ROLAND EP 7II

Page 1

Apr. 1993

90-7

TABLE OF CONTENTS

SPECIFICATIONS

LOCATION OF CONTROLS

EXPLODED VIEW

DISASSEMBLY/ASSEMBLY

KEYBOARD SK-8P76-B
PARTS LIST
DISASSEMBLY
ELIMINATING THE KEYBOARD NOISE
CIRCUIT BOARD
CIRCUIT DIAGRAM

PARTS LIST

BLOCK DIAGRAM

WIRING DIAGRAM

MAIN BOARD

IC DATA

CIRCUIT DIAGRAM

(MAIN BOARD/ Digital Circuit)

DIGITAL PIANO

ep'7II

SERVICE NOTES

First Edition

E 3k Page

Iifi ............................................ 1
/\°*JDEEE@
533$

/\'-J U X L ........
flfi$ufi ............
mean 4zmiegra;
gm. ..............
/\°_\y U X I .......

CIRCUIT DIAGRAM ERIE (MAIN BOARD/Analog Circuit) ------------- 12
(MAIN BOARD/ Analog Circuit)
PANEL BOARD & CIRCUIT DIAGRAM PANEL Efigé IEHEI """"""""""""""" 13
(SWITCH. SS, POWER, VOLUME, PHONES) (SWITCH, SS, POWER VOLUME, PHONES)
TEST MODE 712} .:E_ [2 ............................. 14,15
TROUBLESHOOTING b571991-5-4 ~17. .............. 16-21
IDENTIFYING CPU VERSION CPU 0)/\- 9 a 906%? i ------------------ 21
RECORDER DATA BACKUP [/ :I -5f'- mega nf;§-"- 5' a) ................ 22
/\'y 77971200?
PEDAL DP-2 /{5r/I, DP-2 ................................ 22
Speaker
Side PaneI L P012270C
(21125536) MR Holder X 2 (12419112)
(22205831) pane|
S k
$2,200 <22225563> Side Panel a
(12419112) (21125535)
== ==
.3 his. g}. ens aaaééaaa as I: map 711w-

_.ui

Keyboard Assy Blind
SK_ 8P76- B (22235333)
(7629320000)
@Roland 17059695 Printed in Japan HHO (DP)1

SPECIFICATIONS Hiifi

Keyboard ~~~~~~~~~~~~~~~ 76keys (weighted 3: with Velocity) SW'W' """"" 126m (2»5 9) X 2
A , - ~0utpm Pow-r ~~5w x 2
MIXIlIlI-llll Voice; 23 Vonces
discord-r ~~~~~~~~~~~~~~~~ REC (Maximum Recordable Nutes 'D'"""'°"" 39 (W X 339 (D) X 100 (H) mm
Number is 1,600 Name) '9' """ KS
PLAY Currom Du 1200mA (9V DC)
TEMPO UP ~Aoooueri» ~~~~~~~~~~~~~ A AC Adaptor
TEMPO DOWN ACK' 100 100V : 12449630
PIECE SELECT 1-4 ACK- 120 120V : 12449631
'thn ~~~~~~~~~~~~~~~~~~ CHORUS ACE-220 220V ; 12449543
REVERE ACB-240E 240V EnglanN : 12449564
Than, Tu". ............ 150w. AFB-240 240V Auslrfllla : 12449549
~ Panel Switch --------- POWER MUSIC 'Rest : 22195678
TEMPO up Owner-s Manual Set (Japanese): 26055863
TEMPO DOWN Owners Manual Set (English) : 26055364
REC Damper Pedal DP-Z
PLAY

TONE (PIANOI, PIANOZ. EPIANO. VIBRAPHONE
HARPSICHORD. ORGAN, STRINGS. CHOIR )
CHORUS
REVERE
DEMO
- Knob: ~~~~~~~~~~~~~~~~~~~ TUNE
VOLUME
PIECE SELECT
'Inpu ~~~~~~~~~~~~~~~~~~~ AC Adapter (DC IN) x l
MIDI IN X 1
INPUT (L/ R)
Damper Pedal x 1
Soft Pedal )< l
t Output ~~~~~~~~~~~~~~~~~ OUTPUT (L/R)
PHONES X 2
MIDI OUT X l

DIMENSIONAL OUTLINES FOR SPEAKER /X I:°- 7] -(D%EI§.

AlIowabIe Power Input l§$§Ajj Typical Rating/E16 ------------------------------ 5W
Maximum Rating/ii ~~~~~ 10w
Rated Impedance/E134 V 8-5/7} ------------------ - 2,5 9 i 0.34 9
Minimum Resonant Frequency (Io)lfiI&§%lfiI§Iififi(fo) ~ - - ~ - 112Hz t 22Hz
Output Sound Pressure Level / ifljj'E'ElxWb ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ made i 2dB
Output Sound Pressure Frequency Charcteristics / flihfiEIfiififiW ---------- Io~14,ooon
(within 20dB deviation [Mi 20dB Elm)

NET

0101.52:

9 we: 1 o
v ems: 1.2
I nu: L0

Note
At 4 locations of mounting holes (on 119- mm diacircle). 7- mm dia. boss musI be inserted from the front side.
Elfifigfit w'filzfiflfii» 1; ¢ 7a)=fix (E 7 9" ¢ 119) zfifiiAHiéké 1 Eu

Copyrlgm © 1998 by ROLAND OORPORATIOII