Arcam-DivaP75-pwr-sm维修电路原理图.pdf

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1、A65/75 DiVA A65, A75 & P75 Plus Ampli ers Service Manual ARCAM Issue 1.0 RadioFans.CN 收音机爱 好者资料库 Contents List Contents list Circuit description Service guide Circuit diagrams Component overlays Circuit board parts list General assembly parts list RadioFans.CN 收音机爱 好者资料库 A65, A75 & P75 Service Guide

2、 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 device

3、s 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 & freezer spray Check tran

4、sformer connections Power supply test points Position Voltage LK125 +37 volts DC LK126 -37 volts DC LK271 or black speaker terminal 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 v

5、olts DC remote supply IQ settings Model IQ setting Comments - (22/01/02) A65 37mV A75 37mV P75 37mV A85 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 A75 plus 12 to 15mV P75 plus 12 to 15mV Hints & tips To isolate a fault

6、between pre and power stage remove C602 (left channel) or C702 (right channel). Always check and re-solder o/p device SAP15N and SAP15P pin connections. Replace Z900 IC if software version is below version 3 ( note version 82 is also ok ). Make sure R127 is not touching LK130. When replacing the top

7、 cover with a new top it may be necessary to re-drill the fixing holes. ISSUE DRAWING NO. DRAWING TITLE DATE Filename: ECO No.DESCRIPTION OF CHANGE L942C1_1.0.PRJ A65 PLUS AMP Contact Engineer: L942C1 11-Dec-2001 INITIALS Printed: 17Sheetof Notes: Contact Tel:(01223) 203 200Travis Pierce A & R Cambr

8、idge Ltd. Pembroke Avenue Cambridge CB5 9PB Waterbeach PWRLEFT PROTECTION A1 SP2_SEND_L SP2_RETN_L OP_L A1 LEFT CHANNEL L942C5_1.0.SCH ACLT1 MUTE AVCONTROL TAPECONTROL MUX1 MUX2 MUX3 PREMUTE PROT SENSE REMOTE CONTROL L942C7_1.0.SCH SELOPR SELOPL MUX1 MUX2 MUX3 TAPECONTROL ACSENSE PROT_OP_L PROT_OP_R

9、 PROTECTIONMUTE HPSW2 HPSW1 TAPOL TAPOR PROT SENSE PHONO & INPUTS L942C3_1.0.SCH ACSENSE ACLT1 POWER SUPPLY L942C2_1.0.SCH PWRRIGHT A1 SP2_RETN_R OP_R SP2_SEND_R A1 RIGHT CHANNEL L942C6_1.0.SCH PWRLEFT PWRRIGHT SELOPR SELOPL HPSW2 AVCONTROL HPSW1 SP2_SEND_L SP2_RETN_L OP_L OP_R SP2_SEND_R SP2_RETN_R

10、 PREMUTE TAPOR TAPOL PROT_OP_R PROT_OP_L TONE CONTROL L942C4_1.0.SCH TGP12/12/01PRODUCTION RELEASE1.0 USE exlude A65 FILTER FOR BOM 01_E020 TOP SHEET FOR A65 L942AY ISSUE DRAWING NO. DRAWING TITLE DATE Filename: ECO No.DESCRIPTION OF CHANGE L942C5_1.0.SCH A65 PLUS AMP Contact Engineer: L942C5 11-Dec

11、-2001 INITIALS Printed: 57Sheetof Notes: Contact Tel:(01223) 203 200Travis Pierce A & R Cambridge Ltd. Pembroke Avenue Cambridge CB5 9PB Waterbeach Q600 BC556B Q601 BC556B Q604 2SA970GR Q606 BC546B Q607 BC546B R617 680R MF R619 10K MF R618 10K MF R613 47R MF R614 47R MF R612 100K MF R600 1K0 MF PWRL

12、EFT Q611 2SC2240GR Q610 2SC2240GR R620 10K MF Q603 2SA970GR Q608 BC546B Q609 BC546B +C601 100U EL 100V + C600 100U EL 100V 0V_HF +C616 10U EL L600 2U2H LAC SMALL R631 2R2 CF R630 4R7 W2 CF D603 1N4003F +37V -37V C621 470P CD RLY1A RLY G5Z-2A-E C620 470P CD C622 1N0 CD SPLD600 SPLS600 PD6 OP_L SP2_SE

13、ND_L SP2_RETN_L R616 2K7 MF R611 100K MF C603 100P PPW 0V_SIG 0V_HF 0V_SIG 0V_HF Q612 2SC2240GR R627 430R MF R606 100R MF R605 100R MF R625 6K8 MF R622 10K MF R621 680R MF R629 47K MF +C617 10U EL Q605 BC556B A1 PROTECTION D604 1N4003F R628 430R MF R626 6K8 MF +C618 10U EL R608 100R MF R607 100R MF

14、A1 D605 1N4148 D606 1N4148 0V_LS_L 0V_LS_L Q602 BC556B R615 47R MF R601 100R MF R602 100R MF R603 100R MF R604 100R MF SPLE600 Left Channel Power Amplifier Q614 SAP15N Q615 SAP15P D600 4V7 400MW ISSUE DRAWING NO. DRAWING TITLE DATE Filename: ECO No.DESCRIPTION OF CHANGE L942C7_1.0.SCH A65 PLUS AMP C

15、ontact Engineer: L942C7 11-Dec-2001 INITIALS Printed: 77Sheetof Notes: Contact Tel:(01223) 203 200Travis Pierce A & R Cambridge Ltd. Pembroke Avenue Cambridge CB5 9PB Waterbeach WARNING SAFETY CRITICAL COMPONENT REPLACE WITH IDENTICAL PART uC, Volume Drive & Remote Control C912 10N CD C900 10N CD R9

16、00 1R0 FU D906 1N4003F D907 1N4003F + C920 1M0 25V C913 10N CD MOTE900 P900 +5v VOLUME DRIVEMOTOR DRIVER +5V GND 1 MD1 2 CC1 3 REF 4 MC1 5 MC2 6 VCC1 7 VCC2 8 CC2 9 MD2 10 Z905 BA6109 12 VOLMOT900 1Y271 ACLT1 MUTE MUX1 MUX2 MUX3 AVCONTROL TAPECONTROL R915 220R MF A0 1 A1 2 A2 3 VSS 4 SDA 5 SCL 6 WP

17、7 VDD 8 Z906 24C01 C917 100N CD X900 CST4.00 C918 100N CD +C914 220U EL +5v +5v +5v C919 100N CD 1 2 3 SW900A 2PCO_NON_LAT 4 5 6 SW900B 2PCO_NON_LAT R912 100K MF + C921 10U EL D910 1N4148 R913 10K MF +5v +5V R914 4K7 MF 0V_DIG 0V_DIG 0V_DIG 0V_DIG 0V_DIG 0V_DIG0V_DIG 0V_DIG 0V_DIG 0V_DIG 0V_DIG 0V_D

18、IG 0V_DIG VDD 16 GND 8 Z907B 74HC4051 R904 10R MF + C915 100U EL PREMUTE 0V_DIG +5V MOTSUP900 VOLM901 VOLM900 REMO900 C916 100N CD 1 2 3 LK903 3WAY CABLE HOLDER D911 1N4148 1 2 3 4 5 6 7 8 9 10 SK900 FFC10V R902 100R MF R903 100R MF ISSUE DRAWING NO. DRAWING TITLE DATE Filename: ECO No.DESCRIPTION O

19、F CHANGE L942C3_1.0.SCH A65 PLUS AMP Contact Engineer: L942C3 11-Dec-2001 INITIALS Printed: 37Sheetof Notes: Contact Tel:(01223) 203 200Travis Pierce A & R Cambridge Ltd. Pembroke Avenue Cambridge CB5 9PB Waterbeach 3 2 1 Z100A NE5532 C119 100P PP R100 47K MF R108 470R MF C124 47P CD + C125 22U EL R

20、110 680K MF R112 56K MF C127 4N7 PP C129 1N3 PP C120 100P PP R101 47K MF R109 470R MF C123 47P CD + C126 22U EL R111 680K MF R113 56K MF C128 4N7 PP C130 1N3 PP 5 6 7 Z100B NE5532 -15V +15V CD TUNER VCR AV/DVD TAPE IN TAPE OUT EMC 1 N F SK100A PHONO4G BOT 5 6 TOP 4 N F SK100B PHONO4G EMC 1 N F SK103

21、A PHONO4G N F SK103B PHONO4G EMC 1 N F SK102A PHONO4G N F SK102B PHONO4G EMC 1 N F SK101A PHONO4G 84 Z100C NE5532 Phono Stage & Input Selection D104 1N4148 D106 1N4148 D105 1N4148 D107 1N4148 D108 1N4148 D112 1N4148 D113 1N4148 D109 1N4148 D114 1N4148 D110 1N4148 D115 1N4148 D111 1N4148 D124 1N4148

22、D120 1N4148 D121 1N4148 D125 1N4148 D122 1N4148 D126 1N4148 D123 1N4148 D127 1N4148 D101 1N4148 D103 1N4148 D100 1N4148 D102 1N4148 R118 1K0 MF R119 1K0 MF R122 1K0 MF R123 1K0 MF R124 1K0 MF R125 1K0 MF R126 1K0 MF R127 1K0 MF R128 1K0 MF R121 1K0 MF R130 100K MF R131 100K MF R133 100K MF R134 100K

23、 MF R135 100K MF R136 100K MF R137 100K MF R142 100K MF R143 100K MF R144 100K MF +15v +15v +15v +15v +15v +15v +15v +15v +15v +15v +15v +15v -15v -15v -15v -15v -15v -15v -15v -15v -15v -15v -15v -15v VCROL VCROR TUNOL TUNOR CDOL CDOR DVDOL DVDOR TAPEOL TAPEOR AUXOL VCROL TUNOL CDOL DVDOL AUXOR VCR

24、OR TUNOR CDOR DVDOR TAPECONTROL MUX1 MUX2 MUX3 MUX1 MUX2 MUX3 +5v +5v +15v +15v +15v -15v -15v -15v TAPECONTROL R120 1K0 MF R117 1K0 MF R129 100K MF R132 100K MF AUXOL AUXOR TAPEOL TAPEOR C134 470P PPW C144 470P PPW C143 470P PPW C142 470P PPW C141 470P PPW C140 470P PPW C139 470P PPW C138 470P PPW

25、C137 470P PPW C135 470P PPW C136 470P PPW C133 470P PPW +5v R154 47R MF R155 47R MF C122 100P PP C121 100P PP D116 1N4148 D118 1N4148 D117 1N4148 D119 1N4148-15v -15v +15v +15v +15v +15v +15v -15v -15v -15v 5 6 7 Z104B TL072 3 2 1 Z104A TL072 84 Z104C TL072 SELOPL SELOPR R140 100K MF R141 100K MF MU

26、X3 MUX2 MUX1 TAPECONTROL +15V -15V RLY1C RLY G5Z-2A-E PWR 1 IN1 2 IN2 3 0V 4 V- 5 O 6 FB 7 RC 8 V+ 9 Z101 TA7317P R105 47K MF R103 47K MF R102 47K MF R104 47K MF+ C148 1U0 EL R149 100K MF D128 1N4003F R106 47K MF Q100 2SC2240GR R153 1K0 1W CF D130 1N4003F R145 10K MF R150 100K MF + C149 100U EL +37V

27、 R151 18K MF -37V R152 33K MF R107 47K MF D129 1N4003F R147 2K7 1W CF +37V R146 2K7 1W CF R G LED100 LED RED/GRN 3MM D131 5V6 400MW 1 3 2 LK100 L856CA R148 470R FU ACSENSE PROT_OP_L HPSW1 MUTEPROT_OP_R C112 100N CD C113 100N CD C109 100N CD C114 100N CD C110 100N CD C118 100N CD C107 100N CD C108 10

28、0N CD C101 100N CD C102 100N CD +C145 10U EL +C146 10U EL C115 100N CD C116 100N CD R139 100K MF R138 100K MF PROTECTION 0V_SIG 0V_SIG 0V_SIG 0V_SIG0V_SIG0V_SIG 0V_SIG 0V_SIG 0V_SIG 0V_SIG 0V_SIG 0V_SIG 0V_SIG 0V_SIG0V_SIG 0V_SIG 0V_SIG 0V_SIG0V_SIG 0V_SIG 0V_SIG 0V_SIG0V_SIG 0V_SIG 0V_SIG 0V_SIG 0V

29、_SIG 0V_SIG 0V_SIG 0V_SIG 0V_SIG 0V_SIG 0V_SIG 0V_SIG 0V_SIG 0V_SIG 0V_HF0V_HF 0V_HF 0V_HF 0V_HF 0V_HF 0V_SIG 0V_SIG R114 8K2 MF R115 8K2 MF R116 18K MF + C150 1U0 EL HPSW2 TAPECONTROL MUX1 MUX2 MUX3 C147 100U NP CDL CDR TUNL TUNR VCRL VCRR DVDL TAPL TAPR TAPOL TAPOR TAPOL TAPOR PHINL PHINR DVDR 1 2

30、 3 LK100A 3WAY CABLE HOLDER + C151 100U SILMIC 2 + C152 100U SILMIC 2 R157 100K MF R156 1K5 MF C153 10N CD TH100 PTH90DEG D132 1N4148 PROT SENSE 12 LK101 10MM LINK 12 LK102 10MM LINK 12 LK104 10MM LINK 12 LK103 10MM LINK Therm AC Det Prot RC +15v -15v D134 5V6 400MW C117 470P CD 0V_HF + C131 22U EL

31、+ C132 22U EL X0 4 X1 5 X2 6 X3 7 X4 12 X5 11 X6 10 X7 9 EN 2 A0 1 A1 16 A2 15 V- 3 D 8 GND 14 V+ 13 Z102 DG408DJ X0 4 X1 5 X2 6 X3 7 X4 12 X5 11 X6 10 X7 9 EN 2 A0 1 A1 16 A2 15 V- 3 D 8 GND 14 V+ 13 Z103 DG408DJ SEL1 1 S2 14 D1 2 V+ 13 S1 3 S3 11 V- 4 GND 5 VL 12 S4 6 D3 10 D4 7 SEL3 9 D2 15 SEL4

32、8 SEL2 16 Z105 DG413DJ TGP12/12/01PRODUCTION RELEASE1.001_E020 C154 100N PE 100V USE exlude A65 FILTER FOR BOM ISSUE DRAWING NO. DRAWING TITLE DATE Filename: ECO No.DESCRIPTION OF CHANGE L942C2_1.0.SCH A65 PLUS AMP Contact Engineer: L942C2 11-Dec-2001 INITIALS Printed: 27Sheetof Notes: Contact Tel:(

33、01223) 203 200Travis Pierce A & R Cambridge Ltd. Pembroke Avenue Cambridge CB5 9PB Waterbeach L N E NEL SK300 IEC3 FS300 AS1A25 + C308 10M EL 50V + C309 10M EL 50V +300 -300 +15V -15V +37V -37V SW300B A1007 SW300A A1007 SELECT VOLTAGE BY FITTING FS201 OR FS202 MAINS INPUT MAINS SWITCH FIT ONLY ONE F

34、USE Chassis Earth Point, Use correct screw and washer. R300 100R MF T300 T301 PD300 TOOLING FS301 AS2A5_115V Blue 1 Dark Grey 2 Orange 3 SK301 CAGECLAMP3 Green 1 SK302 CAGECLAMP1 Grey 1 Grey 2 SK303 CAGECLAMP2 Orange 1 Blue 2 Orange 3 SK304 CAGECLAMP3A GREEN300 OR300 OR301 BLUE301 BLUE300 POWER SUPP

35、LY ACSENSE ACLT1 C301 3N3 MAINS C300 3N3 MAINS C302 3N3 MAINS 0V_DIG 0V_HF PSUP300 NSUP300 MAINS_N300 MAINS_E300 MAINS_L300 WARNING SAFETY CRITICAL COMPONENT REPLACE WITH IDENTICAL PART PD301 TOOLING PD302 TOOLING PD304 TOOLING PD305 TOOLING Y300 TX WIRE CLIP PD311 TARGET1 PD312 TARGET1Y301 TX WIRE

36、CLIP PD306 TOOLING PD307 TOOLING C303 1N0 CD Photo Strip PS300 PHOTO_STRIP Spare Fuse Clip EL300 FUSE CLIP PD303 TOOLING PD308 TOOLING PD309 TOOLING PD310 TOOLING Paper Marker A1 Horizontal DD302 DD_A1H CEM1, 2 OZ Cu PCB MATERIAL DD300 CEM1_20Z 0V_DIG PCB PCB1 L940PB_A + 1 2 - 4 3 BR300 BRGBU8D Q300

37、 BC546B Q302 BC556B D303 1N4003F D300 1N4003F D301 1N4003F D302 1N4003F +C310 100U EL 100V +C311 100U EL 100V D304 ZENER 500MW 39V D305 ZENER 500MW 39V + C312 220U EL 50V + C313 220U EL 50V + C304 47U EL 100V + C305 47U EL 100V R301 4K7 MF R302 4K7 MF +38V_R -38V_R Q304 BC546B Q305 BC556B +38V_L -38

38、V_L R311 10R FU R312 10R FU AC +38V_R +37V_L -37V_R-37V_L LK1 LINK10NP LK6 LINK10NP LK11 LINK10NP LK16 LINK10NP LK21 LINK10NP LK26 LINK10NP LK31 LINK10NP LK36 LINK10NP LK41 LINK10NP LK46 LINK10NP LK51 LINK10NP LK56 LINK10NP LK61 LINK10NP LK66 LINK10NP LK71 LINK10NP LK96 LINK10NP LK76 LINK10NP LK81 L

39、INK10NP LK86 LINK10NP LK91 LINK10NP LK2 LINK10NP LK7 LINK10NP LK12 LINK10NP LK17 LINK10NP LK22 LINK10NP LK27 LINK10NP LK32 LINK10NP LK37 LINK10NP LK42 LINK10NP LK47 LINK10NP LK52 LINK10NP LK57 LINK10NP LK62 LINK10NP LK67 LINK10NP LK72 LINK10NP LK97 LINK10NP LK77 LINK10NP LK82 LINK10NP LK87 LINK15NP

40、LK92 LINK10NP LK3 LINK10NP LK8 LINK10NP LK13 LINK10NP LK18 LINK10NP LK23 LINK10NP LK33 LINK10NP LK38 LINK10NP LK43 LINK10NP LK48 LINK10NP LK53 LINK10NP LK58 LINK10NP LK63 LINK10NP LK68 LINK10NP LK73 LINK10NP LK98 LINK10NP LK78 LINK10NP LK83 LINK10NP LK88 LINK10NP LK93 LINK10NP LK4 LINK10NP LK9 LINK1

41、0NP LK14 LINK10NP LK19 LINK10NP LK24 LINK10NP LK29 LINK10NP LK34 LINK10NP LK39 LINK10NP LK44 LINK10NP LK49 LINK10NP LK54 LINK10NP LK59 LINK10NP LK64 LINK10NP LK69 LINK10NP LK74 LINK10NP LK99 LINK10NP LK79 LINK10NP LK84 LINK10NP LK89 LINK10NP LK94 LINK10NP LK5 LINK10NP LK10 LINK10NP LK15 LINK10NP LK2

42、0 LINK10NP LK25 LINK10NP LK30 LINK10NP LK35 LINK10NP LK40 LINK10NP LK45 LINK10NP LK50 LINK10NP LK55 LINK10NP LK60 LINK10NP LK65 LINK10NP LK70 LINK10NP LK75 LINK10NP LK80 LINK10NP LK85 LINK10NP LK90 LINK10NP LK95 LINK10NP LK106 LINK10NP LK111 LINK10NP LK116 LINK10NP LK121 LINK10NP LK131 LINK10NP LK13

43、6 LINK10NP LK141 LINK10NP LK151 LINK10NP LK156 LINK10NP LK161 LINK10NP LK166 LINK10NP LK196 LINK10NP LK181 LINK10NP LK186 LINK10NP LK191 LINK10NP LK107 LINK10NP LK112 LINK10NP LK117 LINK10NP LK122 LINK10NP LK127 LINK10NP LK132 LINK10NP LK137 LINK10NP LK142 LINK10NP LK152 LINK10NP LK157 LINK10NP LK16

44、2 LINK10NP LK167 LINK10NP LK197 LINK10NP LK182 LINK10NP LK187 LINK10NP LK192 LINK10NP LK108 LINK10NP LK113 LINK10NP LK118 LINK10NP LK123 LINK10NP LK128 LINK10NP LK133 LINK10NP LK138 LINK10NP LK143 LINK10NP LK148 LINK10NP LK153 LINK10NP LK158 LINK10NP LK163 LINK10NP LK198 LINK10NP LK178 LINK10NP LK18

45、3 LINK10NP LK188 LINK10NP LK193 LINK10NP LK109 LINK10NP LK114 LINK10NP LK119 LINK10NP LK124 LINK10NP LK129 LINK10NP LK134 LINK10NP LK139 LINK10NP LK149 LINK10NP LK154 LINK10NP LK159 LINK10NP LK164 LINK10NP LK199 LINK10NP LK179 LINK10NP LK189 LINK10NP LK194 LINK10NP LK105 LINK10NP LK110 LINK10NP LK11

46、5 LINK10NP LK120 LINK10NP LK130 LINK10NP LK135 LINK10NP LK140 LINK10NP LK145 LINK10NP LK150 LINK10NP LK155 LINK10NP LK160 LINK10NP LK165 LINK10NP LK180 LINK10NP LK185 LINK10NP LK190 LINK10NP LK195 LINK10NP LK201 LINK10NP LK202 LINK10NP LK203 LINK10NP LK204 LINK10NP LK205 LINK10NP LK206 LINK10NP LK20

47、7 LINK10NP LK208 LINK10NP LK209 LINK10NP LK210 LINK10NP LK211 LINK10NP LK212 LINK15NP LK213 LINK15NP LK214 LINK15NP LK215 LINK15NP LK216 LINK15NP LK217 LINK15NP LK218 LINK15NP LK219 LINK15NP LK220 LINK20NP LK221 LINK20NP LK222 LINK20NP LK223 LINK20NP LK224 LINK20NP LK225 LINK20NP LK226 LINK20NP LK22

48、7 LINK20NP LK228 LINK20NP LK229 LINK20NP LK246 LINK20NP LK247 LINK20NP LK248 LINK20NP LK249 LINK20NP LK250 LINK20NP LK251 LINK20NP LK254 LINK20NP LK230 LINK15NP LK231 LINK15NP LK232 LINK15NP LK233 LINK15NP LK234 LINK15NP LK235 LINK15NP LK236 LINK15NP LK237 LINK15NP LK238 LINK15NP LK240 LINK15NP LK24

49、1 LINK15NP LK242 LINK15NP LK243 LINK15NP LK244 LINK15NP LK245 LINK15NP LK265 LINK15NP LK257 LINK15NP LK256 LINK15NP LK267 LINK17.5NP LK270 LINK17.5NP LK268 LINK17.5NP LK271 LINK15NP LK269 LINK15NP LK272 LINK17.5NP LK277 LINK10NP LK278 LINK10NP LK279 LINK10NP LK280 LINK10NP LK281 LINK10NP LK252 LINK10NP LK253 LINK10NP LK255 LINK10NP Vin I GND G Vout O Z300 7805 Vin I GND G Vout O Z301 7905 ISSUE DRAWING NO. DRAWING TITLE DATE Filename: ECO No.DESCRIPTION OF CHANGE L942C6_1.0.SCH A65 PLUS AMP Contact Engineer: L942C6 11-Dec-2001 INITIALS Printed: 67Sheetof No