Gallien-Krueger 200MB Manual de usuario

Service Manual

200MB

Table of Contents

Operating Instructions 3

Turn On / Calibration Procedure 6

Sc ematics 9

Engineering C ange Orders (ECOs) 18

Bill of Materials 19

200MB/RCB T/O Procedure Rev.B-3/7/88

1) Inspectboard.

2) Connectmains.

3) Observethefollowing:

A) noload E)volume on0 I) chorusdepth on0

B) variac at 0 F) master on 0 J) chorus rate on 0

C) trimpotshalfway G) switchesoutK) speaker on

D) tones on 5 H) sustain on0

4) Graduallyadjustvariac to 25Vrms.

U20/P4= -1.5V (+or-)-.5V. U20/P8= 3.2V (+or-) -.5V.

Regulated supplies = -.5 V (+or-) .5V./ 7.1V (+or-) -.5V.

5) Graduallyadjustvariacto70Vrmswhilelisteningto the speakerand watchingvariac (ACamps)

andscope. Outputshould go–8V then +10V, motora little andsettle at0 between50-60Vrms.

Regulated supplies = -14.3V (+or-) .5V/ 14.2V (+or-) .5V.

6) Adjustvariac to120Vrms andturn speakeroff.Supply voltage(+or-)46.5V (+or -).5V.

7) Set bias. Adjust R207 to get 5mV across R197, R208 ( most pos. of the two), and R223, R224

(themost neg. ofthe two).

8) Setthefollowing:masteron10.

9) Connectsineinput(400Hz 50mVrms)–26 dB.

10) Compressortest.

A) Volume on10.

B) Sustain on 0. U2/P6= 700mVp-p. U4/P7= 2.3Vp-p.

C) Engage compressor. U4/P7=1.2Vp-p.

D) Gradually adjust sustainto10. U4/P7shouldincrease to1.7Vp-p.

E) Disengage compressor andcontinue.

11) Limiteradjustment.Adjust R174togeta flatresponseatU21/P2 (comparefig.)

12) Set thefollowing:volume on 0;4ohm load.

13) SlowlyturnupvolumejustuntillimiterLEDbeginstolight.Atthispoint,output shouldbeatfull

power=20Vrms.

14) Currentlimiter test.Changetoa2 ohm load.Outputshouldbea cleansine wavewithoutclipping

and= 12Vrms (+or-) .5Vrms.

15) Turnmasterup anddownto checkifit works properly.

16) Setthefollowing: volume and masteron10,noload.

17) Check direct out (J5) pins 2 and 3 = 550mVrms (1.5Vp-p).

18) Checkbalance outleft( J8)and right (J9).Both should =5.5Vrmsin stereoandmono modeat pins

2 and 3.

19) Check send (J7). 1.7Vp-p, clean sine wave. Probe at R229.

20) Check headphonejack (J3).Tip = 3.4Vrms /Ring =3.4Vrms or13Vp-p clipped.

21) Test return.

A) Plug input intoreturn(6). (400Hz 50mVrms sine) –26.0dB.Output = 4Vrms.

B) Lineout (J10)= 80mVrms.

22) Changeto square signalatinput (400Hz –26.0dB).

23) Testtonesandfilters and comparefigures.

24) Chorustest.

Note:Triggeris onthe channel, thescopeprobe ison,and connecttoD.0 (J5)@1V/div. Thiswillmake it

possibletomakemeasurementswithouthavingtriggerproblems. An externaltrigger could alsobe used.

A) Volume at 9o’clock

B) Master at 10.

C) Tones on5.

D) Engagechorus.

E) Rate 0/ Depth 0. Deviation = 1.3 sec. / Rate = 1.5 sec.

F) Rate0/ Depth10. Deviation= 5.0sec.

G) Rate 10/ Depth 10. Rate = .25 sec.

H) Disengagechorus.

25) Balanceouttest. Sineinput (400Hz50mVrms) –26.0dB.

A) Volumeon5.

B) Master on 10.

C) Tones on5.Balance out leftpins2and 3andbalanceout rightpinsshouldlook different.Left

shouldswellup and downtoamin. and max.value.Rightshould do thesame,however

oscillaterightandleft.

D) Engagechorus.

E) Stereo switch out.

F) Pushinstereoswitch(monomode).Signalonleftandrightshouldlooksimilar, swelling upand

down.

G) Chorus off.

26) Checkspeaker cut-off switch.

27) Disconnectinput.

28) Proceedwith noiseand tap test.

A) Controls on 10, switch out = noise <60mVrms.

B) Controls on 10, contour in = noise <80mVrms.

C) Controlson10, comp.in, sustain0 = noise < 50mVrms.

D) Controls on 10,comp. in, sustain10= noise<250mVrms.

E) Controls on 10,comp. in, sustain10 = noise<300mVrms.

F) Contour in, chorus in = noise< 40mVrms.

G) Contour in, master on 0= noise< 2.5mVrms.

Noiseshouldbeclean withoutpopping orcracking.

Otros manuales para 200MB

Este manual sirve para los siguientes modelos

Tabla de contenidos

Otros manuales de Amplificador de Gallien-Krueger

Gallien-Krueger

Gallien-Krueger MBCOMBO Manual de usuario

Gallien-Krueger

Gallien-Krueger MB FUSION Manual de usuario

Gallien-Krueger

Gallien-Krueger Fusion 550 Manual de usuario

Gallien-Krueger

Gallien-Krueger Legacy Series Manual de usuario

Gallien-Krueger

Gallien-Krueger 400RB series Manual de usuario

Gallien-Krueger

Gallien-Krueger MB2 500 Manual de usuario

Gallien-Krueger

Gallien-Krueger 400RB series Manual de usuario

Gallien-Krueger

Gallien-Krueger 700RB series Manual de usuario

Gallien-Krueger

Gallien-Krueger MB 800 Manual de usuario

Gallien-Krueger

Gallien-Krueger Microbass MB150S Manual de usuario

Gallien-Krueger

Gallien-Krueger ML Series Manual de usuario

Gallien-Krueger

Gallien-Krueger PLEX Manual de instrucciones

Gallien-Krueger

Gallien-Krueger 2001RB Manual de usuario

Gallien-Krueger

Gallien-Krueger 1001RB-II Manual de usuario

Gallien-Krueger

Gallien-Krueger MB115 Manual de usuario

Gallien-Krueger

Gallien-Krueger MB115 Manual de usuario

Gallien-Krueger

Gallien-Krueger MB 108 Combo Manual de usuario

Gallien-Krueger

Gallien-Krueger Fusion 550 Manual de usuario

Gallien-Krueger

Gallien-Krueger 700RB-II Manual de usuario

Gallien-Krueger

Gallien-Krueger 2001RB Manual de usuario

Gallien-Krueger

Gallien-Krueger RBS Series Manual de usuario

Gallien-Krueger

Gallien-Krueger 1001RB Manual de usuario

Gallien-Krueger

Gallien-Krueger 200MK Manual de usuario

Gallien-Krueger

Gallien-Krueger Microbass MB150E/112 Manual de usuario

Manuales populares de Amplificador de otras marcas

ASTRO

ASTRO HVO V40 P Manual de usuario

Marantz

Marantz SUPERSCOPE BLA-545 Instrucciones de montaje

NAD

NAD CI980 Manual de usuario

Technics

Technics SE-CH770 Manual de usuario

Harman Kardon

Harman Kardon HK6300 Manual de usuario

NAD

NAD T975 Manual de usuario

McIntosh

McIntosh MA6850 Manual de usuario

Electro-Harmonix

Electro-Harmonix ENGLISH MUFF’N Manual de usuario

Viatron

Viatron Autrix Manual de usuario

GME

GME GA9800 Manual de usuario

Atlas

Atlas CP700 Manual de usuario

Roland

Roland KC-1000 Manual de usuario

Pyle

Pyle PFMRA350BW Manual de usuario

Advantage

Advantage S-250 Manual de usuario

IRT Electronics

IRT Electronics DVA-3007 Manual de usuario

Dimavery

Dimavery BA-100 Series Manual de usuario

Sony

Sony XM-S400D Manual de usuario

Schertler

Schertler ROY X Manual de usuario