MAI COMPANY CONFIDENTIAL FIELD INFORMATION BULLETIN SERVICE GROUP(S): MINI MFG: BASIC FOUR NACS TYPE(S): 4310 MFG. MODEL(S): 4310,EAGLE CATEGORY: VIDEO TERMINAL DESC: EAGLE 14" MONOCHROME *** TABLE OF CONTENTS AS OF 01/28/92 *** FIB 00001.General Information.........................................02/19/88 FIB 00002.Monitor parts identification information and part numbers...06/17/85 FIB 00003.Hardware flow control, slave printing with one-to-one cable.08/14/85 FIB 00004.Field replacement of communication ICs......................08/30/85 FIB 00005.A/C power cord loosening....................................10/22/85 FIB 00006.Graphics Board Option information...........................02/19/88 FIB 00007.Field Repair of VDT Power Supply (MM780130 & MM783010)......10/31/90 FIB 00008.Keyboard Cleaning and Repair................................01/10/92 VIDEO TERMINAL-BASIC FOUR-4310,EAGLE----------------Table Of Contents Pg01 of 01 FIB 00001 02/19/88 *** General Information *** The features of this machine are basically identical to those of the 4309 terminal, with the exception that this terminal has a 14" Monochrome CRT. The 4310 supports either a BFIS Slave Printer OR a Monochrome Graphics Option (but not both). The 4310 is not compatible to a Slave Printer attached via the MAI Basic Four Protocol Converter. *** NACS MACHINE TYPES AND FEATURE NUMBERS *** 4312,9312 *** AVAILABLE DOCUMENTATION *** Model 4310 Ergonomic Display Terminal Service Manual - S-HDBK-B53 *** AVAILABLE TRAINING *** Both Education Centers in 2000/3000 System classes. *** SPECIAL TOOLS *** None *** SPECIAL ADMINISTRATIVE PROCEDURES *** None ORIGINATOR: P. BADER VIDEO TERMINAL-BASIC FOUR-4310,EAGLE----------------FIB001 Pg001 FIB 00002 06/17/85 *** Monitor parts identification information and part numbers *** At the present time, two types of 14 inch Monitor Assemblies are being used by Basic Four manufacturing in the 14" EDT. The monitors are obtained from two vendors: C. Itoh and Dimerco. The monitors are interchangeable only as a complete assembly. The individual sub-assemblies are not interchangeable. The Monitor assembly consists of two sub-assemblies: The Monitor board and the CRT/Yoke assembly. When replacing any of the sub-assemblies, you must first identify the type of monitor before ordering a replacement part since individual parts from different vendors are not interchangeable. To identify the vendor, check the following markings: Description 14" C. Itoh Monitor 14" Dimerco Monitor CRT/ Yoke Assembly QB1488 on CRT CE791Z14K31VR on CRT DY-1201-06 on Yoke 455007-003 on Yoke Monitor board QQQ UPC538 DMS-M12-6, D.E.C.O. After identifying the type of monitor, order parts using the following ICNs: Description 14" C. Itoh Monitor 14" Dimerco Monitor Monitor Assembly MM780141 MM780140 CRT/Yoke Assembly MM788180 MM788170 Monitor board MM780170 MM780160 A copy of the Spare Parts Matrix for the EDT is attached. ORIGINATOR: J. VAN OORDT VIDEO TERMINAL-BASIC FOUR-4310,EAGLE----------------FIB002 Pg001 FIB 00003 08/14/85 *** Hardware flow control, slave printing with one-to-one cable *** ECNs are being implemented to allow use of a one-to-one cable when slave printing with hardware flow control. This change is normally done in the Repair Center, and should only be done to field machines on an as-needed basis. The change consists of adding "DATA SET READY", Pin 6 (Printer port conn.) in parallel with "DATA CARRIER DETECT", Pin 8 on the respective Logic Board. 903462-XXX 4312 EDT Jumper J4-6 to J4-8. LOGIC PCBA Indicate change on applicable drawings, MM780150 labeling J4-6 'BDSR+'. 903373-XXX 4309 EVDT Jumper J6-6 to J6-8. LOGIC PCBA Indicate change on applicable drawings, MM780010 labeling J6-6 'PDSR'. ORIGINATOR: J. VAN OORDT VIDEO TERMINAL-BASIC FOUR-4310,EAGLE----------------FIB003 Pg001 FIB 00004 08/30/85 *** Field replacement of communication ICs *** Problem: All controller boards with 1488 and 1489 Chips frequently fails during an electrical storm. Solution: These boards can be repaired in the field by replacing the Chips that are on the IC sockets. Order the Chips and keep them in your tool bags and replace them when one of the channels are not functioning. The IC Chip inventory control numbers are as follows: 1. OR999398 IC, 1488L 2. YY003599 IC, 1489 The following are the boards that have the 1488/1489 on IC sockets: 1. MM081018 901706 PCBA, 1 Channel Controller Board 13XX 2. MM081019 901708 PCBA, 4 Channel Controller Board 13XX 3. MM081020 901420 PCBA, 8 Channel Controller Board 13XX 4. MM361000 903271-001 PCBA, Tritel Logic Board 5. MM362070 903300-003 PCBA, Whisper Logic Board 6. MM531011 903441-002 PCBA, CMB 2000 7. MM531040 903390-001 PCBA, 4-Way Controller 2000 8. MM720010 901810 PCBA, 7230 Logic Board 7230 9. MM730010 901990-001 PCBA, 7250 Logic Board 7250 10. MM741020 903260-001 PCBA, 7270 Logic Board 7270 11. MM780010 903373-001 PCBA, EVDT Logic Board EVDT 12. MM780150 903462-001 PCBA, EDT Logic Board EDT 13. MM821020 903242-001 PCBA, 8 Channel Controller Board 13XX 14. MM831061 903149-002 PCBA, 1345 Accessory Board 13XX 15. MM871010 903179-003 PCBA, CPM/VDM Board MDT ORIGINATOR: E. Unten VIDEO TERMINAL-BASIC FOUR-4310,EAGLE----------------FIB004 Pg001 FIB 00005 10/22/85 *** A/C power cord loosening *** A long time problem on CRT devices, especially the units which have chassis that swivel or tilt, has been that of the power cord coming loose from the plug-in receptacle. Unless the customer is alert, this usually results in an unnecessary service call. An ECN has been announced with a simple preventive tie down, using a cable tie and a stick-back mounting pad. This will be implemented in the field only, on an "as-needed" basis, and will not be billed. Use YY006269, Cable Tie Mount, and YY005185, Cable Tie. Stick the mount to a convenient place on the chassis where the cord may be secured about 2-3" from where it plugs into the machine. Cleaning the surface area of the chassis with alcohol where the mount is to be attached will aid its adhesion. Leave just enough slack in the cord to relieve the strain at the connection yet still allow the machine to be unplugged without a struggle. ORIGINATOR: C. GAHAN VIDEO TERMINAL-BASIC FOUR-4310,EAGLE----------------FIB005 Pg001 FIB 00006 02/19/88 *** Graphics Board Option information *** Basic Four is selling an optional Graphics board for the EDT. This board is called the Monochrome Graphics board, and is an add-on that mounts piggy-back on the EDT Logic board. When the board is installed on the EDT, and used with an MBF 2000 System, the terminal becomes a graphics terminal able to function in several graphics modes. NOTE: WHEN THE GRAPHICS OPTION BOARD IS INSTALLED ON A 4310, A SLAVE PRINTER CANNOT BE USED ON THAT TERMINAL. NORMAL OPERATION OF THE.GRAPHICS OPTION (EVEN WHEN NOT IN USE) WILL CAUSE INTERMITTENT SLAVE PRINTER MALFUNCTIONS. The Graphics Board is disabled during power-up self-tests, and remains disabled until enabled by a graphics command. While disabled the Graphics board is transparent to the EDT (except for Slave Printer operation as stated above). Hardware Installation: o Prerequisites: o EDT Firmware at Rev. C or higher. To check firmware level display the terminal set-up menu. The last line contains the Firmware Revision Level. If new proms are needed order YY016273, YY016274 and YY016275. o Graphics Board Firmware at Rev. V1.4 or higher. To check the firmware level examine ICs at location U8 and U9. The label on the ICs contains the firmware revision level. o After checking the prerequisites, proceed as follows: 1. Remove EDT Logic board. 2. Remove 2 jumper plugs inside Logic board connector 'J1 Graphics'. Jumpers are located at the second and third positions from the top connecting pins 2 to 18 and 3 to 19. 3. Install the Graphics board on top of the Logic board inserting its connector into 'J1 Graphics'. Secure the graphics board to the EDT board using the 4 screws provided. 4. Disconnect any Slave Printer from that terminal and inform the User that it cannot be used while the Graphics Option is installed. A simple test to check the operation of the graphics board on the System 2000 is to load Basic, then type, and run the following program: Program: Comments: 10 PRINT 'CS' 20 PRINT 'ES',"ZG" [enable graphics board] 30 FOR L=1 TO 12 40 PRINT "GRAPHICS MODE" 50 NEXT L 60 PRINT 'ES',"Zg" [disable graphics board] 70 PRINT @(0,11),"NORMAL MODE" This program should print 12 lines of characters on Graphics Alpha Mode and one line on normal mode. Characters printed in graphics mode are smaller than characters printed on non-graphics mode. To clear the graphics characters left on the screen use a four key reset, press together SHIFT, CTRL, FUNCT and ESC keys. Field Reference Information: o Technical information on the Graphics board is contained in Service Manual VIDEO TERMINAL-BASIC FOUR-4310,EAGLE----------------FIB006 Pg001 BFISD 8080A or Monochrome Graphics Addendum to BFISD 8080P. o Graphics board P/N is MM788160 400568-001 PCBA, MONOCHROME GRAPHICS o EDT Firmware required by the Graphics board is Rev. C or higher. The firmware is contained in Proms at locations K1, M1, and N1. Base number of the Proms is 165051, the dash numbers are below: Loc. Rev.C Rev. D P/N K1 -007 -014 YY016273 M1 -008 -015 YY016274 N1 -009 -016 YY016275 SOFTWARE: The Graphics board, at the present time, operates with OS 7.1B*09 on 2000 systems. Basic Four sells a graphics application program for the System 2000 called GRF, Interactive Chart Designer and Business Chart Generator. This program generates graphics charts that may be printed on the EDT, the MVP printer or a plotter. ORIGINATOR: J. VAN OORDT VIDEO TERMINAL-BASIC FOUR-4310,EAGLE----------------FIB006 Pg002 FIB 00007 10/31/90 *** Field Repair of VDT Power Supply (MM780130 & MM783010) *** SYMPTOM: The power supply is outputting no power or low power (ex. + 5 Volts at + 4.75 Volts). PROBLEM DETERMINATION: The above failures may be caused by two components C8 (YY003315) and R26 (YY000877). These components may be ordered from Tustin, using the YY______ numbers. They may also be purchased locally, by using the following information: C8 (YY003315) - Capacitor, 220 UF, 25Volt, Radial Design (Cylinder shape 1/2" long X 5/16" diameter, with both leads coming out of the bottom end), Dielectric Cap. (Polarity must be observed, cap. will indicate negative (-) lead, also on new cap. shorter lead would be negative (-)). R26 (YY000877) - Resistor, 18K (Brown, gray, orange stripes would represent 18K ohm), 1/4 watt, 5 % (Gold stripe indicating 5 % tolerence), Carbon Filament (Resistor body is a 1/4" long). NOTE: Physical size of components is important, due to placement on PCBA. FIX: Replace C8 (Remember, polarity must be observed) and R26. Before replacing the components check the voltages at the supply using the diagram below. NOTE: In addition to the above symptom, if the +12vdc or -12vdc is over 13 volts then this supply is not a good candidate for this FIX. After replacement of the components re-check the voltages as indicated below. + 5.0vdc to + 5.3vdc + 11.9vdc to + 13vdc - 11.9vdc to - 13vdc :------------------------------/ | p14 |--- +5vdc | p13 |--- ground | 4 position pin connector p12 |--- +12vdc | p11 |--- -12vdc | :----| |p9 |--- +5vdc | |p8 |--- ground | Keyed power connector on MM780130 |p7 |--- +12vdc | Used in 4309,4310,4312,4313,4314 |p6 |--- -12vdc | | | | Hard-wired cable on MM781030 |p4 |--- +5vdc | Used in 4309 |p3 |--- ground | |p2 |--- +12vdc | |p1 |--- -12vdc | |----| | ~ ORIGINATOR: J.O'Brien, Mike Burch VIDEO TERMINAL-BASIC FOUR-4310,EAGLE----------------FIB007 Pg001 FIB 00008 01/10/92 *** Keyboard Cleaning and Repair *** Most of the keyboards sent back to Tustin for repair require only cleaning or minor repair, procedures which can easily be accomplished in the field. 1. Cleaning and simple repair should be attempted on ALL keyboards at the field level. This covers both "switch-type" keyboards, as well as "membrane-type". Keyboards should be repaired on-site, and where this is not possible, brought back to the office or stocking location and cleaned/repaired there. In general, the keyboards can be repaired by disassembling them, blowing-out or brushing off dust and debris, cleaning the PCBA using a foaming-type window cleaner (like aerosol Windex), brightening contact points by rubbing them with an eraser (Pink Pearl), and replacing any worn-out springs or pads Even the newer-style membrane keyboards (such as the DT4315, PSx30, etc.) usually fail because of dust or liquid contamination between the membrane layers preventing a key from making contact. Disassembling these keyboards is equally easy and the membranes can be cleaned by wiping them with a soft cloth dampened with window cleaner. 2. Several hundred keyboard repair kits were distributed throughout the field in the past. Replacement parts for these kits can be ordered through Tustin, part numbers are as follows: Parts for 7270, 4309, and 4312 keyboards. Spring, Spacebar YY013799 Spring, Print Key, Clear, Escape YY012913 Spring, All Others YY012914 Pad (foam/foil for each key) YY006594 Screws (hold PCBA to Keyboard) YY019809 3. After cleaning the keyboard and attempting simple repair, if the keyboard is still not working properly, return it to Tustin using the normal return process. 4. MM810041 (Grey 4312 keyboard) and MM810036 (Putty 4312 keyboard) are alternates for each other and should be treated as such. If you need the opposite color, take the time to switch the keycaps and enclosure rather than ordering another keyboard. (Estimated time of about 10 minutes to switch everything). 5. Effective February 1, 1991, the field will not be able to Code A the 4309 and 4312 keyboards from Tustin (P/N MM783020, MM810036, MM810041). ORIGINATOR: Norm Jones VIDEO TERMINAL-BASIC FOUR-4310,EAGLE----------------FIB008 Pg001