Ashly-MX508-mix-sch1 电路图 维修手册.pdf

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1、VR1B + + C29 R8 R4 R12 R10R9 Q1 Q2 D1D4 C3 C1 - + + - U1B - + + - U2B R11R5 R15 R19 - + + - U2A R26 R27 R20 R21 C11 C12 R28 R25 R24 VR1A SW1 R23 R2 R1 R3 J7 + + C32 + + C33 R14 1 2 3 J8 C35 R13 C34 J9 C13 + + C15 C10 C7 + + C9 R17 - + + - U1A R18 R16 J5-1 - + + - U3A R39 R40 R36 VR3A VR3B R2K C20 C2

2、6 VR3C - + + - U3B + + C21 C24 R37VR4 R38 C22 VR2 + + C14 R35 R34 - + + - U4B R42 + + C16 J5-6 J5-5 C19 D6 J3 J2 R45 R46 VR5A VR5B VR6A R48 R47 R43 R44 R50 R49 VR6 R41 - + + - U4A LED1 Q4 C18 R30 R31R32 Q3 R29 D7D5 + + C8 R22 R6 R7 D3D2 C2 C23 C6 C5 C4 C27 C28 J10 J5-2 J11 R63 C30 C31 C17 J5-3 J5-4

3、J4-2 J4-1 J4-4 J4-6 J4-3 R62 J4-5 FIXED SEND/RETURN LOOP - MANUAL FILM FIX FOR PCB - NO PCB #REV5814-15814-B5-16-97403 B 5-16-97 10S5814B.SCH 4-11-96INITIAL RELEASE - SPLIT INPUT CARD5814-15814-A MX508 STEREO MIXER WEBSTER, NY 14580-9103 847 HOLT ROAD JD - PCB REVSCH REVDCNDESCRIPTIONDATE INPUT CHAN

4、NEL CARD11 DRAWING NO. SCHEMATIC DIAGRAM REV. DATE: DATE: OFSHEETSCALE: APPROVED: DRAWN: ASHLY AUDIO INC. ASHLY 10K 100P 100P 4125 4125 4560 3300 .1 .0022 .1 4560 4560 4560 4560 4560 4560 5.90K 5.90K 5.90K 2.55K2.55K 5.90K 5.90K5.90K 4560 .001 .001 3.3K 63V 63V 47uF 47uF 100 B50K .082 .082 5.6K5.6K

5、.0082 1K1K B20K 15C 15C 100K 100K 6.3V 10K 18K 100P X 27P 100P 100P 2K X X 22K 10 10 22K 22K 22K 22K 47U 100P 100P 220P 220P 10C2K 47K3.3K 18K 6.8K 6.8K CW 47U 47U LINE MIC 10K 10K .0082U 100P B20K 1.5K CLIP RED +19dB 2N4143 2N4143 62K 390K .1uF 2.4K 6.8K 6.8K 5.6K 5.6K 5K LIN 4.7K 4.7K 20K LIN 20K

6、LIN CW CW CW 47U 47U B50K .015U 2K 2K B10K 8.2K 10K 47U 10K 6.8K 6.8K 1:2 160 620 620 Y W R B G +48VDC 10 (-2.0 dB mid, +.8 dB max) (+18.1dB MAX, +4.2dB MID) (-3.3dB) J1-10 J1-11 J1-8 J1-9 5 4 1 2 IF TRS PATCH RING = RETURN TIP = SEND INPUT LINE * * INPUT TRANSFORMER CARD ONLY (OPTIONAL) INPUT TRANS

7、FORMER TRANSFORMER TO INSTALL CUT OUT CARD BACK CARD FRONT V+ G V- SEND/TRS PATCH NC GAIN LINE MIC GAIN +18 (+16.5dB MAX, +1.9dB MID) -18 OUT (16.3dB TO 50.6dB GAIN) (+/-12.5dB AT 20KHz, MID SHELF=7KHz) (+/-18dB AT 20Hz, MID SHELF=130Hz) +/-13dB, Q=1.3 MID SWEEP 130Hz-7KHz (0 dB OR +5.2 dB) PEAK BUS

8、 -4.2 dB MID +8.1 dB MAX +18 CW CHANNEL LEVEL PAN J2 RIBBON CONNECTOR J1 RIBBON CONNECTOR 8- RIGHT PROGRAM 3- MONO OUTPUT 14- -18V METER 1- +18V METER 11- PRE RIGHT MASTER 12- PRE LEFT MASTER 9- LEFT PROGRAM 10- RIGHT CHANNEL METER 13- LEFT CHANNEL METER 2- G 7- SEND 2 SUB OUT 5- SEND 2 MASTER 6- SE

9、ND 1 SUB OUT 4- SEND 1 MASTER 14- +48V (PHANTOM PWR) 13- -18V 12- +18V 11- AUX SEND 2 BUS 10- AUX SEND 1 BUS 9- RIGHT MIX BUS 8- LEFT MIX BUS 7- G 6- G 5- G 4- G 3- G 2- +18V 1- -18V POST PRE SEND 2 BUS SEND 1 BUS RIGHT MIX BUS LEFT MIX BUS SEND 2 SEND 1 RETURN HIGH SHELF LOW SHELF CW CW MID FREQ MID LEVEL CW CW CW INPUT MIC PAD -20DB CW -18 J13-6J13-7 J14 J15 J13 5 4 1 2 3 RadioFans.CN 收音机爱 好者资料库