Crate_BT-50_Service_Manual电路图.pdf

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1、2007 LOUD Technologies Inc. All rights re served Amplifi er Assembly Final Assembly DrawingsPAGE 1 BT50 RadioFans.CN 收音机爱好者资料库 2007 LOUD Technologies Inc. All rights re served Amplifi er Assembly Final Assembly DrawingsPAGE 2 BT50 RadioFans.CN 收音机爱好者资料库 2007 LOUD Technologies Inc. All rights re se

2、rvedBT50Ca Parts ListPAGE 1 BT50 RadioFans.CN 收音机爱好者资料库 2007 LOUD Technologies Inc. All rights re servedBT50Ca Parts ListPAGE 2 BT50 2007 LOUD Technologies Inc. All rights re servedBT50Ca Parts ListPAGE 3 BT50 2007 LOUD Technologies Inc. All rights re servedBT50Ca Parts ListPAGE 4 BT50 2007 LOUD Te

3、chnologies Inc. All rights re servedChassis Assembly Final Assembly DrawingsPAGE 1 BT50 2007 LOUD Technologies Inc. All rights re servedChassis Assembly Final Assembly DrawingsPAGE 2 BT50 Transferred September 2007BT50 Common Failure Modes LOUD Technologies Inc. 16220 Wood-Red Road NE Woodinville, W

4、A 98072 Phone: (800) 258-6883 (425) 487-4333 A-1 COMMON FAILURE MODES 1. INTERMITTENT OR NO OUTPUT A. CHECK FOR POOR SOLDER CONNECTIONS ON JACKS B. CHECK FOR POOR SOLDER CONNECTIONS ON POTENTIOMETERS C. MAKE CONTACTS ON JACKS ARE CLEAN AND SECURE. 2007 LOUD Technologies Inc. All rights re served Bas

5、s Amplifi er Parts ListPAGE 1 BT50 PARTS LIST ITEMPARTDESCRIPTIONQTY REQDU/M NUMBERBT50CaBT50CaJBT50CaMBT50CaUBT50CaW 108-752-01BT50a COVERED CAB11111EA 216-703-01BT50a CHASSIS ASSY1EA 216-703-03BT50aM CHASSIS ASSY1EA 216-703-23BT50aJ CHASSIS ASSY1EA 216-703-30BT50aW CHASSIS ASSY1EA 216-703-40BT50aU

6、 CHASSIS ASSY1EA 330-424-514-24 X 1/2 PPH TYPE A66666EA 430-612-016-18 X 1/2 PPH AT/S1616161616EA 530-612-106-18 X 3/4 PHIL OVAL66666EA 630-819-10#9-10 X 1PPH LO ROOT88888EA 730-819-51#8 X 1-3/4 PH OVAL44444EA 830-830-21#8-32 X 1-1/2 PH OVAL66666EA 930-832-018-32 TNUT 1/4LBR 3PRG22222EA 1030-835-71#

7、8 FLANGED S/STEEL88888EA 1147-350-02SERIAL NUMBER LABEL11111EA 1351-111-01PENN 9 STRAP HANDLE11111EA 1451-111-02PENN BLACK PLASTIC22222EA 1551-131-01BT50a HEX PERF GRILL11111EA 1668-058-01LOGO11111EA 1768-223-01TUBE FLANGE W/2 PORT22222EA 1868-547-01SM FRT CORNER44444EA 1968-547-51SM REAR CORNER4444

8、4EA 2079-001-01TUNER MODULE11111EA 2186-176-0812, 8OHM, 50W, 1.5VC11111EA P115B148-202-BUTTON FOOTSWITCH11111EA P247-078-01GENERIC LTD WAR CARD11111EA P347-350-03SHIP CARTON LABEL11111EA P447-376-01BT25/BT50 OWNER MANUAL11111EA P547-602-01CRATE-GENERIC HANG TAG11111EA P647-906-03FOOTSWITCH ENCLOSED1

9、1111EA P747-906-01EXPRT W/O LINE CRD LBL11EA P747-906-02EXPRT W/ LINE CRD LBL1EA P864-200-01FC-200 CORNER PADS88888EA P918-761-06BT50 SHIP CARTON11111EA P1068-704-0136X40 1 MIL HD POLYBAG11111EA P1118-919-70BT50 POP BOX11111EA P1247-721-01BT50 AMP TOPPER11111EA Section 1 - Page 1 of 1 BOM captured o

10、n 5/3/05 ECO/ECR No.Rev.DescriptionChngd by:DateApprvd byDate Rev.DescriptionECO/ECR No.Chngd by:DateApprvd byDate AInitial Issue7/18/03JRC THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO ST. LOUIS MUSIC, INC. Signatures:Date: Drawn: Checked: Released: Tolerance:Drawing Size: Drawing Typ

11、e: Class Code: Scale:Sheet First Used On: Drawing Title: Drawing No: 11880 Borman Drive, St. Louis, MO 63146 00-560-PL Bass Amplifier B7/29/03SHIP CARTON CORR.R01037JRC C4/19/04DELETED SPECIFIC LABELSR01231DDA D7/5/04ADDED TOPPERR01288DDG 04/11/05Control IssueMJK 15/3/05Added M config.N01798DDG 2007

12、 LOUD Technologies Inc. All rights re served Bass Amplifi er Parts ListPAGE 2 BT50 SYM NS NS NS NS NS NS NS d byDate Rev.DescriptionECO/ECR No.Chng d by:DateAppr vd byDate AInitial Issue7/18/03JRC THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO ST. LOUIS MUSIC, INC. Signatures:Date: Draw

13、n: Checked: Released: Tolerance:Drawing Size: Drawing Type: Class Code: Scale:Sheet First Used On: Drawing Title: Drawing No: 11880 Borman Drive, St. Louis, MO 63146 00-560-PL Bass Amplifier B7/29/03SHIP CARTON CORR.R01037JRC C4/19/04DELETED SPECIFIC LABELSR01231DDA 2007 LOUD Technologies Inc. All r

14、ights re servedChassis Assembly Parts ListPAGE 1 BT50 PARTS LIST ITEMPARTDESCRIPTIONQTY REQDU/MSYM NUMBER16-703-0116-703-0216-703-0316-703-0416-703-2316-703-2416-703-3016-703-31 107-848-01BT50a PWA1111EA 107-848-02BT25a PWA1111EA 215-371-01BT50a SCREENED CHASSIS111EA 215-371-02BT25a SCREENED CHASSIS

15、111EA 215-371-03BT50 CHASSIS M VERS1EA 215-371-04BT25 CHASSIS M VERS1EA 317-603-01MAINS CONNECTOR,SNAPIN11EA 423-301-051A 250V 3AG SB GLASS-1-1EA 423-312-013AG FUSE-T2A250V GLASS-1-1EA 423-508-05IEC FUSE-T.8A250V CERM11EA 423-516-05IEC FUSE-T1.6A250V CER1EA 423-525-052.5A/250V IEC1271EA 630-301-01CL

16、IFF JACK N/C NUTSET44444444EA 730-440-08#4 X 1/4 IN PLASTITE11111111EA 830-631-01#6 INT LOCKW. ZINC PLT11111111EA 930-638-526-32 X 3/8 PPH TFS W/66666666EA 1030-639-536-32 X 9/16 PPH MS W/11111111EA 1130-650-536-32 X 1/2 PPH MS11111111EA 1230-700-016-32 HEX KEPNUT ASSY11111111EA 1330-775-01M7 X .75

17、DC HEX NUT1010101010101010EA 1430-827-01#8-32 NUT RETAINER44444444EA 1530-834-018-32 HEX KEPNUT ASSY44444444EA 1630-835-018 SAE FLATWASH ZINC51515151EA 1745-754-01BT SERIES GREEN KNOB1010101010101010EA 1847-000-01FUSE REPL/GND LABL SET11111111EA 2147-713-01T1.6A 250V SM Label1EA 2147-713-03T1A 250V

18、SM LABEL CE11EA 2147-713-04T2A 250V SM LABEL CE11EA 2147-713-07T.8A 250V SM LABEL CE11EA 2147-713-10T2.5 FUSE LABEL 250V1EA 2268-001-014 CABLE TIE 18LBS22222222EA 2385-100-01BLACK STRAIN RELIEF111111EA 2485-102-01BLACK STRAIN RELIEF11111111EA 2588-212-0110AMP SMALL AC SWITCH11111111EA 2694-119-01GX-

19、30M 30W TRANSFORMER11EA 2694-119-40EXPORT 230/240V 30W11EA 2794-127-0125W X 2 4 OHMS11EA 2794-127-40BX-50 EXPORT PWR XFMR11EA 2897-123-213A ICL W/.187F FASTONS1111EA 2997-136-01B-20XL SPK HNS11111111EA Section 1 - Page 1 of 2 BOM captured on 4/27/05 ECO/ECR No.Rev.DescriptionChngd by:DateApprvd byDa

20、te Rev.DescriptionECO/ECR No.Chngd by:DateApprvd byDate AInitial Issue7/3/03JRC THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO ST. LOUIS MUSIC, INC. Signatures:Date: Drawn: Checked: Released: Tolerance:Drawing Size: Drawing Type: Class Code: Scale:Sheet First Used On: Drawing Title: Dra

21、wing No: 11880 Borman Drive, St. Louis, MO 63146 16-703-PL Chassis Assy B3/10/04ADDED CAGE NUTSR01187DDA C4/19/04DELETED SPECIFIC LABELSR01231DDA 06/17/04Control IssuePJF 14/27/05ADDED -03 when this button is in the out position, the Clean channel is always active, and the footswitch turns the Disto

22、rtion channel on and off, allowing you a blend of both channels. 6. LEVEL:Use this control to adjust the output level of the Clean channel, and as part of the Octave level con- trol (see #11). NOTE:The BT25/BT50 employs an internal noise gate to keep residual noise to a minimum. Regardless of which

23、channel is selected, the Clean channels Level control (#6) must be turned up above “0” in order for the noise gate to trigger. 7. LOW:Use this control to adjust the low frequency output of the Clean channel. 8. LOW MID:Use this control to adjust the lower-midrange frequency output of the Clean chann

24、el. 9. HIGHMID:Use this control to adjust the upper-midrange frequency output of the Clean channel. 10. HIGH:Use this control to adjust the high frequency output of the Clean channel. 11. OCTAVE:The BT25/BT50 features internal circuitry which creates a second signal which is one octave lower than th

25、e input signal. Use this control in conjunction with the Clean channels Level control (#6) to adjust the level of the octave signal. 12. MASTER:Use this control to adjust the overall output level of the amplifier. 12345678 The Front Panel: BT25/BT50Bass Amplifier 5 13. CDINPUT: Use these RCAjacks to

26、 connect the line level (or headphones) output of a CD player, tape deck or rhythm machine to the amplifier. The signal level from these jacks is adjusted by the Master control (#12). If the signal from the source connected to these jacks is too strong, use the output level control on the source to

27、adjust the signal to obtain the proper level for a good mix. 14. HEADPHONES: Use this jack to listen to the amplifier through a pair of stereo headphones. The internal speaker is disconnected when the headphones jack is used. CAUTION: To avoid possible damage to your hearing, do not use head- phones

28、 for extended periods of time at extremely loud listening levels. 15. POWER: Use this switch to turn the amplifier on and off. The adjacent LED illuminates when the amplifi- er is turned on. 16. ELECTRONICTUNER (top panel): This active electronic tuner is on whenever the amplifier is turned on, allo

29、wing you constant, “real-time” tuning. The tuner is fully chromatic use the flat and sharp indicators until the LED between them illuminates, indicating proper tuning. The Rear Panel (not shown): 17. ACLINECORD: The grounded power cord should only be plugged into a grounded power outlet that meets a

30、ll applicable electrical codes and is compatible with the voltage, power, and frequency requirements stated on the rear panel. Do not attempt to defeat the safety ground connection. 18. FOOTSWITCH:Connect a two-button footswitch (such as the Crate CFP-2) here for remote control of the channel select

31、ion/“blend” (see #5) and octave on/off. (When the Channel Switch #5 is depressed, the footswitch switches between the Clean channel and the Distortion channel; when the switch is in the out posi- tion, the Clean channel is always active, and the footswitch turns the Distortion channel on and off, al

32、lowing you a blend of both channels.) 19. EXTERNALSPEAKER: Use this jack to connect the amplifier to an external speaker cabinet (BT25 = 4 ohms minimum, BT50 = 8 ohms minimum). The internal speaker is disconnected when the external speaker jack is used. 9101112131415 6 Suggested Starting Settings: B

33、T25/BT50Bass Amplifier Rock: OUT Jazz: OUT Country: OUT Funk: OUT Solo Fuzz: IN Super Fat Fuzz: IN * * * * * * BT25/BT50Bass Amplifier 7 System Block Diagram: BUFFER INPUT LEVEL LOWLOW MID HIGH MID HIGH CHANNEL SWITCH FOOT SWITCH EQ NOISE GATE GAIN DISTORTION LEVEL TUNER A BC D EF G SHAPE LEVEL OCTA

34、VE MASTER EXTERNAL SPEAKER HEAD PHONES POWER AMP SPEAKER ATTENUATOR CD INPUT 2003 ST. LOUIS MUSIC, 1400 FERGUSON, ST. LOUIS, MO. 63133 47-376-01 012904 BT25/BT50Bass Amplifier BT25BT50 Output Power Rating25W RMS 2% THD, 4, 120 VAC50W RMS 2% THD, 4, 120 VAC GainDistortion Channel100dB104dB Clean Chan

35、nel60dB63dB CD Inputs33dB37dB Tone RangeLow21dB 50Hz21dB 50Hz Lo Mid23dB 150Hz23dB 150Hz Hi Mid18dB 1kHz18dB 1kHz High34dB 10kHz34dB 10kHz Signal to Noise Ratio75dB75dB Input Impedance220k ohms220k ohms Maximum Signal Accepted15 volts peak-to-peak15 volts peak-to-peak Input Power Requirements120 VAC

36、, 60Hz, 45VA120 VAC, 60Hz, 85VA 100/115VAC, 50/60Hz, 45VA100/115VAC, 50/60Hz, 85VA 230VAC, 50/60Hz, 45VA230VAC, 50/60Hz, 85VA Internal SpeakerSize10”12” TypeCrate CustomCrate Custom Magnet30 oz.30 oz. Voice Coil1”1.5” RMS Rating30 watts50 watts Impedance4 ohms8 ohms Size18” H x 18” W x 12-1/2” D21” H x 18” W x 14” D Weight37 lbs46 lbs BT25/BT50 Technical Specifications: Specifications subject to change without notice