Cambridge-540AII-int-sm维修电路图 手册.pdf

《Cambridge-540AII-int-sm维修电路图 手册.pdf》由会员分享，可在线阅读，更多相关《Cambridge-540AII-int-sm维修电路图 手册.pdf（42页珍藏版）》请在收音机爱好者资料库上搜索。

1、 Gallery Court Hankey Place London SE1 4BB UK Tel: +44 (0)20 7940 2200 Fax: +44 (0)20 7940 2233 540A V2 Issue Date: 31st March 2006 _ SERVICE MANUAL _ SPECIFICATIONS: Power Output 60W (into 8) 90W (into 4) THD (unweighted) 0.002% 1kHz, of rated power 0.070% 20Hz 20kHz, of rated power 85dB Input impe

2、dances 47kohms Power Amp damping factor 100 Max power consumption 650w Min/On power consumption 35w (no signal) Standby power consumption 10w Bass / Treble controls Shelving, ultimate boost/cut + /-7.5dB 20Hz and 20kHz Dimensions 100 x 430 x 310mm (3.9 x 16.9 x 12.2”) Weight 7.4kg (16.3Lbs) AP19973/

3、1 1 RadioFans.CN 540A V2.0 SERVICE MANUAL TABLE OF CONTENTS Safety Precautions furthermore the manufacturer cannot accept responsibility for personal injury or property damage resulting therefrom. 6. When servicing, care should be taken to observe the original routing and dressing of the leads and i

4、t should be confirmed that they have been returned to normal after re-assembly. Notes on chip component replacement Never reuse a component that has been removed from a PCB Notice that the minus side of a tantalum capacitor may be damaged by heat 3 RadioFans.CN 21 17 25 10 18 (a) 8 19 (b) 2022 16 12

5、 23 6 14 312 4 24 5 15119 13 7 Drawing ref AP Part Factory part numberDescription 1PY6876560-150001-000AVOLUME KNOB ALUMINIUM SKIN AP133601 SILVER (use with PY680+PY681) 1PY6866560-150001-000VOLUME KNOB ALUMINIUM SKIN AP133601 BLACK (use with PY680+PY681) 2PY5926050-150004-002-02Azur-640A SELECTOR K

6、NOB SILVER 2PY5936050-150004-002-01Azur-640A SELECTOR KNOB BLACK 3PY7196050-150012-000-017MM TAC SWITCH BUTTON (BLACK) 3PY7206050-150012-000A017MM TAC SWITCH BUTTON (SILVER) 46050-150013-000A017MM PUSH SWITCH BUTTON SILVER FOR Azur-640A 46050-150013-0007MM PUSH SWITCH BUTTON BLACK FOR Azur-640A 5605

7、0-117821-000-02Azur-640A CONTROL BOX BUTTON SILVER 56050-117821-000-01Azur-640A CONTROL BOX BUTTON BLACK 6PY5416050-150010-000A01PLASTIC FOOT SILVER 6PY5316050-150010-000PLASTIC FOOT BLACK 7PY5446600-170100-000FOOT PAD FOR AZUR RANGE 8PY10583200-076771E000115/230V 30V*2/3A 17V*2/0.4A Azur-540A V2 AP

8、175704 9PY10326550-150017-001-02LARGER SIDE PANEL SILVER PAINTED 9PY10336550-150017-001-01LARGER SIDE PANEL BLACK PAINTED 10PY10346550-150037-000-02V2 AMP TOP PANEL SILVER PAINTED 10PY10356550-150037-000-01V2 AMP TOP PANEL BLACK PAINTED 11PY10368554-015010-701LARGER SUPPORT FRONT ASSY (WITH TWO BRAS

9、S INSERTS) 12PY10378554-015020-701LARGER SUPPORT REAR ASSY (WITH TWO BRASS INSERTS) 13PY10598554-015001-302Azur-540A V2-Silver AMP FRONT PANEL ASSY 13PY10608554-015011-302Azur-540A V2-Black AMP FRONT PANEL ASSY 14PY10409464-015002-041Azur-640A/540A V2 PIC CONTROL BOARD ASSY REV A 15PY10419464-015002

10、-171Azur-640A/540A V2 POWER SWITCH PCB REV A PY10429464-015002-191Azur-640A/540A V2 LED PCB ASSY REV A 16PY10619454-015002-071Azur-540A V2 POWER INPUT BOARD ASSY REV A 17PY10629454-015002-091Azur-540A V2 AMP POWER PCB ASSY REV A 18PY10459464-015002-001640A/540A V2 PROTECTION CIRCUITRY PCB-A ASSY REV

11、 A 19PY10469464-015002-101640A/540A V2 PROTECTION CIRCUITRY PCB-B ASSY REV A 20PY10479464-015002-331Azur-640A/540A A-Bus hub PCB ASSY REV A 21PY10489464-015002-341Azur-640A/540A V2 INPUT PCB ASSY REV A 22PY10499464-015002-541Azur-540A/640A V2 SPEAKER CONN. BOARD ASSY REV A 23PY9449805-054010-001AZUR

12、-540A/C,640A/C V2.0 REMOTE CONTROL ASSY REV A PY9456040-150002-000-01BATTERY-DOOR FOR Azur R/C BLACK PAINTED 24PY10566550-150021E001A03AZUR 540A V2.0 FRONT PANEL-Silver (Metal only) 24PY10546550-150021E001-03 AZUR 540A V2.0 FRONT PANEL-Black (Metal only) 25PY5157002-608010-001Screw M2.6 x 8 M/C Torx

13、 Recessed 1/K Head Black 25PY5167002-608010-006Screw M2.6 x 8 M/C Torx Recessed 1/K Head En-Plated PY10515100-641500E300AZUR 540A/640A V2 USER S MANUAL (AP183031) To enhance viewing, please print to A34 RadioFans.CN Cambridge Audio Azur 540A V2.0 Amplifier AP17649/5 Input PCB Schematic (Power Supply

14、) VI 1 VO 3 GND 2 U3 L7805 C26 47u 16V VI 1 VO 3 GND 2 U4 L7815 VI 2 VO 3 GND 1 U2 L7915 +5V DGND D2 1N4004 D3 1N4004 D4 1N4004 D5 1N4004 C35 100N 100V X7R C37 100N 100V X7R C27 100N 50V X7R C25 100N 50V X7R C31 47N PE 63V C34 47N PE 63V C30 47N PE 63V C29 47N PE 63V C28 100U 25V EL 105 C98 100U 25V

15、 EL 105 GENERAL NOTES 1. 2. 3. 4. 5. 1 2 3 CN8 3,96MM 3W ST HEADER C36 100N 100V X7R Unreg for Relays LK40 LK10MM Main +15V -15V LK86 LINK10MM LK83 LINK10MM LK79 LINK10MM LK75 LINK10MM LK71 LINK10MM LK63 LINK10MM LK67 LINK10MM -15V -15V LK82 LINK10MM LK78 LINK10MM LK74 LINK10MM LK70 LINK10MM LK64 LI

16、NK10MM LK66 LINK10MM +15V +15V LK88 LINK10MM LK47 LINK10MM LK44 LINK10MM LK41 LINK15MM LK42 LINK15MM +15V +15V -15V -15V LK13 LINK10MM LK6 LINK15MM LK7 LINK15MM LK12 LINK15MM LK17 LINK15MM LK23 LINK10MM LK26 LINK10MM LK28 LINK10MM LK22 LINK10MM LK29 LINK10MM LK30 LINK10MM LK32 LINK15MM LK31 LINK10MM

17、 LK34 LINK15MM C32 1000U 35V EL C33 1000U 35V EL LK50 LINK15MM LK48 LINK15MM AC Sense R55 4k7 C38 1U 25V D1 1N4004 R56 4k7 Q7 BC327 R114 4k7 +5V PIC Standby Relay Standby Relay Main LK98 LINK10MM J7 TERMINAL MainMain R e v 2 : D 8 R e mo v e d , L K 1 0 5 a n d 1 0 6 a d d e d . LK105 LK10MM LK106 L

18、K10MM D9 1N4004 D10 1N4004 R e v 4 : D 9 a n d D 1 0 a d d e d . C38 1U 25V R56 4k7 Q7 BC327 R114 4k7 +5V PIC Standby Relay Standby Relay LK105 LK10MM LK106 LK10MM D8 1N4148 R e v is io n 1 86-756-8687998 To enhance viewing, please print to A35 RadioFans.CN Cambridge Audio Azur 540A V2.0 Amplifier A

19、P17649/5 Input PCB Schematic (Buffer and Switches) Abus GND GENERAL NOTES 1. 2. 3. 4. 5. 2 3 1 84 U9:A NE5532N R112220R 1/8W R111220R 1/8W 6 5 7 U9:B NE5532N 2 3 1 84 U12:A NE5532N 6 5 7 U12:B NE5532N -15V +15V +15V -15V +15V -15V U6 U6 SW GND LCh In RCh In LCh Out RCh Out L R Vss 1 L-S1 2 L-S2 3 L-

20、S3 4 L-COM1 5 L-S4 6 L-S5 7 L-S6 8 L-COM2 9 L-S7 10 L-S8 11 L-COM3 12 ST 13 GND 14 Vdd 28 R-S1 27 R-S2 26 R-S3 25 R-COM1 24 R-S4 23 R-S5 22 R-S6 21 R-COM2 20 R-S7 19 R-S8 18 R-COM3 17 DATA 16 CLK 15 U11 TC9163AF 6 CN14:D AV4-8,4-9 3 CN13:B AV4-8,4-9 6 CN13:D AV4-8,4-9 A u x C D D A B D V D MD T O 1

21、T O 2 T M P O 3 CN12:B AV4-8,4-9 6 CN12:D AV4-8,4-9 3 CN15:B AV4-8,4-9 PreOut Left PreOut Right PreOut Left PreOut Right 6 CN15:D AV4-8,4-9 1 2 CN16:A AV2-8,4-9 SW GND 3 CN16:B AV2-8,4-9 2 3 1 84 U14:A NE5532N -15V +15V C67 47n 63V PE C68 47n 63V PE R96 47k 1/8W 2 3 1 84 U13:A NE5532N R93 47k 1/8W 2

22、 3 1 84 U15:A NE5532N -15V +15V C71 47n 63V PE C72 47n 63V PE R89 47k 1/8W 2 3 1 84 U16:A NE5532N R85 47k 1/8W 2 3 1 84 U17:A NE5532N -15V+15V C76 47n 63V PE C75 47n 63V PE R81 47k 1/8W 2 3 1 84 U18:A NE5532N R73 47k 1/8W 6 5 7 U13:B NE5532N -15V +15V C70 47n 63V PE C69 47n 63V PE R91 47k 1/8W 6 5 7

23、 U14:B NE5532N R95 47k 1/8W 6 5 7 U16:B NE5532N -15V C74 47n 63V PE C73 47n 63V PE R83 47k 1/8W 6 5 7 U15:B NE5532N R87 47k 1/8W 6 5 7 U18:B NE5532N -15V +15V C44 47n 63V PE C45 47n 63V PE R110 47k 1/8W 6 5 7 U17:B NE5532N R79 47k 1/8W C91 47N PE 63V C9247N PE 63V C41 47N 63V PE C42 47N 63V PE R104

24、1k8 R105 1k8 R103 1k8 R102 1k8 C90 10P 50V NPO C93 10P 50V NPO R99 100R R98 100R C88 100N 50V X7R C89 100N 50V X7R R109 1k 1/8W R78 1k 1/8W R82 1k 1/8W R86 1k 1/8W R90 1k 1/8W R94 1k 1/8W R97 1k 1/8W R92 1k 1/8W R88 1k 1/8W R84 1k 1/8W R80 1k 1/8W R72 1k 1/8WC83 100p 50V NP0 C48 100p 50V NP0 C53 100

25、p 50V NP0 C57 100p 50V NP0 C61 100p 50V NP0 C65 100p 50V NP0 C66 100p 50V NP0 C62 100p 50V NP0 C58 100p 50V NP0 C54 100p 50V NP0 C50 100p 50V NP0 C46 100p 50V NP0 R75 220R 1/8W R76 220R 1/8W R74 220R 1/8W R77 220R 1/8W 3 CN14:B AV4-8,4-9 1 2 CN14:A AV4-8,4-9 4 5 CN14:C AV4-8,4-9 1 2 CN13:A AV4-8,4-9

26、 4 5 CN13:C AV4-8,4-9 1 2 CN12:A AV4-8,4-9 4 5 CN12:C AV4-8,4-9 1 2 CN15:A AV4-8,4-9 4 5 CN15:C AV4-8,4-9 LK60 LINK15MM LK51 LK15MM +15V C64 10U NP 16V C63 10U NP 16V C60 10U NP 16V C59 10U NP 16V C56 10U NP 16V C55 10U NP 16V C52 10U NP 16V C51 10U NP 16V C49 10U NP 16V C47 10U NP 16V C81 10U NP 16

27、V C82 10U NP 16V LK62LK10MM LK57 LK10MM LK56 LK15MM LK53 LK15MM LK55LK10MM LK54 LK10MM LK92 LK10MM LK90 LK15MM LK91 LK15MM LK9 LK15MM LK8 LK15MM U6 U6 LK89 LK15MM LK99 LK15MM LK97LK10MM LK93 LK10MM LK94 LK10MM R100 470k R101 470k LK95 LK10MM LK96 LINK15MM LCh HP Out RCh HP Out LK5LK15MM LK43 LK15MM

28、1 2 3 CN10 2,5MM 3W ST HEADER ABUS Audio Out R106 560R R107 560R 1 2 3 4 5 6 7 CN5 2,5MM 7W ST HEADER To PIC C l o c k D a t a S t r o b e D G n d f r o m P I C C o n t r o l B u s I R A B U S I R A mp Mu t e C o n t r o l B u s I R A B U S I R A B U S S t a t u s R C h G N D L C h 1 2 3 4 5 CN9 2,5

29、MM 5W ST HEADER ABUS Control Signals A B U S P C B D G n d LK101 LK10MM C87 1N 50V NP0 J1 TERMINAL R113 47R no stuff C86 1N 50V NP0 no stuff J2 TERMINAL C80 100p 50V NP0 C78 100p 50V NP0 U6 U6 C77 100p 50V NP0 C79 100p 50V NP0 U6 U6 C85 100P 50V NP0 C84 100P 50V NP0 2 3 1 84 U10:A NE5532N -15V +15V

30、C40 47n 63V PE C39 47n 63V PE U6U6 6 5 7 U10:B NE5532N U6 U6 U6 LK49 LK15MM LK52 LINK15MM LK58 LK10MM LK61 LK10MM LK59 LINK15MM A B U S P C B + 5 V+5VOLTS LK100 LK15MM LK85 LK10MM LK87 LK10MM LK68 LK10MM LK69 LK10MM LK73 LK10MM LK77 LK10MM LK81 LK10MM LK84 LK10MM LK80 LK10MM LK76 LK10MM LK72 LK10MM

31、LK65 LK10MM R581k8 R591k8 J4 TERMINAL J5 TERMINAL J6 TERMINAL J8 TERMINAL R61 3k6 U6 R60 3k6 U6 U6 R e v 1 : R e s i s t o r s R 7 2 , 7 8 , 8 0 , 8 2 , 8 4 , 8 6 , 8 8 , 9 0 , 9 2 , 9 4 , 9 7 , 1 0 9 c h a n g e d t o 7 5 R G N D L i n k s o n u n d e r s i d e Amp Mute Standby Relay R e v 4 : R e

32、s i s t o r s R 7 2 , 7 8 , 8 0 , 8 2 , 8 4 , 8 6 , 8 8 , 9 0 , 9 2 , 9 4 , 9 7 , 1 0 9 c h a n g e d t o 1 k 86-756-8687998 To enhance viewing, please print to A36 RadioFans.CN Cambridge Audio Azur 540A V2.0 Amplifier AP17649/5 Input PCB Schematic (Tone Control) GENERAL NOTES 1. 2. 3. 4. 5. R20 4k7

33、 R23 1k1 R24 1k1 R17 2k2 R19 2k2 SW2:A SW-DPDT Tone Defeat Out -15V +15V R36 2k2 R35 2k2 R22 4k7 R26 1k1 R25 1k1 R18 2k2 R21 2k2 SW2:B SW-DPDT Tone Defeat -15V +15V R37 2k2 R38 2k2 U2 out Out -15V +15V U2 U4U4 OutOut U2 +15V -15V 2 3 1 84 U6:A NE5532N 6 5 7 U6:B NE5532N 2 3 1 84 U5:A NE5532N 6 5 7 U

34、5:B NE5532N U26 5 7 U7:B NE5532N 2 3 1 84 U7:A NE5532N RCh In LCh In RCh Out LCh Out U2 U4 U4 R15 150k R14 150k R16 150k R13 150k 46 5 VR3:B 20K MOTORISED DUAL POT 13 2 VR3:A 20K MOTORISED DUAL POT 46 5 VR4:B MN20K BALANCE 13 2 VR4:A MN20K BALANCE 13 2 VR2:A B5K LINEAR 46 5 VR2:B B5K LINEAR 13 2 VR1

35、:A B5K LINEAR 46 5 VR1:B B5K LINEAR 1 2 3 4 5 6 CN3 H6 2.54mm TO POWER AMP C5 47U NP 16V C11 47U NP 16V C4 47U NP 16V C747U NP 16V RCh Out LCh Out C103 47N 63V PE C102 47N 63V PE C14 47N 63V PE C16 47N 63V PE C9 47N 63V PE C10 47N 63V PE C18 10P 50V NPO C23 10P 50V NPO C8 10P 50V NPO C13 10P 50V NPO

36、 C19 1N5 63V PE C20 1N5 63V PE C22 680N 63V PE C21 680N 63V PE LK37 LK15MM U4 LK25 LK10MM LK24 LK10MM LK21 LK15MM LK19 LK15MM R33 22R R34 22R LK35 LINK15MM LK20 LK15MM LK27 LK10MM LK18 LK15MM R29 22k R31 22k Out Out C6 10N PP 63V C12 10N PP 63V C3 10N PP 63V C2410N PP 63V C104 10U NP 16V C101 10U NP

37、 16V C105 10N PP 63V C100 10N PP 63V LK36 LINK15MM R32 1k5 R30 3k Out R27 1k5 R28 3k Out C106 10P 50V NPO C99 10P 50V NPO C15 100U 25V EL C17 100U 25V EL LK33 LK15MM J3 TERMINAL 1 2 CN17 2MM 2W ST HEADER 3 4 5 RL1:B ME2-5S 6 7 8 RL1:C ME2-5S 1 2 RL1:A ME2-5S +5VOLTS D8 1N4004 Q9 MPSA14 R122 10k R123

38、 1k MAIN Amp Mute R e v 2 : R L 1 , D 8 , Q 9 , R 1 2 2 , R 1 2 3 , L K 1 0 4 , 1 0 7 - 1 0 9 a d d e d . LK16 LK10MM LK104 LK10MM LK107 LK10MM LK108 LK15MM LK109 LK15MM 86-756-8687998 To enhance viewing, please print to A37 RadioFans.CN Cambridge Audio Azur 540A V2.0 Amplifier AP17649/5 Input PCB S

39、chematic (Protection Circuitry) +5Volts R66 1k For 1mA R64 10k R67 100R R65 2R7 DGND 3 2 1 84 U8:A LM393 D7 1N4148 +5V Speaker short circuit tester R69 4k7 (Open Collector Output) Senses a DC resistance of 2 ohms or less D6 1N4004 PIC VI/Short C43 100N 50V X7R Speaker Test DGND +5V SW1:B SW-DPDT TAP

40、E SPEAKER B SWITCHING (for relay) Speaker Test Speaker A Relay Unreg for Relays 1 2 3 4 5 6 CN11 2,5MM 6W ST HEADER To Speaker PCB CN1 PIC Standby Relay Unreg for Relays DGND 1 2 3 CN7 2,5MM 3W ST HEADER R57 220R 2W Carbon R108 220R 2W Carbon PIC VI/Short PIC DC PIC CLIP PIC Temp Speaker A Relay PIC

41、 Standby Relay 1 2 3 4 5 6 7 8 CN6 2,5MM 8W ST HEADER To PIC GENERAL NOTES 1. 2. 3. 4. 5. Ma i n s P C B C o n t r o l S p e a k e r P C B C o n t r o l P I C P r o t e c t i o n s i g n a l s S p e a k e r C a b l e S h o r t C i r c u i t D e t e c t o r LK103 LK10MM LK14 LK10MM LK15 LK10MM 5 6 7

42、U8:B LM393 LK102 LK10 LINK15MM LK46 LK11 LINK15MM LK45 LK10MM 1 2 3 4 5 CN4 2,5MM 5W ST HEADER DGND PIC VI/Short PIC DC PIC CLIP Temp Sense R116 10k R115 10k DGND +5V PIC Temp R63 910R 910 / (910 + 10k) with ZP221A501E voltage gives 100deg C cutout +5Volts Temp Sense R71 4k7 R70 10k R117 4k7 Open Co

43、llector Output Q8 BC337 LK39 LK10MM LK38 R68 100k R62 no stuff C108 100N 50V X7R C107 100U 16V EL DGND +5V R e v 3 : R 6 5 C h a n g e d f r o m 1 0 R t o 8 R 2 R e v 4 : R 6 5 C h a n g e d f r o m 8 R 2 t o 4 R 7 R e v 5 : R 6 5 C h a n g e d f r o m 4 R 7 t o 2 R 7 86-756-8687998 To enhance viewi

44、ng, please print to A38 RadioFans.CN Cambridge Audio Azur 540A V2.0 Amplifier AP17649/5 Input PCB Schematic (Headphone Driver) Main +15V -15V R54 10R R53 10R 6 5 7 U1:B NE5532N R8 1R R6 1R R41 2k7 R40 3k3 R43 560R R42 560R R39 5k6 R7 5k6 Q6 BD139 Q5 BD139 Q4 BD140 R9 180R Main RSW1 RSW2 R L GND 2 3

45、1 7 8 CN1 HEADPHONE JACK Main C96 47N 63V PE C95 47N 63V PE 2 3 1 84 U1:A NE5532N R3 1R R1 1R R46 2k7 R45 3k3 R48 560R R47 560R R44 5k6 R2 5k6 Q3 BD139 Q2 BD139 Q1 BD140 R4 180R Main GENERAL NOTES 1. 2. 3. 4. 5. R11 10R 2W R12 10R 2W RCh HP Out R52 100R R51 No Stuff Main LCh HP Out R49 100R R50 No S

46、tuff Main C97 470U 25V EL C94 470U 25V EL R5 360R R10 360R C2 10N 63V PE C1 10N 63V PE Main LK2 LINK10MM LK1 LINK10MM LK3 LINK10MM LK4 LINK10MM 1 2 CN2 2,5MM 2W ST HEADER R118 1k5 R119 3k R120 1k5 R121 3k Main Main R e v 1 : R e s is t o r s R 1 1 8 - 1 2 1 a d d e d ( R c h O u t ) ( L c h O u t )

47、R e v 2 : R e s is t o r s R 1 1 , R 1 2 , R 1 1 8 - 1 2 1 v a lu e s c h a n g e d . 86-756-8687998 To enhance viewing, please print to A39 RadioFans.CN Cambridge Audio Azur 540A V2.0 Amplifier AP17649/4 Input PCB Board Layout (Top Side) Super Hi-Fidelity Ultra Linear Preamp Stage 86-756-8687998 To

48、 enhance viewing, please print to A310 RadioFans.CN Cambridge Audio Azur 540A V2.0 Amplifier AP17649/4 Input PCB Board Layout (Bottom Side) 86-756-8687998 To enhance viewing, please print to A311 RadioFans.CN AP17652/5 AP Part No ValueDescription/TypeFactory Part No.QtyComponent IdentNotes RESISTORS

49、 1R0.25W metal film4R1, 3, 6, 8. 2R70.25W metal film1R65 See Input Schematic (Protection Circuitry) 10R0.25W metal film2R53, 54 22R0.25W metal film2R33, 34 100R0.25W metal film5R49, 52, 67, 98, 99. 180R0.25W metal film2R4, 9 360R0.25W metal film2R5, 10 560R0.25W metal film6R42, 43, 47, 48,106,107 910R0.25W metal film1R63 1K0.25W metal fil