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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Yamakawa M2150, 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 Yamakawa M2150 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 Yamakawa M2150. 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 Yamakawa M2150 should contain:
- informations concerning technical data of Yamakawa M2150
- name of the manufacturer and a year of construction of the Yamakawa M2150 item
- rules of operation, control and maintenance of the Yamakawa M2150 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 Yamakawa M2150 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 Yamakawa M2150, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Yamakawa 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 Yamakawa M2150.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Yamakawa M2150 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
Model : M2150 Instruction Manual Car Stereo Comp act Disc MP3/CD-RW/CD-R/CD SD/MMC USB Media Player with PL L FM S tereo Radio, Radio Dat a System (RDS) with PTY Det achable Front Panel System[...]
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Function MODEL : M2150 Car Stereo Comp act Disc MP 3/CD-R W/CD-R/CD SD/MMC USB Media Player with PLL FM S tereo Radio, Radio Dat a System with PTY Det achable Front Panel System FEA TURES z MP3/CD-RW/CD-R/CD Playback z The best st ations memor y automatically memorizes the best (strongest) st ation in the order their strength (AS) z MP3 files playb[...]
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Content Function …………………..………. 2 LCD display …………………….. 17 W arnings ………………………….. 4 Panel release button ………….. 17 Drawings ………………………….. 5 CD slot …………………………… 18 Location …………………………… 6 CD eject button …………………[...]
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Warnings The exclamation point within the tr iangle is a warning sign alerting the user of import ant instructions accom p anying the product. The lightening flash with arrowhead symbol within the triangle is a warning sign alerting the user of volt age inside the unit. The reduce the risk of electric shock, do not remove the cover . No user servic[...]
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Drawings 5[...]
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Location LOCA TIONS OF CONTROLS 1. POWER ON/OFF 2. FUNCTION SELECT BUTTON: BASS/TREBLE/BALANCE/ F ADER/T A SEEK/PI SOUND/RETUNEL/MASK DP/BEEP 2ND 3. VOL UP/VOL DOWN FOR BASS/TREBLE/BALANCE/F ADER (+,-) 4. PRESET ST A TIONS (1,2,3,4,5,6) 5. AF FUNCTION (AL TERNA TIVE FREQUENCIES) 6. T A FUNCTION (TRAFFIC ANNOUNCE MENT) 7. PTY FUNCTION (PROGRAM TYPE)[...]
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Page 7
Installation INST ALLA TION PRECAUTIONS z Choose the mounting location careful ly so that the unit will not interfere with the normal drivin g functions of the driver . z A void inst alling the unit w here it woul d be subject to high temperatures, such as from direct sunlight or hot ai r from the heater , or where it would be subject to dust, dirt[...]
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Page 8
Installation Det aching and attaching the front p anel The front p anel of this unit can be det ached in order to prevent the unit from being stolen. DET ACHING THE FRONT P ANEL Before det aching the front panel, be sure to press the PWR button to turn off the unit first. Then press the button and det ach th e panel by pulling it tow ards you as il[...]
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Installation ISO CONNECTOR RCA Jack Line Out(Rear)-Gray : Red (right) : White (lef t) CONNECTOR A 1. 2. 3. 4. MEMOR Y +12V 5. AUTO ANTENNA OUTPUT 6. 7. +12V (T O IGNITION KEY) 8. GROUND The connector A no.7 must be connected by car ignition key in order to avoid that car ba ttery becomes weak when the car will be not used for long period. CONNECTOR[...]
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Installation Maintenance FUSE REPLACEMENT If the fuse blows, check the pow er connection and replace the fuse. If the fuse blows again after the repl acement, there may be an internal malfunction. In this case, consul t your nearest rep airing centre. W arning Use the specified amperage fuse for each lead. Use of a higher amperage fuse may cause se[...]
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Operation OPERA TING INSTRUCTIONS 1. POWER ON/OFF By pressing this key (1), th e unit is switched on and off. This unit is turned on by pressing any key . 2. SELECT (SEL) 3. VOLUME KNOB Rot ate V ol ume up/down knob to control the OLUME to select other functions, press the SEL(2) button shortly until the desired function is shown on the display . F[...]
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Operation T A SEEK Model: When newly turned st ation does not receive TP information for 5 sec., the radio retunes to next st ati on w hich has not the same st ation(PI) as the last st ation, but has the TP information. In T A seek mode, the current st ation can be ch anged to the completely different st ation because the unit searches TP st at ion[...]
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Operation DEEP MODE(2) When press the SEL button for more than 2 seconds, it is activated as selecting mode of these functions, 4. PRESET ST A TIONS (1,2,3,4,5,6) (A) RADIO MODE: When press short, these keys select a preset station directly . When press longer than 1 sec., current st ation is stored in preset memory bank. When PTY mode s selected, [...]
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Operation USING THE RDS FUNCTION What is RDS? The RDS (Radio Dat a System) is a di git al information system developed by the EBU (European Broadcast Union). Piggy-backed on normal FM broadcast s, RDS offers a variety of information services and automatic retuning functions for RDS-comp atible car stereos. In 1988, RDS became available in the Unite[...]
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Operation -When the unit is in CD/MP3 mode, it w ill switch to radio mode temporarily . -If the volume level was under the thres hold point, it will be raised to the threshold point. -When TP st ation is received, TP segment is turned on in LCD display . 7. PTY function (PROGRAM TYPE) PTY MUSIC---PTY SPEECH---PTY OFF While selecting PTY type, it s [...]
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Operation 9. MODE BUTT ON (MD) By pressing this key , user can select RADIO mode or CD/MP3 PLA YER mode. 10. BAND / LUD BUTTON (BND/LUD) Each band is tollgled cyclically by pressing this key FM1-FM2-FM3. Press Loudness button shortly to increase Bass and T reble effects at low volume level. LOUD appears in the display . 1 1.12. AUT OMA TIC OR MANUA[...]
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Operation 13. AUTO SEEK SEARCH TUNING (A/PS) By pressing shortly , the radio searches for each preset station. When field strength level is bigger than the thres hold level of stop level, the radio is holding at that preset number for 5sec. With releasing mute, and then searches again. By pressing longer than 1 sec., and then 6 strongest st ations [...]
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Operation 16. CD SLOT 17. CD EJECT BUTTON Press the EJECT button(17) to remove the CD. 18. P AUSE BUTTON During PLA Y mode, press P AUSE button (18) to P AUSE. Press it again to resume play . 19. INTRO BUTTON (Preview all T racks) When this button (19) is presse d, INT indication is displaye d And the first several seconds of each track of the disc[...]
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Operation HOW TO S ELECT MP3 FILES Searching T rack Press A/PS, then searching track is activated. Rot ate the volume knob to select the song you want. Press SEL to confirm. Then automatically the song you selected will st art. Press SEL, then the song y ou selected will start. Digit al audio button assigned. BAND MP3 NA VIGA TION MODE SELECT 1 PLA[...]
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Specification SPECIFICA TIONS FM SECTION Frequency range 87.5-108.0MHz Channel step 50KHz Intermediate frequency 10.7MHz Sensitivity 2 V at 30dB S/N Stereo sep aration >30dB Signal to noise radio >60dB CD/MP3 PLA YER SECTION Signal to Noise Ratio >60dB Channel Sep aration >50dB(1KHz) Frequency Response 20Hz-20KHz LINE-OUT Output 350mV m[...]
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Trouble Shooting Before going through the check list, check wiring connection. If any of the problems persist af ter check list has been made, consu lt your nearest serv ice dealer . SYMPTOM CAUSE SOLUTION The car ignition switch is not on. If the power supply is properly connected to the car accessory circuits. But the engine is not moving. Switch[...]