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汽车音响指标测试方法.pdf

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汽车音响指标测试方法.pdf

上传人:xcweywk961 2016/7/16 文件大小:0 KB

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汽车音响指标测试方法.pdf

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文档介绍:??????? ? C A R A U D I O G E N E R A L O U T P U T P O W E R C O N N E C T O R P I N ?????????? 1 BACKUP B+ YELLOW WIRE ? IGN ? RED WIRE 3GND ?GROUND ? BLACK WIRE 4RR + ?REAR RIGHT ? VIOLET 5 RR - (REAR RIGHT) VIOLET/BLACK 6 RL+ (REAR LEFT) GREEN 7 RL- (REAR LEFT) GREEN /BLACK 8 FR+ (FRONT RIGHT) GRAY 9 FR- (FRONT RIGHT) GRAY/BLACK 10 FL+ (FRONT LEFT) WHITE 11 FL- (FRONT LEFT) WHITE/BLACK 12 PHONE MUTE PINK 13 AUTO ANTENNA BLUE 14 DIMMER ORANGE 15 FRONT LINE OUT FRONT LINE OUT (RCA) ?BLACK R- CH RED L-CH WHITE 16 REAR LINE OUT REAR LINE OUT (RCA) ?GRAY R- CH RED L-CH WHITE ? FM??? ?(1khz %.DEV) 1 30dB ?????(USABLE SENSITIVITY S/N 30dB ??????? 90Mhz(98Mhz 106Mhz) ?? (LEVEL) ???? dB ?(40 ??)?????? 0dB ????????( ?? ON| OFF ! ) "#$%&' ?( ?30dB ?(#) 10dB) ???*??+,?-?(LEVEL) ?./??0-1234??-1256 (7/5689: ;< 1 =dBm), >?? (LEVEL) ?@- dB ?ABC?- -30dB DEFG HI J 3% ????(. SENSITITV 75khz DEV 3% ? PDF created with pdfFactory Pro trial version ?????? 90Mhz(98Mhz 106Mhz) ?*KH?? 75% ??L MN?? DIST 10%(-20dB) O???PQ*R???S?T+,?- ? (LEVEL)dB ??.LMN121? 3% -SU (9V;< 3% -SU???W? 3% XYZ )?[0+,?-? (LEVEL)dB ?ABC?- 3% LMFGH (\]^ ? (LEVEL)dB ? 11 ?_` 3% LMFGHAB 11) I ' -3dB a ?FGH (-3dB LIMITING SENSITIVITY) ?????? 98Mhz ?? (LEVEL) ?? 66dB ??????? 0dB ??????+,?-? (LEVEL)dB ???$%&12 ?? 3 = dB 0 ??C0-? (LEVEL)dB ?ABC?-3dB -a ?FGHI 4 ???(S/N RATIO ***@1mv INPUT ) ?????? 98Mhz ?? (LEVEL) ?? 66dB ?????? 0dB ????????( ?? ON| OFF ! )"?$%&?(#) 10dB ??$%&129:;< 0dB ?>??121?B ??" ??) ???$%&- ??((O 10dB) ?( \^ ?) ???' ?121? 6?_` ??? AB 30+6=36dB) IABC?-???? I ???? K(IF REJECTION 600khz) ????? 90Mhz ???? DEFGH- dB ??"? FREQ90Mhz ? (FM ??)???* ?? (LEVEL)dB ??.121? 2V 0 ??@- dB ???DEFGH- dB ?AB ??? K- ? I 6????(INTERMEDIATE FREQUENCY) ?????? K????*??+,?- FUNCTION !??Y * ?>?( > ! )0?+,???@- ?? AB ????(\^+,??@^ _` ???? AB ) " # ( $ ) %? K(IMAGE REJECTION1 ????? (AM ?1400khz) ???? DEFGH- dB ???????+,???&