Thank you very much for purchasing the JRC JAX-9B Weather Facsimile Receiver. JAX-9B is designed to receive FAX broadcasting such as weather charts and marine charts transmitted in a high frequency band (2 to 25MHz) and record those on recording paper.
Before Operation Pictorial Indication In this Instruction Manual and on the product, we use various pictorial indications to handle the product safely and correctly and to prevent you from harming yourself and other people or damaging those properties beforehand. Meanings of the indications are shown below. Understand the meanings of signs before proceeding to read the main text.
Precautions Do not disassemble or remodel this equipment. Such action may cause a fire, electric shock, or malfunction of the equipment. Do not use any power supply voltage other than the specified one. Such an action may cause a fire, an electric shock, or equipment malfunction. Turn off power supply switch before connecting or disconnecting cables to any external equipment.
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JRC. The continued use of the equipment may cause a fire or electric shock. Be careful not to allow any wire dust or metallic pieces to get into the inside of JAX-9B. Otherwise, it may cause a fire, electric shock, or malfunction.
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Precautions Do not use organic solvents such as thinner or benzene to clean the surface. These agents can damage the surface coating. Remove dirt and dust on the surface if any and wipe it with a clean dry cloth. Use the recording paper (6ZPTS00108) as specified by JRC. The use of any other unspecified paper may cause recording density blurs, abnormal paper feed, much dust, resulting in the damage of the recording device.
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Precautions Turn on or off the POWER switch after waiting more than one second. Turning it back ON right after being turned OFF in no time may cause the equipment malfunction. Clean the thermal head with a piece of soft cloth always. Do not rub it with a screw driver or file.
Conntents Contents Preface ………………………………………………………….……………………..………………...……...i Before Operation …………………………………………..……….……………………..…………...……...ii Precautions …………………………………………………………….………...………..…………...……...iii Equipment Appearance ………………………………………………………….……...….………...……...vii Glossary ………………………………………………….…………………….…...………………….……... x Chapter 1 General Outline of Equipment..................1 Function ..........................1 Features..........................1 Components..........................3 Outline Drawings ........................4 System Diagram (220Vac) .....................5 Chapter 2 Names and Functions ..................... 7 Power Switch ........................7 Operation Panel ........................7 Control Dials........................
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Contents Reception of Facsimile Broadcasting ...................32 4.3.1 Turning on the Power....................32 Setting Receiving Frequencies ..................33 4.3.2 4.3.3 Setting Recording Mode....................37 Registration of Frequency Channel ..................42 Registering Frequency Channels ..................43 4.4.1 4.4.2 Deleting Registered Frequencies...................45 Printing List of Registered Frequency ................47 4.4.3 Timer Program Recording (Registration) ................48 Registration Timer Program ..................49...
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Conntents Chapter 5 Maintenance........................ 71 Replacing Recording Paper ....................71 Cleaning ..........................74 Replacing Backup Battery....................75 Troubleshooting ........................76 Chapter 6 Connection of GPS Receiver..................79 GPS Receiver Connection Interface..................79 Operation Check.........................80 Chapter 7 Optional Function......................81 Option Kit ..........................81 Setting Up Options......................81 Software for the PC......................82 Chapter 8 Operating Environment ....................
Start signal is the signal transmitted at the beginning of the facsimile Start signal broadcasting to indicate the start of the broadcast. JAX-9B uses it for the automatic setting of the index of cooperation (IOC) and starts the automatic recording by receiving this signal.
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Similar phase signal appears at the same position as the phase signal in the Similar phase signal image signal. Depending on broadcasting stations, it may not be included in the image signal. In JAX-9B, this signal is used for phase matching in the manual recording and forced recording.
MANU mode. 4)Programmed recording mode (TIMER) JAX-9B can perform unattended operations linked with the internal timer built in its main body by programming the program channel, start and stop times, startup mode, recording frequency and halftone recording.
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1.2.7 Automatic Time Correction By connecting a GPS receiver, the internal clock can be corrected automatically. 1.2.8 Displaying Received Image on PC (Option) JAX-9B outputs received image data to a Personal Computer. The PC is able to display a received image.
Junction box JQD-69C diameters Whip antenna (L=6MT) NAW-60 ______ Recording paper 6ZPTS00108 NOTE JAX-9B is shipped with a test recording paper roll and the antenna connector fitted in it. The rectifier unit makes 100VAC or 220VAC power supply available to JAX-9B.
Chapter 2 Names and Functions Chapter 2 Names and Functions 2.1 Power Switch The power switch is located on the back panel of JAX-9B. The power switch has three modes of ON / OFF / TIMER (timer program recording). 2.2 Operation Panel See the following before reading the explanation of each operational switch.
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Select Scan speed according to a Accepted; ③ SCAN broadcasting station. With an improper Scan speed, JAX-9B • MANU mode cannot start recording. An improper Scan speed will record • during Forced recording doubled-printing or overlapped–printing during Forced recording.
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Enables an external receiver (other than the receiver in JAX-9B) to receive the facsimile broadcasting. 2: EXT To return to using the receiver in JAX-9B, press the [#] + [EXT] again. "E" character on the lower right of the LCD indicates under the external receiver mode.
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2.2.2 Display Name Function Displays time, frequency, recording mode, operating status of JAX-9B, entry data during the ⑯ operation of each setting. Shows power mode by two LEDs. (ON / TIMER) •...
Chapter 2 Names and Functions 2.3 Control Dials Name Function ① SP VOL Adjusts the monitor volume of the receiver. SYNC Adjusts recorded images to be straight, when it is printed out slantingly. ② 2.4 Button for Opening a Cover of Recording Paper Right side of front panel Name Function...
Chapter 2 Names and Functions 2.5 LCD Display JAX-9B displays a recording mode and the operation status in the LCD. It is composed of the upper and lower row of 20 characters for each and 40 characters in total. 2.5.1 Startup When power is turned on, JAX-9B starts up with the previous recording mode and frequency that was displayed just before powered off.
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This field shows the scan speed (60, 90, 120, or 240). The above example shows Scan speed ③ 120. This field shows the current operating status of JAX-9B (RECORD or PHASE or ④ Operating status no display). The above example shows "Recording."...
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Chapter 2 Names and Functions Name Function This field shows "#" when you press “#” switch and accepted. The combined function will be accepted by pressing next switch ([REC], [REV], [EXT], [ATT], ⑦ # [4], [5], [7], [0], [DIM]). The "#" is cleared by activating a combined function. To clear the "#"...
Chapter 3 Installation Chapter 3 Installation Please request JRC service engineer for the installation and wiring work for JAX-9B Weather Facsimile Receiver on purchase. Do not use any power supply voltage other than the specified one. Such an action may cause a fire, an electric shock, or equipment malfunction.
Chapter 3 Installation 3.1 Installation Procedure 1) Press the [PUSH OPEN] button. The top cover opens. 2) While pressing the bottom of the front cover against the facsimile body, pull the top of the front cover toward you to open. 3) Remove the recording paper roll.
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MEMO antenna from JAX-9B. If JAX-9B is installed with a radio transmitting equipment such as a HF transceiver, the BK signal sent from the transceiver disconnects the antenna from JAX-9B and protects the internal receiver against the transmitting radio waves...
FG and the minus terminal of DC power supply is 0V. 2) Selection of FUSE The capacity of a fuse available to JAX-9B varies depending on the supply voltage. JAX-9B is equipped with 5A fuse at the factory. Select a proper fuse (among replacement fuses) according to the supply voltage and set it in the fuse holder.
Chapter 3 Installation 3.3 Changing Display Language Basically JAX-9B uses alphanumeric characters for labels and data on the LCD. Japanese characters are also available to JAX-9B. To use Japanese characters, take the following steps: 1) Changing display language on switches Stick attached Japanese labels on each corresponding switch.
Chapter 3 Installation 3.4 Connection of GPS Receiver The internal clock of JAX-9B can be automatically updated by time data received from the GPS receiver. However, because of the necessity for registering the time difference with the standard time (UTC) that the GPS receiver outputs, it is necessary to set the time of the internal clock manually only once after connecting to the GPS receiver.
Chapter 3 Installation 3.6 Installation Drawaing JAX-9B can be mounted on the wall or on the desktop. Secure space as shown in the figure below around JAX-9B for maintenance. Left and right space of the facsimile on the desktop Upper and rear side space of the facsimile on the desktop...
Chapter 3 Installation 3.7 Connection of Cables 3.7.1 Wiring of Standard Configurations...
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Chapter 3 Installation 3.7.2 Power Supply Wiring When Connecting to AC Power Supply (Option) J R C NBA-5143 AC IN DC24V OUT AC IN COM 100V 220V FG - + COM 100V 220V 1:Red 2:Blue 3:Green AC power supply 100Vac AC power supply 220Vac TB101...
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Chapter 3 Installation 3.7.3 Connecting to Personal Computer (Option) The installation method is described on the “Instruction Manual for Optional Software” in the separate volume.
Chapter 4 Operation Chapter 4 Operation This Chapter describes the operation procedure for receiving facsimile broadcasting in the following Sections: ● Selection and Setting of Receiving Frequency (Automatic Frequency Selection) ••••••••• ● Recording Modes ••••••••••••••••••••••••••••••••••••••• ● Reception of Facsimile Broadcasting ••••••••••••••••••••••••• ●...
JAX-9B Facsimile Equipment incorporates the functions of automatically selecting and setting the best received frequency of the specified frequencies (automatic frequency selection).
Total 90 frequencies 4.1.2 Automatic Frequency Selection Function This JAX-9B is designed to automatically select a frequency in the good receiving condition from all frequencies that are broadcasted from the same broadcasting station. If the receiving condition of a selected frequency becomes worse gradually, the equipment will automatically select another frequency in the good receiving condition.
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Chapter 4 Operation 2) Cautions for Using Automatic Frequency Selection Function • This function works when operating the internal receiver of this equipment. Thus, the function cannot be used in operating an external receiver. • Perform this function about one minute before the start of broadcast because a certain time is required for the comparison of the receiving conditions of all the frequencies registered in a same group and selection of the best frequency.
In this mode, JAX-9B automatically detects the control signal contained in the facsimile broadcasting signal, matches the receiving parameters and starts recording automatically. * JAX-9B will record all the programs that are being broadcasted on the preset receiving frequencies. * JAX-9B on the automatic receiving mode requires receiving a FAX program from the beginning of the broadcast.
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Chapter 4 Operation Manual Recording Mode Preset the receiving parameters. Recording will be started only when JAX-9B receives the broadcast matched with the preset parameters. * Parameters: Density (IOC) = 576 / 288 Speed (Scan speed) = 60 / 90 / 120 / 240 * JAX-9B can receive (record) a FAX program from the middle of broadcast.
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Chapter 4 Operation 4) Facsimile Broadcasting Signal It explains control signals included in the facsimile broadcasting signal. JAX-9B can determine the starting and finishing point of recording and receiving parameters by detecting these control signals. • Automatic Recording Mode: JAX-9B detects the start signal and the phase signal, then start recording.
* The timer program recording is described in Section 4.5. 4.3.1 Turning on the Power 1) Method of turning on the power Push down the main power switch to the right on the rear side of JAX-9B. 2) Panel Indicator • The POWER indicator lamp lights up.
Chapter 4 Operation 4.3.2 Setting Receiving Frequencies Input a receiving frequency in any of the following methods: • Direct Input of a Receiving Frequency Using Ten-key Switch ••••• a) • Setting a Receiving Frequency by Frequency Channel ••••••••• b) • Setting a Receiving Frequency by Group Channel •••••••••••• c)
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Chapter 4 Operation a) Direct Input of a Receiving Frequency Using Ten-key Switch Operational Procedure : Clear the indication of the receiving frequency. : Enter a receiving frequency. • Enter a receiving frequency in the unit of [kHz]. • Enter the frequency down to the 100Hz place (Enter it down to the first decimal place). The procedure of entering 7795.0 kHz is shown below for example.
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Chapter 4 Operation b) Setting a Receiving Frequency by Frequency Channel Operation Procedure : Set the mode to the frequency channel readout mode. : Enter a frequency channel number: “01-09”, “11-19”, ・・・・“91-99” are available. For example, the procedure of reading out a receiving frequency 3622.5 kHz registered in the channel “01”...
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Chapter 4 Operation c) Setting a Receiving Frequency by Group Channel Operation Procedure : Set the mode to the frequency channel readout mode. : Enter a group channel number: 10 groups of “00”, “10”・・・・“90” are available. If a group channel is read out, the automatic frequency selection function starts scanning the registered frequencies on the frequency channels in the selected group.
Chapter 4 Operation 4.3.3 Setting Recording Mode Select any of the following recording modes: • Setting Automatic Recording Mode •••••••••••••••• a) • Setting Manual Recording Mode •••••••••••••••••• b) • Starting Forced Recording •••••••••••••••••••••• c)
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• Receiving Stop signal The recording paper is fed and stops at the cut position. JAX-9B returns to the waiting status for the reception of the next broascast. : Recording stops when [MAN] switch is pressed twice during recording.
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• Setting of wrong IOC (density) makes the recorded image vertically expanded or contracted. • Recording will not start when the wrong Scan speed is set. • If Scan speed is changed during recording, JAX-9B will enter the status of waiting for phase and stop recording.
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Chapter 4 Operation c) Starting Forced Recording Start the recording in forced recording mode if the recording cannot be started in the manual recording mode. Operation Procedure : Set the recording mode to “MANU”. (The Automatic and the Manual recording modes are alternately switched over.) : Select IOC (density) and Scan speed.
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Chapter 4 Operation Switch Indication Description • Stop recording. Even if the image receiving stops, recording does not stop automatically. Stop recording by manual stop operation. Phase adjustment mode • A state that no phase matching is made though recording started →...
Chapter 4 Operation 4.4 Registration of Frequency Channel JAX-9B is capable of registering a total of 90 receiving frequencies in 10 groups of 9 frequencies in the memory. Table of frequency channel registration Group Channel Frequency Channel Automatic Frequency Selection Function...
Chapter 4 Operation 4.4.1 Registering Frequency Channels Operation Procedure : Clear the indication of a receiving frequency. : Enter a receiving frequency. : Set the frequency channel registration mode. : Assign a registration channel. : Enter and register an entered frequency in the assigned channel. : Set the receiving frequency, and return to the standby mode.
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Chapter 4 Operation Registration on CH01 is completed. The registration on the next channel (CH02) is possible. * In order to register on any other channel than CH02, return to step 3 and assign the channel number. In order to register another frequency Frequency: 7795.0kHz on CH02 continuously, enter the Enter [7], [7], [9], [5], [0] in turns.
Chapter 4 Operation • Execute the operation for registration of all the channels up to the last channel (CH*9) in the same group in order to use the automatic frequency selection function. If it is unnecessary to enter any frequencies, only press [ENT] switch so that the registered frequencies will be cleared.
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Chapter 4 Operation Description Switch Indication Clear the frequency indication. Channel number entry mode. Frequency channel: CH01 Enter [0], [1] in turns. Enter the registration channel | number. Clear the registered frequency on CH01. It is possible to clear the registered frequency on the next channel (CH02).
: Start printing the list of registered frequency channels. : Press [CLR] switch to end the printing of the list. After the printing of the list is completed, JAX-9B returns to the standby mode automatically. → It is unnecessary to execute the ending operation.
Chapter 4 Operation 4.5 Timer Program Recording (Registration) By registering the timer program, JAX-9B is able to receive (record) 15 facsimile broadcasting in 24 hours. The operation procedure necessary for timer program recording is executed in the following three steps.
Chapter 4 Operation 4.5.1 Registration Timer Program Register the program for timer program recording. Operation Procedure The timer programs can be registered at the automatic recording mode only. Switch the recording mode to the automatic recording mode before starting registration procedure, if it is set to the manual recording mode.
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Chapter 4 Operation : Select the half-tone recording mode (valid / invalid). No indication means Invalid. : Confirm the half-tone mode. For continuous registration of the next program, return to step 2). : Complete the timer program registration. LCD indications of each registering item The item to be entered is indicated by “_ “...
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Chapter 4 Operation • Timer programs cannot be registered while operating in timer program recording NOTE mode • The program numbers in which the program can be registered are 15 programs of 1-15. • Set the time on the 24-hour basis. The entry time is acceptable in either UTC or LMT.
In case of POWER OFF state: Push down the main power switch to the right side (POWER ON) on the rear side of JAX-9B. Confirm that JAX-9B is power ON state. The POWER indicator lamp lights up.) After that, push down the main power switch to the left side (TIMER) on the rear side of JAX-9B.
Chapter 4 Operation 4.5.3 Verifying Timer Program Verify the registered items of the timer programs. Operation procedure : Start the timer program registration mode. : Enter a program number for verifying. Program number: 1 to 15, Total 15 channels : The registered items of selected timer program will be indicated on the LCD.
Chapter 4 Operation 4.5.4 Modifying Timer Program The registered timer program can be modified. Operation procedure : Start the timer program registration mode. : Enter a program number for verifying. Program number: 1 to 15, Total 15 channels : The item to be modified will be indicated by “_” (underline). When pressing the [ENT] switch, the indication position of “_”...
If it is not deleted, omit step 4). 4) : Delete the program display on the LCD. : Delete the selected program from a memory in JAX-9B. 5) If the [PROG] switch is pushed without pushing the [ENT] switch, the program deleted by “4)”...
: Start printing the list of timer programs. : Press this key when stopping printing the list. When the printing of the list is completed, JAX-9B returns to the standby mode automatically. → It is unnecessary to execute the end operation.
Chapter 4 Operation 4.6 Additional Functions in Accordance with Broadcasting and Reception The additional functions available for receiving facsimile broadcasting are described below. 1) Adjustment of Inclined Recorded Image ••••••••• Refer to 4.6.1 2) Halftone Recording •••••••••••••••••••••• Refer to 4.6.2 3) Reverse Recording of Black/White ••••••••••••...
Rotate the SYNC control dial to the direction of L until the received image is recorded not inclined. • JAX-9B is adjusted so that an image is recorded properly when the SYNC control dial NOTE is at around the center position. Adjust it only when the recorded image is inclined (deviated).
Chapter 4 Operation 4.6.2 Half-tone Recording In receiving a photo image of a meteorological satellite, the recorded image is clearer in half-tone recording. Operation Procedure : The half-tone mode can be switched (ON/OFF) Description Switch Indication • The half-tone mode is valid. •...
Chapter 4 Operation 4.6.3 Reverse Recording of Black/White Some broadcasting stations broadcast the black/white reversed images (white image in the black background). Please make the black/white reverse recording mode valid when receiving from such FAX broadcasting stations. Operation Procedure The reverse (Black/White) recording mode can be switched over (ON/OFF) by the following operations: : Set the combined function mode.
Chapter 4 Operation 4.6.5 Attenuator to Internal Receiver This function can be used when a receiving broadcast is disturbed by external noise or strong radio signals from other broadcasting station. Operation procedure The attenuator to internal receiver can be switched over (ON/OFF) by the following operations: : Set the combined function mode.
100 Hz. • End the receiving frequency tuning (UP/DOWN) mode. • JAX-9B does not accept any other switch during the receiving frequency tuning NOTE mode. Do not forget to EXIT this mode for carrying out other operations when the...
Chapter 4 Operation 4.6.7 Switching to External Receiver JAX-9B can be connected to external HF receiver to receive facsimile broadcasting. Operation Procedure The external receiver mode can be switched over (ON/OFF) by the following operations: : Set the combined function mode.
Chapter 4 Operation 4.7 Necessary Functions for Normal Operation of Facsimile The functions necessary for normal operation of JAX-9B are described below. 1) Setting Internal Clock ••••••••••••••••••••• Refer to 4.7.1 2) Adjusting the Brightness of Operation Panel ••••••• Refer to 4.7.2 3) Language (English / Japanese) on the LCD •••••••...
It is necessary to correct the time of the internal clock periodically. • When a GPS receiver is connected to JAX-9B, the time of the internal clock is MEMO corrected automatically. However, in order to register the standard time to the internal clock, it is necessary to set the time of the internal clock manually only once after connecting to the GPS receiver.
Chapter 4 Operation time comes • End the current time indication mode. • When the built-in lithium battery (approx. 5 years) runs out, the timer should be set NOTE again after replacing the battery. 4.7.2 Adjusting Brightness of Operation Panel the backlight The brightness of of the operation panel can be adjusted.
Chapter 4 Operation 4.7.4 Program Version Display The program version of JAX-9B is indicated on the LCD. Operation procedure : Set the combined function mode. : The program version number is indicated on the LCD. * The software version indication automatically disappears after about 5 seconds indication.
Chapter 4 Operation 4.8 Alarm Indications If any trouble occurs in this equipment, it is indicated on the LCD. In such case, check on the alarm item and take necessary step. 1) No Recording Paper ••••••••••••••••••••• Refer to 4.8.1 2) BK Signal Input •••••••••••••••••••••••• Refer to 4.8.2 3) Life of Backup Battery (Clock Error) ••••••••••...
MEMO from JAX-9B. If JAX-9B is installed with a radio transmitting equipment such as an HF transceiver, the BK signal sent from the transceiver disconnects the antenna from JAX-9B to protect the internal receiver against the transmitting radio wave from the transceiver.
1) The indication of the life of backup battery When turned on JAX-9B and “Clock error” message is displayed on the LCD, it means that the backup battery has run out. In this case, replace the battery by referring to Section 5.3.
When the remaining section of the recording paper is approximately 2m long, a red ending mark appears on it. Then, prepare for replacing the recording paper. JAX-9B automatically stops when the recording paper is used out, and end-of-paper message appears on the LCD.
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3) Press the PUSH OPEN button to open the top cover of JAX-9B. 4) Open the front cover of JAX-9B. In order to open it, pull the upper part of the front cover toward you while pushing its lower part against the facsimile body.
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Recording paper 7) Pull the leading part of the paper straight toward you. Do not let it slack. 8) Close the front cover of JAX-9B while pulling the recording paper. 9) Ensuring that the paper is well tensioned not to be slack by pulling with one hand, slowly push down the top cover until it is locked with both hands at the end.
Otherwise, the thermal head may be damaged. JAX-9B is designed for maintenance-free use and does not need much daily work, but JAX-9B should always be kept clean. No smell or dust is generated in recording, but small paper dust is generated a little because the thermal head is contacted onto the recording paper.
The use of any unspecified battery may cause a malfunction or failure of the equipment. 1) Replacing backup battery If "Clock Error!!" is displayed when JAX-9B is powered on, it's the time to replace the battery. For replacing the backup battery, contact a nearby JRC marketing office, branch, sales office or...
Chapter 5 Maintenance 5.4 Troubleshooting If JAX-9B has a failure, it should be diagnosed by an authorized service engineer to replace any defective part. However, the user can shoot the simple troubles referring to the table below. Trouble symptom Cause...
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Chapter 5 Maintenance Trouble symptom Cause Action Refer to The [MANU] switch The register operation of a timer Press the [PROG] switch. is not accepted. program has not been completed. The timer program mode is The display of LCD is still a finished.
Chapter 6 Connection of GPS Receiver Chapter 6 Connection of GPS Receiver JAX-9B can correct the internal clock automatically by receiving the time data outputted from a GPS receiver. Connecting a GPS receiver to JAX-9B is recommended if the timer program recording is used.
Chapter 6 Connection of GPS Receiver 6.2 Operation Check The automatic time correction is performed only by connecting a GPS receiver to JAX-9B. (It is unnecessary to set up JAX-9B.) 1) Timing for automatic time correction The automatic time correction is performed at the following timing, but the LCD indicates no message of the time correction completing.
7ZZNA4017 FAX image display kit Communication I/F Unit *1 *1 The Communication I/F unit is used to convert the outputted serial data from JAX-9B into the USB-I/F data. • The PC is required to have a USB 2.0 interface port.
7.3 Software for the PC The main functions of the PC software are to display the received images transmitted from JAX-9B and to store the images in an image file. For the detail of the PC software, refer to the “Instruction Manual for Optional Software”...
This JAX-9B is not designed to have a waterproof or water-drip structure. Install JAX-9B in a room that is not affected by winds, water or sandy dust. Protect JAX-9B with the attached protective cover against dust and the like when it is not used for a long time.
Chapter 9 Customer Support When requesting the repair or replacement If you suspect that JAX-9B has a failure, check JAX-9B again referring to “CHAPTER5 5.4 Troubleshooting”. If a trouble remains after your troubleshooting, stop the use of JAX-9B and consult with a nearby JRC marketing office, branch, sales office or agent.
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Chapter 9 Customer Support JAX-9B Failure Check List When placing an order for repair of the product, you are kindly requested to check "Yes" "No" boxes on the list shown below and send the sheet back to our office. Vessel Name:...
10.1 Disposal of the Equipment JAX-9B must be disposed of in accordance with the applicable regulations and rules in your country, region (or province) or municipality. For the details, please consult with a nearby JRC agent, dealer, representative office or marketing office.
Chapter 11 Specifications 11.2 Synthesized Receiver 1) Receiving system : Phase-locked type frequency synthesized with up-conversion and double super heterodyne type 2) Class of emission : F3C 3) Frequency range : 2.0000 - 24.9999 MHz 4) Automatic frequency selection: The optimal frequency is selected automatically. 5) Receiving frequency memory: Up to 90 channels storing 6) Sensitivity : 2μV (+6dBμ) or less...
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To receive clear facsimile pictures, it is recommended to select a frequency that is not interfered instead of selecting a strong frequency. The Automatic Frequency Selection function of JAX-9B automatically selects a strong frequency but this is not good enough for clear and optimum picture reception.
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Appendix Appendix Figure 4 Interfered reception example 1...
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Appendix Appendix Figure 5 Interfered reception example 2...
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Appendix Execution of the Automatic Frequency Selection function The wave propagation condition goes worse. Appendix Figure 9 Interfered reception example (by the use of the Automatic Frequency Selection function)
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Appendix Normal Reverse Normal Appendix Figure 10 Reception example (by the false selection of the Black/White Inversion function)
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For further information,contact: Not use the asbestos http://www.jrc.co.jp Marine Service Department Telephone : +81-3-3492-1305 Facsimile : +81-3-3779-1420 e-mail : tmsc@jrc.co.jp AMSTERDAM Branch Telephone : +31-20-658-0750 Facsimile : +31-20-658-0755 e-mail : service@jrcams.nl SEATTLE Branch Telephone : +1-206-654-5644 Facsimile : +1-206-654-7030 e-mail : service@jrcamerica.com CODE No.7ZPNA4036 CODE No.7ZPNA4036...