Instruction/ maintenance manual of the product VX-177 Vertex Standard
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UHF FM TRANSCEIVER VX-177 O PERATING M ANUAL VERTEX STANDARD CO., LTD. 4-8-8 Nakameguro, Meguro-Ku, Tokyo 153-8644, Japan VERTEX STANDARD US Headquarters 10900 Walker Street, Cypress, CA 90630, U.S.A. YAESU EUROPE B.V. P.O. Box 75525, 1118 ZN Schiphol, The Netherlands YAESU UK LTD.
Contents Scanning .......................................................... 36 VFO Scanning .............................................. 37 Manual VFO Scan ................................... 37 Programmed VFO Scan ........................... 37 Memory Scanning .
VX-177 O PERA TING M ANUAL 1 G ENERAL D ESCRIPTION The VX-177 is a compact, high-performance submersible FM hand-held providing up to five watts of RF power and wealth of convenient features for the 430 MHz amateur band.
VX-177 O PERA TING M ANUAL 2 S UPPLIED A CCESSORIES FNB-83 7.2 V , 1,400 mAh Rechargeable Nickel-Metal Hydride Battery Pack NC-88B/C Overnight Battery Charger (10-Hour) YHA-69 Antenna Quick Draw Belt Clip Operating Manual W arranty Card A V AILABLE O PTIONS FNB-83 7.
VX-177 O PERA TING M ANUAL 3 Antenna Jack Connect the supplied rubber flex antenna (or an- other antenna presenting a 50-Ohm impedance) here. MIC/SP Jack This four-conductor miniature jack provides con- nection points for microphone audio, earphone audio, PTT , and ground.
VX-177 O PERA TING M ANUAL 4 C ONTROLS & C ONNECTORS ( LCD ) Operating Frequency Memory Channel Number S- & PO Meter Secondary Keypad Active Skip Memory Channel or Preferential Memory Channel .
VX-177 O PERA TING M ANUAL 5 PTT (Push T o T alk) Switch Press this switch to transmit, and release it (to receive) after your transmission is com- pleted. MONI Switch Pressing this switch disables the noise squelching action, allowing you to hear very weak signals near the background noise level temporarily .
VX-177 O PERA TING M ANUAL 6 C ONTROLS & C ONNECTORS ( K EYP AD F UNCTIONS ) Primary Function ( P RESS K EY ) Secondary Function ( P RESS [ F ] + K EY ) Third Function ( P RESS & H OLD K EY ) Frequency entry digit “1.” Frequency entry digit “2.
VX-177 O PERA TING M ANUAL 7 C ONTROLS & C ONNECTORS ( K EYP A D F UNCTIONS ) Frequency entry digit “3.” Frequency entry digit “6.” Frequency entry digit “9.” Selects the desired transmit power output level. Activates the Smart Search feature.
VX-177 O PERA TING M ANUAL 8 A NTENNA I NST ALLA TION The supplied antenna provides good results over the entire frequency range of the transceiver . However , for enhanced reception on certain non-Am.
VX-177 O PERA TING M ANUAL 9 B A TTER Y C HARGING If the battery has never been used, or its charge is depleted, it may be char ged by connect- ing the NC-88 Overnight Battery Charger , as shown in the illustration, to the EXT DC jack.
VX-177 O PERA TING M ANUAL 10 B EL T C LIP I NST ALLA TION Connect the hanger to the rear of the VX-177 , with the notch pointing directly up, using the supplied screw (Figure 1). Use only the screw included with the clip to mount the clip to the back of the VX-177 .
VX-177 O PERA TING M ANUAL 11 The VX-177 may be used for Packet operation, using the optional CT -91 Microphone Adapter (available from your Y aesu dealer) for easy interconnection to commonly-avail- able connectors wired to your TNC. Y ou may also build your own cable, using a four- conductor miniature phone plug, per the diagram below .
VX-177 O PERA TING M ANUAL 12 Hi! I’m R. F . Radio, and I’ll be helping you along as you learn the many features of the VX-177. I know you’re anxious to get on the air , but I encour- age you to read the “Operation” section of this manual as thoroughly as possible, so you’ll get the most out of this fantastic new transceiver .
VX-177 O PERA TING M ANUAL 13 O PERA TION S QUELCH A DJUSTMENT T o set the squelch, press the [ F ] key , followed by the MONI switch just below the PTT switch on the left side of the transceiver .
VX-177 O PERA TING M ANUAL 14 2 ) Direct Keypad Fr equency Entry The desired operating frequency may be entered directly from the keypad. The first “1” in the frequency does not need to be entered, as it is “assumed” by the microprocessor . T o enter a frequency directly , just key in the 10 MHz, 1 MHz, and the kHz digits.
VX-177 O PERA TING M ANUAL 15 O PERA TION T RANSMISSION Once you have set up an appropriate frequency inside the 430 MHz Amateur band on which the VX-177 can transmit, you’re ready to go on the air! These are the most basic steps; more advanced aspects of transmitter operation will be discussed later .
VX-177 O PERA TING M ANUAL 16 Now that you’re mastered the basics of VX-177 operation, let’ s learn more about some of the really neat features. K EYBOARD L OCKING In order to prevent accidental frequency change or inadvertent transmission, various as- pects of the VX-177 ’s DIAL and keypad may be locked out.
VX-177 O PERA TING M ANUAL 17 A DV ANCED O PERA TION K EYP AD /LCD I LLUMINA TION Y our VX-177 includes a reddish illumination lamp which aids in nighttime operation. The reddish illumination yields clear viewing of the display in a dark environment, with mini- mal degradation of your night vision.
VX-177 O PERA TING M ANUAL 18 A DV ANCED O PERA TION RF S QUELCH A special RF Squelch feature is provided on this radio. This feature allows you to set the squelch so that only signals exceeding a certain S-meter level will open the squelch. T o set up the RF squelch circuit for operation, use the following procedure: 1.
VX-177 O PERA TING M ANUAL 19 R EPEA TER O PERA TION Repeater stations, usually located on mountaintops or other high locations, provide a dra- matic extension of the communication range for low-powered hand-held or mobile trans- ceivers. The VX-177 includes a number of features which make repeater operation simple and enjoyable.
VX-177 O PERA TING M ANUAL 20 M ANUAL R EPEA TE R S HIFT A CTIV A TION If the ARS feature has been disabled, or if you need to set a repeater shift direction other than that established by the ARS, you may set the direction of the repeater shift manually .
VX-177 O PERA TING M ANUAL 21 R EPEA TER O PERA TION M ANUAL R EPEA TER S HIFT A CTIV A TION Checking the Repeater Uplink (Input) Fr equency It often is helpful to be able to check the uplink (input) frequency of a repeater , to see if the calling station is within direct (“Simplex”) range.
VX-177 O PERA TING M ANUAL 22 9. If you need to modify the VFO-B (transmit) frequency (for Doppler Shift correction, etc.), just press the [ VFO ( PRI )] key , then make the necessary change, then press [ VFO ( PRI )] key once more to restore VFO-A to the “receive VFO” position.
VX-177 O PERA TING M ANUAL 23 CTCSS/DCS/EPCS O PERA TION CTCSS O PERA TION Many repeater systems require that a very-low-frequency audio tone be superimposed on your FM carrier in order to activate the repeater . This helps prevent false activation of the repeater by radar or spurious signals from other transmitters.
VX-177 O PERA TING M ANUAL 24 be using (ask the repeater owner/operator if you don’t know the tone frequency). 7. When you have made your selection, press the [ F ] key momentarily to save the new settings and exit to normal operation.
VX-177 O PERA TING M ANUAL 25 CTCSS/DCS/EPCS O PERA TION Remember that the DCS is an Encode/Decode system, so your receiver will remain muted until a matching DCS code is received on an incoming trans- mission.
VX-177 O PERA TING M ANUAL 26 EPCS ( E NHANCED P AGING & C ODE S QUELCH ) The VX-177 includes an Enhanced CTCSS tone encoder/decoder and a dedicated micropro- cessor providing paging and selective calling features.
VX-177 O PERA TING M ANUAL 27 Activating the Enhanced Paging & Code Squelch System 1. Press the [ F ] key , then press the [ 1 ( SQ TYP )] key to enable selection of the CTCSS/ DCS/ECS mode. 2. Rotate the DIAL knob so that the “ ECS ” indication appears on the display .
VX-177 O PERA TING M ANUAL 28 S PLIT T ONE O PERA TION The VX-177 can be operated in a Split T one configuration via the Set mode. 1. Press the [ F ] key , then press the [ 0 ( SET )] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 43: SPLIT .
VX-177 O PERA TING M ANUAL 29 M EMOR Y M ODE The VX-177 provides a wide variety of memory system resources. These include: 200 “Standard” memory channels, numbered “ 1 ” through “ 200 .” A “Home” channel, providing storage and quick recall of one prime frequency .
VX-177 O PERA TING M ANUAL 30 M EMOR Y M ODE M EMORY R ECALL 1. While operating in the VFO mode, press the [ MR ( SKIP )] key to enter the Memory mode. 2. Rotate the DIAL knob to select the desired channel. 3. T o return to the VFO mode, press the [ VFO ( PRI )] key .
VX-177 O PERA TING M ANUAL 31 M EMOR Y M ODE L ABELING M EMORIES Y ou may wish to append an alpha-numeric “T ag” (label) to a memory or memories, to aid in recollection of the channel’ s use (such as a club name, etc.). This is easily accomplished using the Set Mode.
VX-177 O PERA TING M ANUAL 32 M EMOR Y O FFSET T UNING Once you have recalled a particular memory channel, you may easily tune off that channel, as though you were in the “VFO” mode. 1. W ith the VX-177 in the “MR” (Memory Recall) mode, select the desired memory channel.
VX-177 O PERA TING M ANUAL 33 M EMOR Y M ODE M EMOR Y B ANK O PERA TION The large number of memories available in the VX-177 could be difficult to utilize without some means of organizing them.
VX-177 O PERA TING M ANUAL 34 M OVING M EMOR Y D ATA TO THE VFO Data stored on memory channels can easily be moved to the last selected VFO, if you like.
VX-177 O PERA TING M ANUAL 35 N OTE.
VX-177 O PERA TING M ANUAL 36 The VX-177 allows you to scan just the memory channels, the entire operating band, or a portion of that band. It will halt on signals encountered, so you can talk to the station(s) on that frequency , if you like. Scanning operation is basically the same in each of the above modes.
VX-177 O PERA TING M ANUAL 37 S CANNING VFO S CANNING The VX-177 provides two VFO scanning functions: “Manual VFO Scanning” and “Pro- grammed VFO Scanning.” Manual VFO Scan 1. Select the VFO mode by pressing the [ VFO ( PRI )] key , if necessary .
VX-177 O PERA TING M ANUAL 38 M EMOR Y S CANNING Memory scanning is similarly easy to initiate: 1. Select the Memory mode by pressing the [ MR ( SKIP )] key , if necessary . 2. Press and hold in either the [ ( MHz )] or [ ( MHz )] key for one second to initiate upward or downward scanning, respectively .
VX-177 O PERA TING M ANUAL 39 S CANNING Prefer ential Memory Scan The VX-177 also allows you to set up a “Preferential Scan List” of channels which you can “flag” within the memory system. These channels are designated by a blinking “ ” icon when you have selected them, one by one, for the Preferential Scan List.
VX-177 O PERA TING M ANUAL 40 Memory Bank Scan When the Memory Bank feature is engaged, the scanner sweeps only memory channels in the current Memory Bank. However , if the Memory Bank Link Scan feature is enabled, you may sweep the memory channels in several Memory Banks which you have selected.
VX-177 O PERA TING M ANUAL 41 S CANNING P ROGRAMMABLE ( B AND L IMIT ) M EMOR Y S CAN ( PMS ) This feature allows you to set sub-band limits for either scanning or manual VFO opera- tion. For example, you might wish to set up a limit (in North America) of 144.
VX-177 O PERA TING M ANUAL 42 “ P RIORITY C HANNEL ” S CANNING ( D UAL W A TCH ) The VX-177 ’ s scanning features include a two-channel scanning capability which allows you to operate on a VFO or Memory channel, while periodically checking a user -defined Memory Channel for activity .
VX-177 O PERA TING M ANUAL 43 VFO-VFO Dual W atch 1. Press the [ VFO ( PRI )] key to switch the VFO mode, if needed. 2. Press the [ F ] key , then press and hold in the [ VFO ( PRI )] key for one second. The VX-177 will now periodically change from VFO-A frequency to the VFO-B frequency , checking for activity on each VFO for 0.
VX-177 O PERA TING M ANUAL 44 A UTOMA TIC L AMP I LLUMINA TION ON S CAN S TO P The VX-177 will automatically illuminate the LCD/Keypad Lamp whenever the scanner stops on a signal; this allows you to see the frequency of the incoming signal better at night.
VX-177 O PERA TING M ANUAL 45 N OTE.
VX-177 O PERA TING M ANUAL 46 E MERGENCY C HANNEL O PERA TION The VX-177 includes an “Emergency” feature which may be useful if you have someone monitoring on the same frequency as your transceiver ’ s “Home” channel. See page 30 for details on setting up the Home channel.
VX-177 O PERA TING M ANUAL 47 E MERGENCY A UTOMA TIC ID ( EAI ) F EA TURE The Emergency Automatic ID (EAI) feature can be used for searching for persons who are incapacitated in disasters like earthquakes, especially search-and-rescue personnel who may have become injured in a debris field.
VX-177 O PERA TING M ANUAL 48 The Emergency Automatic ID (EAI) Feature requires that you (1) store the CTCSS T one Pair into the Receiving Pager Memory (see page 26 for procedure), and (2) store the desired coordination frequency into Memory Channel “ 200 ” (see page 29 for procedure).
VX-177 O PERA TING M ANUAL 49 The Smart Search feature allows you to load frequencies automatically according to where activity is encountered by your radio.
VX-177 O PERA TING M ANUAL 50 The VX-177 can be used to access a “node” (repeater or base station) which is tied into the V ertex Standard WI RES™ (W i de-Coverage Internet Repeater Enhancement System) net- work, operating in the “SRG” (Sister Radio Group) mode.
VX-177 O PERA TING M ANUAL 51 I NTERNET C ONNECTION FEA TURE cess code (“#123”). I. Press and hold in the [ F ] key for one second to save the setting. 2. Press the PTT switch to exit to normal operation. 3. Press the [ F ] key , then press the [ 0 ( SET )] key to enter the Set mode again.
VX-177 O PERA TING M ANUAL 52 The A R TS™ feature uses DCS signaling to inform both parties when you and another AR TS™-equipped station are within communications range. This may be particularly use- ful during Search-and Rescue situations, where is important to stay in contact with other members of your group.
VX-177 O PERA TING M ANUAL 53 4. Press the [ F ] key momentarily to exit AR TS™ operation and resume normal function- ing of the transceiver . ARTS™ constitutes a form of “remote control” operation that may be re- stricted to certain frequencies.
VX-177 O PERA TING M ANUAL 54 CW Identifier Setup The AR TS™ feature includes a CW identifier , as discussed previously . Every ten minutes during AR TS™ operation, the radio can be instructed to send “DE (your callsign) K” if this feature is enabled.
VX-177 O PERA TING M ANUAL 55 DTMF O PERA TION The VX-177 ’ s 16-button keypad allows easy DTMF dialing for Autopatch, repeater con- trol, or Internet-link access purposes.
VX-177 O PERA TING M ANUAL 56 13 . When all required DTMF memories are filled to your satisfaction, press the PTT switch to save the settings and exit to normal operation T o send the telephone number: 1. Press the [ F ] key , then press the [ 9 ( DTMF )] key to activate the DTMF Autodialer .
VX-177 O PERA TING M ANUAL 57 The VX-177 allows you to utilize a DTMF (Dual-T one, Multi-Frequency) tone encoder/ decoder , with a dedicated microprocessor providing paging and selective calling features now that you've installed the optional FTD-7 DTMF Paging Unit.
VX-177 O PERA TING M ANUAL 58 Activating the DTMF Pager 1. Press the [ F ] key , then press the [ 0 ( SET )] key , to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 55: PAGER . 3. Press the [ F ] key momentarily to enable adjustment of this Set Mode Item.
VX-177 O PERA TING M ANUAL 59 DTMF P AGER O PERA TION ( R EQUIRES O PTIONAL FTD-7 ) When you activate the ANI (Automatic Number Identification) feature during DTMF Pager operation, the DTMF tones stored in ANI memory will automatically be sent whenever you press the PTT switch.
VX-177 O PERA TING M ANUAL 60 P ASSWORD The VX-177 provides a security password feature which can minimize the chance that your transceiver could be used by an unauthorized party . When the password feature is activated, the radio will ask for the four digit password to be entered when the radio is first turned on.
VX-177 O PERA TING M ANUAL 61 If you forget the password number , you may turn on the transceiver by per- forming the “All Reset” procedure (see page 67). However , the VX-177 will clear the password, as well as all memories, and will restore all other settings to factory defaults.
VX-177 O PERA TING M ANUAL 62 M ISCELLANEOUS S ETTINGS R ECEIVE B A TTER Y S A VER S ETUP An important feature of the VX-177 is its Receive Battery Saver , which “puts the radio to sleep” for a time interval, periodically “waking it up” to check for activity .
VX-177 O PERA TING M ANUAL 63 D ISABLING THE TX/BUSY I NDICA TOR Further battery conservation may be accomplished by disabling the TX indicator while transmitting and disabling the BUSY indicator while receiving a signal. Use the following procedure: 1.
VX-177 O PERA TING M ANUAL 64 T RANSMITTER T IME -O UT T IMER ( TOT ) The T OT feature provides a safety switch which limits transmission time to a pre-pro- grammed value.
VX-177 O PERA TING M ANUAL 65 DCS C ODE I NVERSION The DCS system was first introduced in the commercial LMR (Land Mobile Radio) ser- vice, where it is now in widespread use. DCS is sometime referred to by its different pro- prietary names, such as DPL ® (Digital Private Line ® , a registered trademark of Motorola, Inc.
VX-177 O PERA TING M ANUAL 66 C HANGING THE TX D EVIA TION L EVEL In many areas of the world, channel congestion has required that operating channels be closely spaced. In such operating environments, it often is required that operators use reduced deviation levels, so as to reduce the potential for interference to users on adjacent channels.
VX-177 O PERA TING M ANUAL 67 In the event of erratic operation of the transceiver , it is possible that data on the micropro- cessor may have become corrupted. While this is a highly unusual situation, the only path to recovery may involve resetting of the microprocessor .
VX-177 O PERA TING M ANUAL 68 The VX-177 includes a convenient “Clone” feature, which allows the memory and con- figuration data from one transceiver to be transferred to another VX-177 . This can be particularly useful when configuring a number of transceivers for a public service opera- tion.
VX-177 O PERA TING M ANUAL 69 N OTE.
VX-177 O PERA TING M ANUAL 70 The VX-177 Set Mode, already described in parts of many previous chapters, is easy to activate and set. It may be used for configuration of a wide variety of transceiver param- eters, some of which have not been detailed previously .
VX-177 O PERA TING M ANUAL 71 S ET ( M ENU ) M ODE F UNCTION Selects the alarm(s) utilized when the Emergency function is engaged. Selects the Internet Link Connection mode. Selects the Access Number (DTMF digit) for WIRES™ operation. Selects the memory register for an Access Number (DTMF code) for non-WIRES™ Selects the LCD/Keypad Lamp mode.
VX-177 O PERA TING M ANUAL 72 S ET ( M ENU ) M ODE R EPEA TER S ETTING Enables/Disables the Automatic Repeater Shift function. Sets the Repeater Shift Direction. Sets the magnitude of the repeater Shift. CTCSS/DSC/DTMF/EPCS S ETTING Selects the number of CTCSS/DCS Bell ringer repetitions.
VX-177 O PERA TING M ANUAL 73 S ET ( M ENU ) M ODE S WITCH /K NOB S ETTING Enables/Disables the beeper . Selects the LCD/Keypad Lamp mode. Selects the Control Locking lockout combination. Selects the MONI switch function. Selects the function of the [ HM/R V ] key .
VX-177 O PERA TING M ANUAL 74 Set Mode Item 1 [ APO ] Function : Setting of the Automatic Power- Off feature. A vailable V alues : OFF/0.5H - 12.0 H in 0.5 hour multiples Default : OFF Set Mode Item 2 [ AR BEP ] Function : Selects the Beep option during A R TS operation.
VX-177 O PERA TING M ANUAL 75 Set Mode Item 8 [ BSY .LED ] Function : Enables/Disables the BUSY LED while the Squelch is open. A vailable V alues : LED. ON/LED.OFF Default : LED. ON Set Mode Item 9 [ CLK.SFT ] Function : Shifting of the CPU clock frequency .
VX-177 O PERA TING M ANUAL 76 Set Mode Item 17 [ DT WRT ] Function : Programming of the DTMF Autodialer . See page 55 for details. Set Mode Item 18 [ ECS.CDR ] Function : Setting the Receiver Pager Code for the Enhanced CTCSS Paging & Code Squelch.
VX-177 O PERA TING M ANUAL 77 Set Mode Item 22 [ I NET ] Function : Selects the Internet Link Connection mode. A vailable V alues : INT .OFF/INT .COD/INT .MEM Default : INT .OFF INT .OFF: Disables the Internet Link Connection mode. INT .COD: Sets up the Internet Link Connection mode for WIRES™ access.
VX-177 O PERA TING M ANUAL 78 Set Mode Item 27 [ M/T -CL ] Function : Selects the MONI key (just below the PTT switch) function. A vailable V alues : MONI/T -CALL Default : Depends on the transceiver version. MONI: Pressing the MONI key causes the Noise/T one Squelch to be over-ridden, allow- ing you to listen for weak (or non-encoded) signals.
VX-177 O PERA TING M ANUAL 79 Set Mode Item 33 [ REV/HM ] Function : Selects the function of the [ REV ( HOME )] key . A vailable V alues : < REV > / < HOME > Default : < REV > < REV > : Pressing the [ REV ( HOME )] key reverses the transmit and receive frequencies during repeater operation.
VX-177 O PERA TING M ANUAL 80 Set Mode Item 39 [ SCN MD ] Function : Selects the Memory Scan channel-selection mode. A vailable V alues : ONL Y/MEM Default : MEM ONL Y : The scanner will only scan channels that are flagged (Preferential Scan List). MEM: The scanner will “skip” the flagged channels during scanning.
VX-177 O PERA TING M ANUAL 81 Set Mode Item 44 [ SQL.TYP ] Function : Selects the T one Encoder and/or Decoder mode. A vailable V alues : OFF/TONE/TSQL/REV TN/DCS/ECS Default : OFF T ONE: CTCSS Encode.
VX-177 O PERA TING M ANUAL 82 Set Mode Item 51 [ WID.NAR ] Function : Select W ide (±5 kHz) or Narrow (±2.5 kHz) TX Deviation. A vailable V alues : WIDE/NARROW Default : WIDE Note: If “Narrow” is selected, the receiver audio level is increased slightly to compensate for the reduced deviation.
VX-177 O PERA TING M ANUAL 83 General Frequency Ranges : RX 430 - 440 MHz or 420 - 470 MHz TX 430 - 440 MHz or 430 - 450 MHz Channel S teps : 5/10/12.5/15/20/25/50/100 kHz Frequency S tability : ±5 ppm @ 14 °F to +140 °F (–10 °C to +60 °C) Repeater Shift : ±5 MHz, ±7.
VX-177 O PERA TING M ANUAL 84 I NST ALLA TION OF THE FTD-7 DTMF P AGING U NIT ( O PTION ) Peel off the Caution Se al Press the Opti onal U nit Affix the supplied Caution Seal Connec tor 1. Make sure that the transceiver is off. Remove the hard or soft case, if used.
1. Changes or modifications to this device not expressly approved by VERTEX STANDARD could void the user’s authorization to operate this device. 2. This device complies with part 15 of the FCC Rules.
Printed in Japan Copyright 2005 VERTEX STANDARD CO., LTD. All rights reserved. No portion of this manual may be reproduced without the permission of VERTEX STANDARD CO.
An important point after buying a device Vertex Standard VX-177 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Vertex Standard VX-177 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Vertex Standard VX-177 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Vertex Standard VX-177 you will learn all the available features of the product, as well as information on its operation. The information that you get Vertex Standard VX-177 will certainly help you make a decision on the purchase.
If you already are a holder of Vertex Standard VX-177, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Vertex Standard VX-177.
However, one of the most important roles played by the user manual is to help in solving problems with Vertex Standard VX-177. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Vertex Standard VX-177 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
