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SERVICE MANUAL

1. LCT 2624 berceau 2 VRo1 VRO For F05 Foza TES 5 milliammeter 2 2 2656 Fog on Bottom View 4 3 Adjustment of Tunner Section 4 3 1 FM Adjustment amp Alignment Note 1 Selector FM AUTO Connection 3 Output level of genescope After attenuator Sweep width 1 5 2cm 150kHz Frequency 9 5 11 5MHz GENESCOPE IN 9 AUDIO OSC 2 FM MUTING Switch Connect the output of genescope to TP through 100pF ceramic capacitor 4 Note In adjustment above there are two model num bers as model and B Regarding name of model and please refer to Note indicated on pa ge 1 SPEAKER TERMINAL Fig 4 6 d volt meter volt meter DETECTOR PROBE BLOCK 7 10 Q V O Q DIST METER 8080DB 9090DB 890DB 990DB 1 FM IF Adjustment amp Tracking See Fig 4 7 4 8 4 9 on Page 9 FEED SIGNAL MEASURE 4 5 SUBJECT FROM TO OUTPUT ADJUST ADJUST FOR CONDITION 1 IF coil Output 90dB TPO1 Terminal 105 Max IF Genescope FM AM 01 of F 1519 waveform nge Pack F 2549 Use F 1519 Detector y if Probe wd e T Output 50dB Same as TPO1 T01 Same as above Genescope above F 2549 F 2549
2. Minimum Fig 4 1 3 Balance Volume Center 4 Accessory Switch OFF 5 Dolby Selector Switch REC 1 Step 1 Turn on the Dolby REC CAL TONE Switch 2 Connect VTVM to the front TAPE I REC terminal 3 Adjust VR601 on the circuit board F 2655 to obtain 270mV on indication of VTVM 4 Adjust both L CH and VR04 R CH on the circuit board F 2655 so that indicator of power meter will be center of Dolby Fig 4 2 mark OVRo3 VR02 VR04 VRO1 4 1 3 Dolby FM Volume Adjustment See Fig 4 3 Note 1 Selector FM Auto 2 Dolby Selector Dolby FM 3 REC CAL TONE Switch OFF VR601 4 Master Volume Min FEED SIGNAL MEASURE ADJUST F 2655 SUBJECT aou I xo OUTPUT DIUST FOR L CH 98MHz FM REC VRO3 Output Bottom View Input 60dB Terminal Terminal F 2654 Level FM SSG 3000 TAPE I 270mV Pilot 19kHz L CH Fig 4 3 10 MOD VIVM i L CH 1kHz 25 MOD Front end Pack R CH 0 MOD 5 2654 R CH 98MHz Sameas VRO2 Same as ANT Input 60dB above Terminal F 2654 above FM SSG 1 Pilot 19kHz 10 MOD VTVM R CH 1kHz 25 MOD L CH 0 MOD
3. 14 CAPACITOR 2SC945 P K CERAMIC U MYLER 1 lt STYROL TANTALUM Is 1 5 Dr 12 t 1524730 or FUSE RATING 181588 Fon Fos Faos Standard 7034 2509 3A 250Y TOA 250 UL CSA 250 3A 250V 10 250 EU BS 634 7 254 7 634 7 F 2657 SPEAKER SYSTEM SPEAKER SELECTOR Saza 1 OFF 2 3 8 4 C 5 6 Ate BAS CURRENT 3084 SPEAKERS 1250041257 20 BOT CHANNEL ORMEN at 1 000192 21 f PLAY 2 L REC 2 1506 50 TAPE REC AUX fe Ss Ao OF E 3 pr avis par suites d am liorations ventuelles PHONO 48 2 2 5mV SOkQ tg OF PRE DUT PHONO 2 1 55 7 H ATS 5 OF natn N r tie 2 4 i OY PRE 0UT S nA 4 C EE 27 _ 2 2 2 s l MANIN PHONO 2 PHONO 1 2 Tene 220K 11 Soc Son nc 130 p 2 Pet EUR LT AX BSAB99 BN 4 La pr sentation et les sp cifications sont susceptibles d ter modifi es sans Anderungen die dem technischen Fortschritt dienen bleiben vorbehalten Design and specifications subject to change without notice for improve
4. 12 24 2217 258536 2SCl904 B V 25 733 0 151588 or 1524730 Dos ze AVIK jw fes 550 20K A SELECTOR SELECTOR TREBLE 2544 2623 G s F 2623 So c d RM 2623 Soie DIAL ILLUMINATOR DIAL POINTER STEREO INDICATUR TUNE 7 BROWN SIGNAL METER 65V ET 2 YELLOW 42V 78 26 2SCIO24 D E WHITE YELLOW 42V u 50 60 amp i Fog 125V 7A S PURPLE P 38V 1 Oe Ry d 25 1509 0 8 4081 3 28A777 Q R PURPLE 30 Fog 25 Fro 100 1200 TA ts 220 240V4A GREEN 09 702 23V GREEN 10 Fas 125V 7 T ta 074 E s SPEAKER SELECTOR Sos a 80 8 so o le MA 26 J eo 274 EM 5 A B 5 1 a e BAS CRRENT 20 59 ag SPEAKERS 952 9854 80 3 BOTH CHANNEL EN at 1 4 e 5 NEL DRIVEN at 20082 w 5 TRo3 08 t 2 25 945 28C945 Q P K
5. CAPACITOR s Q A CERAMIC 2 2 MYLER 1524730 or Fos 47K amp STYROL 181588 x 24 TANTALUM 815 Das or E 5 5 E Foi 02 Fos 04 05 5 Standard 74 1257 GA 250V 7 25 UL CSA 7A I28V 250 7 125 z 15 8 ser pis s F 2657 _ gt J IN tuelles ven 5 tes d am liorations es sans pr avis par sui 8080DB 9090DB 890DB 990DB Design and specifications subject to change without notice for improvements Anderungen die dem technischen Fortschritt dienen bleiben vorbehalten La pr sentation et les sp cifications sont susceptibles d ter modifi 2653 000 F 2544 0 1 200 02 2 ju Lo d 9686 56K Rog 36K Res y AOS k 33 y y 30 Slc T 23 3 ex 224507 8 Bix ET 2 690033 25 88 SET ci 8 S 9 ass 55 SF 5 liW ERT vx 3 3 IN 123 8 eK i 1 E QUT Roza 5 2 on E 447 PRE WT mE 42 PHONO 2 PHONO f AUX REC TAPE 1 PLAY 220K Ace C 151588 or wee 152
6. o t F 2655 Bolonce VR 4 F 2655 e SEE 8 as Dolby Circuit Ts 15 5458 es Balance VR 5 5 5 5 EDS F 2655 i z s 30 Meter s 01 Power Meter Dolby Meter 3 5 Doiby Level 29 9 amp Volume F 2655 Dolby 7 Meter Level Volume to Power F 2653 F 2655 gt So SELECTOR Sol Dolby NR SELECTOR F 2654 Dolby FM Leve Volume 1 PHONO DOLBY FM Sote t TEST TONE I OFF 2 ON 2 PHONO 2 2 PLAY Sog i 2 OFF 2 ON 3 FM 3 OFF Sok OFF 2 ON 4 AM 4 REC I 50 FM MUTING OFF 2 ON 5 AUX 5 REC 2 Sons MONO STEREO i STEREO 2 MONO 2 3 4 Rec 2 Dolby NR Selector TAPE TAPE 2 REC PLAY REC PLAY 299 F 2654 F 2654 8 SSeS T omy eae a Sos 2 21 Aux gS TEN F 2653 F 2653 l Bolance VR 4 5 Head L9 F 2655 AMP ek 3 o o 154 50i 29 1 2 t 8212 1 as gt 4 Dolby Circuit 2 8 E5458 es Bolonce VR Play Control REC Level Control REC Level Control 2655 Dolby FM Level Volume 42 VRoi Dolby Level 22 50 Volume 2655 F 2653 F 2655 Soi SELECTOR 50 Dolby NR SELECTOR PHONO I DOLBY FM 2 PHONO 2 2 PLAY 3 FM 3 OFF 4 AM 4 REC 5 AUX 5 REC 2 F 2655 Meter Power Meter Dolby Meter VRo3 Q Dolby Meter Levet Volume to Power F 2654 TEST TONE
7. 1010930 4301010 7726180 1010930 1010930 1171240 1060320 1131380 1015220 1065051 1105220 1005290 2430240 5416350 5516030 0400450 5416050 5408120 7036453 5288390 4300740 4300750 0420040 0400420 0400540 5066211 7136082 6146670 5517050 5058512 505811 Description Bonnet 8080DB 890DB Bonnet 9090DB 990DB Panel Sash 8080DB Ponel Sash 9090DB Panel Sash 890DB Panel Sash 990DB Push Knob 890DB 990DB Push knob 8080DB 9090DB Speakers Knob M 7 Type 8080DB 890DB Speakers Knob E 2 Type 9090DB 990DB Lever Switch Knob C 2 Type 9090DB 990DB S 10 Type Knob Volume Knob 6 Type Balance Volume Knob WO 8 Type N 6 Type Knob S 10 Type Knob 8080DB 890DB E 1 Type Knob 9090DB 990DB M 7 Type Knob 8080DB 890DB E 2 Type Knob 9090DB 990DB Push Botton Front Panel Ass y 8080DB Front Panel Ass y 890DB Front Panel 5 99008 Front Panel Ass y 9090DB Panel Window 8080DB 890DB Sansui Mark 9090DB 990DB Smoked Plate 8080DB Smoked Plate 9090DB Smoked Plate 890DB Smoked Plate 990DB Tuning Knob T 12 Type 8080DB 9090DB Tuning Knob T 13 Type 890DB 990DB Power Switch Speakers Switch Power Indicator LED Head Phone Jack Push Switch Masking Lever Switch 909008 99008 Bass Selector 9090DB 990DB Bass Volume 100 8 Power Meter Power Meter Circuit Board Midrange Volume 100k 2B Treble Volume 100k 1B Treble Selector 90
8. Connectors Pin Ass y Type 2 6 pins Stock No 2 Pins 2420450 3 Pins 2420460 a Sx Pins REO 2420650 da Type A 3 10 pins NOTE Since stock number of famale connectors type B with wires are not Type D 2 6 pins Type E 2 6 pins shown in each parts list of Complete circuit board please refer to the above parts list when ordering the connector 1 Type A 3 10 pins Type B 3 10pins Type C 3 10 pins 4 Pins 2420470 5 Pins 2420480 6 Pins 2420490 16 8080DB 9090DB EU ZI 72 890DB 990DB 6 OTHER PARTS 6 1 Top Side Voltage Selector Thermal Read Switch etinm t A x M 6 2 Bottom Side 8P Input Terminal 12P Input Terminal 17 TR701 TR703 704 TR702 Antenna Holder pot mm 9090DB 990DB Holder 1 Bar Antenna Antenna Terminal R708 R709 R710 R711 T703 R707 3 3 Parts List Top Side amp Bottom Side Parts Stock No Description C701 0605337 0 0334F 250V C702 0659802 0 0047uF 150V R701 0114335 3 3MQ SR R704 705 0104472 47kQ 1W CR R707 0103122 1L2kQ 15W C R T702 4200760 Bar Antenna T703 4290021 750 3000 Balun 703 1900020 Thermal Reed Switch 2300060 Power Fuse Holder CO701 702 2450060 AC Outlet 2200450 8P Input Terminal 2200490 12P Input
9. Fig 4 9 0 1 O e 5 Tos VRO4 L P Fo1 TPo2 e 1 TPo1 VRo3 4 1 On TPo4 VR02 00000000 O O000 2 VRO6 4 8080DB 9090DB 890DB 990DB 1774 5 PARTS LOCATION AND PARTS LIST Sea trom pars iss in ms Service Manual refer to the common parts list for capacitors amp resistors which was appended 5 1 F 2549 AM FM Tuner Circuit Board previously to each Service Manual Stock No 7521401 MODEL 8080DB 8090DB Stock No 7521391 MODEL 9090DB 990DB Conductor Side Parts List Parts No Stock No Description Position Parts No Stock No Description Position Parts No Stock No Description Position TRo1 0306113 35 738 D Dos 0310330 1 IN60 28 To 4235860 18 TRo 0306113 25 738 D 1A Du 1160 1524730 26 4235750 0306112 3 25 738 C D 18 0311180 151588 4235760 0 FM IF Coil 1C TRo4 0306112 3 2SC738 C D 28 D pe 1160 1524730 Diode 50 Tos 4235940 2B TRos 0305731 2 25 711 2C 0311180 151588 4220550 2 0305731 2 25 711 2 0311160 1524730 TRo 0300281 2 2SA628 D E Transistor 20 i 151588 Sa Ye TRos 0305731 2 2SC7 1 E F 10 Cas 0620181 180pF 10 0910330 Ceramic Filter n TRo 0300220 1 25 562 O Y 20 Cz 0620331 ul 1D CFo deed 2 TRio 11 0306390 1 25 1636 1 2 20 Cos
10. nge 2 Muting Coil Output 50dB Same as TP04 T04 Same as above Genescope above F 2549 F 2549 T 4 3 Discriminator Coil Output 50dB Same as 2 Max linearity Genescope above F 2549 T03 of S Curve F 2549 i inan 4 90MHz 90MHz ANT REC OUT 106 Max Output model Dial ANT Input 60dB Terminal Lor R CH F 1519 Calibration 400Hz 100 MOD 3000 amp P FM SSG Scope 106MHz 106MHz Same as Same as 4 Same as above Dial ANT Input 60dB above above F 1519 Calibration 400Hz 100 MOD FM SSG 5 90MHz 90MHz Same as Same as 101 102 Same as above RF Adj ANT Input 60dB above above 103 400Hz 100 MOD F 1519 FM SSG 106MHz 106MHz Same as Same as TCO1 Same as above RF Adj ANT Input 60dB above above TCO2 400Hz 100 MOD FM SSG F 1519 6 Signal Meter 98MHz Same as Signal VR02 4 7 on meter Volume ANT Input 100dB above Meter F 2549 400Hz 100 MOD SSG 1 7 Distortion 98MHz Same as RECOUT T02 Max Output ANT Input 60dB above I R CH Us Min Distortion TOT Slightly adjust 400Hz 100 MOD Dist meter TO1 FM SSG amp Scope F 2549 T 8 Tune Meter 98MHz Same as Tune VR01 Center on Volume ANT Input 60dB above meter F 2549 meter TUE 400Hz 100 MOD 4 FM SSG Abbreviations Equipment Distortion Meter AM FM Generator Oscilloscope Genescope AM Standard Signal Generator AM SSG Others FM Standard Signal Generator FM SSG Clockwise 45
11. 0620101 100r 50 P C 10 0300281 25 628 0 2 0620151 zl 5 LFot 0910360 Low Pass Filter 1 2 TRIS 0306091 25 13128 2B 0573688 0 68 35V T C ID VRo1 1035150 22k 1 B 1D TRI 0306390 1 25 1636 1 2 28 C53 54 0620511 510pF 2D VRo2 1035170 47k 1 B 28 Cor 0360120 555 28 Cs 0629005 ses SOY PE 1D VRo 1038070 4AQ volume 28 C 1 2 0360120 555 18 C 0669400 15 2 VRo 1034250 47kQ 10 0360120 555 1 IC Ca 0620361 sta SOV cC 2A VRos 1035210 220k 2D Cos 0360320 1196 1 20 0661150 2 VRos 1035110 4JkQ B 1 05 0360150 HAIISI 2 0661150 15 2 50 1110270 Slide Switch Doi 0311060 1N60 P 1C D loi 4900250 10 0990010 Ceromic Filter Do2 0311060 1N60 P 1C 0 Loz Inductor 10 2410570 P Pin Type D 0310330 1 1 60 18 4900220 28 2410580 3P Pin Ass y Type D 0310330 1 1 60 Diode 28 Los 4290011 2A 2410590 Pin Ass y Type D Dos 0310330 1 1 60 2B 105 2 Inductor Dos 0310330 1 1460 28 1 4900110 2 Do7 0310330 1 1N60 28 5 i 1 1 1 Stock No 7594211 MODEL 8080DB 890DB 5 2 F 2627 Illumination Circuit Board 7594301 MODEL 9090DB 990DB Conductor Side Parts List em Parts No Stock No Description Roi 0191180 18Q JAW fuse R Ploi o 0420040 7V 320MA Pilot Lamp 10 8080DB 9090DB EY 390DB 990DB 5 3 F 1519 Front end Pack stock No 751
12. 1 OFF 2 ON 2 1 OFF 2 ON TAPE 1 OFF 2 ON FM MUTING 1 OFF 2 ON MONO STEREO 1 STEREO 2 MONO 8080DB 9090DB 890DB 990DB 3 OPERATION OF DOLBY FM SYSTEM This Dolby Noise Reduction System Type B used in this unit is not only available for encording of the FM dolbyized signal but also useful for encording and de cording of other signals Therefore it is possible and ef fective to combine with other products such as a casset te deck without Dolby system Dolby FM System FM broadcasting system is originally able to produce a very high quality audio performance however FM ste reophonic broadcasting system incures a 20dB Signal Noise ratio decrease When Dolby B Type Noise Re duction system is used for a FM stereo Signal Noise ratio S N is conspicuously improved and this ratio is at about 10dB Fig 3 1 Ov 10 20 20 30 40 40 1 2 tOkHz Whole range output Frequency Response characteris tics against input level Fig 3 2 4 5 LEVEL 48 OUTPUT LEVEL 88 OUTPUT LEVEL d8 2 5 00 2 5 02 500 Hz Low level Frequency Response characteristics of encode and decode processors 4 ADJUSTMENTS 4 1 Dolby Circuit Adjustment Principles The S N of the FM becomes worse when the frequency is high and the level is low Because of this reason the middle and high rang
13. Ass y 6P Mini Pin Ass y Parts List Parts No Stock No 2411180 Description 9P Mini Pin Ass y Parts List Parts No Stock No Description 2411150 Parts List Parts No Stock No LDot 0319040 6P Mini Pin Ass y MODEL 808008 only Description GL 40RG8 LED M C E C Non Inflammable Resistor Mylar Capacitor Capacitor Electrolytic Capacitor Bi Polar Electrolytic Ceramic Capacitor Mi C Mica Capacitor O C Oil Capacitor P C Polystyrene Capacitor Tantalum Capacitor 14 4 8080DB 9090DB 7211772 890 990 8 5 16 F 2654 Push Switch Circuit Board No 7594271 MODEL 909008 99008 Conductor Side Parts List A c Parts Mo Stock No 000 0 Coroa 0620331 z WY mmm Sor 1131380 if if thf J L 2410570 Z A 5 17 F 2655 Dolby NR Circuit Board eck No 7660051 MODEL 909008 990D8 Conductor Side NS CSS 31978 lt 30211763 1 f F i Parts List Parts No Stock Description Position Parta Mo Stock No Description Position Parte Stock No Description TRot o2 0305951 2 25 945 Q P 0310970 1 60 i 1 02 1035190 100841 8 se TRei 0305951 2 250945 Q P ls 2 IN60 F os 1035170 00 77 0305951 2 25 945 2C 0310970 1N 0
14. OUTPUT LEVEL 1 000 2 TAPE 1 2 REC pin jacks 150mV 2 REC PLAY DIN socket 30mV PRE OUT Ss ASS 775mV CHANNEL SEPARATION at rated output 1 000Hz PHONO 2 better than 50dB TAPE 1 2 PLAY AUX better than 50dB HUM AND NOISE 1 2 better than 70dB TAPE 1 2 PLAY AUX better than 80dB Dolby Noise Reduction effect 10dB above 5kHz CONTROLS MODEL 8080DB 890DB BASS 222452 10dB 50Hz 54 1 5kHz AIRE BEE a Ro SA 10dB 10kHz LOUDNESS teret heres 8dB 50Hz 6dB 10kHz LOW FILTER 10dB 50Hz HIGH FILTER 10dB 10kHz AUDIO MUTING 2 20dB MODEL 9090DB 990DB BASS ROE 10dB 50Hz Tone selector turnover frequency NOSE EEE 150 300Hz MIDRANGE 5dB 1 5kHz TREBLE de uen reete 10dB 10kHz Tone selector turnover frequency Mon RC 1 5 3KHz 56 222225555 8 50Hz 6dB 10kHz LOW FILLTER 10dB 50Hz HIGH FILTER rry 10dB 10kHz AUDIO MUTING 20dB FM SECTION MODEL 8080DB 890DB 9090DB 990 DB TUNING RANGE 88 to 108MHz SENSITIVITY 9 8dBf 1 70 V DIN cioe 0 9uV 50dB QUIETING SENSITIVITY STEREO UE orn 36 3dBf 364V MONO IHF 147dBf 35V TOTAL HARMONIC DISTORTION STEREOS RSS ee
15. Terminal 2210310 Antenna Terminal 2230150 Ground Terminal 2290160 4P Speaker Terminal 2410091 Voltage Selector plug 2410830 Voltage Selector socket 3800010 Power Cord 3910490 Cord Clip power cord 5286450 Antenna Holder 1 5286480 Antenna Holder 2 3910510 Cord Clip antenna 8080DB 890DBOnly 25 1116 8 TR701 702 0305841 2SC1116 O 23747 R r TR703 704 or or 0300521 2SA747 O C703 704 0559518 12000 63 E C T701 4002540 Power Transformer Fo 5 4A 125 220 240 0432500 125V 100 120 9090DB 990DBOnly emo 250424 R TR7o1 702 or or 0308471 250424 O 0303300 2SB554 R TR703 704 or or 0303301 2SB554 O 0308470 2SD424 95104 TR705 706 0308471 250424 0303300 258554 TR707 708 or or 0303301 258554 O C703 704 0559844 120004F 80V T701 4002530 Power Transformer F01 10 4045 7A 125V AC 220 240 0434060 10A 250V 100 120 Parts List Exploded View Position 1 2 11 12 13 49 50 51 52 Stock No 5726923 5726933 5996104 5996098 5996104 5996093 5326560 5326550 5318380 5318400 7106130 5318410 5318440 5318431 5318340 5318410 5318390 5318380 5318400 5326570 7007450 7007430 7007420 7007440 5309840 5336500 5446330 5446310 5446340 5446320 5318420 5318450 1131190 1104360 0319040 2430190 1131270 5047470 1171220
16. 031160 1524730 0311180 151588 60 5 Dog o 9311160 1524730 TT l 0311180 151588 T 5 08 0340120 VD1212 Voristor 38 34 0311160 1524730 B y 097 08 0311180 151588 Cli TR Dov 9311160 1524730 4 10311180 151588 5 0311160 1524730 Diod 1 151588 01996 28 24 0311160 1524730 2134 0311180 151588 RIBEZA 0311160 1524730 2 01519 10311180 151588 28 2 2001 02 0316070 1 248 Zener Diode 18 1A R35 34 0191181 bad 3B 3A 1 0191479 ATO AW fee 1B 1A Ra7 38 0210392 39 amp Q IW M R 1B A i R3 40 0192100 100 38 3A Rai 42 0192151 1500 38 3 R43 44 0192151 15002 W Fuse R 28 24 0192479 470 38 3A 0192479 470 38 3A i 02 1035350 ATO B 1B 1A 04 1035310 2410930 Pin Ass y Type E 2420520 6 Connector Ass y Type MODEL 8080DB 890DB Only 11 12 0308431 2 250381 M L TRES 28 1A ansistor TRis 14 0303260 1 258536 N 28 1 MODEL 9090D8 990D8 Only TRu i 0308531 2 290381 2 28 14 n TRis14 0303371 2 258536 2 M SO 28 1A 5 5 Stock No 7561511 MODEL 8080DB 890DB Conductor Side A i B Parts List Parts No Stock No Description Position Parts Stock No Description Position TRoi o2 0306070 2 25 1313 Transistor 2C 2A VRoi 1010930 1 1000 i Vai ic m VRo
17. 0631 Conductor Side Parts No Stock No Description Position Coi 0669342 5 6pF 0657102 1000pF B Cos 0657223 0 022uF 50V B 0659015 2200pF B Cos 0669345 10 8 Cos 0679023 0 39 500 Gimmick B Capacitor Co 0669345 10 Cos 0669210 10pF A 0657102 1000pF A Cio 0661220 22pF 0669202 2 2pF A 0657223 0 022uF 50 C C 0660121 120pF es A Cra 0657223 002208 Cie 0660331 3309F A 0659015 2200pF 8 Cis 0657223 0 0224F A Cis 0669375 15pF A 0657102 1000pF A Ca 0669209 8 2pF A 0657223 022881 0621230 23 50V CC 2 0669221 0657223 0 0224F Roi 0106105 IMQ CR ELR 8 Ro2 0113104 10050 8 1 0113104 4W SR 8 Ros 0106101 1000 3SK41 1 K 0106680 680 35 6113 Ros 0106682 68kQ CR ELR A Ros 0106123 12kQ A Parts List 0106392 3 9kQ A Roe 0113121 12001 1 46 8 Parts No Stock No Description Position Parts No Stock No Description Position Ro 0113271 2700 4 VR Rio 0106392 3 90 TRoi 0305800 1 25 1047 A 8 Los 4290110 Choke Coil A Ru 0106121 1200 TRo2 0305790 1 25 930 D 105 4235910 Coil 2 0106682 880 JAW CR A FETo 0370131 2 38K41 K L FET 1 4220430 OSC Coil A 0106222 220 Ru 0106182 Lot 4200640 Antenna Coil 8 VCo1 04 Ris 0113680 680 SR B 12201 F i 102 4210330 RF Coil 1 B cas 240120 PM AM Vgrigble C
18. 2 la rt UY eres FM Stereo Generator Stereo SG Counterclockwise Oscilloscope Scope Antenna e voe x eec las Audio Oscillator Audio Osc Modulation 2 MPX Adjustment See Fig 4 8 4 9 on page 9 8080DB 9090DB 890DB 990DB STEP SUBJECT FEED SIGNAL ADJUST FOR FEM 12585 J CONDITION 1 PLL 98MHz ANT Light Adjust the VR VCO Adj ANT Input Terminal Indicator within center 60dB FM SSG 3000 of lighting level Pilot 19kHz 10 MOD L CH 1kHz 45 MOD R CH 0 MOD STEREO SG PLL Make short 76kHz VCO Adj i between 200Hz In case of using Freq of Counter F 2549 and chassis 2 Separation 98MHz ANT Min ANT Input 6048 Terminal FM 55 3000 35dB Pilot 19kHz 10 MOD L CH 0 MOD R CH 1kHz 45 MOD STEREO SC 252 E 3 Distortion Same as above Same as If less than 0 3 above Min adjust 105 slightly Distortion 4 Separation 98MHz ANT Input Same as Min 60dB FM SSG above Output Pilot 19kHz 30dB 10 MOD L CH 1kHz i 5 Muting level amp 98MHz ANT Input Indicator level 45 MOD R CH 0 MOD STEREO SG 23dB FM SSG R CH 0 MOD STEREO SG 1 i Same as i above Pilot 19kHz 10 M 1 1kHz 45 MOD Muting level
19. 2 1010930 1 1000 18 ICo1 02 0360190 BA312 2c MODEL 9090DB 990DB Only Coi o2 0573109 1 0 AV e 2C Soi 1171240 Lever Switch 1 C27 28 0573229 2 2 T 2B 02 1171220 Lever Switch 1 2 12 8080DB 9090DB 7 1774 S90DB 990DB Stock No 7610111 MODEL 8080DB 890DB 5 7 F2617 Mic Circuit Board stock No 7610121 MODEL 909008 99008 Conductor Side Parts List RE 25 REE Parts No Stock No Description Position FM vy TRo 0306070 2 25 1313 F G H Transistor SSANSUt F 2617 ROS RI1 ICor 0360190 2 IC Co 0573687 0 068uF 25V T C VRo1 1005290 1 20k 1 Volume ALB Joi 2430240 Mic Jack MODEL 909008 99008 Only Cos 0620561 560pF 50V P C B 5 5 8 2619 Power Supply Circuit Board of RF Section 7501921 MODEL 909098 99008 Conductor Side Parts List Parts No Stock No Description Position TRoi 0308391 3 250313 0 TRo2 0305930 1 25 1211 D Transistor A TRo3 0306131 2 25 1364 6 7 B Do 0310340 1001 Diode B 2001 0315760 EQA01 06R Zener Diode 8 Ror 0133330 330 8 0133330 E VRoi 1035130 10kQ B Volume 8 Stock No 7501901 MODEL 8080DB 890DB 5 9 F 2657 Power Relay Circuit Board stock 7501971 MODEL 909008 9900 Conductor Side Parts List Parts No Stock No Description Position TRot 0305953 25 945 28 TR2 0305951 3 25 945 Q P T
20. 23dB Indicator lighting level 23dB 4 3 2 AM IF Adjustment amp Tracking See Fig 4 8 4 9 on page 9 Note 1 AM 2 Confirm start point of dial pinter before alignment _ FEED SIGNAL MEASURE STEP SUBJECT FROM TO OUTPUT ADJUST ADJUST FOR CONDITION 1 IF Coil Genescope 5 6 CF04 Max Output f Output 70dB FM AM F 2549 F 2549 1 Pack F 1519 2 600kHz 600kHz REC 05 Same as above Dial ANT Input 6048 Terminal Lor R CH F 2549 Calibration 400Hz MOD 30 VTVM amp AM SSG Scope 1400kHz 1400kHz Same as Same as 5 Same as above Input 60dB above above FM AM Calibration 400Hz MOD 30 Pack 55 1519 3 600kHz 600kHz Same as Same as Bar Same as above RF Adj ANT Input 50dB above above Antenna 400Hz MOD 30 T702 AM SSG 1400kHz 1400kHz Same as Sameas TC06 Same as above RF Adj ANT Input 50dB above above i FM AM 400Hz MOD 30 Pack SSG F159 4 Signal 1000kHz Same as Signal VRO6 43 meter Meter ANT Input 80dB above Meter F 2549 I i Fig 4 7 Fig 4 8 Que OX S f Gs TCo3 Gp 101 Q F 1519 Q
21. 4730 B PLAY n 1 Rna 220K 7 F 2824 n 29AB99 B V 28038 M L 4 Taal Me xl i 2SCI400 E U 8s 256945 Q 22 5 d 2SC1116 0 5 Pog 42K 3 els i r NOS amp 9 i H 1 S j i i uum PU T 3 ifi SIX r g 1 E 88 2SA747 0 Y 1 TV 300 4 F 2627 i 25C984 B m 181588 or 1524730 7 2SB536 M L 2 F 26171 2 sie G H 2561904 2S 733 P 0 D E EQAOI 24R Rv 20 40 8080DB 9090DB 890DB 990DB s SELECTOR F 2653 Soa y 1 PHON2 1 2 PHONO 2 3 w AUTO 4 5 AUX SELECTOR F 2544 Sera no 5 TREBLE 2 DEFEET 3 3 SELECTOR F 2544 bcd 1 300Hz BASS 2 DEFEET 3 50Hz AUDIO MUTING 2623 Soia b OFF 2 ON LOW FILTER 2623 Spica OFF 2 ON HIGH FILTER 2623 Sole OFF 2 ON DIAL ILLUMINATER DIAL POINTER STEREO INDICATOR TUNE METER SIGNAL METER POWER SWITCH S10 AC
22. 655 s Meter 5 22 Power Meter Doiby Meter Dolby Level 2 2 s vRos T g g amp Volume OY F 2655 Dolby 7 Meter Level Volume to Power AMP F 2653 F 2655 Soi SELECTOR Sot hs SELECTOR 522654 weston M Level V 1 PHONO i DOLBY FM 016 1 OFF 2 M vel ote 2 PHONO 2 2 PLAY Soi 2 OFF 2 ON 3 FM 3 OFF 508 TAPE I OFF 2 ON 4 AM 4 REC Soig FM MUTING 1 OFF 2 ON 5 AUX 5 REC 2 Soins MONO STEREO 1 STEREO 2 MONO 2 3 2 Play Dolby NR Selctor TAPE TAPE 2 REC PLAY Balance VR Dolby Circuit REC CAL Level Volume Balance VR F 2655 Meter AMP VRo5 Control Power Meter Ooiby Meter Dolby Level Volume Play Cal Controt REC Level Control F 2653 F 2655 im Sa Somer TEST TONE LOFF 2 ON 1 PHONO I olet 3 Dolby EM Level volume 2 PHONO 2 2 PLAY Sog 2 LOFF 2 ON 3 FM 3 OFF Solk p 2 ON 4 4 REC So FM MUTING OFF 2 ON 5 AUX 5 REC 2 Sons WONO STEREO I STEREO 2 MONO 8080DB 9090DB 890DB 990DB 2 3 3 Rec 1 Dolby NR Selector 1 2 REC PLAY REC PLAY F 2654 Soli Solo Soin Sola 2 2 2 2 2 5 6 6 ry 9
23. 8 50 60 VAS 8 0 033 gu Sm ge 9 BROWN 5 Fror 100 120V 104 3 220 240 S F 2695 Fag 250v 34 YELLOW 45V WHITE 034 YELLOW Rog 709 Me Cor Doe lopc 2 JODC2 R E 2 2000 02 EQAOI 24R Ra 45V PURPLE n 250V 0A 44 GRAY 5 PURPLE Vp 007 Ce 2 07 1 TRoz Se 2 t 125 1509 0 44 GREEN 25001703 Np c 50 3 33 i 237 GREEN 0 7 708 250V IgA 25 1024 0 gi p 2SCI2 i C D 702 4 hos 250V 104 m F 2656 el AN Foy Section 9090DB 990DB 7 3 Aud Das INGOP 47K 8 x S o ie e SZ 4 zs 154 3 2SC945 Q P K Rag 41K j 63 Rag 47 215515 STK 3 3 T 72K w 6 72007
24. 90DB 990DB Master amp Balance Volume Push Switch PLAY CAL Control Volume 50kB 2 x 2 REC LEVEL Control 500508 x 4 Dolby NR Switch MIC Volume 20k 2 MIC Jack Holder Dial Pointer Teflon Sheet Dial Pointer Lamp Dial Pointer Dial Glass Tuning Unit Meter Holder Signal Meter Tune Meter Meter Lamp FM Stereo Indicator Indicator Lamp lllumination Box Tension Unit Dial pulley D 44 Leg Bottom Plate 8080DB 9090DB Bottom Plate 890DB 990DB 8080DB 9090DB 890DB 990DB 909008 90DB 9008 2 2 6 3 Exploded View DOLBY NR SELECTER F 655 Soi I FM DOLBY TEST TONE 2654 2 PLAY 2654 a 3 METER LAMP UN Q 5 RECa 2654 7 LOUDNESS F 28654 gt e 220750 y D F 2549 ea CFor Ro vege Rep Crus Tag 720 IN60OP SFE 10 7MA 2SC738P 07 25 7380 10 7 25 738 Apc555H Jipc555H 20 5 e fg a 100 Lag 6 Bri s 5 E 2 5 Rag 70 is a 22328 S 7 es 1 E E 2SC7H E F 2SC628 D E Elk R
25. EDE T 2191588 or 152473 818 3 725 oF og Mee A 4220550 014 Dua EI 3 55 4235940 4 2SC738 C D S E ud 5 J 5 aly u 151588 or 152473 a ES x tL 0 i un i Eq 7 L 2122 ned 24 TR Rez 18K Lfor 177 2SCI636 1 2 Tum 1 ix BL I2AK ZIL Si 18 I d3 TRgg i P ST T 25 562 0 n U Q CLE et 3T ix mn E Te n p 2SC733Y or 2SCI636 2 Oxa D E 25 735 25 1636 2 1 00 YELLOW Tf o lt H ORANGE PTor a 2 5 5570 re i BROWN gon et 9 lt our 7 2SCIO47 A B 5 m a amp o 2 o 9 a 7009 o 2 o 9 A erom m o lt 81 EU MODEL ONLY aw Cw 0 033 g2 gt flo eo 46 BROWN 770 o 1 1 1 5570 00 38641 K I 388411 06 1 3 8 lt IE ch 27 d Q 25 930 0 eSCI2M C D i o _ eSCI364 S CAPACITOR CERAMIC MYLER lt UL amp CSA MODEL ONLY M m STYROL TANTALUM 19 sentation et les sp cifications sont susceptibles d ter modifi es sans pr avis par suites d am liorations ventuelles Anderungen die dem technischen Fortschritt dienen bleiben vorb
26. NSUI ELECTRIC CO LTD 14 1 Izumi 2 Chome Suginami ku TOKYO 168 JAPAN TELEPHONE 03 323 1111 TELEX 232 2076 Printed in Japan D60720M
27. P VRos 1065051 8 l TRas 0305951 2 25 945 0 28 9 sors 294 VRoe 101522 471 8 Volume 0360340 NES4S8 1 14 24 Sua 1 28 nn 0311060 1N40 o 105220 R Switch 001 02 0310403 1N34A 14 2A 2412 SWINE Dos IN6OP Diode 0573109 35 C 0311060 IN 0 P I L 900260 Inductor 3 9 3 8080DB 9090DB 890DB 990DB ELLE Stock No 7594201 MODEL 8080DB 890DB 5 18 F 2623 Filter Circuit Board stock 7594291 MODEL 909008 59008 Conductor Side Parts List pum m 6 Parts No Stock No Description 1131170 Push Switch 2410590 4P Pin Ass y Type D 4 Stock No 7594841 MODEL 808008 5 19 F 2693 Push Switch Circuit Board 2 No 7594831 MODEL 909006 99008 Conductor Side Parts List Parts No Stock No Description 1060320 1 25000 B 2 Volume 95 3 2 lt 98 Os 7594861 5 20 2694 Dolby Volume Circuit Board ui 991851 MODEL SODE OD Conductor Side Parts List Parts No Stock No Description VRos 1065060 5000 2 e VRos 1015220 500601 2 me A Stock No 7594191 MODEL 8080DB 890DB 5 21 F 2690 DIN Terminal Circuit Board stock No 7594281 MODEL Conductor Side Parts List m MID 5 Parts No Stock No Description Jo 2090030 5P Connector Socket 5 22 Figures Connectors amp Pin Ass y
28. PUT MODEL 8080DB 890DB Min RMS both channels driven from 20 to 20 000Hz with no more than 0 126 total harmonic distortion 85 watts per channel into 8 ohms Min RMS both channels driven at 1 000Hz with no more than 0 1 total harmonic distortion 95 watts per channel into 8 ohms MODEL 9090DB 990DB Min RMS both channels driven from 20 to 20 000Hz with no more than 0 1 total harmonic distortion 125 watts per channel into 8 ohms Min RMS both channels driven at 1 000Hz with no more than 0 1 total harmonic distortion 135 watts per channel into 8 ohms MODEL 8080DB 890DB 9090DB 990DB LOAD IMPEDANCE 8 ohms POWER BANDWIDTH 20 to 20 000Hz at or below rated min RMS power output and total harmonic distortion TOTAL HARMONIC DISTORTION less than 0 126 at below rated min RMS power output INTERMODULATION DISTORTION 70Hz 7kHz 4 1 SMPTE method PPS less than 0 126 FREQUENCY RESPONSE at 1 watt DNO ENDE RAS 10 to 30 000Hz 1dB RIAA CURVE DEVIATION PHONO 0 3dB 0 3dB 30Hz to 15kHz DAMPING approximately 30 at 8 ohm load INPUT SENSITIVITY AND IMPEDANCE 1 kHz for rated power Output PHONO 1 2 i Re 2 5mV 50 kilohms Max input capability 180mV at 1kHz less than 0 2 total harmonic distortion isses dress retos Coh 4mV 10 kilohms TAPE 1 2 PLAY AUX 150mV 50 kilohms hn 775mV 100 kilohms
29. SERVICE MANUAL AM FM STEREO RECEIVER SANSUI 8080DB 9090DB 89008 99006 n e 1 MI 2 t 7 4 4 1N SANSUI ELECTRIC CO LTD 8080DB 9090DB E LITE 390DB 990DB This service manual is designed for service engineers to repair adjust maintain and order the replacement parts of the 8080DB 9090DB 890DB 990DB correctly When ordering the parts use the stock number and parts name speci fically referring to the Parts Location and Parts Lists For general usage and maintenance of the unit please refer to the Operating Instructions attached with the unit TABLE OF CONTENTS Section Title 1 SPECIFICATIONS 2 BLOCK DIAGRAM 2 1 Audio Section 2 2 Tuner Section 2 3 Dolby Mode Section 3 OPERATION OF DOLBY FM SYSTEM 4 ADJUSTMENTS 4 1 Dolby Circuit Adjustment 4 2 Adjustment of Audio Section 4 3 Adjustment of Tuner Section 5 PARTS LOCATION AND PARTS LIST 5 1 F 2549 AM FM Tuner Circuit Board 5 2 F 2627 Illumination Circuit Board 5 3 F 1519 Front end 5 4 F 2653 Equalizer Circuit Board 5 5 F 20624 Driver Circuit Board 5 6 F 2544 Tone Control Circuit Board 5 7 F 2617 Mic AMP Circuit Board 5 8 F 2619 Power Supply Circuit Board of S
30. Tunning Flywheel Top View 4 2 Adjustment of Audio Section 4 2 1 Power Meter Adjustment See Fig 4 4 Note 1 Input 2 Speaker load 80 3 Input Signal Sine Wave 1kHz 4 Master Volume Maximum 5 For adjustment run the unit for more than 4 minutes after the power s switched ON MEASURE LEVEL STEP OUTPUT OUTPUT ADJUST ADJUST FOR F 2657 L CH Speaker 20V 50W VRO1 Meter Posi Terminal L CH F 2657 tion 50W AC Volt Meter 2 vRo2 R CH Speaker Same as VRO2 ms Ro Terminal R CH above F 2657 CE AC Volt Meter Bottom View 4 2 2 Driver Circuit Board Adjustment See Fig 4 5 4 6 page 8 Note 1 Master Volume Minimum 2 Before adjustment run the unit for more than 4 minutes then check and readjust necessary STEP SUBJECT EQUIPMENT MEASURE ADJUST ADJUST FOR CONDITION OUTPUT 1 DC OV DC volt Meter Speaker VR01 OV 10mV Step down meter range L CH Terminal F 2624 accordingly L CH Change leads polarity if meter swings backward 2 DC 0V Same as above Speaker VRO2 Same as above Same as above R CH Terminal F 2624 R 3 Bias DC Milliammeter F04 VRO3 30MA 1mA o Step down meter range Current F 2656 F 2624 accordingly L CH 4 Bias Same as above F05 Same as above Same as above Current F 2656 F 2624 R CH
31. allized Film Resistor Fusing Resistor LH PURPLL HE write REGNO basico n Parts List Stock No 7501911 MODEL 890DB Stock No 7501981 MODEL 990DB Parts No Stock No Description Position 0306171 2 25 1509 Q R 180 1 25438 D E 2A 0300591 2 254777 Q R TR e 1 288560 D E Tromistor Yi 0306351 2 25 1024 0 0308551 2 250315 10 D E TRoa 0305930 1 25 1211 C D Doi 0310800 100 2 38 Do2 0310801 10 28 38 Do3 0311310 55 5 Diode 28 Do 0311320 55 58 2B ZDoi 0315970 EQAO I3R Zener Diode Coi 0655103 10000 500 38 Cos 0549302 pus 3A Cos 0549301 azo 80 ER 3A Co7 08 0655103 2A 1A Cw 0655103 1000056 500 C C 18 Rot 0135560 560 1A R s 20 0135338 0 3302 5W 18 1 R21 22 0135338 0 330 R27 28 0103479 470 baw CR 18 1A Roo 31 0192109 R32 0192109 100 2 ad 3B 0 02 4290210 Filter 1 2 Fo3 0432260 250V Fuse 3A 2410730 amp P Pin Ass y Type A 2410950 6P Pin Ass y Type E 2420510 4 Connector Ass y MODEL 8080DB 890DB Only Foi o2 0432500 7A 125V Fuse F04 05 0432500 125 Q A Fuse MODEL 9090DB 990DB Only R23 24 0135338 0 330 BW 18 1 R25 26 0135338 0 330 18 1A For 02 0431320 250V AC Fuse Fo4 05 0431320 10A 250V Q A Fuse Parts List Parts No Stock No 2411030 2411150 Description amp P Mini Pin
32. apacitor Los 4210220 RF Coil 2 A TCos 1230090 FM OSC Trimmer A 2260010 Test Pin 5 4 F 2653 E lize Ci cuit B d Stock No 7550971 MODEL 8080DB 890DB qualizer Circuit stock 7551001 MODEL 9090DB 990DB Conductor Side Parts List Es P Parts No Stock No Description Position 1 01 02 0360190 12 0311160 1524730 Des 151588 2 04 0573339 3 3uF 35 28 18 1 C13 14 0625472 2700611 28 18 Cis 16 0625102 1000pF 50V P C 28 18 Ci7 18 0620361 360 pF 28 18 14 0231564 560501 28 18 Ri7 18 0231563 Hw 28 18 Lot 02 4900090 Inductor 2 1 50 1104350 Rotaly Switch 2410570 Pin Ass y Type D 2410590 Pin Ass y Type D 2410600 Pin Ass y Type D 3 29 33 31 21 20 OH 2 OQ 23 2233232 30 11 A 8080DB 9090DB 890DB 990DB I 1 1 Stock No 7571431 MODEL 8080DB 890DB 5 5 F 20624 Driver Circuit Board Stock No 7571461 MODEL 9090DB 990DB Conductor Side Parts List F F 6 2 7 1 Parts No Stock Description Position SANSUI R TRoi 0306290 1 25 1400 E U 18 v VRO2 m 5 3 VRO4 2 5 VROS TRos 0306290 1 25 1400 U 1B TRas 06 0300791 2 2SA899 B V 1 TRo7 08 0306401 2 25 1904 B V Tronsistor 10 0305871 2 25 984 B C 28 2 NEL TRis 16 0305951 2 25 945 28 2 RO TRi7 18 0300510 1 25 733 P Q 2B 2A 1 Dorop
33. d vos less than 0 326 less than 0 2 SIGNAL TO NOISE RATIO mono E REEN better than 70dB SELECTIVITY key xn better than 85dB CAPTURE RATIO less than 1 5dB AM SUPPRESSION better than 55dB IMAGE RESPONSE RATIO IHF better than 70dB 98MHz IF RESPONSE RATIO IHF better than 95dB 98MHz SPURIOUS RESPONSE RATIO IHF ena equ ewe pp DNA d a better than 85dB 98 2 SPURIOUS RADIATION less than 34dB STEREO SEPARATION better than 40dB 1 kHz FREQUENCY RESPONSE 30 to 15 000Hz 52048 ANTENNA INPUT IMPEDANCE 75Q unbalanced 300Q balance AM SECTION TUNING RANGE 535 to 1 605kHz SENSITIVITY Bar antenna 50dB m 1 000kHz SELECTIVITY better than 50dB 1 000kHz IMAGE RESPONSE RATIO better than 30dB 1 000kHz IF RESPONSE RATIO IHF better than 30dB 1 000kHz OTHERS MODEL 808008 890DB POWER REQUIREMENTS POWER VOLTAGE 100 120 220 240V 50 60Hz 120V Usable 110 130V 60Hz for U S A amp Canada only POWER CONSUMPTION Maximum consumption 420 watts Rated consumption 265 watts 350VA DEMENSIONS 540mm 21 5 16 W 182mm 7 3 16 397mm 15 11 16 D WEIGHT asus ssa 20 7kg 45 6 158 net 23 1kg 50 9 16 packed MODEL 9090DB 990DB POWER REQUIREMENTS POWER 100 120 220 240V 50 60H
34. e of the low level signal is expand ed by a FM station Then the signal will be compressed proportionally along the expanded level by a receiving side See Fig 1 2 This unit employs a IC NE545B for a main Dolby circuit The Operating diagram is shown in the Fig 3 3 Complementary items 1 When Dolby FM system is being used the de em phasis of FM out is 25 45 2 The input level of Dolby FM is at 50 modulation and 37 5kHz 3 This unit has an own 400Hz Oscillator for Dolby Tone in order to adjust itself to the Dolby level Fig 3 3 Dolby IC NE545B Additiongl action Gain 098 PB REC Head LINE OUT 4 1 1 Input Level Adjustment of Dolby IC NE545B See Fig 4 2 Note 1 Speaker Selector 4 Selector AUX 7 Dolby Selector Switch REC 1 2 Master Volume Minimam 5 Accessory Switch OFF 3 Balance Volume Center 6 REC Level Volume MAX FEED SIGNAL STEP SUBJECT MEASURE OUTPUT ADJUST ADJUST FOR FROM TO 1 L CH 400Hz 80mV AUX REC Terminal VROT Output 270mV Audio OSC Terminal TAPE I VTVM 2655 T E 2 R CH Same as above AUX REC Terminal VRO2 Same as above i TAPE VTVM F 2655 Terminal 8080DB 9090DB 890DB 990DB 4 1 2 Calibration Tone Volume amp Dolby Meter Volume Adjustment See Fig 4 1 4 2 Note 1 Speaker Selector A 1 2 Master Volume
35. ection 25 eA 5 9 F 2657 Power Relay Circuit Board F 2656 Power Supply Circuit Board 5 11 F 2684 Connector Circuit Board C F 2682 Connector Circuit Board A Secsion Title 5 13 F 2683 Connector Circnit Board B 14 5 14 F 2692 Connector Circuit Board 14 5 15 F 2695 LED Ass y Circuit Board 14 5 16 F 2654 Push Switch Circuit Board 15 5 17 F 2655 Dolby NR Circuit Board 15 5 18 2623 Filter Circuit Board 16 5 19 F 2693 Push Switch Circuit Board 16 5 20 F 2694 Dolby Volume Circuit Board 16 5 21 F 2690 DIN Terminal Circuit Board 16 5522 izurfffeee E nN 16 6 OTHER PARTS 17 6271 Side courier 17 6 2 Bottom Side 17 6 3 Exploded View 18 7 SCHEMATIC DIAGRAM 19 7 1 Tuner Section 8080DB 9090BD 89008 99008 19 7 2 Audio Section 8080DB 890DB 20 7 3 Audio Section 9090DB 990DB 21 8 THREADING DIALCORD 22 8 1 Threading of Dial Cord 22 8 2 Attachment of Dial Pointer 22 9 PACKING back cover 10 ACCESSORY PARTSLIST back cover 8080DB 9090DB 890DB 990DB Sansui 1 SPECIFICATIONS AUDIO SECTION POWER OUT
36. ector Relay DC Voltage 2 5V DC OFF OFF Ay Speakers SW XDC voltage ON 1 z SPEAKER R CH 3 Meter Level VR Dolby Tone L CH ERA R CH Head Phone Power Power Qut put Jack Meter 2 2 Tuner Section FM TUNER ac Ceramic EM RE E filter EM TUNE METER F 71519 M ANT FM FRONT 5 MPX PLL JC END PACK Fs Separation YR AM VC 007 amp e 2 Muting Coil S En S 8 TECH ER lk l 2 25 lt MUTING Stereo Multi Path E CIRCUIT Indicator Circuit Noise Cancelter S Circuit 1 P AM OSC Coit 7 Me eter Selector N C rie Low Fass E Signal Meter FM I 7 MutingSW 8 EM AM Qut B ANN Muting RCH Signal Meter VR F Output AM TUNER TUNER CIRCUIT 2549 8080DB 9090DB 890DB 990DB EXZITT 2 3 Dolby Mode Section 2 3 1 Dolby FM Dolby NR Selector TAPE TAPE 2 REC PLAY REC PLAY 1 er LR 4 I aux F 2653 L CH i F 2653 I F 2655 Bolonce VR Head 5 lec Ts AMP fo 501 y 90 21 1 d PHONO 2 O i 1 2655 1 as 400Hz as T2 Dolby Circuit oF osc E 5458 Boiance VR 2 2 182 5 F 2
37. ehalten Design and specifications subject to change without notice for improvements La pr 90DB 990DB i OGR UR 25742 258564 9 294562 gce 2501904 2 ES tQ 24R JODC2R 55 5 55 58 E ad 100 8 25694509 1 we 06 7 zz ie 760 602 603 25694509 DOLBY NR SELECTER 2655 1 FM DOLBY TEST M 2 PLAY 2 s 3 OFF TAPE 1 4 RECI FM MUTING 5 MONO STEREO LOUDNESS F 2549 een NX OD MEE Ros Ctog Rog dor 202 Cas 5 10 7 2 738 2567380 SFJ IO 7MA 25 738 555 555 JIpc 555H K 2 Jor Ry 4235860 100 7 220 8 3 700 Ae 50 4 sr 5 5 2384 41 95 Hm SOT Qh 4 1 p iuc 7 8 C984 B C gt Seer Bs eee 1 E 3
38. ments De Ou m C GT mS R PNE EN 280424 0 9 BY mcs 3 Y a i gt i Th 1 EO MARNE i 4 Fraser ees amp 258554 0 8 l E ELA etae 2617 i nds Mento su a DOIA 27 DOE qx uec y 2501313 P i Uli 151586 g 1524730 25 1904 2SAT33 P Q 2 27 rn s epe sc x rela 225 0 mor A C RI 4 Tdi i gt SM ahs ma RR 0260 2 2002 02 MORE ME S DEM Q OI 24R oo pact SELECTOR F 2653 TONE SELECTOR F 29544 Seno TREBLE 3KHz SELECTOR F 2544 Soza scd 300 BASS DEFEET 150Hz AUDIO MUTING F 2623 Som OFF 2 ON LOW FILTER F 2623 Sara 0 2 ON HIGH FILTER F 2623 OFF 2 ON 8080DB 9090DB 890DB 990DB 8 THREADING OF DIAL CORD 8 9 535 1 1f a dial cord is cut off or slips replace it by following procedures As these units use 0 6mm cord please replace it with the same type certainly length of dial cord is approximately 155cm 63 inch 8 1 Threading of Dial Cord Thread the dial c
39. ord in numerical order from D to 0 as Fig 8 1 1 Close the variable capacitor completely Max capa citance i 2 Tie dial cord to the screw S1 3 Thread cord in the direction of arrow from to 9 4 After tie the cord to the screw S2 of the dial pulley 8 2 Attachment of Dial Pointer 1 Close the variable capacitor completely 2 Set the dial pointer to the 0 position on dial scale Fig 8 2 Confirm that the dial pointer runs smoothly on the dial scale by turning the tuning shaft Stock No Description 6036051 Dial Cord 0 6mm 6146670 D44 Type Puliey a A E asTO 22 DRAN AA 9 PACKING LIST Parts No Wn Stock No 9116271 9027940 9027930 9009260 9009380 9009370 5996080 Description Vinyl Cover Poryetylene Sheet Stylofoam Packing Upper Stylofoam Packing Lower Carton Case 8080DB Carton Case 9090DB Carton Case 890DB Carton Case 990DB Curl Stopper 10 ACCESSORY PARTS LIST Parts No Stock No Description 9202380 9202390 9209740 9209730 9237520 9237530 9237420 9237410 Operating Instructions B080DB Operoting Instructions 9090DB Operating Instruction 890DB Operating Instruction 890DB Schematic Diagram 89008 Schematic Diagram 99008 Schematic Diagram 808008 Schemotic Diagram 9090DB IIIIIIIIIIIIIII IIIIIIIIIII III IIIIIIIIIIII IAIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIII Sansui SA
40. ransistor 28 TRo o4 0305952 3 25 945 P K 1C 2C Doi 0310340 1001 2 0310340 1001 2 0310340 1001 2 Dos 0310330 1 1 60 2 Dos 0310330 1 1N60 28 Dos 0310330 1 1N60 28 Dor 0310330 1 1960 Diode 28 0310970 IN60P 18 1 09 30 1 60 0311160 1524730 1 151588 0310970 IN60P 2C 1C Dist denies 1N60 P Ris 14 0192479 470 MW Fuse R 2 Ris 16 0201101 1000 IW MR 1B Riz 18 0135221 2200 SW 1A R25 26 0203100 1000 3W 1B 1150390 Relay 18 VRo o2 1035350 4Jk 1 B Volume 18 02 0432500 7 125V Speaker Fuse 2 1 13 8080DB 9090DB 890DB 990DB 5 10 F 2656 Power Supply Circuit Board Conductor Side lt gt lt N 5 11 F 2684 Connector Circuit Board C Stock No 7594491 MODEL 8080DB 890DB Stock No 7594441 MODEL 9090DB 990 DB 5 12 F 2682 Connector Circuit Board A Stock No 7594471 MODEL 8080DB 890DB StockNo 7594451 MODEL 9090DB 990DB 5 13 F 2683 Connector Circuit Board B Stock No 7594481 MODEL 8080DB 890DB Stock No 7594461 MODEL 9090DB 990DB 5 14 F 2692 Connector Circuit Board Stock No 7594881 MODEL 8080DB 890DB Stock No 7594871 MODEL 9090DB 990DB 5 15 F 2695 LED Ass y Circuit Board Stock No 7594621 MODEL 8080DB 890DB Stock No 7594611 MODEL 9090DB 990DB Abbreviations Carbon Resistor Solid Resistor Cement Resistor Met
41. z 120V Usable 110 130V 60Hz for U S A amp Canada only POWER CONSUMPTION Maximum consumption 650 watts Rate consumption 435 watts 530VA DEMENSIONS 540mm 21 5 16 182mm 7 3 16 H 397mm 15 11 16 D WEIGHT 23 6kg 52 0 Ibs net 26 0kg 57 3 1 packed oThe word Dolby and the Double D symbol are a trademark of Dolby Laboratories Inc Noise reduction circuit made under license from Dolby La boratories Inc Design and specifications subject to change without notice for improvements 8080DB 9090DB EYT TUTE 890DB 990DB 2 BLOCK DIAGRAM 2 1 Audio Section POWER F 2624 L CH v F 2617 8 F MIC Jack ss TONE CONTROL v EN IZ r dm Treble VR 125125 z ess See 5 3 Selector i 9 Audio J 8 Mating SW LowFilter TRor 3 1H i3 7E I t E High PRE MAIN Filter Connector i Jone Selector C C C C C C C C fr 4 Tone Selector Switch is used in 5 only 909008 99008 Tomas 95 3 Power Transistor 1 l 53V ip 1 200 Constant Current Circuit 7 PROTECTOR CIRCUIT F 2657 Soz Thermal lead Switch PT Power amp Indicator Prot

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