MBF COMPANY CONFIDENTIAL FIELD INFORMATION BULLETIN SERVICE GROUP(S): MICRO,MINI MFG: DIABLO NACS TYPE(S): 4202 MFG. MODEL(S): 1610,1620,1640,1641,1650 CATEGORY: PRINTER DESC: DAISY WHEEL *** TABLE OF CONTENTS AS OF 12/20/90 *** FIB 00001.GENERAL INFORMATION.........................................10/21/86 FIB 00002.Logic to Frame Ground Isolation Check/Fix...................04/01/82 FIB 00003.How to Change Baud Rate.....................................07/01/82 FIB 00004.Prom Loc. & Part # for HPRO2 Board Used on B/4 Model 3040 Pr05/22/87 FIB 00005.Parity-null errors on Basic Four 2000/3000 systems..........08/11/87 PRINTER-DIABLO-1610,1620,1640,1641,1650-------------Table Of Contents Pg01 of 01 FIB 00001 10/21/86 *** GENERAL INFORMATION *** GENERAL DESCRIPTION The Model 1610 Diablo Printer comes with microprocessor-driven electronics and an integral power supply, all contained in a table top unit. A full complement of optional features, including forms tractors, pin-feed platen, carbon ribbon, interchangeable type fonts, etc., are available. ELECTRONICS HPRO2 BOARD (Slot E): Contains most of the Terminal microprocessing system, including the 8080 microprocessing unit (MPU), the memory, several Input/ Output ports, and all control electronics. It also contains the Universal Synchronous/Asynchronous Receiver/Transmitter (USART) and the RS-232 interface components. 8080 INTERFACE BOARD (Slot A): Provides temporary storage for data and status information, and synchronizes the transfer of data from the terminal micro- processor to the printer microprocessor, and the transfer of status information back. It also contains some control logic for the servo feedback system and provides CLOCK A signal that drives the printer microprocessor. LOGIC 2 (Slot B): Contains the printer microprocessor system, which initiates movement of the printer carriage, printwheel, paper, and ribbon, and monitors feedback from the carriage and printwheel circuits to effect proper execution of these motion commands. It also maintains a record of the printwheel's absolute position at all times, it provides printer status information to the terminal microprocessor, and it performs other "housekeeping" functions. SERVO (Slot C): Receives printwheel and carriage motion commands from the printer microprocessor in digital form and converts these to analog signals representative of the distance and direction to be moved. XDCR BOARD (Slot G): Amplifies feedback signals, derived from the printwheel and carriage rotary transducers. PRINTWHEEL POWER AMPLIFIER (Slot H): Provides drive for the printwheel servo motor, the ribbon step motor, and the hammer-fire & ribbon-lift magnet coils. CARRIAGE POWER AMPLIFIER (Slot D): Drives the carriage servo motor and the paper feed motor. It also monitors the input voltages and developes the POWER ON signal to initiate the RESTORE operation. *** NACS MACHINE TYPES AND FEATURE NUMBERS *** 4206,9308,8688,9646,8689,9620,8044,8451,8452,854,9640,9647,9648 *** AVAILABLE DOCUMENTATION *** S-HDBK-276 Basic Four Model 3040 Character Printer Service Manual (8034A) S-HDBK-468 Hyterm Comm Term Model 1610/1620 Product Description SHDBK-948 1640/1650 PTR & TERM PARTS CATALOG SHDBK-949 1640/1650 PTR & TERM MAINTENANCE MANUAL SHDBK 945 1640/1650 PTR & TERM PRODUCT DESCRIPTION SHDBK-963 1640/1650 ADJUSTMENT GUIDE SHDBK-962 1641 PARTS CATALOG SHDBK-964 1641 MAINTENANCE MANUAL PRINTER-DIABLO-1610,1620,1640,1641,1650-------------FIB001 Pg001 SHDBK-966 1641 PRODUCT DESCRIPTION SHDBK-864 SERIES 1300 HYTYPE II MAINTENANCE MANUAL SHDBK-482 SERIES 1300 HYTYPE II PRODUCT DESCRIPTION SHDBK-981 MOD 1345A/1355HS/1355WP PARTS CATALOG *** AVAILABLE TRAINING *** MICRO PRINTER CLASS *** SPECIAL TOOLS *** TORX WRENCH T9, T15 *** SPECIAL ADMINISTRATIVE PROCEEDURES *** ORIGINATOR: J. O'Brien PRINTER-DIABLO-1610,1620,1640,1641,1650-------------FIB001 Pg002 FIB 00002 04/01/82 *** Logic to Frame Ground Isolation Check/Fix *** ORIGINAL DOCUMENT NAME = TSIB 04-332 TROUBLE ALERT All Diablo printers have been shipped with the frame ground tied to logic ground. When the printer is connected to a system a ground loop is created, this condition may adversely affect system operation. SOLUTION: Use an Ohmmeter to check between printer chassis and pin 7 on the EIA connector. Infinite resistance indicates the grounds are separated. A short means that logic ground and frame ground are tied together. To separate logic ground and frame ground do the following: 1. Unplug A.C. power cord. 2. Disconnect wire from terminal T2 on mother board, on right side of card cage in front of power supply connectors. 3. Insulate disconnected wire with insulating tape. ORIGINATOR: H. Montijo PRINTER-DIABLO-1610,1620,1640,1641,1650-------------FIB002 Pg001 FIB 00003 07/01/82 *** How to Change Baud Rate *** ORIGINAL DOCUMENT NAME : Mini Alert 43 SUBJECT: Diablo 1610 Baud Rate Select Model 1610 available baud rates are 300 and 1200 with 1200 as standard. To change to 300 baud, remove jumper at location B5 on HPRO2 PCBA (upper left corner below ribbon connector). Alternately, cut etch from E1 to E2 (adjacent J2) on the control panel PCBA (903018). ORIGINATOR: J. Rippl PRINTER-DIABLO-1610,1620,1640,1641,1650-------------FIB003 Pg001 FIB 00004 05/22/87 *** Prom Loc. & Part # for HPRO2 Board Used on B/4 Model 3040 Printer *** PROM LOCATION: A22 on HPRO2 Board (MM351010) PROM PART NUMBER: B/4 Number 165009-068 Sorbus Number YY009026 ORIGINATOR: J. O'Brien PRINTER-DIABLO-1610,1620,1640,1641,1650-------------FIB004 Pg001 FIB 00005 08/11/87 *** Parity-null errors on Basic Four 2000/3000 systems *** At startup and shutdown on the 2000 and 3000, both the software and hardware send out initialization signals to the 4-way and 8-way ports (the CMB is not affected). This causes either a Parity Error to be detected or question marks to be printed or both, on any Diablo-type printer (4202, 4206, 4211, 4215, 4216) that is connected to the port, powered up, and online. The software portion of this problem will be resolved on 7.3A. Both the 4-way and 8-way require firmware and hardware modifications to prevent characters from being transmitted. A Field Bulletin covering this will be issued when the ECN is approved. The workaround is to either leave the printers off line when the system is started up or shut down, or to be aware that one page will be sacrificed on each printer for every start up and shutdown. An alternate workaround is to connect the printer to the CMB, since it does not exhibit the problem. ORIGINATOR: T. Sears PRINTER-DIABLO-1610,1620,1640,1641,1650-------------FIB005 Pg001