Roland EP-30 Quick start guide

ROLAND ELECTRONIC PIANO MODEL EP-30
TOUCH RESPONSE TYPE
ROLAND PIANO
SERVICE NOTE
THE FIRST EDITION
Roland Corporation

INDEX
1. SPECIFICATIONS . 2
2. GENERAL BLOCK DIAGRAM . 3
3. CABINET DISASSEMBLING . 4
4. LOCATION OF THE CIRCUIT BOARD ASSEMBLIES . 5
5. PARTS LAYOUT X, CIRCUIT DIAGRAM . 6
5-1. MASTER GENERATOR . 6
5-2. DIVIDER. 8
5-3. GATE .10
5-4. VOICING FILTER & AMPLIFIER. 12
5- 5. POWER SUPPLY. 14
6. ALIGNMENT PROCEDURE . 16
6- 1. ADJUSTMENT FOR GATE CUTOFF. 16
6-2. ADJUSTMENT FOR DYNAMIC RANGE OF TOUCH SENSITIVITY
.16
6-3. ADJUSTMENT FOR MASTER GENERATOR . 17
6-4. ADJUSTMENT FOR DEGREE OF TREMOLO MODULATION ... 18
7. GENERAL SCHEMATIC DIAGRAM . 21
8. STANDARD WAVE-FORMS Xc VOLTAGES ON THE CIRCUITS ... 23
9. PARTS LIST . 25

ROLAND
PIANO
MODEL EP-30
SPECIFICATIONS
Keyboard
Changeover Switches
Tone Selectors
61 Keys(5 Octaves t FI - F6)
PIANO
I
PIANO
II
HARPSICHORD I
HARPSICHORD II
BASS Changeover Switch
VIBRATO Switch
Control Knobs ...6
Main VOLUME (with SENS.-OFF Switch; Pull the Main
VOLUME knob, and touch-sensitivity will
be OFF.)
TONE Control
BASS Volume
VIBRATO RATE
VIBRATO DEPTH
PITCH Control
OUTPUT Jack (high impedance) . 1
PEDAL Jack (for DP-l) . 1
PHONES Jack (for Headphones of general stereo amplifier).1
POWER Switch
Pilot Lamp
AC Voltage
Power Consumption
Dimensions
Weight
Accessories
s 100V, 117V, 220V, 250V, 50/60HZ
: 10VA
: 900(W) x 300(D) x 150(H)mm
(35•4(W) x 11.8(D) x 5.9(H)inch)
* 14-5Kg(31.9Lbs)
: Music Rack. 1
Pedal Switch(DP-l).1
Connection Cord 2.5m. 1
(with Pin-Plug Adaptor)
* OUTPUT VOLTAGE
SENS. ON SENS. OFF
PIANO
1.8Vp-p max. 0.9Vp-p max
HARPSICHORD
2.4Vp-p max. 1.2Vp-p max
BASS(VR max.)
5.0Vp-p max.
2.5Vp-p max
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE

SENS.
OFF
SWITCH
61
KEYS
KEYBOARD

3. CABINET DISASSEMBLING (Pig. 2)

4. LOCATION OP THE CIRCUIT BOARD ASSEMBLIES
VOLUME
SIDE
block:
POWER TRANSFORMER DIVIDER BOARD ASSEMBLIES
- 5 -
(Pig- 5)

5. PABTS LAYOUT & CIRCUIT DIAGRAM
5-1. MASTER GENERATOR
5-l(a) MASTER GENERATOR BOARD ASSEMBLY (AG-997)
O O — B A' A G' Gr F'
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QD
470P(H)O < ■ —>4-70 P , c?45, rzzfS C22D
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-CO 1S1555 or 1S2473
(Pig. 7)

5-l(b) MASTER GENERATOR CIRCUIT DIAGRAM (Fig. 8)

Only on DV-999.
- 9 -