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1、T echnical Manual AM/FM STEREO TUNER RT-961 Table of Contents Specification.1 Parts List.25 Adjustment.78 PCB Assembly.910 Schematic Diagram .1114 SHINSEN-BLD. 4F 10-10 SHINSEN-CHO, SHIBUYA-KU, TOKYO 150-0045, JAPAN Serial. NO. Beginning Quality Uncompromised Y-354A-0108/W Specifications FM Tuner Us
2、able Sensitivity: 14.2 dBf 50dB Quieting Sensitivity: 20.2 dBf (mono) 45.3 dBf (stereo) Signal to Noise Ratio (at 65 dBf): 73 dBf (mono) 70 dBf (stereo) Harmonic Distortion (at 65dBf): 0.2% (mono) 0.3% (stereo) Frequency Response: 10 Hz-15 kHz, 3 dB Capture Ratio: 2.0 dB Alternate Channel Selectivit
3、y: 47 dB (400 kHz) Spurious Response Ratio: 90 dB Image Rejection Ratio: 80 dB IF Rejection Ratio: 80 dB AM Suppression Ratio: 55 dB Stereo Separation (100Hz/1 kHz/10 kHz): 40 dB/45 dB/35 dB Output level: 1V Antenna Input: 75 ohms unbalanced AM Tuner Usable Sensitivity: 500 V/m Selectivity: 25 dB Ha
4、rmonic Distortion: 0.5% Image Rejection Ratio: 45 dB Signal to Noise Ratio: 40 dB Output level: 500 mV Antenna Input: Loop Antenna General Power Consumption: 10 watts Power Requirements (AC): 115 volts, 60 Hz (USA version) 230 volts, 50 Hz (European version) Weight: 3.7 Kg/8.2 lb. Dimensions (W x H
5、x D): 440 x 72 x 275 mm 173/8 x 27/8 x 107/8 RadioFans.CN 收音机爱 好者资料库 LEFT RIGHT OUTPUTS FMAMG ANTENNA POWER DISPLAYAF FM MONO PTYTATP 67908TUNING MEMORY AUTO TUNING PRESET SCANBAND TUNE/ PRESET 12453 EXT REMOTE IN 12V TRIG IN FM RTTP TA AF STEREOTUNEDAUTOMEMORYPRESET RDBSRDS AM/FM STEREO TUNER MODEL
6、 NO. RT-961 POWER CONSUMPTION: 10 W RT-961 AM/FM STEREO TUNER RT-961 AVIS: RISQUE DE CHOC ELECTRIQUENE PAS OUVRIR WARNING:SHOCK HAZARD DO NOT OPEN Appearance RadioFans.CN 收音机爱 好者资料库 2 Parts List 1/4 SYMBOLPARTS NO.DESCRIPTION JK301066 4TR-2166#4 2P PIN JACK R301,315,RM102053 CR14-101J-ACARBON RESIST
7、OR 100R R201,210,303053 CR14-103J-ACARBON RESISTOR 10K R302053 CR14-123J-ACARBON RESISTOR 12K R207,314,316053 CR14-102J-ACARBON RESISTOR 1K R204053 CR14-222J-ACARBON RESISTOR 2.2K D208053 CR14-272J-ACARBON RESISTOR 2.7K R203053 CR14-201J-ACARBON RESISTOR 200R R318053 CR14-221J-ACARBON RESISTOR 220R
8、R209053 CR14-223J-ACARBON RESISTOR 22K R211053 CR14-332J-ACARBON RESISTOR 3.3K RM103053 CR14-472J-ACARBON RESISTOR 4.7K R205053 CR14-473J-ACARBON RESISTOR 47K RM101053 CR14-470J-ACARBON RESISTOR 47R C204,205043 TC500V103CERAMIC CAPACITOR C201,202,213043 TC50V223CERAMIC CAPACITOR 0.022uF C209,CM10204
9、3 TC50V473CERAMIC CAPACITOR 0.047uF CP401,402068 B2P3-VHCONNECTOR POST CP105068 B5B-PH-KSCONNECTOR POST CP102,104068 B7B-PH-KSCONNECTOR POST CP106068 S2B-PH-KSCONNECTOR POST CP103068 S4B-PH-KSCONNECTOR POST CP201068 B7B-EHCONNECTOR POST CN402068 C-4695A02CONNECTOR W/WIRE 2P L230 CN20068 C-4692A22CON
10、NECTOR W/WIRE 5P L250 CN201068 C-4734A05CONNECTOR W/WIRE 7P L180 CN11068 C-4692A21CONNECTOR W/WIRE 8P L150 CS401019 C-4357A03COVER CAP D201,204,205034 T1N4003-TBDIODE D209,302034 T1N4148-86DIODE GND201069 C-4484A00EARTH LUG C212041 UTES1C101-FB ELECTROLYTIC CAPACITOR 16V100uF C211041 UTES1C221-FB EL
11、ECTROLYTIC CAPACITOR 16V220uF C210,301,302041 UTES1E470-FB ELECTROLYTIC CAPACITOR 25V47uF C206041 UTES1V332 ELECTROLYTIC CAPACITOR 35V330uF CM101041 UTES1H100-FB ELECTROLYTIC CAPACITOR 50V10uF C208041 UTES1H010-FB ELECTROLYTIC CAPACITOR 50V1uF C207,307,308041 UTES1H4R7-FB ELECTROLYTIC CAPACITOR 50V4
12、.7uF C203041 UTES1H470-FB ELECTROLYTIC CAPACITOR 50V47uF F201,202036 5ST500 FUSE 250V500MA F201,202069 C-3417AFUSE CLIP JK302065 YKB21-5103AHEAD PHONE JACK JK303065 YKB21-5111AHEAD PHONE JACK 017 4TR-2965HEAT SINK FOR IC201 IC301031 NJM5532DDIC IC302,303031 PC817BIC IC201031 NJM317FIC RMC101031 SBX3
13、010-52BIC R308,309054 TMF1003METAL RESISTOR 100K R310-313054 TMF1001METAL RESISTOR 1K R304,305054 TMF4701METAL RESISTOR 4.7K R306,307054 TMF6801METAL RESISTOR 6.8K R401053 CR1W2M2MOF RESISTOR 2.2M R206,208054 2WS270JFMOF RESISTOR 270R R202054 1WS330JFMOF RESISTOR 330R SW401061 C-4176A08POWER SWITCH
14、PCB ASSY 016X-1320A01-04 RadioFans.CN 收音机爱 好者资料库 3 Parts List 2/4 SYMBOLPARTS NO.DESCRIPTION TS401022 T-1065N01POWER TRANSFORMER CS401044 DE1307E472MSPARK KILLER C305,306044 S50V1000PGSTYROL CAPACITOR 1000PF C309-312044 S50V100PJSTYROL CAPACITOR 100PF Q302,303032 TDTC323TSTRANSISTOR Q201,203032 KRC1
15、07MTRANSISTOR Q202,204,QM101032 KTC3198Y-ATTRANSISTOR Q301032 KRA107MTRANSISTOR CN403068 C-4750A01WIRE ASSY L110 D206034 TRD5.6JST1ZENER DIODE D202034 TRD6.2JST1ZENER DIODE D207034 TRD12JST1ZENER DIODE D203034 TRD30JST1ZENER DIODE CF04023 AHCFM2-450BLAM CERAMIC FILTER JLE/U100,JRE/U100068 TDB04SG BA
16、SE/POST X02023 CSB456F11CERA RESONATOR C38043 TC50V101CERAMIC CAPACITOR 100P C16043 TC50VCH150CERAMIC CAPACITOR 15P C09,58,C59043 TC50VCH270CERAMIC CAPACITOR 27P C08043 TC50VCH330CERAMIC CAPACITOR 33P C37043 TC50V820CERAMIC CAPACITOR 82P C04,07,23047 ECJ2VB1H103KCHIP CAPACITOR 0.01uF C01,06,12,13,17
17、,18,21,22,29,34,40047 ECJ2VB1H223KCHIP CAPACITOR 0.022uF C02,24,25,42047 ECJ2VF1H473ZCHIP CAPACITOR 0.047uF C57047 ECJ2VF1H104ZCHIP CAPACITOR 0.1uF C10047 ECJ2VG1H101JCHIP CAPACITOR 100PF CLU52,CRU52047 ECJ2VG1H100DCHIP CAPACITOR 10PF CL50,CR50047 ECJ2VG1H121JCHIP CAPACITOR 120PF C54047 ECJ2VG1H271J
18、CHIP CAPACITOR 270PF C36047 ECJ2VG1H331JCHIP CAPACITOR 330PF C43047 ECJ2VG1H681JCHIP CAPACITOR 680PF CL52,CR52047 ECJ2VG1H680JCHIP CAPACITOR 68PF CLU50,CRU50047 ECJ2VG1H820JCHIP CAPACITOR 82PF RL57,RR57055 ERJ6GEYJ152VCHIP RESISTOR 1.5K R35055 ERJ6GEYJ182VCHIP RESISTOR 1.8K R01,04,06055 ERJ6GEYJ104V
19、CHIP RESISTOR 100K R16,34,39055 ERJ6GEYJ101VCHIP RESISTOR 100R R07,27055 ERJ6GEYJ103VCHIP RESISTOR 10K R11055 ERJ6GEYJ181VCHIP RESISTOR 180R R10,17,18,19,38055 ERJ6GEYJ102VCHIP RESISTOR 1K RL48,RR48055 ERJ6GEYJ272VCHIP RESISTOR 2.7K R28,41,43055 ERJ6GEYJ223VCHIP RESISTOR 22K R29,37055 ERJ6GEYJ220VCH
20、IP RESISTOR 22R RL46,RR46,RL47,RR47055 ERJ6GEYJ274VCHIP RESISTOR 270K R08,21055 ERJ6GEYJ271VCHIP RESISTOR 270R R56055 ERJ6GEYJ225VCHIP RESISTOR 2M2 R13,33,42,RL49,RR49055 ERJ6GEYJ332VCHIP RESISTOR 3.3K R31055 ERJ6GEYJ392VCHIP RESISTOR 3.9K R20055 ERJ6GEYJ331VCHIP RESISTOR 330R R26055 ERJ6GEYJ393VCHI
21、P RESISTOR 39K R24,30055 ERJ6GEYJ472VCHIP RESISTOR 4.7K R05,15,22055 ERJ6GEYJ471VCHIP RESISTOR 470R R36,40,44055 ERJ6GEYJ473VCHIP RESISTOR 47K R02,32055 ERJ6GEYJ562VCHIP RESISTOR 5.6K R09,12,14055 ERJ6GEYJ561VCHIP RESISTOR 560R R03055 ERJ6GEYJ623VCHIP RESISTOR 62K PCB 016E-4002002300 4 Parts List 3/
22、4 SYMBOLPARTS NO.DESCRIPTION R50055 ERJ6GEYJ681VCHIP RESISTOR 680R R25055 ERJ6GEYJ683VCHIP RESISTOR 68K T01021 RLV152A00COIL AM ANT T03021 RLV154A00COIL AM IFT T02021 RLV155A00COIL AM OSC T04021 RLV157A00COIL FM DET-A T05021 RLV158A00COIL FM DET-B TL06,TR06021 RLV156A00COIL MPX LPF CP20068 B5B-PH-KS
23、CONNECTOR POST CN10068 B8B-PH-KSCONNECTOR POST X03023 HC49U-006 CRYSTAL 4.332MHZ X01023 HC49U-004 CRYSTAL 7.2MHZ D02034 T1N4148-86DIODE C14,35,44041 TUTES1C101-TF ELECTROLYTIC CAPACITOR 16V100uF C05,11041 TUTES1C470-TF ELECTROLYTIC CAPACITOR 16V47uF C46041 TUTES1HR22-TF ELECTROLYTIC CAPACITOR 50V0.2
24、2uF C20,39,49,53,55,56,CL51,CR51041 TUTES1H100-TF ELECTROLYTIC CAPACITOR 50V10uF C03,27041 TUTES1H3R3-TF ELECTROLYTIC CAPACITOR 50V3.3uF C26,28,41041 TUTES1H4R7-TF ELECTROLYTIC CAPACITOR 50V4.7uF C33,45,47041 TUTES1H010-TF ELECTROLYTIC CAPACITOR 50VIuF CF01-03023 SFE10.7M-02FM CERAMIC FILTER FE01092
25、 FTA4-460HFRONT-END IC04031 BU1920FIC IC02031 LA1266IC IC01031 LM7001JUMIC IC03031 LA3401IC L01021 2648601430MICRO INDUCTOR 20.8mH 068 DM-2GM-0 MINI JUMPER PLUG C31042 TP50V332JMYLAR CAPACITOR C30,48042 TP50V223JMYLAR CAPACITOR C32042 TP50V393JMYLAR CAPACITOR VR03051 TRH063MCJ5RSEMI-FIXD RESISTOR VR
26、 220K VR01051 TRH063MCS3RSEMI-FIXD RESISTOR VR 4.7K VR02051 TRH063MCS4RSEMI-FIXD RESISTOR VR 47K C15044 S50V470PJSTYROL CAPACITOR ANT01067 SC0210586NTERMINAL ANTNNA QL08,QR08032 TDTC323TSTRANSISTOR Q03032 KTC3194YTRANSISTOR Q01,Q02,Q07032 KTC3198Y-ATTRANSISTOR Q04,Q05,Q06,Q09032 KRA107MTRANSISTOR TC
27、01045 TZ03N100TRIMMER VD01,VD02034 SVC321SPA-B2VARACTOR DIODE ZD01,ZD03034 TRD5.1JST1ZENER DIODE C116,117047 ECJ2VF1H473ZCHIP CAPASITOR 0.047uF C110-112047 ECJ2VF1H104ZCHIP CAPASITOR 0.1uF C115047 ECJ2VG1H102JCHIP CAPASITOR 1000PF C101-107,114047 ECJ2VG1H101JCHIP CAPASITOR 100PF C109047 ECJ2VG1H821J
28、CHIP CAPASITOR 820PF R101-107,115055 ERJ6GEYJ122VCHIP RESISTOR 1.2K R113,116-120,123,125055 ERJ6GEYJ103VCHIP RESISTOR 10K R131-165055 ERJ6GEYJ124VCHIP RESISTOR 120K R124055 ERJ6GEYJ102VCHIP RESISTOR 1K R121,122055 ERJ6GEYJ2R2VCHIP RESISTOR 2.2R R114,126055 ERJ6GEYJ472VCHIP RESISTOR 4.7K R108-111055
29、ERJ6GEYJ473VCHIP RESISTOR 47K CPF103068 S4B-PH-KSCONNECTOR POST PCB ASSY 016 E-1319A00 5 Parts List 4/4 SYMBOLPARTS NO.DESCRIPTION CPF105068 S5B-PH-KSCONNECTOR POST CPF102,104068 S7B-PH-KSCONNECTOR POST D101-108034 T1N4148-86DIODE C108041 UTES1H220-FB ELECTROLYTIC CAPACITOR 50V22uF FL101035 SVR12MM1
30、8FL TUBE IC101031 CXP82832-316QIC IC102031 AT24C16PC-2.7IC XT101023 CST10.0MTWRESONATOR SW101-123061 C-4679A01TACT SWITCH Q101032 KTC3198Y-ATTRANSISTOR 012 RV4-09A00POWER BOTTON 014 C-4550A02UPPER COVER 014 4TQN-12B#6BOTTOM BOARD 015 RP-392PRINTED REAR CHASSIS 019 4TR-2418UPPER COVER SPACER 019 4TSH
31、-19#2PLASTIC FOOT 50F 021 RLA145A00AM LOOP ANTENNA 034 SEL1124RLED 069 C-4629A01AC INLET 072 4TR-24893.5mm PLUG SHIELD CORD 072 4TR-3228T TYPE ANTENNA 072 C-4620A01AC CORD SET for STD 072 C-4622A01AC CORD SET for AUSTRALIA 072 C-4623A01AC CORD SET for UK 072 C-4624A01AC CORD SET for CEE 072 C-4738A0
32、1PIN PLUG CORD (AU) 081 TY4-04A00INSIDE CARTON 081 TZ-164-1STYROL SIDE MOULDING 092 RR-T92REMOTE UNIT 505 FRT-961FRONT PANEL ASSY OTHERS 6 Tuner Adjustment Method FM Section * Necessary measurement equipment RDS/STEREO Multiplexer, FM/AM Signal Generator, Audio Analyzer, Oscilloscope, Digital Volt M
33、eter (DVM) (A) Center adjust RDS/STEREO Multiplexer Setting - MODE : MONO- Audio Frequency : 1KHz FM Signal Generator Setting - Deviation : 75KHz- Radio Frequency : 98.1MHz- Output Level : 66dB RT961 Setting - FM Frequency : 97.9MHz- FM MODE : MONO 1. Turn FM Signal Generator Modulation on 2. Connec
34、t DVM (+)(-) terminals to Jumper J7 and J8 and measure the volt. 3. If measured voltage is not adjusted within 10mV, Make this measured volt 0 by adjusting T04 (FM-DET-A Coil). : The adjustment should be within 10mV 4. After this adjustment, measure THD(Total Harmonic Distortion) with Audio Signal G
35、enerator 5. Adjust THD to minimum point with T05(FM-DET-B Coil).: THD shuold be within 0.5% (B) Channel Separation adjust RDS/STEREO Multiplexer Setting - MODE : STEREO ( ONLY L-CH Signal OUT )- Audio Frequency : 1KHz FM Signal Generator Setting - Deviation : 75KHz- Radio Frequency : 98.1MHz- Output
36、 Level : 66dB RT961 Setting - FM Frequency : 98.1MHz- FM MODE : STEREO 1. Turn FM Signal Generator Modulation on after modulating only L-CH (or only R-CH) at STEREO Multiplexer. 2. Confirm if STEREOindicator is turned ON on the display 3. Measure output level via Audio Signal Analyzer and make the l
37、evel as standard. 4. Turn FM Signal Generator Modulation on after modulating only R-CH (or only L-CH) at STEREO Multiplexer. 5. Measure output level via Audio Signal Analyzer (measure per a dB) 6. If meaured output level is not lower than -40dB, Adjust output level to minimum position with VR03 ( CH
38、-SEPA. ADJ.). : lower than -40dB (C) TUNED Level adjust RDS/STEREO Multiplexer Setting - MODE : STEREO- Audio Frequency : 1KHz FM Signal Generator Setting - Deviation : 75KHz- Radio Frequency : 98.1MHz- Output Level : 26dB RT961 Setting - FM Frequency : 98.1MHz- FM MODE : STEREO 1. Turn FM Signal Ge
39、nerator Modulation ON (confirm if output level is 26dB) 2. Change the output level of the Generator from 20dB to 30dB and Confirm if STEREO & TUNED indicator of the DISPLAY turns on at 26db(5 dB) 3. If these indicators do not turn on at higher than 26dB(5dB) or do not turn off at lower than 26(5dB)
40、, Adjust VR02 ( FM-ADJ ) up to the moment where STEREO & TUNED indicator turns OFF & ON at 26dB. 4. Confirm if STEREO & TUNED turns OFF when decreasing the output level slowly from 26dB to 25dB, 24dB . (Repeat the above 3. if not OFF in lower than 24dB.) 5. Push RT-961s TUNE UP or DOWN button long a
41、t Signal Generator Output Level 26dB and start Auto search. Confirm if search stops at FM Frequency 98.1MHz. (Examine both of High Freq. - 98.1MHz search , Low Freq. - 98.1MHz search) 7 AM Section * Necessary measurement equipment : AM Signal Generator, Audio Signal Analyzer, Dummy Load, Oscilloscop
42、e, Digital Volt Meter (DVM) (A) VT adjust AM Signal Generator Setting 1. Adjust AM Frequency of RT-961 to 522KHz. (or 520KHz) 2. Connect (-) terminal of DVM with GND ( or chassis ) and connect (+) terminal with Jumper J3 ( VT CHECK ) and mesaure voltage. ( Low Freq. VT) 3. Adjust VT to 1.1V with T02
43、 (AM-OSC Coil). * In case of USA version, AM freq. range is 520KHz 1710KHz. So, adjust as below. at 520KHz, VT = 1.1V ( Low Freq. VT) (B) Output Level adjust AM Signal Generator Setting - Modulation : 30%- Audio Frequency : 400Hz- Output Level : 100dB - Radio Frequency : 603KHz (or 600KHz ) RT-961 S
44、etting - AM Frequency : 603KHz/1404KHz/999KHz (or 600KHz/1400KHz/1000KHz) 1. Turn AM Signal Generator Modulation ON 2. Adjust RT-961 AM Freq. to 603KHz (or 600KHz) and measure output level with Audio Signal analyzer. 3. Adjust output level to maximum point with T01 ( AM-ANT ). 4. Adjust AM Signal Ge
45、nerator & RT-961 AM Frequency to 1404KHz (or 1400KHz) and measure output level. 5. Adjust output level to maximum point with TC01 (White Trimmer). 6. Repeat above 2. 5. steps 2 3 times until adusting to best output level. 7. Adjust AM Signal Generator & RT-961 AM Frequency to 999KHz (or 1000KHz) and
46、 measure output level. 8. Adjust level to maximum position with T03 (AM-IFT). (C) TUNED Level adjust AM Signal Generator Setting - Modulation : 30%- Audio Frequency : 400Hz- Radio Frequency : 999KHz (or 1000KHZ) - Output Level : 84dB RT-961 Setting - AM Frequency : 999KHz (or 1000KHz) 1. Turn AM Sig
47、nal Generator Modulation ON ( Make sure if Output level is 84dB ) 2. If TUNED indicator does not turn on at higher than 8086dB(Generator output), Adjust VR01 ( AM-ADJ ) up to the moment where TUNED indicator tunrs OFF & ON again 3. Confirm if TUNED turns OFF when decreasing the output level of AM Si
48、gnal Generator slowly from 84dB to 80dB. 4. Push RT-961 TUNE UP or DOWN button long at AM Signal Generator Output Level 84dB and start AUTO search. Confirm if search stops at AM Frequency 999KHz (or 1000KHz). 999KHz(or 1000KHz) search , Low Freq. - 999KHz(or 1000KHz) search 8 PCB Assembly Front PCB 016 E-1319A00 Main PCB 016 X-1320A01-04 9 PCB Assembly Tuner PCB 4002002300 Top Side ViewTuner PCB 4002002300 Bottom View 10 Wiring Diagram 11 Schematic Diagram - 1 12 Schematic Diagram - 3 022 T-1065N01 13 Schematic Diagram - 2 14
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