罗兰Roland-Jupiter-4-Service-Manual维修服务手册说明书含电器原理图

FEB.23.1981JP-4JP-4 SERVICE NOTESSecond EdittionSPECIFICATIONS·KEYBOARD·CONTROLLER(49-keys,4 octaves,C scale)PORTAMENTO (1 sec/8va.)..1·SYNTHESIZER MODULESTRANSPOSE INORMAL.1 Oct DOWNI 1VCO(VOLTAGE CONTROLLEDFIRST READVCO:over±IOctOSCILLATOR)PP.12-2&VCF over+2 Oct.(RESONANCE PITCH)VCO RANGE 116'.8'.4VCA:ower±12dBPUL SE WIDTH (50%.40%.20%10%116-2INFORMATION。TUNING(±50cent.±1%).，-1VCF(VOLTAGE CONTROLLEDFILTER)ON·CONNECTION JACKSHPE CUT OFF (40HZ 5KHzOUTPUT JACKKYBD F0LL0W4i0,40%.704.,100.1DESIGN CHANGESMONO,STEREO).2·LFO(LOW FREQUENCYOUTPUT LEVEL SELECTION SWITCHIAVERAGE OdB at position H)OSCILLATOR)HEADPHONE JACKLFO RATE (OVER O 1 Hz BOHzI(stereol.·ENVELOPE GENERATOREXTERNAL CONTROL JACK(ENVELOPE GENERATOR)for theDAMPER (DP-1).VCF.(FV-2)VCF.VCAEXP.(FV-2:0--30 dB)ATTACK TIME (0.6 ms-3 Sec)EXTERNAL CLOCK [OFF:ov/on min.DECAY TIME (14 ms 10 Sec)+1V pulselSUSTAIN LEVEL (0.100%1POWER REQUIREMENTS........30wRELEASE TIME (14 ms 10 Sec)OVERALL·TRIGGERS1ZE·····946w)×410(D)×179H)mmTRIGGER RATE (1Hz -25 Hz)NET WEIGHT…19%R·DELAY/BENDACCESSORIES.2 5m hookup cords:2DELAY TIME 10-10 Sec)1SwitchSDG5PPanel No.218GKeyboard Ass'y(001-156)(072-218G)】SK-191AKnob No.56Knob No.81(016-056)(016-081)Knobs No.57Knob No.33Pot.(016-057)(016-033)VM1OAK15 100KBCabinet Ass'y(028-1078)(081-108H)ButtonsNo.86RedNo.8Gray(016-008)(016-086)No.87Green（016-087No.81Black016-081)No.88Ye11ow(016-088Panel No.219GNo.85White(016-085No.89Blue(016-089(072-219G)1Printed in Japan AE-2