Chapter 3 TRUE AND FALSE ECHOES ON DISPLAY 3.1 RADAR WAVE WITH THE HORIZON Chapter 3 TRUE AND FALSE ECHOES ON DISPLAY The radar operator has a role of interpreting the radar displays to provide his best aid in maneuvering the ship. For this purpose, the operator has to observe the radar displays after fully understanding the advantages and disadvantages that the radar has.
Chapter 3 TRUE AND FALSE ECHOES ON DISPLAY 3.1 RADAR WAVE WITH THE HORIZON When the height of own ship's scanner is 10 m for instance, (a) A target that can be detected at the radar range of 64 nm on the radar display is required to have a height of 660 m or more. (b) If the height of a target is 10 m, the radar range has to be approx. 15 nm.
Chapter 3 TRUE AND FALSE ECHOES ON DISPLAY 3.2 REFLECTION FROM TARGET 3.2 REFLECTION FROM TARGET The signal intensity reflected from a target depends not only on the height and size of the target but also on its material and shape. The echo intensity from a higher and larger target is not always higher in general. In particular, the echo from a coast line is affected by the geographic conditions of the coast.
Chapter 3 TRUE AND FALSE ECHOES ON DISPLAY 3.3 SEA CLUTTER AND RAIN AND SNOW CLUTTER 3.3 SEA CLUTTER AND RAIN AND SNOW CLUTTER In addition to the echo required for observing ships and land radar video image also includes unnecessary echo, such as reflection from waves on the sea surface and reflection from rain and snow.
Chapter 3 TRUE AND FALSE ECHOES ON DISPLAY 3.4 FALSE ECHOES 3.4 FALSE ECHOES The radar observer may be embarrassed with some echoes that do not exist actually. These false echoes appear by the following causes that are well known: 3.4.1 SHADOW When the radar scanner is installed near a funnel or mast, the echo of a target that exists in the direction of the funnel or mast cannot appear on the radar display because the radar beam is reflected on the funnel or mast.
Chapter 3 TRUE AND FALSE ECHOES ON DISPLAY 3.4 FALSE ECHOES Fig. 3.4-2 Direct microwave HL Actual target Radar scanner Funnel Secondary reflection of microwave False echo from funnel 3.4.4 FALSE ECHO BY MULTIPLE REFLECTION When there is a large structure or ship with a high vertical surface near own ship as shown in Fig. 3.4-3, multiple refection returns may appear on the radar display. These echoes appear in the same intervals, of which the nearest echo is the true echo of the target. Fig. 3.
Chapter 3 TRUE AND FALSE ECHOES ON DISPLAY 3.4 FALSE ECHOES length is SP1 (on the repetition frequency of 2250 Hz), a false echo may appear at a position that is about 36 NM shorter than the actual distance. This type of false echo can be discriminated by changing over the range scale (the repetition frequency), because the distance of the target changes accordingly. If second time echo is appeared, the use of Economy mode in PRF menu is effective. Otherwise, Stagger Trigger menu set to on.
Chapter 3 TRUE AND FALSE ECHOES ON DISPLAY 3.5 DISPLAY OF RADAR TRANSPONDER (SART) 3.5 DISPLAY OF RADAR TRANSPONDER (SART) The SART (Search and rescue Radar Transponder) is a survival device authorized by the GMDSS (Global Maritime Distress and Safety System), which is used for locating survivors in case that a distress accident occurs at sea. The SART is designed to operate in the 9 GHz frequency band.
Chapter 4 MAINTENANCE 4.1 ROUTINE MAINTENANCE Chapter 4 MAINTENANCE 4.1 ROUTINE MAINTENANCE DANGER Never carry out internal inspection or repair work of the equipment by users. Inspection or repair work by unauthorized personnel may result in fire hazard or electric shock. For inspection and repair work of equipment components, consult with our branch office, branch shop, sales office, or our distributor in your district. When conducting maintenance, make sure to turn the main power off.
Chapter 4 MAINTENANCE 4.2 MAINTENANCE ON EACH UNIT 4.2 MAINTENANCE ON EACH UNIT 4.2.1 SCANNER UNIT NKE-2042, 2043, 2062/HS, 2063/HS, 2103-4/4HS/6/6HS DANGER When conducting maintenance work on the antenna, make sure to turn its main power off. Failure to comply may result in electrocution or injuries. Make sure to turn off the antenna operation switch. Failure to comply may result in injuries caused by physical contact with the rotating antenna. Do not touch the radiator.
Chapter 4 MAINTENANCE 4.
Chapter 4 MAINTENANCE 4.2 MAINTENANCE ON EACH UNIT Radiator Note: z If the radiator front face (radiation plane) is soiled with smoke, salt, dust, paint or birds’ droppings, wipe it with a piece of soft cloth wetted with alcohol or water and try to keep it clean at all times. Otherwise, radar beam radiation may attenuate or reflect on it, resulting in deterioration of radar performance. z Never use solvents of gasoline, benzine, trichloroethylene and ketone for cleaning.
Chapter 4 MAINTENANCE 4.2 MAINTENANCE ON EACH UNIT Table 4.2-1 List of replacement carbon brushes Scanner unit model name Item name Model name Replacement quantity JRC code JMA-3316 Carbon brush 54531-01 BRXP05247 2 JMA-3336 Carbon brush 54531-01 BRXP05247 2 Mounting legs Check the mounting legs and mounting bolts of the scanner unit case for corrosion at intervals and maintain them to prevent danger.
Chapter 4 MAINTENANCE 4.3 PERFORMANCE CHECK 4.3 PERFORMANCE CHECK Make operational check on the radar equipment regularly and if any problem is found, investigate it immediately. Pay special attention to the high voltage sections in checking and take full care that no trouble is caused by any error or carelessness in measurement. Take note of the results of checking, which can be used effectively in the next check work. Operational check shall be made in accordance with Table 4.
Chapter 4 MAINTENANCE 4.3 PERFORMANCE CHECK 4.3.1 TEST MENU The performance status of this radar equipment can be checked on the Test Menu. "Test" operations 1 Open Test from the Main Menu. "Test" menu appears. 4.3.2 SYSTEM INFORMATION Displays the current system information (software version information). "System INFO" operations 1 Open Test - System Information . INSTRUCTION MANUAL 4 The software version is displayed.
Chapter 4 MAINTENANCE 4.3 PERFORMANCE CHECK 4.3.3 SYSTEM TIME Displays the following system time information. y Indicator Running Time y Scanner Transmit Time y Scanner Motor Time y Scanner Running Time "System Time" operations 1 Open Test - System Time . "System Time" menu appears. 4.3.4 SCANNER INFORMATION Displays the following scanner information. y Transmitted output power y Motor Type y Magnetron Current "Scanner Information" operations 1 Open Test - Scanner INFO .
Chapter 4 MAINTENANCE 4.3 PERFORMANCE CHECK 4.3.5 HARDWARE INFORMATION Displays the following hardware information. y Serial Number y MAC Address y Temperature "Hardware Information" operations 1 Open Test - Hardware Information . "Hardware Information" menu appears. 4.3.6 ERROR LOG The error log displays previously occurred system alarms with the dates and times when they occurred. 4 1 Open Test - INSTRUCTION MANUAL "Error Log" operations Error Log . "Error Log" menu appears.
Chapter 4 MAINTENANCE 4.3 PERFORMANCE CHECK Displaying Error Log 1 Open Error Log - Display . "Error Log" menu appears. For details of alarms, refer to "4.5.1 LIST OF ALARMS AND OTHER INDICATIONS". Erasing Error Log 1 Open Error Log - Erase . Yes No 4-10 : : Erases the error log. Does not erase the error log.
Chapter 4 MAINTENANCE 4.3 PERFORMANCE CHECK 4.3.7 LINE MONITOR Serial communication data can be seen on the built-in Line monitor. Line monitor can be used to make sure that the serial data are received properly. "Line Monitor" operations 1 Open Test - Line Monitor . "Line Monitor" menu appears. Receive Data: The received serial communication data are displayed. Send Data: The transmitted serial communication data are displayed.
Chapter 4 MAINTENANCE 4.3 PERFORMANCE CHECK 4.3.8 SELF TEST The following tests can be performed. y Key Test y Buzzer Test y Key Light Test y Monitor Display Test y Memory Test y Line Test y Sensor Test "Self Test" operations 1 Open Test - Self Test .
Chapter 4 MAINTENANCE 4.3 PERFORMANCE CHECK Key Test 1 Open Self Test - Key Test . Operation key video will be displayed. 4 When pressing each key, the corresponding operation key is color-inverted on the INSTRUCTION MANUAL display. Press the [CLEAR] key to turn off the operation keys. Buzzer Test 1 Open Self Test - Buzzer Test . The buzzer will sound. The buzzer automatically stops after it sounds for a certain time. The buzzer will sound regardless of the buzzer setting.
Chapter 4 MAINTENANCE 4.3 PERFORMANCE CHECK Monitor Display Test 1 Open Self Test - Monitor Display Test . Pattern1 : All colors are filled with white. Pattern2 : A white box is displayed on the black background of 1024 × 768 dots. Pattern3 : Displays rectangle × 2, circle × 2, and cross-shape× 9 (white lines on the black background). Pattern4 : Displays "H" of 9 dots × 9 dots on the entire screen (white character on the black background).
Chapter 4 MAINTENANCE 4.3 PERFORMANCE CHECK Memory Test 1 Open Self Test - Memory Test . When no abnormality is found, "OK" is displayed. When an abnormality is found, "NG" is displayed. Reference: More time may be required for USB detection in order to acquire "OK". Do not remove USB during memory test. Line Test 1 Open Self Test - Line Test . When no abnormality is found, "OK" is displayed. When an abnormality is found, "NG" is displayed.
Chapter 4 MAINTENANCE 4.3 PERFORMANCE CHECK Sensor Test 1 Open Self Test - Sensor Test . When no abnormality is found, "OK" is displayed. When an abnormality is found, "NG" is displayed.
Chapter 4 MAINTENANCE 4.4 REPLACEMENT OF MAJOR PARTS 4.4 REPLACEMENT OF MAJOR PARTS The system includes parts that need periodic replacement. The parts should be replaced as scheduled. Use of parts over their service life can cause a system failure. WARNING Direct exposure to electromagnetic waves at close range will have adverse effects on the human body.
Chapter 4 MAINTENANCE 4.4 REPLACEMENT OF MAJOR PARTS Parts Required for Periodic Replacement Here are parts required for periodic replacement. Part name 4-18 Interval 1. Magnetron 4,000 hours 2. Motor 10,000 hours 3. LCD backlight 50,000 hours 4.
Chapter 4 MAINTENANCE 4.5 FAULT FINDING 4.5 FAULT FINDING In case of semiconductor circuits, it is deemed that there are few cases in which the used semiconductor devices have inferior quality or performance deterioration except due to insufficient design or inspection or by other external and artificial causes. In general, the relatively many causes are disconnection in a high-value resistor due to moisture, a defective variable resistor and poor contact of a switch or relay.
Chapter 4 MAINTENANCE 4.5 FAULT FINDING Alarm name Alarm name (Japanese) (English) ✵୰⥺ ࢹ࣮ࢱ Scanner(Data) Class Description Alarm Collision occurs when transmitting data to the scanner. Checksum of the received data is different. ✵୰⥺ EEPROM Scanner(EEPROM) Alarm Stored value error is returned from the scanner when the initial adjustment data is requested. The save operation is not completed when data save is requested to scanner EEPROM.
Chapter 4 MAINTENANCE 4.5 FAULT FINDING Alarm name Alarm name (Japanese) (English) ࣟࢢ ↓㏻ಙ Log(Time Out) Class Description Alarm For speed equipment=log, cannot receive valid sentences (including checksum error) which had been received properly. ࢪࣕࣟ ㏻ಙࢹ࣮ࢱ GYRO(Data) Alarm For heading equipment=Gyro, the GYRO error bit of NSK communication data is set. ࣟࢢ ㏻ಙࢹ࣮ࢱ Log(Data) Alarm For speed equipment=log, the LOG error bit of NSK communication data is set.
Chapter 4 MAINTENANCE 4.
Chapter 4 MAINTENANCE 4.5 FAULT FINDING Alarm name Alarm name (Japanese) (English) AIS 㺏㺵㺎㺯 032 AIS(Alarm 032) Class Description Alarm For AIS function=On, an error from the AIS receiver is received (ALR) AIS 㺏㺵㺎㺯 035 AIS(Alarm 035) Alarm For AIS function=On, an error from the AIS receiver is received (ALR) Table 4.5-5 Notification list Alarm name Alarm name (Japanese) (English) Class Description ࢪࣕࣟタᐃ Set Gyro Status Requires setting of true bearing.
Chapter 4 MAINTENANCE 4.5 FAULT FINDING Alarm name Alarm name (Japanese) (English) ᖹ⾜⥺࣮࢝ࢯࣝ㡿ᇦእ P-CURS(Out) Class Description Status The floating position of the parallel cursor in the latitude/longitude floating setting is out of the radius of PPI Table 4.
Chapter 4 MAINTENANCE 4.
Chapter 4 MAINTENANCE 4.5 FAULT FINDING Alarm name Alarm name (Japanese) (English) ᪉/⦋ᗘ⤒ᗘ ↓ࡋ No HDG/POSN Data Class Description Status Cursor operations when own heading or latitude/longitude is disabled y MOB input y Event mark input y Inputting/erasing/moving marks y Inputting/erasing/moving/inserting lines y Floating position setting for EBL latitude/longitude. y Floating position setting for VRM latitude/longitude.
Chapter 4 MAINTENANCE 4.5 FAULT FINDING Alarm name Alarm name (Japanese) (English) ࢫࢱࣥࣂ୰࡛ࡍ Scanner Standby Class Description Status The functions which are available only during transmitting are operated during standby (or preheating). y Setting Timed TX to on. Cursor operations during standby (no graphic display is available). y Custom position setting for off center. y Inputting/erasing/moving marks y Inputting/erasing/moving/inserting lines y Floating position setting for EBL.
Chapter 4 MAINTENANCE 4.5 FAULT FINDING 4.5.2 FUSE CHECKING Melted fuses are caused by any clear cause. When a fuse is replaced, it is necessary to check the related circuits even if there is no trouble. In checking, note that there is some dispersion in the fusing characteristics. Table 4.5-8 shows a list of fuses used in the equipment. Table 4.5-8 Fuse List Location Parts No.
Chapter 4 MAINTENANCE 4.5 FAULT FINDING Fuse Locations Fuse locations are shown below.
Chapter 4 MAINTENANCE 4.6 TROUBLE SHOOTING 4.6 TROUBLE SHOOTING As this radar equipment includes complicated circuits, it is necessary to request a specialist engineer for repair or instructions for remedy if any circuit is defective. There are also troubles by the following causes, which should be referred to in checking or repair work.
Chapter 4 MAINTENANCE 4.6 TROUBLE SHOOTING 7ZXRD0013 : Scanner NKE-2062/HS (6kW) Name/Type Fuse ST4-6.3AN1 Parts No. F2 Code Shape (mm) 6.35 5ZFCA00051 Quantity F2 Fuse ST4-5AN1 F3 6.35 5ZFCA00047 4 4 NKE-2062/HS Inside (DC24V) processing unit For the modulator 4 NKE-2062/HS Inside For the scanner processing unit motor 2 Scanner 31.8 6.35 5ZFCA00050 31.8 Carbon brush 54531-01 – 8.0 BRXP05247 Application NKE-2062 Inside (DC12V) processing unit For the modulator 31.
Chapter 4 MAINTENANCE 4.6 TROUBLE SHOOTING 7ZXRD0028 : Display unit NDC-2182 Code Connector P3 LTWBD-06BFFALL7001 5JCDX00032 Connector P5 LTWBD-08BFFALL7001 5JCDX00034 Shape (mm) Spare Location 44.0 18.0 Parts No. Application 1 Inside processing unit Mainly for GPS connection 1 Inside processing unit Mainly for connecting course equipment such as a GPS compass 44.0 18.0 Name/Type For AIS connection 4-32 44.0 5JCD00033 18.
Chapter 4 MAINTENANCE 4.6 TROUBLE SHOOTING 4.6.2 SPECIAL PARTS Table 4.6-2 Special Parts JMA-3314 Parts No. Name Type Code Manufacturer Location V201 Magnetron MSF1421B 5VMAA00049 NJRC Scanner A101 Circulator FCX68 6AJRD00001 Toshiba Scanner A102 Diode Limiter NJS6930 5EZAA00024 NJRC Scanner JMA-3334 Parts No.
Chapter 4 MAINTENANCE 4.6 TROUBLE SHOOTING 4.6.3 CIRCUIT BLOCK TO BE REPAIRED Table 4.
Chapter 4 MAINTENANCE 4.
Chapter 4 MAINTENANCE 4.
Chapter 5 AFTER-SALES SERVICE 5.1 KEEPING PERIOD OF MAINTENANCE PARTS Chapter 5 AFTER-SALES SERVICE 5.1 KEEPING PERIOD OF MAINTENANCE PARTS Keeping period of maintenance parts is ten years from the production is discontinued. 5.2 WHEN YOU REQUEST FOR REPAIR If you suppose the product may be out of order, read the description in "4.5 FAULT FINDING" and "4.6 TROUBLE SHOOTING", and check the suspected point again.
Chapter 5 AFTER-SALES SERVICE 5.
Chapter 6 DISPOSAL 6.1 DISPOSAL OF THE UNIT Chapter 6 DISPOSAL 6.1 DISPOSAL OF THE UNIT When disposing of this unit, be sure to follow the local laws and regulations for the place of disposal.
Chapter 6 DISPOSAL 6.2 DISPOSAL OF USED MAGNETRON 6.2 DISPOSAL OF USED MAGNETRON Magnetron is used in the Scanner (NKE-2103). z When the magnetron is replaced with a new one, return the used magnetron to our dealer or business office. For detail, consult with our dealer or business office. 6.
Chapter 7 SPECIFICATIONS 7.1 GENERAL SPECIFICATIONS Chapter 7 SPECIFICATIONS 7.1 GENERAL SPECIFICATIONS (1) Class of Emission P0N (2) Display Color Raster Scan (3) Display capability VGA (4) Screen 10.4-inch Color LCD Effective diameter of radar echo, more than 150 mm (5) Range Scale 0.125, 0.25, 0.5, 0.75, 1.5, 3, 6, 12, 24, 48, 72 NM User can add 0.0625, 1, 2, 4, 8, 16, 32 or 64 NM. * Off Center is not available at 64, 72NM.
Chapter 7 SPECIFICATIONS 7.1 GENERAL SPECIFICATIONS (13) Power Consumption In calm wind: Approx. 60W (NKE-2042) Approx. 60W (NKE-2043) Approx. 85W (NKE-2062) Approx. 85W (NKE-2063) Approx. 85W (NKE-2062HS) Approx. 85W (NKE-2063HS) Approx. 100W (NKE-2103-4) Approx. 100W (NKE-2103-4HS) Approx. 100W (NKE-2103-6) Approx. 100W (NKE-2103-6HS) Maximum (Velocity of the wind: 100 kn): Approx. 60W (NKE-2042) Approx. 60W (NKE-2043) Approx. 230W (NKE-2062) Approx. 180W (NKE-2063) Approx. 230W (NKE-2062HS) Approx.
Chapter 7 SPECIFICATIONS 7.2 SCANNER 7.2 SCANNER NKE-2042 (1) Dimensions Height 275mmDiameter of radome 620mm (2) Mass Approx. 10.5kg (3) Polarization Horizontal Polarization (4) Directional Characteristic Horizontal Beam Width (-3dB): 2° Vertical Beam Width (-3dB): 25° Sidelobe Level: -21dB or less (less than ±10° from the main lobe) (5) Rotation Approx.
Chapter 7 SPECIFICATIONS 7.2 SCANNER 7.2.2 NKE-2043 (1) Dimensions Height 275mmDiameter of radome 620mm (2) Mass Approx. 10kg (3) Polarization Horizontal Polarization (4) Directional Characteristic Horizontal Beam Width (-3dB): 4° Vertical Beam Width (-3dB): 25° Sidelobe Level: (5) Rotation -21dB or less (less than ±10° from the main lobe) Approx.
Chapter 7 SPECIFICATIONS 7.2 SCANNER NKE-2062/HS (1) Dimensions Height 432mmSwing Circle 1220mm (2) Mass Approx. 24kg (3) Polarization Horizontal Polarization (4) Directional Characteristic Horizontal Beam Width (-3dB): 2° Vertical Beam Width (-3dB): 30° Sidelobe Level: -23dB or less (less than ±10° from the main lobe) -26dB or less (±10° or more from the main lobe) (5) Rotation Approx. 27rpm (NKE-2062) Approx.
Chapter 7 SPECIFICATIONS 7.
Chapter 7 SPECIFICATIONS 7.2 SCANNER NKE-2063/HS (1) Dimensions Height 419.5mmSwing Circle 1220mm (2) Mass Approx. 21kg (3) Polarization Horizontal Polarization (4) Directional Characteristic Horizontal Beam Width (-3dB): 2° Vertical Beam Width (-3dB): 30° Sidelobe Level: -23dB or less (less than ±10° from the main lobe) -26dB or less (±10° or more from the main lobe) (5) Rotation Approx. 27rpm (NKE-2063) (16/17.4/19/20.6/22.2/23.8/25.4/27rpm can be set) Approx.
Chapter 7 SPECIFICATIONS 7.2 SCANNER (12) Intermediate Frequency Amplifier Intermediate Frequency: 60MHz Band Width: 20MHz (0.08 s, 0.13 s) 6MHz (0.25Ps) 3MHz (0.5 s, 0.8 s, 1.
Chapter 7 SPECIFICATIONS 7.2 SCANNER NKE-2103-4/6/4HS/6HS (1) Dimensions Height: approx. 458 mm Swing Circle: approx. 1,285mm (4ft) Height: approx. 458 mm Swing Circle: approx. 1910 mm (6ft) (2) Mass Approx. 38 kg (4ft) Approx. 40 kg (6ft) (3) Polarization Horizontal Polarization (4) Directional Characteristic Horizontal Beam Width (-3dB) 1.8° (4ft) 1.
Chapter 7 SPECIFICATIONS 7.2 SCANNER (11) Front End Module MIC (12) Intermediate Frequency Amplifier Intermediate Frequency: 60MHz Band Width: 20MHz (0.08Ps) 6MHz (0.25Ps, 0.5Ps) 3MHz (0.8Ps, 1.0Ps) More than 90dB Amplifying Characteristics: Logarithmic Amplifier (13) Overall Noise Figure 7.
Chapter 7 SPECIFICATIONS 7.3 DISPLAY UNIT 7.3 DISPLAY UNIT INTEGRATED DISPLAY UNIT (NCD-2182) (1) Structure Desk Top Integrated Type (LCD Monitor Unit/Keyboard Unit/Processor Unit Integrated Structure) Vertical installation only desk top integrated type (2) Dimensions Desktop installation Height 310mm × Width 328mm × Depth 130.5mm Flush-mounting Height 290mm × Width 297mm × Depth 120mm (3) Mass Approx.
Chapter 7 SPECIFICATIONS 7.3 DISPLAY UNIT When the motion is switched (between RM (T) and TM), true motion trails is transition. * When switching to true/relative trails, the radar trails are cleared.
Chapter 7 SPECIFICATIONS 7.3 DISPLAY UNIT 7.3.2 OPERATION PANEL (1) Structure Integrated on the display unit (2) Controls GAIN SEA RAIN MULTI Cursor keys (3) Keys STBY Stops transmission (Turns off the equipment if simultaneously pressed with "TX/PRF") TX/PRF Starts transmission (Turns off the equipment if simultaneously pressed with "STBY") Changes PRF during transmission. Clears SHM when held down. Increases the distance range. RANGE- Decreases the distance range.
Chapter 7 SPECIFICATIONS 7.3 DISPLAY UNIT 7.3.4 TT FUNCTION (1) Acquisition MANUAL/AUTO (by automatic acquisition/activation zone) (2) Tracking 10 targets (Automatic tracking) (3) Display Tracking data 1 ship (AIS or TT) Maximum tracking range 20 NM This varies depending on the range. Target information Displays items selected from true bearing, distance, true course, true speed, CPA, TCPA.
Chapter 7 SPECIFICATIONS 7.4 INPUT/OUTPUT SIGNAL 7.4 INPUT/OUTPUT SIGNAL 7.4.
Chapter 7 SPECIFICATIONS 7.5 STANDARD CONFIGURATION 7.
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INDEX INDEX 㸿 㹄 Adjusting scanner....................................................2-54 Fault finding ............................................................4-19 AIS................................................................... 2-34, 2-73 File operations .......................................................2-146 AIS Alarm.............................................................. 2-127 Function key .................................................. 2-112, 3-4 AIS Display Target ...
INDEX 㹎 Symbol DISP............................................................2-67 System information...................................................4-7 Panel............................................................................2-2 System time ...............................................................4-8 Parallel cursor................................................ 2-26, 2-88 Plotter..................................................................... 2-135 㹒 Power on/off ...........
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