Manuel d'utilisation / d'entretien du produit IP LDK-20 du fabricant LG Electronics
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IP LDK-20 Installation Manual I I P P L L D D K K 2 2 0 0 INST ALLA TION MANUAL.
IP LDK-20 Installation Manual R R E E V V I I S S I I O O N N H H I I S S T T O O R R Y Y ISSUE DATE CONTENT S OF CHANG ES REMARK ISSUE 1.0 ISSUE 1.1 2005.
IP LDK-20 Installation Manual i T T A A B B L L E E O O F F C C O O N N T T E E N N T T S S ■ IMPORTANT SAFETY INSTRUCTIONS ... .................................................... 1 Safety re quirements ......................... ...................
IP LDK-20 Installation Manual ii 4.1 Unp acking ............................ ................................................... ................................... .......... 47 4.2 Open ing an d closing the fron t cover ................ ............
IP LDK-20 Installation Manual Introduction 1 ■ Important Safety Instructions Safety requirements When using your telephone equip ment, basic safety pre cautions should a lways be followed to redu ce the risk of fire, electric sh ock and oth er personal i njury, incl uding the fol lowing: • Please re ad and underst and all instr uctions.
IP LDK-20 Installation Manual Introduction 2 ■ Precaution • Keep the syst em away from heati ng applianc es and elect rical noise ge nerating devic es such as fluoresc ent lamps, motors a nd televisi ons. These noise s ources c an interfer e with the perf ormanc e of the IP LDK-20 System.
IP LDK-20 Installation Manual Introduction 3 ■ The Structure of Manual This install ation manu al is desi gned to provid e as gene ral inform ation for th e IP LDK-20 Sys tem. It provides instructio ns for installin g the hardware, and pro gramming the IP LDK-2 0 System using keys et.
IP LDK-20 Installation Manual Introduction 4 SECTION 1. INTR ODUC TION 1.1 The IP LD K -20 Sy stem highlight s Features of the IP LDK-20 Syst em include: • Flexib le arch itecture • Opti onal LAN .
IP LDK-20 Installation Manual Introduction 5 1.3 System Components ITEM OPTION BO ARD DESCRIPTI ON KSU Key Service Unit PSU Pow er Supply Uni t, 90W MBUB Main Board Unit (2B RI, 4DKT , 2DKT/SLT, and 2.
IP LDK-20 Installation Manual Introduction 6 1.4 Specifications 1.4.1 General spec ifications ITEM DESCRIPTIO N SPECIF ICATION AC Voltage In put 230 +/-10% Volt AC @47-63Hz AC Pow er 90W AC Input F use 1.
IP LDK-20 Installation Manual Introduction 7 1.4.2 System Capacity DESCRIPT ION CAPACITY /BOARD TOTAL Time Slots 96 CO Line Port s 4/MBUB(BRI) 4/LCOB or 4/STIB 8/VOIM Max. 16 (Analog CO, ISDN BRI and/or IP tr unk) Max direct Station connec tions 8/MB UB 8/DTIB or 8/SLIB 8/DTIM, 8 SLIM, or 8/VOIM Max.
IP LDK-20 Installation Manual KSU Insta llation 8 SECTION 2. KSU INSTALLATION 2.1 Pre-Inst allation Please read the f ollowing guid elines conc erning inst allation an d connecti on before installi ng the IP LDK-20 System. Be sure also to comply with applica ble local regulations.
IP LDK-20 Installation Manual KSU Insta llation 9 2.2 KSU Inst allation 2.2.1 Unpacking Open the box and verify the items shown i n Figure 2.2.1 are included: Figure 2.
IP LDK-20 Installation Manual KSU Insta llation 10 2.2.2 KSU exterior and dimension Figure 2. 2.2 shows t he exterio r and dim ensions of the KSU: Figure 2.
IP LDK-20 Installation Manual KSU Insta llation 11 2.2. 3 KS U wi t h e x p a nsion m o du l e exterio r and dim en sion Figure 2. 2.3 shows t he exterio r and dim ensions of the KSU: Figure 2.
IP LDK-20 Installation Manual KSU Insta llation 12 2.2.4 Opening and closing the front cover 2.2.4.1 Opening the front cover 1. Turn the scre w counter-cl ockwise to loos en as shown i n Figure 2.2. 4.1. 2. Lift the front cover in the direction of the arrow as shown: Figure 2.
IP LDK-20 Installation Manual KSU Insta llation 13 2.2.4.2 Closing the front cover Insert the fr ont cover into the s lot on the KS U as show in Fig ure 2.2.4.2. Then put the f ront cover down on th e KSU in the di rection of the arr ow, as shown. Turn the screws clockwis e to tighten, as in the Figure.
IP LDK-20 Installation Manual KSU Insta llation 14 2.2.5 Frame ground connection It is very important th e frame of the IP LDK-2 0 system is grounded: 1. Tu rn the screw counter-clo ck wise to loosen. Then insert the gro unding wire. 2. Tighten the screw.
IP LDK-20 Installation Manual KSU Insta llation 15 2.2. 6 Po wer Supply Unit (PSU) installation Before install ation, make su re that the KSU not p lugged int o an outlet.
IP LDK-20 Installation Manual KSU Insta llation 16 2.2.7 External backup batteri es installation In case of powe r failure, the e xternal bac kup batteries automaticall y maintain un interrupted p ower for th e IP LDK-20 system. The ext ernal batteries must provide 24 Volts DC.
IP LDK-20 Installation Manual KSU Insta llation 17 2.2.8 KSU mounting 2.2.8.1 Wall mounting 1. Install 3 anchor pl ugs in the wall usin g the mounting templ ate included for accu rate plac ement (Fig ure 2.2.8.1a). 2. Attach the mou nting template with the incl uded 3 scre ws.
IP LDK-20 Installation Manual KSU Insta llation 18 Figure 2.2.8. 1b KSU Wall Mounti ng ※ Note : Be careful not to drop the KSU..
IP LDK-20 Installation Manual KSU Insta llation 19 2.2.8.2 Rack mounting 1. Attach the rac k bracket to the bot tom of the IP LDK-20 syste m as shown in Figu re 2.2.8.2a, a nd attach it to the system sec urely by tighteni ng the sc rews cl ockwise. Figure 2.
IP LDK-20 Installation Manual Board Installation 20 SECTION 3. BOARD INSTALLATION 3.1 Inst allatio n of the Boards Prior to Boar d Installation, the following s hould be cons idered: CAUTI ON • Power must be turned OFF. • To protect the system from static electricity , do not touch th e boards.
IP LDK-20 Installation Manual Board Installation 21 3.2 MBUB (Main Board Un it) Descript ion The MBUB controls co mmunication between the pe ripheral interfaces, supervises all resour ces in the system, controls the g ain adjustment of the PCM signal, generates the system tones, and ma nages system call processing .
IP LDK-20 Installation Manual Board Installation 22 Figure 3.2b Connection The MBUB is inst alled in the KSU a nd provi des various k inds of conn ectors and RJ 45 modular j acks for the connection of peripher al boards an d miscell aneous func tions (r efer to the f ollowing Table ).
IP LDK-20 Installation Manual Board Installation 23 3.2.1 Modular Jack(MJ1~MJ3) Pin Assignment 3.2.1.1 MBUB MJ1(CO) T Mode CONNECTOR PI N NUMBER NO SIGNAL NAME FUNCTION 1,2,7,8 Rese rved 3 TX+ Transmit Data 4 RX+ Receive Data 5 RX- Receive Data RJ45 6 TX- Transmit Data Figure 3.
IP LDK-20 Installation Manual Board Installation 24 S Mode CONNECTOR PI N NUMBER NO SIGNAL NAME FUNCTION 1,2,7,8 Rese rved 3 RX+ Receive Data 4 TX+ Transmit Data 5 TX- Transmit Data RJ45 6 RX- Receive Data Figure 3.
IP LDK-20 Installation Manual Board Installation 25 - CN21: SET FOUR 2PIN J UMPERS AS SHOW N IN THE AB OVE TABLE ACCOR DING TO EACH MO DE. 3.2.1.2 MBUB MJ2 & MJ3(Extension) MBUB MJ2 (EXTENSION) CO.
IP LDK-20 Installation Manual Board Installation 26 5-6 RESE RVED 3.2.1.3 MJ4 Pin Assignment MBUB CONNECTOR PIN NUMBE R NO SIGNAL NAME 1,2 Relay 1-R, Relay1-T 3,4 Relay 2-R, Relay2-T 5,6 EXT_PAGE-R, EX T_PAGE-T RJ45 7,8 Ala rm-R, Alarm-T 3.
IP LDK-20 Installation Manual Board Installation 27 GREE N IN-USE 3.2.1.5 CN22 Pin assignment MBUB CONNECTOR P IN NUMBER NO SIGNAL NAME FUNCTION 1 RESERVED 2 TD Transmitted Data 3 RD Received Data 4 D.
IP LDK-20 Installation Manual Board Installation 28.
IP LDK-20 Installation Manual Board Installation 29 3.3 Inst allation of the CO Line Boa rd BOARD PORT CON NECTOR TYPE DESCRIPTIO N CABLE RE MARK LCOB 2 ports (4 LCO) RJ45 Loop Start CO Li ne Interf a.
IP LDK-20 Installation Manual Board Installation 30 3.3.1.1 Pin Assignment LCOB CONNECTOR PIN NUMBE R NO SIGNAL NA ME 1,2 C O-R , CO-T 3 Res erv ed 4,5 C O-R , CO-T RJ45 6,7, 8 Re ser ve d CONNECTOR F.
IP LDK-20 Installation Manual Board Installation 31 PRCPTU4 (PR and CPT detection Unit) Descripti on The PRCPTU4 c an be optional ly mounted on LCO B, and pr ovides f our polarity rev ersal dete ction for call met ering, four call pro gress tone d etection t o support ACNR featur e (Automatic Called Num ber Redial ).
IP LDK-20 Installation Manual Board Installation 32 3.3.2 STIB (Basic Rate Interface Board: Selectable S/ T interface) Descript ion STIB should be install ed on t he LCOB/STI B/CBIB connec tor, and s upports T- interface or S-interfac e. The 1s t BRI port can be operat ed to T-mode and S-mod e and the 2nd port can onl y be set to T-mode.
IP LDK-20 Installation Manual Board Installation 33 3.3.2.1 Pin assignment T MODE CONNECTOR PI N NUMBER NO SIGNAL NAME FUNCTION 1,2,7,8 Rese rved 3 TX+ Transmit Data 4 RX+ Receive Data 5 RX- Receive Data RJ45 6 TX- Transmit Data Figure 3.
IP LDK-20 Installation Manual Board Installation 34 S MODE CONNECTOR PI N NUMBER NO SIGNAL NAME FUNCTION 1,2,7,8 Rese rved 3 RX+ Receive Data 4 TX+ Transmit Data 5 TX- Transmit Data RJ45 6 RX- Receive Data Figure 3.3.2.1b S Mode(Basi c STIBI Lin e Connector and Terminating Resistors) LED INDIC ATIONS STATUS LED ON OFF LINE NO.
IP LDK-20 Installation Manual Board Installation 35 3.3.2.2 Line Connector and Terminating Resistors SW 1 AND S W4’S 1, 2 P IN SETTING : DE FAULT = ALL ON POS ITION TERM INAT I NG R ESI ST O R S LIN.
IP LDK-20 Installation Manual Board Installation 36 3.3.3 CBIB (CID Loop Start CO line + Basic Rate Interface Board) Descript ion The CBIB can be installe d on the LCOB/STIB/CBIB connector, and provides 2 CO/P BX Loop Start CO Line int erfaces that suppor t pulse/DTMF signal and ISDN BRI T-mode in terface.
IP LDK-20 Installation Manual Board Installation 37 3.3.3.1 Pin Assignment CBIB 1’ST PORT FOR BRI T-MODE CONNECTOR PI N NUMBER NO SIGNAL NAME FUNCTION 1,2,7,8 Rese rved 3 TX+ Transmit Data 4 RX+ Rec.
IP LDK-20 Installation Manual Board Installation 38 3.3.3.2 Add-On Boards PRU2 (Polarity Reversal de tection Unit) Description The PRU2 can be optionally m ounted on CBI B, and provid es Polarit y Revers al detection fo r call meter ing. It also provide s four on-hook conn ection paths for SMS.
IP LDK-20 Installation Manual Board Installation 39 3.4 Inst allat ion of the Extension Board BOARD PORT CON NECTOR TYPE REMA RK DTIB4 4 DKT ports RJ45 Digita l Terminal In terface : 4 ports DTIB8 8 D.
IP LDK-20 Installation Manual Board Installation 40 3.4.2 DTIB8 (Digital Terminal I nterface Board) Description DTIB8 can be insta lled on the SLIB/DT IB connect or, and p rov id es 8 Digit al Keyset p orts. It als o provides 2-wire connections to D igital Keys ets.
IP LDK-20 Installation Manual Board Installation 41 3.4. 3 SLIB 4 (Sing le Line Interf ace Boar d) Description SLIB4 can be installed o n the SLIB/DTIB c onnector, an d provides 4 SLT ports, an d 2 DTMF receivers. The SLIB4 and SLT are conn ected with a RJ45 Mod ular Jack, MJ3.
IP LDK-20 Installation Manual Board Installation 42 3.4. 4 SLIB 8 (Sing le Line Interf ace Boar d) Description SLIB8 can be installed t he SLIB/ DTIB connector, and p rovides the 8 SLT ports and 2 DTMF rec eivers. T he SLIB8 and SLT are conn ected wit h a RJ45 Modul ar Jack, MJ 2 & MJ3.
IP LDK-20 Installation Manual Board Installation 43 3.5 Other Boar d Installations 3.5.1 VMIBE ( Voice Mail Inter face Board Enhanc ed) Description The VMIBE can be installed on the VMIB/AAFB connec tor, and pro vides system announcemen t, ACD/UCD announceme nt, and Use r Greeting.
IP LDK-20 Installation Manual Board Installation 44 3.5.2 AAFBE(Auto Attendant Function Board Enhanced) Description The AAFBE can be installe d on the VMIB/AAFB connector, an d provides syst em announcem ent and ACD/UCD announcement.
IP LDK-20 Installation Manual Board Installation 45 3.5.3 LANU (LAN interface Unit) Description LANU shoul d be installe d on the LANU conn ector, and pr ovides 1 LAN p ort of 10Base-T networki ng.
IP LDK-20 Installation Manual Board Installation 46 3.5.4 MODU (MODEM function Unit) Description MODU shoul d be installe d on the MODU con nectors , and provid es an analo g modem connect ion. It s upports Bell, ITU-T, V.34, V.32BIS, V.90 Prot ocol at 3 00bps, up t o 33Kbps sp eed rate, an d automatic r ate negoti ation.
IP LDK-20 Installation Manual Board Installation 47 SECTION 4. EXPANSION MODULE INSTALLATION IPLDK-20 pr ovides t hree kinds of expans ion modul es, VOI M, DTIM and S LIM.
IP LDK-20 Installation Manual Board Installation 48 4.2 Opening an d closing t he front cover 4.2.1 Opening the front cover 1. Turn the scre w counter-cl ockwise to loos en as shown i n Figure 4.2. 1. 2. Lift the front cover in the direction of the arrow as shown: .
IP LDK-20 Installation Manual Board Installation 49 4.2.2 Closing the front cover 1. Insert the front cover into the slot on a modul e as show in Figure 4. 2.2. 2. Then put the front cover down on a modul e in the directio n of the arrow, as shown. 3.
IP LDK-20 Installation Manual Board Installation 50 4.3 Opening and c losi ng the front cover 4.3.1 Connecting Expansion Module to KSU 1. Insert the expansi on module into t he slot of bas ic KSU as sho w in Figure 4.3. 1. 2. Turn the screws cl ockwise to t ighten, as i n the Figure.
IP LDK-20 Installation Manual Board Installation 51 4.3.2 Wall mounting The KSU with an ex pansion mo dule is mount ed on the wall in the sam e way with basic KS U and an expans ion module itself is not mounted on the wall as shown in Figure 4.3.2. Figure 4.
IP LDK-20 Installation Manual Board Installation 52 4.3.3 Rack Mounting 1. Attach the rack bracket t o the bottom of an ex pansion module as sh own in Figur e 4.3.3.1. Figure 4.3.3.1 Rack bracket 2. Attach it to an modul e securely by t ightenin g the screws clockwise, a s in the Figu re.
IP LDK-20 Installation Manual Board Installation 53 3. To attach an expansi on module t o the rac k, affix t he bracket with the 4 s crews prov ided (Fig ure 4.3.3. 4). 4. Connect an e xpansion m odule with the b asic KSU by a f lat ca ble packed in t he pac kage type2, as in the Fi gure.
IP LDK-20 Installation Manual Board Installation 54 4.4 External backup batteries connection In case of powe r failure, the e xternal bac kup batteries automaticall y maintain un interrupted p ower for th e IP LDK-20 system. The ext ernal batteries must provide 24 Volts DC.
IP LDK-20 Installation Manual Board Installation 55 4.5 VOIM (V oice over Internet Prot ocol Interface Modu le) inst allation Descript ion The VOIM can be instal led on the basic KSU and provides the Ethern et interface f or S/W applicatio ns and VoIP features with optional VoIP daughter bo ard.
IP LDK-20 Installation Manual Board Installation 56 Figure 4.5.2 VOI B The VOIB is instal led in the VOIM and provide s various kinds of connector s and RJ45 modular jacks for the connection of peripher al boards an d miscell aneous func tions (r efer to the f ollowing Table ).
IP LDK-20 Installation Manual Board Installation 57 LED indications LED Functions Remark LD1 DSP HINT int errupt LED (ON: A ctive, OFF: Idle) LD2 Periodic toggl e – ON: 1 sec.
IP LDK-20 Installation Manual Board Installation 58 4.5.2 VOIU(Voice over Internet Protocol Interface Unit) Descript ion The VOIU can b e installed o n the VOIB thro ugh CN2 and C N3 and provi des the Eth ernet inte rface for S/W applications an d 4 VoIP channels.
IP LDK-20 Installation Manual Board Installation 59 4.6 SLIM(SL T Interfac e Module) Installation Descript ion The SLIM provides the ei ght (8) ports of SLT interfac e and two DTMF receive rs. The connection bet ween the SLIM and Singl e Line Tel ephone is performed t hrough RJ 45 Modula r Jacks, MJ1.
IP LDK-20 Installation Manual Board Installation 60 4.7 DTIM(Digit al T erminal Interface Module) Descript ion The DTIM provid es Digit al terminal i nterface of 8 ports . It also provides 2 -wire conn ection to Digital K eysets. It has module connec tors, MJ1, whic h is used to c onnect Di gital Keyset li nes to the DTI M.
IPLDK-20 Installation Manual Te rmina l Co nnect ion 61 SECTION 5. TE RMINAL CONNECTION 5.1 T erminal Models Various types of digit al terminals are used with IP LDK-20 MBUB/DTIB4/DTIB 8 as listed and.
IPLDK-20 Installation Manual Te rmina l Co nnect ion 62 5.2 T erminal C abling D istan ce Figure 5.2 Termi nal Cabling Distance.
IPLDK-20 Installation Manual Te rmina l Co nnect ion 63 5.3 Keyset Connection 5.3. 1 Digit al Key set The following illustrates how to conne ct the Digital Keyset to your system: Figure 5.3.1 Digital Keyse t Connection 5.3.1.1 Pin Assignment CONNECTOR TY PE PIN NUMBE R NO SIGNAL N AME 1-2 RESERV ED 3 TIP 4 RING RJ11 5-6 RESERV ED 5.
IPLDK-20 Installation Manual Te rmina l Co nnect ion 64 5.4 Connecting Additional T erminals MBUB provides c onnections for 1 external music so urce, 1 external page port, 2 relay cont acts, and an alar m/door- bell input monitor through the PJ1 audio jack and a MJ4 RJ45 Mod ular Jack.
IPLDK-20 Installation Manual Starting the IP LDK-20 System 65 SECTION 6. STARTING THE IPLDK-20 SYSTEM 6.1 Before S t arting t he IP LDK -20 System The DIP switch (SW1 ) of Memory Back up Battery sh ould be t urned ON befo re install ing the MB UB, to protect system data in the case of a power failur e.
IPLDK-20 Installation Manual Starting the IP LDK-20 System 66 6.2.1.1 Button explanation There are ma ny kinds of DK TUs capable of c onnectin g to the IP LDK-20 s ystem.
IPLDK-20 Installation Manual Starting the IP LDK-20 System 67 6.2.2 Entering programming mode To enter Programming Mode, perform th e following Steps: Lift the handset OR Pre ss the [MON] button on the ADMI N station, and hear ICM di al tone. 1. Press the [TRANS/P GM] button a nd dial ＊ # .
IPLDK-20 Installation Manual Starting the IP LDK-20 System 68 6.2.3 Pre-programming Location PGM-Na tion Code & Site Name (PGM10 0) ※ NOTE : The 4th pole of the DI P switch (SW 3) on the MPB must be turned ON. Procedure Nation Code To program the Nation code, perform the foll owing Steps: 1.
IPLDK-20 Installation Manual Starting the IP LDK-20 System 69 International Calling Codes NATION CODE NATI ON CODE NATION CODE America 1 Argentina 5 4 Australia 61 Bahrain 973 Banglade sh 880 Belgiu m.
IPLDK-20 Installation Manual Starting the IP LDK-20 System 70 6.2.3.1 RACK SLOT ASSIGNMENT (PG M 101) 1. Pres s [Trans/PGM] + 101 2. Enter slot number(2 digits ). 3. Pres s [ FLEX1 ] 4. Enter Board T ype code( 2 digits). Press [HO LD/SAVE] to accept change.
IPLDK-20 Installation Manual Starting the IP LDK-20 System 71 6.2.3.3 Numbering Plan Type (PGM 104) PROC ED UR E 1. Pres s [Trans/PGM] + 104 , then enter the Number Plan Type (Refer to following Table, press 1 digit ). Press [HO LD/SAVE] to accept change.
IPLDK-20 Installation Manual Starting the IP LDK-20 System 72 6.2.3.4 FLEXIBLE NUMBERING PLAN (PGM 105) PROC ED UR E To set your flexible numbering plan, perform the fo llowing Steps: 2. Pres s [Trans/PGM] + 105 , then enter the stat ion range (dial start and end s tation n umbers).
IPLDK-20 Installation Manual Starting the IP LDK-20 System 73 6.2.3.5 Flexible Numbering Plan (PGM 106-107) PROC ED UR E Plan A (106 ) 1. Pres s [Trans/PGM] + 106 , then press th e Flexible Button you wish to program (1-24). Enter the c ode (ref er to follo wing Tabl e).
IPLDK-20 Installation Manual Starting the IP LDK-20 System 74 Flex Numb ering Plan B (PGM 107) FLEX ITEM DEFAULT VALUE (AT NUMBER ING PLAN TYPE 1 ) 1 Alarm Reset 565 2 Group Call Pick-Up 566 3 UCD Gro.
IPLDK-20 Installation Manual Starting the IP LDK-20 System 75 6.2.3.6 IP setting for System (PGM 108) PROC ED UR E IP Name (Use the # to skip) 1. Pres s [Trans/PGM] + 108 , then press [FLEX1]. Enter the c ode ( max. 16 c haract ers). Press [HO LD/SAVE] to accept change.
IP LDK-20 Installation Manual Troubleshooting 76 SECTION 7. T ROUBLESHOOTING PROBLEM CAUSE / SYMPTOM SOLUTION Power short cir cuit in some board (s) Sys tem po wer f ail ur e LD6 LED lig ht on the MBUB is OFF or blinking Exchange the ma lfunctioning board for on e in good working condition.
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté LG Electronics IP LDK-20 c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du LG Electronics IP LDK-20 - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation LG Electronics IP LDK-20, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le LG Electronics IP LDK-20 va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le LG Electronics IP LDK-20, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du LG Electronics IP LDK-20.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le LG Electronics IP LDK-20. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei LG Electronics IP LDK-20 ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
