Gallien-krueger_200MK,_200RK_Service_Manual电路图.pdf
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1、? ? RadioFans.CN 收音机爱 好者资料库 ? ? ? ?!?# $?!?%$?&?( )? RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 200MK / 200RK TURN-ON PROCEDURE 2/1/88 Rev. 9/28.99-SW 1)Inspect board. 2)Observe the following: variac at 0, no load, speaker load on, cabinet speaker off, tones on 10, master on 0, R5 clockwise, R2
2、91 Counter- clockwise, all switches out. 3)Gradually adjust variac to 20Vrms. U23/8= 3.2V +or - .5V, U23/4= 1.3V +or - .5V. Reg. Supplies 4V +or - .5V ,-2.6V +or - .5V. 4)Gradually adjust variac to 70Vrms. Watch variac (amps), scope and listen to speaker. Amp should not draw current. Output will go
3、4V, then 6V, then snap to 0 between 30-40Vrms. U23/8= 11.5V +or - .5V, U23/4= -11.5V +or - .5V. Reg. Supplies 14.5V +or - .5V ,-14.5V +or - .5V. 5)Continue to adjust to 120Vrms. Supplies + or- 45V + or - .5V. 6)Turn speaker load off. 7)Adjust bias. Adjust R224 to get a 5mV bias across R214, 225 (mos
4、t positive of the two), and R240, 241 (most negative of the two). 8) Set the following: 400Hz sine wave 500mVrms at piano input, master 10, limit switch on. 9)Limiter adjust. Adjust R191A to get a flat response at U24/2. Compare to limiter response figure. Turn off. 10) Set the following: master 0,
5、4 ohm load. 11) Full power, limiter, and current limiter test. Gradually turn up master until clipping. Output = 20Vrms and clip evenly. Turn up master to 10. Output should hit the rails hard. Engage limiter. Output should swell down from heavy clipping then swell up to full power without clipping o
6、r bouncing. Change to 2 ohm load- output should be a clean sine wave without clipping and = 12Vrms. Change to no load and disengage limiter. 12) Set master to 5. 13) Output should = 35Vrms. Plug into Synth. 1, then 2. Output should remain the same for all 3 inputs. 14) Plug into Monitor In. Output s
7、hould = 27Vrms. 15) Plug back into Piano Input and measure direct outs = 8Vp-p. 16) Check line out. Should be clean sine wave and = 750mVrms. 17) Check headphones. Should have slight clipping with 15Vp-p. 18) Compressor test. Engage compressor. Output will attenuate and = 19Vrms without clipping. Tu
8、rn up input signal 10dB. Output = 33Vrms without clipping. Turn signal down 20dB. Output = 10Vrms without clipping. Disengage compressor. 19) Chorus adjust. Engage chorus. Amplitude will vary up and down at output. Check direct out in stereo mode. D.O.s should look different but at same frequency. I
9、n mono mode, D.Os should look same. Repeat (18)- (compressor test) for Synth. 1 and Synth. 2 inputs. 20) Echo adjust. Engage echo. Adjust R84 to get 400mVrms at U10/6. 21) Change the following: square wave input 400Hz 500mVp-p, tones at 5, master at 9 oclock position. 22) Check tone controls for eac
10、h input and compare to figures. 23) Engage echo and compare to echo figure for each input channel. 24) Turn on speaker cabinet and do quick audio test with echo on, then chorus on for each input channel. 25) Noise and tap test. Tones 10, Master 10, switches in noise 20mVrms. Tones 10, Master 0, swit
11、ches out noise 2.2mVrms Noise should be clean without popping or crackling. Sharply tap the amp on the bench a few times to make sure nothing fails. Ready For Burn-in 200MK INDENTED BILL OF MATERIALS NOTE:Level 1 refers to main assembly parts. Level 2 refers to board level components. Main assembly
12、numbers are in bold face, while commonly needed parts are italicized. LVLPART#DESCRIPTIONQTYREF. DESIG. 1010-0012-0MPSA06 NPN 80V 500MA TO-921 1011-0023-0TIP29C NPN 100V 1A TO-220 FP1 1011-1035-0TIP30C PNP 100V 1A TO-2201 1012-0085-0TIP-35CFP NPN 100V 25A TO2182 1012-1086-0TIP 36CFP,PNP,100V,25A,TO-
13、218,PECOR2 1025-0116-0RED LED,1.5MCD,120 DEG,T-11 1080-0488-0X-FORMER BACKLINE,DOMESTIC1 1082-0039-0SPEAKER,12,80W,Z=8,PYLE FOAM EDGE1 1082-0045-0SPEAKER,3,Z=16,PYLE TWEETER1 1091-0003-0FUSE, 3A,125V,1/4X1 1/4,SLB1 2799-TEST-0TRY OUT0 1092-0045-0XLR,MALE,X70101 LUGS2 1092-0064-0Q-CON, .25 TAB,18-22G
14、A,INSULATED8 1093-0014-0RECEPTICAL AC,Q-TERM1 1093-0032-0HOUSING,3X.156,FEMALE 22GA,LOCK2 1094-0013-0HOLDER,FUSE,1/4 X 1 1/4,Q-TERM1 1094-0018-0SOLDER LUG,#41 1095-0005-0POWER CORD,117V PLUG,DETACH1 1100-0005-0WASHER,RUBBER,1/8ID X 3/8OD X 1/8T4 1100-0027-0BUTTON,ROUND BLACK CAP - PUSH SWITCH10 1100
15、-0030-0BUTTON,RECT BLACK CAP - PUSH SWITCH1 1100-0031-0WASHER,#4,RECT,TO-220 MGT2 1100-0037-0HEAT CLIP,TO-981 1100-0038-0BUMPER,ROUND RUBBER,5/8X5/162 1100-0072-0GROMMET,.187 I.D.4 1100-0076-0FOOT,RUBBER,ROUND,5/8DIA. X 5/84 1100-0080-0HANDLE RUBBER,101 1100-0098-0KNOB,GRAY,6X15MM SPLINE SHAFT7 1100
16、-0108-0X-FORMER BRACKET,FOR BACKLINE4 LVLPART#DESCRIPTIONQTYREF. DESIG. 1111-0061-0BOLT 4-40 3/8 PHP CAD4 1111-0081-0BOLT 4-40 1/2 PHP CAD9 1111-3041-0SCREW 4AB 1/4 PHP CAD4 1111-4080-0SCREW 4AB 1/2 FHP 82 B.O.8 1111-6001-0NUT 4-40 KEP SMALL3 1111-6011-0NUT 4-40 HEX SMALL CAD5 1111-7011-0WASHER #4 S
17、PLIT4 1112-0051-0BOLT 6-32 5/16 PHP CAD4 1112-1050-0BOLT 6-32 5/16 FHP 82 B.O.4 1112-1100-0BOLT 6-32 5/8 FHP 82 B.O.4 1112-4080-0SCREW 6AB 1/2 FHP 82 B.O.4 1112-6001-0NUT 6-32 KEP LARG SIZE CAD1 1112-7001-0WASHER #6 FLAT CAD4 1112-9060-0TR-BOLT 6-32 3/8 FHP B.O.38 1113-0080-0BOLT 8-32 1/2 PHP B.O.4
18、1113-0080-0BOLT 8-32 1/2 PHP B.O.4 1113-0221-0BOLT 8-32 1 3/4 PHP CAD4 1113-6011-0NUT 8-32 KEP CAD4 1113-6011-0NUT 8-32 KEP CAD8 1114-0080-0BOLT 10-32 1/2 PHP B.O.2 1114-7011-0WASHER #10 FLAT CAD4 1115-7005-0WASHER 3/8 FIBRE FLAT3 1115-7021-0WASHER 3/8 INTERNAL CAD5 1130-0000-0OVERLAY,MICRO BASS GRI
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