Crate_BFX-50a_(07S447)_Schematic电路图.pdf

DCBA 4 3 2 NOTES: THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL. CAUTION: TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWER AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE TOUCHING INTERNAL PARTS. 1) CAUTION: SHOCK HAZARD! 2) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/4W-5% TOL. CAPACITOR VALUES IN MICROFARADS, 50V-10% TOL. 3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE AND 10 MEGOHM DIGITAL VOLTMETER. SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND THAT EXPLAINED IN THE OPERATING INSTRUCTIONS. DCBA 1 FE 1 Signatures: Checked: Drawn: Sheet Class Code: THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO Drawing Size: Drawing Type: Schematic Tolerance: Released: REVDateDESCRIPTION E C 10/21/99 1 - REM VALUE CHANGES CONTROL ISSUE 0 D 1/31/2000 12/21/99 INITIAL ISSUE R00277 C of Drawing Title: Drawing Number: NONE 1 Ecr(s)/Ecn(s) First Used On: ST. LOUIS MUSIC, INC Date: 7/16/99 11880 Borman Drive, St. Louis, MO 63146 Chgd ByAppvd by F BFX50a 07S447-XX 2 PWA - BASS AMPLIFIER Date 4 3 DCBA 4 3 2 NOTES: THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL. CAUTION: TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWER AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE TOUCHING INTERNAL PARTS. 1) CAUTION: SHOCK HAZARD! 2) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/4W-5% TOL. CAPACITOR VALUES IN MICROFARADS, 50V-10% TOL. 3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE AND 10 MEGOHM DIGITAL VOLTMETER. SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND THAT EXPLAINED IN THE OPERATING INSTRUCTIONS. DCBA 1 FE 1 Signatures: Checked: Drawn: Sheet Class Code: THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO Drawing Size: Drawing Type: Schematic Tolerance: Released: REVDateDESCRIPTION E C 10/21/99 1 - REM VALUE CHANGES CONTROL ISSUE 0 D 1/31/2000 12/21/99 INITIAL ISSUE R00277 C of Drawing Title: Drawing Number: NONE 1 Ecr(s)/Ecn(s) First Used On: ST. LOUIS MUSIC, INC Date: 7/16/99 11880 Borman Drive, St. Louis, MO 63146 Chgd ByAppvd by F BFX50a 07S447-XX 2 PWA - BASS AMPLIFIER Date 4 3 JWOPT2 T/S J3 EXT SPEAKER SLVE_SW SLEEVE TIP_SW RING RING_SW TIP TRS HEADPHONE J4 R32 100 DO NOT INSTALL JWOPT2 ! R31 1K JWOPT1 BROWN 2 1 J5 156-2V D10 1N4002 D11 1N4002 R24 680 R26 22K R27 22K R28 22K R30 4.7 2 1 4 TDA2050 D-GND BROWN R29 680 100V 10 uF C22 C23 100V .22 D-GND J9 WHITE BLUE AC NEUTRAL GRAY/WHT AC NEUTRAL AC VOLTS TO SWITCH J9 WHITE GRAY/WHT AC VOLTS TO SWITCH DO NOT INSTALL JWOPT1 ! BLACK 50V 2.2 uF C4 C3 100V 220 pF D-GND D13 1N4002 C2 200V 56 pF T/S J1 INPUT 2 3 1 TLO-72 D2 1N914 D1 1N914 C1 100V .047 uF R2 220K R3 15K R1 22K C6 100V .001uF 100V 10 uF C5 50V 1 uF C10 6 5 7 TLO-72 CCW CW 50K L CONTOUR P1 R6 2.2K R7 10K R5 1K R10 100K 1 2 3 4 5 6 7 8 9 10 11 12 RC1 Value 1 2 3 4 5 6 7 8 9 10 11 12 RC1A Value R4 1K R9 220 50V 1 uF C8 CCW CW 10K L P4 R11 4.7K R8 1K R12 15K C7 100V 0.0047 C I O SW1:A C I O SW1:B C9 200V 56 pF D-GND 50V 2.2 uF C19 C21 100V .22 C20 100V 220 pF 2 1 4 TDA2050 R17 22K R25 4.7 C27 100V .1 uF C14 200V 56 pF D12 1N4002 R22 47K R21 22K CCW CW 50K L P3 LO MID CCW CW 50K L P5 HI MID CCW CW 50K L P6 HIGH 2 3 1 TLO-72 C11 100V .01 uF C13 100V .0022 uF CCW CW 50K L P7 DSP MODE 1 2 3 4 5 6 7 8 RC2 ECONO-CON R14 10K D-GND J10 .187 TAB C12 50V .1 uF 1/4W 5% R16 100K CCW CW 50K L P2 LOW R19 1K R18 1K R20 15K C15 0 JUMPER C16 0 JUMPER R13 10K C25 50V .1 uF 6 5 7 TLO-72 CCW CW P9 50K L LEVEL R41 100K R44 10K C36 100V 0.01 R38 470 R39 1.5K 1W OC4 VTL-5C7 100V 10 uF C18 D6 1N914 D7 1N914 D3 1N914 D8 1N914 G S D Q1 J175 R37 470 R40 33 R23 1M R15 47K D9 1N914 C17 200V 100 pF CCW CW P8 10K L BLUE AC NEUTRAL J9 WHITE BLUE GRAY/WHT BLACK BLACK AC VOLTS TO SWITCH D-GND C30 100V .1 uF BROWN D-GND C29 100V .1 uF C28 100V .1 uF 50V 2.2 uF C31 J9 .187 TAB C35 250V UL .0033 23-926-02 FC2 23-926-02 FC1 GRN RED REDBLUE J7 .187 TAB J6 .187 TAB J8 .187 TAB 2 A SB F1 J14 J13 .187 TAB J12 .187 TAB J11 .187 TAB J16 .250 TAB .250 TAB J15 MASTER FILE WITH ALL PARTS D4 RED D17 1N5401 R33 1.5K 25V 4700 uF C32 25V 4700 uF C26 D16 1N5401 D14 1N5401 D15 1N5401 R42 220 R43 220 C24 50V .1 uF R45 100 R46 100 35V 100 uF C34 35V 100 uF C33 D18 1N4744 D19 1N4744 REM REM RadioFans.CN 收音机爱 好者资料库