Adcom-GTP502-pre-sm维修电路原理图.pdf

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Adcom-GTP502-pre-sm维修电路原理图.pdf

details you can hear SERVICE MANUAL STEREO TUNER PRE-AMPLIFIER GTP-502 TABLE OF CONTENTS Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3 Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-14 IC Block Diagram . . . . . . . . . . . . . . . . . . . . .15-18 Wiring Diagram . . . . . . . . . . . . . . . . . . . . . .19-20 PCB Layout . . . . . . . . . . . . . . . . . . . . . . . . .21-28 Schematic Diagram . . . . . . . . . . . . . . . . . . .29-42 Technical Specification . . . . . . . . . . . . . . . . .43-44 10 TIMBER LANE MARLBORD N.J. 07746, USA PHONE: (732) 683-2356 FAX: (732) 683-2358 web: http: / RadioFans.CN 收音机爱好者资料库 2 ADJUSTMENTGTP-502 Preparation 1. INPUT - FM mono:1kHz, 75kHz devi., 60dB/V - FM stereo:1kHz, 67.5kHz devi., 60dB/V Pilot signal 19kHz 7.5kHz devi. - AM:400Hz, 30%mod. 1. FM ADJUSTMENT 2. OUTPUTS - Connect the non-inductive type resistor of 8 ohms to all speaker terminals otherwise noted. Item FM IF/RF Stereo Distortion Stereo Separation Muting Level Signal output Step 1DC voltmeterL941 0100mV 3 Distortion analyzer Distortion analyzer Oscilloscope Oscilloscope L942 R956 R941 Minimum Minimum 2AC voltmeter IFT on the front end IFE on the front end Maximum Maximum Connection of instrument Fig.1 Fig.2 Fig.2 Fig.1 Channel L or R 1kHz 99.0MHz 1kHz 75kHz devi. 65dBf (60dB) 99.0MHz Ext. mod. 65dBf (60dB) FM SG output Stereo mod- ulator output Tuning frequency 99.0MHz 99.0MHz Channel L or R 1kHz 99.0MHz Ext. mod. 65dBf (60dB) 99.0MHz 1KHz 75KHz devi 33dB 99.0MHz mod.65dBf (60dB) 99.0MHz 18dB 99.0MHz 99.0MHz Pilot Suppression Signal Strength Indicator Minimum 8 bars just lit VTVM VFD Signal Bars L903 FOR L L904 FOR R R951 Channel L or R pilot on signal Fig.2 Fig.1 99.0MHz 99.0MHz Output indicator Adjustment point Adjust for Remarks FM MUTE/MODE switch: ON/AUTO Repeat the steps 1 to 3 until no fur- ther adjustment is necessary. FM MUTE/MODE switch: ON/AUTO Dont turn more than +/-180 Repeat stereo distortion and stereo separation alignment until THD at minimum and separation at maximum. Adjust such that output just unmute 2. AM ADJUSTMENT 120V model Step 1 2 3 530kHz 600kHz 990kHz 600kHz 400Hz 30% mod. 60dB/m AM SG output Tuning frequency Output indicator Adjustment point 600kHz 400Hz 30% mod. 60dB/m AC voltmeter AC voltmeter Digital DC voltmeter L972 OSC coil on RF block M971 OSC coil on RF block M971 Adjust for 1.350.2V Maximum Maximum Step 1 2 3 522kHz or 531kHz 603kHz 999kHz 600kHz 400Hz 30% mod. 60dB/m AM SG output Tuning frequency Output indicator Adjustment point 600kHz 400Hz 30% mod. 60dB/m AC voltmeter AC voltmeter Digital DC voltmeter L972 OSC coil on RF block M971 OSC coil on RF block M971 Adjust for 1.30.2V (522kHz) 1.350.2V (531kHz) Maximum Maximum 230V model and worldwide models Reference Specification FM tuned voltage: 87.5MHz108.00MHz More than 1.2vLess than 10v AM tuned voltage: 530KHz1710KHz 1.30.2Less than 9.0v Reference Specification FM tuned voltage: 87.5MHz108.00MHz More than 1.2vLess than 10v AM tuned voltage: 522KHz1611KHz 1.30.2Less than 9.0v (230V model) AM tuned voltage: 531KHz1602KHz 1.30.2Less than 9.0v (Worldwide model) RadioFans.CN 收音机爱好者资料库 3 ADJUSTMENTGTP-502 3. FM MEASUREMENT Fig. 1 Fig. 2 4. RDS MEASUREMENT Fig. 3 5. AM MEASUREMENT Fig. 4 6. ADJUSTMENT POINTS FM SINGAL GENERATOR ANTENNA TERMINAL ANTENNA TERMINAL DISTORTION ANALYZER DISTORTION ANALYZER AC VOLTMETER OSCILLOSCOPE AC VOLTMETER OR OSCILLOSCOPE AC VOLTMETER OR OSCILLOSCOPE OUTPUT TERMINAL OUTPUT TERMINAL L R ANTENNA TERMINAL ANTENNA TERMINAL ANTENNA TERMINAL AM LOOP ANTENNA (Accessory) AM LOOP ANTENNA 60cm DIGITAL MILLIVOLT METER VT FM SIGNAL GENERATOR AM SIGNAL GENERATOR FM SIGNAL GENERATOR RDS GENERATOR OSCILLO- SCOPE TP701 FM STEREO GENERATOR TP-141 DC MILLIVOLT METER UNIT UNIT UNIT UNIT R951 FM SIGNAL STRENGTH FRONT END IFT M901 L942 FM IF L941 L972 AM IF L903 L904 R956 STEREO SEPARATION P901 R941 MUTING L971 OSCRF IR ASSEMBLY 1200IR ASSEMBLYPCB-A0180C-IR PCB BOARD 1201PCB KEYBOARD/RM1/TUNER/MISC1724-670A-0002 METAL MATERIAL 1202ME 2*8 4.0MM BK/RH JHC023-002954-2008-3000 WAFER J501A5P ST.WAFER P=2.5 COULOMB2102-051S-004 JACKS/SOCKET M501DIN 5P 180DEG SOCKET2113-1682-0 ROOM 1 ASSEMBLY 2200ROOM 1 ASSEMBLYPCB-A0180C-RM1 PCB BOARD 2201PCB KEYBOARD/RM1/TUNER/MISC1724-670A-0002 CAPACITORS C201,C202CC 16V 0.22 20% CM 0805 1.2X2.0150D-224M-J-BD C213,C214CC 50V 100pF 5% 0805 1.2X2.0150F-101J-J-BD C215,C216CE 50V 10F 20% RL 4x7157F-106M-5-GM c217,c218CC 16V 0.47 10% 0805/2012 1.5X2.5150D-474K-J-BDL C219,c220CC 50V 100pF 5% 0805 1.2X2.0150F-101J-J-BD C221,C222CC 50V 22pF 5% 0805 1.2x2.0150F-220J-J-BD C223-C226CE 50V 10F 20% RL 4x7157F-106M-5-GM C227,C228CE 25V 4.7F 20% RL 4x7157E-475M-5-GM C229,C230CM 50V 4700pF 10% RL 5x5153F-472K-5-II C231-C234CM 50V 0.056F 5% RL7.5X9.5153F-563J-5-NR C236,C236CM 50V 4700pF 10% RL 5x5153F-472K-5-II C237,C238CP 50V 47pF 5% RL 5.5x10158F-470J-5-JS C241,C242CE 50V 10F 20% RL 4x7157F-106M-5-GM C323,C324CC 16V 0.22 20% CM 0805 1.2X2.0150D-224M-J-BD DIODES D211,D309RLS-73 DIODE4840-1080-3 WAFERS/SOCKETS J131BWAFER 8P P2.5 ST.2102-081S-004 J132A6P ST. WAFER P=2.5 COULOMB2102-061S-004 J210A,J224A4P ST.WAFER P=2.5 COULOMB2102-041S-004 J320ASOCKET (PCB/PCB) 16P P2.0 RA2101-1601-0 J321ASOCKET (PCB/PCB) 4P P2.0 RA2101-1671-0 J322A,J323A4P ST.WAFER P=2.5 COULOMB2102-041S-004 RELAYS M225,M226RELAY V23105-A5303-A201 SIEMENS4500-0920-0 TRANSISTORS Q209TR KTC3875Y4853-875Y-3 Q210TR KTA1504Y4851-504Y-3 Q214,Q215TR 2SC2878 (A,B) RL4860-0770-5 Q218,Q219TR 2SD1012F/G HFE 160-5604851-012F-5 Q310TR FET J1124860-8770-0 Q313,Q314TR 2SC2878 (A,B) RL4860-0770-5 RESISTORS R235,R236RMG 1/10W 1K 1% 08054720-102A-J R237,R238RMG 1/10W 56K 1% 08054720-563A-J R239RMG 1/10W 10K 1% 08054720-103A-J R240RMG 1/10W 7.5K 1% 08054720-752A-J R241,R242RMG 1/10W 15K 5% 08054720-153J-J R243,R244RMG 1/10W 2.2K 1% 08054720-222A-J R245,R246RMG 1/10W 0R 5% 08054720-000J-J R247,R248RMG 1/10W 1M 1% 08054720-105A-J R249,R250RMG 1/10W 3.9K 1% 08054720-392A-J 4 PARTS LISTGTP-502 REF NO.DESCRIPTIONPART NO. 5 PARTS LISTGTP-502 R251,R252RMG 1/10W 4.7K 5% 08054720-472J-J R253-R256RMG 1/10W 7.5K 1% 08054720-752A-J R257,R258RMG 1/10W 1K 1% 08054720-102A-J R259RMG 1/10W 220K 5% 08054720-224J-J R260RMG 1/10W 680K 5% 08054720-684J-J R261-R264RMG 1/10W 6.8K 1% 08054720-682A-J R265-R268RMG 1/10W 1K 1% 08054720-102A-J R269,R270RMG 1/10W 6.8K 1% 08054720-682A-J R271,R272RMG 1/10W 100R 1% 08054720-101A-J R273,R274RMG 1/10W 220K 1% 08054720-224A-J R275,R276RMG 1/10W 10K 5% 08054720-103J-J R277-R279RMG 1/10W 0R 5% 08054720-000J-J R280RMG 1/10W 220K 5% 08054720-224J-J R281,R282RMG 1/10W 10K 5% 08054720-103J-J R283RMG 1/10W 680K 5% 08054720-684J-J R284,R285RMG 1/10W 220K 5% 08054720-224J-J R286,R287RMG 1/10W 0R 5% 08054720-000J-J R295,R296RMG 1/10W 1.2K 5% 08054720-122J-J R297RMG 1/10W 10K 5% 08054720-103J-J R298,R299,R322RMG 1/10W 100K 5% 08054720-104J-J R323RMG 1/10W 10M 5% 08054720-106J-J R365RMG 1/10W 10K 5% 08054720-103J-J R366,R367RMG 1/10W 100R 1% 08054720-101A-J R368RMG 1/10W 10K 5% 08054720-103J-J R451,R452RMG 1/10W 2.2K 5% 08054720-222J-J R455RCF 1/4W 150R 5% AT4705-151J-2 R801-R816RMG 1/10W 1.2K 1% 08054720-122A-J R817-R832RMG 1/10W 3.3K 1% 08054720-332A-J R833-R848RMG 1/10W 1.2K 1% 08054720-122A-J R849-R864RMG 1/10W 3.3K 1% 08054720-332A-J R865,R866RMG 1/10W 1.2K 1% 08054720-122A-J R867,R868RMG 1/10W 3.3K 1% 08054720-332A-J R869,R870RMG 1/10W 1.2K 1% 08054720-122A-J R871,R872RMG 1/10W 3.3K 1% 08054720-332A-J R873,R874RMG 1/10W 100R 1% 08054720-101A-J R875,R876RMG 1/10W 22K 1% 08054720-223A-J R877RMG 1/10W 10K 1% 08054720-103A-J R878RMG 1/10W 7.5K 1% 08054720-752A-J ICs U202-U205IC 7AA HIGH SPEED OP AMP3130-7430-0 U206,U207IC TC9273F-004 ANALOGUE SWITCH (FLAT-PACK)3131-6790-0 U307,U333IC TC9273F-004 ANALOGUE SWITCH (FLAT-PACK)3131-6790-0 KEYBOARD ASSEMBLY *USKEYBOARD ASSEMBLYPCB-A0180C-KEY *CEKEYBOARD ASSEMBLYPCB-A0181C-KEY METAL MATERIALS 1101HOLDER LED4132-6601-0 1103WSER FIBRA 1103A D3.32848-0032-0 PCB BOARD 1102PCB KEYBOARD/RM1/TUNER/MISC1724-670A-0002 CAPACITORS C601-C604CC 50V 470pF 5% 0805 1.2X2.0150F-471J-J-BD C605CE 50V 10F 20% RL 4x7157F-106M-5-GM C606CC 50V 0.1F 20% 0805 1.2X2.0150F-104M-J-BD C607CTC 0/30 22pF 5% 0805 1.2X2.515CG-220J-J-BD C608CE 6.3V 47F 20% RL 4x7157B-476M-5-GM C609CE 50V 10F 20% RL 4x7157F-106M-5-GM C613CC 50V 0.1F 20% 0805 1.2X2.0150F-104M-J-BD C614CC 50V 470pF 5% 0805 1.2X2.0150F-471J-J-BD DIODES D601RLS-73 DIODE4840-1080-3 D619DZ 1/2W 5.0-5.2V AT4837-4C20-2 REF NO.DESCRIPTIONPART NO. 6 PARTS LISTGTP-502 LEDS D603-D605LED SP 3X5.5 L0.5 RD3700-2380-R D607-D609LED SP 3X5.5 L0.5 RD3700-2380-R D611LED SP 3X5.5 L0.5 RD3700-2380-R D614LED SP 3X5.5 L0.5 RD3700-2380-R D616-D618LED RT 5X2X7MM RED3700-5577-R WAFERS J601AFLEXIBLE CONN. 35P P1.25 TOP ENTEY2101-1591-0 J6022P ST.WAFER P=2.5 COULOMB2102-021S-004 J6096P ST. WAFER P=2.5 COULOMB2102-061S-004 M6276 PIN HEADER SINGLE ROW 827312-6 AMP2101-2350-0 COIL L602IND FXD LAL03A 220U PM101801-221K-M SWITCHES M603-M613SWITCH, TACT SKHHBY 7MM HIGH5200-3538-0 M615-M618SWITCH, TACT SKHHBY 7MM HIGH5200-3538-0 M621-M624SWITCH, TACT SKHHBY 7MM HIGH5200-3538-0 LED DISPLAY M626VFD BJ740GNK FUTABA (GTP506)2460-1910-0 M629-M632TACT SWITCH (RIGHT ANGLE)5200-4721-0 IR SENSOR M627IR SENSOR PIC-26043TM2 KODENSHI4816-043T-3 TRANSISTORS Q602-Q604TR KTC3875Y4853-875Y-3 Q606-Q610TR KTC3875Y4853-875Y-3 Q612TR KTA1504Y4851-504Y-3 Q613-Q617TR KTC3875Y4853-875Y-3 VOLUME R245VR (BALANCE)4750-9665-0 RESISTORS R602RMG 1/10W 4.7K 5% 08054720-472J-J R603RMG 1/10W 2.2K 5% 08054720-222J-J R604RMG 1/10W 1.2K 5% 08054720-122J-J R605RMG 1/10W 820R 5% 08054720-821J-J R606RMG 1/10W 470R 5% 08054720-471J-J R607,R608RMG 1/10W 3.3K 5% 08054720-332J-J R609RMG 1/10W 470R 5% 08054720-471J-J R610RMG 1/10W 820R 5% 08054720-821J-J R611RMG 1/10W 1.2K 5% 08054720-122J-J R612RMG 1/10W 2.2K 5% 08054720-222J-J R613RMG 1/10W 4.7K 5% 08054720-472J-J R614RMG 1/10W 3.3K 5% 08054720-332J-J R615RMG 1/10W 0R 5% 08054720-000J-J R616RMG 1/10W 470R 5% 08054720-471J-J R617RMG 1/10W 820R 5% 08054720-821J-J R618RMG 1/10W 1.2K 5% 08054720-122J-J R620RMG 1/10W 3.3K 5% 08054720-332J-J R621RMG 1/10W 0R 5% 08054720-000J-J R622RMG 1/10W 470R 5% 08054720-471J-J R623RMG 1/10W 820R 5% 08054720-821J-J R624RMG 1/10W 1.2K 5% 08054720-122J-J R626-R629RMG 1/10W 470R 5% 08054720-471J-J R630RMG 1/10W 10K 5% 08054720-103J-J R631RMG 1/10W 470R 5% 08054720-471J-J R632RMG 1/10W 100K 5% 08054720-104J-J R635RMG 1/10W 10K 5% 08054720-103J-J R636RMG 1/10W 390R 5% 08054720-391J-J R637RMG 1/10W 10K 5% 08054720-103J-J R638RMG 1/10W 390R 5% 08054720-391J-J R639RMG 1/10W 10K 5% 08054720-103J-J R640RMG 1/10W 390R 5% 08054720-391J-J REF NO.DESCRIPTIONPART NO. 7 PARTS LISTGTP-502 R643RMG 1/10W 10K 5% 08054720-103J-J R644RMG 1/10W 390R 5% 08054720-391J-J R645RMG 1/10W 10K 5% 08054720-103J-J R646RMG 1/10W 390R 5% 08054720-391J-J R647RMG 1/10W 10K 5% 08054720-103J-J R648RMG 1/10W 390R 5% 08054720-391J-J R649RMG 1/10W 10K 5% 08054720-103J-J R650RMG 1/10W 100K 5% 08054720-104J-J R652,R661RMG 1/10W 390R 5% 08054720-391J-J R662RMG 1/10W 10K 5% 08054720-103J-J R663,R664,R668RMG 1/10W 390R 5% 08054720-391J-J R669RMG 1/10W 10K 5% 08054720-103J-J R670RMG 1/10W 390R 5% 08054720-391J-J R671RMG 1/10W 10K 5% 08054720-103J-J R672RMG 1/10W 390R 5% 08054720-391J-J R673RMG 1/10W 10K 5% 08054720-103J-J R686RMG 1/10W 3.3K 5% 08054720-332J-J R687RMG 1/10W 470R 5% 08054720-471J-J R688RMG 1/10W 820R 5% 08054720-821J-J R689RMG 1/10W 1.2K 5% 08054720-122J-J R690-R692RMG 1/10W 0R 5% 08054720-000J-J R693,R694RMG 1/10W 10K 5% 08054720-103J-J ICs U601IC M35500AFP VFD CONTROLLER MITSUBISHI3131-6760-0 MAIN ASSEMBLY *USMAIN ASSEMBLYPCB-A0180C-MAIN *CEMAIN ASSEMBLYPCB-A0181C-MAIN PCB BOARD 1009PCB MAIN A0190C1724-680A-0003 CAPACITORS C1001,C101CE 16V 10F 20% RL 4x7157D-106M-5-GM C102,C103CE 25V 220F 20% RL 8.5X11157E-227M-5-PU C104,C105CE 35V 2200F 20% RL 16X25157Q-228M-5-5& C121CE 25V 220F 20% RL 8.5X11157E-227M-5-PU C122CE 25V 1000F 20% RL 12.5X25157E-108M-5-X& C125CE 25V 100F 20% RL 6x12157E-107M-5-KW C127,C129CE 10V 220F 20% RL 6x12157C-227M-5-KW C130CE 25V 1000F 20% RL 12.5X25157E-108M-5-X& C133,C134CE 50V 1F 20% RL 5x11157F-105M-5-IU C135CE 50V 100F 20% RL 8x12157F-107M-5-OW C136,C137CE 25V 47F 20% RL 5x11157E-476M-5-IU C201-C204CC 50V 100pF 5% 0805 1.2X2.0150F-101J-J-BD C205-C208CE 50V 10F 20% RL 4x7157F-106M-5-GM C209-C212CC 50V 100pF 5% 0805 1.2X2.0150F-101J-J-BD C247-C250CC 50V 100pF 5% 0805 1.2X2.0150F-101J-J-BD C321,C322CE 25V 4.7F 20% RL 4x7157E-475M-5-GM C501CE 50V 1F 20% RL 5x11157F-105M-5-IU C502CE 50V 3.3F 20% RL 5x11157F-335M-5-IU C503CC 50V 330pF 10% 0805 1.2X2.0150F-331K-J-BD C611,C612CTC 0/30 22pF 5% 0805 1.2X2.515CG-220J-J-BD C620CE 16V 2200F 20% RL 12X20157D-228M-5-W9 C621CE 25V 22F 20% RL 4X7157E-226M-5-GM C800CE 50V 2.2F 20% RL 4x7 ELNA157F-225M-5-GMK C946CE 16V 220F 20% RL 6x12157D-227M-5-KW DIODES D1001RLS-73 DIODE4840-1080-3 D101,D104,D105BRIDGE RECTIFIER RB152 100V 1.5A4840-0490-0 D108DZ 1/2W 12V 5% TEMIC AT4837-12V6-2 D109DZ 1/2W +-5% 3.3V TEMIC AT4837-3V36-2 D116,D119RLS-73 DIODE4840-1080-3 D123-D125SMD DIODE 1SR154-4004840-1150-0 D126ZD 1/2W 21.52-22.63V AT4840-0850-0 D201RLS-73 DIODE4840-1080-3 D203-D206RLS-73 DIODE4840-1080-3 REF NO.DESCRIPTIONPART NO. 8 PARTS LISTGTP-502 D501-D503RLS-73 DIODE4840-1080-3 D510,D619SMD DIODE 1SR154-4004840-1150-0 D620RLS-73 DIODE4840-1080-3 D800DZ 1/2W 6.2V TEMIC AT4837-6V26-2 WAFER/JACKS J130B4P ST.WAFER P=2.5 COULOMB2102-041S-004 J1349 PIN WAFER P=3.962113-1681-0 J314B4P ST.WAFER P=2.5 COULOMB2102-041S-004 J320BWAFER (PCB/PCB) 16P P2.0 ST2101-1641-0 J321BWAFER (PCB/PCB) 4P P2.0 ST2101-1651-0 J322B,J323b4P ST.WAFER P=2.5 COULOMB2102-041S-004 J501B5P ST.WAFER P=2.5 COULOMB2102-051S-004 J601BFLEXIBLE CONN. 35P P1.25 TOP ENTRY2101-1591-0 J910BWAFER (PCB/PCB) 16P P2.0 ST2101-1641-0 M130,M1312-PIN PHONE JACK2113-1674-0 M2016P RCA JACK R/W (GOLD PLATE, GROUND PLATE2113-1666-0 M202,M2034P RCA JACK R/W (GOLD PLATE, GROUND PLATE)2113-1665-0 M2174P RCA JACK R/W (GOLD PLATE, GROUND PLATE)2113-1665-0 COIL L601COIL 100H 10%1801-101K-M RELAYS M101RELAY 12VDC, 125VA 3A DPST4500-0950-0 M104RELAY 12VDC,250VAC,10A SDT-SS-112DM OEG4500-0890-0 M211-M216RELAY 12VDC, 125VA 3A DPST4500-0950-0 TRANSISTORS Q101,Q102,Q106TR KTC3875Y4853-875Y-3 Q107TR 2SA950-Y HFE 100-200485A-950Y-5 Q201TR KTC3875Y4853-875Y-3 Q203-Q208TR KTC3875Y4853-875Y-3 Q212TR KTC3875Y4853-875Y-3 Q213,Q501,Q502TR KTA1504Y4851-504Y-3 Q800TR SS8050 C/D SAMSUNG RL4860-0050-5 Q801TR SS8550 C/D SAMSUNG RL4860-0060-5 Q802TR SS8050 C/D SAMSUNG RL4860-0050-5 RESISTORS j230-j234RCF 1/4W 0R 5% AT4705-000J-2 j239,j250,j251RCF 1/4W 0R 5% AT4705-000J-2 J254RCF 1/4W 150R 5% AT4705-151J-2 R101,R102RMG 1/10W 100R 5% 08054720-101J-J R108,R112RMG 1/10W 10K 5% 08054720-103J-J R118RMG 1/10W 4.7K 5% 08054720-472J-J R119RMG 1/10W 10K 5% 08054720-103J-J R120RMG 1/10W 4.7K 5% 08054720-472J-J R201RMG 1/10W 1K 1% 08054720-102A-J R202RMG 1/10W 47K 1% 08054720-473A-J R203RMG 1/10W 1K 1% 08054720-102A-J R204RMG 1/10W 47K 1% 08054720-473A-J R205RMG 1/10W 1K 1% 0805472

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