Soldano_x88r 电路图 维修原理图.pdf

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1、5 5 4 4 3 3 2 2 1 1 DD CC BB AA 11 SOLDANO X88R C 11Friday, July 12, 2002 Title SizeDocument NumberRev Date:Sheetof E C C B E B D A A VR9 25K VR3 1M VR14 25K J1 IN 1 2 4 J2 OUT 1 2 4 R14 220K SW3 BRIGHT CLEAN R35 39K R9 470K VR5 500K R1 1M U5-2 12AX7 6 7 8 VR1 500K VR15 1M C17 0.022uF C11 0.022uF R2

2、2 100K C24 0.022uF R39 330K R46 82K U3-1 12AX7 1 2 3 R7 100K R28 1.8K C3 0.0022 OI4A VTL5C1 34 VR13 1M R42 47K VR4 25K VR8 1M R10 1M C18 0.022uF R4 1.8K C12 0.022uF R23 2.2K R34 470K U2-2 12AX7 6 7 8 U5-1 12AX7 1 2 3 C19 470pF R47 2.2K SW1 BRIGHT LEAD C5 1uF R27 100K R41 2.2K R25 330K C4 0.001 OI5A

3、VTL5C1 34 C7 0.001 U3-2 12AX7 6 7 8 C20 0.022uF R32 680K C15 0.1uF R43 470K C13 470pF R3 220K R15 100K C14 0.022uF R18 47K U1-1 12AX7 1 2 3 R24 680K C8 0.022uF C23 0.022uF U6-1 12AX7 1 2 3 R12 39K C16 470pF VR12 250K C6 0.022uF R11 100K R19 330K R5 470K R26 220K R31 330K C2 0.047uF R38 2.2M R16 1.8K

4、 R44 220K R21 470K R36 100K R37 2.2K U1-2 12AX7 6 7 8 R30 47K VR2 250K C1 1uF OI1A VTL5C1 34 VR11 500K C22 470pF U6-2 12AX7 6 7 8 R13 330K R20 680K R29 100K R2 68K R40 100K R6 470K VR10 500K C10 470pF C21 120p R33 470K C9 1uF R45 2.2K C25 0.1uF U4-1 12AX7 1 2 3 VR7 250K VR6 500K U4-2 12AX7 6 7 8 R17

5、 100K R8 1.8K U2-1 12AX7 1 2 3 OI3A VTL5C1 34 SW2 BRIGHT CRUNCH OI2A VTL5C1 34 收音机爱好者资料库 Ra d i o Fa n s .CN 5 5 4 4 3 3 2 2 1 1 DD CC BB AA SWITCH/INDICATION POWER SUPPLY Filament reference supply 1N4007 To minimize inductive coupling wire filaments in this order. F1 is the filament of V1 LS1-LS3 -

6、 HASCO HS212 or similar Footswitch capabilities can easily be added to this schematic by putting a SPST switch before SW2 so that it could be turned off when footswitch is enabled and wiring the gates of Q1-Q3 to a footswitch connector. Alternatively a 4 position rotary channel switch can be used wi

7、th one position left unwired. +432V +5V All voltages for switching circuits are specified relative to their floating ground. This floating ground should NOT be connected to the signal ground. D3-D6 MUR1100E D11-D13 1N4148 D14-D16 are red LEDs w 4V voltage drop and 25mA current rating D1, D2 1N5368B

8、D1 and D2 depend on how much voltage the transformer is putting out and might not even be necessary The voltage measurement on C1 should be less than its voltage rating by around 18-20V. This measurement is taken without connecting the B+ supplies to tubes, but with filaments wired and connected. D3

9、-D6 can be replaced with similar 1000V fast recovery rectifiers 21 X88R POWER SUPPLY, SWITCHING AND INDICATION C 11Tuesday, August 20, 2002 Title SizeDocument NumberRev Date:Sheetof Vref D C Vref B E A D1 F3 SW1 POWER LS1 3 4 5 6 8 7 1 2 OI4A TLP227 R16 180 F1 1A SLO BLO +C7 22uF 450V OI3A TLP227 R4

10、 100K R11 47K 7805 U1 LS2 3 4 5 6 8 7 1 2 OI2A VTL5C1 D11 + C8 4700uF 16V R5 10K 2W R14 47K F2 +C1 47uF 450V R8 10K 2W -+ D3-D6 R19 390 R18 47K R17 43 R6 10K 2W LS3 3 4 5 6 8 7 1 2 F6 D12 SW2 CHANNEL J1 AC PWR 12 3 R2 1K 2W F1 D15 CRUNCH 150VAC 150VAC 6.3VAC T1 Hammond 269BX 1 5 6 4 8 9 10 R21 43 Q2

11、 2N7000 +C4 22uF 450V R9 100 + C3 100uF/100V F5 Q3 2N7000 +C6 22uF 450V D13 -+ D7-D10 D16 LEAD R10 100 +C2 47uF 450V R20 180 R3 1M R7 10K 2W D2 F4 R1 150K 2W +C5 22uF 450V + C9 4700uF 16V R15 390 Q1 2N7000 OI1A VTL5C1 R13 43 OI5A TLP227 D14 CLEAN R12 390 收音机爱好者资料库 Ra d i o Fa n s .CN A A B B C C D D

12、 E E 44 33 22 11 Initial design: Randall AikenREV: CHANNEL1 CHANNEL2 CHANNEL3 TO AMPLIFIER SWITCHING LOGIC (1) ALL SWITCHES ARE MOMENTARY CONTACT SPST CHANNEL1CHANNEL2CHANNEL3 NOTES: (2) VCC SUPPLY CAN RANGE FROM 5V TO 15V FOOTSWITCHES RESET LOGIC SWITCH LATCHES CHANNEL INDICATORS (SELECTED CHANNEL

13、HIGH, ALL OTHERS LOW) (3) OUTPUT CONTROL SIGNALS ARE CMOS-COMPATIBLE LEVELS (CAN SOURCE/SINK AROUND 0.5mA MAX AT 5V). 5-PIN DIN (MIDI) CABLE RECOMMENDED TYPICAL RELAY INTERFACE CIRCUIT (5) ALL PARTS AVAILABLE FROM DIGI-KEY (1-800-DIGIKEY) (4) LED CURRENT LIMITING RESISTOR VALUE IS FOR 5V. IT MAY NEE

14、D TO BE LARGER FOR HIGHER VCC VOLTAGES POWER-UP RESET A AIKEN AMPLIFICATION 10836 CLEMSON BLVD. #208 SENECA, SC 29678 TEL: 864-624-9796 FAX: 864-624-9797 1 3-CHANNEL FOOTSWITCH CONTROLLER Tuesday, June 22, 1999 Title SizeDocument NumberRev Date:Sheet of CHANNEL2 CHANNEL3 CHANNEL1 CHANNEL1 VCC VCC VC

15、CVCC VCC VCC VCC +5V VCC J1 CON5 1 2 3 4 5 D1 GREEN LED 21 R1 330 12 D2 YELLOW LED 21 D3 RED LED 21 C? 0.1uF 12 D4 1N4148 21 D? 1N4148 21 U1 CD4044 4 3 6 7 12 11 14 15 5 13 9 10 1 168 2 R0 S0 R1 S1 R2 S2 R3 S3 EN Q0 Q1 Q2 Q3 VDDVSS NC U2D CD4081 12 13 11 U2B CD4081 5 6 4 U2A CD4081 1 2 3 U2C CD4081 8 9 10 S1 SW SPST 12 S2 SW SPST 12 S3 SW SPST 12 R2 47K 12 R3 47K 12 R4 47K 12 Q1 2N7000 2 31 Q2 2N7000 2 31 Q3 2N7000 2 31 Q4 2N7000 2 31 K1 G5V-2-H-DC5 4 6 8 13 11 9 1 16 收音机爱好者资料库 Ra d i o Fa n s .CN