ASR Service Manual I P/N 9312001801 .
Table of Contents TABLE OF CONTENTS IMPORTANT THINGS TO KNOW Known Areas of Concern ................................................................................................... 1 1 Avoid Damage from ESD (Electrostatic Discharge) ............................................................ SIMMS .................................................................................................................................. 1 What SIMMs to Use ..........................................................
Table of Contents 3. Headphone Check ............................................................................................................. 35 4. MIDI Test.. ........................................................................................................................ 35 5. Anlog Page.. ...................................................................................................................... 36 6. Disk Check.. ...................................................................
Table of Contents LIST OF FIGURES Figure 1 - Note the single jumper above the Simm slots ...................................................... 2 Figure 2 - Note the two different jumpers above theSEvIM slots ......................................... 2 Figure 3 - Rear view of Panasonic Disk Drive ..................................................................... 3 Figure 4 - Correct Sony 420-l jumper settings.. ...................................................................
Important IMPORTANT THINGS TO KNOW ABOUT THE ASR-1 O/88 About this manual: The instructions in this manual are for both the ASR-10/M? Keyboard and Rack unless otherwise noted. When you are troubleshooting an ASR Rack and the instructions say to check the keyboard, substitute a check of the KPC simulator board. When you are troubleshooting an a ASR-88 and the instructions say to check the keyboard, substitute a check of the keyboard adapter board.
Important Note: It is possible that your unit has a different rev board than these cutoffs suggest, due to a repair or other circumstance. Be sure to check it against the diagrams here to confirm which rev board you have. What Changed? The newer board can accept 2 chip and 8 chip 4meg SIMMs. The older board can only use the 8 chip parts. Since the 2 chip parts are becoming more common (and possibly less expensive) we redesigned the board to allow you to use them.
Important l l l If SIMMs are installed in a less than optimal configuration (see pp. 71-72), the display will read SIMMs IN WRONG SOCKETS after booting. If this message is displayed, you should power off and check the SIMMs configuration. SIMMs that have GAL (gate array logic) or PAL (programmable array logic) chips on them may be too thick to fit into the standard sockets that are used on the ASR. Even if the SIMMs with GALS or PALS fit, they will draw too much power and certain configurations (i.e.
Imoortant e Customers may complain that their ASR will not read some of their disks. Please be aware that High Density (I-ID) disks that have been formatted as Double Density (DD) on a DD drive in a unit such as an EPS, EPS-16 PLUS, or a Macintosh Plus will not be recognized in machines that have an HD drive. This would include the ASR, as well as an IBM PC or clone. Disks that have been pre-formatted for MS DOS are not always reliable and should not be used.
Imnortant e) fj’ g) h) Press the right arrow button until the display shows DC OFFSET. Press Enter*Yes. The display should show: LEFT= +/-0000x RIGHT= +/-OOOOy If one or both of the values is 32,767 replace the analog board. In a properly functioning unit, the reading should not be greater than 20 counts from zero (+/00020). If the values exceed this: RACK: Replace the analog board.
.- Important MECHANICAL ISSUES Keyboard: Originally, three different types of screws were used in the ASR keyboard base pan 832s, two 6-32s into main board heat sink, and self-tapping into the extrusion. The 6-32s were eventually changed to 8-32s, so that there are now only two different types of screws. Keyboard: On early units, you may break the disk drive bezel when removing the disk drive from the unit. The wheel cover was modified on later units to prevent this.
Important GF OEX-6sr CONNECTOR ON ASR KEYBOARD AND ASR-88 CAUTION!!! IMPORTANT!!! OOed with the ASR power on, as this could damage the The OEX-6sr should never be plugged in or unplu,, ASR. The 8-pin mini-DIN connector on the rear panel of the ASR should only be used to connect the OEX-6sr Output Expander to the unit. This connector does not simply supply audio outputs and signal ground and, therefore, cannot be used to generate separate outputs without the OEX-6sr.
Important The block diagram also represents the modular design of the ASR-10. Each one of the main components represented in the diagram can be replaced, if necessary, without disturbing the other components in the system. Looking at the diagram you see: 1. Disk Drive Data storage and retrieval device. 2. Power Supply Board Converts AC voltages to regulated DC and unregulated AC and DC to be distributed throughout the system. 3.
ImDortant 13. Patch Select Button Board Transmits patch select button presses to the digital board. It is not included on the ASR-10 rackmount. The ASR-10 was designed with the analog and digital sections on different boards, and the analog and digital jack boards separate, for some specific reasons. l Only the digital board requires a four-layer circuit board so there is a cost savings using a two-layer board for the analog section.
Imoortant Due to the complexity of the modules involved, it is often difficult to determine which module is at fault when a communications problem occurs. DATA DATA CLOCK IN OUT OUT KEYPAD/DISPLAY BOARD I / 1 I 24 PIN DISPLAY CABLE DATA DATA IN OUT DIGITAL BOARD DATA I DATA CLOCK ASYNCHRONOUS PORT Figure 7 - Communications Path If a communication problem occurs (i.e.
Important between the two connectors are defective. If you have an ASR that has a problem communicating with its keypad/display board, you may want to verify continuity between the connectors on the digital board. Turn off the power and unplug the 20-pin ribbon cable from the ASR digital board at J7 and the ASR 24-pin display cable from the digital board at Jl.
Checking the Power Supply CHECKING THE POWER SUPPLY Some ASR-10 problems may be related to a faulty power supply, transformer or line filter. You should check these before troubleshooting the rest of the unit. Measure continuity across all the fuses to make sure they are not blown. Make sure that all the cable connections are secure and correct. Plug the ASR-10 in and turn it on. After it has warmed up for five minutes, begin to test the voltages at the points shown in Figures 8 and 9.
Checking The Power Supply POWER SUPPLY VOLTAGE CHECK POINTS Below are the voltage ranges for proper operation of each fully loaded supply and the pins to read across with the voltmeter (see Figure 9). It is normal for line voltage to vary +/- 10%. Designation Where Used Digital Supply Analog Supply Display Filament Display Offset +5D 1 +5D2 +VD +VAl +VA2 -VA1 -VA2 digital XXil0g display display digital digital display/digital/kbd LUlal0g aIMlog Wtl0g TilldOg Connector Pins Allowable range +,18.7 to 22.
Checking the Power Supply TESTING THE POWER SUPPLY UNLOADED If the power supply readings exceed the indicated tolerance it is possible that a defective component one of the other boards is drawing the power supply down. In this case, you should test the power supply unloaded before proceeding. This involves unplugging circuit boards from the power supply one at a time to see what board might be causing the incorrect readings. The procedure for doing this is shown in the flow charts, figures 8 and 9.
Checking The Power Supply Incomct digital power supply voltags INCORRECT DIGITAL POWER SUPPLY VOLTAGES (Digital Supply +5Dl, +5D2, +VD) TumtheunitOFF Checkthefuscs. Vetifythetbe pmpcr Line Voltage is present Turn the unit ON. NO+=) Simulator cable from J7 of tbe digital board. Turn the unit Simulator (see Section E). Turn tbc unit Off. Disconnect tbc Cpin Disk Drive power cable From tbc keypad/display board. Turn dx unit ON. I l T-0+( Replace the Disk Drive (see section IQ. Turn tbz unit Off.
Checking the Display DISPLAY SELF-TEST MODE When the keypad/display is receiving power from the power supply but is not in proper communication with the digital board, the keypad/display board enters self-test mode. In self-test mode, the display remains blank until you press the buttons on the control panel. Pressing various control panel buttons will cause the display to print characters, home the cursor, etc.* Using Self-test Mode to Diagnose the Keypad/Display Board 1.
Checking the Display TROUBLESHOOTING AN ASR-10 WITH NO LEDS LIT connections making YES NO I Check Kevboard/KPC YES Are the disulav voltages correct? (53 on Dower suoolv) NO Test the Dower su~ulv unloaded.
Checking the Display ALL LEDS LIT, NO DISPLAY TROUBLESHOOTING AN ASR-10 WITH ALL LEDS LIT, NO DISPLAY Are the power supply z voltages correct? YES * Force the unit into self-test mode Jumper the negative (left) side Cl9 to Din 13 of U20. NO Reulace the KevboardXPC imulator board (see Section 18 Repair and retest.
Kevboard and Footswitch Inuuts The ASR-10 Keyboard and the KPC Simulator Board The Poly-Key-r~ Pressure Keyboard on the ASR-10 (and the KPC simulator board on the Rack) is a complex module that contains its own computer and software. So, when necessary, you will be swapping it out as a whole unit. Display information sent to and from the digital board is processed through the keyboard/KPC simulator. What might appear to be a frozen display, therefore, could be a bad keyboard/KPC simulator.
ASR-88 Kevboard ASR-88 KEYBOARD The ASR-88 uses the same keyboard as the KT-88 that has “bubble” switches, the ASR-88 keyboard is only different in the adapter board. Instead of mechanical switches, this keyboard has a molded rubber bubble under each key. The keyboard circuit board has conductive carbon contacts printed on it (which appear as small black strips under each key). Each rubber bubble also has small conductive carbon dots printed on the inside.
ASR-88 Keyboard If only one key is bad (or if groups of keys are bad but not in groups of eight or every eighth key), the problem could be any of the above. The first thing to do is remove the key and see if there is anything obviously wrong with the bubble: Look for damage to the bubble itself. If the bubble is damaged, the circuit board must be removed so the strip can be replaced. Check that the bubble strip is seated flat against the circuit board.
ASR-88 Keyboard Pressure Response Problems The ASR-88 keyboard, like the KT-88 and TS-12, has mono pressure response. This allows a modulation effect to increase as you press harder on a key. Pressing harder on any key will affect all other keys. To produce mono pressure, two pressure sensitive strips are inside the keyboard assembly. Pressing on a key exerts a downward pressure on the strips. Two strips are used because of the large 88note span.
Error Messages ERROR MESSAGES Occasional error messages are not unusual, and unless they become chronic, they are not a cause for concern. It is important to realize that these messages are diagnostics and do not necessarily indicate a problem. These messages were designed to help our software engineers in the development of the software, not as hardware diagnostics.
Error MessaPes 05 current info in DIR buffer is not valid data 06 current info in FAT buffer is not valid data 17 file size greater than limit = 33 Mbytes 32-35 and 40*-44 NEC PD 72069 errors *Please note that error 40 error 040 are separate errors. Error 40 is always a disk controller or disk drive related problem. Error 040 is always an ESP problem.
Sofhyare Notes ASR-1 O/88 SOFIWARE NOTES The O.S. version on the disk can be easily updated (call ENSONIQ Customer Service for the latest O.S. version). You cannot copy the O.S. to a disk onto which you have already saved instruments or sequences, but not the O.S. Attempts to do so will result in an error message. To Check the ASR-10 Software Version: Press Command, then Env 1. The display shows NO COMMANDS ON PAGE.
So&are Notes Special note on making copies of the Operating System (O.S.) disk: The code that loads the O.S. from disk at bootup is stored in the ROMs. 1 .OO ROMs made some assumptions about the location and format of the O.S. on the disk. For that reason, there are some limitations that we must impose when using the COPY OS TO DISK command to copy an O.S. from one disk to another. Generally, if the O.S. that you are copying is the same version that you are running with, you will have no problems.
So&are Notes l Press EnteraYes. always show 1. The display shows KEYBOARD VERSION ZZZ. For the Rack, this will Version 1.25 disk (released 8 FEB 93) For ASR-10 Keyboards ONLY. This disk is only compatible with 1.00 ROMS. This is not u typical O.S. Release? This OS. update is intended for customers who have a keyboard with 1.00 ROMs but do not need or want the SCSI kit. (When they buy SCSI, they automatically get 1.50 ROMs if they don’t have them.
Software Notes Version 1.50 disk (released 28 JAN 93) This release contains some minor improvements and fixes for problems that have been discovered since the version 1.20 disk. The unit must have version 1SOB O.S. ROMs to use this disk. This is the original release for the Rack. NEW FEATURE ENTER PLAYS KEY feature has been added to this release. The Enter button can be used to trigger sample playback. For more details, see the 1 SO Manual Addendum.
Software Notes B. the destination disk does not already contain an operating system later than version 1.25 (i.e. 1 SO or 1.60). We still recommend using the COPY DISK command if users want to copy an Operating System that is different from the one that is currently running. LOAD BANK or LOAD SONG file had a problem that could cause the machine to lock up or crash when loading songs into the ASR-10 if those songs or banks were originally created and saved on an EPS or EPS 16 PLUS.
So*are Notes default to 01 .Ol), the unit located to an invalid location (Bar 384.04). Pressing continue caused the Bar count to run on to 999. This problem has been fixed. Potential delay before entering SAMPLING or CREATE NEW INSTRUMENT: If the ASR has to SHUFFLE memory before entering Sarnplin g, no message was being displayed. The ASR remained frozen on a display while memory was being shuffled, though it did collect button presses. Until the shuffling completed, the unit appeared to be locked up.
Soflware Notes Sample playback “skipping” occurs when playing back RAMTRACK audiosamples or regular wavesamples which are greater than 2M samples at 3OKHz. This problem can occur on any unit which has SM or 10M or ram. All other memory configurations work fine. The skipping usually starts at 43 seconds into the sample. The result is that the system will play random chunks of its sound ram (including the Operating System space which sounds like bursts of noise). Fixed.
Software Notes New Feature: Import non-ASR Instruments The ASR- 10 will now import and play sounds from the AKAI and Roland libraries. Unlike other programs that only load wavesample data and loop information, the ASR-10 conversion takes place at the AKAI program level and the Roland Patch level. Parameters such as velocity switchin g, layering, filters, etc are translated to native ASR- 10 instrument format. The new imported instrument can now be saved or edited just like any other ASR-10 instrument.
SOB-ware Notes FILE OPERATION ERROR message when using COPY FLOPPY DISK command. When the COPY FLOPPY DISK Command is forced to erase all memory to copy a disk (such as when all memory is used), the ASR displayed a FILE OPERATION ERROR the first time that the command was invoked. Running the command again resulted in normal operation. Fixed in Version 3.00. Improper formatting of destination disk when using COPY FLOPPY DISK command.
Sofhvare Notes VOICE: MINI mode - no sound: Layer glide mode = MINI was not dealing with simultaneous key downs properly. When multiple notes went down at the same time, the result would be no audio output. (Granted, this mode dictates that you play monophonically. But if you played a chord you should hear at least one note sound.) This problem originated in Beta version 2.72. It is now fixed.
ASR Test Procedure AM-TEST PROCEDURE The following procedure will aid in troubleshooting the unit. To do the following tests you will need a MIDI cable, a Dual Foot Switch (model SW-5/10), and a Control Voltage Pedal (model CVP-1). The ASR-10 should be connected to a sound system in stereo. 1. Power Up and Load in Sounds a ) Turn unit on.
ASR Test Procedure xxx = # of times the test passed, yyy = # of times the test failed e) Press Cancel*No to stop the test. The display shows: MIDI LOOP f) Disconnect the MIDI cable. * If it fails, check the following: MIDI cable connection and digital jack board to digital board cable. 5. Analog Page a) Press Command, then Envl. b) Press the right arrow button until the display shows EXAMINE ANALOG INPUT. c) Press EnteraYes. d) Move the data entry slider to the bottom of its range.
ASR Test Procedure o) Press CancebNo to exit this page. * If any one fails, check connections to the appropriate module. If they all fail, the digital board is possibly at fault. 6. Disk Check a ) Select MOOG POP 1 (press Instrument*Sequence Track 3). b) Press Command, Instrument. c) Press the right arrow button until the display shows SAVE INSTRUMENT d) Press EntereYes. The display will show NAME=MOOG POP 1. e ) Press the down arrow button to change the name to LOOG POP 1. f) Press Enter*Yes.
ASR Test Procedure m) Press EntereYes. The display will read PICK SAMPLE INSTRUMENT. n> Press Instrument*Sequence Track 8. The Level Detect VU screen will appear. Since the input level should be the same as that of the last sample, there is no need to readjust the Input Level knob. Press Enter*Yes. The display reads WAITING XXX SEC LEFT. This number will vary, depending on the length of your initial sample. P) Clearly speak into the microphone.
Analog Jock Board Keypod/Disploy Board / Keyboord Assembly
Revlacina ASR-1 O/88 Modules Replacing the Digital Board Removing Installing 1. Remove all cables connected to the ASR-10, including the power cord. 2. Turn the unit upside-down and remove all the screws from the base and rear panel. 3.
ReDlacina ASR-I O/88 Modules 0 0 1E S‘P Ill JlO J9 [ J8 0 0 56 J5 c two screwinto heat sink7 54 OTTO El J7 J2 L-l O.S. Expansioq J u m p e r t-t Four SIMM sockets :1 a =mounting screw location Figure 17 ASR- 10 Digital Board ISECTION I B Replacing the Analog Board R e m o v i n g 1 . Remove all cables connected to the ASR-10, including the power cord. 2. Turn the unit upside-down and remove all the screws from the base and rear panel. 3.
ReDiacinP ASR-I O/88 Modules lsECTi0N I I c Removing Replacing the Power Supply Board 1. 2. 3. 4. 5. 6. 7. 8. _ IMPORTANT! Installing Remove all cables connected to the ASR- 10, including the power cord. Turn the unit upside-down and remove all the screws from the base and rear panel. Remove the digital board (see Section A). Remove the digital jack board (see Section F).
Replacing ASR-I O/88 Modules Replacing the Keypad/Display Board Removing 1. 2. 3. 4. 5. 6. 7. 8. 9. Remove all cables connected to the ASR-10, including the power cord. Remove the volume and data entry knobs. Turn the unit upside-down and remove all the screws from the base and rear panel. Remove the digital board (see Section A). Remove the digital jack board (see Section F). If installed, remove the SCSI board (see Section K). Remove the analog board (see Section B).
ReDlack! ASR-1 O/88 Modules 16. Connect Jl 24-pin ribbon cable and J2 7-pin power cable to the keypad/display board. Make sure to do this before installing the keypad/display board because the connectors are difficult to reach once the board is installed. 17. Place the keypad/display board into the unit. Make sure that the buttons are through the holes in the front panel. Make sure that the slider bucket legs (for the volume and data entry pots) are through the holes in the keypad/display board. 18.
Replacing ASR-I O/88 Modules M3.5~19 0 0 moun&ng screws 0 a 43 M3.5x7.5 mounting screws E Keytips side 0 a a 0 0 0 kevboard connector Figure 20 ASR- 10 Keyboard Mounting Bracket Replacing the Keyboard (ASR-88) 1. Remove all cables connected to the ASR-88 including the power cord 2. Turn the unit upside-down and remove all the screws from the base and rear panel. 3. Remove the digital board (see Section A). 4. Remove the analog board (see section B) 5. Remove the SCSI board (see section K) 6.
ReDlacina ASR-I O/88 Modules d. The long narrow bracket that was connected to the first bracket you removed. There should be just one screw holding this bracket in place at this point. e. The bracket that is secured to the front of the ASR frame and the center mount of the keyboard assembly. There are two screws securing this bracket to the front of the ASR frame, and one screw securing it to the keyboard assembly. 5 The bracket that the digital board heat sink mounts to.
Reulacina ASR-I O/88 Modules a) J8 - 20-pin ribbon cable, and b) J7 - lo-pin ribbon cable. 5. Remove the four (4) screws that hold the analog jack board to the I/O bracket. 6. Lift the left end above the analog bracket and slide the jacks, pot, and switch out of holes in the I/O bracket. 7. Point the 57 corner of the board toward the keypad/display board and lift the analog jack bord out of the unit jacks first. 8. Slide the jack edge of the board into the proper holes on the I./O bracket. 9.
Replacinn ASR-1 O/88 Modules Installing d) T7 - red wire to the line filter. 4. Remove the two (2) flat head screws from the line filter. 5. Pull the line filter through its hole in the I/O bracket to the outside of the unit. Let it hang by the wires. You should now be able to reach the transformer bracket screws. 6. Remove the four (4) #8 screws that hold the transformer bracket to the unit. 7. Remove the transformer and transformer bracket from the unit. 8.
Replacing ASR-I O/88 Modules Installing and Removing the SCSI Board Installing 1. Remove all cables connected to the ASR-10, including the power cord. 2. Turn the unit upside-down and remove all the screws from the base and rear panel. 3. Disconnect both ends of the 34-pin ribbon cable that connect the digital board (J6) to the analog board (Jl). 4. Remove the two (2) KEPs nuts (nuts with star washers attached) that hold the SCSI opening bracket to the I./O bracket.
Replacinn ASR-I O/88 Modules 2) Make sure that the insulation completely covers and slightly overhands the mounting tab. b) If disconnecting the 20-pin ribbon cable from J4 on the analog board doesn’t fix the problem, there is a problem with the tape insulation on an analog board mounting location. 1) Remove the analog board as described in Section B. 2) Make sure that the tape insulation completely covers, and slightly overhangs, the analog board mounting locations.
Replacing ASR-I O/88 Modules Remove any cable clips beneath e DI-10 Board 0 / 0 Mylar Insulator between disk drive ca Ie and Didtal I/O Board / / DI-10 - Digital I/O Board ve through rounded cable clamp Analog Jack Board I I J9 Digitrh I/O Digital Jack Board \\ Analog Main Board Power Cable Figure 23 - Installing a DI-10 Board into an ASR-10 Keyboard Unit NOTE: If you accidentally put the board on in the wrong way, it may be removed by pushing in the center tab of each plastic standoff.
Replacing ASR-1 O/88 Modules Replacing the O.S. EPROMs The ASR-10 operating system can be updated by replacing the O.S. EPROMs. Each ASR-10 has two Operating System EPROMs located on the digital board near the OTTO chip (U29). R e m o v i n g 1 . Remove all cables connected to the ASR-10, including the power cord. 2. Turn the unit upside-down and remove all the screws from the base and rear panel. Installing 3.
Replacing ASR- I O/88 Modules Replacing the Wheel Assembly Removing 1. Remove all cables connected to the ASR-10, including the power cord. 2. Turn the unit upside-down and remove all the screws from the base and rear panel. 3. Disconnect the 6-pin cable from the patch select/wheel board (small board near the wheels). 4. Remove the four (4) screws from the wheel brackets (2 from each bracket).
‘--$ /----,- Figure 24 - ASR-1OR ASR Service Manual Exploded View 55
Replacing ASR Rack Modules - Replacing the Rack Digital Board Removing Installing NOTE: 1. Remove all cables connected to the ASR-10 Rack, including the power cord. 2. Remove the lid (see below). 3. The digital main board is the large board on top that you see when the lid is off.
Replacing ASR Rack Modules REATTACHING THE LID IMPORTANT! Installing Be sure to install all screws with a hand screwdriver to avoid stripping the holes. ASR-10 Racks with serial numbers between 10000 and 10500, the rack ear screw PEMs (screw mounting standoffs) may fall inside the unit. 1.
Replacing ASR Rack Modules 9. Install the four (4) SEMs into the analog board heatsink. 10. Reconnect the cables (see step 5). 11. Install OEX-6sr board (see Section N). 12. Install the PCB Mounting Bracket: a) Connect the 26-pin rear panel connector cable into Jl of the SCSI board, b) Slide entire assembly toward the back of the unit.
ReDlacina ASR Rack Modules 9. Reinstall the power supply screws. Carefully reconnect the four cables and six wires, paying particular attention to the alignment of pins and connectors. 10. Install the PCB Mounting Bracket: a ) Connect the 26-pin rear panel connector cable into Jl of the SCSI board, b) Slide entire assembly toward the back of the unit.
Replacing ASR Rack Modules Replacing the Rack KPC Simulator Board Removing 1. 2. 3. 4. Installing 5. 6. 7. 8. Remove all cables connected to the ASR-10 Rack, including the power cord. Remove the lid (see Section A). Disconnect the 20-pin ribbon cable from the IWC simulator board. Pop the KPC simulator board from the four white standoffs by squeezing the standoffs. If this is difficult, you can remove the front panel (see Section D).
Replacing ASR Rack Modules Installing NOTE: 5. Disconnect 20-pin ribbon cable from J8 of the analog jack board: 6. Remove the four (4) 6-32 machine screws that hold the board to the PCB Mounting Bracket tabs, and remove the board from the unit. 7. Insert the jacks and pot into the holes on the rear panel. You may want to use a drop of Loctite screws that hold the circuit boards if nylock screws are not used (see Mechanical Issues). 8.
Replacing ASR Rack Modules 1 SECTION Replacing the Rack Transformer I Removing Installing 1. 2. 3. 4. 5. 6. 7. 8. 9. Remove all cables connected to the ASR-10 Rack, including the power cord. Remove the lid (see Section A). Remove the PCB Mounting Bracket (see Section 0). Disconnect the transformer cables and wires to the power supply. Remove the four screws and flat washers that hold the transformer in place. Insert the new transformer and attach it to the base using the four screws and flat washers.
Replacing ASR Rack Modules El SECTION Replacing the Rack SCSI Board K Removing 1. 2. 3. 4. 5. Installing 6. 7. 8. 9. Remove all cables connected to the ASR- 10 Rack, including the power cord. Remove the lid (see Section A). Remove the PCB Mounting Bracket (see Section 0). Disconnect the following cables from the SCSI board (16901): a) 34-pin ribbon cables from 52 and 54, and b) 26-pin ribbon cables from Jl and J3.
Revlacina ASR Rack Modules run dual shielded cable on top of ledge Figure 25 - Top Side of the ASR-10 Rack PCB Mounting Bracket 6. Connect the 20-pin ribbon to 53 of the DI-10 board (single bend end) and the other side to J9 on the digital board (double bend end). 7. Plug one end of the dual shielded cable onto Jl on the DI-10 board. This connector is keyed so it will only go on one way. 8. Run the cable down between the DI-10 and SCSI boards.
Replacing ASR Rack Modules Replacing the Rack O.S. EPROMs R e m o v i n g 1 . Remove all cables connected to the ASR-10 Rack, including the power cord. 3-. Remove the lid (see Section A). Installing 3. The two Operating System EPROMs, LOWER (U19) and UPPER (U22), are located in the center of the digital board next to the OTTO chip (see Figure 15). Carefully remove the two EPROMs and insert the replacement EPROMs into their respective sockets.
ReDhCinQ ASR Rack Modules SECTION 0 I Removing Installing NOTE: Replacing the PCB Mounting Bracket 1 1. 2. 3. 4. 5. Remove all cables connected to the ASR-10 Rack, including the power cord. Remove the lid (see Section A). Disconnect the 20-pin ribbon cable from Jl of the digital board. Disconnect the 34-pin ribbon cable from JlO of the digital board. Disconnect the 20-pin ribbon cable from the J7 location of the digital board.
SIMM Information Important Information about SlMMs An important Note About Electrostatic Discharge SIMMs are susceptible to Electrostatic Discharge (ESD) commonly known as “static.” Electrostatic Discharge can destroy or damage SIMMs. To minimize the possibility of causing ESD damage, here are some procedures you can follow when installing SIMMs: 1) Before installing SIMMs, you should be grounded by using a ground strap to discharge any static electric charge built up on your body.
SIMM Information What Changed? The newer board can accept 2 chip and 8 chip memory parts. The older board can only use the 8 chip parts. Since the 2 chip parts are becoming more common (and possibly less expensive) we redesigned the board to allow you to use them. How to Tell Which Rev Board You Have The old rev board looks like this: Jumper is connected for STANDARD SIMM Memory. Move to the other pins when using Expansion SIMM Slots.
SIMM Information Are they DRAM SIMMs? When adding memory, only install DRAM SIMMs in the expansion slots. The ASR will not accept static RAM or ROMs. How Many DRAM Chips (New Rev)? It doesn’t matter how many (what size) DRAM chips are on the SIMM. The 1 MegaByte SIMiMs can be based on either 1 Megabit (8 chips) or 4 Megabit ( 2 chips) DRAM chips and the 4 MegaByte SIMMs can be based on either 4 Megabit (8 chips) or 16 Megabit (2 chips) DRAM chips.
SIMM Infonnation SIMM Size Jumpers (2) are set to 1 M (1 MegaByte SIMMS). Move the jumpers to the 4M positions when changing to 4 MegaByte SIMMS. - Jumper is connected for STANDARD SIMM Memory. Move to the other pins when using expansion SIMM slots. - Two 1 MegaByte SlMMs - Expansion slots are empty Figure 29 - SIMM Access on the new Rev Board You will notice that there are two slots with SIMMs installed, and two slots that are empty.
SIMM Information SIMM Size Jumpers are connected to the 1M pi Memory Expansion Jumper is connected to the STD (Standard) pins x SIMM Size Jumpers are connected to the 1 M pins Memory Expansion Jumper is connected to the Expansion) pins Four 1 -MegaByte SlMMs - Expansion slots 1-1 empty 3 2 MegaBytes 4 MegaBytes This is the way ASR-10 Keyboards and Racks are shipped from ENSONIQ SIMM Size Jumpers are connected to the 4M pins Memory Expansion Jumper is connected to the STD (Standard) pins s 8 MegaBy
SIMM Information You will notice that there are two slots with SIMMs installed, and two slots that are empty. These empty slots are called Expansion SIMM Slots, and are used for adding additional SIMMs (when expanding the memory). Directly above the Standard SIMM Slots, you will find the Memory Expansion Jumper. About the Memory Expansion Jumper The Memory Expansion Jumper allows you to access the information in the Expansion SIMM Slots.
SIMM Information To Remove a SIMM from a SIMM Socket: Bend thetwo retaining pods out of the way... just far enough to remove the SIMM Figure 34 - Removing SIMMs l l CarefuZZy spread open the retaining posts found on each end of the SIMM. Only spread the posts as far apart as needed to clear the board; these posts can easily break if too much force is applied. If broken, it will be very difficult to secure a new SIMM back into that socket.
SCSI Infomtion SCSI Information SCSI Cables - SCSI cables are available from computer stores in a price range from about $12 to $50. Usually the less expensive cables cut comers on materials and they may become unreliable. It is worth the extra money to purchase a good SCSI cable. Most SCSI drives come with a 25-pin to 50-pin cable. Cramolin - We recommend using Cramolin Red on SCSI cable connections. It is a continuity enhancer that makes connections more reliable. It costs about $20 for a 2 oz.
SCSI Infomation NOT AN EPS SCSI DEV l What to do: The SCSI device selected is not an ASR-10 formatted storage device, and cannot be used by the ASR-10, or a non-ENSONIQ CD ROM is loaded in a connected CD ROM drive. You may choose to reformat the SCSI drive for use with the ASR-10. Use caution, as this will erase all previously saved data on the SCSI drive. The CD will work if it is the proper Roland or Akai format.
Digital I/O Information Digital I/O Information The ASR-10 must have O.S. EPROMs version 1SOB or higher for an optional DI-10 Digital I/O Interface board to work. The optional DI-10 Digital I/O Interface board (S/PDIF) allows the customer to move sound data directly into or out of the ASR-10 without going through additional A/D or D/A conversion. It provides direct Digital Input and Output connection to and from the ASR-10 using RCA-type connectors. It also can provide direct 44.
OEX-6sr Information OEX-6sr Information The OEX-6sr is a multi-function digital device that adds six individual outputs or three additional pairs of stereo outputs to an ASR-10 Keyboard or EPS-16 PLUS keyboard. The OEX-6sr comes standard on the ASR- 10 Rack. The OEX-6sr enhances the capabilities and flexibility of the ASR- lO/EPS- 16 PLUS. The power of the OEX-6sr Output Expander lies in its unique configuration: six individual outputs or three stereo pairs (AUX 1, AUX 2, AUX 3).
NOTES
Glossan GLOSSARY Composite SIMMs KEPS Nylock Screw PEMs Scribe SCSI SEMs SIMMS Termination SIMMs that contain more than one size of RAM chip. These SIMMs may also contain GAL (Gate Array Logic) or PAL (Programmable Array Logic) chips. Do not use these SIMMs in an ASR product. Nuts with star washers attached A screw with a patch of nylon on the threads for greater holding power. Threaded mounting standoff for screws. An angled tool, useful for disconnecting cables without damaging them.
ENSONIQ Customer Service Hours: Monday through Friday 9:30 AM to 6:30 PM Eastern Time Closed for lunch 12:15 PM to 1:15 PM Parts ordering: U.S. 4 l-800-441-1003 (Confidential) Canada s 1-514-633-8877 ENSONIQ Fax: l-610-647-8908 Customer Tech Support: l-610-647-3930” *This is the phone number to give customers that want to contact ENSONIQ directly (U.S.A).
