SERVICE MANUAL Stereo Receiver
Contents
1. 1 4 789 6 1501226 151 2413785 153 STRINGING DIAGRAM POINTER 816 7017 LEFT PULLEY REAR VIEW DIAL SCALE DIAL DRUM Oss TUNING SHAFT N30232 N41222 SLIDER DIAL SPRING No 2701 No 7017 3 PULLEY DIAL POINTER N41221 S 3 TURNS DIAL STRING SUPER 5 DETAIL PULLEY No 7017 102. Connect T102 FM Minimum 98 MHz distortion DISCRI IFT Distortion 1 kHz Mod 10096 Dev meter to the TAPE Te1 FM IFT REC jack FM RF ALIGNMENT B 106 MHz Connect V T V M TC3 FM OSC 60 dB 106 MHz to the TAPE REC trimmer Maximum 1 kHz Mod jack TC1 FM ANT Output 10096 Dev trimmer C2 FM RE trimmer FM SIGNAL METER ALIGNMENT SIGNAL SVR101 Needle deflection 98 MHz meter as shown Fig 2 C2 B 153 Output indicator connection Signal Generator Dial FM MPX PILOT ALIGNMENT 14 Push the FM MUTING button 15 No signal Point of Connect frequency non inter counter to TP SVR151 19kH 10Hz ference and ground FM STEREO SEPARATION ALIGNMENT 16 Release the FM MUTING button 17 C 98 MHz Connect V T V M 60 dB 98 MHz to the TAPE REC 1 Left mod SVH152 minimum 1 kHz stereo jack right channel right output mod L or R or left channel Right mod 3096 Dev minimum left output ALIGNMENT COMPONENT VIEW TUNER COMPONENT SIDE L1 MW T2 TC101 TC102 Tel L2 5 ane ee SIGNA SIGNAL Fig 1 Fig 2 153 ALIGNMENT PROCEDURE TUNER Note 1 Signalinput must be kept as low as possible to avoid AGC and limiting action 2 FM RF alignment on lower side can not be adjusted since a fixed coil is employed 3 Donottry to adjust filters L151 152 since their alignment needs speci
3. T102 FM Minimum 60 dB distortion DISCRI IFT Distortion 1 kHz Mod meter to the TAPE Tel IFT 100 Dev REC jack FM RF ALIGNMENT 12 B 106 MHz Connect V T V M TC3 FM OSC 60 dB 106 MHz to the TAPE REC trimmer Maximum 1 kHz Mod jack TC1 FM ANT Output 100 Dev trimmer TC2 FM RF trimmer FM SIGNAL METER ALIGNMENT 13 B SIGNAL SVR101 Needle deflection 98 MHz meter as shown in Fig 2 153 TUNER BOARD TIM 131A SIDE FM TUN METER FM ANT FM MUTE _ ST LAMP ANT SIGNAL RADIO B OUTPUT METER B MAIN BOARD MPA 130B 1 roit SIDE TI P T SEC SEC 521 AC wm z P T SEC SEC 1 SWITCH BOARD SSW 130 FUSE BOARD FU 144A FOIL SIDE FOIL SIDE TO LAMPS PHONE R B SP A OUT L R SP 8 IN OUT L 7 66 B SPEAKER 6Y AC dicm FROM POWER SWITCH TUNER BOARD 131 2 ees pe ee ee a kasa a a aa Cees s od VOLUME BALANCE TREBLE BASS SELECTOR NM 153 SCHEMATIC DIAGRAM TUNER BOARD 131 1 Set 1928 zi C bove 0 047 106 55 160 o e or ec ee D 250 0 603 voLUME ON v4 Ir ll FUNCTION SW BOARD 15
4. 3 s 115 m z 015 muu ets 21 25 uui ne Eu E T 1 222 mu sev 19 cis n wn 1 DU TH r q ES lt mPa p gt 1 Lo D s ME 5 aos z Z 4t 18939055 A T f x 31015 5391 fe 0 o O FUSE 3 164 00077 iw 182 IC 102 i 0152 15 0201 202 6 20 6 30 302 6 20 344 05 306 128 300 0209 3198 6 311 212 82 314 6 061 405 Q 501 504 m ut 10480 551 a Pmoats 14902 15907 AILAI L JL JL J T OL ape EE Gm 1 LAMP BOAR 9319 EE ee al est SA 0762 PL 130 z Par o 3 54 2 2 s 8 3 6 167 TAa L PES ACROSS Y FUNCTION SWITCH BOARD onh ec 3 ore 4 FU 144 9 8 INE 220v 8101 02 15100 1660 ors 181555 41221 8201 104 6 200 8333055 205 1988 a i400 1987 8 301 3104 1094062 2356 919 2861674 0 C 15 096 2560949 O P 19 20 aldo i 2561221 te 1028 21172 i 19 101 102 1712 9 23 2519506 qe 2508016 13066 C 150601 C 9 150661
5. 51555 HZ36 2 HZ12 C 3 HZ12 B 2 GL9PR2 EWK CPA323BF5 EWK G4A323375 Germanium Diode Silicon Diode Silicon Diode Silicon Diode Zener Diode Zener Diode Zener Diode L E D Potentiometer Potentiometer CONTROLS D101 102 D301 312 205 D201 204 D151 ZD201 ZD202 20301 302 LED151 VR403 VOL VR404 BAL SFE 10 7ML 184001 1 2W 569 1 2W 3302 1 2W 3 3KQ 1 2W 3 9K IW 100 IW 682 IW 3302 3W 2702 0 472 SC 0 001 uF SC 0 01uF SC 0 022uF SC 0 04uF MC 0 047uF 500V 0 01uF FC12PF D FC 15PF D FC K FC 35PF K FC 100PF K FC 150PF K FC 200PF K FILTERS Ceramic Filter Filter RESISTORS Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Wire wound Resistor CAPACITORS Ceramic Ceramic Ceramic Ceramic Ceramic Ceramic Ceramic Ceramic Ceramic Ceramic Ceramic Ceramic Ceramic R309 310 R305 308 R317 320 311 312 R205 R329 332 R202 R335 336 R201 R301 304 C2 8 102 C10 11 101 105 109 112 113 115 C209 213 C65 C62 C419 420 C311 312 C519 520 C423 424 C321 322 518 EWK G4A323B54 Potentiometer V R402 BAS FC 330PF K Ceramic C116 EWK G4A323B15 Potentiometet VR401 TRE FC 500PF K Ceramic C309 310 20K 0B 8 Carbon Trimmer SVR101 ECN C4A 103M Paper 0 01uF C901 902 8 Carbon Trimmer S
6. 7uF Electrolytic C313 314 1784T0301 11 Speaker Terminal 1 318 B2 703N 01 DIN ANT Socket 1 35TW 47uF Electrolytic C513 514 D2 713N 01 Co axial Socket 1 42TW 6800 Electrolytic C201 202 VB 0027 Ground Terminal 1 50TW 0 47uF Electrolytic C114 155 S N5053 Fuse Clip 18 50TW 1uF Electrolytic C110 1L4P Strip Terminal 1 SOTW 4 7 uF Electrolytic C111 D5 710N 00 DIN Jack 1 50TW47uF Electrolytic C315 316 ON RBH MH NNN gt ANNANN N41670 RCA 4 pin Jack FUSES METERS amp LAMPS 5 x 20 Fuse Fu307 308 5 x 20 Fuse FU901 303 304 Fu301 302 Fu902 903 Signal Meter M1 Tuning Meter M2 1 50TW 220uF C205 207 209 501 502 Electrolytic C203 Alum Electrolytic C154 Alum Electrolytic C156 Electrolytic Low Noise C407 408 415 416 421 422 515 516 119 Electrolytic Low Noise C161 164 319 320 403 404 503 504 Electrolytic 63TW 470uF 50TW O 22uF SOTW O 33uF 25TW 4 7uF 3 15A 5 x 20 Fuse 4A 50 x 20 Fuse o SOTW luF EMT 226 EMT 227 153 NE Q ty N41152A Front River 010 Line Cord SR3P 4 Cord Strain Relief Q ty Electrolytic Low Noise APPEARANCE PARTS N 20388 Case 1 MISCELLANEOUS N20509 Rear Panel 1 FM5002A FM ANT N41232 Side Cap Right 1 FB127U 16 FM AM Tuning Unit N41233 Side Cap Left 1 MP 50 Mica 2SB616 N41221 S Dial Poi
7. EDURE TUNER Note 1 Signal input must be kept as low as possible to avoid AGC and limiting action 2 FM RF alignment on lower side can not be adjusted since a fixed coil is employed 3 not try to adjust filters L151 152 since their alignment needs special instruments Signal Generator Output Dial Mas Setting indicator Connection Setting connection AM IF ALIGNMENT Adjust Adjust for Set the function selector to MW 2 A 470 kHz 400 Hz Mod 30 Dev Connect V T V M to the TAPE REC jack T1 T2 IFT IFT Point of non inter ference Maximum Output JA MW RF ALIGNMENT Set the function selector to MW A 600 kHz 400 Hz Mod 3096 Dev Connect V T V M to the TAPE REC jack L2 MW OSC coil L1 MW ANT coil Maximum 600 kHz Output A 140 kHz Connect V T V M TC102 MW OSC 400 Hz Mod 1400 kHz tothe TAPE REC trimmer Maximum 30 Dev jack TC101 MW ANT Output trimmer Repeat steps 4 and 5 AM SIGNAL METER ALIGNMENT Set the function selector to MW A 1000 kHz Needle deflection 80 dB 1000 kHz SIGNAL SVR1 as shown in 400 Hz Mod Meter Fig 1 30 Dev FM IF ALIGNMENT Set the function selector to No signal Point of FM TUNING T101 FM Center position non inter meter DISCRI IFT of the meter ference scale 1
8. NAL METER ALIGNMENT 13 B SIGNAL SVR101 Needle deflection 98 MHz meter as shown in Fig 2 153 ALIGNMENT PROCEDURE TUNER Note 1 Signal input must be kept as low as possible to avoid AGC and limiting action 2 FM RF alignment on lower side can not be adjusted since a fixed coil is employed 3 Donottry to adjust filters L151 152 since their alignment needs special instruments Signal Generator i Output Dial iust f i Setting indicator Adjust for AM IF ALIGNMENT 1 Set the function selector to MW A 470 kHz Point of Connect V T V M T1 IFT 400 Hz Mod non inter tothe TAPE REC T2 IFT Maximum 30 Dev ference jack T3 IFT Output MW RF ALIGNMENT Set the function selector to MW 4 600 kHz Connect V T V M 400 Hz Mod 600kHz to the TAPE REC RAN AN 30 Dev jack 140 kHz Connect V T V M TC102 MW OSC 400 Hz Mod 1400 kHz to the TAPE REC trimmer Maximum 30 Dev jack TC101 WW ANT Output trimmer WW Repeat steps 4 and 5 SIGNAL METER ALIGNMENT Set the function selector to MW A 1000 kHz Needle deflection 80 dB 1000 kHz SIGNAL SVR1 as shown in 400 Hz Mod Meter Fig 1 30 Dev MEE u FM IF ALIGNMENT EON Set the function selector to FM 10 No signal Point of FM TUNING T101 FM Center position non inter meter DISCRI IFT of the meter m ference scale TI B 98 MHz Connect
9. SERVICE MANUAL TA 930 Stereo Receiver SPECIFICATIONS FM SECTION Tuning Range Usable Sensitivity IHF Mono Stereo 50 dB Quieting Sensitivity Mono Stereo Signal to Noise Ratio Mono Frequency Response Harmonic Distortion Mono Stereo Capture Ratio Adjacent Channel Selectivity 200 kHz Minimum Spurious Response Ratio Image Rejection IF Rejection AM Suppression Ratio Muting Threshold Stereo Separation 1 000 Hz 100 10 000 Hz Stereo Threshold SCA Rejection Ratio Sub carrier Suppression AM SECTION Tuning Range MW Usable Sensitivity MW Image Rejection MW IF Rejection MW Harmonic Distortion SPECIFICATIONS AND AUDIO SECTION 87 5 108 MHz Power Output 2 4 uM 4 uM Total Harmonic Distortion 40 uV Intermodulation Distortion 74 dB 40 15 000 Hz 2 dB Powerband Width Residual Noise Damping Factor Input Sensitivity Impedance Phono AUX Tape Play Maximum Input L evel 0 15 0 3 1 5 dB 15 dB 75 dB 55 dB 66 dB 50 dB 0 9 15 uV Phono AUX Tape Tone Controls Bass Treble Loudness Control 30 dB Volume Level Low Filter Output Level T ape Rec Headphones Speaker Impedance GENERAL Power Consumption Power Supply Dimensions Weight Net 45 dB 38 dB 15 pV 60 dB 60 dB 515 1 620 kHz 20 uV 45 dB 40 dB 0 596 DESIGN ARE SUBJECT TO CHANGE WITHOUT NOTICE watts per channel m
10. VR151 50V 350PF J Polystyrene 5 1K 0B 8 Carbon Trimmer SVR1 152 301 302 sev 50V 1500PF K 50V 0 027uF M Polystyrene 10 Mylar 20 C307 308 F1 2 2 L151 152 2 50V 0 047uF M 50V 0 068 M Mylar 20 C14 COILS amp TRANSFORMERS Mylar 20 C16 141015 FM IFT T101 1 50V O 1uF M Mylar 20 C303 306 141016 IFT T102 1 50V 0 033uF Mylar 10 C157 158 FSN1067 AM IFT T1 1 50V 0 047 Mylar 20 C153 140025 AM IFT T2 1 50V 0 001uF J Mylar 5 C409 410 140031 AM IFT 1 510 135006 MW OSC Coil 12 1 50V 0 0033uF J Mylar 5 C507 508 180003 Inductor L103 1 50V O O15yuF J Mylar 5 C511 512 180004 Choke L101 102 2 50V 0 039uF J Mylar 5 C411 414 104001 Coil L301 302 2 50V 0 068uF J Mylar 5 C425 426 122022 Loopstick Antenna L1 1 0 12uF J Mylar 5 C401 402 lt N NPT 0335S Power Transformer 1 10TW 100uF Electrolytic C405 406 418 SWITCHES 16TW Electrolytic C505 506 ESB 7097 AC ON OFF Switch S8 1 16TW 10uF Electrolytic C9 17 ESB 75329 Push SW 1 16TW 22uF Electrolytic C15 SW 3655009 Rotary Slide Switch 51 1 16TW 100uF Electrolytic C151 165 16TW 220uF Electrolytic C206 208 CONNECTORS amp TERMINALS 25TW 3 3uF Electrolytic C13 HLJ 0279 01 020 Headphone Jack 1 25TW 4 7uF Electrolytic C12 N41287 8 pin Jack 1 25TW 4
11. al Instruments Signal Generator Dial Output Settin indicator Adjust Adjust for Connection Setting Settna connection AM IF ALIGNMENT Set the function selector to MW 1 2 470 kHz Point of Connect V T V M T1 IFT 400 Hz Mod non inter to the TAPE REC T2 IFT Maximum 3096 Dev ference jack T3 IFT Output MW RF ALIGNMENT Set the function selector to MW A 600 kHz Connect V T V M 400 Hz Mod 600 kHz to the TAPE REC 3096 Dev jack A 140 kHz Connect V T V M TC102 MW OSC 400 Hz Mod 1400 kHz to the TAPE REC trimmer Maximum 3096 Dev jack TC101 MW ANT Output trimmer L2 MW OSC coil Maximum L1 MW ANT coil Output Repeat steps 4 and 5 mu AM SIGNAL METER ALIGNMENT Set the function selector to MW A 1000 kHz Needle deflection 80 dB 1000 kHz SIGNAL SVR1 as shown in 400 Hz Mod Meter Fig 1 30 Dev FM IF ALIGNMENT Set the function selector to FM Point of EM TUNING T101 non inter meter DISCRI IFT ference No signal Center position of the meter scale 1 B Connect T102 FM Minimum 98 MHz distortion DISCRI IFT Distortion 1 kHz Mod meter to the Teil FM IFT 10096 Dev REC jack u FM RF ALIGNMENT 12 B 106 MHz Connect V T V M TC3 FM OSC 60 dB 106 MHz to the REC trimmer Maximum 1 kHz Mod jack TC1 FM ANT Output 10096 Dev trimmer TC2 FM RF trimmer FM SIG
12. inimum continuous both channels driven into 8 ohms from 40 Hz to 20 kHz with no more than 0 396 total harmonic distortion Less than 0 3 at rated power into 8 ohms 40 Hz to 20 kHz Less than 0 396 at rated power into 8 ohms 70 Hz 7 kHz 4 1 40 Hz 20 kHz 0 5 mV 30 at 8 ohms 2 5 mV 47 kohms 150 mV 47 kohms 150 mV 47 kohms 100 mV Phono Signal to Noise Ratio IHF A 64 dB 84 dB 8 dB at 100 Hz t 8 dB at 10 kHz 8 dB at 100 Hz 4dB at 10 kHz 30 Hz 6 dB oct 150mV 350 mV 4 16 ohms 120 watts 220V AC 50 Hz 442 W x 385 D x 130 H mm 8 8 kg 19 4 Ibs 153 PARTS LIST T Q ty Q ty L901 903 BF310 50020A INTEGRATED CIRCUITS amp TRANSISTORS LA1231 HA1197 LA3350SS 2SC929 D E 2SC1327 5 T 2SC828 Q R 2SB616 O R 2SD586 Q R 2SB647 C D 2SD667 C D 25 798 G 2SC828A R 2SD667A D 2SD234 O Y or 2SC1398 P O R 2SC1328 5 T IC IC IC Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor IC101 IC103 IC102 Q101 Q152 153 Q151 Q303 304 0301 302 Q307 308 Q305 306 311 312 0313 314 Q309 310 Q201 202 Q203 Q401 406 501 504 NNN eo o 3 4 4 1 8 5 1 1 2 2 2 2 4 15188 WO3B 134002 V06B GP 20B DS 442 or 1
13. nter 1 5OK Insulator 2SD586 N41281 S Pushbutton Power 1 No 18 Mica N30209 1BK Knob Guide 1 No 24B Insulator 2sc 398 N30229 3 Knob Guide 1 OM 153 Instruction Book N41224 Pushbutton 7 PACKING MATERIAL N41665 Tuning Knob 44 1 N41668 Carton N41661 Knob 21 VOLUME 1 N20389 Pad Right N41666 Knob 21 FUNCTION 1 N20390A Pad Left N41667 Knob 19 Audio Controls 3 N41321 Pad Top N30228 Front Window 1 N41424 Pad D N20412 1 Dial Scale 1 N41318 Poly Bag for Unit No 7104 Foot 4 N40487 Poly Bag for Inst Book Note 1 Part orders must contain Model Number Part Number and Description 2 Ordering quantity of screws and or resistors must be multiple of 10 pcs 3 Resistors not detailed in parts list are all carbon type 4 watt With regard to the value refer to the schematic diagram FRONT WINDOW DIAL POINTER DIAL SCALE TUNING KNOB 44 N30228 N41221S N20412 1 N41665 FRONT RIVET N41152A SIDE CAP SIDE CAP LEFT 141233 PUSHBUTTON POWER N41101 KNOB GUIDE N30209 1B K KNOB GUIDE HEADPHONE JACK N30229 4 HLJ 0279 01 020 KNOB 21 KNOB 19 FRONT PANEL KNOB 21 PUSHBUTTON KNOB GUIDE N41661 N41667 N20542 N41661 N41224 N30229 3 LOOPSTICK SPEAKER TERMINAL CASE REAR PANEL ANTENNA 1784T0301 N20388 N20509 122022 CORD STRAIN RELIEF SR3P 4 DIN ANT SOCKET RCA4PIN JACK B2 703N 01 LINE CORD FOOT DIN JACK 8 PIN JACK GROUND CO AXIAL ACC 010 NO 7104 D5 710N 00 N41287 TERMINAL SOCKET VB 0027 D2 713N 01 153 ALIGNMENT PROC
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