Adcom-GTP740-pre-sm维修电路原理图.pdf

details you can hearSERVICE MANUALDTS/AC3 TUNER PRE-AMPLIFIERGTP-740TABLE OF CONTENTSAlignment Procedures . . . . . . . . . . . . . . . . . . .2-3Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-22IC Block Diagram . . . . . . . . . . . . . . . . . . . . .23-36Wiring Diagram . . . . . . . . . . . . . . . . . . . . . .37-38PCB Layout . . . . . . . . . . . . . . . . . . . . . . . . .39-48Schematic Diagram . . . . . . . . . . . . . . . . . . .49-68Technical Specification . . . . . . . . . . . . . . . . .69-7310 TIMBER LANEMARLBORDN.J. 07746, USAPHONE: (732) 683-2356FAX: (732) 683-2358WEB: http:/RadioFans.CN 收音机爱 好者资料库2ALIGNMENT PROCEDURESGTP-740FM SECTIONAF Modulation: 1 kHz, 75kHz Deviation, MONO ModeStore Frequency: 98 MHz, 87.5 MHz, 108 MHz, 90 MHz, 106 MHzRF Level:75-ohm Impedance, Open CircuitOSCILLATION TUNING VOLTAGEConnect DVM between M211 & GND.For A16 Front-end Module:Tune to 87.5 MHz, adjust FE4 (osc coil) to read 3 0.5 V.Tune to 108 MHz, adjust FE4 (osc coil) to read 20.5 0.5 V.For G55 or G58 Front-end Module:Tune to 87.5 MHz, adjust FE4 (osc coil) to read 1.6 0.5 V.Tune to 108 MHz, adjust FE4 (osc coil) to read 8.0 0.5 V.I.F.Connect DVM between M213 & M214.Apply 10.7 MHz, 90 dBm via 1 kW resistor to M212.Adjust L208 for 0 50mV reading on DVM.Adjust L209 for minimum distortion (THD).Repeat adjustment until no further improvement.SYNTHESIZER I.F. TRACKINGMaintain connection of DVM across M213 & M214.Disconnect 10.7 MHz tap to M212.Apply 98 MHz, 60 dBm to antenna input.Tune to 98 MHz.Adjust C212 FOR 0 20mV reading on DVM.Fine adjust L209 for minimum distortion.Repeat adjustment until no further improvement.R.F.Apply 98 MHz, 7 dBm for AH, or 21 dBm for C, to antenna input.Check THD.If THD 3%, adjust FE1, FE2 & FE3 in the front-end module with non-metallic tool for minimum THD.Check THD at 90 MHz & 106 MHz with 8 dBm input for AH, or 22 dBm for C.FM Stereo: 1 kHz, 67.5 kHz devi., 60 dBmV, Pilot signal 19 kHz, 7.5 kHz devi.STEREO SEPARATION & PILOT SUPPRESSIONSet modulated signal to Left only.Adjust R263 for minimum output at right channel.Set modulated signal to Right only.Adjust R263 for minimum output at left channel.Repeat until readings are the same.Turn off modulating signal, leaving the pilot tone.Adjust L211 & L212 for minimum outputs on right and left channels respectively.RadioFans.CN 收音机爱 好者资料库3ALIGNMENT PROCEDURESGTP-740AM SECTIONAF Modulation: 400 Hz, 30%.For AH version, store frequencies 603, 999, 1404 kHz.For C & B versions, store frequencies 600, 1000, 1400 kHz.Connect 22 pF ceramic to capacitor between signal generator and antenna terminal.OSCILLATION TUNING VOLTAGEConnect DVM between M211 & GND.Tune to 603/600 kHz.Adjust L205 for 1.75 0.05 V reading on DVM.I.F.Apply 999/1000 kHz, set 45 dBm to antenna input.Tune to 999/1000 kHz.Adjust L207 for maximum output.R.F.Apply 603/600 kHz, 45 dBm.tune to 603/600 kHz.Adjust L206 for maximum output.Apply 1404/1400 kHz, 45 dBm.Adjust C220 for maximum output.Repeat until no further improvement.RadioFans.CN 收音机爱 好者资料库AC3 ASSYPC BOARD1700AC3 PCB ASSY (A0150C)PCB-A0150C-AC3PCBAC3 PCB (A0150C)1723-038A-0000CAPACITORJ003(G)/CHACC 25V 0.01U 20% RL150E-103M-5-IFC065CC 25V 0.47uF +80/-20% 0150E-474Z-J-BDC007,C036,C039CC 50V 100pF 5% 0805 1.2150F-101J-J-BDC104,C110,C116,C198CC 50V 0.01U 10% 0805150F-103K-J-BDC001,C002,C005,C006,C008-C012,C015,C016,CC 50V 0.1uF 20% 0805 1.150F-104M-J-BDC018,C021,C046,C060-C062,C111-C113,C115,C117,C120,C121,C154,C155,C156,C160,C168,C170,C175,C177,C197,C199,C200C150CC 50V 15pF 5% 0805 1.2x150F-150J-J-BDC130,C134,C138,C142,C146,C152CC 50V 220pF 10% 0805 1.150F-221K-J-BDC047CC 50V 2200pF 10% 0805 1150F-222K-J-BDC151CC 50V 33pF 5% 0805 1.2x150F-330J-J-BDC048,C063,C064CC 50V 330pF 10% 0805 1.150F-331K-J-BDC129,C133,C137,C141,C145,C149CC 50V 3900PF 10% 0805150F-392K-J-BDC101,C103,C106CC 50V 0.47U 20% RM150F-474M-7-IJC128,C132,C136,C140,C144,C148CC 50V 5600pF 10% 0805150F-562K-J-BDC102CC 50V 82pF 5% 0805 1.2x150F-820J-J-BDC150/U101TRIMCAP 5.2-30P1551-0210-0C108CE 10V 100uF 20% RL 5x11157C-107M-5-IUu050(1)/gndCE 10V 1000U 20% RL 8x16157C-108M-5-O5AC014CE 10V 470uF 20% RL 8x12157C-477M-5-OWC080,C126,C127,C131,C135,C139,C143,C147,CE 16V 10uF 20% RL 4x7157D-106M-5-GMC157C013,C019CE 16V 100uF 20% RL 5x11157D-107M-5-IUC022CE 16V 22uF 20% RL 5x5157D-226M-5-IIC107CE 16V 47uF 20% RL 5x11157D-476M-5-IUR094/CE 25V 1000uF 20% RL157E-108M-5-X&C180,C181CE 25V 47uF 20% RL 5x11157E-476M-5-IUC017,C038CE 50V 1uF 20% RL 4x7157F-105M-5-GMC003CTC 0/60 10pF 5% 080515CH-100J-J-BDLCOILL002COIL 10UH 10% BL7.01801-100K-ML100COIL 68UH 20% BL71801-680M-MWAFER/SOCKETJ001A,J002AWAFER 10PIN P2.54 DUAL2101-0831-0U022PLCC SOCKET 44 PIN (4X112101-0841-0J0193 PIN ST. WAFER2102-031S-004J009,J012,J0224P ST.WAFER2102-041S-004J0045P ST.WAFER2102-051S-004J011,J0206P ST. WAFER2102-061S-004J001WF T8 DE 7PIN COULOMB2102-071S-0044PARTS LISTGTP-740REF NO.DESCRIPTIONPART NO.RadioFans.CN 收音机爱 好者资料库5PARTS LISTGTP-740J010WAFER 8P P2.5 ST.2102-081S-004JACKJ110,J1121P RCA JACK BK AU HQ032-2113-1169-1CRYSTALM103XTAL 12.288MHZ +/-2300-1520-0M150XTAL 46.080MHZ +/-2300-1540-0M111XTAL 18.432MHZ +-30PPM2300-2670-0SCREWSCREW M3X6 BINDING (BLK)2904-3006-3000ICU105,U109IC UPC4560C-DUAL OP. AMP3130-2010-0U090,U111,U112,U113IC AD7123130-3830-0U013,U107IC 74HC04 HEX INVERTERS3130-5840-0Q111IC M51943A SYSTEM RESET3130-5860-0U021IC MC68HC11A1 8-BIT3130-6220-0U104IC MC14577 VIDEO OP AMP3130-6230-0U019IC 74HC393 DUAL 4-BIT3130-6260-0U050IC PD4606AAC3 RF3130-6270-0U010IC CS4226 20 BITS AD &3130-6280-0U051IC CY7C188 32KX9 STATIC3130-6320-0U101IC MAX903 HS VOLT.3130-6340-0U022IC PSD312 FIELD PGM UCOM3130-7890-0U012IC SN74HC04 (T.I.)3130-8720-0RESISTORC020,R065,R067,R078,R084,R086,R119,R125RMG 1/10W 0R 5% 08054720-000J-JR166,R179RMG 1/10W 1R 5% 08054720-010J-JR118,R127RMG 1/10W 100R 5% 08054720-101J-JR001,R008,R015,R022,R029,R036,R068,R089,RMG 1/10W 1K 5% 08054720-102J-JR100,R105,R110,R114,R128,R130,R138,R155,R174,R175,R178,R183,R184R000,R054,R059,R101,R102,R111,R112,R113,RMG 1/10W 10K 5% 08054720-103J-JR116,R123,R139,R141,R142,R143,R148,R153,R156,R177,R181,R193,R194,R195,R196,R197C004RMG 1/10W 100K 1% 08054720-104A-JR007,R014,R021,R028,R035,R042,R172,R200RMG 1/10W 100K 5% 08054720-104J-JR151RMG 1/10W 1M 5% 08054720-105J-JR180RMG 1/10W 120R 5% 08054720-121J-JR004,R011,R018,R025,R032,R039RMG 1/10W 1.2K 5% 08054720-122J-JR003,R010,R017,R024,R031,R038,R122RMG 1/10W 12K 5% 08054720-123J-JR107RMG 1/10W 150R 5% 08054720-151J-JR088,R171RMG 1/10W 1.5K 5% 08054720-152J-JR103,R115,R117RMG 1/10W 220R 5% 08054720-221J-J/C199,R043-R048,R108,R124,R140,R182,R198RMG 1/10W 2.2K 5% 08054720-222J-JR049,R150RMG 1/10W 22K 5% 08054720-223J-JR120,R121,R199RMG 1/10W 220K 5% 08054720-224J-JR187,R189RMG 1/10W 24K 5% 08054720-243J-JREF NO.DESCRIPTIONPART NO.RadioFans.CN 收音机爱 好者资料库6PARTS LISTGTP-740R109RMG 1/10W 330R 5% 08054720-331J-JR002,R009,R016,R023,R030,R037RMG 1/10W 3.9K 5% 08054720-392J-JR055RMG 1/10W 47R 5% 08054720-470J-JR005,R006,R012,R013,R019,R020,R026,R027,RMG 1/10W 470R 5% 08054720-471J-JR033,R034,R040,R041,R079,R173,R191R051,R090,R093,R094,R106,R190RMG 1/10W 4.7K 5% 08054720-472J-JR050,R060,R063,R095,R126,R131,R132,R145,R192RMG 1/10W 47K 5% 08054720-473J-JR071-R077RMG 1/10W 5.1K 5% 08054720-512J-JR176RMG 1/10W 68R 5% 08054720-680J-JR188RMG 1/10W 6.8K 5% 08054720-682J-JR144RMG 1/10W 68K 5% 08054720-683J-JR061,R064RMG 1/10W 75R 5% 08054720-750J-JR092,R129RMG 1/10W 7.5K 5% 08054720-752J-JR104RMG 1/10W 82R 5% 08054720-820J-JDIODEQ110/Q109DIODE IN4001 AL4804-0010-1D101DIODE 1N4148 ATS4804-1480-CD003DZ 1/2W 5.45-5.73 ROHM4837-5B61-2D103,D104RLS-73 DIODE4840-1080-3D102VARICAP DIODE BB7294840-1490-0TRANSISTORQ100-Q107TR 9014C HFE 200-6004859-014C-5Q108,Q112TR SS8050 C/D SAMSUNG RL4860-0050-5Q109,Q110TR SS8550 C/D SAMSUNG RL4860-0060-5SWITCHJ109DPDT SLIDE5200-3171-0-01MISCELLANEOUSU110BAND PASS FILTER2704-0070-0WSER FIBRA 1103A D3.32848-0032-0HEX STANDOFF M3X114132-7131-0J111LIGHT RX UNIT GPIF32R4811-F32R-3AUDIO ASSYPC BOARD1000AUDIO PCB ASSY A0150CPCB-A0150C-ADOPCB1001PCB AUDIO/PSU/JACK1722-780A-0101CAPACITORC401-C410,C436,C438,C440,C442,C454,C456,CC 50V 100pF 10% AT 3.5x150F-101K-2-FCC464,C470,C477,C479,C482,C485C735CC 50V 0.01uF 10% RL 5x5150F-103K-5-IIC411,C413,C415,C417,C428,C429,C458,C493,CC 50V 0.1uF 10% RL 5x5150F-104K-5-IIC727,C731C487,C490CC 50V 220pF 10% AT 3.5x150F-221K-2-FCREF NO.DESCRIPTIONPART NO.RadioFans.CN 收音机爱 好者资料库7PARTS LISTGTP-740C462,C468,C474CM 50V 2200PF 5% RL 5X7153F-222J-5-IMC710CM 50V 0.022UF 5% RL153F-223J-5-LQC461,C467,C475CM 50V 3900pF 10% RL 6x1153F-392K-5-KWC733,C734,C736CE 10V 1000uF 20% RL157C-108M-5-S5C488,C491CE 16V 100uF 20% RL 5x11157D-107M-5-IUC728,C732CE 25V 2200UF 20% RL157E-228M-5-X&KC443/D409CE 50V 1uF 20% RL 4x7157F-105M-5-GMC709CE 50V 1uF 20% RL 5x11157F-105M-5-IUC412,C414,C416,C418-C427,C430,C431,C433,CE 50V 10uF 20% RL 4x7157F-106M-5-GMC435,C437,C439,C441,C443-C446,C447-C453,C455,C457,C459,C460,C463,C465,C466,C469,C471-C473,C476,C478,C481,C484,C486,C489,C492,C494-C499,C701-C708,C713-C724C711,C712CE 50V 10uF 20% RL 5x11157F-106M-5-IUC725,C730CE 3300UF 50V 20% RL8910-0008-0COILL401FERRITE COIL 22UH BL8.51807-220J-PWAFERJ7632P ST.WAFER2102-021S-004J473,J477,J743,J7443 PIN ST. WAFER2102-031S-004J444,J480,J733,J737,J740,J742,J770,J7954P ST.WAFER2102-041S-004J735,J7365P ST.WAFER2102-051S-004J738,J7396P ST. WAFER2102-061S-004J478WF T8 DE 7PIN COULOMB2102-071S-004J741WAFER 8P P2.5 ST.2102-081S-004J7659-PIN WAFER2102-091S-004J731,J73212P ST.WAFER2102-121S-004J481,J483,J484,J4862P RCA R/W (GOLD PLATE)2103-9202-0JACKJ482,J485,J4874P RCA R/W AU2113-0104-0J4881P RCA JACK BK AU HQ032-2113-1169-1J4892P RCA JACK BK/BK AU2113-1174-0SCREWU426/427SCREW M3X8 (BLK)2904-3008-3000U426/427SCREW BH 2.6X6 BLACK2954-2606-3000ICU426,U427IC 7805 REG 5V 1.5A3130-2020-3U419IC 4094 8-BIT SIPO SR 3S3130-3600-0U403IC TC9176 ELECTRONIC3130-3690-0U401IC TC9163AN HV ANALOG SW3130-3710-1U402,U411IC TC9164AN HV ANALOG SW3130-3730-1U404-U408,U412-U418,U422-U425IC AD7123130-3830-0U420,U421IC 74HC573 8X D-TYPE3130-6140-0RELAYM401RELAY 2P2T BT-12S 12VDC4500-0200-1REF NO.DESCRIPTIONPART NO.RadioFans.CN 收音机爱 好者资料库8PARTS LISTGTP-740RESISTORR401,R403,R405,R407,R409,R411,R413,R415,RMF 1/8W 1K 1% AT4711-102A-2R417,R419,R422,R428,R429,R431,R432,R434,R435,R437,R438,R711,R716,R723R423,R441,R442,R445,R451,R457,R459,R460,RMF 1/8W 10K 1% ATS4711-103A-CR462,R468,R472,R474,R475,R479,R486,R488,R490,R491,R499,R722,R724,R727,R729,R733,R734,R735,R756-R767R731RMF 100K 1/8W 1% AT4711-104A-2R443,R465,R481,R495RMF 1/8W 100K 1% ATS4711-104A-CR710,R715,R725,R730,R776,R777RMF 1/8W 12K 1% AT4711-123A-2R402,R404,R406,R408,R410,R412,R414,R416,RMF 1/8W 20K 1% AT4711-203A-2R418,R420R741RMF 1/8W 22R 1% ATS4711-220A-CR448,R454,R732RMF 1/8W 2.2K 1% ATS4711-222A-CR449,R455,R456,R458,R470,R471,R473,R477,RMF 1/8W 22K 1% AT4711-223A-2R487,R489,R493,R702,R704,R706,R713,R718,R751,R768-R773,R778-R781R421,R424,R427,R430,R433,R436,R439,R440,RMF 1/8W 220K 1% AT4711-224A-2R444,R450,R461,R466,R478,R484,R497,R707,R721R467,R485,R498RMF 1/8W 3.9K 1% AT4711-392A-2R742-R747RMF 1/8W 470R 1% ATS4711-471A-CR425,R712,R717,R749,R753,R754RMF 1/8W 4.7K 1% ATS4711-472A-CR720,R748,R750,R804RMF 1/8W 47K 1% ATS4711-473A-CR447,R453,R469,R476,R492,R701,R703,R705RMF 1/8W 560R 1% ATS4711-561A-CR464,R482,R496RMF 1/8W 56K 1% AT4711-563A-2R463,R480,R494RMF 1/8W 68K 1% AT4711-683A-2R752RMF 1/8W 7.5K 1% AT4711-752A-2R446,R452RMF 1/8W 91K 1% AT4711-913A-2J713-J715,J718,J721-J723RMF 1/4W 1R 1% AT4715-010A-2R782RMF 1/4W 220R 1% AT4715-221A-2R714,R719RMF 1/2W 120R 1% AT4717-121A-2DIODED401,D403DIODE 1N4001 AT4804-0010-2D409,D410DIODE 1N4148 AT4804-1480-2J487/DIODE 1N4148 ATS4804-1480-CD404,D407DZ 1/2W 9.9410.44V ROHM4837-10D1-2D408DZ 1/2W 3.163.38V ROHM4837-3A31-2TRANSISTORQ403-Q405,Q407-Q414TR SS8050 C/D SAMSUNG RL4860-0050-5Q406,Q415,Q416TR SS8550 C/D SAMSUNG RL4860-0060-5Q402TR 2SA1015 (G.R.) RL4860-0660-5Q401TR 2SC1815 (G.R) RL4860-0700-5HEATSINKU426HEATSINK 23.5X17X355400-1611-0U427HEATSINK 23.5X17X505400-1702-0REF NO.DESCRIPTIONPART NO.RadioFans.CN 收音机爱 好者资料库9PARTS LISTGTP-740MISCELLANEOUSJ487/JANTENNA WASHER4131-7701-0SOLDER TAG4132-1061-0CPU ASSYPC BOARDCPU PCB ASSY (A0150C)PCB-A0150C-CPUPCBDSP PCB (A0150C)1723-039A-0000CAPACITORC060,C159,C161-C166,C169,C171,C172,C178,CC 50V 0.1uF 20% 0805 1.150F-104M-J-BDC188-C194C053,C054CM 50V 4700pF 5% RL 6x7153F-472J-5-KMC179CE 10V 330uF 20% RL 8x12157C-337M-5-OWC195,C196CE 10V 47uF 20% RL 5x11157C-476M-5-IUCONNECTOR/SOCKETJ001B,J002B10 PIN P2.54 CONNECTOR2101-0821-00001DIP SOCKET 28PIN W0.602101-0931-0CRYSTALM151CRYSTAL 8MHZ2300-1420-0ICU023,U027,U028IC TC74HC00AP DIGITAL3130-4160-0U018IC MC56009/88 DSP3130-6200-0U017IC CY7C109A 128KX83130-6310-0U024IC 74HC74 DUAL D-TYPE3130-6590-0U020IC MC56007/66 DSP3130-6670-0U003IC 27C512-12 512K OTP3130-7440-0RESISTORR137,R146,R147RMG 1/10W 0R 5% 08054720-000J-JR062,R066RMG 1/10W 1K 5% 08054720-102J-JR057,R152,R165,R170,R182,R185,R186RMG 1/10W 10K 5% 08054720-103J-JR052,R053,R088,R096-R099,R133-R136,RMG 1/10W 220R 5% 08054720-221J-JR149,R154,R157-R164,R167HEATSINK0002,0003HEATSINK IC ANODISED5400-4071-0MISCELLANEOUSU003AL. FOIL 10 x10mm3100-0601-0PHONE ASSYPC BOARD1800PHONE PCB ASSYPCB-A0150C-PHOREF NO.DESCRIPTIONPART NO.RadioFans.CN 收音机爱 好者资料库10PARTS LISTGTP-740PCB1801PCB AUDIO/PSU/JACK1722-780A-0101WAFERJ4914P ST.WAFER2102-041S-004JACKJ490PHONE JACK2113-1011-0S.VIDEO ASSYPC BOARD1300S.VIDEO PCB ASSY A0150CPCB-A0150C-SVDOPCB1301PCB VIDEO/S-VIDEO/VOL1722-790A-0102CAPACITORC343CC 25V 0.068uF 10% RL 8x150E-683K-5-OGC316,C319,C328,C331,C335,C341,C352,C354,C385CC 50V 0.1uF 10% RL 5x5150F-104K-5-IIC339,C340CC 50V 22pF 5% RL 5x3.5150F-220J-5-IFC348CC 50V 560pF 10% RL 4x4150F-561K-5-GGC342CC 50V 680pF 10% RL 4x4150F-681K-5-GGC349CM 50V 1000pF 10% RL 6x1153F-102K-5-KWC324,C359,C360,C381,C388CE 10V 100uF 20% RL 5x11157C-107M-5-IUC329,C355CE 10V 470UF 20% RL 8X11157C-477M-5-OUC358CE 16V 100uF 20% RL 5x11157D-107M-5-IUC386CE 16V 33uF 20% RL 5x11157D-336M-5-IUC336CE 25V 3.3uF 20% RL 4x7157E-335M-5-GMC338CE 50V 1uF 20% RL 4x7157F-105M-5-GMC301-C315,C317,C318,C320-C323,C325-C327,CE 50V 10uF 20% RL 4x7157F-106M-5-GMC330,C332-C334,C337,C345-C347,C350,C351,C353,C356,C357C344CE 50V 2.2uF 20% RL 4x7157F-225M-5-GMWAFERJ316WAFER 2P P2.5 RIGHT2102-021R-004J3214P ST.WAFER2102-041S-004J346WAFER 7P P2.5 RIGHT2102-071R-004J326WAFER 9P P2.5 RIGHT2102-091R-004CONNECTORJ701-J7121P DIN CONNECTOR HDC-0502113-1183-0CRYSTALM325XTAL 3.58MHZ HC-49/U2300-0930-0RESISTORR341,R626RMF 1/8W 1K 1% AT4711-102A-2R316,R317,R324,R332,R337,R338,R350,R352,RMF 1/8W 10K 1% ATS4711-103A-CR353,R387,R395-R398REF NO.DESCRIPTIONPART NO.RadioFans.CN 收音机爱 好者资料库11PARTS LISTGTP-740R335,R336,R384RMF 1/8W 100K 1% ATS4711-104A-CR322RMF 1/8W 1M 1% ATS4711-105A-CR326RMF 1/8W 1.2K 1% ATS4711-122A-CR319,R331RMF 1/8W 12K 1% AT4711-123A-2R315RMF 1/8W 180R 1% AT4711-181A-2R325,R349RMF 1/8W 2K 1% AT4711-202A-2R359RMF 1/8W 20K 1% AT4711-203A-2R348,R383RMF 1/8W 2.2K 1% AT4711-222A-2R318,R321,R333RMF 1/8W 2.2K 1% ATS4711-222A-CR360RMF 1/8W 22K 1% AT4711-223A-2R32