Teac-GF-450-K7-Service-Manual电路原理图.pdf

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1、GF-450K7 NOTESCONTENTS 1 SAFETYINFORMATION.2 2 SPECIFICATIONS.3 3 ADJUSTMENTANDCHECK.4 4 EXPLODEDVIEWANDPARTSLIST .8 5 PCBOARDSANDPARTSLIST.12 6 WIRINGDIAGRAM.18 7 INCLUDEDACCESSORIES .21 Micro Hi-Fi system PC board shown are viewed from parts side. The parts with no reference number or no parts num

2、ber in the exploded views are not supplied. As regards the resistors and capacitors, refer to the circuit diagrams contained in this manual. Parts marked with this sign are safety critical components. they must be replaced with identical components - refer to the appropriate parts list and ensure ex

3、act replacement. Parts of mark can be used only with the version designated. USA - U.S.A.; JPN - Japan ! RadioFans.CN 收音机爱 好者资料库 2 GF-450K7 1 SAFETY INFORMATION Optical pickup : Type : SF-W37SGT Manufacturer : SANYO ELECTRIC CO., LTD. Laser output : Less than 1 mW (Play) on the objective lens Less t

4、han 5 mW (Record) on the objective lens Less than 10 mW (Erase) on the objective lens Wavelength : 783 nm CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER- SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. The lightning flash with arrowhea

5、d symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage” within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is inte

6、nded to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. RadioFans.CN 收音机爱 好者资料库 3 GF-450K7 2 SPECIFICATIONS Amplifier Section Output power 3.5 W + 3.5 W Frequency response 60 Hz to 20 kHz Audio input sensiti

7、vity/Impedance AUX: -6dBV(0.5V)/20k Maximum iutput level AUX:+6dBV(2.0V) CD Recorder Section Media type CD-RW and CD-R for Digital audio (record and playback), CD (playback only) Recording sampling frequency 44.1kHz Frequency response 20Hz to 20kHz (playback:2dB, recording:3dB) Signal to noise ratio

8、 More than 90dB (playback) More than 80dB (recording) Total harmonic distortion Less than 0.05% (playback) Less than 0.07% (recording) Tuner Section Frequency range(FM) 87.5MHz to 108.0 MHz (100 kHz step) USA Frequency range(AM) 530 kHz to 1,720 kHz (10 kHz step) Frequency range(FM) 76.0 MHz to 90.0

9、 MHz (100 kHz step) JPN Frequency range(AM) 522 kHz to 1,620 kHz (9 kHz step) Record Player Section Motor DC servo motor Drive system Belt Drive Speed 33-1/3 rpm, 45 rpm, 78 rpm Wow and Flutter less than 0.35% (WDT) Cartridge type Ceramic Stereo Cartridge Stylus STL-103 Output level 158 -348mV Casse

10、tte tape section Tracking system 4-track, 2-channel stereo Tape speed 4.8 cm/sec Wow&flutter 0.3% Frequency characteristic 125 to 10,000 Hz S/N ratio 45 dB Speaker System Section Unit 70 mm (3”) Impedance 4 ohms GENERAL Power requirements 120V, 60Hz USA Power requirements 100V, 5060Hz JPN Power cons

11、umption 55 W Dimensions (W x H x D) 480 x 230 x 380 mm (18 7/8” x 9 1/16” x 14 15/16”) Weight 11 kg (24 1/4 lb) Standard Accessories Owners manual x 1 Warranty card x 1 45 RPM adaptor x 1 Remote control unit (RC-992) x 1 USA Remote control unit (RC-1069) x 1 JPN Battery (AA, R6, SUM-3) x 2 Quick Sta

12、rt Guide for recording x 1 Stereo RCA pin cable x 1 Design and specifications are subject to change without notice. Weight and dimensions are approximate. Illustrations may differ slightly from production models. 4 GF-450K7 3 ADJUSTMENTS AND CHECKS ALIGNMENT PROCEDURES 3-1 TUNER SECTION Use a screwd

13、river with a plastic or ceramic grip for all adjustment. 3-1-1 FM adjustment 1.Set the function switch to the FM position. 2.Connect the signal generator output through a 75 ohm dummy antenna to ANT on MAIN PCB. 3.Connect the oscilloscope to the speaker terminal. 4.Set the signal generator as listed

14、 in the alignment chart. 3-1-2 AM adjustment 1.Set the function switch to the AM position. 2.Connect the test loop antenna across the output of the signal generator. 3.Connect the oscilloscope to the speaker terminal. 4.Set the signal generator as listed in the alignment chart. 3-1-3 Turntable Secti

15、on 1.Set the function switch to the PHONE position. 2.Connect the oscilloscope to the speaker terminal. 3.Use a HP-4005 record for all adjustment. 3-2 Adjustment and Test Points Spec.Limit123UNIT zHK01- /+525dnE woL zHK03- /+0371dnE hgiH zHK5- /+554 m/vuBd8525zHK 006 m/vuBd8525zHK 0001 m/vuBd8525zHK

16、 0041 m/vuBd4685zHK 006 m/vuBd4665zHK 0001 m/vuBd4665zHK 0041 05. I.F.Rejection(Max.Sens) bd0353zHK 006 ta bd5203zHK 0041 ta)Vm5(noi tcejeR egamI .60 %515.F.1 x 2m/Vm5 ta teewT .70 %/.F.1 x 3 bd5102zHK 0001 tazHK 01- /+.A.C.A .80 zHK9-45 bd0353 %52 W5.36.3 zH521001 zHK22.2 VM013)emuloV niM( esioN &

17、muH .41 bd5304 02. I .F 01. Tuning Range ITEM 03. MAX. Sens. 04. Sen. For -20db S/N 09. Band Width -6db at 10% 1000khz Max Sens 10. A.G.C.(-10db) at 1000KHz 100db/m 11.T.H.D. 74db/m 30%MOD 12. Power Output at 10% THD 80%74db/m 13. Ferq. Resp. -Low -6 db High 15. HUM Modulation 100db/m :DEVORPPA: YB

18、TSET:SKRAMER 120 V UL model Tuner adjustments AM 5 GF-450K7 120 V UL model Tuner adjustments FM Spec.Limit123UNIT zHM5.0- /+5.78dnE woL zHM5.0- /+5.801dnE hgiH zHK2.0- /+7.01 bd0231ZHM 09 bd0231zHM 89 bd0231zHM 601 bd6202zHM 09 bd6202zHM 89 bd6202zHM 601 bd8304 06.Image Rejectionat 106MHzbd8102 bd51

19、52 30 25 db 09. A.F.C Holding at 98MHz 1mV300+/-250KHz bd0454 %21 W5.36.3 %0301 zH05105 zHK45.4 VM51 db bd5281 bd6203 bd31 bd43 ITEM 01. Tuning Range 02. Intermediate Frequency 03.MAX. Sens. 04. Sen. For -30db S/N 05. I.F.Rejection 07.-3db limiting Sens .at98MHz 1mV 08. A.M.Suppressionat 98MHz 1mV 1

20、0.S/N Ratio at 98MHz 1mV 11.T.H.D. 22.5KHz DEV. 12.Power Output at 10% THD 75KHz DEV 1mv Max. v olume T.H.D 13. Ferq. Resp. -6db -Low High 14. HUM & NOISE (Min. Volume) 01.Stereo Indication Sens.at 98Mhz 75KHz Dev.1KHz 02.Separation at 98 MHz 1mV 40KHz Dev. 03. Channel Balance 04. Stereo Distortion

21、at 98MHz 1mV 45KHz Dev. Multiplex: TEST BY :APPROVED:REMARKS 6 GF-450K7 AM I.F. ALIGNMENT 1. Set the POWER BUTTON to POWER ON. 2. Set the Radio and band button to Radio and AM BAND. 3. Connect a SWEEPSCOPE OUTPUT to AM antenna terminal. 4. Connect a SWEEPSCOPE INPUT to pin17 of IC2 through a 1uf cap

22、acitor and ground. STEPSET SIGNALSET DIALADJUSTADJUST FOR 1 4455KHzGANG OPEN T3 CENTER &MAXIMUM OUTPUT AM R.F. ALIGNMENT 1. Connect an RF generator to a standard radiating loop. 2. Connect a SCOPE and VTVM across the speaker output. STEPSET SIGNALSET DIALADJUSTADJUST FOR 1 515KHz GANG CLOSED L6 MAXI

23、MUM OUTPUT 2 1640KHz GANG OPENPVC-D 3600KHz1400KHzL4 41400KHz1400KHzPVC-C 5REPEAT STEPS 3 AND 4 TO OBTAIN BEST TRACKING. FM R.F. ALIGNMENT 1. Connect an RF generator to the FM antenna terminal and ground. 2. Connect a SCOPE & VTVM across the speaker output. STEPSET SIGNALSET DIALADJUSTADJUST FOR 1 7

24、6MHz GANG CLOSED L3 MAXIMUM OUTPUT 2 108MHz GANG OPENPVC-A 390MHz90MHzL2 4106MHz1106MHzPVC-B 5REPEAT STEPS 3 AND 4 TO OBTAIN MAX ADJUST. 100 V JPN model Tuner adjustments 7 GF-450K7 MA I N P CB MAIN PCB GF-450K7 8 4 EXPLODED VIEWS AND PARTS LIST EXPLODE VIEW 9 GF-450K7 REF. NO. PARTS NO. DESCRIPTION

25、 REMARKS 1 56-04GF3500B050 FRONT PANEL (HIPS) JAPAN BLACK JPN 56-04GF3500B030 FRONT PANEL (HIPS) JAPAN BLACK USA 2 56-07GF3500B000 DIAL BRACKET(ABS) 3 56-07GF3501B000 PULLEY BKT (1) (ABS) 4 56-07GF3502B000 PULLEY BKT (2) (ABS) 5 56-07GF35039000 DISPLAY BACKET HOLDER (ABS) 6 56-07GF35049000 TUNING BA

26、CKLIGHT HOLDER(ABS) 7 56-07GF3505B000 LIGHT BKT(ABS) 8 56-14GF3500B010 CD DOOR (ABS)(BLACK 931289) 429C 9 56-22GF35008010 DIAL BACK LIGHT LENS COVER-L(ABS)(gray 91144) 10 56-22GF35018010 DIAL BACK LIGHT LENS COVER-R(ABS)(gray 91144) 11 56-25GF3500B000 DIAL DRUM (ABS) 12 56-54GF35008000 TUNING KNOB (

27、ABS)(gray8402C) 13 56-54GF35018000 VOLUME/REC. LEVEL KNOB (ABS)(gray8402C) 14 56-54GF3502B000 POWER SWITCH KNOB (ABS)(BLACK 931289) 15 56-54GF3503B000 FUNCTION KNOB (ABS)(BLACK 931289) 16 56-54GF3504B000 RECORD KNOB (ABS)(BLACK 931289) 17 56-54GF3505B010 STOP/PLAY/PAUSE KNOB (ABS)(BLACK 931289) 18 5

28、6-54GF3506B010 OPEN/CLOSE KNOB (ABS)(BLACK 931289) 19 56-54GF3507B000 DELETE KNOB (ABS)(BLACK 931289) 20 56-54GF3508B000 SKIP/REW KNOB (ABS)(BLACK 931289) 21 56-57GF35000030 DISPLAY LENS (PMMA)TEAC JPN 56-57GF35000040 DISPLAY LENS (PMMA) USA 22 56-57GF35019000 REC KNOB LENS (PMMA) 23 56-57GF35020000

29、 LCD BACKLIGHT LENS (PMMA) 24 56-57GF35030010 TUNING BACKLIGHT LENS (PMMA) 25 56-69GF3500B000 WOODEN BOX COVER PLATE (ABS)(BLACK 931289) 26 56-75GF3500G000 POINT (ABS) (CHROME) 27 56-76ST1500B000 DIAL PULLEY (POM) 28 56-79GF3500B000 TUNING SHAFT(ABS) 29 57-08ST15000120 PVC PLATE 22x8x1mm (BLACK) 30

30、56-80S16800B000 SPEAKER PANEL STUD (PE) BLACK 31 56-86GF3500B000 SPEAKER FRAME-L (HIPS) 32 56-86GF3501B000 SPEAKER FRAME-R (HIPS) 33 57-26GF35000020 FILTER PLATE (1) 114x22.6x0.1mm 34 57-26GF35000120 FILTER PLATE (2) 118.1x20.8x0.3mm 35 58-263102200020 RUBBER FOOT(PORON) DIA10mm T=2mm 36 58-26318260

31、0020 RUBBER FOOT DIA18 T=6mm (AC619) 37 58-70GF35000420 REAR BOARD 100V TEAC GF-450-K7 JPN 58-70GF35000621 REAR BOARD 120V TEAC GF-450-K7 R1 USA 38 58-71GF35000220 WOODEN PLATE 230 x292x3mm 39 58-71GF35000420 WOODEN BOARD 449.6x58x9mm (BLACK)GF450-K7 40 58-71GF35000520 WOODEN TOP COVER (BLACK) GF450

32、-K7 41 58-73GF35000220 WOODEN BOX (PVC: F-2905-53) GF450-K7 42 61-11GF35000021 CD MACHINE BRACKET (L) 43 61-11GF35000120 CD MACHINE BRACKET (R) 44 61-11GF35000221 WOODEN BRACKET R1 45 61-11SN11600021 PVC BRACKET 46 61-22SG19000020 BUSHING MOUNTING PLATE 47 61-25SCD6600020 CONTACT PLATE (THK 1.2mm) 1

33、1x11x8mm 48 61-57GF35000020 LOOSE LEAF 49 61-57GF35000120 WOODEN BOX OPEN/CLOSE SHAFT 50 61-95T060800020 SPRING DIAL 51 66-120226150321 MACHINE SCREW RoHS MS/BH 2.6x5mm 52 66-120230180321 MACHINE SCREW RoHS MS/BH 3x8mm EXPLODED VIEW 10 GF-450K7 53 66-120230210321 MACHINE SCREW RoHS MS/BH 3x10mm 54 6

34、6-120930214121 MACHINE SCREW RoHS MS/CH 3x14mm (BLACK) 55 66-120240222321 MACHINE SCREW RoHS MS/BH 4x22mm 56 66-120330160321 MACHINE SCREW RoHS MS/PH 3x6mm 57 66-120526140321 MACHINE SCREW RoHS MS/KH 2.6x4mm (H:4mm) 58 66-120830220321 MACHINE SCREW RoHS MS/WH 3x20mm 59 66-140226180321 SELF-TAPPING S

35、CREW RoHS TA/BH 2.6x8mm 60 66-140230180121 SELF-TAPPING SCREW RoHS TA/BH 3x8mm (BLACK) 61 66-140230210121 SELF-TAPPING SCREW RoHS TA/BH 3x10mm (BLACK) 62 66-140230210321 SELF-TAPPING SCREW RoHS TA/BH 3x10mm 63 66-140230212121 SELF-TAPPING SCREW RoHS TA/BH 3x12mm(BLACK) 64 66-140230214121 SELF-TAPPIN

36、G SCREW RoHS TA/BH 3x14mm(BLACK) 65 66-140230214321 SELF-TAPPING SCREW RoHS TA/BH 3x14mm 66 66-140330180321 SELF-TAPPING SCREW RoHS TA/PH 3x8mm 67 66-140330210321 SELF-TAPPING SCREW RoHS TA/PH 3x10mm 68 66-140530180121 SELF-TAPPING SCREW RoHS TA/KH 3x8mm(BLACK) 69 66-140830210321 SELF-TAPPING SCREW

37、RoHS TA/WH 3x10mm 70 66-141430210321 SCREW RoHS TA/WH 3x10mm(HEAD:10mm) 71 66-150330160321 SELF-TAPPING SCREW RoHS TB/PH 3x6mm 72 66-150830180121 SELF-TAPPING SCREW RoHS TB/WH 3x8mm(BLACK) 73 66-170230160103 HARDEN SCREW RoHS STTB 3x6mm AB(BLACK) RoHS 74 67-021300000120 NUT+WASHER DIA M3mm 75 67-021

38、400000020 NUT M4mm 76 68-112403101000 METAL WASHER 4x10 x1mm 77 68-412400000000 RING E TYPE 4mm 78 06-200GF3501001 CD MECH ASSY, CRD-RA2A (205010) 79 18-201GF3500120 H/TRANSFORMER EI66 100V TJ61193F0 JPN 18-203GF3500120 H/TRANSFORMER EI66 120V TU61153F0 USA 80 190021093100220 SPEAKER 3 10W 4 #JHD-SA

39、78-25 81 20-60ST15000000 PHONOGRAPH MECHANISM #H10B (HANPIN) 58-43GF35000020 BELT, PHONOGRAPH MECH 9A10630600 82 41-193220000220 POWER SWITCH (WELLLONG) SP3-22SPA-W4CZ 83 43-500000002020 AC CORD BUSHING T=1.6mm #4N4 84 05-GF4500100000 PCBA-MAIN -JAPAN GF450-K7 JPN 05-GF4500100010 PCBA-MAIN -UL GF450

40、-K7 USA 85 05-GF4500400000 PCBA-DIS-JAPAN GF450-K7 86 PCBA-HP UL. Included in Ref. No. 84 PCBA-MAIN, refer to page 12 87 PCBA-AUX UL. Included in Ref. No. 84 PCBA-MAIN, refer to page 12 88 56-07GF4501B010 PUSH KNOB BRAOKET (ABS) JPN 56-07GF4501B020 PUSH KNOB BRAOKET (ABS) USA 89 56-55GF4500B000 CASS

41、ETTE KNOB (ABS) SP572#931289 90 61-11SCD6600020 REC. PCB BRACKET (1.0mm THK) 91 20-06GF35000020 F/CASS DECK JS-21FB8947-SGS GF450-K7 92 05-GF4502000000 PCBA-CASS -JAPAN GF450-K7 93 56-01GF35000020 45 RPM ADAPTER (100-S300-069) 94 45-113420300150 AC CORD UL APP L=420mm 105C BLK 95 41-142210010820 SWI

42、TCH SSE-22F10-G8-NS/SS-22F10-G8. included in Ref. No. 92 PCBA-CASS, refer to page 17 96 LED PCB . included in Ref. No. 85 PCBA-DIS, refer to page 14 EXPLODED VIEW REF. NO. PARTS NO. DESCRIPTION REMARKS 11 GF-450K7 EXPLODED VIEW REF. NO. PARTS NO. DESCRIPTION REMARKS 97 66-120230216121 MACHINE SCREW

43、RoHS MS/BH 3x16mm (BLACK) 98 66-140230180321 SELF-TAPPING SCREW RoHS TA/BH 3x8mm 99 66-180230235121 SCREW RoHS TC/BH 3x35mm 100 66-140326180321 SELF-TAPPING SCREW RoHS TA/PH 2.6x8mm 101 66-140530210121 SELF-TAPPING SCREW RoHS TA/KH 3x10mm (BLACK) 102 66-140826210321 SELF-TAPPING SCREW TA/WH 2.6x10mm

44、 103 66-170220130321 HARDEN SCREWRoHS TT/BH 2x3mm 104 66-140330212121 SELF-TAPPING SCREW RoHS TA/PH 3x12 (BLACK) 105 56-07GF4500B010 CASSETTE HOLDER (ABS) JPN 56-07GF4500B020 CASSETTE HOLDER (ABS) USA 12 GF-450K7 MAIN PCB HP PCB AUX PCB MAIN PCB HP PCB AUX PCB MAIN PCB 5 PC BOARDS AND PARTS LIST 13

45、GF-450K7 REF. NO. PARTS NO. DESCRIPTION REMARKS 05-GF4500100000 PCBA-MAIN -JAPAN GF450-K7JPN 05-GF4500100010 PCBA-MAIN -UL GF450-K7USA 48-01GF35001121 MAIN PCB 94V0 GF450-K7 C41,42 26-017220760121 E.CAP 2200UF 16V +-80% -20% 105C C43,81,83 26-017100750121 E.CAP 1000UF 16V +-20% 105C C87,102 26-01747

46、0850121 E.CAP 4700UF 25V +-20% 85C CF1 31-026455000120 CERAMIC FILTER KTP455Y CF2 31-028107000110 CERAMIC FILTER SFE10.7MA5-A(3PIN)RED CON,3 43-012200120120 WAFER 2mm 2P 180C CON4 43-012200150120 WAFER 2mm 5P 180C CON5,053 43-012200130120 WAFER 2mm 3P 180C CON6 44-566320055620 5P SHIELDx2C/WIREx2 L=200mm HSG+TML(2.5) J006 CON7 44-515290053520 3P WIRE L=90mm TML+HSG(2) (UL1007#26) J003 CN052 43-012200170120 WAFER 2mm 7P 180C CON8 43-012200214120 WAFER 2mm 14P 180C CON9 44-515290054520 4P WIRE L=90mm TML+HSG(2) (UL1007#26) J004 CON10,11 43-012250120120 WAFER 2.5mm 2P 180C CON1