Vox_ad15_30servicemanual 电路图 维修原理图.pdf

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1、 S S Se e er r rv vi i ic c ce e e MMMa an nu u ua a al l l van AD15/30VT CONTENTS Circuit Diagram: Page 2-4 Block Diagram: Page 5-6 Parts List: Page: 7-11 2nd Edition Issued date: December 9th 2004 Issued by: KORG INC. 收音机爱好者资料库 Ra d i o Fa n s .CN 12345678 A B C D 87654321 D C B A J1 PHONEJACK STE

2、REO SW 1 2 3 4 8 IC1A UPC4570G2 5 6 7 IC1B UPC4570G2 1 2 3 4 8 IC2A NJM4556M 1 2 3 VR2 10kB(11click) 1 2 3 VR3 10kB(11click) 1 2 3 VR4 10kB 1 2 3 VR5 10kB 1 2 3 VR6 10kB 1 2 3 VR7 10kB 1 2 3 VR8 10kB 1 2 3 VR9 10kB 1 2 3 VR1 10kB GND 1 NC 2 DA13 3 DA12 4 DA11 5 DA10 6 DA9 7 DA8 8 DA7 9 DA6 10 DA5 11

3、 DA4 12 DA3 13 DA2 14 DA1 15 DA0 16 D15 17 D14 18 D13 19 D12 20 D11 21 D10 22 D9 23 D8 24 EVdd 25 GND 26 D7 27 D6 28 D5 29 D4 30 D3 31 D2 32 D1 33 D0 34 IVdd 35 GND 36 SI1 37 SIEN1 38 SCK1 39 SIAK1 40 SO1 41 SORQ1 42 SOEN1 43 SOEN2 44 SO2 45 SCK2 46 SIEN2 47 SI2 48 NC 49 EVdd 50 GND 51 P3 52 P2 53 P

4、1 54 P0 55 HD7 56 HD6 57 HD5 58 HD4 59 HD3 60 HD2 61 HD1 62 HD0 63 EVdd 64 GND 65 HRE 66 HWE 67 HCS 68 HRD 69 HWR 70 HA0 71 HA1 72 CLKOUT 73 CLKIN 74 EVdd 75 GND 76 IVdd 77 GND 78 TDO 79 TICE 80 TCK 81 TDI 82 TMS 83 TRST 84 IVdd 85 GND 86 RESET 87 INT4/WAKEUP 88 INT3 89 INT2 90 INT1 91 HOLDRQ 92 HOL

5、DAK 93 BSTB 94 NU 95 MWR 96 MRD 97 I.C. 98 X/Y 99 EVdd 100 IC5 UPD77112 P62/AN2 1 P61/AN1 2 P60/AN0 3 P57/INT3 4 P56/PWM 5 P55/CNTR1 6 P54/CNTR0 7 P53/S-RDY2 8 P52/S-CLK2 9 P51/S-OUT2 10 P50/S-IN2 11 P47/S-RDY1/CNTR2 12 P46/S-CLK1 13 P45/TxD1 14 P44/RxD1 15 P43/INT2 16 P42/INT1 17 CNVss 18 RESET 19

6、P41/INT00/XCIN 20 P40/INT40/XCOUT 21 XIN 22 XOUT 23 Vss 24 P27(LED7) 25 P26(LED6) 26 P25(LED5) 27 P24(LED4) 28 P23(LED3) 29 P22(LED2) 30 P21(LED1) 31 P20(LED0) 32 P17 33 P16 34 P15 35 P14 36 P13 37 P12 38 P11/INT01 39 P10/INT41 40 P07/AN15 41 P04/AN14 42 P05/AN13 43 P04/AN12 44 P03/AN11 45 P02/AN10

7、46 P01/AN9 47 P00/AN8 48 P37/S-RDY3 49 P36/S-CLK3 50 P35/TxD3 51 P34/RxD3 52 P33 53 P32 54 P31/DA2 55 P30/DA1 56 Vcc 57 Vref 58 AVss 59 P67/AN7 60 P66/AN6 61 P65/AN5 62 P64/AN4 63 P63/AN3 64 IC4 M3803 A14 1 A12 2 A7 3 A6 4 A5 5 A4 6 A3 7 A2 8 A1 9 A0 10 D0 11 D1 12 D2 13 GND 14 D3 15 D4 16 D5 17 D6

8、18 D7 19 CS 20 A10 21 OE 22 A11 23 A9 24 A8 25 A13 26 WE 27 Vcc 28 IC6 UPD43256BGU-B12(SRAM256Kbit) VOXAD15VT & AD30VT 1 1 2 2 3 3 CN1 EH-3 1 1 2 2 3 3 CN2 EH-3 C1 0.1uF 1 2 3 WD1 DA204K INPUT JACK PCB FB1 FB-M R1 10k R13 1M +15V +15V -15V -15V C30 10pF R19 15k R26 470 R1847k C31 10pF R27 470 C35 NU

9、 C34 NU C7 0.1uFC46 220uF/16V C49 100uF/16V C47 10uF/16V C8 0.1uF +3VD R29 NU +3VA 256FS 1FS 64FS SO2 SI2 C90.1uF R28 0 256FS 1FS 64FS SO2 SI2 SYS_RES SYS_RES R32 100k R21 1.8k R53 10k R2 1k R221k C51 47pF C52 22pF C50 1uF/50V L1 BLM21P600SG L2 BLM21P600SG C10 0.1uF +15V -15V C6 0.1uF C5 0.1uF C12 0

10、.1uF C11 0.1uF Q2 KTC2875 MASTER To POWER PCB 5 6 7 IC2B NJM4556M Q1 KTA2014 R33 100k R54 22k C48 10uF/16V C3 100uF/6.3V 1 2 3 WD3 DA204K +3VA NC 1 IN 2 NC 3 GND 4 C 5 OUT 6 POW 7 NC 8 IC7 M51957BFP HRE HWE HCS HRD HWR HA0 R7947k R8047k R8347k R8447k +3VD M_CLK M_CLK 1FS 1FS 4FS 4FS +3VD R78 47k C44

11、 0.01uF R42 100k R43100k R44100k R48100k R45100k R46100k R49100k R47100k DD0 DD1 DD2 DD3 DD4 DD5 DD6 DD7 DD0 DD1 DD2 DD3 DD4 DD5 DD6 DD7 C16 0.1uF C17 0.1uF C18 0.1uF C24 0.1uF C25 0.1uF C26 0.1uF C27 0.1uF C28 0.1uF C19 0.1uF +3VD +3VD NC NC NC NC NC NC NCNC +3VD VIN 1 VSS 2 CE 3 NC 4 VOUT 5 IC9 NJ

12、M2872AF C20 0.1uF +3VD NC DSP_RES DSP_RES DSP_RES DSP_RES SYS_RES SYS_RES SYS_RES SYS_RES M_CLK M_CLK +3VD C13 0.1uF C14 0.1uF +3VD NC NC NC LED1 RED(3mm) LED2 RED(3mm) LED3 RED(3mm) LED4 RED(3mm) LED5 RED(3mm) TP1 TP SW1 PUSH SW SW2 PUSH SW SW3 PUSH SW SW4 PUSH SW R62 100 R58 100 R61100 R57100 R601

13、00 R37 10k R38 10k R39 10k R40 10k R3 1k R4 1k R5 1k R6 1k R7 1k R8 1k R9 1k R10 1k C36 0.01uF C37 0.01uF C38 0.01uF C39 0.01uF C40 0.01uF C41 0.01uF C42 0.01uF C43 0.01uF FOOT_SW_L FOOT_SW_L DGND AGND FOOT_SW_L FOOT_SW_L R35 100k +3VD 1 1 2 2 3 3 4 4 5 5 6 6 CN4 EH-6 R82 47k R75 100 1FS 1FS 4FS 4FS

14、 256FS 256FS 64FS 64FS 64FS 64FS 64FS 64FS SO2 SI2 SO2 SI2 HRE HWE HCS HRD HWR HA0 R36 100k R56 100 F_OE F_OE F_OE F_OE +3VD RXD RXD RXD RXD TXD TXD TXD TXD R41100k C15 0.1uF +3VD R81 47k R65100 R66 100 F_BUSY F_BUSY F_BUSY F_BUSY F_SCK F_SCK F_SCK F_SCK R85 12k R25 10k R69 100 NC NC NC +3VD F_SYS_R

15、ES F_SYS_RES F_SYS_RES F_SYS_RES F_VPP F_VPP F_VPP F_VPP C45 0.01uF R24 10k +3VD C21 0.1uF 12 IC10A HD74LVU04A 34 IC10B HD74LVU04A 98 IC10D HD74LVU04A 56 IC10C HD74LVU04A 1312 IC10F HD74LVU04A 1110 IC10E HD74LVU04A C55 22pF C56 22pF R151M R68 100 X2 11.2896MHz Q12 1 Q6 2 Q5 3 Q7 4 Q4 5 Q3 6 Q2 7 GND

16、 8 Q1 9 CLK 10 RESET 11 Q9 12 Q8 13 Q10 14 Q11 15 VCC 16 IC11 HD74LV4040A NC NC NC NC NC NC NC NC R71100 R72100 R70100 R74100 R73100 NC 4FS 4FS +3VD C23 0.1uF HD74LVU04A 14 7 IC10 1 2 3 4 5 6 7 8 9 10 CN6 EH-10 R76 100 R77100 R52 100k C29 0.1uF +3VD NC PRESETCH1CH2MANUALTAP +3VD NC NC +3VD PRESETWRI

17、TECH SELECTTAP AMP TYPE EFFECT TYPE FX DEPTH GAIN TREBLE MIDDLE BASS LEVEL NC NC NC R59100 R63100 A/AB RES_FRQ A/AB RES_FRQ A/AB RES_FRQ RES_FRQ A/AB MAIN PCB 1.51KLM-2462, 2463 +3VD+3VA C58 100uF/6.3V C57 100uF/6.3V +15V -15V C59 100uF/25V C60 100uF/25V AGND DGND DGND From POWER PCB 1 1 2 2 3 3 4 4

18、 5 5 6 6 7 7 8 8 CN5 EH-8 AGND 2.5V AGND AGND AGND AGND AGND AGND AGND AGND AGND AGND AGND AGND AGND AGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGND DGNDDGND DGND DGND DGND DGND DGND DGND DGND DGNDDGNDDGND DGND DGNDDGNDDGND 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 CN3 EH-9 PHONE_DT PHONE_DT R64 10

19、0 PHONE_DT PHONE_DT NC NC 2004.02.27 KLM-2463 R31 NU R30 NU R50 100k R51 100k +3VD+3VD DGNDDGND X1 8MHz C54 22pF C53 22pF R67 100 R141M M_CLK R23 10k M_CLK R87 4.7(1/8W) NC Title NumberSizeRevision DateSheet of A2 1/2 RIN 1 LIN 2 VSS 3 VA 4 VD 5 DEMO0 6 DEMO1 7 SDTO 8 ROUT 16 LOUT 15 VCOM 14 PDN 13

20、BCLK 12 MCLK 11 LRCLK 10 SDTI 9 IC3 AK4552VT AGND NU : No Use NC : No Connect 1 2 3WD6 DA204K 1 2 3WD5 DA204K R112.7k R88 3.3k R12 1.2k R89 12k C61 10uF/16V C2 10uF/16V NC NC AGND AGND AGND AGND C62 47uF/6.3V R91 0 R90 10(1/8W) V_VOL G_VOL V_VOL G_VOL C63 0.1uF V_VOL G_VOL V_VOL G_VOL R92 0 DGND NC

21、C64 0.1uF LED6 RED(3mm) R34100FX BYPASS SW5 PUSH SW SW6 PUSH SW MANUALFX BYPASS R16 10k R20 10k R55 100k NC 1 VCC 2 CS 3 SK 4 DI 5 DO 6 GND 7 NC 8 IC8 AK93C45AF C32 10uF/16V C33 10uF/16V FOOT_SW_R R17 100k +3VD FOOT_SW_R C4 0.001uF L3 BLM21P600SG C22 1uF/50V R86 0 R93 100 C69 NU C67 0.1uF C66 0.1uF

22、Shassis GNDShassis GND C68 0.1uF C65 0.1uF Shassis GND DGND ceramic FOOT_SW_R FOOT_SW_R C70 0.01uF C71 0.01uF DGND V OUT NS BP V IN GND CONTROL C72 0.1uF 收音机爱好者资料库 Ra d i o Fa n s .CN 12345678 A B C D 87654321 D C B A Q1 KTC3198GR Q2 KTC3198GR SP1 8ohm C1 100uF/35V C32 47uF/25V C9 1uF/50V C11 NU +15

23、V C35 0.22uF C26 22uF/35V C27 22uF/35V C29 220uF/35V C30 220uF/35V +Vcc(+30V) -Vss(-30V) C43 10uF/25V +15V C42 10uF/25V -15V C16 0.1uF C17 0.1uF Q3 KTC3198 A/AB C31 10uF/16V C8 1uF/50V C10 1uF/50V Max Max Min Min 2 3 4 5 1 BK BG BP 9 BH AH CH V1A 12AX7 7 8 6 AG AP AK V1B 12AX7 -15V -15V -15V -15V -1

24、5V +15V Q4 KTA1266 1 2 3 4 8 IC2A NJM2082D 5 6 7 IC2B NJM2082D 1 2 3 4 8 IC3A NJM2082D 5 6 7 IC3B NJM2082D R14 2.2k +3VD R9 22k R40 47k -15V +3VD R22 10k R10 10k C41 0.01uF PHONE / LINE OUT 1 2 3 4 5 6 J2 PHONE_JACK_SW C12 0.001uF C13 47pF R19 470k R30 68k R2 1k C3 0.1uF KLM-2464 1.61 VOX AGND DGND

25、J1 PHONE_JACK STEREO FOOT SW R69 10k C50 0.1uF HEATER1 HEATER2 2004.2.6 9 1011 IN3 D3S3 IC1C DG211 IN1 D1S1 1 23 IC1A DG211 16 1514 IN2 D2S2 IC1B DG211 8 76 IN4 D4S4 IC1D DG211 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 CN1 EH-9 RES_FRQ POWER LEVEL 0 : ON 1 : OFF 0 : ON 1 : OFF 0 : ON 1 : OFF 0 : ON 1 : OF

26、F V+ V- GND 13 5 4 12 DG211 IC1 C15 0.1uF C14 0.1uF R7 22k -15V +15V C6 0.1uF C5 0.1uF 1 1 2 2 CN2 VH-2 10 INCH R1 1k R5 4.7k R6 4.7k R38 47k R3 4.7k R39 33kR4 4.7k R20 220 R23 47k R24 33k R27 47k R28 33k R26 2.2k R8 10k R41 330 R42 5.6k R32 330k R31 330k R33 330k R34 330k R35 3.3k R36 3.3k R43 4.7k

27、 R15 2.2k R18 2.2k R17 2.2k R48 0.47(3W) R46 10 (1W) +3VD 3 2 1 VR1A 100kB 3 2 1 VR1B 100kB R21 220 R25 10k R44 1.8k R45 2.2k R2922k + C34NU +C33 47uF/35V Title SizeNumberRevision DateSheet of 2/2 A2 AD30VT POWER PCB +3VD 3 1 2 D1 KBP206G 3 4 5 C36 2200uF/50V C37 2200uF/50V C18 0.1uF C19 0.1uF 13 2

28、VV GND INOUT IC5 7815 C20 0.1uF C21 0.1uF C22 0.1uF C23 0.1uF D2 1N4002 D5 1N4002 C38 100uF/25V C39 100uF/25V 4 D7 SHSW04M 6 7 C45 2200uF/16V 13 2 VV GND INOUT IC7 BA033T C24 0.1uF C25 0.1uF D6 1N4002 C40 100uF/6.3V 5 8 9 HEATER1 HEATER2 1 10 2 R49 330(1W) R50 330(1W) R51 100(1W) R52 100(1W) 12 SW1

29、SW-SPST F1 FUSE F2 FUSE 1 OUT 3 IN 2 GND IC6 7915 R54 470 LED1 RED(5mm) 1 1 2 2 3 3 CN4 EH-3 1 1 2 2 3 3 CN5 EH-3 POWER POWER 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 CN3 EH-8 R4710 (1W) C440.22uF D41N4002 D31N4002 Chassis GNDCircuit GND Chassis GND NC FOOT_ SW_R +VCC(+30V) -VSS(-30V) -15V +15V +3VD R55 0 AG

30、ND DGND NC : No Connect D14 1N4148 D15 1N4148 D8 1N4148 D9 1N4148 FB1 FB-M C46 22pF LINE OUT PRE OUT PHONE_DT PHONE_DT LINE OUT PRE OUT FOOT_SW_L FOOT_SW_L PHONE_DT LINE OUT PRE OUT LINE OUT PRE OUT PHONE_DT FOOT_ SW_R R56 10k HEATER1 HEATER2 HEATER1 HEATER2 From MAIN PCB To MAIN PCB Q5 KTC2874 R57

31、1k C47NU R58 470 R59 1k POWER SUPPLY BLOCK POWER BLOCK C48 100uF/25V R61 47(1W) Q7 KTA1266 Q6 KTC3198 R60 10k +3VD R37 100k R53 10k D12 1N4002 D13 1N4002 C49 0.22uF/50V Q8 KTC3198 R64 22k R62 22k R65 10k +3VD Q9 KTC3198 R63 2.2k R67 16k 0 : A 1 : AB VL +3VD R70 47k C53 47uF/35V -15V +15V C28 10uF/35

32、V R66 220k R68 3.3k ADJUSTMENT RESISTOR R11 10k C7 0.1uF +3VD D10 1N4148 D11 1N4148 FOOT_SW_L FOOT_SW_L FOOT_SW_R FOOT_SW_R FB2 FB-M C55 22pF C54 100uF/25V R73 47(1W) -15V C2 4.7uF/50V C4 10uF/16V C56 10uF/16V 3 14 10 9 7 8 IC4LM3886 R12 22k C63 0.1uF ceramic C64 0.1uF ceramic Shassis GND Shassis GN

33、D C57 0.1uF C58 0.1uF C59 0.1uF C60 0.1uF C61 0.1uF C62 0.1uF Shassis GND Shassis GND Shassis GND Shassis GND ceramic ceramic ceramic ceramic ceramicceramic ceramic ceramic ceramic ceramicceramic ceramic ceramicceramic ceramic ceramic ceramic ceramic ceramic ceramic ceramic ceramic ceramic ceramic c

34、eramic ceramic ceramic ceramic C65 NU C51 3pFceramic NU : No Use R16 0 R13 0 1,5 C52 0.1uF C66 10pF ceramic ceramic C67 3.3uF/50V C68 3.3uF/50V Vishay Siliconix R7147k_F(1%) R72 47k_F(1%) (Delete=6dB up) If the output power is not high enough, please delete both R67 and R68. Even doing above modify,

35、 if the output power is not go to correct level, please exchange the TUBE itself. 收音机爱好者资料库 Ra d i o Fa n s .CN 12345678 A B C D 87654321 D C B A Q1 KTC3198GR Q2 KTC3198GR SP1 8ohm C1 100uF/35V C32 47uF/25V C9 1uF/50V C11 NU +15V C35 0.22uF C26 22uF/35V C27 22uF/35V C29 220uF/35V C30 220uF/35V +Vcc(

36、+20V) -Vss(-20V) C43 10uF/25V +15V C42 10uF/25V -15V C16 0.1uF C17 0.1uF Q3 KTC3198 A/AB C31 10uF/16V C8 1uF/50V C10 1uF/50V 2 3 4 5 1 BK BG BP 9 BH AH CH V1A 12AX7 7 8 6 AG AP AK V1B 12AX7 -15V -15V -15V -15V -15V +15V Q4 KTA1266 1 2 3 4 8 IC2A NJM2082D 5 6 7 IC2B NJM2082D 1 2 3 4 8 IC3A NJM2082D 5

37、 6 7 IC3B NJM2082D R14 7.5k +3VD R9 22k R40 47k -15V +3VD R22 10k R10 10k C41 0.01uF PHONE / LINE OUT 1 2 3 4 5 6 J2 PHONE_JACK_SW C12 0.001uF C13 47pF R19 470k R30 68k R2 1k C3 0.1uF KLM-2464 0.6 VOX AGND DGND J1 PHONE_JACK STEREO FOOT SW R69 10k C50 0.1uF HEATER1 HEATER2 2004.1.9 9 1011 IN3 D3S3 I

38、C1C DG211 IN1 D1S1 1 23 IC1A DG211 16 1514 IN2 D2S2 IC1B DG211 8 76 IN4 D4S4 IC1D DG211 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 CN1 EH-9 RES_FRQ 0 : ON 1 : OFF 0 : ON 1 : OFF 0 : ON 1 : OFF 0 : ON 1 : OFF V+ V- GND 13 5 4 12 DG211 IC1 C15 0.1uF C14 0.1uF R7 22k -15V +15V C6 0.1uF C5 0.1uF 1 1 2 2 CN2 VH

39、-2 8 INCH R1 1k R5 4.7k R6 4.7k R38 47k R3 4.7k R39 33kR4 4.7k R20 220 R23 15k R24 33k R27 15k R28 33k R26 2.2k R8 10k R41 330 R42 5.6k R32 330k R31 330k R33 330k R34 330k R35 3.3k R36 3.3k R43 3.3k R15 100k R18 100k R17 7.5k R48 0.47(3W) R46 10 (1W) +3VD R21 220 R25 10k R44 1.2k R45 1k R29160k + C3

40、4NU + C33 47uF/35V Title SizeNumberRevision DateSheet of 2/2 A2 AD15VT POWER PCB +3VD 3 1 2 D1 KBP206G 3 4 5 C36 2200uF/35V C37 2200uF/35V C18 0.1uF C19 0.1uF 13 2 VV GND INOUT IC5 7815 C20 0.1uF C21 0.1uF C22 0.1uF C23 0.1uF D2 1N4002 D5 1N4002 C38 470uF/25V C39 470uF/25V 4 D7 SHSW04M 6 7 C45 2200u

41、F/16V 13 2 VV GND INOUT IC7 BA033T C24 0.1uF C25 0.1uF D6 1N4002 C40 100uF/6.3V 5 8 9 HEATER1 HEATER2 1 10 2 R49 33(1W) R50 33(1W) R51 100(1W) R52 100(1W) 12 SW1 SW-SPST F1 FUSE F2 FUSE 1 OUT 3 IN 2 GND IC6 7915 R54 470 LED1 RED(5mm) 1 1 2 2 3 3 CN4 EH-3 1 1 2 2 3 3 CN5 EH-3 POWER POWER 1 1 2 2 3 3

42、4 4 5 5 6 6 7 7 8 8 CN3 EH-8 R4710 (1W) C440.22uF D41N4002 D31N4002 Chassis GNDCircuit GND Chassis GND NC FOOT_ SW_R +VCC(+20V) -VSS(-20V) -15V +15V +3VD R55 0 AGND DGND NC : No Connect D14 1N4148 D15 1N4148 D8 1N4148 D9 1N4148 FB1 FB-M C46 22pF LINE OUT PRE OUT PHONE_DT PHONE_DT LINE OUT PRE OUT FO

43、OT_SW_L FOOT_SW_L PHONE_DT LINE OUT PRE OUT LINE OUT PRE OUT PHONE_DT FOOT_ SW_R R56 10k HEATER1 HEATER2 HEATER1 HEATER2 From MAIN PCB To MAIN PCB Q5 KTC2874 R57 1k C47NU R58150k R59 10k POWER SUPPLY BLOCK POWER BLOCK C48 100uF/25V R61 47(1W) Q7 KTA1266 Q6 KTC3198 R60 10k +3VD R37 100k R53 10k D12 1

44、N4002 D13 1N4002 C49 0.22uF/50V Q8 KTC3198 R64 22k R62 22k R65 10k +3VD Q9 KTC3198 R63 2.2k R67 18k 0 : A 1 : AB VL +3VD R70 47k C53 22uF/35V -15V +15V C28 10uF/35V R66 220k R68 2.7k ADJUSTMENT RESISTOR R11 10k C7 0.1uF +3VD D10 1N4148 D11 1N4148 FOOT_SW_L FOOT_SW_L FOOT_SW_R FOOT_SW_R FB2 FB-M C55

45、22pF C54 100uF/25V R73 47(1W) -15V C2 4.7uF/50V C4 10uF/16V C56 10uF/16V C63 0.1uF ceramic C64 0.1uF ceramic Shassis GND Shassis GND C57 0.1uF C58 0.1uF C59 0.1uF C60 0.1uF C61 0.1uF C62 0.1uF Shassis GND Shassis GND Shassis GND Shassis GND ceramic ceramic ceramic ceramic ceramicceramic ceramic cera

46、mic ceramic ceramicceramic ceramic ceramicceramic ceramic ceramic ceramic ceramic ceramic ceramic ceramic ceramic ceramic ceramic ceramic ceramic ceramic ceramic C65 NU C51 NU NU : No Use R16 0 R13 0 1 2 3 4 5 IC4 LM1875 C52 0.1uF C66 10pF ceramic ceramic C67 470uF/35V C68 470uF/35V Vishay Siliconix

47、 C80 0.0056uF C81 0.0056uF C82 0.0068uF R12 160k R71 82k R72 39k R7420k R75130k R7656k R7716k R781.1k Delete=6dB up A delete=5dB up A+B delete=10dB up A+B+C delete=15dB up A+B+C+D delete=20dB up How to adjisut the output power (WATT) 1. Delete R67 and R68 -6dB UP 2. Delete R74 and R78 -11dB UP 3. De

48、lete R72 and R77 -16dB UP 4. Delete R71 and R76 -21dB UP 5. Delete R12 and R75 -26dB UP Please try to increase the power by above order(1-5). Even doing above modification ,If POWER is not go to correct wattage, please exchange the TUBE itself. AD15VT PART CODEPART NAMENOTEQTY 320001607IC UPD77112GC

49、-017-9EU PWB0312051 320011236IC M3803-7M6H-094FP PWB0312051 324038005IC TDA1308T PWB0312051 600006503AC POWER CORD DC-627-J01 M.PART 100JP1 *V903010000TR NPN KTC3198-GR PWB0312096 *V903010001TR PNP KTA1266-GR PWB0312092 *V903010017TRANSISTER KTA2014PWB0312051 *V903010018TRANSISTER KTC2875PWB0312051 *V903010019TRANSISTER KTC2874BPWB0312091 *V903111000SILICON RECTIFIRE DIODE 1N4002PWB0312097 *V903111002SILICON SWITCHING DIODE 1N4148PWB0312096 *V903111011BRIDGE DIODE KBP206G PWB0312091 *V903111012DOUBLE D