Arcam-A28-int-sch维修电路图 手册.pdf

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1、ISSUE DRAWING NO. DRAWING TITLE DATE Filename: ECO No.DESCRIPTION OF CHANGE L991CT1_2.2.SCH A28/P28 - Top Level Sheet Contact Engineer: L991C1 25-Apr-2008 INITIALS Printed:18Sheetof Notes: Contact Tel:(01223) 203 200Andrew Dutton A Fit jumper on pins: MJT07/04/08Removed handbag link ITEM4002.208_E07

2、6 MN25/04/08No changes to this sheet2.308_E088 RadioFans.CN ISSUE DRAWING NO. DRAWING TITLE DATE Filename: ECO No.DESCRIPTION OF CHANGE L991CT5_2.2.SCH A28/P28 - Power Amp Right Contact Engineer: L991C5 25-Apr-2008 INITIALS Printed:58Sheetof Notes: Contact Tel:(01223) 203 200ANdrew Dutton A Fit jump

3、er on pins: MJT07/04/08Removed handbag link ITEM5002.208_E076 MN25/04/08No changes to this sheet2.308_E088 RadioFans.CN ISSUE DRAWING NO. DRAWING TITLE DATE Filename: ECO No.DESCRIPTION OF CHANGE L991CT8_2.2.SCH A28/P28 Display Circuitry Contact Engineer: L991C8 25-Apr-2008 INITIALS Printed:88Sheeto

4、f Notes: Contact Tel:(01223) 203 200Andrew Dutton A 0V_PREOUT Q727 Q718 Q719 Q714 P28 TRIGGER IN TRIGGER OUT TR701 BC849B SOT-23 R727 10K 0W125 0805 TR700 BD179 TO-126 C720 10UF 50V YK +45V_L C701 100N 50V 0805 0V_CHASS L700 70R100MHz R715 100R 0W125 0805 DZ700 BZX84C 15V SOT-23 Vout=0.82Vin R728 10

5、K 0W125 0805 C710 100P 100V 0805 C700 100N 50V 0805 13.5V 30mA max R738 2K2 0W125 0805 0V(D) C717 100UF 25V YK R705 100K 0W125 0805 D702 BAV99SOT-23 D703 BAV99SOT-23 SET SENSITIVITY R723 680R 0W125 0805 P28 DELAYED OFF 0.38Hz_CLK 0V(D) +4.8V(D) +45V_L +4.8V(D) 0V(D) +45V_L 0V_CHASS 0V_CHASS REMOTE_P

6、 TRIG_IN C709 100N 50V 0805 VCC 16 GND 8 IC701B 74HCT4040D SO-16 C708 100N 50V 0805 0V(D) 0V(D) 0V(D) +4.8V(D)_2 Q713 (NF ON A28) Jumper Not Fitted = 2mVrms Q724 Q715 Q709 Power-On Reset *RESET C711 100P 100V 0805 C712 100P 100V 0805 R735 47R 0W125 0805 ITEM7000Con Jumper Socket 0.1IN Gold Blue - Th

7、is part is RoHS compliant.8K004 R725 22K 0W125 0805 R724 22K 0W125 0805 C721 220UF 16V YK C715 100UF 25V YK +4.8V(D)_2 R718 1K0 0W125 0805 R719 1K0 0W125 0805 R720 1K0 0W125 0805 R736 3K3 0W125 0805 R737 2K2 0W125 0805 LATCH +4.8V(D)_2 CLK 3 D 2 SD 4 RD 1 Q 5 Q 6 IC703A 74HCT74D SO-14 CLK 11 D 12 SD

8、 10 RD 13 Q 9 Q 8 IC703B 74HCT74D SO-14 VCC 14 GND 7 IC703C 74HCT74D SO-14 TR702 MMUN2111LT1 SOT-23 +4.8V(D)_2 R733 3K3 0W125 0805 0V(D) ANNOTATION NF ON A28 D700 BAV99 SOT-23 D701 BAV99SOT-23 R726 22R 0W125 0805 0.38Hz_CLK P708 P707 P701 P704 P702 P710 P712 P705 P713 P711 P714 P724 0V(D) R706 0R0 0

9、W125 0805 C705 100N 50V 0805 NF ON P80 REMOTE_N - Vin D704 BAT54SSOT-23 +4.8V(D) 12 R707 4K7 0W125 0805 (NF ON A28) TO SHEET 6 C706 100N 50V 0805 R708 100K 0W125 0805 DZ701 BZX84C 4V7 SOT-23 1 2 CON701 HARWIN M20-973 1 2 CON700 HARWIN M20-973 R713 100K 0W125 0805 R711 22K 0W125 0805 R712 22K 0W125 0

10、805 R716 330R 0W125 0805 R717 330R 0W125 0805 Jumper Fitted = 0.5mVrms (default); Jumper Not Fitted = 2mVrms R714 0R0 0W125 0805 R721 0R0 0W125 0805 0V(D) NF P706 P700 P703 P709 P715P716 A28 NC1 NC2 SKT700 HOSIDEN HSJ SLRR12/09/2007None to this sheet1.007_E156 PK28/11/07None to this sheet2.007_E226

11、MJT25/03/08None to this sheet.2.108_E069 MJT07/04/08Removed handbag link ITEM7002.208_E076 MN25/04/08No changes to this sheet2.308_E088 RadioFans.CN ISSUE DRAWING NO. DRAWING TITLE DATE Filename: ECO No.DESCRIPTION OF CHANGE L991CT6_2.2.SCH A28/P28 Protection NF ON P28 0V(D) Connect near IC602 R625

12、4K7 0W125 0805 R665 4K7 0W125 0805 R631 10K 0W125 0805 R663 0R0 0W125 0805 VOL_*CS_u VOL_*CS_u R6001K0 0W125 0805 Q642 VOL_*CS Q645 Q643 Q644 REMOTE_N C632 47P 100V 0805 C633 47P 100V 0805 P600 P630 P632 P631 Q602 P633 NF ON A28 A28 PB5 1 PB4 2 PA3 3 PA2 4 PA1 5 PA0 6 PB3 7 PB2 8 PB1 9 PB0 10 VSS 11

13、 (TMR)/INT 12 PC0 13 PC1 14 PC2 15 PC3 16 PC4 17 PC5 18 RES 19 VDD 20 OSC1 21 OSC2 22 PA7 23 PA6 24 PA5 25 PA4 26 PB7 27 PB6 28 IC603 HT48R30A-1 L028SWDIP-28 IC603-11IC Skt 28PIN 0.3IN - This part is RoSH compliant.8S028NSocket for IC603; NF on A28 DC OFFSET DETECTION R634 100K 0W125 0805 R635 100K

14、0W125 0805 R636 100K 0W125 0805 TR608 FMMT497 SOT-23 TR605 FMMT597 SOT-23 TR604 FMMT597 SOT-23 0V(D) -45V_L +45V_R C623 10UF 63V NONP C624 10UF 63V NONP DZ602 BZX84C 4V7 SOT-23 R650 22K 0W125 0805 Q612 Q613 Q632 Q631 D601 BAV99 SOT-23 D602 BAV99 SOT-23 P625 P627 P626 P623 P624 0V(D) 0V(D) R651 22K 0

15、W125 0805 R649 3K3 0W125 0805 R666 220K 0W125 0805 R664 220K 0W125 0805 DZ605 BZX84C 4V7 SOT-23 DZ606 BZX84C 4V7 SOT-23 R667 68R 0W125 0805 R668 68R 0W125 0805 P642 P644 PK12/09/2007 R669 added to improve DC offset detect 1.007_E156 R669 4K7 0W125 0805 P648 C600 10N 100V 0805 C616 10N 100V 0805 C617

16、 10N 100V 0805 C600,616,617 changed to flexi type PK28/11/07None to this sheet2.007_E226 ITEM6011Ferrite Plate 8x8x2mmF310On top of IC602 MJT25/03/08ITEM601 added2.108_E069 NC 49 NC 50 P14/IRQ0 51 P15/IRQ1 52 P16/IRQ2 53 P17/IRO3/TRGV 54 PB4/AN4 55 PB5/AN5 56 PB6/AN6 57 PB7/AN7 58 PB3/AN3 59 PB2/AN2

17、 60 PB1/AN1 61 PB0/AN0 62 NC 63 NC 64 NC 33 NC 34 NMI 35 P80/FTCI 36 P81/FTIOA 37 P82/FTIOB 38 P83/FTIOC 39 P84/FTIOD 40 P85 41 P86 42 P87 43 P20/SCK3 44 P21/RXD 45 P22/TXD 46 NC 47 NC 48 P56/SDA 26 P57/SCL 27 P74/TMRIV 28 P75/TMCIV 29 P76/TMOV 30 TEST 8 NC 17 NC 31 NC 18 NC 32 P52/WKP2 19 P53/WKP3

18、20 P54/WKP4 21 P55/WKP5/ADTRG 22 Vss 9 P10/TMOW 23 P11 24 OSC2 10 NC 1 NC 2 AVcc 3 X2 4 X1 5 Vcl 6 RES 7 OSC1 11 Vcc 12 P50/WKP0 13 P51/WKP1 14 NC 15 NC 16 P12 25 IC602 HD64F3664FP L991SW LQFP-64 MJT07/04/08None to this sheet2.208_E076 MN25/04/08No changes to this sheet2.308_E088 RadioFans.CN ISSUE

19、DRAWING NO. DRAWING TITLE DATE Filename: ECO No.DESCRIPTION OF CHANGE L991CT3_2.2.SCH A28/P28 PreAmp Contact Engineer: L991C3 25-Apr-2008 INITIALS Printed:38Sheetof Notes: Contact Tel:(01223) 203 200Andrew Dutton A & R Cambridge Ltd. Pembroke Avenue Cambridge CB5 9PB Waterbeach 23425 0V(SIG) 0V(SIG)

20、 0V(SIG) 0V(SIG) +15V(A) -15V(A) +15V(A) -15V(A) 0V(SIG) 0V(SIG) 0V(SIG) +15V(A) -15V(A) 0V(SIG) +15V(A) -15V(A) -15V(A) -15V(A) LINE OUTPUT AUX2 L CD L TUNER L AV L DVD L TAPE IN L AUX L PHONO L AUX2 R CD R TUNER R AV R DVD R TAPE IN R AUX R PHONO R LISTEN_0_PRE LISTEN_1_PRE LISTEN_2_PRE LISTEN_0_P

21、RE LISTEN_1_PRE LISTEN_2_PRE +15V(A) +15V(A) 0V(SIG) 0V(SIG) 0V(SIG) *PRE_MUTE_PRE +15V(A) -15V(A) D311 BAV99 SOT-23 D312 BAV99 SOT-23 D318 BAV99SOT-23 D319 BAV99SOT-23 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 IC303 DG408DY SO-16 C331 470P 100V FKP2 C332

22、 470P 100V FKP2 C333 470P 100V FKP2 C330 470P 100V FKP2 +15V(A) 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 IC302 DG408DY SO-16 R308 1K0 0W125 0805 R314 1K0 0W125 0805 R315 1K0 0W125 0805 R312 1K0 0W125 0805 R329 100K 0W125 0805 R326 100K 0W125 0805 R327 10

23、0K 0W125 0805 R328 100K 0W125 0805 -15V(A) +15V(A) C338 1N0 100V 0805 6 5 7 IC305B TL072CD SO-8 2 3 1 84 IC305A TL072CD SO-8 -15V(A) 0V(SIG) C344 100N 50V 0805 C345 100N 50V 0805 C348 100N 50V 0805 C349 100N 50V 0805 C390 100UF 25V YK R336 47R 0W125 0805 R337 47R 0W125 0805 0V(SIG_2) C352 100N 50V 0

24、805 RLY300A NEC EB2-5NU RLY300B NEC EB2-5NU RLY300C NEC EB2-5NU C353 100P 100V FKP2 C359 4N7 100V FKP2 C357 22UF 50V CFNE 0V(SIG) C373 10UF 50V YK R345 820R 0W125 0805 R349 680K 0W125 0805 R339 47K 0W125 0805 +15V(A) -15V(A) 0V(SIG) C354 100P 100V FKP2 C358 22UF 50V CFNE 0V(SIG) R348 820R 0W125 0805

25、 R350 680K 0W125 0805 R340 47K 0W125 0805 D316 BAV99 SOT-23 -15V(A) +15V(A) D317 BAV99 SOT-23 -15V(A) +15V(A) 0V(SIG) 0V(SIG) 0V(SIG) 0V(SIG) +15V(A) -15V(A) +15V(A) -15V(A) 0V(SIG) 0V(SIG) D314 BAV99SOT-23 D315 BAV99SOT-23 SCRN REAR PANEL VIEW SKT303 KYOYAKU GOLD C325 470P 100V FKP2 C328 470P 100V

26、FKP2 C329 470P 100V FKP2 C327 470P 100V FKP2 R304 1K0 0W125 0805 R310 1K0 0W125 0805 R311 1K0 0W125 0805 R309 1K0 0W125 0805 R325 100K 0W125 0805 R323 100K 0W125 0805 R321 100K 0W125 0805 R324 100K 0W125 0805 C337 1N0 100V 0805 D313 BAV99 SOT-23 -15V(A) +15V(A) D308 BAV99 SOT-23 -15V(A) +15V(A) 0V(S

27、IG) 0V(SIG) 0V(SIG) 0V(SIG) +15V(A) -15V(A) +15V(A) -15V(A) 0V(SIG) 0V(SIG) D309 BAV99SOT-23 D310 BAV99SOT-23 SCRN REAR PANEL VIEW SKT302 KYOYAKU GOLD C321 470P 100V FKP2 C323 470P 100V FKP2 C326 470P 100V FKP2 C324 470P 100V FKP2 R300 1K0 0W125 0805 R301 1K0 0W125 0805 R306 1K0 0W125 0805 R305 1K0

28、0W125 0805 R322 100K 0W125 0805 R320 100K 0W125 0805 R316 100K 0W125 0805 R319 100K 0W125 0805 C336 1N0 100V 0805 D307 BAV99 SOT-23 -15V(A) +15V(A) D301 BAV99 SOT-23 -15V(A) +15V(A) +15V(A) -15V(A) 0V(SIG) SCRN REAR PANEL VIEW SKT301 KYOYAKU GOLD 0V(SIG) C335 1N0 100V 0805 +15V(A) -15V(A) INPUT BUS

29、0V(SIG) SCRN REAR PANEL VIEW SKT300 KYOYAKU GOLD C320 470P 100V FKP2 C322 470P 100V FKP2 TUNER INPUT CD INPUT R302 1K0 0W125 0805 DVD INPUT R303 1K0 0W125 0805 AV INPUT R317 100K 0W125 0805 AUX INPUT R318 100K 0W125 0805 PHONO/ C334 1N0 100V 0805 PHONO L CD L TUNER L AV L DVD L AUX L PHO R D300 BAV9

30、9 SOT-23 CD R -15V(A) TUNER R +15V(A) AV R DVD R AUX R 1 2 3 CON306 HARWIN M20-973 1 2 3 CON307 HARWIN M20-973 ITEM3000Con Jumper Socket 0.1IN Gold Blue - This part is RoHS compliant.8K004 AUX2 L AUX2 R C342 100N 50V0805 C343 100N 50V 0805 0V(SIG) -15V(A) +15V(A) TAPE INPUT -15V(A) +15V(A) -15V(A) +

31、15V(A) C308 10N 100V 0805 C306 10N 100V 0805 C317 10N 100V 0805 TAPE OUTPUT C314 10N 100V 0805 C312 10N 100V 0805 C313 10N 100V 0805 PHONO AND ENABLE AUX2 PHO R PHO L TAPE IN L TAPE IN R PHO L PHONO R C350 100N 50V 0805 C351 100N 50V 0805 6 5 7 IC307B NJM2114M DMP-8 6 5 7 IC308B NJM2114M DMP-8 A28 P

32、reAmp Out /A28 Line Out / C361 1N0 100V FKP2 C363 330P 100V FKP2 C374 10UF 50V YK 0V(SIG) 1 2 CON300 HARWIN M20-973 1 2 CON301 HARWIN M20-973 FIT JUMPERS C380 22P 100V 0805 C378 22P 100V 0805 VOL_SCLK_PRE VOL_SDATA_PRE PHONO PREAMP VOLUME CONTROL 0V(SIG) +15V(A) -15V(A) D302 BAV99SOT-23 R372 22K 0W1

33、25 0805 R362 22K 0W125 0805 0V(SIG) 0V(SIG) -15V(A) +15V(A) C300 10N 100V 0805 C301 10N 100V 0805 0V(SIG) 1 2 CON303 HARWIN M20-973 1 2 CON302 HARWIN M20-973 PRE_OUT_L PRE_OUT_R *PRE_MUTE_PRE SCRN REAR PANEL VIEW SKT304 KYOYAKU GOLD D305 BAV99 SOT-23 D306 BAV99 SOT-230V(SIG) -15V(A) 0V(SIG) +15V(A)

34、-15V(A) TAPE OUTPUT D303 BAV99 SOT-23 D304 BAV99 SOT-23 TOP_L TOP_R 6 5 7 IC304B TL072CD SO-8 2 3 1 84 IC304A TL072CD SO-8 -15V(A) C340 100N 50V 0805 C341 100N 50V 0805 +15V(A) 0V(SIG) +15V(A) +15V(A) -15V(A) 0V(SIG) P28 PowerAmp InP28 Pre Out LoopTAPE OUTPUT SELECT TOP_L TOP_R *PRE_MUTE R381 10K 0W

35、125 0805 R382 10K 0W125 0805 C377 22P 100V 0805 C376 22P 100V 0805 C379 22P 100V 0805 C381 22P 100V 0805 R33547R 0W125 0805 R33347R 0W125 0805 R33247R 0W125 0805 R33447R 0W125 0805 1 2 3 CON304 HARWIN M20-973 1 2 3 CON305 HARWIN M20-973 2 3 1 84 IC306A NJM2114M DMP-8 6 5 7 IC306B NJM2114M DMP-8 +5V(

36、A) +5V(A) +5V(A) +5V(A) 0V(SIG)0V(SIG)0V(SIG_2) 0V(SIG) +15V(A) -15V(A) C346 100N 50V 0805 C347 100N 50V 0805 2 3 1 84 IC307A NJM2114M DMP-8 2 3 1 84 IC308A NJM2114M DMP-8 0V(SIG_2) -15V(A) C367 220UF 16V YK 0V(SIG) R383 10K 0W125 0805 R384 10K 0W125 0805 0V(SIG) 0V_D_PRE 0V(SIG) 0V_SER_PRE CONNECT

37、PINS 2-3 FOR PRE/PWR CUT TRACK BETWEEN D320 BAS16 SOT-323 0V(SIG) 0V(SIG) R342 100K 0W125 0805 0V(SIG) -15V(A) C370 220UF 16V YK R344 100K 0W125 0805 0V(SIG) -15V(A) C372 220UF 16V YK -15V(A) C369 220UF 16V YK 0V(SIG_2) 0V(SIG) 0V(SIG) R36322K 0W125 0805 R36722K 0W125 0805R36422K 0W125 0805 R36822K

38、0W125 0805R36522K 0W125 0805 R36922K 0W125 0805R36622K 0W125 0805 R37022K 0W125 0805 0V(SIG) 0V_PREOUT R307 1K0 0W125 0805 R351 22K 0W125 0805 R373 33K 0W125 0805 C360 4N7 100V FKP2 C362 1N0 100V FKP2 C364 330P 100V FKP2 R313 1K0 0W125 0805 R360 22K 0W125 0805 R374 33K 0W125 0805 Q328 Q337 Q320 AUX2

39、 INPUT 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 IC300 DG408DY SO-16 AUX2 L CD L TUNER L AV L DVD L AUX L PHONO L -15V(A) +15V(A) +5V(A) 0V(SIG) 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 IC301 DG408DY SO-16 AUX

40、2 R CD R TUNER R AV R DVD R AUX R PHONO R +5V(A) 0V(SIG) TAPE_1_PRE TAPE_2_PRE TAPE_0_PRETAPE_0_PRE TAPE_1_PRE TAPE_2_PRE R331 1M0 0W125 0805 R330 1M0 0W125 0805 ONLY ON P28 -15V(A) +15V(A) C304 10N 100V 0805 C305 10N 100V 0805 0V(SIG) 0V(SIG) 0V(SIG) -15V(A) +15V(A) C309 10N 100V 0805 C307 10N 100V

41、 0805 0V(SIG) -15V(A) +15V(A) C316 10N 100V 0805 C315 10N 100V 0805 0V(SIG) -15V(A) +15V(A) C303 10N 100V 0805 C302 10N 100V 0805 0V(SIG) R390 3K3 0W125 0805 C371 220UF 16V YK R391 3K3 0W125 0805 -15V(A) R35222K 0W125 0805 R35622K 0W125 0805R35322K 0W125 0805 R35722K 0W125 0805R35422K 0W125 0805 R35

42、822K 0W125 0805R35522K 0W125 0805 R35922K 0W125 0805 R386 3K3 0W125 0805 C368 220UF 16V YK R389 3K3 0W125 0805 -15V(A) R379 10K 0W125 0805 R380 10K 0W125 0805 R392 3K3 0W125 0805 R387 3K3 0W125 0805 R397 10K 0W125 0805 R395 10K 0W125 0805 R396 4K7 0W125 0805 R394 4K7 0W125 0805 LISTEN_2 LISTEN_1 LIS

43、TEN_0 VOL_SDATA VOL_SCLK VOL_SCLK_PRE VOL_SDATA_PRE LISTEN_0_PRE LISTEN_1_PRE LISTEN_2_PRE FROM SHEET 6 -15V(A) +15V(A) C310 10N 100V 0805 C311 10N 100V 0805 0V(SIG) -15V(A) +15V(A) C318 10N 100V 0805 C319 10N 100V 0805 0V(SIG) -15V(A) +15V(A) +5V(A) +15V(A) +5V(A) -15V(A) TAPE_2 0V(SIG) 0V(SIG) 0V_

44、SER_PRE 0V_SER TAPE_1 TAPE_0 TAPE_0_PRE TAPE_1_PRE TAPE_2_PRE TR300 BC849B SOT-23 R385 3K3 0W125 0805 C339 1N0 100V 0805 R398 0R0 0W125 0805 0V(SIG) C366 220UF 16V YK -15V(A) C365 220UF 16V YK -15V(A) R375 2K2 0W125 0805 R376 2K2 0W125 0805 R377 2K2 0W125 0805 R378 2K2 0W125 0805 +4.8V_D_PRE (Sheet

45、7) SP300 ANNOTATION C355 47P 100V 0805 C356 47P 100V 0805 P320 P334 P335 P337 P336 P338 P339 P340 P341 P319 P332 P331 P330 P329 P328 P327 P326 P325 P343 P344 P349 P350 P351 P355P354 P358 P360 P352 P363 FIT ON P80 FIT ON P80 FIT ON P80 FIT ON P80 FIT ON P80 *PRE_RLY NF VOL_*CS VOL_*CS_PRE VOL_*CS_PRE

46、 R338 10R 0W125 0805 0V(SIG) 0V(SIG_2) 0V(SIG_2) VINL VINR VOUTL VOUTR P300 P302 P301 P303 P304 P305 Not Fitted on A28 R399 22K 0W125 0805 C375 100UF 25V ZA C383 100UF 25V ZA NF A28 ITEM3021Kapton Tape 12MM WideF223 5x12mm required = 0.06m PK12/09/2007 IC309 replaced with PGA2320 device 1.007_E156 V

47、OUTR 11 DGND 5 AGNDR 10 VINR 9 SDO 7 AGNDL 15 VD+ 4 VA+ 12 VOUTL 14 SDI 3 ZCEN 1 CS 2 SCLK 6 MUTE 8 VINL 16 VA- 13 IC309 PGA2320IDWR SO-16W Track out LK302-307 to default (A28) setting NF NF NF NF NF NF CON302/3 PINS FOR P38 CUT TRACK BETWEEN PINS 1&2 CUT TRACK BETWEEN PINS 1&2 AND CONNECT 2&3 TO DI

48、SABLE PK28/11/07 NF R375-378, C365,366. R346,347 now 1k, R388,393 now 1k3 2.007_E226 R346 1K0 0W125 0805 R347 1K0 0W125 0805 R393 1K3 0W125 0805 R388 1K3 0W125 0805 R36147K 0W125 0805 R37147K 0W125 0805 R341 470K 0W125 0805 R343 470K 0W125 0805 NF NF NF NF NF NF R361,371 now 47k. R341,343 now 470k C

49、386 100UF 10V YXF C388 100UF 10V YXF C389 100UF 10V YXF C387 100UF 10V YXF C384 47UF 35V RX C385 47UF 35V RX ITEM3031Ferrite Plate 8x8x2mmF310On top of IC309 ITEM3041Pad Damping 7.5x6x3MM RubberE828APOn top of ITEM303, which is on top of IC309 (double stack) MJT25/03/08 ITEM303, ITEM304 added. ITEM301 removed. 2.108_E069 C386, C387, C388, C389, C384, C385 changed. Under phono EMC connection on PCB to stop short to vias (SKT300-SKT304). (See ECO: 05_E074 for info) Hand mod quantity in BoM! 2.2MJT07/04/0808_E076Removed handbag link ITEM300 MN25/04/08No changes to this sheet2.308