NCR 7194 Service Manual
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NCR 7194 Service Manual

NCR 7194 Service Manual

Thermal receipt printer
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NCR 7194 Thermal Receipt
Printer
Release 1.0

Service Guide

B005-0000-1098
Issue D

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Summary of Contents for NCR 7194

  • Page 1: Service Guide

    NCR 7194 Thermal Receipt Printer Release 1.0 Service Guide B005-0000-1098 Issue D...
  • Page 2 NCR, therefore, reserves the right to change specifications without prior notice. All features, functions, and operations described herein may not be marketed by NCR in all parts of the world. In some instances, photographs are of equipment prototypes. Therefore, before using this document, consult with your NCR representative or NCR office for information that is applicable and current.
  • Page 3 Low Voltage), non-energy hazard output, limited energy source, input rated 100-240 Vac, 1.5/0.8 A, 50/60 Hz, output rated 24 Vdc, 2.3 A. Use of this product with a power supply other than the NCR power supply will require you to test this power supply and NCR printer for FCC and CE mark certification.
  • Page 4 How to Obtain More Information For more information about the 7194 printer and to order the following documentation, please contact your NCR supplier: • 7194 Thermal Receipt Printer: Owner’s Guide (B005-0000-1097)

  • Page 5: Table Of Contents

    Service Guide Table of Contents Chapter 1: Technical Specifications Reliability ....................1-1 Power Requirements................1-2 Environmental Conditions ..............1-3 Dimensions and Weight...............1-4 Printing Specifications................1-5 Density of Receipt Print Lines.............1-6 Duty Cycle Restrictions (Printing Solid Blocks) .......1-7 Allowable Duty Cycle (measured over one minute of continuous printing) ..............1-8 Chapter 2: Diagnostics and Configuration Startup Diagnostics................2-2...
  • Page 6 Service Guide Printing Problems................3-2 Printer Does Not Function ............3-5 Chapter 4: Servicing the Printer Tools Required..................4-1 Service Procedure Map.................4-2 1, 2: Removing or Accessing the PC Control Board ......4-3 Procedure..................4-4 Re-installing the Control PC Board..........4-7 3, 4: Removing the Options PC Board..........4-9 Procedure..................4-9 Re-installing the Options PC Board ...........4-10 5, 6: Removing the Rear Cover and Platen ........4-11...
  • Page 7 Service Guide Re-installing the Paper Out Switch, Knife Home Switch, and Cover Open Switch...............4-27 17: Removing the Rotating Knife Blade ...........4-28 Procedure..................4-28 Re-installing the Rotating Knife Blade ........4-29 Cleaning the Printer................4-30 Cleaning the Printhead ..............4-30 Revision Record Issue Date Remarks Nov 98 First issue Mar 99...
  • Page 8 NCR is not responsible for any radio or television interference caused by unauthorized modification of this equipment or the substitution or attachment of connecting cables and equipment other than those specified by NCR.

  • Page 9: Chapter 1: Technical Specifications

    Technical Specifications Chapter 1: Reliability 45 Million Lines Thermal mechanism 1.5 Million Cuts Knife...

  • Page 10: Power Requirements

    Chapter 1: Technical Specifications Power Requirements The printer receives power either from the host system (integrated) or from a separate in-line power supply (remote) which can be purchased separately Power from Host (Integrated) Voltage 24 Vdc ± 10% +5 Volts for Logic Circuits Amps 2 Amps Maximum Current Draw Power from Power Supply (Remote) 55 Watts...

  • Page 11: Environmental Conditions

    Chapter 1: Technical Specifications Environmental Conditions Without Knife 5°C to 35°C (41°F to 95°F) 35°C to 50°C (95°F to Operating Temperature 5% to 90% 122°F) Operating Humidity 5% to 40% With Knife 5°C to 28°C (41°F to 82°F) 28°C to 45°C (82°F to Operating Temperature 10% to 90% 113°F)

  • Page 12: Dimensions And Weight

    Chapter 1: Technical Specifications Dimensions and Weight 135 mm (5.34 inches) Height 216 mm (8.53 inches) Height with cover open 144 mm (5.66 inches) Width 184 mm (7.24 inches) Depth 1.3 kg (2.9 pounds) Weight...

  • Page 13: Printing Specifications

    Chapter 1: Technical Specifications Printing Specifications 38.4 Lines per Second (Standard Spacing) Speed Direct Thermal, Fixed Head, 640 Dots Printhead (576 Addressable – 80.0 mm) (640 Addressable – 82.5 mm) 130 mm per Second (Maximum) Paper Feed...

  • Page 14: Density Of Receipt Print Lines

    Caution: Choose an energy level no higher than necessary to achieve a dark printout. Failure to observe this rule may result in a printer service call or voiding of the printer warranty. Consult your NCR technical support specialist if you have any questions.

  • Page 15: Duty Cycle Restrictions (Printing Solid Blocks)

    Chapter 1: Technical Specifications Duty Cycle Restrictions (Printing Solid Blocks) There are restrictions on the duty cycle because of the heat generated by the thermal printhead when printing solid blocks (regardless of the length of the block in relation to the print line). The restrictions are ambient temperature, the percentage of time (measured against one minute) of continuous solid printing, and the amount of coverage.

  • Page 16: Allowable Duty Cycle (Measured Over One Minute Of Continuous Printing)

    Chapter 1: Technical Specifications Allowable Duty Cycle (measured over one minute of continuous printing) Amount of Solid Coverage Ambient Temperature 25°C 35° C 50° C 100% 100% For reference: • A typical receipt with text (contains some blank spaces) is approximately 12% dot coverage.

  • Page 17: Chapter 2: Diagnostics And Configuration

    Diagnostics and Configuration Chapter 2: The following diagnostic tests are available. See the sections that follow for more information. • Startup Diagnostics Performed during the startup cycle. • Runtime Diagnostics Performed during normal printer operation. • Remote Diagnostics Maintained during normal operation and printed in the print test. The printer can be configured with the following settings and functions through the Configuration Menu that is printed on the receipt.

  • Page 18: Startup Diagnostics

    Chapter 2: Diagnostics and Configuration Startup Diagnostics When the printer receives power or performs a hardware reset, it automatically performs the Startup Diagnostics (also known as Level 0 Diagnostics) during the startup cycle. The following diagnostics are performed: • Turn off motors •...

  • Page 19: Runtime Diagnostics

    Voltages out of range The LED on the operator panel will signal when these conditions occur as well as indicate what state or mode the printer is in. For more information about See this section Operator panel LED NCR 7194 Troubleshooting...

  • Page 20: Remote Diagnostics

    Chapter 2: Diagnostics and Configuration Remote Diagnostics Remote diagnostics (sometimes called Level 3 Diagnostics) keeps track of the following tallies and prints them on the receipt during the print test. See the sample test printout on the next page. These tallies can be used to determine the printer’s state of health.
  • Page 21 Chapter 2: Diagnostics and Configuration...
  • Page 22 Chapter 2: Diagnostics and Configuration For more information about See this section Accessing the remote “7194 Programming Information” diagnostic tallies (Transmit Printer ID, Remote Diagnostics Extension, Hexadecimal 1D 49 40 n) in the NCR 7194 Owner’s Guide...

  • Page 23: Indicators

    Chapter 2: Diagnostics and Configuration Indicators The printer can communicate some conditions visually with the Green LED or audibly with a series of tones or beeps. The following table lists these indicators. Indicator Sequence Condition Continuous, flashing Paper out quickly Cover off Knife unable to home Continuous, flashing slowly...
  • Page 24 The printer is also able to communicate its status to the host application if the application has been programmed to receive this information. For more information about See this section Communication of printer status to “7194 Programming Information” (“Printer Status” commands) in host application the NCR 7194 Owner’s Guide...

  • Page 25: Printer Configuration

    Stop Bits • Parity • Hardware (DTR/DSR) or Software (XON/XOFF) Flow Control • Data Reception Errors • Printer Emulations • 7194 Native Mode • Epson TM-T88 • Printer Settings and Functions • Default Lines per Inch • Carriage Return Usage •...
  • Page 26 2-10 Chapter 2: Diagnostics and Configuration • Power Supply Wattage • Knife Options • Paper Low Sensor • Printhead Resistance Setting For more information about See this section Using the configuration menu to “Configuring the configure the printer Printer”...

  • Page 27: Configuring The Printer

    Chapter 2: Diagnostics and Configuration 2-11 Configuring the Printer The Configuration Menu allows you to select functions or change various settings for the printer. Instructions printed on the receipt guide you through the processes. Caution: Be extremely careful changing any of the printer settings to avoid changing other settings that might affect the performance of the printer.
  • Page 28 2-12 Chapter 2: Diagnostics and Configuration Reset Button Paper Feed Button Rear Cover 2. Open the Rear Cover. Insert paper roll as described in the Owner’s Manual. 3. Press the Reset Button. Close the cover while holding the Paper Feed Button. The printer beeps, prints the current configuration, then prints the first question.
  • Page 29 Chapter 2: Diagnostics and Configuration 2-13 4. Follow all the instructions on the scrolling menu. 5. Press the Paper Feed Button to make the selections. The instructions indicate whether to select something with a short click, a long click, or a series of short clicks. Indicate Yes with a long click, No with a short click.

  • Page 30: Communication Interface

    2-14 Chapter 2: Diagnostics and Configuration Communication Interface To change the Communication Interface settings, enter the Configuration Menu, select “Set Communication Interface” from the Main Menu and answer Yes to “SET INTERFACE TYPE?” printed on the receipt. Caution: Be extremely careful changing any of the printer settings to avoid inadvertently changing other settings that might affect the performance of the printer.
  • Page 31 Chapter 2: Diagnostics and Configuration 2-15 • 4800 baud: 6 clicks • 2400 baud: 7 clicks • 1200 baud: 8 clicks • Number of Data Bits • 8 Data Bits: Long click • 7 Data Bits: Short click • Stop Bits •...

  • Page 32: Printer Emulations

    Press the Paper Feed Button as instructed to select the printer emulation you want. • 7194 Native Mode: 1 click • Epson TM-T88: 3 clicks Note: Press the Paper Feed Button for at least one second to validate the selection.
  • Page 33 Warning: Choose a print density setting no higher than necessary to achieve acceptable print density. Failure to observe this rule may result in a printer service call. Failure to observe this rule may void the printer warranty. Consult your NCR technical support specialist if you have questions.

  • Page 34: Enable Or Disable Data Scope Mode

    2-18 Chapter 2: Diagnostics and Configuration • Power Supply Wattage You can choose between a 48 Watt, 55 Watt or 75 Watt power supply. • 48 Watt Power Supply: 1 click • 55 Watt Power Supply: 2 clicks • 75 Watt Power Supply: 3 clicks •...
  • Page 35 Chapter 2: Diagnostics and Configuration 2-19 Note: Data Scope Mode is usually considered a Level 1 diagnostic test. Data Scope Mode is enabled and disabled by selecting the “Diagnostic Modes” sub-menu of the Configuration Menu. Caution: Be extremely careful changing any of the printer settings to avoid inadvertently changing other settings that might affect the performance of the printer.
  • Page 36 2-20 Chapter 2: Diagnostics and Configuration 3. Exit the Configuration Menu. The printer is on-line and can communicate normally with the host computer. For more information about See this section Enabling the Data Scope Mode “Configuring the Printer”...

  • Page 37: Printhead Resistance

    Chapter 2: Diagnostics and Configuration 2-21 Printhead Resistance The printhead resistance settings are set by entering the Configuration Menu, selecting “Set Hardware Options” and answering No to the questions printed on the receipt until you come to “SET PRINTHEAD SETTING?”. The printhead resistance setting must match the character (A or B) stamped on the heatsink on the back of the printhead.
  • Page 38 2-22 Chapter 2: Diagnostics and Configuration...

  • Page 39: Chapter 3: Troubleshooting

    Possible Causes What to Do Where to Go Green LED, quick Paper out. Put in a new paper roll. 7194 Owner’s Guide continuous flashing. Cover off. Put the cover on. Knife unable to home. Check the knife. It may 7194 Service Guide need to be replaced.

  • Page 40: Printing Problems

    Chapter 3: Troubleshooting PC Board. Two-Tone Beep Main Program CRC Test Run Startup Diagnostics 7194 Service Guide (high frequency, low Failure. again. If this does not frequency) work, replace the Control PC Board. 7194 Service Guide Continuous flashing DIP Switch is in On Put DIP Switch in Off of LED.
  • Page 41 Knife Home Sensor. Sensor first, then the Knife Motor if problem still exists. Print is light or Printhead resistance not Adjust the printhead 7194 Service Guide spotty. properly set. resistance. Paper roll loaded Check that the paper is 7194 Owner’s Guide incorrectly.
  • Page 42 Chapter 3: Troubleshooting Problem Possible Causes What to Do Where to Go * Do not spray the thermal printhead with household cleaner as this may damage it and the electronics. The thermal printhead does not normally require cleaning if the recommended paper grades are used. If non- recommended paper has been used for an extended period of time, cleaning the printhead with rubbing alcohol and cotton swabs will not be of much benefit.

  • Page 43: Printer Does Not Function

    Possible Causes What to Do Where to Go Printer Does Not Printer not plugged in. Check that printer cables 7194 Service Guide Function. are properly connected on both ends. Make sure the ground wire is properly connected. 7194 Service Guide...
  • Page 44 Move the printer to a warmer location. the printhead to not function properly. Note: The printer will shut off when it is over or 7194 Service Guide under temperature. See the reference for the recommended temperature range. Failed PC Board. Replace the PC 7194 Service Guide Board.

  • Page 45: Chapter 4: Servicing The Printer

    Servicing the Printer Chapter 4: Tools Required • #1 Pozidriv screw driver • #2 Pozidriv screwdriver • Equivalent Phillips Screwdrivers • Flat-blade screwdriver...

  • Page 46: Service Procedure Map

    Chapter 4: Servicing the Printer Service Procedure Map 11 9 4 Printer Service Procedure Map 1. Remove the Base Plate 2. Remove or Access the Control Board 3. Remove the Rear Door 4. Remove the Options Board 5. Remove the Rear Cover 6.

  • Page 47: 1, 2: Removing Or Accessing The Pc Control Board

    Chapter 4: Servicing the Printer 1, 2: Removing or Accessing the PC Control Board The Control PC Board is accessed by removing the Base Plate of the printer. You will need to access the Control PC Board to disconnect wires connected to items you are removing, or to replace the Board because it may have become defective or you are upgrading the memory.

  • Page 48: Procedure

    Chapter 4: Servicing the Printer Procedure To Access the Control PC Board: Screw Base Plate 1. Open the Rear Cover and remove the paper from the printer. 2. Disconnect all the cables from the printer. Caution: Electrostatic Discharge could damage the Control or Options PC boards.
  • Page 49 Chapter 4: Servicing the Printer 5. From the right side, carefully swing the base plate out and towards the right to unhinge the left side of the plate from the tabs in the cabinet. (See page 7.) Lower the base plate away from the printer cabinet and lay it on a flat work surface.
  • Page 50 Chapter 4: Servicing the Printer To remove the Control PC Board: Screws Lock Washers Options Control PC Board PC Board Base Plate Screw Shield Lock Washer...

  • Page 51: Re-Installing The Control Pc Board

    Chapter 4: Servicing the Printer After accessing the Control PC Board and disconnecting all the wires: 1. Remove the two screws holding the Options PC Board to the Base Plate. 2. Unplug the Options PC Board from the Control PC Board and remove.
  • Page 52 Chapter 4: Servicing the Printer Tabs in Cabinet Slots in Base Plate Control PC Board Options PC Board Connector Control PC Board Connector Options PC Options PC Base Board Guides Board Plate...

  • Page 53: 3, 4: Removing The Options Pc Board

    Chapter 4: Servicing the Printer 3, 4: Removing the Options PC Board The Options PC Board can be replaced if it becomes defective, or should there be a need to change the communication interface. The Options Board can be accessed from the back of the printer by removing the Connector Cover.

  • Page 54: Re-Installing The Options Pc Board

    4-10 Chapter 4: Servicing the Printer Back of Printer Screws Options PC Board Base Mounting Plate Plate Connector Cover Re-installing the Options PC Board Reverse the procedures above to re-install the Options PC Board. Caution: When replacing the Options PC Board, ensure proper alignment of the Options PC Board connector with the connector on the Control PC Board.

  • Page 55: 5, 6: Removing The Rear Cover And Platen

    Chapter 4: Servicing the Printer 4-11 5, 6: Removing the Rear Cover and Platen The Rear Cover will need to be removed to replace the platen or to access the Fixed Knife Carrier Assembly. The Platen will need to be removed if it is worn or contaminated, or if a gear or the Paper guide becomes broken.

  • Page 56: Re-Installing The Rear Cover And Platen

    4-12 Chapter 4: Servicing the Printer Paper Guide Bearing Platen Gear Platen-Carrier Assembly Rear Cover Push out slightly to remove cover Re-installing the Rear Cover and Platen Reverse the previous procedure to re-install the Platen. 1. Re-install the Platen by snapping it into place, right-side bearing first, into the Platen-Carrier Assembly with the gear to the left.

  • Page 57: 7: Removing The Platen/Fixed Knife Carrier Assembly

    Chapter 4: Servicing the Printer 4-13 7: Removing the Platen/Fixed Knife Carrier Assembly The following information describes the procedure to service the Platen/Fixed Knife Carrier Assembly. The knife consists of two separate parts: the Fixed Knife Blade, within the Platen Carrier Assembly on the Rear Cover, and the Rotating Knife Blade located on the Thermal Mechanism.

  • Page 58: Procedure

    4-14 Chapter 4: Servicing the Printer Fixed Knife Blade within Platen Carrier Assembly Rotating Knife Blade on the Thermal Mechanism Rear Cover Procedure 1. Open Rear Cover and remove the paper from the printer. 2. Disconnect all the cables from the printer. Caution: Electrostatic Discharge could damage the Control or Options PC boards.

  • Page 59: Fixed Knife Blade/Platen-Carrier Assembly Removal

    Chapter 4: Servicing the Printer 4-15 2. Set the Rear Cover on a flat surface and remove the three screws and lock washers holding the Platen Carrier Assembly to the Rear Cover. (See illustration next page.) Rear Cover Platen-Carrier Assembly Lock Washer (3 Pls.) Screw (3 Pls.)

  • Page 60: 8, 9, 10, 11: Removing The Top Cover Assembly, Paper Feed Rod/Light Pipe, Reset Rod, And Paper Feed Button

    4-16 Chapter 4: Servicing the Printer 8, 9, 10, 11: Removing the Top Cover Assembly, Paper Feed Rod/Light Pipe, Reset Rod, and Paper Feed Button To remove or replace the Paper Feed Rod/Light Pipe, Reset Rod, and Paper Feed Button, you will need to remove the Top Cover Assembly. Tools: Flat-blade screwdriver Procedure (See illustration next page.) 1.
  • Page 61 Chapter 4: Servicing the Printer 4-17 Tab locations in Paper Bucket Paper Feed Button over Pinch Tabs Compression Spring Top Cover Assembly Hook Hook Paper Feed Rod/Light Pipe Reset Tabs Printer Base...

  • Page 62: Paper Feed Button

    4-18 Chapter 4: Servicing the Printer Re-installing the Paper Feed Rod/Light Pipe, Reset Rod, and Paper Feed Button To install the Paper Feed Button into the Top Cover Assembly: 1. Ensure Compression Spring is around the center tab of the button. 2.

  • Page 63: 12: Removing The Paper Low Sensor/Mount

    Chapter 4: Servicing the Printer 4-19 12: Removing the Paper Low Sensor/Mount Assembly/disassembly procedure to service the Paper Low Sensor/Mount. Tools: Flat-blade screwdriver Procedure (See illustration next page.) 1. Open the Rear Cover and remove the paper from the printer. 2.
  • Page 64 4-20 Chapter 4: Servicing the Printer Rear Cover Top Cover Assembly Hook Push Clips crew Hook Lock Washer Paper Low Sensor aper Low Tabs ount Printer Base...

  • Page 65: Re-Installing The Paper Low Sensor/Mount

    Chapter 4: Servicing the Printer 4-21 Re-installing the Paper Low Sensor/Mount To install the Paper Low Sensor/Mount: 1. If the Top Cover Assembly and Printer Base are still removed, complete the installation by going to step b. If not, remove the Top Cover Assembly and Printer Base.

  • Page 66: 13: Removing The Thermal Mechanism

    4-22 Chapter 4: Servicing the Printer 13: Removing the Thermal Mechanism Assembly/disassembly procedure to service the Thermal Mechanism. You must replace the entire mechanism if any individual part is faulty. The Platen-Carrier Assembly (part of the Top Cover Assembly and containing the Fixed Knife Blade) must be replaced whenever the Thermal Mechanism (containing the Rotating Knife Blade) is replaced.
  • Page 67 Chapter 4: Servicing the Printer 4-23 6. While supporting the Thermal Mechanism with one hand, remove the screw holding it to the Base Plate. (See illustration on next page.) Lay the Printer Base flat on the surface. 7. Remove the Ground Wire from the Tear Bar. 8.

  • Page 68: Re-Installing The Thermal Mechanism

    4-24 Chapter 4: Servicing the Printer Platen Carrier Assembly Rear Cover Top Cover Assembly Hook Thermal Hook Mechanism Tear Tabs Ground Wire Printer Base Screw Re-installing the Thermal Mechanism Reverse the procedures to re-install the Thermal Mechanism.

  • Page 69: 14, 15, 16: Removing The Paper Out Switch, Knife Home Switch, And Cover Open Switch

    Chapter 4: Servicing the Printer 4-25 14, 15, 16: Removing the Paper Out Switch, Knife Home Switch, and Cover Open Switch Assembly/disassembly procedure to service the Paper Out Switch, Knife Home Switch, and Cover Open Switch. Tools: Pozidriv #1, #2 Procedure 1.

  • Page 70: Re-Installing The Paper Out Switch, Knife Home Switch, And Cover Open Switch

    4-26 Chapter 4: Servicing the Printer 8. Lift the Thermal Mechanism up and out of the Base. 9. Remove the switch or switches. a. Paper Out Switch: Turn the Mechanism over. Pry out the two posts holding the switch in place. Pull the switch up and out rotating it slightly to allow the arm to clear.

  • Page 71: 17: Removing The Rotating Knife Blade

    Chapter 4: Servicing the Printer 4-27 17: Removing the Rotating Knife Blade Assembly/disassembly procedure to service the Rotating Knife Blade. Note: Whenever any part of the knife is replaced, both the Fixed Knife Blade (Platen Carrier) and Rotating Knife Blade must be replaced. See “Removing the Platen/Fixed Knife Carrier Assembly”...

  • Page 72: Re-Installing The Rotating Knife Blade

    4-28 Chapter 4: Servicing the Printer c. Push the Rotating Knife Blade towards the back until the Bearings snap free from the Thermal Mechanism. Lift the Rotating Knife Blade up and out. Thermal Rotating Mechanism Bearing Bearing Knife Blade Screw Actuating Arm (with Slot) Drive Gear...

  • Page 73: Cleaning The Printer

    Chapter 4: Servicing the Printer 4-29 Cleaning the Printer Clean the outside cabinet as needed to remove dust and finger marks. Use any household cleaner made for plastics. Test it first on a small unseen area. Clean the receipt paper bucket with a clean, damp cloth. The cabinet materials and finish are durable and resistant to the following items: •...
  • Page 74 4-30 Chapter 4: Servicing the Printer...
  • Page 75 Index RS-232C settings, 2-14 —A— Connector locations PC board, 4-5 Accessing Control board control board, 4-3 removing, accessing, 4-3 Control PC board —B— connector locations, 4-5 re-installing, 4-7 Beep. See tone Cover open switch re-installing, 4-26 —C— removing, 4-25 Carriage return usage, 2-17 Cleaning —D—...
  • Page 76 Index-2 removing, 4-9 —E— EEPROM —P— new, 2-2 Paper Environmental conditions, 1-3 out, 2-3 Paper feed button —I— re-installing, 4-18 Indicators, 2-7 removing, 4-16 Paper feed rod —K— re-installing, 4-18 removing, 4-16 Knife Paper jam, 3-2 failure of, 2-3 Paper Low, 3-1, 3-2 re-installing, 4-15 Paper low sensor, 2-18 removing, 4-13...
  • Page 77 Index-3 cleaning, 4-29 paper low sensor/mount, 4-21 configuration, 2-11 paper out switch, 4-26 cycles but does not print, 3-6 platen, 4-12 not functioning, 3-5 rear cover, 4-12 printing specifications, 1-5 rear door, 4-10 service procedure map, 4-2 reset rod, 4-18 tools for service, 4-1 rotating knife blade, 4-28 Printer configuration, 2-9...
  • Page 78 Index-4 Tone, 2-7 —S— indicating error, 3-2 Service procedure map, 4-2 two-tone beep, 3-2 Settings and functions, 2-16 Tools, 4-1 Specifications Top cover assembly printing, 1-5 removing, 4-16 Startup diagnostics, 2-2 —V— —T— Voltage Tallies. See remote diagnostics low or high, 2-3 Thermal mechanism re-installing, 4-24 —W—...

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