Laney_LA65C_Schematic电路图.pdf

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1、12345678 A B C D 87654321 D C B A Title NumberRevisionSize A3 Date:15-Apr-2002Sheet of File:E:PCBProtel PCBS9363_4.ddbDrawn By: LA65C PREAMP 93634 119363_4.Sch Rich Thompson BLT Industries LA65C PREAMP 4 11 Rich Thompson BLT Industries 12 3 SK4 SK1 MJACK U1A TL072 U1B TL072 U2B TL072 U2A TL072 VR1 1

2、00KA6S VR8 22KB6S R6 10K R26 100K D1 1N4148 D12 1N4148 C11 10P 50V C8 1N 100V G +15V -15V C3 10U 50V C2 10U 50V C1 10U 50V C9 10P 50V C10 10P 50V R1 100K R2 100K R39 1K R40 1K G G G +15V -15V R45 3K3 GG R46 3K3 R48 4K7 G R16 10K C12 10P 50V G Guitar In G D13 1N4148 D4 1N4148 +15V -15V R67 33K C29 10

3、0P 100V +15V -15V G C13 10P 50V G FP Flame proof resister Must only be replaced with same type and rating Indicates safety critical component Must only be replaced with approved type Auxillary In Mic Volume CH1 Volume CH2 LN1 LN2 LN9 C33 10N 100V R65 1M G R57 10K R49 4K7 SK3 MJACK G C4 10U 50V VR4 2

4、2KB6S VR5 22KB6S C21 47N 100V C15 22N 100V C18 22N 100V C24 270P 250V R53 4K7 R56 4K7 R7 10K R55 4K7 R64 1M G Treble Bass U3A TL072 LN7LN5 LN6 C5 10U 50V VR3 22KB6S VR9 22KB6S C22 47N 100V C14 22N 100V C17 22N 100V C23 270P 250V R58 4K7 R59 4K7 R17 10K R54 4K7 R63 1M G5 Treble Bass U4A TL072 LN3 LN4

5、 U4B TL072 R27 10K R30 10K R28 10K C28 100P 100V G VR6 4K7B6S G Master Volume NOTE: All capacitors to be rated at 16V or higher NOTE: All resistors to be 1/4W unless otherwise stated U7A TL072 VR7 22KB6S VR10A 100KC6SD VR10B 100KC6SD R10 10K R12 10K R11 10K R13 10K C19 22N 100V C32 10N 100V G +15V -

6、15V Paramid Gain Paramid Frequency LN8 U5A TL072 U10B TL072 +15V2 -15V3 R77 100R R72 47K R42 1K R71 39K C20 22N 100V C25 270P 250V 12 HD2 HD2WL 12 HD3 HD2WL R73 22K R74 22K R43 1K R44 1K C43 4N7 100V C45 2N2 100V C48 100N 63V G4G4 G G3 G3 G3 C40 1U 63V G3 VR11 4K7B6S G Spring Reverb Reverb Level LN1

7、1 U8A TL072 U8B TL072 U9B TL072 U9A TL072 R23 10K R3 6K8 R32 100K C38 220N 63V C44 4N7 100V C34 10N 100V GG Gb C30 100P 100V G U12 BL3207 C57 4U7 63V +9V +9V U13 CD4046 +9V Gb R33 100K R604K7 R614K7 G Gb G1 R50 2K2 R36 100K C6 10U 50V G G Gb C54 47U 50V C55 47U 50V C53 47U 50V G G R78 680K R79 470K

8、R80 470K +15V -15V +9V C46 1N 100V C47 1N 100V C27 270P 250V C49 100N 63V R51 2K2 GG G L.F.O GG LN12 LN13 R66 6K8 C56 1N 100V R68 33K R69 33K R70 33K R83 68K R47 3K3 R8 10K 16 15 14 12 11 10 9 13 U11B NE571 1 2 3 4 5 6 7 8 U11A NE571 C51 2U2 63V C41 1U 63V C26 270P 250V C42 1U 63V R81 47K R82 47K Ga

9、 Ga C39 1U 63V C31 100P 100V R75 22K C52 2U2 63V G VR2 100KA6S G C59 47P 50V G +15V U5B TL072 R76 100R VR13 100KH Clock Min Adjust COA SW1A COA SW2AR9 10K COC SW1C COC SW2C R18 10K R22 10K CH2 Chorus CH1 Chorus CH1 Reverb CH2 Reverb R31 22K R35 10K Bot Top G SK2 PHONOSTV R19 22K G R20 22K Tape/CD In

10、 Chorus Depth U7B TL072 G SW3A R15 10K R14 10K C35 47P 50V Phase Reversal R29 100K G LED1 LED3MMY TS1 MPSA42 D6 5V1 ZD0.5W D5 1N4148 R25 10K R52 2K2 COB SW2B COD SW2D Ga Chorus Rate C50 2U2 63V -15V3 R21 4K7 LED2 LED3MMR G Power C58 470U 16V G1 G1 +9V R84 220R 2W5 D7 9V1 ZD0.5W +15V -15V -15V +15V 1

11、2345678 HD1 HD8WL To Output PCB +15V2-15V2 U10A TL072 R38 22K R34 100K R37 100K G R24 22K +15V2 -15V3 R85 100K G D2 1N4148 D3 1N4148 +15V2 -15V3 C36 47U 50V C37 47U 50V G1 G1 C302 100N 63V C303 100N 63V G G +15V2 -15V2 CHORUS RATE LED C7 10U 50V G3 G +15V -15V LN16 G5 LN17 G4 LN18 LN19-15V3 LN20 G1

12、LN21 LN22 GG LN23 LN24 LN25 LN26 +15V+15V2 LN27 LN28 -15V LN29 LN30 Ga +9V Gb LN31 Wire Pad A-B Wire1 Wire2 Wire3 LN32 C60 2U2 63V G C80 10U 50VR86 100K G C61 10U 50V R88 100K G4 R87 3K3 R90 330K C70 100N 63V Gb G FX Send FX Return DI Output C83 10P 50V C85 10U 50V C86 10U 50V GG LN33 CLOCK TEST LN1

13、4 C87 10U 50V VR14 10KH CHORUS BIAS 12 HD4 HD2WL 12 HD5 HD2WL OPTIONAL HEADERS FIT IF REQUIRED VR12 100KC6S LN34 0R0 LN35 0R0 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:15-Apr-2002Sheet of File:E:PCBProtel PCBS9364_3.ddbDrawn By: LA65C OUTPUT PCB 93642

14、 119364_3.Sch Rich Thompson BLT Industries LA65C OUTPUT PCB 2 11 Rich Thompson BLT Industries SK4 MJACK SK5 MJACK G G Send Return U5A TL072 R30 10K R31 10K G C17 4U7 63V SK6 SJACKDI Out G G (FX LOOP) SW1A 2P2WPS R53270R 5W R54330R 5W D9 15V ZD1.3W D8 15V ZD1.3W C36 47U 50V C37 47U 50V +15V -15V GG G

15、G C302 100N 63V C303 100N 63V G G D3 1N5404 D4 1N5404 D6 1N5404 D5 1N5404 D2 1N4007 P7 PAD3 P8 PAD3 P9 PAD3 C13 3300U 50V C14 3300U 50V R5 1K G Chassis +28V -28V R11 4K7 R12 47K D1 1N4148 C5 4U7 63V C7 100U 25V R15 22K R14 10K G G R3 100K R1 470R C2 22UF 50V C9 100N 100V C10 100N 100V -28V +28V R17

16、10R 2W5 G C11 100N 100V SK2 MJACK SK1 SJACK R7 47R C4 47N 100V G G SP2 SPADE4.8 SP1 SPADE4.8 G 12345678 HD1 HD8WL To Preamp PCB To Loudspeaker +V To Loudspeaker -V External Loudspeaker HeadPhones +VI+VP -VI-VP -IN +IN GIN STBY MUTE MSGND BS OUT 1 10 9 4 3 2 713 14 6 U1 TDA7294 Link to chassis LN4 0R

17、0 LN5 0R0 R10 470R 0.5W hs1 Gi Gi Gi LN10 0R0 C1 47U 50V Gmu Gmu LN11 0R0 +28V -28V +15V-15V Loop Disable C16 10U 50V R41 1K G G U5B TL072 +15V -15V R32 10K R33 10K G R4 100K G G C6 4U7 63V C3 100P 100V R16 2K2 TS1 MPSA42 Gi2 TS2 MPSA42 R8 10K +28V C8 22UF 50V Gi R6 100K Gi2 R2 1K TS3 MPSA92 D7 1N4148 R9 4K7 R13 18K Gi2 +28V G LN13 0R0 LN12 LN15 0R0 Gi2 R55 100K LN36 RadioFans.CN 收音机爱 好者资料库