Roland AX-7 Service Manual
AX-7
Nov, 2001
1
SERVICE NOTES
Issued by RES
First edition
Copyright © 2001 by ROLAND CORPORATION
All rights reserved. No parts of this publication may be reproduced in any form whithout the written permission of ROLAND CORPORATION.
SN00058 K6018458 Printed in Italy (I00) (AD)
aX-7
midi keyboard controller
TABLE OF CONTENTS Page
SPECIFICATIONS 1
LOCATION OF CONTROLS 2
EXPLODED VIEW (TOP) 3
EXPLODED VIEW (BOTTOM) 3
KEYBOARD PARTS LIST 4
PARTS LIST 4/5
HOW TO VISUALIZE THE SYSTEM PROGRAM VERSION 6
HOW TO CARRY OUT THE FACTORY SETUP 6
HOW TO ENTER TEST MODE 6
BLOCK DIAGRAM 9
CPU PCB ASSY 10
CIRCUIT DIAGRAM (CPU PCB ASSY 1/3) 11
CIRCUIT DIAGRAM (CPU PCB ASSY 2/3) 12
CIRCUIT DIAGRAM (CPU PCB ASSY 3/3) 13
LEFT CONTROL PCB ASSY 14
RIGHT CONTROL PCB ASSY & CIRCUIT DIAGRAM 15
DISPLAY PCB ASSY & CIRCUIT DIAGRAM 16
D-BEAM PCB ASSY & CIRCUIT DIAGRAM 16
CONTACT PCB ASSY W/ RUBBER & CIRCUIT DIAGRAM 17
Specifications
Keyboard: 45-key keyboard with Velocity Sensitivity (TP-7 BA type)
Display: 3 x 7 segments display view control
Realtime controllers: Data Entry Knob, Touch Controller, Expression Bar, Hold Button, D-Beam
Memories: 128 Patches
Connections: MIDI In, Out; DC IN (adaptor)
Power supply : Battery-operated, Optional AC/DC Adaptor ACA (DC 9V)
Dimension: 1010 (W) x 195 (D) x 102 (H) mm
Weight:: 3,0 Kg
Supplied accessories: 6 x dry batteries (AA type), MIDI cable, Owner’s Manual, Shoulder strap
Specifications subject to change without prior notice. All other trademarks mentioned in this manual are the property of the respective companies.
DISASSEMBLY
2
AX-7
Nov, 2001
LOCATION OF CONTROLS
REAR VIEW
3
AX-7
Nov, 2001
EXPLODED VIEW - TOP
EXPLODED VIEW - BOTTOM
CASING Q.ty
# 7772511000 VARN.+SILK. TOP CABINET AX-7 1
# 7772510000 VARN.+SILK. BOTTOM CABINET AX-7 1
# 7772509000 VARN. BATTERY COVER AX-1 1
# 7772508000 VARN. DISPLAY COVER AX-7 1
# 7772507000 SILKSCREENED PLEXIGLASS AX-7 1
KNOB BUTTON
K2478122 ROUND TAB BLACK H.8.3 6
K2478123 ROUND TAB BLACK H. 9.12 18
# K2478347 ROUND PUSHBUTTON RED H.9,12 1
# K2478348 ROUND PUSHBUTTON BLACK) H.13,5 1
7695111000 SILKSCREENED KNOB ASSY AX-1 1
SWITCH
J3169105 SWITCH TP-1101A / EVQ-PAE 05 R on RCB / on LCB 26
13159111 POWER SWITCH SSSP12114A SW2 on CPU 1
JACK, SOCKET
13449711 DC-SUPPLY SOC. HEC0470-01-630 JK2 on CPU 1
13429697 5P DIN SOCKET TCS5350-01-4051 JK1,3 on CPU 2
DISPLAY UNIT
00239767 DISPLAY TYPE LB-603VF (RED) DS1 on DISPLAY Board 1
KEYBOARD ASSY
7695105000 KEYBOARD ASSY AX1 1
NOTE: For details, refer to KEYBOARD PARTS LIST (Page 4)
PCB ASSY
# 7772501000 RIGHT CONTROL PCB ASSY AX-7 1
# 7772502000 LEFT CONTROL PCB ASSY AX-7 1
# 7772503000 D-BEAM PCB ASSY AX-7 1
# 7772504000 DISPLAY PCB ASSY AX-7 1
# 7772505000 CPU PCB ASSY AX-7 1
7695104000 CONTACT PCB ASSY + RUBBER AX1 1
IC
15229718RI I.C. 6N 137 PHOTO-COUPLER IC1 on CPU 1
15169550RI I.C. 74 HC138 DIP CMOS IC21 on CPU 1
15249111 I.C. TC7WU04 F FLAT CMOS IC13 on CPU 1
J5259127 I.C. 74 HC 10 IC16 on CPU 1
J5259113 I.C. 74 HC 390 FLAT CMOS IC14 on CPU 1
J5259128 I.C. 74 HC 393 FLAT IC17 on CPU 1
15259821 I.C. TC74HC573AF IC10 on CPU 1
00129278 I.C. SSC1080 FOB (CUSTOM IC) IC11 on CPU 1
J5259153 I.C. AT24C64N-10SC 64K EEPROM IC6 on CPU 1
15259884 I.C. TC7S08F MOS CMOS IC9 on CPU 1
15249104 I.C. TC7S04F FLAT IC12 on CPU 1
J5259149 I.C. TC74VHC541FT FLAT IC7 on CPU 1
15219183 I.C. M51953 AL (STANDING) IC8 on CPU 1
15149146 I.C. TD62583AP (INTERF.DRIVER IC) IC22 on CPU 1
15289105 I.C. UPC 4570G (OP AMP) IC20 on CPU 1
15189189 I.C. UPC 4570HA VERT. (OP.AMP.) IC1 on CPU 1
15289141 I.C. M5223FP-600D IC18,23 on CPU 2
# 7772506000 I.C. MICRO IC2 CPU A-37/AX-7 IC2 on CPU 1
TRANSISTOR
15129114 TRANSISTOR 2SC-1815GR Q7 on CPU 1
15319101 TRANSISTOR 2SC-2412K Q14 on CPU 1
15309101 TRANSISTOR 2SA-1037KR Q6 on CPU 1
15329503 TRANSISTOR DTA-124 EK CHIP Q1 on CPU 1
PARTS LIST AX-7
When ordering any parts listed in the parts list,please specify the following items in the order sheet.
QTY PART NUMBER DESCRIPTION MODEL NUMBER
Ex. 10 22575241 Sharp Key C-20/50
15 2247017300 Knob (orange) DAC-15D
Failure to completely fill the above items with correct number and description will result in delayed or
even undelivered replacement.
CONSIDERATION ON PARTS ORDERING
NOTE:
# The parts marked " # '' are new (Initial Parts).
A The parts marked " A '' are new (Initial Parts).for RES but already used by RJA
The parts marked have Safety - Related characteristics.
Use only listed parts for replacement.
<< EMI >> Component for EMC.
NNoottee :: Replacement should be made on a unit basis. No replacements available for individual parts.
Replacement only be a unit.
SAFETY PRECAUTIONS :
The parts marked have
safety-related characteristics.
Use only listed parts for
replacement.
4
AX-7
Nov, 2001
KEYBOARD PARTS LIST
45 KEY KEYBOARD TP-7/BA Code: 7695105000
RCB = Right Control Board
LCB = Left Control Board
CPU = CPU Board
CB = Contact B.
CDB = D-Beam Board
!
!
!
AX-7
Nov, 2001
5
15129427 TRANSISTOR 2SC-2235Y Q8 on CPU 1
15329516 TRANSISTOR DTC-114EK Q2 on CPU 1
15119163 TRANSISTOR RN2227 Q9,10,11,12,13 on CPU 5
15329104 TRANSISTOR 2SK-368GR FET CHIP Q5 on CPU 1
J5119105 TRANSISTOR TN6717A Q3,4 on CPU 2
DIODE
15019159RI DIODE 1N-4148 on LCB / on CDB / on RCB / on CB 102
15339105 DIODE DAN-202K D9,10 on CPU 2
15339108 DIODE DA-204K D1,2,7,12,13 on CPU 5
00893912 DIODE SFPB-56 CHIP D3 on CPU 1
15339109 DIODE DAP 202K CHIP D8,5 on CPU 2
J5029107 LED DIODE 3 SLR-37VR3F - RED D1,2,3,4,5 on RCB / D1,2,3,4 on LCB 9
01341623 DIODE LED TLN 201 D1 on CDB 1
01342578 PHOTO DIODE TPS 708 D2 on CDB 1
15019345RI ZENER DIODE BZX79C 5.6V D4 on CPU 1
J5019106 ZENER DIODE BZX55C 5,1V D6,11 on CPU 2
J5019116 DIODE TRANSIL BZW04-5V8B D10 on LCB 1
RESISTOR
J3919104 RESISTOR ARRAY EXB-A10E-103-J RA1,3,4,5,6 on CPU 5
J3919108 RESISTOR ARRAY EXB-V8V-103-JV RA2 on CPU 1
13819131RI UNINFL.RES. 10 OHM 0.6W 5% R65 on CPU 1
J3809129 UNINFL. RES. 220 OHM 0.6W 5% R34 on CPU 1
J3809135 UNINFL.RES. 330 OHM 0.6W 5% R77,81,82,83,84,85,86,87 on CPU 8
POTENTIOMETER
13289217 ROT. POT. 100KB 09L1120 VR1 on LCB 1
13299206 TRIMMER POT. EVND 8AA03B24 VR1 on CPU 1
CAPACITOR
J5369103 ELECTR. COND. RV2 100U 16V (SMD) C64,37 on CPU 2
J5369104 ELECTR. COND. RV2 10U 16V (SMD) C2,11,15,41,81,83,85,86,87,89,94,95 on CPU 12
J5369105 ELECTR. COND. RV3 33U 16V (SMD) C91 on CPU 1
J5369102 ELECTR.COND. RV2 47U 16V (SMD) C42,65,66 on CPU 3
J5369106 ELECTR. COND. RV2 1U 50V (SMD) C12,70 on CPU 2
J3629143 ELECTR. COND. 10U 16V H.7 C3,5 on CDB 2
J3629142 ELECTR. COND. 1U 63V H.7 C1 on LCB 1
INDUCTOR, COIL, FILTER
<<EMI>> 12449382RI NOISE SUP. PLT1-R53C L4 on CPU 1
<<EMI>> 12449370 NOISE SUP. SBT-0160W L1,2 on CPU 2
<<EMI>> 12449326 NOISE SUP. SBT-0460 L3 on CPU 1
<<EMI>> J2399104 CHIP NOISE SUP. EXCCL4532U1 L5,6,7,8 on CPU 4
CRYSTAL, RESONATOR
00894034 X-TAL 16 MHZ MA-406 X1 on CPU 1
01124812 QUARTZ 10 MHZ MA-406 X2 on CPU 1
CONNECTOR
13419677RI 16P FEM. CONNECTOR AMP 1.27 CN2,4 on CPU / on RC / on LC 4
J3429114 22P FEM. CONN. C/1.25 - H. CN3 on LCB / CN9 on CPU 2
J3429122 14P FEM. CONNECTOR AMP 1.27 CN1 on RCB 1
J3429123 8P FEM. CONNECTOR IL-404-08S-LW CN1 on LCB 1
# J3429127 28V FEMALE CONN. 1,25 90° FE-ST-VK-N CN3 on RCB / CN6 on CPU 2
J3439125 5P MALE CONNECTOR P.2 M CN2 on RCB / CN1 on CDB 2
WIRING, CABLE
# K3468260 22P MYLAR CABLE (44) 1,25 From CN9 on CPU to CN3 on LCB 1
# K3468261 28P MYLAR CABLE (16) 1.25 From CN6 on CPU to CN3 on RCB 1
2348854501 16P FLAT CABLE (18) -2C From CN4 on CPU to CN2 on CB 1
7695108001 16P FLAT CABLE (24) -2C From CN2 on CPU to CN1 on CB 1
7770306000 5P CABLE (8) -2C P.2 D/R VA-5 From CN1 on CDB to CN2 on RCB
BATTERY
J2569102 2-BATTERY SET 'AA'-SIZE (ALK.) 3
SCREW
J2289122 SCREW 2.2X6 TC TC BRUN 2
J2289102 SELF TAP. SCREW 2.9X10 TC TC 6
J2289124 SELF TAP. SCREW 2.9X 6 TCTCPRBZ 27
J2289125 SCREW 2.9X10 TC TC PR TROP 50
J2289132 PITCH SCREW M3X16 TC TC 2
J2289134 PITCH SCREW M3X17 TC TSC 3
PACKING
K2638127 POLYST. LOWER SIDE COVER 1
# K2638265 UPPER POLYST. SIDE AX-7 1
K2678102 POLYETH. ENVELOPE 25X45 2
# K2618264 OUTER CARTON AX-7 1
MISCELLANEOUS
J2289113 NUT 3MA H.3 5
J2139101 FLAT WASHER I/D 4 2
J2139111 FLAT WASHER I/D 3X7 TH. 0.6 4
J2139102 TOOTHED WASHER I/D 3 5
K2168105 SPACER F/LED H.12 HEX. 5
K2168107 SPACER F/LED H.8.8 HEX. 4
00453223 LED SPACER H. 7 E.D. 5 2
J2359101 SPACER 3M ART. SJ5012 6
J2159102 PLASTIC RIVET SR3055 4
J2209101 6-BATTERY HOLDER 1
22925256 CONTACT F/SENSOR AX-1 1
# 01237945 PRESSURE SENSOR PB-A0101 1
# K2268170 VIBRATION DAMPER 60X36 (LIGHT) AX-7 1
# K2268171 VIBRATION DAMPER 70X49 (LIGHT) AX-7 1
# K2268172 VIBRATION DAMPER 599X20 (LIGHT) AX-7 1
# K2268173 VIBRATION DAMPER 39X83 (LIGHT) AX-7 1
02452467 RIBBON SENSOR HPD-15 1
13419723RI 9V BATTERY CONNECTION 1
J2129102 FEMALE LOCK FOR BELT AX1 1
K2178101 EXTENSION SPRING 1
22365708 HOLDER F/POWER SUPPLY CBL 1
K2148103 MODULATION BAR AX-1 1
K1188118 CONTACT HOLDER + SENSOR 1
01343089 D-BEAM CONTROLLER ESCT BLK 1
13429823RI P. SUPPLY PLUG LOCKING 1
ACCESSORIES
J2319101 BLACK BELT - 1.6 M 1
J3439116 MIDI CBL - BLACK - 5 M. 1
K6018109 MIDI GUIDE 1
# K6018456 OWNER'S MANUAL E/D/F/SP/IT/OL AX-7 1
AX-7
Nov, 2001
6
a) Front Panel check (Controls)
Once you have entered the control panel check, press button 1:
The display visualizes:
If you press the button 1, you check the b
uttons.
If you press the button 2, you check the LEDs
.
If you press the button 3, you check the Controls (Expression bar, Touch controller, Data entry).
Buttons check
Once you have entered the front panel test mode, press button 1.
The display visualizes pict. A:
If you press the buttons of the control panel one after the other, the display will visualize their name.
When you release the button, the display will visualize: OFF (See pict. B).
Press EXIT and WRITE at the same time to exit.
The test procedure automatically goes back to the previous menu.
Note: It is not possible to go on to the following step if this test is not carried out correctly.
If you exit the test before checking all the buttons, the display indicates the name of the untested
buttons.
Press EXIT to go back to the main menu.
LED c
heck
Once you have entered the control panel check, press button 2.
The control panel LEDs and the display segments will light in sequence.
Press EXIT to leave this test.
Press EXIT again to go back to the main menu.
Contr
ol check (Expression bar, Touch controller, Data entry).
Once you have entered the control panel check, press button 3.
The display visualizes:
Pressing the button 1, you check the Expression bar
.
Pressing the button 2, you check the T
ouch controller.
Pressing the button 3, you check the Data entry potentiometer.
Expression bar
Once you have pressed the button 1, the display visualizes:
Pict. A (value 0) if the Expression bar is released;
Pict. B (value 127) if the Expression bar is completely pressed.
A B
A B
TEST MODE
ITEMS REQUIRED:
· MIDI cable;
HOW TO VISUALIZE THE SYSTEM PROGRAM VERSION
Turn the instrument on, while keeping pressed the button 2 of section PATCH.
After a few seconds, the display will visualize a writing identifying the software version:
i.e.: VER 100 - 04 oct 2001
To exit, turn the instrument off.
HOW
TO CARRY OUT THE FACTORY SETUP
Turn the instrument on while keeping the button WRITE pressed.
After a few seconds, the display will visualize the writing Factory setup.
The Factory Setup function re-establishes the instrument's factory settings.
HOW TO ENTER TEST MODE
Turn the instrument on while keeping pressed the button 1 of section PATCH.
After a few seconds, the display will visualize the following writing:
TEST ROLAND AX-7 VERSION 1.00
Then the display visualizes:
Every button of section Patch corresponds to a test to carry out.
Button 1 ⇒ P
anel check ("F": Front, "R": Rear);
Button 2 ⇒ K
eyboard check
Button 3 ⇒ Memory check
Turn the instrument off to exit test mode.
Note: After carrying out the tests, the instrument automatically performs the Factory Setup.
1) PANEL CHECK (FRONT / REAR)
Once entered test mode, press button 1. The display visualizes:
If you press button 1, you check the Front Control Panel.
If you press button 2, you check the Rear Control panel (MIDI, D-Beam, HOLD and Battery).
Press EXIT to come back to the previous menu.
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