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The rules should oblige the seller to give the purchaser an operating instrucion of AT&T MMD85, 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.
What is an instruction?
The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of AT&T MMD85 one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.
Unfortunately, only a few customers devote their time to read an instruction of AT&T MMD85. 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.
What should a perfect user manual contain?
First and foremost, an user manual of AT&T MMD85 should contain:
- informations concerning technical data of AT&T MMD85
- name of the manufacturer and a year of construction of the AT&T MMD85 item
- rules of operation, control and maintenance of the AT&T MMD85 item
- safety signs and mark certificates which confirm compatibility with appropriate standards
Why don't we read the manuals?
Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of AT&T MMD85 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 AT&T MMD85, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the AT&T 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 AT&T MMD85.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the AT&T MMD85 item, and its use of respective accessory, as well as information concerning all the functions and facilities.
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
1 Installation Guide MMD85 8.5" O VERHEAD L CD VIDEO MONIT OR WITH D VD PLA YER I nstallation Guide[...]
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Page 2
2 Installation Guide Licensed under one or more of the following patents, Patent NOS. 5,775,762 and 5,927,784 Important Notice An LCD panel and/or video monitor may be installed in a motor vehicle and visible to the driver if the LCD panel or video monitor is used for vehicle information, system control, rear or side observation or navigation. If t[...]
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Page 3
3 Installation Guide MA TERIALS INCLUDED IN THIS P ACKAGE: 1) MMD85 Video Monitor with DVD player (P/N136D3586) (1 pc) 2) A/V Adapter Cable (1 12B3227) (1 pc) 3) 2 Pin Power Wire Harness with choke (P/N1 12B3370) (1 pc) 4) Hardware Package:- ♦ #8 x 3/4” Self Drilling Screws (4 pcs) ♦ #8 W ashers (4 pcs) 5) Dome light Harness (1 12B31 10) (1 p[...]
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Page 4
4 Installation Guide VEHICLE PREP ARA TION: 1) Locate an accessory power source (+12v when key is in the ACC. and run positions, and 0v when key is off). Also find a location that will provide a good grounding point. Generally , this wire can be found at the ignition switch or fuse-box. 2) The mounting method and location will vary from vehicle to [...]
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Page 5
5 Installation Guide MOUNTING THE VIDEO UNIT (4) #8x3/4" self tapping screws ( supplied) Roof Roof support Headliner 5"x9"x3/4" Plywood Block or Optional VOHBKT (4) #8x1" self drilling screws (not supplied) Video unit (4) #8 Flat washers (supplied)[...]
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Page 6
6 Installation Guide 1) Make the connections to the vehicle for the 2 pin wiring harness. 2) Connect the 2 pin harness to the mating connector on the Video Monitor . 3) Connect power harness to vehicle's electrical system by tapping into an accessory hot line and a good ground. 4) V erify all functions of the System before final mounting of th[...]
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Page 7
7 Installation Guide Red / black - Lamp on Black / red - Lamp common Violet / brown - Lamp Auto T o 3 pin connector on Monitor To constant +12vdc To constant +12vdc Factory Door ajar switch or Body Control computer Factory Dome light circuit Positive Switched Dome lighting CONNECTING THE DOME LIGHTS The dome lights in the video monitor require thre[...]
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Page 8
8 Installation Guide T roubleshooting: SYMPT OM: No power at Video Monitor Power but no video or sound Picture, but no sound REMEDY : -V erify +12 VDC on Red wire at 2 pin Power Harness behind video monitor . V erify ground connection with continuity test from known good ground to black wire at 2 pin Power Harness -V erify that the correct source i[...]
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9 Installation Guide © Copyright 2004 AEC 150 Marcus Blvd. Hauppauge, NY 1 1788 128-7251[...]