Adcom-GTP740-pre-sm维修电路原理图.pdf

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1、details you can hear SERVICE MANUAL DTS/AC3 TUNER PRE-AMPLIFIER GTP-740 TABLE OF CONTENTS Alignment Procedures . . . . . . . . . . . . . . . . . . .2-3 Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-22 IC Block Diagram . . . . . . . . . . . . . . . . . . . . .23-36 Wiring Diagra

2、m . . . . . . . . . . . . . . . . . . . . . .37-38 PCB Layout . . . . . . . . . . . . . . . . . . . . . . . . .39-48 Schematic Diagram . . . . . . . . . . . . . . . . . . .49-68 Technical Specification . . . . . . . . . . . . . . . . .69-73 10 TIMBER LANE MARLBORD N.J. 07746, USA PHONE: (732) 683-23

3、56 FAX: (732) 683-2358 WEB: RadioFans.CN 收音机爱 好者资料库 2 ALIGNMENT PROCEDURESGTP-740 FM SECTION AF Modulation: 1 kHz, 75kHz Deviation, MONO Mode Store Frequency: 98 MHz, 87.5 MHz, 108 MHz, 90 MHz, 106 MHz RF Level:75-ohm Impedance, Open Circuit OSCILLATION TUNING VOLTAGE Connect DVM between M211 & GND.

4、 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. Co

5、nnect 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. TRACKING Maintain connection of DVM across M213 & M214. Disconnect 10.7 M

6、Hz 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,

7、 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 SUPPRESSION Set modulated signal to Left only. Ad

8、just 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. R

9、adioFans.CN 收音机爱 好者资料库 3 ALIGNMENT PROCEDURESGTP-740 AM SECTION AF 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 T

10、UNING VOLTAGE Connect 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 outp

11、ut. Apply 1404/1400 kHz, 45 dBm. Adjust C220 for maximum output. Repeat until no further improvement. AC3 ASSY PC BOARD 1700AC3 PCB ASSY (A0150C)PCB-A0150C-AC3 PCB AC3 PCB (A0150C)1723-038A-0000 CAPACITOR J003(G)/CHACC 25V 0.01U 20% RL150E-103M-5-IF C065CC 25V 0.47uF +80/-20% 0150E-474Z-J-BD C007,C0

12、36,C039CC 50V 100pF 5% 0805 1.2150F-101J-J-BD C104,C110,C116,C198CC 50V 0.01U 10% 0805150F-103K-J-BD C001,C002,C005,C006,C008-C012,C015,C016,CC 50V 0.1uF 20% 0805 1.150F-104M-J-BD C018,C021,C046,C060-C062,C111-C113,C115, C117,C120,C121,C154,C155,C156,C160,C168, C170,C175,C177,C197,C199,C200 C150CC 5

13、0V 15pF 5% 0805 1.2x150F-150J-J-BD C130,C134,C138,C142,C146,C152CC 50V 220pF 10% 0805 1.150F-221K-J-BD C047CC 50V 2200pF 10% 0805 1150F-222K-J-BD C151CC 50V 33pF 5% 0805 1.2x150F-330J-J-BD C048,C063,C064CC 50V 330pF 10% 0805 1.150F-331K-J-BD C129,C133,C137,C141,C145,C149CC 50V 3900PF 10% 0805150F-39

14、2K-J-BD C101,C103,C106CC 50V 0.47U 20% RM150F-474M-7-IJ C128,C132,C136,C140,C144,C148CC 50V 5600pF 10% 0805150F-562K-J-BD C102CC 50V 82pF 5% 0805 1.2x150F-820J-J-BD C150/U101TRIMCAP 5.2-30P1551-0210-0 C108CE 10V 100uF 20% RL 5x11157C-107M-5-IU u050(1)/gndCE 10V 1000U 20% RL 8x16157C-108M-5-O5A C014C

15、E 10V 470uF 20% RL 8x12157C-477M-5-OW C080,C126,C127,C131,C135,C139,C143,C147,CE 16V 10uF 20% RL 4x7157D-106M-5-GM C157 C013,C019CE 16V 100uF 20% RL 5x11157D-107M-5-IU C022CE 16V 22uF 20% RL 5x5157D-226M-5-II C107CE 16V 47uF 20% RL 5x11157D-476M-5-IU R094/CE 25V 1000uF 20% RL157E-108M-5-X& C180,C181

16、CE 25V 47uF 20% RL 5x11157E-476M-5-IU C017,C038CE 50V 1uF 20% RL 4x7157F-105M-5-GM C003CTC 0/60 10pF 5% 080515CH-100J-J-BDL COIL L002COIL 10UH 10% BL7.01801-100K-M L100COIL 68UH 20% BL71801-680M-M WAFER/SOCKET J001A,J002AWAFER 10PIN P2.54 DUAL2101-0831-0 U022PLCC SOCKET 44 PIN (4X112101-0841-0 J0193

17、 PIN ST. WAFER2102-031S-004 J009,J012,J0224P ST.WAFER2102-041S-004 J0045P ST.WAFER2102-051S-004 J011,J0206P ST. WAFER2102-061S-004 J001WF T8 DE 7PIN COULOMB2102-071S-004 4 PARTS LISTGTP-740 REF NO.DESCRIPTIONPART NO. 5 PARTS LISTGTP-740 J010WAFER 8P P2.5 ST.2102-081S-004 JACK J110,J1121P RCA JACK BK

18、 AU HQ032-2113-1169-1 CRYSTAL M103XTAL 12.288MHZ +/-2300-1520-0 M150XTAL 46.080MHZ +/-2300-1540-0 M111XTAL 18.432MHZ +-30PPM2300-2670-0 SCREW SCREW M3X6 BINDING (BLK)2904-3006-3000 IC U105,U109IC UPC4560C-DUAL OP. AMP3130-2010-0 U090,U111,U112,U113IC AD7123130-3830-0 U013,U107IC 74HC04 HEX INVERTERS

19、3130-5840-0 Q111IC M51943A SYSTEM RESET3130-5860-0 U021IC MC68HC11A1 8-BIT3130-6220-0 U104IC MC14577 VIDEO OP AMP3130-6230-0 U019IC 74HC393 DUAL 4-BIT3130-6260-0 U050IC PD4606AAC3 RF3130-6270-0 U010IC CS4226 20 BITS AD &3130-6280-0 U051IC CY7C188 32KX9 STATIC3130-6320-0 U101IC MAX903 HS VOLT.3130-63

20、40-0 U022IC PSD312 FIELD PGM UCOM3130-7890-0 U012IC SN74HC04 (T.I.)3130-8720-0 RESISTOR C020,R065,R067,R078,R084,R086,R119,R125RMG 1/10W 0R 5% 08054720-000J-J R166,R179RMG 1/10W 1R 5% 08054720-010J-J R118,R127RMG 1/10W 100R 5% 08054720-101J-J R001,R008,R015,R022,R029,R036,R068,R089,RMG 1/10W 1K 5% 0

21、8054720-102J-J R100,R105,R110,R114,R128,R130,R138,R155, R174,R175,R178,R183,R184 R000,R054,R059,R101,R102,R111,R112,R113,RMG 1/10W 10K 5% 08054720-103J-J R116,R123,R139,R141,R142,R143,R148,R153, R156,R177,R181,R193,R194,R195,R196,R197 C004RMG 1/10W 100K 1% 08054720-104A-J R007,R014,R021,R028,R035,R0

22、42,R172,R200RMG 1/10W 100K 5% 08054720-104J-J R151RMG 1/10W 1M 5% 08054720-105J-J R180RMG 1/10W 120R 5% 08054720-121J-J R004,R011,R018,R025,R032,R039RMG 1/10W 1.2K 5% 08054720-122J-J R003,R010,R017,R024,R031,R038,R122RMG 1/10W 12K 5% 08054720-123J-J R107RMG 1/10W 150R 5% 08054720-151J-J R088,R171RMG

23、 1/10W 1.5K 5% 08054720-152J-J R103,R115,R117RMG 1/10W 220R 5% 08054720-221J-J /C199,R043-R048,R108,R124,R140,R182,R198RMG 1/10W 2.2K 5% 08054720-222J-J R049,R150RMG 1/10W 22K 5% 08054720-223J-J R120,R121,R199RMG 1/10W 220K 5% 08054720-224J-J R187,R189RMG 1/10W 24K 5% 08054720-243J-J REF NO.DESCRIPT

24、IONPART NO. 6 PARTS LISTGTP-740 R109RMG 1/10W 330R 5% 08054720-331J-J R002,R009,R016,R023,R030,R037RMG 1/10W 3.9K 5% 08054720-392J-J R055RMG 1/10W 47R 5% 08054720-470J-J R005,R006,R012,R013,R019,R020,R026,R027,RMG 1/10W 470R 5% 08054720-471J-J R033,R034,R040,R041,R079,R173,R191 R051,R090,R093,R094,R

25、106,R190RMG 1/10W 4.7K 5% 08054720-472J-J R050,R060,R063,R095,R126,R131,R132,R145,R192RMG 1/10W 47K 5% 08054720-473J-J R071-R077RMG 1/10W 5.1K 5% 08054720-512J-J R176RMG 1/10W 68R 5% 08054720-680J-J R188RMG 1/10W 6.8K 5% 08054720-682J-J R144RMG 1/10W 68K 5% 08054720-683J-J R061,R064RMG 1/10W 75R 5%

26、08054720-750J-J R092,R129RMG 1/10W 7.5K 5% 08054720-752J-J R104RMG 1/10W 82R 5% 08054720-820J-J DIODE Q110/Q109DIODE IN4001 AL4804-0010-1 D101DIODE 1N4148 ATS4804-1480-C D003DZ 1/2W 5.45-5.73 ROHM4837-5B61-2 D103,D104RLS-73 DIODE4840-1080-3 D102VARICAP DIODE BB7294840-1490-0 TRANSISTOR Q100-Q107TR 9

27、014C HFE 200-6004859-014C-5 Q108,Q112TR SS8050 C/D SAMSUNG RL4860-0050-5 Q109,Q110TR SS8550 C/D SAMSUNG RL4860-0060-5 SWITCH J109DPDT SLIDE5200-3171-0-01 MISCELLANEOUS U110BAND PASS FILTER2704-0070-0 WSER FIBRA 1103A D3.32848-0032-0 HEX STANDOFF M3X114132-7131-0 J111LIGHT RX UNIT GPIF32R4811-F32R-3

28、AUDIO ASSY PC BOARD 1000AUDIO PCB ASSY A0150CPCB-A0150C-ADO PCB 1001PCB AUDIO/PSU/JACK1722-780A-0101 CAPACITOR C401-C410,C436,C438,C440,C442,C454,C456,CC 50V 100pF 10% AT 3.5x150F-101K-2-FC C464,C470,C477,C479,C482,C485 C735CC 50V 0.01uF 10% RL 5x5150F-103K-5-II C411,C413,C415,C417,C428,C429,C458,C4

29、93,CC 50V 0.1uF 10% RL 5x5150F-104K-5-II C727,C731 C487,C490CC 50V 220pF 10% AT 3.5x150F-221K-2-FC REF NO.DESCRIPTIONPART NO. 7 PARTS LISTGTP-740 C462,C468,C474CM 50V 2200PF 5% RL 5X7153F-222J-5-IM C710CM 50V 0.022UF 5% RL153F-223J-5-LQ C461,C467,C475CM 50V 3900pF 10% RL 6x1153F-392K-5-KW C733,C734,

30、C736CE 10V 1000uF 20% RL157C-108M-5-S5 C488,C491CE 16V 100uF 20% RL 5x11157D-107M-5-IU C728,C732CE 25V 2200UF 20% RL157E-228M-5-X&K C443/D409CE 50V 1uF 20% RL 4x7157F-105M-5-GM C709CE 50V 1uF 20% RL 5x11157F-105M-5-IU C412,C414,C416,C418-C427,C430,C431,C433,CE 50V 10uF 20% RL 4x7157F-106M-5-GM C435,

31、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-C724 C711,C712CE 50V 10uF 20% RL 5x11157F-106M-5-IU C725,C730CE 3300UF 50V 20% RL8910-0008-0 COIL L401FERRITE COIL 22UH BL8.51807-220J-P WAFER J7632P ST

32、.WAFER2102-021S-004 J473,J477,J743,J7443 PIN ST. WAFER2102-031S-004 J444,J480,J733,J737,J740,J742,J770,J7954P ST.WAFER2102-041S-004 J735,J7365P ST.WAFER2102-051S-004 J738,J7396P ST. WAFER2102-061S-004 J478WF T8 DE 7PIN COULOMB2102-071S-004 J741WAFER 8P P2.5 ST.2102-081S-004 J7659-PIN WAFER2102-091S-

33、004 J731,J73212P ST.WAFER2102-121S-004 J481,J483,J484,J4862P RCA R/W (GOLD PLATE)2103-9202-0 JACK J482,J485,J4874P RCA R/W AU2113-0104-0 J4881P RCA JACK BK AU HQ032-2113-1169-1 J4892P RCA JACK BK/BK AU2113-1174-0 SCREW U426/427SCREW M3X8 (BLK)2904-3008-3000 U426/427SCREW BH 2.6X6 BLACK2954-2606-3000

34、 IC U426,U427IC 7805 REG 5V 1.5A3130-2020-3 U419IC 4094 8-BIT SIPO SR 3S3130-3600-0 U403IC TC9176 ELECTRONIC3130-3690-0 U401IC TC9163AN HV ANALOG SW3130-3710-1 U402,U411IC TC9164AN HV ANALOG SW3130-3730-1 U404-U408,U412-U418,U422-U425IC AD7123130-3830-0 U420,U421IC 74HC573 8X D-TYPE3130-6140-0 RELAY

35、 M401RELAY 2P2T BT-12S 12VDC4500-0200-1 REF NO.DESCRIPTIONPART NO. 8 PARTS LISTGTP-740 RESISTOR R401,R403,R405,R407,R409,R411,R413,R415,RMF 1/8W 1K 1% AT4711-102A-2 R417,R419,R422,R428,R429,R431,R432,R434, R435,R437,R438,R711,R716,R723 R423,R441,R442,R445,R451,R457,R459,R460,RMF 1/8W 10K 1% ATS4711-

36、103A-C R462,R468,R472,R474,R475,R479,R486,R488, R490,R491,R499,R722,R724,R727,R729,R733, R734,R735,R756-R767 R731RMF 100K 1/8W 1% AT4711-104A-2 R443,R465,R481,R495RMF 1/8W 100K 1% ATS4711-104A-C R710,R715,R725,R730,R776,R777RMF 1/8W 12K 1% AT4711-123A-2 R402,R404,R406,R408,R410,R412,R414,R416,RMF 1/

37、8W 20K 1% AT4711-203A-2 R418,R420 R741RMF 1/8W 22R 1% ATS4711-220A-C R448,R454,R732RMF 1/8W 2.2K 1% ATS4711-222A-C R449,R455,R456,R458,R470,R471,R473,R477,RMF 1/8W 22K 1% AT4711-223A-2 R487,R489,R493,R702,R704,R706,R713,R718, R751,R768-R773,R778-R781 R421,R424,R427,R430,R433,R436,R439,R440,RMF 1/8W

38、220K 1% AT4711-224A-2 R444,R450,R461,R466,R478,R484,R497,R707, R721 R467,R485,R498RMF 1/8W 3.9K 1% AT4711-392A-2 R742-R747RMF 1/8W 470R 1% ATS4711-471A-C R425,R712,R717,R749,R753,R754RMF 1/8W 4.7K 1% ATS4711-472A-C R720,R748,R750,R804RMF 1/8W 47K 1% ATS4711-473A-C R447,R453,R469,R476,R492,R701,R703,

39、R705RMF 1/8W 560R 1% ATS4711-561A-C R464,R482,R496RMF 1/8W 56K 1% AT4711-563A-2 R463,R480,R494RMF 1/8W 68K 1% AT4711-683A-2 R752RMF 1/8W 7.5K 1% AT4711-752A-2 R446,R452RMF 1/8W 91K 1% AT4711-913A-2 J713-J715,J718,J721-J723RMF 1/4W 1R 1% AT4715-010A-2 R782RMF 1/4W 220R 1% AT4715-221A-2 R714,R719RMF 1

40、/2W 120R 1% AT4717-121A-2 DIODE D401,D403DIODE 1N4001 AT4804-0010-2 D409,D410DIODE 1N4148 AT4804-1480-2 J487/DIODE 1N4148 ATS4804-1480-C D404,D407DZ 1/2W 9.9410.44V ROHM4837-10D1-2 D408DZ 1/2W 3.163.38V ROHM4837-3A31-2 TRANSISTOR Q403-Q405,Q407-Q414TR SS8050 C/D SAMSUNG RL4860-0050-5 Q406,Q415,Q416T

41、R SS8550 C/D SAMSUNG RL4860-0060-5 Q402TR 2SA1015 (G.R.) RL4860-0660-5 Q401TR 2SC1815 (G.R) RL4860-0700-5 HEATSINK U426HEATSINK 23.5X17X355400-1611-0 U427HEATSINK 23.5X17X505400-1702-0 REF NO.DESCRIPTIONPART NO. 9 PARTS LISTGTP-740 MISCELLANEOUS J487/JANTENNA WASHER4131-7701-0 SOLDER TAG4132-1061-0

42、CPU ASSY PC BOARD CPU PCB ASSY (A0150C)PCB-A0150C-CPU PCB DSP PCB (A0150C)1723-039A-0000 CAPACITOR C060,C159,C161-C166,C169,C171,C172,C178,CC 50V 0.1uF 20% 0805 1.150F-104M-J-BD C188-C194 C053,C054CM 50V 4700pF 5% RL 6x7153F-472J-5-KM C179CE 10V 330uF 20% RL 8x12157C-337M-5-OW C195,C196CE 10V 47uF 2

43、0% RL 5x11157C-476M-5-IU CONNECTOR/SOCKET J001B,J002B10 PIN P2.54 CONNECTOR2101-0821-0 0001DIP SOCKET 28PIN W0.602101-0931-0 CRYSTAL M151CRYSTAL 8MHZ2300-1420-0 IC U023,U027,U028IC TC74HC00AP DIGITAL3130-4160-0 U018IC MC56009/88 DSP3130-6200-0 U017IC CY7C109A 128KX83130-6310-0 U024IC 74HC74 DUAL D-T

44、YPE3130-6590-0 U020IC MC56007/66 DSP3130-6670-0 U003IC 27C512-12 512K OTP3130-7440-0 RESISTOR R137,R146,R147RMG 1/10W 0R 5% 08054720-000J-J R062,R066RMG 1/10W 1K 5% 08054720-102J-J R057,R152,R165,R170,R182,R185,R186RMG 1/10W 10K 5% 08054720-103J-J R052,R053,R088,R096-R099,R133-R136,RMG 1/10W 220R 5%

45、 08054720-221J-J R149,R154,R157-R164,R167 HEATSINK 0002,0003HEATSINK IC ANODISED5400-4071-0 MISCELLANEOUS U003AL. FOIL 10 x10mm3100-0601-0 PHONE ASSY PC BOARD 1800PHONE PCB ASSYPCB-A0150C-PHO REF NO.DESCRIPTIONPART NO. 10 PARTS LISTGTP-740 PCB 1801PCB AUDIO/PSU/JACK1722-780A-0101 WAFER J4914P ST.WAF

46、ER2102-041S-004 JACK J490PHONE JACK2113-1011-0 S.VIDEO ASSY PC BOARD 1300S.VIDEO PCB ASSY A0150CPCB-A0150C-SVDO PCB 1301PCB VIDEO/S-VIDEO/VOL1722-790A-0102 CAPACITOR C343CC 25V 0.068uF 10% RL 8x150E-683K-5-OG C316,C319,C328,C331,C335,C341,C352,C354,C385CC 50V 0.1uF 10% RL 5x5150F-104K-5-II C339,C340

47、CC 50V 22pF 5% RL 5x3.5150F-220J-5-IF C348CC 50V 560pF 10% RL 4x4150F-561K-5-GG C342CC 50V 680pF 10% RL 4x4150F-681K-5-GG C349CM 50V 1000pF 10% RL 6x1153F-102K-5-KW C324,C359,C360,C381,C388CE 10V 100uF 20% RL 5x11157C-107M-5-IU C329,C355CE 10V 470UF 20% RL 8X11157C-477M-5-OU C358CE 16V 100uF 20% RL

48、5x11157D-107M-5-IU C386CE 16V 33uF 20% RL 5x11157D-336M-5-IU C336CE 25V 3.3uF 20% RL 4x7157E-335M-5-GM C338CE 50V 1uF 20% RL 4x7157F-105M-5-GM C301-C315,C317,C318,C320-C323,C325-C327,CE 50V 10uF 20% RL 4x7157F-106M-5-GM C330,C332-C334,C337,C345-C347,C350,C351, C353,C356,C357 C344CE 50V 2.2uF 20% RL

49、4x7157F-225M-5-GM WAFER J316WAFER 2P P2.5 RIGHT2102-021R-004 J3214P ST.WAFER2102-041S-004 J346WAFER 7P P2.5 RIGHT2102-071R-004 J326WAFER 9P P2.5 RIGHT2102-091R-004 CONNECTOR J701-J7121P DIN CONNECTOR HDC-0502113-1183-0 CRYSTAL M325XTAL 3.58MHZ HC-49/U2300-0930-0 RESISTOR R341,R626RMF 1/8W 1K 1% AT4711-102A-2 R316,R317,R324,R332,R337,R338,R350,R352,RMF 1/8W 10K 1% ATS4711-103A-C R353,R387,R395-R398 REF NO.DESCRIPTIONPART NO. 11 PARTS LISTGTP-740 R335,R336,R384RMF 1/8W 100K 1% ATS4711-104A-C R322RMF 1/8W 1M 1% ATS4711-105A-C R326RMF 1/8W 1.2K 1% ATS4711-122A-C R319,R331