4 310 8202 00 Reray RELAY1 362 1212 00 Electorlytic Capacitor C1 3 CE04W1A472VK 4700uF 10V C2 CE04W1E472VK 4700uF 25V C4 5 CE04W1E222KMG 2200...

Page 10: ...308 0417 00 Relay RELAY1 11 362 1212 00 Terminal TM1 6 314 0539 04 Rotary Switch S1 3 336 4817 00 S2 336 3903 00 Push Switch S4 5 6 7 8 9 354 1111 00 FET Q1 2 2SK2541 Carbon Film Resistor R1 3 RD142CA...

Page 11: ...onnector Board Assembly 716 0735 00 Ass y Volume Assembly 716 0732 00 Ass y K1 PC Board 115 1659 00 PC Connector Plug K1 308 0508 00 Variable Resistor VR1 575 2026 00 VR1 PC Board 115 1660 00 PC Head...

Page 12: ...C2 29 CQ93PP2A471JM F 470pF 100V Capacitor C6 24 CQ922NG2A562JAPSF 1 500pF 100V C14 CQ921PG2A152JDTNF 1 500pF 100V R1 2 3 16 25 47 RD142EA102J 1k 1 4W 56 61 67 68 R4 5 6 63 65 69 RD142EA331J 330 1 4W...

Page 13: ...gital Transistor X1 2 RN2203 X3 RN1202 Electorlytic Capacitor C4 CE04W1C220VRE 22uF 16V C5 CE04W1V4R7VRE 4 7uF 35V C7 CE04W1A221VK 100uF 6 3V Polypropylen Capacitor C1 2 CQ922N2A223JAPHF 0 022uF 100V...

Page 14: ...RD92AK05C103J18 IC Soket 300 1101 00 IC Connector Jack K1 307 0410 00 K2 307 0912 00 K3 307 1305 00 Connector Plug K4 308 2501 00 Crystal XTAL1 527 0025 00 Diode D1 2 3 4 5 MA165 IC1 TMC87PH40AN IC2...

Page 15: ...3 309 0962 04 Ass y K4 309 3462 04 Digital Transistor X1 2 RN1204 X3 4 RN2226 IC IC1 NJU3715L FET Q1 2 2SK2541 Electorlytic Capactor C4 CE04W1V470VK 47uF 35V Ceramic Capacitor C1 CK92Y5V1H104Z 0 1uF 5...

Page 16: ...099 U L5Y100 D L5Y001 080 E L5Y081 099 U L5Y100 Jumper Wire 20mm 1pce No E 550 001 BALANCE INPUT AMP ASS Y 712 0097 00 Ass y K2 K2 Add the jumper to between the K2 connector of 4 pin and D1 cathode s...

Page 17: ...ly 713 0014 00 Shield Cover 231 0068 03 Service Information No E550 002 Accuphase Laboratory Inc Issued 2006 2 2 MODEL E 550 SUBJECT Right and left of VI Ass y Attachment position VI Ass y Details Kee...

Page 18: ...sembly shown in the figure is exchanged See Fig 2 3 IC VI Ass y IC 2 3 Fig 1 Fig 2 VI Assembly 713 0013 00 Fig 3 PreparationParts 1 IC OPA2228P 8pcs for IC6 7 9 10 2 Cool Sheet 240 3001 04 4pcs This m...

Page 19: ...of V O meter 60mV Bias Current of R ch Power Amp Rch VR1 for Rch Power Amp Assembly Ass y 717 0087 00 Bias Current Test Point Power Amp Assembly Ass y 717 0087 00 Bias Current Test Point Protection As...

Page 20: ...fuse of a proper value is used The AC Cable which suits voltage is used 19 In rush Protector Ass y Ass y D 100V 716 0728 01 U 120V 716 0728 02 E 230V 716 0728 03 Power Transformer 510 3027 00 K3 K5 K1...

Page 21: ...Poly Bag for Owner s Manual 812 2435 04 Bottom Pad R R 803 0392 00 Top Board 803 0033 14 Outer Carton Box 800 0271 04 Cover 810 4843 04 Top Pad R R 803 0390 00 Top Pad F F 803 0389 00 Bottom Pad F F 8...

Page 22: ...one Ass y K2 K3 K1 716 0735 00 Connector board Ass y K1 723 0118 00 Selector LED Ass y K1 K2 K3 K4 719 0058 00 Power supply Ass y K1 K2 K3 K4 K5 K6 P1 P2 P3 P4 P5 P6 720 0075 00 Protection Ass y K1 K2...

Page 23: ...H RCH MAININ 2 2k R4 2 2k R3 to IO relay K4 BAL_L BAL_R LGND RGND 1 2 3 4 K3 308 0407 00 LCH RCH GND GND to Power Amp K2 15V 15V Ext CDB LB PreOut 12V 15V 15V PreLout PreRout GND GND to Mother K4 Ext...

Page 24: ...C5 NJU7301D 100k R25 100k R18 15V 15V D2 MA165 D1 MA165 15V 15V 22u 16V C12 22u 16V C14 Q2 2SK2541_ Q1 2SK2541_ 100k R26 100k R19 100n C13 100n C11 5V 12 13 15V 15V IN1 1 D1 2 S1 3 V 4 GND 5 S4 6 D4 7...

Page 25: ...11 15Vb 15Vb Q10 2SK2541_ 10k R64 D12 MA165 10k R63 5Vb 12p C44 100 R54 100 R55 1 8 2 3 4 IC6A NJM4580D D 15Vb 15Vb D10 MA165 D11 MA165 4 7 R58 4 7 R59 D E Q7 2SC2547_ D E Q9 2SA1085_ S Y Q6 2SK330_ S...

Page 26: ...o1 1to2 12V Line1 Tuner CD Line2 Mono Bal Src Mon Recoff 1to2 M1 M2 2to1 to Mother K8 1 2 3 4 5 6 7 8 9 10 11 12 K2 308 1206 00 K1 11 14 2 5 I O R E L A Y A S S Y 7 1 6 0 7 3 1 0 0 D1 S1ZB20 0 47 R1 1...

Page 27: ...VCC IoutL IoutR GND 1 VDD 20 EN 2 RST 19 LAT 3 CLK 18 SO 4 SIN 17 O8 10 O1 11 O7 9 O2 12 O6 8 O3 13 O5 7 O4 14 PGD 5 CM2 6 PGD 16 CM1 15 IC5 TD62C851P 100n C16 VCC GND 1 VDD 20 EN 2 RST 19 LAT 3 CLK...

Page 28: ...C H A S S Y 7 1 6 0 7 3 0 0 0 2 7 1A 1B 2A 2B 3A 3B 4A 4B 5A 5B 6A 6B 7A 7B 8A 8B 9A 9B 10A 10B 11A 11B 12A 12B 13A 13B 14A 14B 15A 15B 16A 16B K2 307 3204 00 1A 1B 2A 2B 3A 3B 4A 4B 5A 5B 6A 6B 7A 7B...

Page 29: ...A1507_ S T Q3 2SC3902_ Q28 2SC4793_ Q1 2SA1837_ 2W 0 22 R66 2W 0 22 R9 2W 0 22 R64 2W 0 22 R62 2W 0 22 R8 2W 0 22 R7 47n C5 47n C26 1 2 K2 308 0206 00 1 8 2 3 4 IC1A UPC4570C 7 6 5 IC1B UPC4570C 1 2 K...

Page 30: ...p K3 1 2 3 4 5 6 7 8 9 K1 308 0905 00 D1 BR1111R B C D E D2 BR1111R B C D E D3 BR1111R B C D E D4 BR1111R B C D E D5 BR1111R B C D E D6 BR1111R B C D E D7 BR1111R B C D E D8 BR1111R B C D E D I S P L...

Page 31: ...G2 6 I2 7 O1 8 V3 9 V4 10 IC4 LB1642 VCC CS_EEP SK_EEP DI_EEP DO_EEP 100n C7 VCC VR VR_UP VR_DOWN VR LATATN LATMON EN_ZERO CS_EEP SK_EEP DI_EEP DO_EEP VR_UP VR_DOWN VR VR Buf_R Buf_L LATATR LATATL AD...

Page 32: ...31 BLOCK DIAGRAM...

Page 33: ...20 20 000Hz 0 05 with 2 ohm load 0 02 with 4 to16 ohm load 0 01 HIGH LEVEL INPUT POWER INPUT For rated continuous average output 20 20 000Hz 0 0 2dB For 1 Watt output 2 150 000Hz 0 3 0dB 140 with 8 o...