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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Dual XD1225, 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 Dual XD1225 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 Dual XD1225. 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 Dual XD1225 should contain:
- informations concerning technical data of Dual XD1225
- name of the manufacturer and a year of construction of the Dual XD1225 item
- rules of operation, control and maintenance of the Dual XD1225 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 Dual XD1225 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 Dual XD1225, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Dual 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 Dual XD1225.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Dual XD1225 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
AM/FM/CD Receiver with Auxiliary Input, USB Charging Port and Detachable Face XD1225 Charge Port INSTALLATION/OWNER'S MANUAL[...]
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Page 2
2 Preparation TYPICAL MOUNTING METHOD XD1225 INSTALLATION Please read entire manual before installation. Before You Start • Disconnectnegative batteryterminal. Consulta qualifiedtechnician forinstructions. • Avoidinstalling theunit whereit wouldbe subjecttohigh?[...]
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Page 3
3 Rear Preamp Output Connect to amplifier RCA input Antenna Connector RCA Cable (sold separately) AMP BLUE BLACK RED YELLOW Remote Turn-On Connect to amplifier or power antenna. Insulate wire if not used. Ground Connect to vehicle chassis ground. Accessory Connect to ignition circuit or switched 12 volt source. Memory Connect to battery circuit or [...]
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Page 4
4 Control Locations Release Mode / Power Volume Knob Display Audio / Menu Eject USB Charging Port Auxiliary Input Preset 6 1 2 3 4 5 6 7 8 9 Preset5 Preset 4 / Play / Pause Preset 3 / Intro Preset 2 / Random Preset1 /Repeat Band Tune/ TrackUp Tune/ TrackDown 10 11 12 13 14 15 16 17 1 2 3 8 XD1225 OPERATION The?[...]
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Page 5
5 General Operation Press RELEASE and pull away from the left side to remove. Tore-install, insertright sideof faceplatefirst thenpushleft side to secure. Removetrim ringand installsupplied#1 x7/32” Phillipshead screw through left side of mounting frame into faceplate. Press [...]
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Page 6
6 Insert the USB connector of a battery powered USB device into the USB charging port on the front panel, which provides5 voltsDC and1.0 amps.The USBdevicewill immediately begin charging. Note: The USBcharging portmay notbe compatiblewith everydevice dueto differencesin?[...]
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Page 7
7 Audio Operation Press AUDIO until BAS appears Rotate the volume knob left/rightto adjust (-6minimum /6 maximum) Press AUDIO untilTRE appears Rotate the volume knob left/rightto adjust (-6minimum /6 maximum) Press AUDIO until BAL appears Rotate the volume knob left/rightto ad[...]
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Page 8
8 CD Player Operation Withthe labelfacing up,insert astandard sizeCDinto the CDslot. TheCD willautomatically beginplayback. Press the EJECT button tostop andeject theCD. Theunit willchange totuner mode. Press TRACK ll to skipto?[...]
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Page 9
9 Troubleshooting Problem Cause Action Yellow wire not connected or incorrect voltage Red wire not connected or incorrect voltage Checkconnections forpropervoltage (11~16VDC) Blackwire notconnected Checkconnection toground Fuse blown Replace fuse Speakerwires notconnected Checkconnections atspea[...]
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Page 10
10 Limited One Year Warranty Thiswarranty givesyou specificlegal rights. You may also have other rights which vary from state to state. Dual Electronics Corp. warrants this product to the original purchaser to be free fromdefects inmaterial andworkmanship for a period of one year from the date of the ori[...]
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Page 11
11 XD1225 OPERATION FCC Compliance Thisdevice complieswith Part15 ofthe FCCRules.Operation issubject tothe following twoconditions: (1)this devicemay notcause harmfulinterference, and (2)this devicemust acceptany interferencereceived, inc[...]
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Page 12
Specifications Frequencyresponse: 20Hz-20kHz Channelseparation @1kHz: >65dB D/Aconverter: 1 Bit Tuningrange: 87.5MHz-107.9MHz Usablesensitivity: 12dBf 50dBquieting sensitivity: 16dBf Stereoseparation @1kHz: 40dB Frequencyresponse: 30Hz-13kHz Tuning?[...]