Primare-SPA21-spa-sm 电路图 维修手册.pdf

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1、 PRIMARE SPA 21 Surround Processing Amplifier Service Manual RadioFans.CN 收音机爱 好者资料库 1. Circuit Diagrams 2. Bias Adjustment 3. Technical Specifications Confidential ! This document is not allowed to show for third part without written permission from Primare Systems AB. This document is subject to c

2、hange without notice. Author: Bjorn Holmqvist Primare Systems AB RadioFans.CN 收音机爱 好者资料库 12345678 A B C D 87654321 D C B A Title NumberRevisionSize A3 Date:22-Jul-2004Sheet of File:C:WORK.EM1136-9.SCHDrawn By: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 JP1 26PIN +5VDISPLAY/

3、REL P1.0/T2 2 P1.1/T2EX 3 NIC* 12 P1.2/ECI 4 P3.1/TxD 13 P1.3/CEX0 5 P3.2/INT0 14 P1.4/CEX1 6 P3.3/INT1 15 P1.5/CEX3 7 P3.4/TO/CEX3 16 P1.6/SCL 8 P3.5/T1/CEX4 17 P1.7/SDA 9 P3.6/WR 18 RST 10 P3.7/RD 19 P3.0/RxD 11 Vss 22 XTAL2 20 NIC* 1 XTAL1 21 Vcc 44 P0.0/AD0 43 P0.1/AD1 42 P0.2/AD2 41 P0.3/AD3 40

4、 P0.4/AD4 39 P0.5/AD5 38 P0.6/AD6 37 P0.7/AD7 36 EA/Vpp 35 NIC* 34 ALE 33 PSEN 32 P2.7/A15 31 P2.6/A14 30 P2.5/A13 29 P2.4/A12 28 P2.3/A11 27 P2.2/A10 26 P2.1/A9 25 P2.0/A8 24 NIC* 23 U2 89C660 X2 20MHz C6 10p C8 22p C11 22UF/35V R9 10K R10 100R D0 3 Q0 2 D1 4 Q1 5 D2 7 Q2 6 D3 8 Q3 9 D4 13 Q4 12 D5

5、 14 Q5 15 D6 17 Q6 16 D7 18 Q7 19 OE 1 LE 11 U4 74HC373 D0 3 Q0 2 D1 4 Q1 5 D2 7 Q2 6 D3 8 Q3 9 D4 13 Q4 12 D5 14 Q5 15 D6 17 Q6 16 D7 18 Q7 19 OE 1 LE 11 U5 74HC373 S-VIDEO/COMPODITE MIXED/FULL PAGE MODE MOSI MOSO SS SCK SRS +12V-LINK2 IR2 RS232 PIN9 MAX202 RS232 PIN10 MAX202 VIDEO SW COMPONENT SCL

6、 SDA 14.318+17.734MHZ CSYNC MUTE DATA CLK SCN R34 10R C12 10u 16V R35 10K B 1 COM 2 A 3 SW4 ENCODE-EC16 VOLUME 1 2 3 4 SW5 1 2 3 4 SW6 1 2 3 4 SW7 MENUSELECT LEVEL X4 18.432MHZ C7 10p C9 22p +5VDISPLAY/REL 1 2 3 4 SW12 STANDBY 1 2 3 F2 FILTER C35 100U/6.3V C31 100N +5VDISPLAY/REL +5VDISPLAY/REL +5VD

7、ISPLAY/REL +5VDISPLAY/REL R15 10K R16 10K R18 10K R19 10K R20 10K +5VDISPLAY/REL R47 3K3 R48 3K3 +5VDISPLAY/RELVCC TEMPERATURE SW C2 100N C1 100N R1 10R C3 100N D4 PMLL4148 D5 PMLL4148 1A1 2 1A2 4 1A3 6 1A4 8 2A1 11 2A2 13 2A3 15 2A4 17 1Y1 18 1Y2 16 1Y3 14 1Y4 12 2Y1 9 2Y2 7 2Y3 5 2Y4 3 1G 1 2G 19

8、U1 74HC241 C4 100N R4 NC R5 4K7 R22 100R R23 100R R24 100R R25 100R R26 100R R27 100R R210K R310K R610K R710K R810K R1310K R14 10K R17 10K VCC 2 VOUT 1 GND 3 IR1 IR-RECEIVER HREQ SELECTOR R28 10K R29 10K R30 100R R31 100R INPUT SELECTOR 1 11 2 12 3 13 4 1 5 2 6 3 7 4 8 5 9 10 A 9 B 7 C 6 D 14 U3 74H

9、CLS147D VCC R32 4K7 R33 4K7 R49 4K7 C5 100N C10 100N C14 100N R50 100R C15 100N SW1 R51LUS R52 LUS R53 LUS R54 LUS +5VDISPLAY/REL C16 100n R55 LUS R56 LUS R57 LUS P0.0 1 P0.1 20 P0.2 19 P0.3 18 P0.4 17 P0.5 16 VDD 15 P0.6 14 P0.7 13 P1.7 2 P1.6 3 P1.5/RST 4 VSS 5 XTAL1 6 XTAL2 7 P1.4/INT1 8 P1.3/INT

10、0 9 P1.2 10 P1.0/TXD 12 P1.1/RXD 11 U687LPC764 1 2 JP2 HEADER 2 FAN R58 680R +5VDISPLAY/REL R59 220R C17 100N R60 10K C18 100N C13 100U/6.3V VCC VCC 1 SIN 2 GND 3 SBUSY 4 SCK 5 RESET 6 DISPLAY1 GU140X16G D1 LED R11 1K33 STANDBY LED C19 100U/6.3V C20 100U/6.3V R12 10k R21 10k R36 10k R37 10k RadioFan

11、s.CN 收音机爱 好者资料库 12345678 A B C D 87654321 D C B A Title NumberRevisionSize A2 Date:22-Jul-2004Sheet of File:C:WORK.E1132-11.SCHDrawn By: 3 2 1 84 U1A OPA2134 5 6 7 U1B OPA2134 -15V R1 100R R2 100R R9 47K R10 47K R11 1K R12 1K L R J1 R192K05 R25 511R -15V +15V R31 10R R50 1K R51 1K C13 560P R13 1K R6

12、2 49.9R R20 2K05 R26 511R -15V R32 10R R52 1K R53 1K C14 560P R14 1K R63 49.9R L R J2 S1B SW SPDT S1A SW SPDT +15V ZCEN 1 CS 2 SDATAI 3 DGND 5 SCLK 6 SDATAO 7 MUTE 8 AINR 9 AGNDR 10 AOUTR 11 VA+ 12 VA- 13 AOUTL 14 AGNDL 15 AINL 16 VD+ 4 U8 PGA2311U C19 100N -5V-VOLUME +5V-VOLUME C20 100N C45 10U R68

13、 10R +5V-VOLUME R33 10K R34 10K R71 4K7 R72 4K7 L R J3 S2C R212K05 R27 511R -15V +15V R35 10R R54 1K R55 1K C15 560P R15 1K R222K05 R28 511R -15V R36 10R R56 1K R57 1K C16 560P R16 1K S3C +15V ZCEN 1 CS 2 SDATAI 3 DGND 5 SCLK 6 SDATAO 7 MUTE 8 AINR 9 AGNDR 10 AOUTR 11 VA+ 12 VA- 13 AOUTL 14 AGNDL 15

14、 AINL 16 VD+ 4 U9 PGA2311U C21 100N -5V-VOLUME +5V-VOLUME R232K05 R29 511R -15V +15V R37 10R R58 1K R591K C17 560P R17 1K R242K05 R30 511R -15V C18 560P R18 1K +15V ZCEN 1 CS 2 SDATAI 3 DGND 5 SCLK 6 SDATAO 7 MUTE 8 AINR 9 AGNDR 10 AOUTR 11 VA+ 12 VA- 13 AOUTL 14 AGNDL 15 AINL 16 VD+ 4 U10 PGA2311U

15、-5V-VOLUME +5V-VOLUME D5 4148 Q1 BCV46 R81 470R R39 10K R40 10K R41 10K R42 10K R43 10K +5VD R44 10K R45 10K REC 1 OUT FRONT 4 IN C23 100N +15VC25 100N C26 100N C27 100N +15VC30 100N C31 100N C32 100N C34 100N -15V C37 100N C38 100N C39 100N +5V-VOLUME C40 100N C41 100N C42 100N -5V-VOLUME EM1132-2

16、C43 100N C46 10U R69 10R +5V-VOLUME R46 10K R47 10K R73 4K7 R74 4K7 C44 100N C47 10U R70 10R +5V-VOLUME R48 10K R49 10K R75 4K7 R76 4K7 CENTER IN SURR SUB IN SURR L SURR IN R SURR IN L POWER FRONT R POWER FRONT R64 49.9R R65 49.9R L R J4 2 3 1 S2B SW SPDT 7 6 8 S2A SW SPDT OUT SURR L POWER REAR R PO

17、WER REAR R66 49.9R R67 10R L R J5 2 3 1 S3B SW SPDT 7 6 8 S3A SW SPDT OUT CENTER CENTER POWER OUT SUB A0 1 EN 2 V- 3 N2A 5 N3A 6 N4A 7 COMA 8 COMB 9 N4B 10 N3B 11 N2B 12 N1B 13 V+ 14 GND 15 A1 16 N1A 4 U16 DG409DY L R J6 5 IN L R J7 3 IN L R J8 2 IN +15V-15V L R J9 EX2 A0 1 EN 2 V- 3 N2A 5 N3A 6 N4A

18、 7 COMA 8 COMB 9 N4B 10 N3B 11 N2B 12 N1B 13 V+ 14 GND 15 A1 16 N1A 4 U17DG409DY L R J10 EX3 L R J11 EX1 L R J12 1 IN +15V-15V S4A SW SPDT S4B SW SPDT 45S4C L FRONT IN SURROUND R FRONT IN SURROUND R82 470R Q3 BCV46 +5VD BYPASS MUTE STANDBY SDA SCL FROM PROCESSOR BOARD R TO PROCESSOR L TO PROCESSOR 3

19、 2 1 84 U2A OPA2134 5 6 7 U2B OPA2134 3 2 1 84 U3A OPA2134 5 6 7 U3BOPA2134 3 2 1 84 U4A OPA2134 5 6 7 U4B OPA2134 3 2 1 84 U5A OPA2134 5 6 7 U5B OPA2134 3 2 1 84 U6A OPA2134 5 6 7 U6BOPA2134 3 2 1 84 U7A OPA2134 5 6 7 U7B OPA2134 S1C SW SPDT R83 470R Q4 BCV46 +5VD D6 4148 D7 4148 +5VD SW-FRONT/SURR

20、 BACK DGND FRONT SURR CENTER SUB 7 6 8 S5A SW SPDT 2 3 1 S5B SW SPDT S5C SW SPDT L FRONT DIRECT R FRONT DIRECT R SURR DIRECT L SURR DIRECT CENTER DIRECT SUB DIRECT R88 470R Q5 BCV46 D8 4148 +5VD FRONT DIRECT BYPASS BYPASS R872K05 R90 511R -15V +15V R93 10R R97 1K R98 1K C72 560P R85 1K R101 49.9R R8

21、9 2K05 R91 511R -15V R94 10R R99 1K R100 1K C73 560P R86 1K R102 49.9R L R J13 S6A SW SPDT S6B SW SPDT +15V ZCEN 1 CS 2 SDATAI 3 DGND 5 SCLK 6 SDATAO 7 MUTE 8 AINR 9 AGNDR 10 AOUTR 11 VA+ 12 VA- 13 AOUTL 14 AGNDL 15 AINL 16 VD+ 4 U19 PGA2311U C74 100N -5V-VOLUME +5V-VOLUME C75 100N C77 10U R103 10R

22、+5V-VOLUME R95 10K R96 10K R104 4K7 R105 4K7 OUT SURR BACK 1 3 2 1 84 U13A OPA2134 5 6 7 U13B OPA2134 3 2 1 84 U18A OPA2134 5 6 7 U18B OPA2134 SURR BACK 1 IN SURR BACK 2 IN SURR BACK 1 DIRECT SURR BACK 2 DIRECT L R J14 OUT SURR BACK 2 S6C 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 J15 CON20

23、7 6 8 S7A SW SPDT 2 3 1 S7B SW SPDT 45S7C SW SPDT 45S8C SW SPDT 7 6 8 S8A SW SPDT 2 3 1 S8B SW SPDT S9A SW SPDT 2 3 1 S9B SW SPDT S9C SW SPDT R TO PROCESSOR L TO PROCESSOR CENTER IN SURR SUB IN SURR L SURR IN R SURR IN L FRONT IN SURROUND R FRONT IN SURROUND SURR BACK 1 IN SURR BACK 2 IN C66 100N C6

24、7 100N +15V C76 100N C78 100N C79 100N C80 100N C81 100N +15VC82 100N C83 100N C84 100N C85 100N C86 100N -15VC87 100N C88 100N -15V C89 100N C90 100N 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 JP1 HEADER 16 L POWER FRONT R POWER FRONT L POWER REAR R POWER REAR CENTER POWER BIAS-STANDBY FRONT STANDBY RE

25、AR-CEN-SUB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 JP2 HEADER 20 +15V -15V +5V -5V +12V +5VDISPLAY/REL +5VD STANDBY REAR-CEN-SUB BIAS-STANDBY FRONT 12V-LINK1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 JP3 HEADER 16 +12V 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 JP4 HEADER 16 SCN CLK DATA MUTE CS

26、YNC 14.318+17.734MHZ SDA SCL VIDEO SW COMPONENT +5V -5V +15V -15V +5VD MOSI MOSO SS SCK SRS TO SURROUND PCB TO VIDEO PCB TO SORROUND PCB TO POWER AMP PCB TO POWER AMP PCB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 JP5 26PIN +5VDISPLAY/REL SCN CLK DATA MUTE CSYNC 14.318+17.7

27、34MHZ SDA SCL VIDEO SW COMPONENT RS232 PIN10 MAX202 RS232 PIN9 MAX202 12V-LINK2 MOSI MOSO SS SCK SRS TO DISPLAY PCB NC 1 LX 2 SX 3 NC 5 SY 6 LY 7 VCC 8 GND 4 U11 82B715 A0 1 A1 2 A2 3 SDA 5 SCL 6 NC 7 VCC 8 VSS 4 U12 24C16 C22 100N C24 100N C28 100U/6.3V R3 1K R5 10R R4 1K R6 10R 1 2 3 F1 NMF40 1 2

28、3 F2 NMF40 1 2 3 4 5 6 JP6 HEADER 6 IIC MIXED/FULL PAGE MODE MIXED/FULL PAGE MODE S-VIDEO/COMPOSITE S-VIDEO/COMPOSITE SDA SCL +15V D1 PMLL4148 +5VD TEMPERATURE SW TEMPERATURE SW 1 2 3 JP7 HEADER 2 +5VD C1+ 1 V+ 2 C1- 3 C2+ 4 C2- 5 V- 6 T2OUT 7 R2IN 8 R1IN 13 R1OUT 12 R2OUT 9 VCC 16 GND 15 T1OUT 14 T

29、2IN 10 T1IN 11 U20 MAX202 1 2 3 4 P1 HEADER 4 1 2 3 F3 NMF40 1 2 3 F4 NMF40 R79 TBD R80 TBD C29 100N C33 100N C35 100N C36 100N C48 100N +5VD RS232 PIN10 MAX202 RS232 PIN9 MAX202 RS232 R84 10R R92 10R C49 100N C50 100N 12V-LINK2 5 2 1 3 JP8 3.5MM-JACK IR-2R106 100R R107 10R C51 10U/16v +15V 12V-LINK

30、1 C52 100N HREQ C53 470U/10V C54 470U/10V R7 10K R8 10K R77 10K R78 10K R108 10K R110 10K HREQ SURR BACK R111 10R R112 10R +5V-VOLUME -5V-VOLUME 1 1 2 2 3 3 JP9 OUT 1 GND 2 GND 3 NC 4 IN 8 GND 7 GND 6 NC 5 U21LM78SMD C57 10U/16v C58 10U/16v R113 10K R114 10K C55 100U/16V C56 100U/16V R115 10R R11610

31、R C60 10U/16VR117 NC C59 100N R118 22R R119 22R S10A SW SPDT S10B SW SPDT S10C SW SPDT R120 10K R121 10K A0 6 A1 7 A2 9 P1 11 P2 12 P3 14 VSS 15 P4 16 P5 17 P6 19 P7 20 INT 1 SCL 2 SDA 4 VDD 5 P0 10 U14 PCF8574-SSOP A0 6 A1 7 A2 9 P1 11 P2 12 P3 14 VSS 15 P4 16 P5 17 P6 19 P7 20 INT 1 SCL 2 SDA 4 VD

32、D 5 P0 10 U15 PCF8574-SSOP C61 100N R109 5K6 R122 5K6 R128 0R R129 0R C115U/16V OS-CON AUDIO C215U/16V OS-CON AUDIO R130 0R R131 0R C3 15U/16V OS-CON AUDIO C4 15U/16V OS-CON AUDIO R132 0R C5 15U/16V OS-CON AUDIO C6 15U/16V OS-CON AUDIO R133 0R R134 0R C7 15U/16V OS-CON AUDIOC8 15U/16V OS-CON AUDIO R

33、38 10R R60 10R R61 10R R123 10R R124 10R R125 10R R126 10R R127 10R 12345678 A B C D 87654321 D C B A Title NumberRevisionSize A3 Date:10-Dec-2004Sheet of File:C:WORK.EM1134A.SCHDrawn By: Q1 2SC2240 Q5 2SA970 Q7 BD677A Q8 2SC4793 Q10 2SA1837 R1 1K Q11 2SA1943 Q13 2SC5200 R2 33K R3 10K R6 110R R7 470

34、R D1 1N4148 D2 1N4148 C1 0.1U R12 5K6 R13 5K6 R14 5K6 R15 3K3 Q6 2SA970 R4 18K R5 18K C10 NC Q2 2SC2240 Q3 2SC2240 Q4 2SC2240 R16 133R R17 2K2 R8 470R R19 1K1 R20 22K C11 18P D3 1N4148 D4 1N4148 C2 0.1U R9 470R R22 220R R23 100R R10 470R R25 4K7 R26 4K7 R27 4K7 R29 470K A 1 K 2 C 4 E 3 Q17 OPTOISO1

35、1 2 3 Q18 BS107 R24 280R R30 680R R28 4K7 R18 1K1 D5 0R C3 NC Q9 2SC4793 R31 75R R32 75R C4 0.1U C12 220U/16V R37 470R R38 470R R39 0.22R R40 0.22R R43 22R R44 22R R45 22R R46 22R Q12 2SA1943 Q14 2SC5200 R41 0.22R R42 0.22R R47 22R R48 22R R49 22R R50 22R S1 FUSE1 S2 FUSE1 C5 0.1U C6 0.1U R21 22K R5

36、1 1K C7 0.1U C13 1U R52 1M +15V_AN -15V_AN +POWER -POWER C8 0.1U C14 0.1V C15 100U/63V C16 100U/63V R35 4R7 C9 0.1U R11 470R BIAS-STANDBY Q15A 2SK389 Q15B 2SK389 PIN PIN P9 PIN PIN P10 PIN +POWER-REG -POWER-REG RE1A SW SPDT U1 TL071 R POWER FRONT AMP-OUT-FRONT-R R325 1K C93 470P R342 470K R343 100K

37、AMP-OUT-FRONT-R-FUSE R186220K Q103 BSR20 Q108 BSR19 R188220K 1 2 JP9 12345678 A B C D 87654321 D C B A Title NumberRevisionSize A3 Date:10-Dec-2004Sheet of File:C:WORK.EM1134B.SCHDrawn By: Q30 2SC2240 Q40 2SA970 Q45 BD677A Q52 2SC4793 Q57 2SA1837 R56 1K Q64 2SA1943 Q72 2SC5200 R60 33K R70 10K R76 11

38、0R R95 470R D21 1N4148 D22 1N4148 C44 0.1U R110 5K6 R111 5K6 R112 5K6 R116 3K3 Q41 2SA970 R71 18K R72 18K C56 NC Q31 2SC2240 Q32 2SC2240 Q33 2SC2240 R120 133R R127 2K2 R96 470R R132 1K1 R139 22K C60 18P D23 1N4148 D24 1N4148 C45 0.1U R97 470R R144 220R R151 100R R98 470R R165 4K7 R166 4K7 R167 4K7 R

39、172 470K A 1 K 2 C 4 E 3 Q77 OPTOISO1 1 2 3 Q81 BS107 R152 280R R176 680R R168 4K7 R128 1K1 D25 0R C46 NC Q53 2SC4793 R99 75R R192 75R C47 0.1U C64 220U/16V R203 470R R204 470R R217 0.22R R218 0.22R R245 22R R246 22R R247 22R R248 22R Q65 2SA1943 Q73 2SC5200 R219 0.22R R220 0.22R R249 22R R250 22R R

40、251 22R R25222R S9 FUSE1 S10 FUSE1 C48 0.1U C49 0.1U U5 TL071 R140 22K R256 1K C50 0.1U C68 1U R260 1M +15V_AN -15V_AN +POWER -POWER C51 0.1U C72 0.1V C79 100U/63V C80 100U/63V R195 4R7 C52 0.1U R100 470R BIAS-STANDBY Q85A 2SK389 Q85B 2SK389 PIN PIN P7 PIN PIN P8 PIN +POWER-REG -POWER-REG RE1B SW SP

41、DT L POWER FRONT AMP-OUT-FRONT-L C92 470P R324 1K R340 47K R341 47K AMP-OUT-FRONT-L-FUSE R183220K Q102 BSR20 Q107 BSR19 R184220K 1 2 JP8 12345678 A B C D 87654321 D C B A Title NumberRevisionSize A3 Date:10-Dec-2004Sheet of File:C:WORK.EM1134C.SCHDrawn By: Q26 2SC2240 Q38 2SA970 Q44 BD677A Q50 2SC47

42、93 Q56 2SA1837 R55 1K Q62 2SA1943 Q70 2SC5200 R59 33K R67 10K R75 110R R89 470R D16 1N4148 D17 1N4148 C35 0.1U R107 5K6 R108 5K6 R109 5K6 R115 3K3 Q39 2SA970 R68 18K R69 18K C55 NC Q27 2SC2240 Q28 2SC2240 Q29 2SC2240 R119 133R R125 2K2 R90 470R R131 1K1 R137 22K C59 18P D18 1N4148 D19 1N4148 C36 0.1

43、U R91 470R R143 220R R149 100R R92 470R R161 4K7 R162 4K7 R163 4K7 R171 470K A 1 K 2 C 4 E 3 Q76 OPTOISO1 1 2 3 Q80 BS107 R150 280R R175 680R R164 4K7 R126 1K1 D20 0R C37 NC Q51 2SC4793 R93 75R R187 75R C38 0.1U C63 220U/16V R201 470R R202 470R R213 0.22R R214 0.22R R237 22R R238 22R R239 22R R240 2

44、2R Q63 2SA1943 Q71 2SC5200 R215 0.22R R216 0.22R R241 22R R242 22R R243 22R R24422R S7 FUSE1 S8 FUSE1 C39 0.1U C40 0.1U U4 TL071 R138 22K R255 1K C41 0.1U C67 1U R259 1M +15V_AN -15V_AN +POWER -POWER C42 0.1U C71 0.1V C77 100U/63V C78 100U/63V R190 22R C43 0.1U R94 470R BIAS-STANDBY Q84A 2SK389 Q84B

45、 2SK389 PIN PIN P5 PIN PIN P6 PIN +POWER-REG -POWER-REG RE2A SW SPDT AMP-OUT-REAR-R R POWER REAR R323 1K C91 470P R338 47K R339 47K AMP-OUT-REAR-R-FUSE R179220K Q101 BSR20 Q106 BSR19 R181220K 1 2 JP7 12345678 A B C D 87654321 D C B A Title NumberRevisionSize A3 Date:10-Dec-2004Sheet of File:C:WORK.E

46、M1134D.SCHDrawn By: Q22 2SC2240 Q36 2SA970 Q43 BD677A Q48 2SC4793 Q55 2SA1837 R54 1K Q60 2SA1943 Q68 2SC5200 R58 33K R64 10K R74 110R R83 470R D11 1N4148 D12 1N4148 C26 0.1U R104 5K6 R105 5K6 R106 5K6 R114 3K3 Q37 2SA970 R65 18K R66 18K C54 NC Q23 2SC2240 Q24 2SC2240 Q25 2SC2240 R118 133R R123 2K2 R

47、84 470R R130 1K1 R135 22K C58 18P D13 1N4148 D14 1N4148 C27 0.1U R85 470R R142 220R R147 100R R86 470R R157 4K7 R158 4K7 R159 4K7 R170 470K A 1 K 2 C 4 E 3 Q75 OPTOISO1 1 2 3 Q79 BS107 R148 280R R174 680R R160 4K7 R124 1K1 D15 0R C28 NC Q49 2SC4793 R87 75R R182 75R C29 0.1U C62 220U/16V R199 470R R2

48、00 470R R209 0.22R R210 0.22R R229 22R R230 22R R231 22R R232 22R Q61 2SA1943 Q69 2SC5200 R211 0.22R R212 0.22R R233 22R R234 22R R235 22R R23622R S5 FUSE1 S6 FUSE1 C30 0.1U C31 0.1U U3 TL071 R136 22K R254 1K C32 0.1U C66 1U R258 1M +15V_AN -15V_AN +POWER -POWER C33 0.1U C70 0.1V C75 100U/63V C76 10

49、0U/63V R185 4R7 C34 0.1U R88 470R BIAS-STANDBY Q83A 2SK389 Q83B 2SK389 PIN PIN P3 PIN PIN P4 PIN +POWER-REG -POWER-REG RE2B SW SPDT L POWER REAR AMP-OUT-REAR-L C90 470P R322 1K R336 47K R337 47K AMP-OUT-REAR-L-FUSE R36 220K Q100 BSR20 Q105 BSR19 R178220K 1 2 JP6 12345678 A B C D 87654321 D C B A Title NumberRevisionSize A3 Date:10-Dec-2004Sheet of File:C:WORK.EM1134E.SCHDrawn By: Q16 2SC2240 Q34 2SA970 Q42 BD677A Q46 2SC4793 Q54 2SA1837 R53 1K Q58 2SA1943 Q66 2SC5200 R57 33K R61 10K R73 110R R77 470R D6 1N4148 D7 1N4148 C17