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MC-80 Feb,1999 1. Check that all LEDs light on. 1. LED 1. "Press ’ENTER’ to test" appears on display. 1. "Press ’ENTER’ to test" 2. Press the switches on the panel one <strong>by</strong> one. The corresponding switch will change into a dot on display and/or LED will be turned off. * About [END] key and [BEAT] LED 2. LCD LED [BEAT] LED 2. Press [ENTER],then check that all dots of display are turned off. 3. Press [ENTER] again,then check that all dots of display are turned on. 2. [ENTER] 3. [ENTER] a. At first, LED lights up orange. b. Press [END] once, then LED lights up red. c. Press it again, then LED lights up green. d. Press it once more, then LED is turned off. 3. If all switches are pressed, "OK" appears on display and TEST5 : FOOT SWITCH runs automatically. a. b. [END] c. d. 3. "OK" TEST 5: FOOT SWITCH 4. Rotate [VALUE] toward the left or right,then check that the contrast of display changes bright or dark, and that LEDs light up from [PATTERN] to [MINUS ONE]. 5. After checking,press [ENTER] and [F6(NEXT)] to advance to TEST 7: FDD READ/WRITE. Here,the contrast of display will return to its normal value. 4. [VALUE] [PATTERN] [MINUS ONE] LED 5. [ENTER] [F6(NEXT)] * If the corresponding switch is NOT change into a dot on display as each switch is pressed and/or LED is NOT turned off, check the following. • the corresponding switch and LED on the PANEL BOARD • transistors and ICs on the PANEL BOARD • IC4,IC12,Q1~Q15 on the MAIN BOARD • fuji-card connecting MAIN BOARD and PANEL BOARD TEST5 : FOOT SWITCH LCD LED LED IC IC4,IC12,Q1 Q5 PANEL BOARD TEST5 : FOOT SWITCH * If dots of display are lacking, check the following. • LCD UNIT • fuji-card connecting MAIN BOARD and LCD UNIT • IC7 on the MAIN BOARD * If the contrast of display does NOT change, check the following. • ENCODER • IC13 and circumference chips on the MAIN BOARD • fuji-card connecting MAIN BOARD and PANEL BOARD LCD UNIT MAIN BOARD LCD UNIT MAIN BOARD IC7 IC13 PANEL BOARD TEST 7: FDD READ/WRITE TEST 7: FDD READ/WRITE 1. Check that "OFF" appears on both channels of foot switch on display. 1. L,R "OFF" 2. Connect the stereo plug of PCS-31 cable to FOOT SW jack, and the other ends to two FS5U. 3. When holding on foot switch connecting to left channels,"ON" appears on left channels on display. 2. PCS-31 MC-80 FOOT SW FS-5U 3. L L "ON" 1. "Insert the 2HD disk.(Protect= ON)" appears on display. Then insert the 2HD floppy disk to protect on. 1. "Insert the 2HD disk.(Protect= ON)" ON 2HD 4. When holding off foot switch connecting to left channels,"OFF" appears on left channels on display. 5. When holding on foot switch connecting to right channels,"ON" appears on right channels on display. 6. When holding off foot switch connecting to right channels,"ON" appears on right channels on display. 7. If steps from 3 to 6 are working correctly, "OK" appears on display and TEST6 : LCD / ENCODER runs automatically. 4. L L "OFF" 5. R R "ON" 6. R R "OFF" 7. 3 6 "OK" TEST 6 : LCD / ENCODER 2. "Media 2HD/Protect ON" and "Remove the disk." appears on display. Remove the disk. 3. "Insert the 2HD disk.(Protect= OFF)" appears on display. Then insert the 2HD floppy disk to protect off. 4. "Media 2HD/Protect OFF" and "Remove the disk." appears on display. Remove the disk. 2. "Media 2HD/Protect ON""Remove the disk." 3. "Insert the 2HD disk.(Protect= OFF)" OFF 2HD 4. "Media 2HD/Protect OFF""Remove the disk." * If "ON" or "OFF" does NOT appears on display same as holding on or off foot switch, check the following. • circumference chips for foot switch on the JACK BOARD • fuji-card connecting MAIN BOARD and JACK BOARD TEST6 : LCD / ENCODER "ON" "OFF" JACK BOARD TEST6 : LCD / ENCODER 5. "Insert the 2DD disk.(Protect= OFF)" appears on display. Then insert the 2HD floppy disk to protect off. 6. "Media 2DD/Protect OFF" and "Remove the disk." appears on display. Remove the disk. 7. If steps from 1 to 6 are working correctly, "OK" appears on display and TEST 8: SOUND runs automatically. 5. "Insert the 2DD disk.(Protect= OFF)" OFF 2DD 6. "Media 2DD/Protect OFF""Remove the disk." 7. 1 6 "OK" TEST 8: SOUND * If steps from 1 to 6 are NOT working correctly, check the following. 1 6 • floppy disk drive unit • 2 wiring connecting floppy disk drive unit and JACK BOARD • IC114 and circumference chips on the JACK BOARD • fuji-card connecting MAIN BOARD and JACK BOARD JACK BOARD IC114 JACK BOARD 12
Feb,1999 MC-80 TEST 8: SOUND TEST 8: SOUND TEST10: RESULT TEST10: RESULT 1. Connect the headphones into PHONES jack. Connect the monitor speaker into OUTPUT jack. (It has no problem to check the signal with an oscilloscope.) Raise [EXPANSION VOLUME] suitably. 2. Check that no sound is heard from the headphones and the monitor speaker. 1. PHONES OUTPUT ( [EXPANSION VOLUME] 2. 1. When "ERR!" appears on display, the unpassed test items that highlighted will appear on display and the corresponding [TRACK] LEDs will blink. 2. The MC-80 power can be turned off in this state. Press the corresponding blinking LED when going back to the unpassed test item. 1. "ERR!" "OK" TRACK LED 2. "OK" LED 3. Press [F5(TEST)],then check that a sine wave sound is heard from left channels. 3. [F5(TEST)] 4. Press [F5(TEST)] again,then check that a sine wave sound is heard from right channels. 4. [F5(TEST)] 5. Press [F5(TEST)] once more,then check that a sine wave sound is heard from both channels. 5. [F5(TEST)] 6. Press [F5(TEST)] once more,then check that no sound is heard from both channels. 7. After checking,disconnect the headphones and the monitor speaker. Press [F6(NEXT)] to advance to TEST 9: CLICK. 6. [F5(TEST)] 7. [F6(NEXT)] 1. When "COMPLETED!" appears on display, it means all the test items have been completed. 2. The MC-80 power can be turned off in this state. 1. "COMPLETED!" 2. * If the sound is NOT heard correctly, check the following. • VE-GSPro • IC101,IC102,IC103,IC130 and circumference chips on the JACK BOARD • VR BOARD and wiring connecting it • fuji-card connecting MAIN BOARD and JACK BOARD TEST 9: CLICK VE-GSPro JACK BOARD IC101,IC102,IC103,IC130 VR BOARD MAIN BOARD JACK BOARD TEST 9: CLICK 1. A metronomic click will sound from internal speaker. 2. Check the volume change <strong>by</strong> turning [CLICK LEVEL] on the rear panel. 3. Connect the headphones into PHONES jack, then check that the sound is only heard from the headphones which overrides internal speaker. 4. After checking,disconnect the headphones. Press [F6(NEXT)] to advance to TEST 10: RESULT. 1. 2. [CLICK LEVEL] 3. PHONES 4. [F6(NEXT)] * If no sound is heard, check the following. • SP101,JK102,VR101 and circumference chips on the JACK BOARD • fuji-card connecting MAIN BOARD and JACK BOARD JACK BOARD SP101,JK102,VR101 MAIN BOARD JACK BOARD 13
Page 1 and 2: Feb,1999 MC-80 TABLE OF CONTENTS I
Page 3 and 4: Feb,1999 MC-80 LOCATION OF CONTROLS
Page 5 and 6: Feb,1999 MC-80 5 [SCREW] No. PART N
Page 7 and 8: Feb,1999 MC-80 WIRING DIAGRAM fig*
Page 9 and 10: Feb,1999 MC-80 CONNECTOR/ 00453467
Page 11: Feb,1999 MC-80 ♦ Caution: • Whe
Page 15 and 16: 15 Feb,1999 MC-80
Page 17 and 18: 17 Feb,1999 MC-80
Page 19 and 20: 19 Feb,1999 MC-80
Page 21 and 22: 21 Feb,1999 MC-80
Page 23 and 24: Feb,1999 MC-80
Page 25 and 26: Feb,1999 MC-80 INSTALLING THE INTER
Page 27: Feb,1999 MC-80 5. Remove the screws

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