Fisher-DTA100-das-sm维修电路原理图.pdf
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1、Service ManualFILE NO.RREFERENCE No. SM5810251PRODUCT CODE No.164 065 06Desktop Audio SystemDTA-100 (DE)CONTENTSSpecifications .1Laser beam safety precaution.1Tuner adjustment .2Exploded view (cabinet and chassis) .3Parts list . 4IC block diagram and description.6IC & Transistor voltage .8Schematic
2、diagram .10Wiring diagram (CD MAIN A SIDE).12Wiring diagram (CD MAIN B SIDE).13Wiring diagram (DISPLAY & HEADPHONE) .14Wiring connection .rearRadioFans.CN 收音机爱 好者资料库- 1 - Pickup that emits a laser beam is used on this CD section.CAUTION :USE OF CONTROLS OR ADJUSTMENTS ORPERFORMANCE OF PROCEDURES OTH
3、ERTHAN THOSE SPECIFIED HEREIN MAY RESULTIN HAZARDOUS RADIATION EXPOSURE.LASER OUTPUT. 0.6 mW Max. (CW)WAVE LENGTH . 790 nmLASER BEAM SAFETY PRECAUTIONCAUTION INVISIBLE LASER RADIATION WHEN OPEN ANDINTERLOCKS DEFEATED. AVOID EXPOSURE TO BEAM.ADVARSEL USYNLIG LASER STRLING VED BNING, NRSIKKERHEDSAFBRY
4、DERE ER UDE AF FUNKTION, UNDG UDS TTELSEFOR STRLING.VARNING OSYNLIG LASER STRLNING NR DENNA DEL R PPNADOCH SPRR R URKOPPLAD. STRLEN R FARLIG.VORSICHT UNSICHTBARE LASERSTRAHLUNG TRITT AUS, WENNDECKEL GEFFNET UND WENN SICHERHEITSVERRIEGELUNGBERBRCKT IST. NICHT, DEM STRAHL AUSSETZEN.VARO AVATTAESSA JA
5、SUOJALUKITUS OHITETTAESSA OLET ALTTIINANKYMTTMLLE LASERSTEILYLLE. L KATSO STEESEEN.SPECIFICATIONS(CD PLAYER SECTION)Channels .2 channels stereoS/N ratio .60 dBWow & Flutter.Below measurable limitsSampling frequency .44.1 kHzQuantization .16 bits linear/chPickup light source .Semi-conductor laserPick
6、up wave length .790 nmLaser output .Continuous wave max. 0.6 mW(RADIO SECTION)Tuning range .FM : 87.5 - 108 MHzAM : 522 - 1,611 kHz(9 kHz step)(GENERAL SECTION)Power output .AC : 1.5 W/ch (10% T.H.D)Speaker.8 cm x 2, 4ohmTerminal impedance .PHONES : 32 ohmsPower source .DC : 9 V (AC adaptor)Dimensio
7、ns .430 (W) x 150 (H) x 50 (D) mmWeight (approx.).1.5 kg (Without including batteries)This is a basic specifications.Specifications subject to change without notice.RadioFans.CN 收音机爱 好者资料库- 2 -TUNER ADJUSTMENTSThis is a basic adjustments. Use a plastic screw driver for adjustments. Adjust the interm
8、ediate frequency of AM and FM to the frequency of ceramic filter. Set of unitSupply voltage: DC 12VSpeaker: 8 ohmsStandard output: 50 mWFunction switch: RADIOa.PARTS LOCATIONb. AM ADJUSTMENTBand switch : AMAdjustingEquipmentStepGen.Set RadioTo obtain MAX. output adjust.CircuitConnectionfreq.freq. To
9、MeasurementIFAMConnect Digital Voltmeter tobandCollector of Q404TrackingConnect VTVM and 4 ohmload across speaker terminals.Signal Generator coupled bya loop antenna.Output level must be belowRepeat steps 4 and 5 obtain Maximum output.reference output.456450kHz1611kHz603kHz1404kHz603kHz1404kHz23L703
10、 ant. Coil.TC702 ANT-TRIMMER.1T702522kHz522kHz1611kHz1611kHzT701 (Adjust the voltage to 1.42 +/- 0.2V)Confirm the voltage to 7.05 +/- 0.3Vc. FM ADJUSTMENTBand switch : FMAdjustingEquipmentStepGen.Set RadioTo obtain MAX. output adjust.CircuitConnectionfreq.freq. ToMeasurementFMConnect Digital Voltmet
11、er tobandCollector of Q404TrackingConnect VTVM and 4 ohmload across speaker terminals.Signal Generator to ANT. Output level must be belowreference output.5Repeat steps 3 and 4 obtain Maximum output.T701 (Adjust the voltage to 4 +/-0.2V)Confirm the voltage to 8.1 +/- 0.2VL702(FM RF coil)TC701 ANT-TRI
12、MMER.87.5MHz107.9MHz90.1MHz106.1MHz87.5MHz107.9MHz90.1MHz106.1MHz1234- 3 -EXPLODED VIEW(CABINET & CHASSIS)1Y14Y143910242425252627811121314151616171719202020222222212121231654545555717273Y02Y02Y03Y04Y05Y05Y06Y07Y08Y08Y08Y09Y10Y10Y12Y12Y12Y12Y13Y13Y13Y13Y13Y13Y10Y11Y09Y06Y02302928- 4 -PARTS LISTCAUTIO
13、N :Regular type resistors and capacitors are not listed. To know those values, refer to the schematic diagram.Regular type resistors are less than 1/4W carbon type and chip resistors.Regular type capacitors are less than 50V and less than 1000F of Ceramic type and Electrolytic type.PRODUCT SAFETY NO
14、TICEEACH PRECAUTION IN THIS MANUAL SHOULD BE FOLLOWED DURING SERVICING. COMPONENTS IDENTIFIED WITH THEIEC SYMBOL! ! ! IN THE PARTS LIST AND THE SCHEMATIC DIAGRAM DESIGNATE COMPONENTS IN WHICH SAFETY CANOF SPECIAL SIGNIFICANCE. WHEN REPLACING A COMPONENT IDENTIFIED , USE ONLY THE REPLACEMENT PARTSDES
15、IGNATED, OR PARTS WITH THE SAME RATINGS OF RESISTANCE, WATTAGE OR VOLTAGE THAT ARE DESIGNATEDIN THE PARTS LIST IN THIS MANUAL. LEAKAGE-CURRENT OR RESISTANCE MEASUREMENTS MUST BE MADE TODETERMINE THAT EXPOSED PARTS ARE ACCEPTABLY INSULATED FROM THE SUPPLY CIRCUIT BEFORE RETURNINGTHE PRODUCT TO THE CU
16、STOMER.REF.NO.PART NO.DESCRIPTIONPACKING & ACCESSORIESREF.NO. PART NO. DESCRIPTION645 053 4324INSTRUCTION MANUAL645 053 4331CARTON INNER645 031 1703POLYBAG645 045 5636POLY BAG,I/B645 045 5629POLY BAG,MAIN UNIT645 045 6770POLYFOAM,SPEAKER PORTECT645 051 1639POLYFOAM SHEET645 051 1646POLYFOAM SHEET645
17、 053 4355CARTON OUTER FOR 4 SE645 045 6114GIFT BOX HANDLE! ! !645 051 1547AC ADAPTOR645 045 6732REMOTE CTL,FISHER645 045 4646ASSY SPK NET BCABINET & CHASSISREF.NO. PART NO. DESCRIPTION1645 045 5346CD DOOR LENS3645 045 4714ASSY CD LID8645 045 6015METAL COVER,DISPLAY PCB9645 045 5544CD LID OPEN SPRING
18、10645 045 4684ASSY CABINET FRONT11645 045 6008GEAR MOUNTING BKT12645 045 6053GEAR DAMPER,29TO-E13645 045 5964CD DOOR OPEN KNOB14645 045 7548DOOR OPEN HOOK15645 045 5537OPEN KNOB SPRING16645 042 1532CUSHION RUBBER,CD MECHA17645 045 6039MECH MTG PLATE A19645 045 4707ASSY CABINET REAR20645 045 5353STAN
19、D ADAPTOR,SPK L/R, UNIT21645 045 5261STAND REAR CAB UNIT/SPK22645 045 5698STAND RUBBER FOOT NATURE RUBB23645 051 1455ASSY MOUNTING BAR,SCREW24645 045 4639ASSY SPK NET A25645 045 4653ASSY SPK FRONT26645 053 4812ASSY SPK REAR L27645 053 4805ASSY SPK REAR R28645 045 5926CD MECHA TPP33B,KIT29645 045 597
20、1TOP FUNCTION KNOB30645 045 5438SENSOR LENS,W/TAPEFIXING PARTSREF.NO. PART NO. DESCRIPTIONY02645 036 5911TAPPING SCR 1.7X4,DISPLAY BDY03645 045 5513MACHINE SCR 2X3,GEAR TO GEAR MTG BKTY04645 042 1563TPP SCR 2X4,GEAR MTG BKT TO F CABY05645 045 5520FBIRE WASHER,DOOR OPEN HOOKY06645 042 1563TPP SCR 2X4
21、,DOOR OPEN HOOK TO F CABY07645 045 5469TAPPING SCR 2X6,MECH MTG PLATE TO F CABY08645 045 5469TAPPING SCR 2X6,MAIN PCB TO F CABY09645 045 5469TAPPING SCR 2X6,JACK PCBTO REAR CABY10645 031 3684TAPPING SCR2X10,REAR CABY11645 045 5483TAPPING SCR 2X23,REAR CABY12645 045 5490TAPPING SCR 3X6,SPK TO SPK F C
22、ABY13645 045 5506TAPPING SCR 3X20,SPK REAR CAB TO SPK CABY14645 045 5551PHOTO LENS SCR NUT,W/NI-PLATEDELECTRICAL-PARTSREF.NO. PART NO. DESCRIPTION54645 045 5209SPEAKER 3,W/BLACK CAP55645 045 5902SPEAKER WIRE,W/MONO PLUG SPK L/RDISPLAY P.W.BOARD ASSYREF.NO. PART NO. DESCRIPTION71614 316 3459ASSY,PWB,
23、DISPLAY(Only initial)D0901645 031 3653DIODE 1N4148D0902645 031 3653DIODE 1N4148D0903645 031 3653DIODE 1N4148D0904645 031 3653DIODE 1N4148D0905645 031 3653DIODE 1N4148D0906645 031 3653DIODE 1N4148D0907645 031 3653DIODE 1N4148D0908645 031 3653DIODE 1N4148D0909645 045 5797LEDD0910645 045 5797LEDD091164
24、5 045 5797LEDD0912645 045 5797LEDIC901645 045 4905RPM6938-V4S0901645 045 5155SW TACT,PLAYS0902645 045 5155SW TACT,STOPS0903645 045 5155SW TACT,TU-DNS0904645 045 5155SW TACT,TU-UPS0905645 045 5155SW TACT,MODES0906645 045 5155SW TACT,PROGS0907645 045 5155SW TACT,PRESET-DNS0908645 045 5155SW TACT,PRESE
25、T-UPS0909645 045 5155SW TACT,BAND645 045 5278DISPLAY BRACKET,037DTA100240AA645 045 5322BACK LIGHT LENS,037DTA100470AA645 045 5919LCD DISPLAY,SDT-A232-TP-O TN POS645 045 6022LCD BRACKET645 045 6060PVC SPL SHEET645 045 6091FLEXIBLE WIRE 18P,TO MAIN BD CN401645 045 6107FLEXIBLE WIRE 19P,TO MAIN BD CN40
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