Roland VK-77 Service Notes Download Page 28

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Apr,1999

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PEDAL BOARD ASSY (71232267)

Summary of Contents for VK-77

Page 1: ...ER PEDAL DEMO VK 77 Combo Organ VK 77 Keyboard Upper 61 keys with velocity and aftertouch Lower 61 keys with velocity 61 61 Sound Generator Virtual ToneWheel Method Part Upper Organ Lower Organ Pedal...

Page 2: ...REVERB OVERDRIVE ORGAN CONTROL BENDER MODULATION LEVER POWER Display 16 characters 2 lines backlit LCD 16 2 LCD Connectors PHONES Jack MIX OUT Jacks L MONO R MIX OUT Jacks L R XLR 3 32 type ORGAN OUT...

Page 3: ...RD ASSY CB 71343523 D S KEYTOP SX1H BLK 00900189 TACT SWITCH EVQ11A H 5 0 01340290 T S KEYTOP MD1H MWG 01018690 TACT SWITCH SKPDAC 250G 13169727 LED SLR 56VCT32 01348623 LOWER H BAR ASSY 71231001 UPPE...

Page 4: ...0945 REGIST R BOARD ASSY 00127378 LCD RCM7044U 1A 71231034 PS ASSY 71231078 INLET BOARD ASSY 01450212 POWER TRANSFORMER 01450212 UNIVERSAL 71124445 MAIN BOARD ASSY EXG 71124490 VOLUME BOARD ASSY 71124...

Page 5: ...nding wire between the rear panel and analog board if removed must be reconnected as they were Terminate one end at the center of the unit and at the mark B on the analog board 1 00900467 PWB HOLDER 8...

Page 6: ...SK 961 F KEYBOARD ASSY NOTE See KEYBOARD PARTS LIST for details PWB ASSY 71124489 MIDI BOARD ASSY NOTE MIDI BOARD ASSY includes the following parts MIDI BOARD ASSY 00890390 RIBBON CABLE 10x100 P2 0 M...

Page 7: ...MAB POTENTIOMETER 01233178 EVJ 069 F01 B14 12M M ROTARY POTENTIOMETER VR1 2 on PCB 01237101 RS40D113A 4PIN SLIDE VR POTENTIOMETER VR1 10 on LHB VR1 11 on UHB 01673756 9M M ROTARY POT RK0971520 VR2 on...

Page 8: ...40013067 M3X8 PAN SEMS FE ZC SCREW 40126267 W SW M4 16 BZC PAN MACHINE SCREW 40128067 M4X18X1 6 FECM WASHER M4x18x1 6 40128512 B TIGHT WH FE BZC W 11 SCREW 4x25x20MM 40233012 2 6X8MM BINDING TAPTITE F...

Page 9: ...of controls Controls 29 H BAR 21 REVERB OVERDRIVE BENDER MODULATION AFTER TOUCH EXPRESSION PEDAL CONTROL PEDAL 1 CONTROL PEDAL 2 When a control is operated across its full travel range the LCD shows...

Page 10: ...ORGAN STATIONARY No 3 ORCHESTRAL L No 4 GND No 5 GND No 6 POWER ON OFF CONTROL No 7 FAST CONTROL No 8 SLOW CONTROL No 9 NC No 10 ORCHESTRAL R No 11 24V IN No 1 No 2 No 3 No 10 No 6 No 7 No 8 DC5 30V...

Page 11: ...cts test Connect the headphones to the PHONES socket The LCD displays After approx 4 second of muting sine wave will be heard Check for unusal sounds or noises for approx 4 seconds until the LCD displ...

Page 12: ...LCD will display Factory Reset 5 Press the WRITE button The LCD will show To abort the procedure and exit the edit mode press the EXIT button twice or press the EDIT button skipping the step 6 below 6...

Page 13: ...7 has temporarily suspended operation Either wait until the system exclusive message has finished being thru ed or press EXIT to abort the Thru If the Thru is aborted the SYSTEM MIDI menu MIDI Thru se...

Page 14: ...Q Q R R R R S S S S T T T T U U U U 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 6 7 7 7 7 8 8 8 8 9 9 9 9 10 10 10 10 11 11 11 11 12 12 12 12 13 13 13 13 14 14 14 14 15 15 15 15 16 16 16 16 17 17 17...

Page 15: ...48 6 CN17 51048 6 CN21 51048 7 CN22 51048 7 CN24 51048 7 CN25 51048 7 CN32 52147 8 CN31 51048 8 W22 CN11 52147 10 CN8 51048 10 MIDI PEDAL JACK W27 CN5 53254 10 W26 CN2 IL S 5 INLET P S W12 W24 W3 HP 3...

Page 16: ...R R R S S S S T T T T U U U U 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 6 7 7 7 7 8 8 8 8 9 9 9 9 10 10 10 10 11 11 11 11 12 12 12 12 13 13 13 13 14 14 14 14 15 15 15 15 16 16 16 16 17 17 17 17 18...

Page 17: ...A 8 A 9 A 1 0 A 1 1 A 1 2 A 1 3 A 1 4 A 1 5 D 8 D 9 D 1 0 D 1 1 D 1 2 D 1 3 D 1 4 D 1 5 X R D X W R H X RO M C S A 1 6 A 1 7 X R S TA 1 8 2 7 3 6 4 5 R A 1 5 4 7 1 8 2 7 3 6 4 5 R A 1 6 4 7 1 8 2 7 3...

Page 18: ...3 7 A 1 2 3 8 A 1 1 3 9 A 1 0 4 0 A 9 4 1 A 8 4 2 A 7 4 A 6 5 A 5 6 A 4 7 A 3 8 A 2 9 A 1 1 0 A 0 1 1 D 1 5 3 1 B Y T E 3 3 C E 1 2 O E 1 4 D 1 4 2 9 D 1 3 2 7 D 1 2 2 5 D 1 1 2 2 D 1 0 2 0 D 9 1 8 D...

Page 19: ...B 9 WA B 8 WA B 7 WA B 6 WA B 5 WA B 4 WA B 2 2 V D D 2 0 V D D 4 0 V D D 6 0 V D D 8 0 V D D 1 0 0 V D D 1 2 0 V D D 1 4 0 V D D 1 6 0 V S S 1 V S S 1 0 V S S 3 0 V S S 4 1 V S S 5 0 V S S 5 9 V S S...

Page 20: ...Q Q R R R R S S S S T T T T U U U U 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 6 7 7 7 7 8 8 8 8 9 9 9 9 10 10 10 10 11 11 11 11 12 12 12 12 13 13 13 13 14 14 14 14 15 15 15 15 16 16 16 16 17 17 17...

Page 21: ...Q Q R R R R S S S S T T T T U U U U 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 6 7 7 7 7 8 8 8 8 9 9 9 9 10 10 10 10 11 11 11 11 12 12 12 12 13 13 13 13 14 14 14 14 15 15 15 15 16 16 16 16 17 17 17...

Page 22: ...Q R R R R S S S S T T T T U U U U 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 6 7 7 7 7 8 8 8 8 9 9 9 9 10 10 10 10 11 11 11 11 12 12 12 12 13 13 13 13 14 14 14 14 15 15 15 15 16 16 16 16 17 17 17 1...

Page 23: ...T U U U U 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 6 7 7 7 7 8 8 8 8 9 9 9 9 10 10 10 10 11 11 11 11 12 12 12 12 13 13 13 13 14 14 14 14 15 15 15 15 16 16 16 16 17 17 17 17 18 18 18 18 19 19 19...

Page 24: ...S S T T T T U U U U 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 6 7 7 7 7 8 8 8 8 9 9 9 9 10 10 10 10 11 11 11 11 12 12 12 12 13 13 13 13 14 14 14 14 15 15 15 15 16 16 16 16 17 17 17 17 18 18 18 18...

Page 25: ...S S S T T T T U U U U 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 6 7 7 7 7 8 8 8 8 9 9 9 9 10 10 10 10 11 11 11 11 12 12 12 12 13 13 13 13 14 14 14 14 15 15 15 15 16 16 16 16 17 17 17 17 18 18 18 1...

Page 26: ...U U U U 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 6 7 7 7 7 8 8 8 8 9 9 9 9 10 10 10 10 11 11 11 11 12 12 12 12 13 13 13 13 14 14 14 14 15 15 15 15 16 16 16 16 17 17 17 17 18 18 18 18 19 19 19 19...

Page 27: ...R R R S S S S T T T T U U U U 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 6 7 7 7 7 8 8 8 8 9 9 9 9 10 10 10 10 11 11 11 11 12 12 12 12 13 13 13 13 14 14 14 14 15 15 15 15 16 16 16 16 17 17 17 17 18...

Page 28: ...R R R S S S S T T T T U U U U 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 6 7 7 7 7 8 8 8 8 9 9 9 9 10 10 10 10 11 11 11 11 12 12 12 12 13 13 13 13 14 14 14 14 15 15 15 15 16 16 16 16 17 17 17 17 18...

Page 29: ...R R R S S S S T T T T U U U U 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 6 7 7 7 7 8 8 8 8 9 9 9 9 10 10 10 10 11 11 11 11 12 12 12 12 13 13 13 13 14 14 14 14 15 15 15 15 16 16 16 16 17 17 17 17 1...

Page 30: ...5 15 16 16 16 16 17 17 17 17 18 18 18 18 19 19 19 19 20 20 20 20 21 21 21 21 22 22 22 22 23 23 23 23 24 24 24 24 25 25 25 25 26 26 26 26 27 27 27 27 28 28 28 28 CIRCUIT BOARD MIDI BOARD ASSY 71124489...

Page 31: ...S S T T T T U U U U 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 6 7 7 7 7 8 8 8 8 9 9 9 9 10 10 10 10 11 11 11 11 12 12 12 12 13 13 13 13 14 14 14 14 15 15 15 15 16 16 16 16 17 17 17 17 18 18 18 18...

Page 32: ...R R S S S S T T T T U U U U 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 6 7 7 7 7 8 8 8 8 9 9 9 9 10 10 10 10 11 11 11 11 12 12 12 12 13 13 13 13 14 14 14 14 15 15 15 15 16 16 16 16 17 17 17 17 18...

Page 33: ...R R S S S S T T T T U U U U 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 6 7 7 7 7 8 8 8 8 9 9 9 9 10 10 10 10 11 11 11 11 12 12 12 12 13 13 13 13 14 14 14 14 15 15 15 15 16 16 16 16 17 17 17 17 18...

Page 34: ...R R S S S S T T T T U U U U 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 6 7 7 7 7 8 8 8 8 9 9 9 9 10 10 10 10 11 11 11 11 12 12 12 12 13 13 13 13 14 14 14 14 15 15 15 15 16 16 16 16 17 17 17 17 18...

Page 35: ...R R R R S S S S T T T T U U U U 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 6 7 7 7 7 8 8 8 8 9 9 9 9 10 10 10 10 11 11 11 11 12 12 12 12 13 13 13 13 14 14 14 14 15 15 15 15 16 16 16 16 17 17 17 17...

Page 36: ...14 14 15 15 15 15 16 16 16 16 17 17 17 17 18 18 18 18 19 19 19 19 20 20 20 20 21 21 21 21 22 22 22 22 23 23 23 23 24 24 24 24 25 25 25 25 26 26 26 26 27 27 27 27 28 28 28 28 CURCUIT BOARD PANEL A BOA...

Page 37: ...U 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 6 7 7 7 7 8 8 8 8 9 9 9 9 10 10 10 10 11 11 11 11 12 12 12 12 13 13 13 13 14 14 14 14 15 15 15 15 16 16 16 16 17 17 17 17 18 18 18 18 19 19 19 19 20 20...

Page 38: ...U U 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 6 7 7 7 7 8 8 8 8 9 9 9 9 10 10 10 10 11 11 11 11 12 12 12 12 13 13 13 13 14 14 14 14 15 15 15 15 16 16 16 16 17 17 17 17 18 18 18 18 19 19 19 19 20 2...

Page 39: ...U U U 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 6 7 7 7 7 8 8 8 8 9 9 9 9 10 10 10 10 11 11 11 11 12 12 12 12 13 13 13 13 14 14 14 14 15 15 15 15 16 16 16 16 17 17 17 17 18 18 18 18 19 19 19 19 20...

Page 40: ...3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 6 7 7 7 7 8 8 8 8 9 9 9 9 10 10 10 10 11 11 11 11 12 12 12 12 13 13 13 13 14 14 14 14 15 15 15 15 16 16 16 16 17 17 17 17 18 18 18 18 19 19 19 19 20 20 20 20 21 21 21 21...

Page 41: ...H 13P 1 70672823 SK 961 PWB LOW ASSY 1 LOWER KEYBOARD UPPER KEYBOARD 70672834 SK 961 PWB HI ASSY 1 LOWER KEYBOARD 70899323 SK 961 PWB HI AFF ASSY 1 UPPER KEYBOARD 40233545 3x10mm BINDING VWH ZC 13 1 2...

Page 42: ...W PCB as shown in fig 5 While you are screwing down the PCB it may float from the chassis To avoid this after screwing in the PCB at the center of the keyboard screw down opposite end before screwing...

Page 43: ...R S S S S T T T T U U U U 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 6 7 7 7 7 8 8 8 8 9 9 9 9 10 10 10 10 11 11 11 11 12 12 12 12 13 13 13 13 14 14 14 14 15 15 15 15 16 16 16 16 17 17 17 17 18 18...

Page 44: ...R S S S S T T T T U U U U 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 6 7 7 7 7 8 8 8 8 9 9 9 9 10 10 10 10 11 11 11 11 12 12 12 12 13 13 13 13 14 14 14 14 15 15 15 15 16 16 16 16 17 17 17 17 18 18...

Page 45: ...HOULDER SCREW 2 17048465 CORD CILP 3 17048469 SCREW M5X10 TRUSS MACHINE 1 17048467 KNOB BOLT M5X15 2 17048468 HEAD 2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 Using the supplied hexagon wrench loosen the...

Page 46: ...it Try to keep it level at all times Be careful so that it is not dropped on your feet or hands In households with small children an adult should provide supervision until the child is capable of fol...

Page 47: ...HINE 1 17048467 KNOB BOLT M5X15 2 17048468 HEAD 2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 5 5 15 15 5 8 6 14 4 9 14 13 12 11 10 9 8 7 6 5 4 3 2 1 1 Using the supplied hexagon wrench loosen the two screws...

Page 48: ...eep it level at all times Be careful so that it is not dropped on your feet or hands In households with small children an adult should provide supervision until the child is capable of following all t...

Page 49: ...iring 2 between CN8 on the main board and LCD unit Use 01902967 FUJI card 14x800 A6 0BBR P1 25 HBL10 S C Dress the wirings 1 and 2 as shown below MAIN BOARD CN10 PANEL A BOARD CN10 01902956 FUJI CARD...

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