Jwin jk-3030 manual

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A good user manual

The rules should oblige the seller to give the purchaser an operating instrucion of Jwin jk-3030, 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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The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of Jwin jk-3030 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 Jwin jk-3030. 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 Jwin jk-3030 should contain:
- informations concerning technical data of Jwin jk-3030
- name of the manufacturer and a year of construction of the Jwin jk-3030 item
- rules of operation, control and maintenance of the Jwin jk-3030 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 Jwin jk-3030 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 Jwin jk-3030, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Jwin 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 Jwin jk-3030.

Why one should read the manuals?

It is mostly in the manuals where we will find the details concerning construction and possibility of the Jwin jk-3030 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

  • Page 1

    CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER SERVICEABLE P AR TS INSIDE. REFER SER VICING T O QUALIFIED SERVICE PERSONNEL. The lighting flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated dangerous voltage within the products's en[...]

  • Page 2

    The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. W ARNING: T O REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK. DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. PORT ABLE CART W ARNING DO NOT REM[...]

  • Page 3

    6A. An appliance and cart combination should be moved with care. Quick stops, excessive force, and uneven surfaces may cause the appliance and cart com- bination to overturn. 7. Wall or Ceiling Mounting  The appliance should be mounted to a wall or ceiling only as recommended by the manufacturer . 8. V entilation  The appliance should be situ[...]

  • Page 4

    17. Object and Liquid Entry  Care should be taken so that objects do not fall and liquids are not spilled into the unit through openings. 18. Damage Requiring Service  The appliance should be serviced by qualified service personnel when: A. The power supply cord or the plug has been damaged; or B. Objects have fallen, or liquid has been spill[...]

  • Page 5

    1 1. SPEAKER GRILL 12 . DC 12V JACK 13 . TELESCOPIC ANTENNA 14. EXTERNAL TV ANTENNA JACK 15. BA TTER Y DOOR 16 . VERTICAL V-HOLD 17. BRIGHTNESS 18. CONTRAST 19. WEA THER CHANNEL BAND SELECTOR 1. HEADPHONE JACK 2. POWER INDICA T OR 3. TV MONITOR 4. FUNCTION SELECTOR 5. DIAL SCALE 6. VOLUME CONTROL 7. BAND SELECTOR 8. FM STEREO INDICA T OR 9 . TUNING[...]

  • Page 6

    5 RADIO OPERA TION  Press the Power Switch down to turn on the unit and the Power indicator light up.  Set Function Selector to RADIO position.  Select the desired radio frequency band with Band Selector . For FM Stereo, FM Stereo LED light on.  Rotate Tuning Contr ol to set the Dial Pointer against the station frequency as marked[...]

  • Page 7

    6 SPECIFICA TION Power Supply: DC 12V Radio Frequency Coverage: AM 530 - 1710 KHz FM 88 - 108 MHz Weather Band Frequency Coverage: CH 1 162.550 MHz CH 2 162.400 MHz CH 3 162.475 MHz CH 4 162.425 MHz CH 5 162.450 MHz CH 6 162.500 MHz CH 7 162.525 MHz TV Band Frequency Coverage: VLF 2-6 CH VHF 7-13 CH UHF 14-69 CH General: Speaker 8 Ohm[...]