Accuphase DP-77, Service Information

Page 1: ...rt number 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 operating instructions...

Page 2: ...ation Screw 630 0304 14 Washer 637 9045 04 Sub Panel not supply 134 0138 03 Bottom Plate 155 0078 02 Top Plate Assembly Ass y 150 0069 12A Top Plate B B 150 0053 03 EXPLANATION OF SURFACE PARTS Push b...

Page 3: ...ation Screw 630 0304 14 5 1 Washer 637 9045 04 5 2 Nut 633 2032 02 6 Front Glass 172 0116 03 1pce 1pce 1pce 1pce 2pcs 2pcs 2pcs 1pce 6 Display Assembly 723 0081 00 Ass y 6 1 Fixed Bracket 159 0097 03...

Page 4: ...Assembly DAC Ass y 725 0041 00 DSP Assembly DSP Ass y 724 0055 00 Power Transformer 510 4031 00 Power Switch Assembly Ass y 726 0143 00 Mother Board Assembly Ass y 726 0144 00 Power Transformer 510 4...

Page 5: ...button 5 gang 5 388 5059 13 Explanation of Front panel back view mark parts not supplied Display Assembly Ass y 723 0081 00 Front Glass 172 0116 03 Filter 179 0029 04 Display Tube FL1 434 0013 00 Pus...

Page 6: ...04 637 9045 04 604 0408 02 638 0041 02 820 2213 00 820 0213 00 821 0011 00 821 0010 00 680 1404 00 680 2401 00 680 3402 00 729 0028 00 569 0006 00 685 0416 10 685 0417 10 254 2015 04 254 2011 00 Rema...

Page 7: ...there is the necessity for solder perform solder iron point temperature before and after 270 degrees C Please do not apply the solder iron point to same pattern to be careful repeatedly for power not...

Page 8: ...2CA102J 1k 1 6W R102 RD142CA393J 39k 1 6W R104 107 RD142CA105J 1M 1 6W Resistor Array RA1 RD92AK05C473J18 RA2 RD92AK16C473J18 RA3 RD92AK13C473J18 RA4 RD92AK04C473J18 RA5 RD92AK09C473J18 DSP Assembly 7...

Page 9: ...18 219 CE04W1C101CA 100uF 16V C201 202 CE04W1E332CZ 3 300uF 25V C203 204 205 CE04W1A682VR 100uF 16V C206 CE04W1H101VR 100uF 50V C207 208 209 210 CE04W1C332VR 3 300uF 16V C216 217 220 CE04W1H100VR 10uF...

Page 10: ...R4 RD142CA102J 1k 1 6W Resistor Array RA1 10 20 RD92AK06C473J18 RA2 3 RD92AK04C104J25 Display Assembly 723 0081 00 Ass y Rubber Cushion 250 2131 04 Connector Jack Ass y K1 309 2543 04 Ass y K2 3 309...

Page 11: ...utton PLAY PAUSE FR FF Button FR FF PROGRAM Button Index serach button TRACK INDEX button STOP button Time mode selector button Output Level button Direct play button CD PROC selector button CD PROC T...

Page 12: ...nput An output may be interrupted when it is made to operate Countermeasure as follows change the resistor value of R105 R108 from 150 to 330 that located on DSP Ass y 724 0055 00 POWER ON DSP Ass y I...

Page 13: ...C Cord J type 680 1404 00 U type 680 2401 00 E type 680 3402 00 Photo is shown Japanese model wiring 120V 230V 2 3 4 WHT BLU WHT BLU BRN ORG YEL ORG BLK ORG YEL BRN YEL 100V WHT BLK BLK BRN 1 120V 230...

Page 14: ...sheet 180 2039 04 Tray Sub Fixed Bracket 244 0090 04 Wrapping Sheet 810 4545 04 Poly Bag for Owner s Manual 812 2435 04 Battery R6 UM 4 4 569 0006 00 Cover for AC Cord RC 20 Audio Cord 810 2030 04 Acc...

Page 15: ...4...

Page 16: ...LAY Ass y 723 0081 00 K3 K2 K1 MOTHER BOARD Ass y 726 0144 00 K701 K101 JK1 JK2 K102 JK3 K104 K103 JK4 K3 K2 K1 DAC Ass y 725 0041 00 CN005 BASE UNIT 731 0007 00 CN503 CN901 CN902 CN903 CN904 CN701 GN...

Page 17: ...1 434 0013 00 VCC VCC VCC 33V 33V F2 F1 33V GND to POWER SUPPLY ASSY C5 104 C6 104 33V 1 2 3 4 S1 354 1116 00 1 2 3 4 S2 354 1116 00 1 2 3 4 S3 354 1116 00 1 2 3 4 S4 354 1116 00 1 2 3 4 S5 354 1116 0...

Page 18: ...Hz R104105 D101 HVM17 VCC Q101 2SC982TM_ R101 102 C102 2R2 1H R102 393 R103 102 C103 224 VCX44E PD 5V OSC 5V FIL C101 103 GND 1 2 3 IC101A TC74HC00AF R105 471 R109 103 C107 680 C108 4R7 XTAL102 527 00...

Page 19: ...FC0 3 C2 4 MCK 5 SCK 6 FSYK 7 SDAT 8 V 9 C 10 U 11 C15 12 FC1 24 M2 23 M1 22 M0 21 TXP 20 VD 19 GND 18 TXN 17 RST 16 CBL 15 C9 14 C8 13 IC3 CS8404A CS REVA1 SACDW TX 4OL RX 4OR RX 4OW RX VCC VCC 8404...

Page 20: ...01 1C C214 101 1C C213 101 1C C212 101 1C C210 332 1C D110 EK03 D111 EK03 R101 682 R102 101 R103 104 R104 101 R105 101 R106 183 R107 102 R108 335 D112 MA165 D113 MA165 3 4 IC101B TC74VHC14F 1 2 IC101A...

Page 21: ...3 103 1C C100 103 1C R12 101 RESET CLATCH CCLOCK CDATA C94 473K 2E C65 471J 2A C63 471J 2A C19 221 1H C27 221 1H C21 221 1H C29 221 1H D6 LN1VB60 C26 100 1E DGND 1 MCLK 2 CLAT 3 CCLK 4 CDAT 5 INT4 6 I...

Page 22: ...TC74HCU04AF X1 RN1202 C8 103 VCC OPTICAL INPUT COAX DIS s1r COAX RX s2r OPT RX s1w 5 6 IC3C TC74HCU04AF 9 8 IC3D TC74HCU04AF 11 10 IC3E TC74HCU04AF to MOTHER BOARD Ass y K3 C9 103 VCC R7 221 13 12 IC3...

Page 23: ...12 Q11 Q10 Q9 Q8 Q22 Q21 Q20 Q19 Q18 Q17 Q16 SDATA SBCK SLCK0 C100 104 C101 104 C102 104 C103 104 3 4 IC103B TC74VHC14F 1 2 IC103A TC74VHC14F SLCK2 SLCK1 5 6 IC103C TC74VHC14F SLCK1 13 12 IC103F TC74V...

Page 24: ...CK2 SLCK3 SLCK4 Q23 SLCK3 SLCK4 M o t h e r B o a r d S I P O 726 0144 00 1 OP1 4I OP1 EI1 OP1 EI2 D5V OP2 4I OP2 EI1 OP2 EI2 EX EI1 EX EI2 EX EO ESEL COAX OPT RESET 1 2 3 4 5 6 K1 308 0609 00 CD CD X...

Page 25: ...24...

Page 26: ...2 8224MHz 1 bit 2 channel DSD 24 bit MDS Plus converter 0 5 50 000Hz 0 3dB 0 0008 20 to 20 000Hz 114dB 110dB 24 bit input low pass filter off 108dB 20 to 20 000Hz BALANCED 2 5V at 50 ohms balanced XL...