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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of 3Com DEH-P90HDD, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.
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Unfortunately, only a few customers devote their time to read an instruction of 3Com DEH-P90HDD. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.
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First and foremost, an user manual of 3Com DEH-P90HDD should contain:
- informations concerning technical data of 3Com DEH-P90HDD
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- safety signs and mark certificates which confirm compatibility with appropriate standards
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Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of 3Com DEH-P90HDD alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of 3Com DEH-P90HDD, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the 3Com service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of 3Com DEH-P90HDD.
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After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.
Table of contents for the manual
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Page 1
DEH-P90HDD Printed in Japan Imprimé au Japon <CRD3473-A> UC This product conforms to CEMA cord colors. Le code de couleur des câbles utilisé pour ce produit est conforme à CEMA. INST ALLA TION MANUAL MANUEL D’INST ALLA TION <KMMUF/01K00000> Fig. 2 Y ellow/black If you use a cellular telephone, connect it via the Audio Mute lead on[...]
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Page 2
A T itle (English) Installation without the rubber bush (Fig. 6) Fig. 6 Removing the Unit (Fig. 7) (Fig. 8) Fig. 7 Fig. 8 Nut (5 mm) Dashboard Drill a 5.5 – 6.0 mm diameter hole. Screw (5 × 16 mm) Nut (5 mm) Screw Strap Be sure to use the strap to secure the back of the unit in place. The strap can be bent by hand to the desired angle. Insert th[...]
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Page 3
Installing the Unit on a Left-Hand- Drive Car Note: • When the unit is installed on a right-hand-drive car, the horizontal positions are inverted. 1. Secure inner holder to the inner cir- cumference of the steering wheel with belt. (Fig. 15) • Fit the inner holder to the steering wheel so that the arrow-marked side faces the driver as shown bel[...]
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Page 4
Raccordements des appareils <FRANÇAIS> Remarque: • Cet appareil est destiné aux véhicules avec une batterie de 12 V, avec pôle négatif à la masse. Avant de l’installer dans un véhicule de loisir, un camion ou un car, vérifier la tension de la batterie. • Afin d’éviter tout risque de court-circuit, débrancher le câble de la [...]
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Page 5
Montage DIN arrière Installation en utilisant les trous de vis sur les côtés de l’appareil 1. Enlever le cadre. (Fig. 9) Fig. 9 2. Fixation de l’appareil au support pour le montage de la radio installée par le constructeur. (Fig. 10) (Fig. 11) Choisir la position selon laquelle les orifices de vis du support et ceux des vis de l’appareil [...]
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Page 6
Installation de l’unité sur une voiture à direction à gauche Remarque: • Lorsque l ’ unit é est install é e sur une voiture à direction à droite, les positions horizontales sont invers é es. 1. Fixer le support interne à la circon- férence intérieure du volant de direc- tion avec la courroie. (Fig. 15) • Assurez le maintien du su[...]