Adcom-GTP506-pre-sm维修电路原理图.pdf
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1、details you can hearSERVICE MANUALSTEREO TUNER PRE-AMPLIFIERGTP-506TABLE OF CONTENTSAdjustment . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-18IC Block Diagram . . . . . . . . . . . . . . . . . . . . .19-22Wiring Diagram .
2、 . . . . . . . . . . . . . . . . . . . . .23-24PCB Layout . . . . . . . . . . . . . . . . . . . . . . . . .25-34Schematic Diagram . . . . . . . . . . . . . . . . . . .35-50Technical Specification . . . . . . . . . . . . . . . . .51-5210 TIMBER LANEMARLBORDN.J. 07746, USAPHONE: (732) 683-2356FAX: (73
3、2) 683-2358web: http:/RadioFans.CN 收音机爱 好者资料库2ADJUSTMENTGTP-506Preparation1. INPUT- FM mono:1kHz, 75kHz devi., 60dB/V- FM stereo:1kHz, 67.5kHz devi., 60dB/VPilot signal 19kHz 7.5kHz devi.- AM:400Hz, 30%mod.1. FM ADJUSTMENT2. OUTPUTS- Connect the non-inductive type resistor of 8 ohmsto all speaker te
4、rminals otherwise noted.ItemFMIF/RFStereoDistortionStereoSeparationMutingLevelSignaloutputStep1DC voltmeterL9410100mV3DistortionanalyzerDistortionanalyzerOscilloscopeOscilloscopeL942R956R941MinimumMinimum2AC voltmeterIFT on thefront endIFE on thefront endMaximumMaximumConnectionof instrumentFig.1Fig
5、.2Fig.2Fig.1Channel Lor R 1kHz99.0MHz1kHz 75kHz devi.65dBf (60dB)99.0MHz Ext.mod. 65dBf(60dB)FM SGoutputStereo mod-ulator outputTuningfrequency99.0MHz99.0MHzChannel Lor R 1kHz99.0MHz Ext.mod. 65dBf(60dB)99.0MHz 1KHz 75KHz devi33dB99.0MHz mod.65dBf(60dB)99.0MHz 18dB99.0MHz99.0MHzPilotSuppressionSigna
6、lStrengthIndicatorMinimum8 bars justlitVTVMVFD SignalBarsL903 FOR LL904 FOR RR951Channel L orR pilot onsignalFig.2Fig.199.0MHz99.0MHzOutputindicatorAdjustmentpointAdjustforRemarksFM MUTE/MODEswitch: ON/AUTORepeat the steps1 to 3 until no fur-ther adjustment isnecessary.FM MUTE/MODEswitch: ON/AUTODon
7、t turn morethan +/-180Repeat stereodistortion andstereo separationalignment untilTHD at minimumand separation atmaximum.Adjust such thatoutput just unmute2. AM ADJUSTMENT120V modelStep123530kHz600kHz990kHz600kHz400Hz 30% mod.60dB/mAM SGoutputTuningfrequencyOutputindicatorAdjustmentpoint600kHz400Hz 3
8、0% mod.60dB/mACvoltmeterACvoltmeterDigitalDCvoltmeterL972OSC coilon RFblock M971OSC coilon RFblock M971Adjustfor1.350.2VMaximumMaximumStep123522kHzor531kHz603kHz999kHz600kHz400Hz 30% mod.60dB/mAM SGoutputTuningfrequencyOutputindicatorAdjustmentpoint600kHz400Hz 30% mod.60dB/mACvoltmeterACvoltmeterDig
9、italDCvoltmeterL972OSC coilon RFblock M971OSC coilon RFblock M971Adjustfor1.30.2V (522kHz)1.350.2V (531kHz)MaximumMaximum230V model and worldwide modelsReference SpecificationFM tuned voltage: 87.5MHz108.00MHzMore than 1.2vLess than 10vAM tuned voltage: 530KHz1710KHz1.30.2Less than 9.0vReference Spe
10、cificationFM tuned voltage: 87.5MHz108.00MHzMore than 1.2vLess than 10vAM tuned voltage: 522KHz1611KHz1.30.2Less than 9.0v(230V model)AM tuned voltage: 531KHz1602KHz1.30.2Less than 9.0v(Worldwide model)RadioFans.CN 收音机爱 好者资料库3ADJUSTMENTGTP-5063. FM MEASUREMENTFig. 1Fig. 24. RDS MEASUREMENTFig. 35. A
11、M MEASUREMENTFig. 46. ADJUSTMENT POINTSFMSINGALGENERATORANTENNATERMINALANTENNATERMINALDISTORTIONANALYZERDISTORTIONANALYZERACVOLTMETEROSCILLOSCOPEACVOLTMETEROROSCILLOSCOPEACVOLTMETEROROSCILLOSCOPEOUTPUTTERMINALOUTPUTTERMINALLRANTENNATERMINALANTENNATERMINALANTENNATERMINALAM LOOPANTENNA(Accessory)AM LO
12、OPANTENNA60cmDIGITALMILLIVOLTMETERVTFMSIGNALGENERATORAMSIGNALGENERATORFMSIGNALGENERATORRDSGENERATOROSCILLO-SCOPETP701FMSTEREOGENERATORTP-141DCMILLIVOLTMETERUNITUNITUNITUNITR951FM SIGNALSTRENGTHFRONT ENDIFTM901L942FM IFL941L972AM IFL903L904R956STEREOSEPARATIONP901R941MUTINGL971OSCRFRadioFans.CN 收音机爱
13、好者资料库IR INPUT 1 ASSEMBLY1200IR INPUT 1 ASSEMBLYPCB-A0190C-IR1METAL MATERIALS1201L-BRACKET4152-0451-012023X6MM B-TITE (BLK.ZN)2954-3006-30001203SCREW M3X10 (BLK)2904-3010-30001204M3 NUT2640-3022-05401206ME 2*8 4.0MM BK/RH JHC023-002954-2008-3000PCB BOARD1205PCB RM2/RM3/TUNER/MISC. A0190C1724-660A-000
14、1WAFERJ501A6P ST. WAFER P=2.5 COULOMB2102-061S-004JACKSM501DIN 5P 180DEG SOCKET2113-1682-0M502PHONE JACK D3.5 BK JY-3537-01-1402113-1179-0M5034P TERMINAL BLOCK2113-1668-0IR INPUT 2 ASSEMBLY1300IR INPUT 2 ASSEMBLYPCB-A0190C-IR2METAL MATERIALS1301L-BRACKET4152-0451-013023X6MM B-TITE (BLK.ZN)2954-3006-
15、30001303SCREW M3X10 (BLK)2904-3010-30001304M3 NUT2640-3022-05401306ME 2*8 4.0MM BK/RH JHC023-002954-2008-3000PCB BOARD1305PCB RM2/RM3/TUNER/MISC. A0190C1724-660A-0001CAPACITORSC5101CE 16V 10F 20% RL 4x7157D-106M-5-GMC5102CE 16V 10F 20% RL 4x7157D-106M-5-GMWAFERJ502AWAFER 10P P2.5 ST. COULOMB2102-101
16、S-004JACKSM506DIN 5P 180DEG SOCKET2113-1682-0M507PHONE JACK D3.5 BK JY-3537-01-1402113-1179-0M5084P TERMINAL BLOCK2113-1668-0M510DIN 5P 180DEG SOCKET2113-1682-0M511PHONE JACK D3.5 BK JY-3537-01-1402113-1179-0M5124P TERMINAL BLOCK2113-1668-0ICsU5101, U5102IC NJM78L05A 8263130-0640-0REGULATOR ASSEMBLY
17、2300REGULATOR ASSEMBLYPCB-A0190C-REGPCB BOARD2301PCB RM2/RM3/TUNER/MISC. A0190C1724-660A-0001ICsU111IC 7812H 12V REG, T0220F3130-2520-2U115IC 7805 REG 5V 1.5A3130-2020-3REPEATER ASSEMBLY1600REPEATER ASSEMBLYPCB-A0190C-REPPCB BOARD1601PCB RM2/RM3/TUNER/MISC. A0190C1724-660A-00014PARTS LISTGTP-506REF
18、NO.DESCRIPTIONPART NO.RadioFans.CN 收音机爱 好者资料库5PARTS LISTGTP-506WAFERJ503AWAFER 8P P2.5 ST.2102-081S-004JACKSM520-M524PHONE JACK D3.5 BK JY-3537-01-1402113-1179-0METAL MATERIALSM525,M526BRACKET, GROUNDING4132-6221-0RESISTORSR508,R513,R521RCF 1/4W 150R 5% AT4705-151J-2R524,R525RCF 1/4W 150R 5% AT4705-
19、151J-2ROOM ASSEMBLY1700ROOM ASSEMBLYPCB-A0190C-RMPCB BOARD1701PCB RM2/RM3/TUNER/MISC. A0190C1724-660A-0001CAPACITORSC301,C302CC 50V 47pF 5% 0805 1.2x 2.0150F-470J-J-BDC303,C304CE 50V 10F 20% RL 4x7157F-106M-5-GMC305,C306CTC 0/30 22pF 5% 0805 1.2X2.515CG-220J-J-BDC307,C308CE 25V 10F 20% RL 4X7157E-10
20、6M-5-GMC309,C310CE 25V 4.7F 20% RL 4x7157E-475M-5-GMC311CM 50V 4700pF 10% RL 5x5153F-472K-5-IIC312CM 50V 0.056F 5% RL 7.5X9.5153F-563J-5-NRC313CM 50V 4700pF 10% RL 5x5153F-472K-5-IIC314CM 50V 0.056F 5% RL153F-563J-5-NRC315,C316CM 50V 4700pF 10% RL 5x5153F-472K-5-IIC317,C318CP 50V 47pF 5% RL 5.5x1015
21、8F-470J-5-JSC319,C320CE 25V 10F 20% RL 4X7157E-106M-5-GMC321,C322CE 25V 4.7F 20% RL 4x7157E-475M-5-GMC323CE 25V 10F 20% RL 4X7157E-106M-5-GMC324-C327CC 50V 0.1F 10% 0805 1.2X2.0150F-104K-J-BDC328,C329CM 50V 0.056F 5% RL153F-563J-5-NRC350,C351CE 25V 10F 20% RL 4X7157E-106M-5-GMC430,C431CC 50V 100pF 5
22、% 0805 1.2x2.0150F-101J-J-BDDIODED309RLS-73 DIODE4840-1080-3WAFERS/SOCKETSJ311ASOCKET (PCB/PCB) 16P P2.0 RA2101-1601-0J313ASOCKET (PCB/PCB) 4P P2.0 RA2101-1671-0J314AWAFER 4P P2.5 RIGHT2102-041R-004U1113 PIN ST.WAFER P=2.5 COLOMB2102-031S-004U1153 PIN ST.WAFER P=2.5 COLOMB2101-031S-004TRANSISTORSQ30
23、7,Q308TR KTC3875Y4853-875Y-3Q309TR KTA1504Y4851-504Y-3Q310TR FET J1124860-8770-0Q311-Q314TR 2SC2878 (A,B) RL4860-0770-5RESISTORSR313,R314RMG 1/10W 1K 1% 08054720-102A-JR315,R316RMG 1/10W 47K 5% 08054720-473J-JR317RMG 1/10W 100K 5% 08054720-104J-JR318,R319RMG 1/10W 10K 5% 08054720-103J-JR320-R322RMG
24、1/10W 100K 5% 08054720-104J-JR323RMG 1/10W 10M 5% 08054720-106J-JR324RMG 1/10W 22R 5% 08054720-220J-JR325,R326RMG 1/10W 1K 1% 08054720-102A-JR327,R328RMG 1/10W 1M 1% 08054720-105A-JR329-R332RMG 1/10W 3.9K 1% 08054720-392A-JR333,R334RMG 1/10W 6.2K 1% 08054720-622A-JR336RMG 1/10W 1K 1% 08054720-102A-J
25、REF NO.DESCRIPTIONPART NO.RadioFans.CN 收音机爱 好者资料库6PARTS LISTGTP-506R337RMG 1/10W 6.8K 1% 08054720-682A-JR338-R353RMG 1/10W 1.2K 1% 08054720-122A-JR354RMG 1/10W 3.3K 1% 08054720-332A-JR355,R356RMG 1/10W 6.2K 1% 08054720-622A-JR357,R358RMG 1/10W 3.3K 1% 08054720-332A-JR359,R360RMG 1/10W 100R 1% 080547
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