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Arcam A65 User's Manual

1. BASS D Leo Be MF TOR 2PCO 6 gt 47UEL 35V 27 9 45606 C204 206 RV167A 220N 220N PE 10K LIN POT SiG RROT OPL J 8205 ZIRIA 20 170 187 one controls MF E R161 8dB cut boost Gai i 2 HG 8 Li RHG R162 B c208 ol 5 4M7 PP SK162 6 330R 1W CR HPSKT Le abe OV IS R HOT OP R L825CA L825CA 8214 216 100P PP 3KSMF 5 10K LIN POT R236 R237 st wl o 1008 W2 1008 W2 CF 0 TREBLE TUB Pot arrow shows max boost 2PCO LK200 1 2 10MM LINK RV164D LK176 2 R220 4 LIN TIKMF Fit on A65 only 7163 R230 6A360M AVCONTROL Lo R218 R234 47R MF LK168 9K1 M 100KMF OpAz1s4PA C227 L809CA 100P PPW P RV164A LK169 6A360M 83 418v OV SIG
2. a 15V K101 10MM LINK G 1 c101 LK100A L856CA D134 37V 100N CD pus SWTToD 4 2 7 1W CF 4PCO a E 147 K 2K7 1W CF a _ 3WAY CABLE OF 280 8112 peu 7 SW100B 585 100N CD LED RED GRN 3MM 4PCO o Bx 56KME T D131 D129 Ps ES ETT iv 5V6 400MW 1N4008F 4 8K2 MF 18K 470R MF 1N3 PP 15V 0101 0103 m sue 22UEL 37V SK100A 1N4148 1N4148 15v LACSENSE PROTECTION gt 2 5I6 8117 AUXOL D128 e c117 0 g LK103 3 MF SiG T OMMI k 100K MP M uis Es PHONO4G C123 4 6 0V_SIG PHINR 1N4148 1N4148 15v o 47P CD 12 EL 1 1 0130 154 LV SWidoc 00 00V 4PCO R106 R150 1N4003 L 8111 70R FU SW100A 5 4 4 5 SOMME AC Det T 2c C128 R158 149 R153 T ER 8K2 MF 100K MF 1 1W 47K 5 4N7 1N3 8156 8104 OV_HF 51 48 1K5 MR 47K M 22UEL R102 1 z
3. R204 Ad m 208 ios 24K MF 2229 of RV167A 6204 C206 10K LIN 200MIVC 220M SW162A RROT OP L H 0v SIG 2PCO 205 NS LK170 LK171 one controls 4K7 MF 8161 8dB cut boost E 3 330R 1W CF 2 2 tuc 4 El RHC 8162 008 C 4 7 PP 5 162 8 330R 1W 5 HPSKT amp R L FOSSES L825CA L825CA VI5 8 8214 R216 100P PP 3KSMF 5 10K LIN POT R236 R237 wl c 100R W2 100R W2 CF 9 TREBLE Pot arrow shows max boost 2PCO LINK10NP RV164D LK176 1 2 10MM LIN Fit on A65 only Z163A 3 6A360M de 1 6 8230 47R MF LK168 OPA2134PA C227 L809CA 100P PPW 1 1 164 6A360M 15V Ie 1 C216 e 100N c217 1 TOON cBT T5v Rvie4c Z163B 6 60 VOLMOTA161 Sie 7 R231 2W CABLE HOLDER lt gt I C195 58 478 10N CD LK177 RUE 1 OPA2134PA _ C228 10MM LI 1ooP PPW 4 65 oV SIG R239 1 2 VOLUME SNAP OFF BOARD R160 1 0 15v 0164 D165 FIT LINKS FOR 8P PREMUTE 1N4148 1 4148 0V SIG 4 1 7 LK173 1
4. 38V 8 37V E E E lt 5 4 C700 TT C714 _ I C706 100U EL 100V 8701 8702 8715 TOON PE 106 100U 50V YXF LOW 4 M 100R MF 100R MF 47R MF OV HF V OV HF D701 ZENER 400MW 27V 0701 BC556B 0700 0702 556 BC556B E gt SPLS700 ot C720 SK700B 470P CD Q703 0703 2SA970GR 1N4003F SPKSKT_G e Q704 2SA970GR 8798 Oe C708 100P PPW EKE MF 4006 PPW 721 1 4148 470K MF 4 ls SK700C Q714 1 LER SAP15N Y Bias R R727 R 4 0712 SPKSKT G 227 P 9 30RMF T 6 4 2SC2240GR gt R705 100 PE 100V _L 8720 SET BIAS TO 12mV 1008 100N PE 100V 10K R706 1008 MF 26717 0719 Q718 10U EL re 0 BC546B 1 2 e 80546 gt s gt CO 070 TOME TOOK MF 2U2H LAC SMALL RLY G5Z 2AE 1 R730 SK700A 22U SIMIC 2 0703 8742 m 2 4 st cris 4R7 W2 CF SPLE700 270P 100P PPW 100K TT tou EL Bpksk 6 BC546B BC546B 0755 3C711 R707 2R2 CF 8732 a ME 100 EL 100N PE 100V 100R MF L C719 op 12K MF R716 RV700 LI 100N PE 100V 2K7 2208 PSET 8708 WER 100R MF
5. C304 D300 Q300 8301 0304 005408 BC546B 4K7 ME 47U EL 100V 1N4003F C310 38V R 38V C312 ro VUELTO lt 06317 e ose Gu ZENER 500MW 3 220 EL 100 CD 8 100NCD 871 MAINS INPUT 0V 8 0311 IV HF SK300 Tien D302 100U EL 100V pa305 leont lesi 37V C305 1N4003F ZENER 500MW 3 EL oy 190 A 0303 0302 38V N E 1 TX300 4 4K7 MF R312 z L816TX YY 108 FU PSUP300 C300 vis 3N3 MAINS SELECT VOLTAGE BY FITTING FS201 C301 OR FS202 C306 MAINS M800 4 3N3 MAINS _ 100N PE 100v 230V C308 ov LS L MAINS E880 e 10M EL 50V oV HF BLUE301 FS301 7 1U0 EL L ca15 ERGBUB ov SIG 80300 gt 100U EL MAINS 1 7 STAR 10 OV 15 MAINS SWITCH D306 bwsooa bacon 10V 400MVV 7 100P CD EN 1007 N 4 4 ov_DIG OV HF y i CAGECLAMP3 gt C309 0v SIG D307 A1007 einen OR301 10M EL 50V oV PSU 10V 400MW 2 2 gt 441 6307 SK302 eps 100N PE 100V e 220N X2 CLASS GREENg00 SCREEN legos _ 316 gt 1 0 EL 100U EL CAGECLAMP1 NSUP300 Classis Earth
6. 17 Jon 2002 LO o C O n 1 LEDSO1 REVA L885AY L885PB A65 75 Display Board 1 885 1 1 Reference Description Part Number LED901 LEDGREEN3 IMMSLR 30007 907 37MG3F PCB R903 RES MF W4 1 220R 1 122 R904 ES MF W4 1 220R 1H122 10 WAY FFC CONN HORIZ 8K8110 WI S ALPS ENCODER 12 A1507 NOTCH VERT EC16B12204F15 Bill of Materials Document title A65 Plus Amplifier Document number L942RS Issue 1 Revision 0 ECO number 01 020 Date 17 12 01 Created by TGP Page 1 of 6 Excluding parts for A65 Part Qty 155 Description Designators PCB For drawing office use only Will be kitted from mechanical run out sheet C12126 1 FUSE 20mm 1 25A AS FS300 856 2 75 HEATSINK CLAMP CL600 CL601 F022 2 INS COVER PCB FUSEHOLDER FS300 FS301 F062 ji FUSE CLIP WCK 180 01A EL300 F185 2 TX WIRE RESTRAINT Y300 Y301 L836TX 1 ALPHA 7 AMP MULTI VOLTAGE TRANSFORMER TX300 PCB Build items 1B822 2 RES CF W4 5 2R2 R631 R731 1D110 2 RES CF
7. Document number L942RS Issue 1 Revision 0 ECO number 01 020 Date 17 12 01 Created by TGP Page 2 of 6 1H324 2 RES MF W4 1 24K R200 R201 18333 2 RES W4 15 33K R152 R905 18347 9 RES 1 47K R100 R101 R102 R103 R104 R105 R106 R107 R629 1H356 2 RES W4 1 56K R112 R113 1H368 2 RES MF W4 1 68K R211 R212 1H410 30 RES MF W4 1 100K R129 R130 R131 R132 R133 R134 R135 R136 R137 R138 R139 R140 R141 R142 R143 R144 R149 R150 R157 R208 R209 R232 R233 R234 R235 R611 R612 R711 R712 R912 1H447 2 RES MF W4 1 470K R634 R72 1H468 2 RES MF W4 1 680K R110 R11 1T002 1 THERMISTOR SIEMENS B59008 TH100 1 008 1 LINK PLAIN 8mm LK28 1X010A 210 LINK PLAIN 10mm LK101 LK102 LK103 LK104 LK172 LK173 K176 LK177 LK1 LK2 LK4 LK5 LK6 LK8 LK9 LK10 1 11 K12 LK13 LK14 LK15 K16 LK17 LK18 LK19 K20 LK21 LK22 LK23 K24 LK25 LK26 LK27 29 LK30 1K31 LK32 K33 LK34 LK35 LK36 37 LK38 LK39 TK40 K41 LK42 TK43 LK44 K45 LK46 LK47 LK48 K49 LK50 LK51 LK52 53 LK54 LK55 LK56 K57 LK58 LK59 LK60 K61 LK62 LK63 LK64 65 LK66 LK67 LK68 LK69 LK70 LK71 LK72 K73 LK74 LK75 LK76 K77 LK78 LK79 LK80 LK82 LK83 LK84 85 LK86 LK87 LK88 89 LK90 LK91 TK92 93 LK94 1 95 LK96 K97 LK98 LK99 LK105 LK106 L
8. MF 2U2H SMALL RLY G5Z 2A E ___ 22U SILMIC 2 ce21 R612 M900 0603 100K MF 0606 0607 803 1000 PP 805468 805468 10U EL B 030 0625 lt _ Cet 8607 2R2 D R632 R633 10U 100N PE 100V 100R MF io Oe EF TERME 8616 H T 100 PE 100v NS 2K7 MF 2208 PSET 8608 3 100R MF 18 C605 R613 Hair T 1600 25 ZA LL 47R MF 47R MF 0v SIG Bias L R628 0616 C623 e I SUR ME re 2SA970GR 0615 ji CD 4 SAP15P R623 10K MF R626 6K8 MF R624 2 5 10K Dos D604 1N4148 C607 100P PPW iN4003F Q61 Q610 2SC2240G 2SC2240GR 0613 0617 ZTX653 Q609 BC546B __ 0616 0602 1oU EL R603 R604 ZENER 400MW 27V 100R MF 100R MF R609 R610 R617 100R MF 100R MF 680R MF 0600 4V7 400MW OV_HF 100 EL 100V e 0612 Se L Be 100NPE100Vp 38VL 7 1 1000 50V YXF LOW 0V HF OV HF CL600 01601 G2 PAD SAP Q2 PAD SAP 856MC 856 HS600 65601 HS602 HS603 USE exlude A65 FILTER FOR BOM 81801 75 81801 75 81801 75 E81801 75 DRAWING TITLE A65 PLUS AMP R C M Filename L942C5 1 0 SCH Notes A amp R Cambridge Ltd Left Channel Power Amplifier 01 E020 TGP 12 12 01 PRODUCTION RELEASE 1 0 Pembroke Avenue ECO No INITIALS DATE DESCRIPTION
9. L816TX __ 8207 TRANSFORMER peo oo L941AY I ASSEMBLY
10. Document numper L940RS Issue 1 Revision 0 ECO number 01 020 Date 17 12 01 Created by TGP Page 2 of 6 2901 18318 2 RES W4 1 18K R116 R151 1H324 2 RES W4 1 24K R200 R201 18333 2 RES W4 1 33K R152 R905 1H347 9 RES MF W4 1 47K R100 R101 R102 R103 R104 R105 R106 R107 R629 1H356 2 RES MF W4 13 56K R112 R113 1H368 2 RES MF W4 1 68K R211 R212 1H410 30 RES MF W4 1 100K R129 R130 R131 R132 R133 R134 R135 R136 R137 R138 R139 R140 R141 R142 R143 R144 R149 R150 R157 R208 R209 R232 R233 R234 R235 R611 R612 R711 R712 R912 1H447 2 RES MF W4 1 470K R634 R721 1H468 2 RES MF W4 1 680K R110 R111 11002 1 THERMISTOR SIEMENS 859008 TH100 1 008 1 LINK PLAIN 8mm LK28 1X010A 205 LINK PLAIN 10mm LK172 LK173 LK200 239 LK901 LK1 LK2 LK4 LK5 LK6 LK7 8 LK9 LK10 LK11 K12 LK13 TK14 TK15 K16 LK17 LK18 LK19 20 LK21 LK22 LK23 K24 LK25 LK26 LK27 K29 LK30 LK31 LK32 LK34 LK35 LK36 K37 LK38 LK39 TK40 K41 TK42 TK43 TK44 K45 LK46 LK47 LK48 49 LK50 LK51 TK52 53 LK54 LK55 LK56 57 LK58 LK59 TK60 K61 LK62 LK63 LK64 65 LK66 LK67 TK68 K69 1 70 LK71 LK72 K73 LK74 LK75 LK76 K77 LK78 LK79 LK80 81 LK82 LK83 LK84 85 LK86 LK87 LK88 89 LK90 LK91 LK92 LK93 LK94 LK95 LK96 LK97 LK98 LK99 LK105 LK106 LK107 LK108 LK109 LK110 LK111 LK112 LK113 LK114 LK115 LK116 LK117 LK118 LK11 LK120 LK121 LK122 LK123 LK124 LK127 LK128 LK129 LK130 LK131 LK132 LK133 LK134 LK135
11. C312 TN4003F EN Z c317 e ce ZENER 500MW 3 220 EL 50V00NCD 100NCD 871 MAINS INPUT 7 0 PSU 0311 HF D302 E100U EL 100V C318 220 5 37V L C305 1N4003F Z lt lt I100M0 4 gt ZENER 500MW 3 A 0303 Q302 38V R N E L TX300 4 4K7 MF 4 a R312 z L836TX YY 108 FU PSUP300 C300 3N3 MAINS SELECT VOLTAGE BY FITTING FS201 _ C301 OR FS202 C306 MAINS N366 e 3N3 MAINS 506 100N PE 100v 15V 230V TS 00 C308 5_ 99 10M EL 50V ov is L BLUE301 FS301 ERGBUB 5 EL MAINS 386 ni ov SIG SP300 MAINS SWITCH 1 D306 STAR 10 0 LS R 10V 400MW 07 bacon 24 A1007 gt gt lt Li V 4 CAGECLAMP3 2 C309 ov_DIG 0V 0V SIG A10 OR301 10M EL 50V 0V 8 1 4 SK302 L 0307 220N X2 CLASS GREEN300 SCREEN 1000 100V C105 0530 C316 10V 400MW e 1U0 EL 100U EL CAGECLAMP1 NSUP300 Onassis Earth Point FIT ONLY ONE FUSE 5 Use correct screw and washer 300 15V R300 1008 LK100 LK101 LK102 LK103 LK104 LK168 LK170 LK171 LK172 LK173 LK174 LK175 LK176 LK177 oV HF LK126 LINK17 5NP LK1 LK6 LK11 LK16 LK21 LK26 LK31 LK36 LK41 LK46 LK51 LK56 LK61 LK66 LK71 LK76 LK81 LK86 LK9
12. 15v 0216 IL 5V 100N CD gt RV164B y ar Se 2 6A360M 0V 56 1 V T5v 1 sig 809A OV SIG T R219 9K1 M 5 dl DIL16 VPLG AVCONTROL Rvie4c Z163B VOLMOTA161 513 7 R231 C195 2W CABLE HOLDER 1 5 sj 10N CD TK MF 100 1 GPA2134PA C228 10MM LI 100P PPW 4 65 SIG 8239 1K2 MF VOLUME SNAP BOARD R160 1K0 MF TAPOR TAPOL 415v 0164 0165 FIT LINKS FOR 8P PREMUTE 1N4148 1N4148 LK174 0V SIG 1 Lo 2 3l 10MM LI LK173 15v FIT LINK FOR 8P ONLY 2 1 10MM LI P 196 3 CUT LINK IF FITTED 8P ONLY 208 0 PREAMP OUT 4 100 R203 RV166B R206 1 6 7 10K LIN POT 4K7 35 XV y 15 5 D166 167 v gt gt OV SIG 4 y 0 SIG SIG 6 4 C205 C207 E 1N4148 1N4148 457 are 220N PE 220N PE 7 0201 10MM LI LK175 SW162B 54K ME TOK ME 8 UT LINK IF CIM FITTED 8P ONLY 1 em 2 F 207 71618 ZECO T 15V HOOK 10MM LI RV167B 470 EL 35V Tone controls 4K7 5 203 40 48 408 PWRLEFT gt FIT LINK FOR 8P ONLY 10KLIN PO 4560D 8dB cut and boost 7 PREMUTE 0228 100 EL 100N CD 0V SIG ov Sia 4560D FOOKN PREMUTE 6 PREMUTE c209 4N7 PP 0V 56 C211 oV 56 0V SIG 224 R215 R217 100P PP 100N CD SK3 MF RV165B ales 10K LIN POT 75 P
13. LB819CA 1212 FLEXFOIL 10WAY L836TX L836TX L837TX ALPHA 78 TRANSFORMER O L885AY A75 DISPLAY ASSY L942AY A65 PLUS PCB ASSEMBLY 75 Plus General Assembly ITEM 230V 115V 100V SILVER BLACK DESCRIPTION WHEREUSED QTY A LstsPC tt O 19 E092AY FASCIAASSY 41 EB29CP_ 8300 COVERPLATE 1 43 ES AE mS 4 21 5B483028 PIC CHIP L818SW 11 17 C12126 C12256 C12256 FUSE FUSE AND SPARE 2 ee n 1 EO33AY REAR PANEL ASSEMBLY t E802AP DAMPING PAD BER CO CET PER L600 L700 2 PER RLY1 SEE L881AY FOR POSITIONING 75 804 BLACK FELT WASHERS BEHNDKNOBSS 4 68 68077 j 7 p HETSNK 74 24 52 55 X MAINSINSULATOR _ _ UNDERMOTHERPCB _ 1 3 EO62AY DiVALOWAMP amp TUNERCHASSISASSY ___ 2 500 21 S 717222 O 4 SUPPORT SPACER UNDRTX 14 2 4 E855PM j SELECTORKNOB 1 HEAT SINKCLAMP 2 PUSHBUTION ees VOLUMEKNOB 12 _ EO72AY IDIVAEXTENDEDPOWERBUTTON 13 FT 4 67 E879SL CONFIGURATION LABEL 1 15 E889PM BASTRB BALKNOB 79 ooa te 2 16 02 jJ Jj pnRUSEHOLDERCOVER j O __________ ______________________
14. ISSUE 1 4885C1_1 SCH 12 Sep 2000 Sheet 1 of 1 FIRST PROTOTYPE Drawn by ES C B A ISSUE DRAWING NO L885C1 A 5 6 7 8 L CAUTION UME MANS SAFETY EARTH DIRECT ON OF LI REPLACE_WITH SAME FU 6 6 Taser FIT ONE FUSE ONLY 230V
15. R617 1008 MF 1008 MF 680R MF 600 MIT 4V7 400MW HF 171000 EL 100V C612 1 AR 38V L M 6615 37V 100N 100V V ue 1000 50V YXF LOW Z V i CL600 CL601 SP601 Q2 PAD SAP 856MC 856 HS600 HS601 HS602 HS603 81801 75 81801 75 81801 75 E81801 75 DRAWING TITLE A75 PLUS AMP ARCAM amp R Cambridge Ltd Pembroke Avenue Waterbeach Cambridge CB5 9PB Filename 1940 5 1 0 5 Left Channel Power Amplifier 01 6000 12 12 01 PRODUCTION RELEASE 1 0 ECONo INITIALS DATE DESCRIPTION OF CHANGE ISSUE Contact Engineer Travis Pierce Contact Tel 01223 203 200 Printed 11 Dec 2001 Sheet 5 of 7 DRAWING NO L940C5 D907 MOTSUP900 1N4003F 5V 2905 BA6109 0V_DIG VOLM901 C920 c918 T 1M0 25V 100N CD V m OV DIG Z907A 74HC4051 0912 0900 BC556B 10NC A C901 100U EL R900 8 0 ACLT1 gt TO F ov DIG MOTOR DRIVER VOLUME DRIVE 0906 __ 0900 10N CD MOTEgO0 4 1008 MF R902 C914 100R MF 220 EL D908 LK901 ZEN
16. TOP SHEET FOR A65 L942AY 0 E020 TGP 12 12 01 PRODUCTION RELEASE 10 peng ECO No INITIALS DATE DESCRIPTION OF CHANGE ISSUE faterbeac Cambridge 5 9PB Contact Engineer Travis Pierce Contact Tel 01223 203 200 Printed 11 Dec 2001 Sheet 1 of 7 DRAWING NO L942C1 38V L 37V E E E lt gt lt C600 0614 l 0603 100U EL 100V R601 R602 R615 EXON 100N PE 100 T 1000 50V YXF LOW 2 V 100R MF 100R 47 HF V OV_HF D601 Oar ZENER 400MW 27V 0600 SR i Q602 BC556B BC556B R621 22N CD 680R MF bd 0605 SPLS600 556 8629 ote _ SK600B C620 1N4003F 470P CD SPKSKT G C604 Q603 2SA970GR 28A970G ot R625 6K8 EA 100P PPW A 100P PPW 1N4148 SK600C 470K MF ov ts L Q614 x SAP15N Bias L R627 Q612 4 4 2SC2240GR C623 PM SPLD600 100N PE 100 C610 _ _ 1008 100N PE 100VT BIAS 12mV R606 100R MF 22 71 10UEL C602 Q619 Q618 R600 5468 BC546B R611 3 RLY1A e
17. 0610 0611 0612 0710 0711 0712 44546 16 TRANS SS N BC546B 0300 0304 0606 0607 0608 0609 C613 C618 0619 0706 0707 0708 0709 0713 0718 0719 44556 9 5 55 556 0302 0305 0600 0601 0602 0605 0700 0701 0702 4A970GR 6 TRANS LF SS 2SA970GR 0603 0604 0616 0703 0704 0716 4B653 2 2TX653 NPN Transistor 0617 0717 4CSAP15N 2 TRANS POWER 5 15 0614 0714 4CSAP15P 2 TRANS POWER SAP15P 0615 0715 5M7317 1 IC COMPARITOR TA7317P 2101 67122 2 PRES 220R LIN HORIZ RV600 RV700 7D002C 2 INDUCT 2U2 12x20mm L600 L700 8A001 1 IEC MAINS CONN PCB INS PX SK300 8D225 PHONO SKT 4 WAY EMC GOLD SK101 8D301 1 STEREO JACK PCB SK162 8D420G 2 SPEAKER SOCKET GOLD 4MM DUAL PAIR CHUNKY SK600 SK700 8K6316 1 16 WAY DIL PIN HEADER PL161 8M101 1 EARTH LEAD EL 80001 1 CAGE CLAMP 16A 3 WAY 001 236 SK301 80003 1 CAGE CLAMP 16A 1 WAY 003 236 SK302 80004 1 CAGE CLAMP 16A 3 WAY 004 236 SK304 80005 1 CAGE CLAMP 16 2WAY 236 402 000 009 SK303 8R003 2 MOLEX 3W 2 5MM P HOLDER LK100A LK100 85004 2 FUSEHOLDER 20mm FS300 FS301 A1007 SW PUSH MAINS SDDSA32MZU SW300 A1008 1 SW PUSH 2PCO SW163 A207 1 RELAY G5Z 2A E 24V RLY1 E66901 1 MATNS SWITCH SPACER SW300 E81801 4 X ALPHA AMP 75 65 HEATSTNK HS600 HS601 HS602 HS603 E852MC 4 SAP TRANS Q2 PAD 21mm x 32mm SP600 SP601 SP700 5 701 862 4 ALPHA 65 75 HS CLIP HS600 HS601 HS602 HS 603 007 2 COPPER RIVET 48 5 5 300 5 300 1825 2 7 WAY RIBBON 250mm L
18. 3C11004 2 ZENER 10V 400MW D306 D307 3C22704 4 ZENER 27V 400MW D601 D602 D701 D702 3C23905 2 ZENER 39V 500MW D304 D305 3D006 1 LED RED GREEN 3MM L 93WEGW LED100 4A2240GR 7 TRANS SS N 2SC2240GR Q100 Q610 Q611 Q612 Q710 0711 0712 ARCAM PCB 111 of Materials Document title A65 Plus Amplifier PCB Document number L942RS Issue 1 Revision 0 ECO number 01 E020 Date 17 12 01 Created by TGP Page 5 of 6 4A546 16 TRANS LF SS N BC546B 0300 0304 0606 0607 0608 0609 0613 0618 0619 0706 0707 0708 0709 0713 0718 0719 4 556 10 TRANS LE SS 556 0302 0305 0600 0601 0602 0605 0700 0701 0702 0900 4A970GR 6 TRANS SS 2SA970GR 0603 0604 0616 Q703 0704 0716 4B653 2 ZTX653 NPN Transistor 0617 0717 4CSAP15N 2 TRANS POWER NPN SAP15N 0614 0714 4CSAP15P 2 TRANS POWER PNP SAP15P 0615 0715 5 5532 IC AUDIO DUAL NE5532N 2100 58072 IC AUDIO DUAL TLO72 2104 5B2134D 1 IC OPAMP DUAL OPA2134PA 2163 584560 2 IC AUDIO DUAL 4560 2160 7161 5B483028 1 IC CMOS MICRO HT48R30 28 DIP B 0 2900 507805 IC VREG POS 7805 2300 507905 IC VREG NEG 7905 2301 562401 IC CM08 EPROM 24001 2906 57744051 1 IC HCMOS PC74HC4051 2907 5M7317 1 IC COMPARITOR TA7317P 2101 506109 1 MOTOR DRIVER
19. BC556B Q602 BC556 BC556B 277 R621 esoRuF 22N CD e 0605 SPLS600 BC556B R629 x 603 0620 nho 1N4003F MF 470P CD SPKSKT G 0604 0603 2SA970GR 2SA970G por C608 6 8 C604 100P PPW TM MP 1N4148 SK600C 470K MF ov 151 614 SAP15N HASS Bias L R627 SPKSKT_G T 2SC2240GR C623 FORME SPLD600 100N PE 100V R605 e 8 TOON PE 1067 10K MF 5 S TO 12m R606 100 0617 NES 0618 10U EL RLY1A R600 a 5 865460 805468 8611 gt v 4 1 TKO MF TOOK MF 1 2U2H LAC SMALL RLY G5Z 2A E Le R630 Ceo 5 600 603 4R7 W2 R631 100P PPWF 100K MF TT tou EL SPLE600 4707 CBpkskT BC546B C625 R607 282 CF 6 4 O 12K MF R633 10UELCT 100N PE 100V MOORE EE u TEEME BIG RV600 E 100N PE 100v av ela 2K7 MF 2208 PSET 8608 E _ 100R MF Ye ute F 8 C605 SC624 R613 R614 100 SILMIC 2 1000 25V ZA EL Ly 47R MF 47R M Bias L R628 0616 C622 ov_SIG cmd 1 PD6 Q615 SAP15P 1 100060 R623 10K MF R626 Belg 6 8 MF 10K MF 0V HF R624 10K MF DEUS R619 D604 1N4148 Q608 10K MF 1N4003F BC546B Q610 2SC2240GR Q613 Q617 BC546B ZTX653 Q609 BC546B 0616 D602 10UEL R603 R604 ZENER 400MW 27V 1008 MF 100R MF R609 R610
20. LI 47K MF OV HF H Ri20 PROTOP RD E AUXOR 47K MF TRE 2SC2240GR LK104 TKO ME Gr ad 1000 NP R105 6 Prot 4 ub R132 10136 e 100K MF 470P PPW Therm R107 D132 8118 V 56 TAPOL R157 47KMF VCROL 100K MF c153 I 1N4148 4 CDL TH100 150 skro f 2157 0104 PTH90DEG L 6 4700 PPW ov_SIG 1U0 EL CD 1N4148 1 4148 15 TAPOR Becr 2 0V_SIG 3 pie PHONO4G 5 R151 33K MF d K TAPOR 15V 0105 0107 ov ur 470P PPW 37V 1N4148 1N4148 15v R121 TUNOL Z102 15M117 AUXOL SN E VCROL TENER C137 8154 g 470P PPW DVDOL 478 1N4148 1 4148 15 0V 56 122 TUNOR C12 gt ov SIG 48v 0120 4 SIE op PP 15V 0109 D113 MUX1 TAPEOL x d 0138 MUX2 470P PPW MUX3 1N4148 1 4148 15 TAPECONTROL 16 Es ov SIG 15vDG408DJ 15V C151 m dnd 7108 JE gt SK103B po pia AUXOR 3 14 100 SILMIC 2 Ead C 4 0139 VCROR 100 dn 470P PPW TUNOR 8 4 13 1N4148 1 4148 15v CDOR 185 5V ov_SIG n DVDOR 12 AME 5 12 11 0V SIG PHONO4G R SIG 6 11 VCRR 1 121 0152 15V 0111 0115 ai ov Sia 5V 4 10 7 10 SELOPR gt ro s 470P PPW MUX1 8 9 100 SILMIC 2 1N4148 1 4148 T5v MUX2 16 MUX3 15 100K MF ov S 8125 DVDOL 14 MAPECONTROL AV DVD KOMP 0v V 15V 0120 0124 ov SIG 15vDG408DJ
21. LK136 LK137 LK138 LK139 LK140 LK141 LK142 LK143 LK145 LK148 ARCAM PCB 111 of Materials Document title 75 Plus Amplifier PCB Document numper L940RS Issue 1 Revision 0 ECO number 01 E020 Date 17 12 01 Created by TGP Page 3 of 6 1X015A 26 1X017A 7 1X020A 18 19271 T 2A010 2 2A047 2 2A147 5 2A210 3 2A310 24322 1 25410 30 2D110N 6 2D110W 10 LINK PLAIN 15mm LINK PLAIN 17 5mm LINK PLAIN 20mm MPER 2 W LEAD APL5 ERD 10P 63V 20 RA R R D 47P 63V 20 RA D 470P 63V 20 RA 200 C G3 LI LI E C Q Q0 CI RD 1M0 63V 20 RA RD 10M 63V 20 RA RD 22N 63V 20 80 RA RD 100M 63V 20 80 LI 100 63V 5 W 100P 63 5 RA LK149 LK150 LK151 LK152 LK153 LK154 LK155 LK156 LK157 LK158 LK159 LK160 LK161 LK162 LK163 LK164 LK165 LK166 LK167 LK178 LK179 LK180 LK181 LK182 LK183 LK185 LK186 LK187 LK188 LK189 LK191 LK192 LK193 LK194 LK195 LK196 LK197 LK198 LK199 K202 LK201 K203 LK204 LK205 LK206 LK207 LK208 LK209 LK210 LK211 LK252 LK253 LK255 LK258 LK277 LK278 LK279 LK280 LK281 LK300 K301 LK303 LK304 K212 LK213 LK214 LK215 LK216 L
22. M 4N7 PP 1N3 PP 15v 0101 0103 Lc125 220 EL SK100A 1N4148 1N4148 15v 37V bd bd SIG 8117 AUXOL ACSENSE PROTECTION gt 9 E LK103 3 C117 D128 gt T 8145 ov SIG 10MM LINK 1N4003F 470860 OK MF gt 71008 470P PPW 1 15V 0100 5 5532 C132 PHONO4G 7 Hn d 6 _ IV 0V_SIG PHINR 1N4148 14148 95 47P CD AU EL 15 lt D130 RLY G5Z 2A E 00V 8150 5 is 100K MF 1N4003 680K 470R FU T amp T cis 8115 1 x 8 2 R149 x 8 2 1 C149 1M0 1W 4N7 PP 1N3 PP 100UE R156 C126 R104 OV HF T 220 EL 1 5 148 LI V HPSWI 1U0 EL 8102 bd bd gt HUN 47KMF oO HF HPSW2 gt 120 AUXOR R103 2 ot LK104 PROT gt TA7317P 41 8132 10MM LINK C136 SK101A R105 Prot 100KMF PPW 47K 5 2 Therm 3 ov SiG 1 8107 0132 VC80L MET 47K MF CDL mM 4 100K MF c153 0 5 6 TAPOR NS 1 4148 15 C134 PTH90DEG 470P PPW PHONO4G 2 e 1N4148 1N4148 15v ov 56 TUO EL PHONO4G 5 VCROR i CDR 1K0 MF 8151 33K MF 15V 0105 D107 C135 18K MF V OV HF 1N4148 1N4148 15v 2102 ks 3150117 D119 37V AUXOL 4 1 VCROL 5 Z104A TUNOL 6 8 3 1N4148 75 12
23. OF CHANGE ISSUE Waterbeach Cambridge CB5 9PB Contact Engineer Travis Pierce Contact Tel 01223 203 200 Printed 11 Dec 2001 Sheet 5 of 7 DRAWING NO L942C5 MOTSUP900 C920 C918 1M0 25V 100N CD Z905 V BA6109 0V 0I6 OV DIG 1N4003F VOLM901 1V271 SK900 FFC10V 0912 oN VOLM900 2907 R900 74HC4051 TRO FU ov D906 5V _ 900 10N CD MOTI DIG MOTOR DRIVER VOLUME DRIVE pem 220R MF 0 DIG 1 C915 100U EL L 0914 7172200 EL D908 ZENER 5V1 400MW 29078 74HC4051 REMO900 1 22 0V 115903 3WAY CABLE HOLDER X900 V OV DIG DIG CST4 00 SW900A 2PCO NON LAT 404848 SW900B D911 2PCO_NON_LAT 0V_DIG RX900 PIC 26043TM2 1N4148 C917 L856CA cp REMOTE SENSOR SNAP OFF BOARD SP1 IR RX SUPPORT PAD USE exlude A65 FILTER FOR BOM DRAWING TITLE A65 PLUS RC Filename 1942 7 1 0 5 Notes WARNING SAFETY CRITICAL COMPONENT AE eee Lia uC Volume Drive amp Remote ContrloLEO20 21201 Pembroke Avenue REPLACE WITH IDENTICAL PART Waterbeac
24. SIM module In order to allow this to operate LK172 amp LK173 must be removed This will allow 12V trigger signals to operate the P75 Headphones The Speaker outputs SK600 700 are connected to the headphone socket SK162 via an 8 way ribbon LK170 171 The output is attenuated by a resistor network R161 162 236 237 The Relay drive is fed through the headphone socket s switch HPSW1 2 so that when headphones are inserted the speakers are disconnected Switch SW163 allows the separate switching of the second speaker terminals on SK600 700 65 75 amp P75 Service Guide Fault diagnostics Fault Action No power Check mains fuse Check transformer connections Check power supply rails Stuck in protection Check power supply rails Check protection circuit voltages Check for dry joints on o p devices Intermittent audio on one channel Check for dry joints around o p devices Fails to respond to commands Check supply to remote circuit Check IC Z900 Check remote flex foil cable Check for dry joints on selector pcb Volume control rubs on front panel Pull knob out from fascia Audio crackles on o p Check for component break down using hot air gun amp freezer spray Check transformer connections Power supply test points Position Voltage LK125 37 volts DC LK126 37 volts DC LK271 or black speaker term
25. W2 100R 5 R236 R237 1D847 2 RES CF W2 4R7 5 R630 R730 1F133 2 RES 3308 5 R161 R162 1F210 1 RES 1V 1 5 R153 12227 2 RES 2K7 5 R146 R147 1G010 2 RES FU 3 10R 5 NFR25 R311 R312 1G147 RES MF W3 4708 5 NFR25 R148 1G810 RES MF W3 1580 5 NFR25 R900 1H010 1 RES W4 1 10R R904 18047 10 RES MF W4 1 478 R154 R155 R230 R231 R613 R614 R615 R713 R714 R715 1H110 23 RES MF W4 1 100R R300 R601 R602 R603 R604 R605 R606 R607 R608 R609 R610 R701 R702 R703 R704 R705 R706 R707 R708 R709 R710 R902 R903 1H122 1 RES MF W4 1 220R R915 1H143 4 RES MF W4 1 430R R627 R628 R727 R728 1H147 2 RES MF W4 1 470R R108 R109 1H168 3 RES MF W4 1 680R R617 R621 R717 1H210 16 RES W4 1 1 0 R117 R118 R119 R120 R121 R122 R123 R124 R125 R126 R127 R128 R160 R240 R600 R700 1H212 2 RES W4 1 1K2 R238 R239 18215 1 RES 4 1 1K5 R156 1H227 2 RES MF W4 1 2K7 R616 R716 1H233 4 RES 4 1 3K3 R214 R215 R216 R217 1H247 9 RES MF W4 1 4 7 R202 R203 R204 R205 R206 R207 R301 R302 R914 1H268 4 RES W4 1 6K8 R625 R626 R725 R726 1H282 2 RES MF 1 8K2 R114 R115 1H310 15 RES MF W4 1 10K R145 R210 R213 R618 R619 R620 R622 R623 R624 R718 R719 R720 R723 R724 R913 1H312 5 RES MF 4 1 12K R632 R633 R732 R733 R901 1H318 2 RES 4 1 18K R116 R151 PCB 111 of Materials Document title A65 Plus Amplifier PCB
26. op amp gain stage buffering the j fet input multiplexers and Tape Monitor and AV switches The selected input is AC coupled to the op amp the output is DC to the Pre out via j fet pre mute switch This switch is controlled by the uC in such a way that when ever the output relay changes state signal is removed from the power amplifier A65 75 The MM phono stage by passable A75 only SW100 is opamp based The circuit is AC coupled to give RIAA IEC low frequency response The cartridge is loaded by R100 101 C119 120 1kHz gain is 56dB and RIAA eq set by R110 112 111 113 C127 129 128 130 Each line input has static protection afforded by the back to back diodes e g D101 103 and RF filtering is set by R118 C134 etc The selected input is buffered for Tape output by Z104 set as a follower The output resistor is inside the feedback loop so to keep the output impedance low and short protection is catered for C121 122 maintain stability into capacitive loads From the tape monitor switch Z105 onwards the signal is AC coupled C151 152 From there the signal is fed to the tone controls These consist of two stages Balance and buffer 7160 and Bass Treble Z161 The output of this stage is again AC coupled Switch SW162 selects whether the tone adjusted signal or a direct signal reaches the gain section In the A75 Z164 can be used to bypass the volume control when AV input is selected This fixes the gain to allow an externa
27. ov Is R L IS I C705 8713 R714 _ 1000 SILMI C724 47R MF 47R MF 1000 25V ZA BL 0v SIG Bias R R728 Q716 C722 7 2SA970GR EDS CD Q715 SAP15P R723 10 726 6K8 724 4 5 10K 0706 701 100P PPW a pim Q710 0711 2SC2240GR 0717 2SC2240GR ZTX653 _l c716 D702 10U EL R703 R704 ZENER 400MW 27V 100R MF 100R MF R709 R710 100R MF 100R MF D700 4V7 400MW A L 0715 100N 1007 338VR SRM T 100N PE 100V V wur 1000 50V YXF LOW Z Y p SP701 E E GES G2 PAD SAP Q2 PAD SAP USE exlude A65 FILTER FOR BOM MIT A65 PLUS AMP R C M Filename 1942 6 1 0 5CH Notes A amp R Cambridge Ltd Right Channel Power Amplifier 01 E020 TGP 12 12 01 PRODUCTION RELEASE 1 0 Pembroke Avenue ECO INITIALS DATE DESCRIPTION OF CHANGE ISSUE Waterbeach Cambridge CB5 9PB Contact Engineer Travis Pierce Contact Tel 01223 203 200 Printed 11 Dec 2001 Sheet 6 of 7 DRAWING NO L942C6 BASS
28. 04 LINK20NP LK265 LINK10NP LINK10NP LINK10NP LINK10NP LINK10NP LINKIONP LINK1ONP LINK10NP LINK1ONP LINK1ONP LINK1ONP LINK10NP LINK1ONP LINKIONP LINKIONP LINK1ONP LINK1ONP LINK1ONP LINK1ONP LINK1ONP LINK10NP LINK10NP LINK10NP LINK15NP LK212 LK213 LK214 LK215 LK216 LK217 LK218 LK219 LK230 LK231 LK232 LK233 LK234 LK235 LK236 LK237 LK238 LK240 LK241 LK242 LK243 LK244 LK245 LK256 LK257 I I LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK17 5NP LINK15NP LK220 LK221 LK222 LK223 LK224 LK225 LK226 LK227 LK228 LK229 LK246 LK247 LK248 LK249 LK250 LK251 LK254 I I LINK20NP LINK20NP LINK20NP LINK20NP LINK20NP LINK20NP LINK20NP LINK20NP LINK20NP LINK20NP LINK20NP LINK20NP LINK20NP LINK20NP LINK20NP LINK20NP LINK20NP LK267 LK270 PD311 PD312 EL300 LINK17 5NP LINK17 5NP PD301 PD302 PD304 PD305 PD303 TARGET PD306 PD307 PD308 PD309 PD310 Y300 Y301 Spare Fuse Clip LK268 LK271 TOOLING TOOLING TOOLING TOOLING TOOLING TOOLING TOOLING TOOLING TOOLING TOOLING TX WIRE CLIP TX WIRE CLIP m LINK17 5NP LINK15NP FUSE CLIP LK269 LK272 C303 LINK15NP LINK17 5NP 1NO CD ov DiG PCB1 ni EUM USE EXCLUDE TO RUN OUT SHEET FOR 75 PHOTO_STRIP UPDATE_BOX L940PB 1 USE EXCLUDE 65 CREATE RUN OUT SHEET FOR 65 WARN
29. 1 5 8154 DVDOL 12 2 _ AME SK103A ji E 11 15V 0108 100 ME TLO72 TUNER M C137 Y um 9 470P PPW ET 1 122 14148 1N4148 15v 2 0V_SIG 100P PP 0V_SIG MUX1 1 o TAPEOL 8122 TUNOR 16 HOON CD PHONO4 TUNR AN 415v 0109 D113 14 ov SIG T 1 0138 1 108 2105 4700 PPW E 174148 14148 15 ov SIG 15vDG408DJ i 15V D118 2 7103 15 SELOPL gt gt AUXOR 4 N4148 15 3 100U SILMIC 2 VCROR 5 71026 TUNOR 6 8 5 4 100K MF VCRL MF 6668 7 4 R155 901938 asyptt0 0114 C139 DVDOR 12 R138 61 47RWF 5 11 100 0V_SIG TA 1 OP PPW 15V TLo72 OV SG 6 1N4148 1 4148 15 ci C152 100P PP PHONO4G ES T 2 C109 ESEIGERED MUX1 1 00109 8 ILMIC 2 MUX2 16 100K MF 15v 0111 115 Cid MUX3 15 DG413DJ 1 470 PPW T 1N4148 1 4148 457 3 100N CD SIG 0V SIG 15vDG408DJ 15v R125 DVDOL TAPEOR AV DVD CV 7 15v 0120 0124 0141 g 4 TAPECONTROL 14148 1N4148 15v ov_SIG 4 4 R126 DVDOR MF DVDR PHONO4G 15V 0121 0125 0142 4700 PPW 1N4148 1 4148 15 8127 TAPEOL TAPL 1K0 MF 15V 15 SK102B 0 6 as 75 D122 0126 C143 cs e 470P PPW 100N CD TAPEIN 1N4148 1N4148 15 100N CD SI wrson wv n rus USE exlude A65
30. 1 LK96 LK106 LK111 LK116 LK121 LK131 LK136 LK141 LK151 LK156 LK161 LK166 LK181 LK186 LK191 LK196 LINK10NP LINK10NP LINK1ONP LINK1ONP LINK10NP LINK1ONP LINK1ONP LINK1ONP LINK10NP LINK1ONP LINK1ONP LINK10NP LINKIONP LINKIONP LINK1ONP LINK10NP LINKIONP LINK1ONP LINK10NP LINK10NP LINK10NP LINK1ONP LINK10NP LINK10NP LINK10NP LINK1ONP LINK10NP LINK10NP LINK10NP LINK1ONP LINK10NP LINK10NP LINK10NP LINK1ONP LINK10NP LK2 LK7 LK12 LK17 LK22 LK27 LK32 LK37 LK42 LK47 LK52 LK57 LK62 LK67 LK72 LK77 LK82 LK87 LK92 LK97 LK107 LK112 LK117 LK122 LK127 LK132 LK137 LK142 LK152 LK157 LK162 LK167 LK182 LK187 LK192 LK197 LINK10NP LINK10NP LINK10NP LINK10NP LINK10NP LINK1ONP LINK10NP LINK10NP LINK10NP LINK1ONP LINK10NP LINK10NP LINK10NP LINK10NP LINK10NP LINK10NP LINK1ONP LINK15NP LINK10NP LINK10NP LINK10NP LINK10NP LINK10NP LINK10NP LINK10NP LINK1ONP LINK10NP LINK10NP LINK10NP LINK1ONP LINK10NP LINK10NP LINK10NP LINK1ONP LINK1ONP LINK10NP LK3 LK8 LK13 LK18 LK23 LK28 LK33 LK38 LK43 LK48 LK53 LK58 LK63 LK68 LK73 LK78 LK83 LK88 LK93 LK98 LK108 LK113 LK118 LK123 LK128 LK133 LK138 LK143 LK148 LK153 LK158 LK163 LK178 LK183 LK188 LK193 LK198 LINK10NP LINK1ONP LINK1ONP LINK10NP LINK10NP LKO8NP LINK1ONP LINK1ONP LINK10NP LINKIONP LINK1ONP LINK10NP LINKIONP LINK1ONP LINK1ONP LINK10NP LINKIONP LINK1ONP LINK1ONP LINK10NP LINK10NP LINK1ONP LINK1ONP LINK10NP LINKIONP LINK1ONP LINK1ONP LINK1ONP LINKIONP LINK1ONP LINK10NP LINK10NP LINK10NP LINK10NP LINK1ONP LINK1ONP LINK10NP LK4 LK9 LK14 LK19 LK24 LK29 L
31. 100k s hoes TT wu EL SPLE700 4700 G 100P PPW 07257 on R707 2 2 733 100 100 100V 100R MF c719 Sp 2K MF 4 100 PE 100V 0V SIG 83708 OV_LS_R E Lo qe 100R MF ov 8 7 R713 R714 100U SILMIC 554 1000 25V ZA 478 47R M PD6 Bias R PAD300 4 1 C722 e 2SA970GR 1 0 CD R723 10K MF R726 6K8 MF D706 1N4148 Q708 OOP PPW BC546B 1N4003F 0710 Fe 2SC2240GR 865466 250224008 ZTX653 D702 R703 R704 ZENER 400MW 27V 100R MF 100R MF R710 R717 100R MF 100R MF 680R MF OV_HF 7171000 EL 100V bd bd ps bd ae C715 37V 300N PE 100 100N PE 100V 1000 50V YXF LOW Z oue SP701 USE EXCLUDE NF TO CREATE RUN OUT SHEET FOR A75 USE EXCLUDE A65 TO CREATE RUN OUT SHEET FOR A65 DRAWING TITLE A75 PLUS AMP R C Filename 1940 6 1 0 5 Notes A amp R Cambridge Ltd Right Channel Power Amplifier 01_E020 12 12 01 PRODUCTION RELEASE 1 0 Pembroke Avenue ECONo INITIALS DATE DESCRIPTION OF CHANGE ISSUE Waterbeach Cambridge CB5 9PB Contact Engineer Travis Pierce 01223 203 200 Printed 11 Dec 2001 Sheet 6 of 7
32. 111 of Materials Document title 75 Plus Amplifier PCB Document numper L940RS Issue 1 Revision 0 ECO number 01 020 Date 17 12 01 Created by TGP Page 6 of 6 HS 603 007 2 COPPER RIVET 48 5 5 300 5 300 1809 1 JUMPER 8 WAY LEAD LK168 L825CA 1 7 WAY RIBBON 250mm LK170 L856CA 2 JUMPER 3 WAY x 175mm LK100 LK900 L940PB 1 1 X PRINTED CIRCUIT BOARD PCB1 XXXXXXXX Obsolete absent redundant or incorrect issue in PDM E81801 4 X ALPHA 75 65 HEATSTNK HS600 HS601 HS602 HS603 L940PB 1 1 X PRINTED CIRCUIT BOARD PCB1 Bill of Materials Document title P75 Plus Amplifier Document number L941RS Issue 1 Revision 0 ECO number 01 E020 Date 17 12 01 Created by TGP Page 1 of 3 Part Oty Iss Description Designators PCB Ran sh items For drawing office use only Will be kitted from mechanical run out sheet C12126 1 FUSE 20mm 1 25A AS FS300 E856MC 2 A75 HEATSINK CLAMP CL600 CL601 F022 2 INS COVER PCB FUSEHOLDER FS300 FS301 F062 1 FUSE CLIP WCK 180 01A EL300 F185 2 IX WIRE RESTRAINT Y300 Y301 L816TX 1 ALPHA 8 AMP MULTI VOLTAGE TRANSFORMER TX300 PCB Build items 1B822 2 RES 5 282 R631 R731
33. 14 C715 C719 C723 2N510 2 ELST 1U0 50V 20 RA C148 C150 2N610 8 ELST 10U 50V C616 C617 C618 C625 C716 CRIT C718 C725 2N647B 2 ELST 47u 100V C304 C305 2N710 1 ELST 100U 25V C149 2N710B 6 ELST 100U 100V C310 C311 C600 C601 C700 C701 2N722B 2 ELST 220u 50V C312 C313 2N910 2 LST 10m 50V RA 32mm C308 C309 2P622A82 2 ELEC 22U 16V SILMIC 2 RFS C602 C702 2 710 52 2 ELEC 1000 16V SILMIC 2 RFS C605 C705 2 7102 2 ELST 1000 25V ZA RUBYCON C624 C724 2V710 1 151 NON POLAR 100UF 16V 147 22710D 3 EL 100UF 50V LOW Z XXL C626 C706 C709 4148 8 SSDIODE 1N4148 75V D164 D165 D166 D167 D605 D606 D705 D706 Bill of Materials Document title P75 Plus Amplifier Document number L941RS Issue 1 Revision 0 ECO number 01 E020 Date 17 12 01 Created by TGP Page 3 of 3 3B4003 11 RECTIFIER 1N4003E 1A 200V D128 D129 D130 D300 D301 D302 D303 D603 D604 D703 D704 3BGBU8D 1 BRIDGE RECTIFIER 8A 200V BR300 3C04704 2 ZENER 4V7 400MW D600 D700 3C05604 2 ZENER 5V6 400MW D131 D134 3C22704 4 ZENER 27V 400MW D601 D602 D701 D702 3C23905 2 ZENER 39V 500MW D304 D305 3D006 1 LED RED GREEN 3MM L 93WEGW ED100 4A2240GR 7 TRANS LF SS N 2SC2240GR 0100
34. 1D110 2 RES CF W2 100R 5 R236 R237 1D847 2 RES CF W2 4R7 5 R630 R730 12133 2 RES 3308 5 2161 R162 12210 1 RES 1V 1 0 5 R153 195227 2 RES CF 1V 2K7 5 R146 R147 1G010 2 RES FU 3 10R 5 NFR25 R311 R312 1G147 1 RES MF W3 4708 5 NFR25 R148 18047 6 RES MF W4 1 478 R613 R614 R615 R713 R714 8715 18110 21 RES MF W4 1 100R R300 R601 R602 R603 R604 R605 R606 R607 R608 R609 R610 R701 R702 R703 R704 R705 R706 R707 R708 R709 R710 1H143 4 RES MF W4 1 430R R627 R628 R727 R728 1H168 3 RES MF W4 1 680R R617 R621 R717 1H210 2 RES MF 1 1 0 R600 R700 1H215 1 RES 4 1 1K5 R156 18227 2 RES W4 1 2K7 R616 R716 1H247 2 RES MF W4 1 4K7 R301 R302 1H268 4 RES MF W4 1 6K8 R625 R626 R725 R726 1H310 12 RES MF W4 1 10K R145 R618 R619 R620 R622 R623 R624 R718 R719 R720 R723 R724 1H312 4 RES MF W4 1 12K R632 R633 R732 R733 1H318 1 RES MF W4 1 18K R151 1H333 1 RES MF W4 1 33K R152 1H347 8 RES MF W4 1 47K R102 R103 R104 R105 R106 R107 R158 R629 H410 9 RES MF W4 1 100K R149 R150 R157 R208 R209 R611 R612 R711 R712 1H447 2 RES MF W4 1 470K R634 R721 11002 1 THERMISTOR SIEMENS 859008 TH100 1 010 83 LINK PLAIN 10mm K172 LK173 LK174 LK175 LK12 LK13 K14 LK22 LK23 LK24 LK45 LK49 LK56 LK127 LK128 LK129 LK136 LK137 LK138 LK139 LK140 LK141 LK142 LK143 LK145 LK148 LK149 LK150 Bill of Materials Document title P75 Plus Amplifi
35. 1ONP LINK1ONP LINK10NP LKO8NP 1 LINK1ONP LINK10NP LINKIONP LINK1ONP LINK1ONP LINKIONP LINK1ONP LINK1ONP LINK10NP LINK1ONP LINK1ONP LINK1ONP LINK10NP LINK10NP LINK1ONP LINK1ONP LINK10NP LINKIONP LINK1ONP LINK1ONP LINK1ONP LINKIONP LINK1ONP LINK1ONP LINK10NP LINK10NP LINK10NP LINK1ONP LINK1ONP LINK10NP LK4 LK9 LK14 LK19 LK24 LK29 LK34 LK39 LK44 LK49 LK54 LK59 LK64 LK69 LK74 LK79 LK84 LK89 LK94 LK99 LK109 LK114 LK119 LK124 LK129 LK134 LK139 LK149 LK154 LK159 LK164 LK179 LK189 LK194 LK199 LINK10NP LINK10NP LINK10NP LINK1ONP LINK1ONP LINK1ONP LINK1ONP LINK1ONP LINK10NP LINK1ONP LINK1ONP LINK1ONP LINK10NP LINK1ONP LINK1ONP LINK10NP LINK1ONP LINK1ONP LINK10NP LINK10NP LINK10NP LINK1ONP LINK10NP LINK10NP LINK1ONP LINK1ONP LINK10NP LINK10NP LINK10NP LINK10NP LINK10NP LINK10NP LINK10NP LINK10NP LINK10NP LK5 LK10 LK15 LK20 LK25 LK30 LK35 LK40 LK45 LK50 LK55 LK60 LK65 LK70 LK75 LK80 LK85 LK90 LK95 LK105 LK110 LK115 LK120 LK130 LK135 LK140 LK145 LK150 LK155 LK160 LK165 LK180 LK185 LK190 LK195 LK258 LINK10NP LINK1ONP LINK10NP LINK10NP LINK10NP LINKIONP LINK1ONP LINK10NP LINK10NP LINK1ONP LINK1ONP LINK10NP LINKIONP LINK1ONP LINK1ONP LINKIONP LINK1ONP LINK1ONP LINK10NP LINK10NP LINK1ONP LINK10NP LINK10NP LINK10NP LINK10NP LINK1ONP LINK10NP LINK10NP LINK1ONP LINK1ONP LINK10NP LINK10NP LINK10NP LINK10NP LINK1ONP LINK10NP LK125 LK201 LK202 LK203 LK204 LK205 LK206 LK207 LK208 LK209 LK210 LK211 LK277 LK278 LK279 LK280 LK281 LK252 LK253 LK255 LK300 LK301 LK303 103
36. 241 LK242 LK243 LK244 LK245 LK256 LK257 I I I I LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LINK15NP LK220 LK221 LK222 LK223 LK224 LK225 LK226 LK227 LK228 LK229 LK246 LK247 LK248 LK249 LK250 LK251 LK254 I I LINK20NP LINK20NP LINK20NP LINK20NP LINK20NP LINK20NP LINK20NP LINK20NP LINK20NP LINK20NP LINK20NP LINK20NP LINK20NP LINK20NP LINK20NP LINK20NP LINK20NP LK267 LK270 PD311 PD312 EL300 LINK17 5NP LINK17 5NP PD301 PD302 PD304 PD305 303 TARGET TARGET PD306 PD307 PD308 PD309 PD310 Y300 Y301 Spare Fuse Clip LK268 LK271 TOOLING TOOLING TOOLING TOOLING TOOLING TOOLING TOOLING TOOLING TOOLING TOOLING TX WIRE CLIP TX WIRE CLIP LINK17 5NP LINK15NP FUSE CLIP LK269 LK272 C303 LINK15NP LINK17 5NP 1NO CD ov DiG E DD302 j L940PB A 1_207 DD_ATH USE exlude A65 FILTER FOR REPLACE WITH IDENTICAL PART A65 PLUS AMP RC Filename 1942 2 1 0 SCH Notes A amp R Cambridge Ltd POWER SUPPLY 01 020 TGP 12 12 01 PRODUCTION RELEASE 1 0 Pembroke Avenue ECO INITIALS DATE DESCRIPTION OF CHANGE ISSUE Waterbeach Cambridge CB5 9PB Contact Engineer Travis Pierce Contact Tel 01223 203 200 Printed 11 Dec 2001 Sheet 2 of 7 DRAWING NO L942C2
37. 281 LK300 LK301 K303 LK304 K212 LK213 1 214 LK215 LK216 LK217 LK218 LK219 LK230 LK231 LK232 LK233 LK234 LK235 LK236 LK237 LK238 LK240 LK241 LK242 LK243 LK244 LK245 LK256 K257 LK265 LK271 K126 LK267 LK268 LK269 LK270 LK272 125 LK220 LK221 LK222 LK223 LK224 225 LK226 LK227 LK228 LK229 LK246 LK247 LK248 LK249 250 LK251 LK254 VOLMOT900 CI96 C 197 C123 C124 C117 C620 C621 C720 C21 C303 C622 C722 C153 C195 C900 C912 C913 C609 C101 C102 C107 C108 C109 C110 C112 C113 C114 C115 C116 C118 C213 C216 C217 C218 C219 C220 C221 C222 C223 C224 C317 C318 C918 C919 C119 C120 C121 C122 C210 C211 C227 C228 C603 C604 C607 C608 C703 C704 C707 C708 3 9 C319 C320 C916 C917 8 9 Bill of Materials Document title 65 Plus Amplifier Document number L942RS Issue 1 Revision 0 ECO number 01 020 Date 17 12 01 Created by TGP Page 4 of 6 2D147W 12 PPRO W 470P 63V 5 RA C133 6134 CL36 C137 C138 C139 C140 C141 C142 C143 C144 2D213N 2 PPRO 1N3 63V 5 C129 C130 20247 4 PPRO 4 7 63 5 127 128 208 209 2D422 1 220NF CLASS 2 275VRMS C51 2K233 3 SUPPR CAP 3
38. 506109 2905 5S408DJ 2 IC 8 TO 1 DG408DJ DIL 2102 2103 5S413DJ 2 IC QUAD SPST CMOS SW DG413DJ DIL 2105 7171 6A310E 3 POT 10KB 2LIN RV165 RV166 RV167 6A360M 1 POT 20KA DUAL 18MM MOTORISED RV164 6F122 2 PRES 220R LIN HORIZ RV600 RV700 7D002C 2 INDUCT 202 12x20mm L600 L700 7W005 1 CER RESON 4 00MHz X900 8A001 1 IEC MAINS CONN PCB INS PX SK300 8D225 4 PHONO SKT 4 WAY EMC GOLD SK100 SK101 SK102 SK103 8D301 1 STEREO JACK PCB SK162 8D420G 2 SPEAKER SOCKET GOLD 4MM DUAL PAIR CHUNKY SK600 SK700 8K8010 10 WAY FFC CONN VERT SK900 8M101 EARTH LEAD EL 80001 CAGE CLAMP 16 3 WAY 001 236 SK301 80003 CAGE CLAMP 16 1 WAY 003 236 SK302 80004 CAGE CLAMP 16 3 WAY 004 236 SK304 80005 1 CAGE CLAMP 16A 2WAY 236 402 000 009 SK303 8R002 2 MOLEX 2W 2 5MM P HOLDER VOLMOT900 VOLMOTA161 8R003 4 MOLEX 3W 2 5MM P HOLDER LK100 LK100A LK900 LK903 85004 2 FUSEHOLDER 20mm PCB FS300 FS301 A1007 J SW PUSH MAINS SDDSA32MZU SW300 A1008 2 SW PUSH 2PCO SW162 SW163 A1009 SW PUSH 2PCO NON LATCHING SW900 207 RELAY G5Z 2A E 24V RLY1 B2107 REMOTE RX PIC 26043TM2 38KHZ RX900 E66901 1 MAINS SWITCH SPACER SW300 E81801 4 X ALPHA 75 65 HEATSINK HS600 HS601 HS602 HS603 E822AP 1 IR RX SUPPORT PAD SP1 E852MC 4 SAP TRANS Q2 PAD 21mm x 32mm SP600 SP601 SP700 SP701 E862MC 4 ALPHA AMP 65 75 HS CLIP HS600 HS601 HS602 HS603 HP007 2 RIVET TCP D48 BS SK300 SK300 PCB 111 of Materials Document title A65 Plus Amplifi
39. 5v FIT LINK FOR 8P ONLY 21 15 1 28 10MM LI 9 54008 C196 14 R208 PREAMP OUT 8 st HOOK 9 BASS N 20 Ele 4 Le 5 VL 12 0166 D167 v SIG 6 11 C205 C207 54 53 1 4148 1 414815 646 220 220 7 mI 0201 10MM LI SW162B 24K TOK MF 4 4 581319 UT IF 8P ONLY F R207 ean asy RV167B 47U EL 35V Tone controls Mc NE 5h C203 BN DG413DJ PWRLEFT gt FIT LINK FOR 8P ONLY 10KLIN PO 4560D 8dB cut and boost 7 PREMUTE 0228 OU EL 100N CD 0V SIG 0V SIG 45600 100K PREMUTESS lt PREMUTE c209 Y 4N7 PP 0V SIG C211 SIG 0v SIG R215 8217 100P PP 100N CD SK3 MF RV165B al 10K LIN POT 5v TREBLE Pot arrow shows max boost K239 LINK10NP 15V lt gt 4 lt gt USE exlude A65 FILTER FOR BOM 218 219 100N CD 100N CD DRAWING THLE q A65 PLUS AMP 9855 C220 C22 C222 1 2 7220 00N cb 100N CDT 100N CD R C A M Filename 1942 4 1 0 SCH d lt gt lt gt lt gt Notes d A amp R Cambridge Ltd Pre amp Out Tone amp Headphone 01 E020 TGP 12 2 01 PRODUCTION RELEASE 10 Pembroke Avenue ECONo INITIALS DATE DESCRIPTION OF CHANGE ISSUE Waterbeach Cambridge CB5 9PB Contact Engineer Travis Pierce Contact Tel 01223 203 200 Printed 11 Dec 2001 Sheet 4 of 7 DRAWIN
40. COMPARITOR TA7317P 7101 506109 MOTOR DRIVER 506109 2905 5S408DJ 2 IC 8 TO 1 MUX DG408DJ DIL 2102 7103 54541307 3 IC QUAD SPST CMOS SW DG413DJ DIL 2105 2164 7171 6A310E 3 POT 10KB 2LIN RV165 RV166 RV167 6A360M 1 POT 20KA DUAL 18MM MOTORISED RV164 6F122 2 PRES 220R LIN HORIZ RV600 RV700 7D002C 2 TNDUCT 202 12x20mm 1600 1700 74005 1 4 00MHz X900 8A001 1 IEC MAINS CONN PCB INS PX SK300 8D225 4 PHONO SKT 4 WAY EMC GOLD SK100 SK101 SK102 SK103 8D301 1 TEREO JACK PCB SK162 8D420G 2 SPEAKER SOCKET GOLD 4MM DUAL PAIR CHUNKY SK600 SK700 8K8010 10 WAY FFC CONN VERT SK900 8M101 FARTH LEAD EL 80001 CAGE CLAMP 16 3 ARC001 236 SK301 80003 CAGE CLAMP 16A 1 WAY 003 236 SK302 80004 CAGE CLAMP 16A 3 WAY 004 236 SK304 80005 i CAGE CLAMP 16A 2WAY 236 402 000 009 SK303 8R002 2 MOLEX 2W 2 5MM P HOLDER VOLMOT900 VOLMOTA161 8R003 4 MOLEX 3W 2 5MM P HOLDER LK100A LK100 LK900 LK903 85004 2 FUSEHOLDER 20mm PCB FS300 FS301 A1007 1 SW PUSH MAINS SDDSA32MZU SW300 A1008 2 SW PUSH 2PCO 54162 SW163 A1009 SW PUSH 2PCO NON LATCHING SW900 A1013 SW PUSH 4PCO SW100 A207 RELAY G5Z 2A E 24V RLY1 B2107 REMOTE RX PIC 26043TM2 38KHZ RX900 E66901 1 MAINS SWITCH SPACER 519300 81801 4 X ALPHA AMP 75 65 HEATSINK HS600 HS601 HS602 HS603 E822AP 1 IR RX SUPPORT PAD SP1 E852MC 4 SAP TRANS Q2 PAD 21mm x 32mm SP600 SP601 SP700 SP701 E862MC 4 ALPHA AMP 65 75 HS CLIP HS600 HS601 HS602 PCB
41. CS1 2K233 3 SUPPR CAP 3N3 250V C300 C301 C302 2K410A 19 MMK5 100VDC 100N 20 Polyester cap 5mm pitch C154 C306 C307 C610 C611 C612 C613 C614 C615 C619 C623 C710 C711 C712 C713 C714 C715 C719 C723 2K422 4 PEST 220N 63V 10 C204 C205 C206 C207 2N510 4 ELST 100 50V 20 RA C105 C106 C148 C150 2N610 13 ELST 10U 50V C145 C146 C202 C203 C616 C617 C618 C625 C716 C717 C718 C725 C921 2N622 6 ELST 22U 63V C125 C126 C131 C132 C214 C215 2N647 2 ELST 47 35V C200 C201 2N647B 2 ELST 47u 100V C304 C305 2N710 5 ELST 100U 25V C149 C315 C316 C901 C915 2N710B 6 ELST 100U 100V C310 C311 C600 C601 C700 c701 2N722 1 ELST 220U 16V C914 2N722B 2 ELST 220u 50V C312 C313 2N810 1 LST 1M0 25V C920 2N910 2 ELST 10m 50V RA 32mm C308 C309 2P622AS2 2 ELEC 22U 16V SILMIC 2 RFS C602 C702 2P710AS2 4 ELEC 100u 16V SILMIC 2 RFS C151 C152 C605 C705 2P7102A 2 ELST 100U 25V ZA RUBYCON C624 C724 2V710 1 ELST NON POLAR 100UF 16V C147 2Z710D 4 EL 1000 50V 2 606 626 706 709 3A4148 39 SSDIODE 1N4148 75V D100 0101 102 D103 D104 D105 D106 D107 D108 D109 D110 D111 0112 0113 0114 0115 0116 0117 D118 D119 0120 D121 D122 D123 D124 D125 D126 D127 D132 D164 D165 D166 D167 D605 D606 D705 D706 D910 D911 3B4003 13 RECTIFIER 1N4003F 1A 200V D128 D129 D130 D300 D301 D302 D303 D603 D604 D703 D704 D906 2907 3BGBU8D 1 BRIDGE 8 200 BR300 3C04704 2 ZENER 4V7 400MW D600 D700 3C05104 1 Diode 5V1 400mW D908 3c05604 2 ZE
42. ER 5V1 400MW REMO900 E DIG LK903 3WAY CABLE HOLDER SW900A 2PCO NON LAT 5V ov DIG P900 0916 47 wt RX900 100N CD ov_DIG PIC 26043TM2 Y DIG SW900B ov_DIG 8914 0911 2860 NON LAT MUTE gt AKT ME 1N4148 PREMUTE gt 5V L856CA 6 C917 _ 100M cp REMOTE SENSOR SNAP OFF BOARD SP1 IR RX SUPPORT ov_DIG USE EXCLUDE TO CREATE RUN OUT SHEET FOR 75 USE EXCLUDE A65 TO CREATE RUN OUT SHEET FOR A65 29078 74HC4051 DRAWING TITLE R C Filename 1940 7 1 0 5 WARNING SAFETY CRITICAL COMPONENT Notes REPLACE WITH IDENTICAL PART i A amp R Cambridge Ltd uC Volume Drive Remote Contrglo1_F020 TGP 12 12 01 PRODUCTION RELEASE 1 0 Pembroke Avenue ECONo INITIALS DATE DESCRIPTION OF CHANGE ISSUE Waterbeach Cambridge CB5 9PB Contact Engineer Travis Pierce Contact Tel 01223 203 200 Printed 11 Dec 2001 Sheet 7 of 7 DRAWING NO L940C7
43. FILTER FOR BOM PHoNodc O am uc 100N CD i 1 cD ooN 15V D123 D127 100K C144 1 DRAWING TITLE 7 PPW 15V 15 65 PLUS 1N4148 1 4148 15 Filename 1942 3 1 0 5CH A amp R Cambridge Ltd Pembroke Avenue Waterbeach Cambridge CB5 9PB Notes Phono Stage amp Input Selection 01 6020 12 12 01 PRODUCTION RELEASE 1 0 ECO INITIALS DATE DESCRIPTION OF CHANGE ISSUE Contact Engineer Travis Pierce Contact Tel 01223 203 200 Printed 11 Dec 2001 Sheet 3 of 7 DRAWING NO R311 TOR FU C304 D300 Q300 Q304 R301 BC546B 4 546 4K7 47U EL 100V 1N4003F C310 38V R 38V
44. G NO L942C4 LEFT CHANNEL L940C5_1 0 SCH PHONO 8 INPUTS L940C3_1 0 SCH TONE CONTROL 1940 4 1 0 5 L940C6 1 0 SCI REMOTE CONTROL 1940 7 1 0 5 POWER SUPPLY 1940 2 1 0 5 RIGHT CHANNEL H USE EXCLUDE TO CREATE RUN OUT SHEET FOR 75 USE EXCLUDE A65 TO CREATE RUN OUT SHEET FOR A65 DRAWING TITLE A75 PLUS AMP ARCA Filename 1940 1 1 0 prj Notes A amp R Cambridge Ltd TOP SHEET FOR A75 L940AY 01 6000 12 12 01 PRODUCTION RELEASE 10 ate ECO No INITIALS DATE DESCRIPTION OF CHANGE ISSUE Cambridge CB5 9PB Contact Engineer Travis Pierce Contact Tel 01223 203 200 Printed 11 Dec 2001 Sheet 1 of 7 DRAWING NO L940C1 38V L 37V E E E v C600 C614 1000 EL 100V 8601 ene se 0613 CON BE ONE 215 0606 We 100R MF 100R MF 47R MF TRON PENGOV LOON OMAR EON _ V 0601 OV OV HF ZENER 400MW 27V 0601 0600
45. ING SAFETY CRITICAL COMPONENT REPLACE WITH IDENTICAL PART MT A75 PLUS RC Filename 1940 2 1 0 5CH Notes A amp R Cambridge Ltd POWER SUPPLY 01_E020 12 12 01 PRODUCTION RELEASE 1 0 Pembroke Avenue ECO INITIALS DATE DESCRIPTION OF CHANGE ISSUE Waterbeach Cambridge CB5 9PB Contact Engineer Travis Pierce Contact Tel 01223 203 200 Printed 11 Dec 2001 Sheet 2 of 7 DRAWING NO L940C2 37V G2 PAD SAP B Q2 PAD SAP C700 _ 0706 100U EL 100V 21000 50V YXF LOW Z e ph trea d M HF 0V HF D701 oWHE ZENER 400MW 27V 0701 0700 805568 805508 865666 bd SPLS700 ot 720 SK700B 470P CD SPKSKT G L 0704 0703 2SA970GR 258570061 C Oe 100 PPW 6KB MF 8721 470K ov Soc Bias R SPKSKT G 4 4 2SC2240GR C723 R705 SPLD700 100N PE 100V L 872 SET BIAS TO 12mV 100R MF 100N PE 100 10K MF R706 100RMF 0717 gt 1006 Q719 R700 RLY1B 4 1 pon E Go TKO 2U2H LAC SMALL RLY 657 2 C 220 SIMIG 2 8730 SK700A sue 0706 0707 C718 4R7 W2 R731 a C703
46. INGPAD 9 1PER L600L700 2PER RLY1 _ P M MAINS INSULATOR UNDER MOTHER PCB 11 _____ 2 pvALowAMP amp TUNERCHASSISASSY I 38290 2071 HEATISHUNTCHAMP 02 SUPPORTSPACER uNpERTX 11 _ _ 1 FOAMPAD _ CAPS 0171 1 1 E030AY REAR PANEL ASSEMBLY 102 E856MC 1 1 2 EIPM PUSHBUTTON 24 HH Eo7AY jpYAEXTENDEDPOWERBUTON HH 2 E879PM JES coNFIGuRATONLABEEL 1 E908MC KOO PAD HEATSINKSTOREARPANEL 2 F08 1 HEYCORUBBERGROMMET FOR SHORTING LINK 2 FO22 1 FUSEHOLDER COVER 0202 FO37 11 TOROIDCLAMP9OMM FopTX 1 98 1 RUBBER WASHER 90MM OD _ IONTOPOFTXK_ 1 Foo o IFce F065 CABLE CLIP FOR PROCESSOR SWITCH WIRE amp TX 3 SCREEN JF DAPNGSIRP FAONTEDGE O oo fetes L SNAPNSPACER rw 2 HO SNAPIN SPACE _ je mAsveea VCTORXPHMX6SIZP LEDPCBTOSUBPANEL 2 HAVA V ______________ _ j MA x 4mmSCREW HEATSINKFXSS pf eno PP Pi Som Hex BOLT ES CE SUBPAN PCB s s __ LIGHT PIPE SLEEVING 6mm
47. K107 LK108 LK109 LK110 LK111 LK112 LK113 LK114 LK115 LK116 LK117 LK118 LK119 LK120 LK121 LK122 LK123 LK124 LK127 LK128 LK129 LK130 LK131 LK132 LK133 LK134 LK135 LK136 LK137 LK138 LK139 LK140 LK141 LK142 LK143 LK145 LK148 LK149 LK150 LK151 ARCAM PCB 111 of Materials Document title A65 Plus Amplifier PCB Document number 194285 Issue 1 Revision 0 ECO number 01 020 Date 17 12 01 Created by TGP Page 3 of 6 1X015A 27 1X017A 6 1X020A 18 1227 il 2A010 2 2A047 2 2A147 2 2 210 3 2 310 2 322 1 2 410 30 2D110N 6 2D110W 10 LINK PLAIN 15mm LINK PLAIN 17 5mm LINK PLAIN 20mm JUMPER 2 W LEAD APL5 CERD 10P 63V 20 RA 47 63V 20 CERD 470P 63V 20 RA 1M0 63V 20 RA 10M 63V 20 RA 22N 63V 20 80 RA CERD 100M 63V 20 80 RA 100P 63V 5 PPRO W 100P 63 5 RA LK152 LK153 LK154 LK155 LK156 LK157 LK158 LK159 LK160 LK161 LK162 LK163 LK164 LK165 LK166 LK167 LK178 LK179 LK180 LK181 LK182 LK183 LK185 LK186 LK187 LK188 LK189 LK191 LK192 LK193 LK194 LK195 LK196 LK197 LK198 LK199 LK200 LK201 LK202 LK203 LK204 LK205 LK206 LK207 LK208 LK209 LK210 LK211 LK239 LK252 LK253 LK255 LK258 LK277 LK278 LK279 LK280 LK
48. K170 LK171 L856CA 1 JUMPER 3 WAY x 175mm LK100 894068 A 1 X PRINTED CIRCUIT BOARD PCB1 XXXXXXXX Obsolete absent redundant or incorrect issue in PDM E81801 4 ALPHA 75 65 HEATSINK HS600 HS601 HS602 HS603 L940PB A 1 X PRINTED CIRCUIT BOARD PCB1 65 Plus General Assembly ITEM 230V 115V 100V SILVER 1817 EO91AY 7 E829CP HA4V06S 5B483028 C12126 C12256 C12256 1 25 2 5 2 5 E033RP Eo33PP 2 F065 QTY BLACK WHERE USED E091AYB E830CP HA4V06B M4X6mm SCREW HOLTECH L818SW 65 FUSE FUSE AND SPARE REAR PANEL DAMPING PAD 1 PER L600 L700 2 PER RLY1 SEE 4 L881AY FOR POSITIONING UNDER MOTHER PCB UNDER TX RES CAPS UNDER TX FOR TX1 ON TOP OF TX CABLE CLIP FOR PROCESSOR SWITCH WIRE amp TX SCREEN TOP OF FRONT PCB Sub panel display MOTHER PCB RR PAN E HEAT SINK FXGS TX FXG COVER PCB SUB PAN RR PAN PHONOS COVER HJ4A00A M4 NUT 50 HJ4C00D M4 WAISTED NUT RR PAN E 3 _ s gt 1 73 76 55 3 2 59 6 57 10 15 11 14 12 13 67 71 16 5 56 64 74 51 52 75 42 46 47 48 40 41 J 9 gt gt gt m 3 2 1 A 65 Plus General Assembly 230V 115V 100V SILVER BLACK DESCRIPTION WHERE USED QTY HL4SA M4 SHAKE PROOF RR PAN 44 _ M4SHAKEPROOF 72 K5406 p LGHTPPESLEVNG
49. K217 LK218 LK219 LK230 LK231 LK232 LK233 LK234 LK235 LK236 LK237 LK238 LK240 LK241 LK242 LK243 LK244 LK245 LK257 LK265 LK271 K126 LK256 LK267 K268 LK269 LK270 LK272 125 LK220 LK221 LK222 LK223 LK224 LK225 LK226 LK227 LK228 LK229 LK246 LK247 LK248 LK249 LK250 LK251 LK254 VOLMOT 900 C196 C197 Cl 23 C124 C117 C620 C621 C720 2124 C303 622 C722 153 195 900 912 913 609 101 102 107 108 109 110 112 C113 114 115 116 118 213 216 217 218 219 220 221 222 223 224 C317 C318 C319 320 916 917 918 919 Cl119 c120 C121 C122 C210 C211 C227 C228 C603 C604 C607 C608 C703 C704 C C C C OO CO CO PCB Bill of Materials Document title 75 Plus Amplifier PCB Document numper L940RS Issue 1 Revision 0 ECO number 01 020 Date 17 12 01 Created by TGP Page 4 of 6 C707 C708 2D147W 12 PPRO W 470P 63V 5 RA C133 C134 C135 C136 C137 C138 C139 C140 C141 C142 C143 C144 2D213N 2 PPRO 1N3 63V 5 RA C129 C130 2D247N 4 PPRO 4N7 63V 5 RA C127 C128 C208 C209 2D422 1 220NF CLASS X2 CAP 275VRMS
50. K34 LK39 LK44 LK49 LK54 LK59 LK64 LK69 LK74 LK79 LK84 LK89 LK94 LK99 LK109 LK114 LK119 LK124 LK129 LK134 LK139 LK149 LK154 LK159 LK164 LK179 LK189 LK194 LK199 LINK10NP LINK10NP LINK1ONP LINK1ONP LINK10NP LINK1ONP LINK1ONP LINK1ONP LINK10NP LINKIONP LINK1ONP LINK1ONP LINK10NP LINK10NP LINK1ONP LINK10NP LINK1ONP LINK1ONP LINK1ONP LINK10NP LINK10NP LINK1ONP LINK10NP LINK10NP LINK1ONP LINK1ONP LINK10NP LINK10NP LINK10NP LINK10NP LINK10NP LINK10NP LINK10NP LINK10NP LINK10NP LK5 LK10 LK15 LK20 LK25 LK30 LK35 LK40 LK45 LK50 LK55 LK60 LK65 LK70 LK75 LK80 LK85 LK90 LK95 LK105 LK110 LK115 LK120 LK130 LK135 LK140 LK145 LK150 LK155 LK160 LK165 LK180 LK185 LK190 LK195 LK258 LINK10NP LINK10NP LINK10NP LINK10NP LINK10NP LINKIONP LINK1ONP LINK10NP LINK10NP LINK1ONP LINK1ONP LINK10NP LINK10NP LINK1ONP LINK1ONP LINK10NP LINK1ONP LINK1ONP LINK10NP LINK10NP LINK10NP LINK10NP LINK10NP LINK10NP LINK10NP LINK10NP LINK10NP LINK10NP LINK1ONP LINK1ONP LINK10NP LINK10NP LINK10NP LINK1ONP LINK1ONP LINK10NP LK125 NKO 1 201 LK202 LK203 LK204 LK205 LK206 LK207 LK208 LK209 LK210 LK211 LK277 LK278 LK279 LK280 LK281 LK252 LK253 LK255 LK300 LK301 LK303 LK304 LK265 LINK10NP LINK10NP LINK10NP LINK10NP LINK10NP LINKIONP LINK1ONP LINK1ONP LINK1ONP LINK1ONP LINK1ONP LINK1ONP LINKIONP LINKIONP LINK10NP LINK10NP LINK1ONP LINK1ONP LINK10NP LINK1ONP LINK10NP LINK10NP LINK10NP LINK15NP LK212 LK213 LK214 LK215 LK216 LK217 LK218 LK219 LK230 LK231 LK232 LK233 LK234 LK235 LK236 LK237 LK238 LK240 LK
51. N3 250V C300 C301 C302 2 410 19 5 100VDC 100 20 Polyester cap 5mm pitch C154 C306 C307 C610 C611 C612 C613 C614 C615 C619 C623 C710 C711 C712 C713 C714 CALS 2K422 4 220N 63V 10 204 205 206 207 2N510 4 ELST 100 50V 20 C105 C106 C148 C150 2N610 13 ELST 100 50V C145 C146 C202 C203 C616 C617 C618 C625 C716 C717 C718 C725 C921 2N622 6 ELST 22U 63V 125612 6 QT3L C132 C214 C215 2N647 2 ELST 47 35V C200 C201 2N647B 2 ELST 47u 100V C304 C305 2N710 5 ELST 100U 25V C149 C315 C316 C901 6915 2M7108 6 ELST 100U 100V 2320 6311 26006602 C700 C701 2N722 1 ELST 2200 16V C914 2 722 2 ELST 220 50 C312 313 2N810 2 ELST 1 0 25V C920 2N910 2 ELST 10m 50 32mm 2308 C309 2P622AS2 2 ELEC 220 16V SILMIC 2 RFS C602 C702 2P710AS2 4 ELEC 100u 16V SILMIC 2 RFS C15k 6T7152 C605 C705 2P7102A 2 ELST 100U 25V ZA RUBYCON C624 C724 2V710 1 ELST NON POLAR 100UF 16V C147 22710D 3 EL 100UF 50V LOW Z YXF C626 C706 C709 3A4148 39 SSDIODE 1N4148 75V D100 D101 D102 D103 D104 D105 D106 D107 D108 D109 D110 D111 0112 0113 0114 0115 0116 0117 D118 D119 0120 D121 D122 D123 D124 D125 D126 D127 D132 D164 D165 D166 D167 D605 D606 D705 D706 D910 D911 3B4003 13 RECTIFIER 1N4003F 1A 200V D128 D129 D130 D300 D301 D302 D303 D603 D604 D703 D704 0906 0907 3BGBU8D 1 BRIDGE RECTIFIER 200V BR300 3C04704 2 ZENER 4V7 400MW D600 D700 3C05104 1 Diode 5V1 400mW D908 3C05604 2 ZENER 5V6 400MW D131 D134
52. NER 5V6 400MW D131 D134 3C11004 2 ZENER 10V 400MW D306 D307 3C22704 4 ZENER 27V 400MW D601 D602 D701 D702 3C23905 2 ZENER 39V 500MW D304 D305 3D006 1 LED RED GREEN 3MM L 93WEGW D100 4A2240GR 7 TRANS LF SS N 2SC2240GR 0100 0610 0611 0612 ARCAM PCB 111 of Materials Document title 75 Plus Amplifier PCB Document number L940RS Issue 1 Revision 0 ECO number 01 E020 Date 17 12 01 Created by TGP Page 5 of 6 0710 0711 0712 44546 16 TRANS LF SS 546 0300 0304 0606 0607 0608 0609 0613 0618 0619 0706 0707 0708 0709 0713 0718 0719 45556 10 TRANS LE SS BC556B 0302 0305 0600 0601 0602 0605 0700 0701 0702 0900 4A970GR 6 TRANS SS 2SA970GR 0603 0604 0616 Q703 0704 0716 4B653 2 ZTX653 NPN Transistor 0617 0717 4CSAP15N 2 TRANS POWER 5 15 0614 0714 4CSAP15P 2 TRANS POWER PNP SAP15P 0615 0715 5A5532 IC AUDIO DUAL NE5532N 2100 58072 IC AUDIO DUAL 71072 2104 5B2134D 1 IC DUAL OPA2134PA 2163 584560 2 IC AUDIO DUAL 4560 2160 7161 5B483028 1 IC CMOS MICRO HT48R30 28 DIP B 0 2900 507805 IC VREG POS 7805 2300 507905 IC VREG 7905 2301 562401 IC CMOS EPROM 24001 7906 57744051 IC HCMOS PC74HC4051 2907 5M7317 IC
53. Point FIT ONLY ONE FUSE 5 Use correct screw and washer 37V 300 15V EL R300 1008 3 EARTH LEAD LK100 LK101 LK102 LK103 LK104 LK168 LK170 LK171 172 LK173 LK174 LK175 LK176 LK177 LK200 LK239 LK1 LK6 LK11 LK16 LK21 LK26 LK31 LK36 LK41 LK46 LK51 LK56 LK61 LK66 LK71 LK76 LK81 LK86 LK91 LK96 LK106 LK111 LK116 LK121 LK126 LK131 LK136 LK141 LK151 LK156 LK161 LK166 LK181 LK186 LK191 LK196 I LINK10NP LINK10NP LINK1ONP LINK1ONP LINK10NP LINK1ONP LINK1ONP LINK1ONP LINK10NP LINKIONP LINK1ONP LINK10NP LINKIONP LINKIONP LINK1ONP LINK10NP LINKIONP LINK1ONP LINK1ONP LINK10NP LINK10NP LINK1ONP LINK1ONP LINK10NP LINK17 5NPLINK10NP LINK1ONP LINK10NP LINK10NP LINK10NP LINK10NP LINK10NP LINK10NP LINK10NP LINK1ONP LINK10NP LK2 LK7 LK12 LK17 LK22 LK27 LK32 LK37 LK42 LK47 LK52 LK57 LK62 LK67 LK72 LK77 LK82 LK87 LK92 LK97 LK107 LK112 LK117 LK122 LK127 LK132 LK137 LK142 LK152 LK157 LK162 LK167 LK182 LK187 LK192 LK197 LINK10NP LINK10NP LINK10NP LINK10NP LINK10NP LINK1ONP LINK10NP LINK10NP LINK10NP LINK1ONP LINK10NP LINK10NP LINK10NP LINK10NP LINK10NP LINK10NP LINK1ONP LINK15NP LINK10NP LINK10NP LINK10NP LINK10NP LINK10NP LINK10NP LINK10NP LINK1ONP LINK10NP LINK10NP LINK10NP LINK1ONP LINK10NP LINK10NP LINK10NP LINK1ONP LINK1ONP LINK10NP LK3 LK8 LK13 LK18 LK23 LK28 LK33 LK38 LK43 LK48 LK53 LK58 LK63 LK68 LK73 LK78 LK83 LK88 LK93 LK98 LK108 LK113 LK118 LK123 LK128 LK133 LK138 LK143 LK148 LK153 LK158 LK163 LK178 LK183 LK188 LK193 LK198 LINK10NP LINK1ONP LINK
54. R730 1 133 2 RES 3308 5 R161 R162 12210 1 RES 1V 1 5 R153 1 227 2 RES 1W 2 7 5 R146 R147 1G010 2 RES MF FU 3 10R 5 NFR25 R311 R312 16147 1 RES MF W3 4708 5 NFR25 R148 1G810 1 RES MF W3 1RO 5 NFR25 R900 18010 1 RES W4 1 10R R904 1H047 10 RES W4 1 47R R154 R155 R230 R231 R613 R614 R615 R713 R714 R715 1H110 23 RES MF W4 1 100R R300 601 R602 R603 R604 R605 R606 R607 R608 R609 R610 R701 R702 R703 R704 R705 R706 R707 R708 R709 R710 R902 R903 1H122 1 RES W4 1 2208 R915 1H143 4 RES W4 1 430R R627 R628 R727 R728 1H147 2 RES MF W4 1 470R R108 R109 1H168 3 RES MF W4 1 680R R617 R621 R717 1H210 16 RES W4 1 1 0 R117 R118 R119 R120 R121 R122 R123 R124 R125 R126 R127 R128 R160 R240 R600 R700 1H212 2 RES MF W4 1 1K2 R238 R239 1H215 1 RES MF W4 1 1K5 R156 1H227 2 RES MF W4 1 2K7 R616 R716 1H233 4 RES MF W4 1 3K3 R214 R215 R216 R217 1H247 9 RES MF W4 1 4K7 R202 R203 R204 R205 R206 R207 R301 R302 R914 1H268 4 RES MF W4 1 6K8 R625 R626 R725 R726 1H282 2 RES MF W4 1 8K2 R114 R115 1H291 2 RES MF 1 9K1 R218 R219 1H310 15 RES MF W4 1 10K R145 R210 R213 R618 R619 R620 R622 R623 R624 R718 R719 R720 R723 R724 R913 1H311 2 RES MF W4 1 11K R220 R221 1H312 5 RES 4 1 12 R632 R633 R732 R733 Bill of Materials Document title 75 Plus Amplifier PCB
55. Service Manual 65 75 DIVA 65 75 amp P75 Plus Amplifiers ARCAM ARCAM Contents List Contents list Circuit description Service guide Circuit diagrams Component overlays Circuit board parts list General assembly parts list A65 75 75P Plus Circuit Description PSU In order get the output devices to turn fully on and achieve the greatest efficiency an auxiliary rail is formed from a charge pump driven by the main AC outputs from the transformer C304 305 amp D301 302 charge on alternate cycles In the other cycle the charge on C304 305 is pumped into C310 311 respectively This creates a voltage much greater than the standard rails but with low regulation and high ripple This is then regulated to 38V via emitter followers Q300 302 303 305 from a zener stabilized voltage 0304 305 The Pre amp 15V supply comes from linear regulators Z300 301 The transformer is a dual voltage unit the required voltage being selected by which fuse holder is fitted with the appropriate fuse If an alternative to 115V or 230V is required then a different transformer is fitted The secondary is centre tapped for the main rails but a separate winding is added for the uC supply The star ground point SP300 is not a component on the PCB and is on the schematic only for layout purposes Pre amp The direct signal path line in tone controls defeated consists of a single
56. _____ TORGID CLAMP 99MAM_L 1 11112 RUBBER WASHER 90MMOD ONTOPOFTX ______ 1 ee _ foee _ C PN 4 1 SCREEN 2164 j DAMPING STRIP TOPOFFRONT _ 400 2185 SNAP IN SPACER TXWIRES 2 At ae gt TecesosugPANEL J I 1 4 HA4AI2B M4X12mmSCREW 4 M4 x 45mm SCREW BLK HEATSINKFXGS __ 4 48 HA6K50A M6x50mmHEXBOLT _ IXXX 1 Noexemm SCREW BLK HF4V09B No 4 x 9mm SCREW BLK RR PAN PHONO SPKR TERMS 13 COVERPLATE 46 HJ4A00A M4 NUT 2 75 Plus General Assembly 230V 115V 100V SILVER BLACK DESCRIPTION WHERE USED HJ4COOD BRASS NUT EARTH 1 3 MSHAKEPFOOF 44 H4SB A3 M4SHAKEPROOOD 1141 4 K546 LIGHTPIPESLEEVE 15mm ovERLIGHTPIPES 7 K5408 LIGHT PIPE SLEEVE 6mm OVERLIGHTPIPES _ 1 30 L816TX L816TX L820TX ALPHA 8 TRANSFORMER 1141 7 l819CA FLEXFOIL DISPLAY TO MOTHER PCB 1 L885AY A75 DISPLAY 1 18 L940 V 75 ASSEMBLY P75 Plus General Assembly mem 230V 115V 100V SILVER BLACK DESCRIPTION _ WHEREUSED QTY L E829CP E830CP COVER PLATE O EAA a HA a ni 8K006 SHORTINGLINK FoRRPREARPANEL _ 1 7772 1 25A 25 2 5AT E802AP DAMP
57. er Document number 194185 Issue 1 Revision 0 ECO number 01 E020 Date 17 12 01 Created by TGP Page 2 of 3 LK151 LK152 LK153 LK154 LK155 LK156 LK157 LK158 LK159 LK160 LK161 LK162 LK163 LK164 LK165 LK166 LK167 LK178 LK179 LK180 LK181 LK182 LK183 LK185 LK186 LK187 LK188 LK189 LK190 LK191 LK192 LK193 LK194 LK195 LK196 LK197 LK198 LK199 LK201 LK202 LK203 LK204 LK205 LK206 LK207 LK208 LK209 LK210 LK211 LK278 LK279 LK280 LK281 LK300 LK304 1X015A 14 LINK PLAIN 15mm K215 LK216 LK217 LK218 LK219 LK231 LK232 LK233 LK234 LK235 LK236 LK237 LK238 LK265 1X017A d LINK PLAIN 17 5mm LK271 1X020A J LINK PLAIN 20mm K222 LK223 LK227 LK228 LK246 LK247 LK248 24147 5 CERD 470P 63V 20 GllT7T 0620 C621 C720 C721 2A210 gt 1M0 63V 20 C622 C722 2A310 1 10M 63V 20 80 153 2A322 T 22N 63V 20 80 RA C609 2A410 4 CERD 100N 63V 20 80 RA C317 C318 C319 C320 2D110W 8 PPRO W 100P 63V 5 RA C603 C604 C607 C608 C703 C704 C707 C708 2D422 1 220NF CLASS X2 275VRMS CS1 2K233 3 SUPPR 3N3 250V C300 C301 C302 2 410 19 5 100VDC 100 20 Polyester cap 5mm pitch C154 C306 C307 C610 C611 C612 C613 C614 C615 C619 C623 C710 CTL CIA C7
58. er PCB Document number L942RS Issue 1 Revision 0 ECO number 01 E020 Date 17 12 01 Created by TGP Page 6 of 6 L809CA 2 JUMPER 8 WAY LEAD K168 LK169 L825CA 1 7 WAY RIBBON 250mm LK170 L856CA 2 JUMPER 3 WAY x 175mm K100 LK900 L940PB A 1 X PRINTED CIRCUIT BOARD PCB1 Obsolete absent redundant or incorrect issue E81801 4 X ALPHA AMP 75 65 HEATSINK HS600 HS601 HS602 HS603 D CIRCUIT BOARD PCB1 L940PB A 1 X PRINT Bill of Materials Document title 75 Plus Amplifier Document number L940RS Issue 1 Revision 0 ECO number 01 020 Date 17 12 01 Created by TGP Page 1 of 6 Excluding parts for NF Part Qty 155 Description Designators Wwe PCB RL nish For drawing office use only Will be kitted from mechanical run out sheet C12126 1 FUSE 20mm 1 25A AS FS300 856 2 75 HEATSINK CLAMP CL600 CL601 F022 2 INS COVER PCB FUSEHOLDER FS300 FS301 F062 ii FUSE CLIP WCK 180 01A EL300 F185 2 TX WIRE RESTRAINT Y300 Y301 L816TX 1 ALPHA 8 AMP MULTI VOLTAGE TRANSFORMER TX300 PCB Build items 1B822 2 RES CF W4 5 2R2 R631 R731 1D110 2 RES CF W2 100R 5 R236 R237 1D847 2 RES 2 487 55 R630
59. g F 4 1N4148 1 4148 15 ov_SIG 126 DVDOR TAPECONTROL MF DVDR PHONO4G 15v 0121 D125 100K ME _ 470P PPW 1N4148 1 4148 15 15V 15V 8127 TAPEOL T TAPL MF is et D126 100068 0143 TAPE IN Sia ov Sia USE EXCLUDE NF TO CREATE RUN OUT SHEET FOR A75 1N4148 1N4148 15v c113 ov 56 NS 100N CD 35 USE EXCLUDE A65 TO CREATE RUN OUT SHEET FOR A65 TAPR TKO MF 35V 415v 0123 D127 100KME o144 DRAWING TITLE 470P PPW A75 AMPLIFIER PLUS 1N4148 1N4148 15 R C Filename 1940 3 1 0 SCH Notes amp R Cambridge Ltd Phono Stage amp Input Selection 01_E020 12 12 01 PRODUCTION RELEASE 1 0 ae ECO No DATE DESCRIPTION OF CHANGE ISSUE Cambridge CB5 9PB Contact Engineer Travis Pierce Contact Tel 01223 203 200 11 Dec 2001 Shet 3 of 7 DRAWING NO L940C3 R311 10R FU
60. h Cambridge CB5 9PB Contact Engineer Travis Pierce PRODUCTION RELEASE ECONo INITIALS DATE DESCRIPTION OF CHANGE ISSUE Contact Tel 01223 203 200 Printed 11 Dec 2001 Sheet 7 of 7 DRAWING NO L942C7 1 0 Q100 2SC2240GR 15V K101 10 LINK 4 _ I C145 NE5532 c101 4 e 3 E 100060 LK100A L856CA 0134 37V 1 8146 AU EL 2 CF C OV SIG _ 0146 2K7 1W 8110 8112 2 0129 58 54 t oies 3WAY CABLE HOLDER S ES LED RED GRN 3MM C127 C129 PME e 1 4003 R108 8K2 MF 18K 5V6 400MW 470R
61. inal 0 volts LK303 15 volts DC LK301 15 volts DC Q300 emitter 38 volts DC Q304 emitter 38 volts DC Q302 emitter 38 volts DC Q305 emitter 38 volts DC D910 emitter 5 volts DC remote supply IQ settings Model IQ setting Comments 22 01 02 A65 37mV 75 37mV 75 37mV 85 12mV Set for 8 5mV cold reset for 12mV when warm P85 12mV Set for 8 5mV cold reset for 12mV when warm A65 plus 12 to 15mV 75 plus 12 to 15mV P75 plus 12 to 15mV Hints amp tips D To isolate a fault between pre and power stage remove C602 left channel or C702 right channel Always check and re solder o p device 15 and SAP15P pin connections Replace 7900 IC if software version is below version 3 note version 82 is also Make sure R127 is not touching LK130 When replacing the top cover with a new top it may be necessary to re drill the fixing holes PHONO amp INPUTS L942C3_1 0 SCH LEFT CHANNEL 1942 5 1 0 5 CONTROL 194204 1 0 5 RIGHT CHANNEL L942C6_1 0 SCH REMOTE CONTROL L942C7_1 0 SCH POWER SUPPLY L942C2_1 0 SCH USE exlude A65 FILTER FOR BOM me A65 PLUS AMP A R Filename 1942 1 1 0 PRJ Notes A amp R Cambridge Ltd
62. l AV processor to control the volume setting The gain stage Z163 has a gain of 2 2 and the same low impedance output arrangement as the Tape output The signal from this stage to the Pre amp outputs and the Power amp input is controlled by a pre mute Z171 This removes thumps and clicks and in the case of the Power amp relay changing state removes signal so arcing will not take place Power Amplifier The new topology is a high gain voltage feedback design with a bipolar output stage Its signal path is designed to be fully symmetrical despite not having a symmetrical circuit symmetrical rail to rail This is achieved with a new dual differential input gain block where the input differential sees a symmetrical active load Q600 601 700 701 before driving the second voltage amplification stage VAS differential Q603 604 703 704 This could be described as two Wilson mirrors with their bases clamped together The second differential also has an active load of a more traditional mirror Q610 611 710 711 and this gives a push pull signal to the input of the output stage improving on the traditional single ended current source of the often called blameless topology The input pair Q606 607 618 619 706 707 718 719 are ina Darlington configuration to lower input current offset which in turn will lower DC offset at the output as the impedances seen on the input nodes are necessarily high for the wide bandwidth required The o
63. ot arrow shows boost LK239 1 2 10MM LI d USE EXCLUDE TO CREATE RUN OUT SHEET FOR 75 C218 C219 D 100N CD DHANNG TME 5 A75 PLUS ANP 9855 220 22 C222 2 1 2 7220 00N CD 100N CDT 100N CD R C Filename 1940 4 1 0 5 e Notes d A amp R Cambridge Ltd Pre amp Out Tone amp Headphone 01 020 12 12 01 PRODUCTION RELEASE 10 Pembroke Avenue ECONo INITIALS DATE DESCRIPTION OF CHANGE ISSUE Waterbeach Cambridge CB5 9PB Contact Engineer Travis Pierce Contact Tel 01223 203 200 Printed 11 Dec 2001 Sheet 4 of 7 DRAWING NO L940C4 3 5 6 7 8 SWI ALPS ENCODER 12NOTCH CD CJI SKI FFC10H OJ o oo r to sr co R903 R904 220R MF 220R MF LED901 LED902 LED903 LED904 LED905 LED906 LED907 LED GREEN3 1 MNILED GREBN3 1MM LED GREBN3 1MM LED GREEN3 1MM LED GREEN3 1M LED GREEN3 1MM LED GREEN3 1MM Phono CD Tuner VCR AV DVD TAPE AV FIXED GAIN PCB L885PB 1 DRAWING TITLE DISPLAY PCB FOR A75 AMP Circuit Diagram N A 31 07 00 PRODUCTION RELEASE 31 08 00 CORRECTED TO MATCH MAIN PCB 14 06 00 ADD FLEXFOIL CONNECTORS AND CHANGE ENCODER A amp R Cambridge Ltd N enny Industrial Centre Waterbeach ECO No INITIALS DATE DESCRIPTION OF CHANGE Cambridge CB5 9PB Filename Date Printed J PROJECTS a75 cct amp pcb issue b wip L885PB L885pb ddb
64. the micro controller uC to signal the output relay RLY1 status Also for output muting purposes the uC can switch the relay via Q100 Input Selection The uC controls the operation of the unit IR commands are received from RX900 on a break off PCB found on the front panel and fed via LK900 LK903 3 way ribbon On power on off the current state of the pre amp switching stored in an EEPROM 2906 The input switching is 5V logic level and is direct from the uC to the DPDT analogue switches in the case of Tape Monitor Z105 AV Z164 A75 only Pre mute Z171 and Mute Q100 The source selector is achieved by 8 way analogue multiplexors Z102 103 and the control signals are decoded from the uC from MUX1 2 3 by 7907 which also drives the appropriate front panel LED The input selection is set by the remote control or the rotary encoder on the front panel display PCB Tape monitor and AV mode A7S only is set by SW900 Volume Control The volume control is a motorized manual type where the signals are routed through the 8 way ribbon LK189 The motor drive comes from Z905 which is a logic level controllable motor driver It has its own unregulated PSU D907 C920 and the speed of the volume knob is dictated by the REF pin The circuit Q900 R905 901 C901 allows the speed to vary from just above stall to full as the volume control button is depressed on the remote SIM Module The connector PL161 P75 only allows the fitting of the ARCAM
65. utput stage is a simple bipolar darlington Q614 615 714 715 However the devices used are Darlington devices with integral diodes This means the bias temperature compensation is part of the output device enabling smaller number of devices no extra devices on the heatsink vital for this mechanical layout and more consistent temperature compensation of bias Also the resistors are also integral saving a large amount of PCB real estate and hand insertion cost while also able to be used as bias set test points and protection sensing Due to the decreased efficiency of this type of output stage over the previous bootstrapped Mosfet output a separate set of rails is required for the VAS stage in order to saturate the output transistors The operation of this is outlined in the Power supply section However these rails are individually regulated for each channel to decrease power supply crosstalk The protection of the output stage is taken care of by a proprietary IC Z101 This takes care of the switch on delay R150 C149 DC offset R102 103 C147 Thermal trip TH100 and safe operating area The safe operating area is monitored by a network which compensates for the voltage across the output devices current through them and duration of power R627 606 625 605 C617 amp symmetrical associated components and this is sent to the protection 1 via Q605 612 613 616 617 712 713 716 717 The output of the protection IC is sent to

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