SerVice Manual - Hobbielektronika.hu
Contents
1. a ma y CH908A D orive P c n J i ptem CN501B dc w902 VOIT F EF E ee de S E G S S S A S S S sata ae Ht 22222777 aed W701 H TONE CONTROL CN90I 2 CN903A CN904A I 8 1 61 6 CN901B CN902B CN9038 CNSO4B G POWER SWITCH B CN908B m OPERATION P C B SA GX230 SA GX230 SA GX230 B TERMINAL GUIDE OF IC S TRANSISTORS AND DIODES INTERNAL CONNECTION OF FL Mi TERMINAL FUNCTION OF IC Grid connection diagram 10901 MN187125STV Microcomputer ueceno oem QUARTZ LOCK MEMORY FM ST bd M SCAN wem LI iautine AM MW j s m CH LI LII LOUDNESS 58 FM LW 9 55 O M5218AP Jo Chip enable terminal DATA1 Serial data signal Serial clock signal Serial data signal Not used open CE Segment signal to FL display Power supply terminal to FL display Power supply terminal Crystal oscillator terminal 4 19MHz to 16 8G DATA2 OSC2 0 1 1 14 22. elle QE E acre assis asy es por e b SY mor pam ass H 5 mem s roses rac as vto M Quas D pro amemus ce w mom u qms __ ea ay 1 E owsa jum see 13 RGUO394D S BUTTON INPUT SELECTOR 09 eo INSTRUCTION pen mn a 9 88 ki mess 7 s pon fooro noe mS PORE SUP 15 6 Tc uns pare Moni fis eux 7 677 aonan furon pve SES e eames m too aire sem p pen umm o _ m ee eo 1 1 20 K BATTERY COVER F GND TERMINAL NUT SC it rT 3 AG PLUG ADAPTOR VOLTAGE CAUTION LABEL 4 eo z E LAG134 Z 0 2 B3 8JF2 3 109 170 i mM 2 P w 3 oma FL HOLDER S P EE 28 4 SA GX230 SA GX230 Part Name amp Description Remarks Ref Part No Part Name amp Description Remarks Ref No Part No Part Nase amp Description Remarks Ref No Part No Part Name amp Description Remarks SW TUNING DOWN 8931 SW BAND SELECT LW AM LW E EB ZAM EG SW BAND
3. AV Control Stereo Receiver Service Manual ORDER NO AD9206177C2 Receiver SA GX230 Colour Area SPECIFICATIONS DIN 45 500 lI AMPLIFIER SECTION Power output DIN 1 kHz T H D 1 2x80 W 4 Q 40 Hz 20 kHz continuous power output both channels driven 2x50 80 Total harmonic distortion rated power at 40 Hz 20 kHz 0 5 8 half power at 1 kHz Intermodulation distortion rated power at 60 Hz 7 kHz 4 1 SMPTE Power bandwidth both channels driven 3 dB 0 5 8 10 2 40 kHz 8 Damping factor 40 8 Q Input sensitivity and Impedance PHONO 3 mV 47 CD VCR 1 200 mV 22 VCR2 TAPE 200 mV 22 kQ PHONO maximum input voltage 1 kHz AMS 150 mV S N at rated power 8 70 dB 80 dB CD VCR 1 80 dB IHF A 90 dB VCR 2 TAPE 80 dB IHF A 90 dB Frequency response RIAA standard curve 0 8 dB 30 Hz 15 kHz CD VCR 1 10 Hz 40 kHz 3 dB VCR 2 TAPE 10 Hz 40 kHz 3 dB Tone controls Bass 50 Hz 10 dB 10 dB Treble 20 kHz 10 dB 10 dB Loudness control volume at 30 dB 50 Hz 9 dB Output voltage VCR 1 OUT 200 mV TAPE REC OUT 200 mV Channel balance 250 Hz 6 3 kHz 1 dB Channel separation 55 dB Headphones output level and impedance 430 mV 330 Q Load impedance 40 160 80 16 Q Technics 0 03 8 Q Suffix for E German
4. RLQZPRA7KT Y COIL ELEPKR22MA COIL E EB mex mn 501 RJUQU3KOIOMI 50 10 CNBOLA RISIAI7O5 CONNECTOR 5P sie VER y U poor SoHE SW PRESET TURING 2 5804 EVQ21405R 5 PRESET TUNING 3 EE bm pu t fw ser Tv a TRANSISTOR 135 RLQZPAR2KT 001 EVQ21405R 58 PRESET TUNING 5 CoB RJSIAT703 CONNECTOR 3P B CERES IWNSISIOR 160 602 810007640 pon SH PRESET TUNING 6 choe RIT003K010 1 CONNECTORCIOP messo 5 FETAL TI TRANSTSTOR TRANSISTOR TRANSISTOR TRAMCTCTOR arn nen 4 bane L851 852 RLOZPIROKT Y COIL im fueron pu im jpenum foo S907 fEvQ21405R 54 PRESET TUNING 7 5405 coNNECTOR SP 5008 s eum sur meer mmo dC MW LU Eva aJ 144 EVQ21405R 15 POWER nsn 777 CONES TRANSISTOR 5917 EVQ21405R SW INPUT SELECT TUNER JK401 SJF3069N PHONO CD TERMINAL mu aioe UCD A T701 RTPINSBOIS W PORER TRANSFORMER MAIN E751 RTPIISEQ03 V PONER TRANSFORMER SUB C 592 EVQ21405R 99 INPUT SELECT VCR2
5. ANT zr j i di aee 750 ve 6 yey T 2 mi ol i d jj gay y E BEA p bi E x pee o LOOP ANT F n Lia y EMOTE VIDEO OUT PLAv INI RECIOUT IN OUT CONTROL Prono G 91 ag gt 55 24 25 26 5 orive eco eres en ma Pu n a x 2506 E SS LE ics C 5 MELS M ip k ig y 1 a AHH IB BAAN REPI326E S m REPI326F S EG che P C B REPI325F Gas P C B REPI325G is VIDEO R AUDIO IN L 9 PCE 587 REPI326F S 2 6 30 CHANNEL RANDOM PRESET TUNING 5 41 5932 E Ea areas 930 ese IT t Ru eec dre QE MY mS CP T PS NO 190 5 oN _ VA x 5 2 27 28 29 326 5 halon uim REPI326F S TONE CONTROL BALANCE SA GX230 ll WIRING CONNECTION DIAGRAM For areas SPEAKER SWITCH HEADPHONES JACK l rower CNG6OIA T7OI Power transformer SPEAKERS PHones VIDEO OUT REMOTE TAPE VCRI CD NM PLAY IN UN gt 601 i CR202B
6. p 4 VLLL 7 10 11 12 13 14 Video selector control terminat VIDEO Not used connected to 2SA992EFTA 2 UNAZIFTA 25 3311 GND terminal resister 25026310 5 eee Sommer fo Not used connected to GND i i aw 37 Not used connected to GND EC 28C2785FETA fees e i duis 28C2787LTA Key return signal Received signal detect termina IS Anode connection table _ a b KEY1 3 J 2SA933SQRSTA 2S8C1740SQSTA 28C3327ABTP 28J40CDTA 2SB1187DEF 2SD1761DEF e 9 Forcible monaural signal o e us B I 2 2 7 Muting control to tuner circuit Stereo signal detect terminal Not used connected to resistor 18 FM ST S A 41 T M 51 HOLD Muting control signal Not used connected to resister Loudness contro signal Muting control to amplifier circuit Muting control 20dB to amplifier circuit Service interruption detect terminal E Level shift control terminal Not used connected to GND Relay control terminal 55 DAC SUR Anode o 1 g s s eV gt HE A 19 CNN Rotary tuning control terminal 2 9 j Sense of rotation for volume Not used c
7. IK 2107 RIOS B SHEER T Ex WK 560 TH Ja T wo mb gal galg a b gt y 04 n n ME c Vary Ss esei SSI 281 3212 bis E oan 05305 0N i CP x F 8 2 04Y E gans oo 3 ce y CFA 1 1 1 1 iv 15V F 7 5 x 30XHt 1620XHr x 2301302 standard Therefore there may exist some errors in the AM EB LINE T EE oram 2 14 to nee ee voltage values depending on internal impedance of the FM AM LOOP FILTER i POWER SUPPLY CONT or L L A DC circuit tester 2SADSASQRSTA 21465 05 587 MUTING CONT z Lie ly All voltage values shown in circuitry are DC voltage in DIT e 9000909 006960709000 FM signal Stereo signal reception made 755285 222555 Figures in Stand for DC voltage in AM MW signal 2 TR ic M reception mode E ey circuit Figures 1 Stand for DC voltage in LW signal To Muar ae pass as reception mode TE e The supply part number is described alone in the replacement parts list Production Part No Supply Part No IC301 AN7470 SVIUPC1161C3 2891 677 677 Caution IC and LSI are sensitive to static electricity F Secondary trouble can be prevented by taking care during repair e Cover the parts boxes made of plastics w
8. FM 400 N LOUONESS BALANCE AUTO MONO LEFT AGHT L AUDIO A VCA2 ees EG area me 8 16 MERECE NNUS 4 Band indicators FM LW MW for E EB areas FM AM Indicates the selected band for EG area Input selector frequency display INPUT SELECTOR FREQUENCY Displays the selected source or broadcast frequency Memory scan button MEMORY SCAN This button is used to locate a desired broadcast station each broadcast station is selected for about 3 seconds Tuning buttons TUNING These buttons are used for tuning to the desired broadcast station Memory button MEMORY This button is used when presetting broadcast station fre quencies into memory Preset tuning buttons 1 0 30 CHANNEL RANDOM PRESET TUNING These buttons are used to preset broadcast frequencies into the memory of this unit and to recall the desired sta tions Band selectors FM LW MW for E EB areas FM AM for EG area FM Press this button to listen to an FM broadcast LW Press this button to listen to an LW broadcast MW E EB AM EG Press this button to listen to an MW AM broadcast ALLOCATION When the MW AM button is pressed for about 3 seconds the MW frequency step will change to 10 kHz per set This step is set to 9 kHz before shipment In order to return to the original frequency indication press this button for about 3 se
9. FRONT PANEL CONTROLS AND FUNCTIONS Tuner section D 2 CJARIZ LOCK MEMORY sr MUTING cuc 28 1000455 D Power STANDBYI ON switch POWER 2 This switch switches ON and OFF the secondary circuit power only The unit is in the standby condition when this switch is set to the STANDBY position Regardless of the switch setting the primary circuit is always live as long as the power cord is connected to an electrical outlet Remote control signal receptor REMOTE SENSOR Receives the signals from the remote control STANDBY indicator STANDBY This indicator illuminates when the STANDBY mode is set by the main unit or the remote control transmitter Channel display This display shows the channel number selected by one of the preset tuning buttons Also this display shows the channel number for about 3 seconds during memory scan operation Quartz lock indicator QUARTZ LOCK This indicator illuminates when the unit is tuned precisely to a broadcast station 6 Memory indicator MEMORY This indicator illuminates when the memory button is press ed FM stereo indicator FM ST This indicator automatically illuminates when an FM stereo broadcast is being received Note It will not illuminate if the FM mode selector is set to the monaural mode Memory scan indicator M SCAN This indicator illuminates when the memory scan button is pressed
10. orive circuit 3 operation circuit 0551653655 201 RSLOIIG F 0511 512 0503 504 25A1309AQ5TA 25C3327ABTP 25 3327 166501 MOTOR DRIVE FL BIBPLAY For area ATTENUATOR MUTIKG 5VI32058 n 0854 55 5316 923 5950 POWER AMP ox Eg 5 225 PRONO 1 8 NA a AICSO n 0655 on E ages ROTOR Q o 0 l 33K 0 Hu 932 302 i EF x 0553 83 y WALES TA OTT 925 CH3004 9088 b 2 gt gt a 4 0652 amp 2 2 AW soa POWER SWITCH CIRCUIT R938 100K MAIG STA 94 POWER ey 20 y T74mset pt d rcc rl uc 918 155 0652 2685 100P 4505 506 25 621405 T NTROL CIRCUIT 2541309 05 MOTOR DRIVE D MUTING CONT Bre ae 16410 9701 85 8 vw 250 I76IDEF SPEAKERS UPC4570C REGULATOR 5 o 45602 caso CONT evi Q501 502 Lch 44 SWITCHING RITA mn LOUDRESS EVES ELD 2068 irawe 59 E 2 en CE BS IBA LANCE Aan uiro MN 187 255 MICRO CONPUTER cas 846218 MOTOR DRIVE VOLUME G RTOI 17205 56 5 i 631 10K 0601 a
11. 4223 1 4 22K R259 ERDS2TJ223 f l 4W 22K BEB R451 452 ERDS2TJ391 1 4H 3 ns ee e Values amp Remarks ERDS2TJ103 1 A 938 RDS2TJ104 1 489 100K Ref No Part No Values amp Remarks 658 ERDS21J223 ERDS21J222 ERDS2TJ103 ERDS21J333 ERDS2TJ104 ERDS2TJ153 R664 665 ERDS217103 666 ERDS21J333 R670 ERDSIFVJ3907 671 672 ERDS2TJ471 R673 ERDS2TJ332 WM 33 687 688 ERDS2TJ102 R689 690 ERDS2TJ221 701 ERDS1FVJ332T R702 ERDS2TJ122 n R704 ERDS21J222 V A 22K R705 ERDS21I2727 R708 ERDS2TJ102 708 708 ERDSIFVJI80T R710 ERDS2TJ272T R711 ERDS1FJ270 R715 ERDS2TJ103 R716 ERDS2TJ222 R717 ERD25FVJ150T 8718 719 ERDS2TJ1ROT R755 ERDS2TJ102 8771 ERDSIFWJ2RT 773 ERDSLFVJ6R8T R777 ERDS1FJ270 780 ERDSLFVJ4R71 iuis s R911 912 ERDS2TJ382T R917 918 ERDS2TJ273 cam R927 UA 180 i545 m d ERDS2TJ182 we id _ ism sn am 2 937 59 4 e gt gt d en gt c1 lt gt 29 R660 R661 E E B gt T e B 52159 9 gt oe de oi an lt gt 3 on po amp PE tas gue C101 102 50 5 0 C106 50V 0 010 C108 2
12. 54 40101 1 OSC BUFFER DET vR502 ATTENUATOR AMAMW LW rene BALANCE vR471 472 B DRIVE IM VCR2 VIDEO IN owas b 0814 615 0505 0506 5 Q103 104 VIDEO OuT FT in SWITCHING A E RR ULP ANT a 1 XIN FH IN BOT 1 L 10 ERE b voo DATA A OS ee a I6 3 4 5 1 47001 iB PLL FREQUENCY SV13205B POWER AMP HEADPHONES i 13 30 32 CE OATAl FMSY IEY AFM 20dB F R i MONO tiov oc m eerte D701 704 RECITIFIER Q701 703 704 713 a Q705 45 8 1871255 8 Yep HD 0709 710 40 MICROCOMPUTER ORFA REGULATOR 1 17 26 35 37 55D 1 bs FL DISPLAY d e RN Q901 902 REMOTE 0 KEY MATRIX SPEAKERS E EB only 0554 a pe b oe Q 754 4 16 s 1 RECITIFIER S SERVICE INTERRUPTION RESET FAN MOTOR 065 655 G8 0501 RL DETECTOR i MOTOR reu _________ v oer so ses c mee 27 54 46 535 9 64 Note AF signal FM OSC signal REMOTE REMOTE CONTROL u AM MW LW signal eo dedu A
13. 5V 4 10 m m8 mm cas 215 ECKRIHLO3ZE5 217 ECEALHKAO10B 50V 20 os EUN 301 18V 1000 C303 ECEAIHKAO10B 50V 1 C304 306 ECEALHKA3R3B Gas zw C310 25V 0 040 311 50V 470P C313 314 50V 1000P DAQQA H ROL S 38 xm WP o mu NEN Bs XT R616 617 1 8 40 A is 0 R631 LAW 22 E ca bho bo GO R65 zo 2 e c lt m SA GX230 321 1 100 16V 100 C323 324 ECFRIES32KR 25V 3300P C325 ECBT1H330J5 50 Ref No Part No Values amp Remarks Ref No Part No Values amp Remarks C697 698 01 5 701 707 ECESHV822UM bm rennon EET vus _ 609 610 zm ECAICMLO1B 16V 1000 DINE 257 0 100 10 J c an 3P 0326 ECKR1H103ZF5 50V 0 010 C401 402 ECBTIEIO3ZF 25V 0 010 TOOT 22U jesus emnes C421 422 ECEAICKA220B 16V 453 454 50V 100P C457 458 25V 0 0220 ECFRIEG82KR 25V 6800P 461 462 ECEA1AKA330B ECBT1HI50JC5 16V 10U 10U ca gt en eo gt gt ca c C651 ECEALHKA2R2B 1 1037 5 LN C671 672 80 5 0154 0755 C771 0791 0851 832 C853 854 0891 0901 0
14. 902 C904 905 ca ECBT1E103ZF 29V 0 010 ES gt gt ECQE2104KF3 250V 0 10 2 6V ECKWNS1032VS 500V 0 01U gt ECEAQJU101B 6 3 1000 ECFR1E104KR 5V 0 10 0 0 473 474 475 476 C477 478 10V 0 ECBT1H101KB5 ECBT1H221KB5 EC A1CKA100B ECFR1E392KR 0 1 1037 10V ECEA0JU102 6 3V 10000 C479 480 RIRI23KR 25V 0 0120 C481 482 ECFRIEGB3KR 23V 0 0680 ECFRIESBZKR 29V 5600P lt DL J T bo gt co ce M 485 486 ECFRIE273KR 25V 0 0270 887 688 ECKRIHIO3ZF5 50V 0 010 906 ECBTIEI037F 25V 0 010 C487 488 ECBTIE1032F 25V 0 010 C689 690 507 C911 912 ECEA2AUI00 100V 100 A 2 489 492 0 0 0691 692 ECKRIHIOSZFS 50V 0 010 C913 ECEALHKALOOB C501 502 25V 4 70 C693 694 ECBTIH331KB5 50V 330P E EB 0914 1008 50V 100 A 6503 504 ECBTIHI01KB5 50V 100P 693 694 ECKRIH331KBS SOV 3300 EO C818 108 505 506 ECEAIEKAAR7B 25V 4 70 95 696 331 85 Sov eB PACKAGING n p ex Uem er ex un mper A4 Batteries UM 4 R03 L A6 1 adi Printed in Japan H920609000 NH YU TN
15. ER 9210 FM LOOP FILTER 2SA933SQRSTA 28A933SQRSTA LW MW OSC 2SCI7T40SQSTA 0205 206 ox MUTING CONT POWER SUPPLY CONT 25CI740SQSTA SIGNAL DET 69600 ao E 1 4 51 RAGI IBOX 1455 12K d 687 ANGS58F R467 L ch b PHONO EQ AMP NN Be A ear E e8 8 8 3 PHONO icm E AUDIO IN Rj SIGNAL Een 27 a JK404 29 VCRI at VCR R ch Q VIDEO OUT EET m Gnaeus n t oo I4 A STT EST 3 SWET CHING EET L ch O REIN um PHONG 3 R430 R109 100 40 QOX NT ww i YO ON Mr dr ov 25 A 38409 9 eh e Go GOK OF RUI 100x 59 COMTROL QUT Len 470 90 25v4T 16402 Pis C M5218 BUFFER AMP R ch i IC401 25 gef TC9I63N INPUT 4K402 SELECTOR 1 81 E401 ch m a zu E 4 uk LS f gei a VCRI RAIT T 38 p pol ch Yo Les n m Les ERN R ch 155 799 L ch REC QUT T 25 9199 K ur L R ch O uc f i TAPE 8413 T58 g ch 9 B ea c PLAY os L 2 2x OM R ch SE h i MAIN CIRCUIT 21 0 230 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
16. LW at 252 kHz 55 dB Control keys 32 keys Image rejection Dimensions W x H x D 70 27 175 mm MW at 999 kHz 40 dB Weight including batteris 1254 LW at 252 kHz 40 dB Power source Two UM 4 IF rejection Panasonic ROS LROS or equivalent MW at 999 kHz 55 dB LW at 252 kHz 55 dB Notes For EG area 1 Specifications are subject to cahnge without notice Frequency range 522 2 1611 kHz 9 kHz Schritte Weight and dimensions are approximate 530 kHz 1620 kHz 10 kHz Schritte 2 lota harmonic distortion is measured by the digital spectrum Selectivity S N 20 20 uV 330 uV m analyzer Selectivity at 999 kHz 55 dB Image rejection at 999 kHz 40 dB IF rejection at 999 kHz 55 dB CONTENTS Page Page 2 PRINTED CIRCUIT 27 32 2 WIRING CONNECTION 33 REAR PANEL TERMINALS AND FUNCTIONS 3 4 TERMINAL GUIDE OF IC S TRANSISTORS AND DIODES 34 FRONT PANEL CONTROLS AND FUNCTIONS 5 6 INTERNAL CONNECTION OF FL 35 REMOTE CONTROL 2 2 2 444 7 7 8 TERMINAL FUNCTION OF IC 36 DISASSEMBLY INSTRUCTIONS eese 9 12 CABINET
17. M MW LW OSC signal c Phono signal A 8 FL DISPLAY ind cates Pin No of right channel TRANSFORMER 2 SA GX230 SCHEMATIC DIAGRAM schematic diagram may be modifled at any time with the development of new technology Parts list on pages 40 44 1 a Ios y 1 o Note 1 r Note 2 5501 Speaker selectors SPEAKERS switches Use of ceramic filters in pairs 5601 1 A 5601 2 mE The ceramic filters CF201 CF202 for FM IF circult 5701 Voltage selector VOLT ADJ switch _ are available in three ranks For this circuit be sure For E EB areas e to use the ceramics of the same rank in a pair 8901 910 Preset tuning 1 0 30 CHANNEL RANDOM gt At repairing and replacement pay close attention to PRESET TUNING switches the short jumpers J221 J222 for use as different S901 1 902 2 5903 3 904 4 oo short jumpers must be used depending on each rank S905 5 5906 6 5907 7 5908 of the ceramic filters 909 9 910 0 re 5914 Power POWER switch 1 Color marking 8916 918 Blue 921 923 Input selector switches d SL Ei B S916 PHONO 917 TUNER cus 5918 TAPE S921 VCR 2 jun 5 S922 VCR 1 923 CD PET TUNER circuit For EG a
18. MAIGSTA 847 ww 0703 Ux 25 26310 5 25A992EFTA 4 0704 rH 52 REGULATOR RELAY DRIVE a IOOKIE 0705 VRAT SPEAKER SWITCH HEADPHONES JACK CIRCUIT 0105 0704 113 For EG area 601 2SC3940AQSTA 230331 IAQSTA REGULATOR STABILIZER 15 54 5V 0091 UN4II3TA 9152 0 9751 3 REMOTE 25C3940AQSTA UN42IFTA E ower SUPPLY CIRCUIT SA REGULATOR RELAY ORIVE ERRER 0814 815 0893 aai W702 pac LLL 6 25 93350 5 A A 2 2 i 1 HEADPHONES lt ISTANDBYYIRG lt 585275 LNBOSRPH 29 570 HYOLT ADJA raw 5 9 Y A mw vt dd Q Peoc t zez SPEAKERS UN42I4TA UN4214TA 25A933SQRSTA O A muore sensor K d EC SWITCHING SWITCHING SERVICE 3 5 0 INTERRUPTION DETECTOR A 8710 750 0708 8711 15 8Y 19 v SAT act 2424 pd For E E8 arnas Av MA4IBOLTA 0703 MAA amp ZTOMYA RUT Avawls 07017704 PIOUOLF 0708 710 2SBIIB7DEF REGULATOR A AC n 30 2404 E EB 230V EEG SA GX230 SA GX230 SA GX230 SA GX230 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Mi PRINTED CIRCUI
19. PARTS LOCATION c ccsssssecsessesessrsseserssssseracssosee 37 38 MEASUREMENTS AND ADJUSTMENT S 13 REPLACEMENT PARTS 116 2 1 1 2 2 2 2 39 42 BLOCK DIAGRAM 14 16 RESISTORS AND CAPACITORS e eere 42 44 SCHEMATIC DIAGRAM 1 raura 17 26 PACKAGING peee 44 ACCESSORIES power supply cord 1 pc indoor antenna AM loop antenna AM anntena holder ene K E ES RSA0007 1 pc SPB1163T SMA231M n SJA193 EB Au Screws Remote control transmitter Batteries e Attachment plug XTN3 10AFZ 2 pcs RAK SA302E 5 UM 4 RO3 SJP9009 EB only 1 pc N for Remote control unit eS BEFORE USE wu Be sure to disconnect the mains cord before adjusting the Note that this unit will be seriously damaged if this setting is not voltage selector made correctly Use a flat tip screwdriver to set the voltage selector on the rear panel to the voltage setting for the area in which the unit will be used SA GX230 REAR PANEL TERMINALS AND FUNCTIONS 5 connection doble _ TAPE terminals Cooling fan not included Connect a tape deck The cooing fan operates at i output power levels only Caution White L Do not place books etc on top of this unit so
20. RDS T 1773 1 44 22K 1 150 L1 ERDS2TJ103 AM 10K R303 304 ERDS2TJ223 4W 22 va x _ m 11nn J 275103 3 LU 104 ERDS2TJ102 R106 ERDS2TJS62 1 4 5 6K R107 ERDS2TJ103 1 4WN 10K 1 4N 100 1 48 0 R108 ERDS2TJIS 1 4 150 R229 ERDS2TJ102T 1K EG LA 5 6K 8109 01 ERDSZIJI04 1 4 100K 1 48 100 R201 148 8 2K ERDS2TJ102 148 IK E EB ERDSZTJIS4T 1 8 150K G szu vA R204 ERDS2T4824 1 4W 820K Ro ia 30 Ros EMI 144 R207 ERDS2TJ822 1 48 8 2K 8 ERDS2TJ102 1 4 1K 9 R233 ERDS2TJE i 1 48 kx _ 1 44 10K Ras 1 4 R23 6 Rs poene 778 meum ve ik Vw m 314 AIK o vi we Ww TEE Ril ERDG 215222 1 AN 2 2K Esso M 10K EB Es 8 2K 8212 ERDS2TJ153 1 4 15K R252 ERDS2TJ822 1 4 8 2K E EB R405 406 ERDS2TJ102 1 49 1K Ru iw ves T NY R214 ERDS2TJ824 1 48 820 R254 ERDS2T9223 22K E EB AW IK Ris eRDS2TJ153 L 4M 15 1255 JER S2TJ102 1 1K 8258 eRDS2TI122 iw 12K Ete 294 o o 1 217 280521
21. SD MPX 1 ECTOR Ex FM FRONT END CF202 148 Ue 4 _____ ANT2T3A INPUT SEL MOTOR DRIVE VOLUME ae er r 2 heel wel Vcc 71 201 m 25 237 FM iF 1 AM FM IF m AMP DET amp AM MIXER cre Fe 1 52 E ger enoNo Q SEA 8 E 02019202 4 2 5 8 i 7202 oS T8 Hore L 3 4 BUFFER CO al 4 126 x2 Lh O 5 2 a fone 4 YOLUME GD aoe FORCIBLE 22 pr MOTOR FM FM AM LOOP gt _ FILTER CO STOP 5 nog ea BUFFER AMP MUTING 5 MC x4 co 69 1CA71 AM ANT REC OUT Sc T EZ we 5 0 TONE CONTROL a E 22011601 i 7 r 9 5 E zai Z25I 1 EB PLATO gt i221 d t20 1 ANT COIL TP301 4 j 6l ES VRBO Pa ens lt 50 adJ 8 VOLUME A l 056 COIL mex veo aa 213 xe 0501 502 on aed OUT 1 5 im 1 SWITCHING 134 P 1 5 ema BY LOUONESS 6 9 3 e 5255256 i L 8 xe 1 l 0210 92050206 UN io p 3 4 Qst AM Mw LWI AM UMW LW SIGNAL us T m ias LOOP FILTER Q251 2
22. SELECT EB SLI72Z101 T COMPONENT COMBINATION wet Vee IMA165 wok RLAG2002 T COMPONENT COMBINATION E EB 5933 EVQ21405R 99 MODE E vem uis nor cain poner mu RODHC 677 REMOTE SENSOR 3935 EVQ21405R 5 my Gene Sidi pues ooe omna poet eL TEL amp OSCILLATOR RL601 RSY0013 0 RELAY RLFKTF2MO1LA RED 10 700442 d CF201 202 CF201 202 pe wmwwap 0 0 E RLFKTF2WD1LC ORANGE 10 725MHz prn poz 165 DIODE CORNECTOR SP pos MA4047MTA DIODE RISIA1703 CONNECTOR UP MEE ss us TRANSISTOR E EB 0913 814 MA165 DIODE TRANSISTOR rr nni O15 FUR EB CN710 RJSIAI703 CONNECTOR a 751 SJ8305 1 CONNECTOR WEEE QU 7 _ RIUOOKOOBHL SOCKET BP MONONA mnavnane RITOOSKOOG 1 CONNECTOR COP 80098 RIUOOSKOOEMI SOCKET EP CNS04A RUTOO3KO06 1 CONNECTOR EP CN202A RJT0578007 1 CONNECTOR SERERE CHAOLA RJS1A1703 CONNECTOR 3P mus Los A L203 204 ee ee
23. T BOARDS EE SUPPLY PC B REP 286 M E50 i taire err eorr rorem SSS A A Oty Tim FM MPX 40 OFFSET VOLTAGE 18 Tris 9026 19k z OUTPUT ADJ TUNER P C B For E EB areas SERIE cili REPI325F M hn REPI325F M E EB poise REPI325G M ES 230 240N 87 230y EG 50 60Hz no i 1701 a T n Power eon C2 E 1 DA psa E transformer Pb tu e i me dar 7mm FM AN B Vi e a 1 a i 750 1 1 REPI325F M E EB iE 13256 UN Hidi 4 4 ni 53 j i f t E 4 e l i E 2 M 3 ol Yo j M BG AY MEL Hi n Ly PI ar 6 Me ERA A Ec f uh 12 Mreta LOOP ANT For areas VOLTAGE ADJ 1 FM MPX VCO ADJ FM OFFSET VOLTAGE D OUTPUT 04 TUNER P C B For EG area vM 256 EO v Li TEE n ig te 0708 0710 Ji SPEAKER SWITCH Ew HEADPHONES JACK P C BAREP 326F S EG DU Ty TU ui Et T
24. aaa 922 94 INPUT SELECT VCRI Sn _ promo co mea jen ae 5015 VIDEO TERMINAL JK405 SJFK5 1 VCR2 TERMINAL HE Ref No Part No Part Name amp Description Remarks Ref No Part No Part Name amp Description Remarks JK409 RJJ33TROL REMOTE CONTROL OUT gt 805220 FLAT CABLE SP PIA fa MAHLER 8 780054 SPEAKER CONNECT A RWJ1803080KK FLAT CABLE 2 moo SPEAKER CONNECT TERB RRUBQBOROKG FLAT CABLE BP it pe mis GHD DI ATF Pui W401 RHJ1806140KQ FLAT CABLE 6P RHJ1810340KQ FLAT CABLE 10P 1825200 FLAT CABLE SP bm perm _ ms 5 prom E402 Notes Capacity values are in microfarads uF unless specified otherwise P Pico farads pF F Farads F Resistance values are in ohms unless specified otherwise 1K 1 000 OHM 1W 1 000k OHM Ref No Part No Values amp Remarks Ref No Part No Values amp Remarks Ref No Part No Values amp Remarks ERDS2TJ583 f 1 48 56K R218 ERDSZU 102 144 EEB 29 6805214223 R202 8805217332 1 4W 3 3K R220 JERDS2TJ103 144 10K R221 ERDS2TJi04 4W 100K R264 ERDS2TJ 102 1 48 IK E EB V a Rm wm aK 8224 F
25. adphones jack B 2 Remove the 3 screws 0 9 3 Remove the front panel ass y in the direction of arrow How to remove the flat cable 1 Lift up the connector 2 Pull out the flat cable Flat cable E Connector Procedure 1524 Tone control knobs Balance knob 1 Remove the 2 tone control knobs and a balance 2 Remove the 5 screws Q knob SA GX230 Removal of the volume P C B 27 Removal of the FL drive P C B Procedure Volume knob Procedure 12525 15256 e FL Drive PC B Pull out the volume knob Remove the nut Remove the 1 screw 1 Remove the 5 screws Q Remove the volume P C B in the direction of arrow 2 Remove the FL drive P C B in the direction of arrow P m Ref No Removal of the power switch P C B Ref No wW and Operation P C B Removal of the VCR2 P C B Procedure Procedure 12256 1228 Power switch P C B Remove the 13 screws Remove the 2 screws T Removal of the rear panel i ou Removal of the tuner P C B Procedure Procedure 1 9 Rear panel 19 10 1 Remove the 13 screws Q 2 Remove the 1 connector CN651 1 Release the 1 claw 3 Remove the rear panel n the direction of arrow 2 Remove the tuner P C B in the direction of arrow SA GX230 MEASUREMENTS AND ADJUSTMENTS Note For 2201 2251 AM MW LW ANT and OSC coil 7202 AM MWILWMIFT they are sup
26. below 57 When this connection is made tape to tape recording audio ae and video can be carried out simply by connecting a video Stereo connection If deck is not being used the compact disc player camera or second VCR for playback to the VCR 2 ter cables be connected directly dotted line minals of this unit p not included Stereo connection Ground wire cable not included not included 9D OR 2 T VCR This unit This unit not REMOTE d gt a included AUDIO puno VIDEO OUT Connection cable for remote control Included with tape Video connection cable not included Turntable not included OUTPUTO Video connection cable l 4 not included Tape deck not included not included CD terminals Connect a compact disc player VCR Connection cable not included VIDEO IN for remote control Included with compact disc player This unit f i i t t 1 1 1 I V Compact disc player not included REMOTE Stereo connection cable 1 AC IN socket AC IN not included Note compact disc player with a remote control sensor the e compactat 2 4 2 24 above connection is not necessary h player 2 not included 3 TM 4 SA GX230 SA GX230
27. c to be played can be selected by first press ing this button and then pressing the appropriate numeric button Press this button to select the desired play made or CONTINUE Press one of these buttons briefly to move the pick up to the beginning of specific track TUNER co 2 os EZ gt PLAY 2 3 5 Facing toward the main unit Dv ress this button to start play Press this button to stop play PROGRAM MODE Note C2 E When operating a compact disc player with a remote control sen sor face this remote contro transmitter toward the remote con trol sensor of the compact disc player REMOTE CONTROL TRANSMITTER AUDIO RAK SA302E Technics Amplifier controls Press this button to select the VCR 1 input selector on the main unit Press this button to temporarily reduce the volume level The volume level is attenuated by 20 dB approx 1 10 TE Press once again to return to the previous volume level Press one of these buttons to adjust the volume level 8 SA GX230 DISASSEMBLY INSTRUCTIONS ATTENTION SERVICER e Some chassis components may have sharp edges careful when disassembling and servicing Removal of the cabinet Neat Removal of the front panel ass y Procedure m 1 Remove the 2 flat cables CN401 CN601 Front panel ass y Speaker switch He
28. conds again FM mode selector FM MODE This unit automatically switches to the stereo mode when an FM stereo broadcast is received This selector is used to select the mode stereo or monaural of FM broadcast signals 3 Amplifier section for EG area D Speaker selectors SPEAKERS These selectors are used to select the speaker system s A and or B Muting indicator MUTING This indicator will illuminate when the muting button on the remote control transmitter is pressed Loudness indicator LOUDNESS This indicator will illuminate when the loudness button is pressed Tape indicator This indicator will illuminate when the tape monitor button is pressed Volume control VOLUME Tone controls BASS TREBLE The bass control is used to adjust the low frequency sound range and the treble control is used to adjust the high fre quency sound range D Headphones jack PHONES Input selector buttons These buttons are used to select the sound source to be heard such as a disc radio broadcasts etc The selected sound source is shown on the input selector frequency display The PHONO input selector has two functions when press ed momentarily it selects PHONO When pressed and held for about 4 seconds it de activates the muting function TONE CONTROL TREBLE loo 9 Tape monitor button TAPE MONITOR Press this button to listen to a tap
29. e To listen to some other source press this button once again so that the indicator is switched OFF Loudness button LOUDNESS Set to the ON position the loudness indicator will il luminate when listening to music at low volume Auditory perception of sound in the low frequency range falls off at low volume but when the switch is in this position this defi ciency is compensated for so that the full impact of tha musical performance can be enjoyed Balance control BALANCE 2 VCR 2 terminals VCR 2 These terminals are used for tape to tape recording if a se cond VCR is connected here REMOTE CONTROL OPERATION This remote control transmitter can be used for control of a Technics cassette tape deck or a compact disc player with a remote control terminal Consult your dealer for details e For detailed information concerning operation steps etc please refer to the appropriate page for each unit and the respective operating instructions For this system you can listen to tapes or compact discs etc by operating the remote control transmitter without using this unit s input selectors Make sure that the power of each unit is set to the ON posi tion before beginning the operations Facing toward the main unit TUNER CD Bias E 1 5 BE REMOTE CONTROL TRANSMITTER AUDIO RAK SA302E Technics SA GX230 A Tunercontrols 1 Press th
30. important safety notice Components identified by A mark have special characteristics important for safety Furthermore special parts which have purposes ot fire retardant resistors high quakty sound capacitors low noise resisto etc are used When replacing any of components be sure to use onty manufacturer s specified parts shown in the parts list The parenthesized indications In the Remarks columns specify the areas Refer to the cover page for area Parts without these indications can be used for all areas Part Name amp Descriptio Remote Control Ass y Supply period for three years from termination of production Ref No Part Part amp Description Renarks 24 145 1 REAR PANEL muera em z ee VINCI m emus Paw 5 areas Voltage Ad 77 778775 OON 25 17 baer jui mnn pl es a s memi fica aa pm 4 RGUOIOI BUTTON SPEAKERS 30 5 SHE234 COOLING FAN CASE wo Sims emu 5 RGWO072 TONE CONTROLS K EG 30 7 8155215 SOCKET OP 5 _ coos cm won m 7 05 MARE 560 El mu M
31. is button first to use the OFF ON button or the 1 o buttons This button can be used for ON and OFF switching of this unit When switching the power ON and OFF be sure to first press the TUNER button 1 0 Press these buttons to select the desired preset channel When these buttons are used be sure to first press the TUNER button To designate channels 1 9 Press the appropriate 1 9 preset tuning button Note When selecting channel 1 2 or 3 enter the selection O1 02 or 03 If only 1 2 or 3 is pressed channel access will be delayed by two seconds To designate channels 10 30 D Press the button for the tens digit 1 2 or 3 Press the button for the units digit 1 0 within 2 seconds after pressing the first button Note If the interval between pressing the first button and pressing the second button is more than about 2 seconds the setting may not be made correctly n this make the setting once again B Tape deck controls Tape deck controls Press this button to select the deck DECK 1 or DECK 2 to be controlled Press this button to change to the recording stand by mode lt lt gt gt Press one of these buttons to advance or rewind the tape while the unit is in the stop mode Press one of these buttons to select the desired tune while the unit is in the play mode Only applicable to a Technics tape deck w
32. ith alminum foil 4 x Ground the soldering iron Put a conductive mat on the work table 0 Do not touch the legs of IC or LSI with the fingers directly cM E SA GX230 10 11 SA GX230 SA GX230 12 13 14 15 16 17 18 19 20 21 22 EY tuner circuit For areas TNIO1 FM FRONT END SNVFE337GOI 1c 01 0201 202 0204 AF SIGNAL L ch IGNAL i ee ep et ee cg se a a Sa a ee a ss CE DM CN a eee FM SIGNAL ar 2SC2787LTA 25 1740505 a Silk ANE peri 2X SYNTHESIZER FM IF tc201 FM AM SELECTOR L324 e220 R240 e305 us 38 ANT273A C206 15 LSK eal 887 Sn A 5 FM AM IF DET C2 9 R202 R204 F amp MIXER R224 6221 et ns moor arok 47P 20 22K 0 01 2522669 2502995 BUFFER 9251 2SA933SQRSTA LW MW SWITCHING Q255 256 FM OSC 23 JK101 au Nap ARCEWZMWOIBIGNAG 2SC2785FETA FM OFFSET i 4 wf 71 f H 5 LW MW LOOP FILTER VOLTAGE OmV e M 8p 4 ADL LOOP ANT o 3 FM OFFSET 165 So 0301 302 9 2 VOLTAGE OmV ADJ SN x aq OO E es 5 15 54 2SDI450QRSTA Mov 2x 28CI740SQSTA 2SC27TG5EFTA 0208 209 303 VQ BUFF
33. ith the music select functions Press this button to temporarily stop playback or recording Press the playback button to resume the playback or recording Press one of these buttons to begin playback or recording press ing the button corresponding to the side of the tape to be played back or recorded gt For the forward side of the tape 4 For the reverse side of the tape Note Depending on which Technics tape deck is used in combination with this unit tape deck 1 might be the A side playback only type Press this button to stop tape movement Note Depending on which Technics tape deck is used in combina tion with this unit the pause of the playback and the recor ding and the recording functions of tape deck 1 might not be possible by using the remote control transmitter SA GX230 Compact disc player controls Press this button first to use the 1 buttons Press these buttons to select the desired track Playback begins from the track selected When these buttons are used be sure to first press the CD but ton Tracks 1 9 Press the appropriate numeric button E directly To select a two digit track number over 10 Press the c3 button the necessary number of time to select the tens digit and then one of the c buttons to select the units digit E If a Technics multi compact disc player is used in combination with this unit the dis
34. onnected to 2 R motor control terminal 42 resister worm mmj Not used ie 185291 4062 4270 se ot used open A Key scan signal Ca 45 KS3 5200 T QA caog bi jo pd P2 Cathode MW Level shift control terminal cone i 22 ST3 Not used connected to 6 DGTO Y P A A A pd les w m EATERS y i resister PU Digit signal to FL display i cs 2 rep RI enone Angos l 4 INITIAL Serial data detect terminal di 5 OFF Cathode Ca R Level shift control terminal Not used connected to ST2 resister 20dB Reset detect terminal Serial clock signal gt JL N 2 m 0 i Segment signal to FL display CK1 2 8 o SS 32108825645 8 1 GIGIC 1 3 DT EN 070 SN icu ps 0279 o gt N BU 0 4 wu lUi NU i 79 Oz N CZ Oz O CICIC AGISI4 1312 ICICIC NOTE 1 2 Filament 2 NP ee No pin ar E eee No connection Nr 4 16 86 Grid aede 7 op i a rus j nell toad 1 2 3 4 5 6 7 8 9 REPLACEMENT PARTS LIST CABINET PARTS LOCATION 26 Notes
35. plied as adjusted parts So do not turn the cores of the parts is not necessary to adjust the AM MW LW circuit FM ADJUSTMENT Control positions and equipment used FM signal generator FM SG Frequency counter Distortion analyser Choke coil 100pH DC electronic voltmeter DC EVM Resistor 100 kQ Remove the motor cover by used screwdriver Refer to Fig 3 4 Remove the motor from the fancasing Ref No Removal of the power supply P C B ner NO Removal of the power transformer ner No Removal of the cooling fan motor 11 12 main 16 Procedure Procedure Procedure o 12911 1911412 1 gt 9 gt 16 Refer to Fig 4 5 When mounting the motor fan align the fan 1 Release the 3 claws in the direction of arrow and casing s projection with the hole of the fan motor remove the fan motor Refer to Fig 1 2 Insert a screwdriver at the root of the cooling fan Force it out of the motor shaft Refer to Fig 2 transformer Cooling fari main FM MONO DISTORTION ADJUSTMENT FM SIGNAL GENERATOR CONDITION Test equipment connection is shown in figure Modulation Set the unit to FM position Set the radio frequency display and signal generator to 100 10 MHz T Adjust 201 core so that voltage measured in signal mode is OmV 0 20mV in 300mV range Adjust T202 so that the distortion factor of Lch is minimized EM ET Repeat step 4 and 5a fe
36. r transistor Apply silicone thermal compound RFKX0002 or equivalent to the rear of the regulator transistor Removal of the main P C B LET Removal of the power IC Procedure Procedure 125259 152 910 position Stereo ON positlon indicator lighting Adjust point of Pilot circult 1 Remove the 3 screws Rear panel Adjustment points a Please refer to tuner P C B on pages 27 28 TH Teel a UEM SD SM GNO E 44 Y 750 Unsolder the power IC FM ANT 1 Remove the 2 screws 2 Unsolder the power IC BALANCED TUNER P C B Front panel ass y When mounting the power IC 1 Remove the 1 flat cable CN702 A Apply silicone thermal compound RFKX0002 2 Remove the 6 screws Q OQ equivalent to the rear of the power IC 3 Remove the 6 screws D 5 Remove the chassis ass y 4 Remove the rear panel the direction of arrow 6 Reinstall the front panel ass y to the main P C B FM offset FM coll OISTORTION Hh 12 ue n 13 129 1202 d T i SA GX230 SA GX230 SA GX230 B BLOCK DIAGRAM AM6558F FM MONO DISTORTION D D TP201 TP202 ra0 200 sl PHONO EQUALIZER AMP Jj Js TC9163N SA ESIN C T F 301 R314 Qe a na C 401 a b E ji
37. rea 5925 ES ng 5 rn 929 936 Tuning TUNING switches 2 n s e d e pA AL M e AE IE E FM EEI UMTOO 0201 202 0204 AF SIGNAL Len 8929 DOWN 936 UP 5 JEN Note mark short jumper is used 23095 p 2352668 wis Se emeouence dag inda us cee po MIS 5930 931 A NE do nr x mark short jumper is not used m P EET Ber 88 ANT273A m C206 15 1 932 Band selector switches sl Fi m ig 5 Lo que ee ae ezea 2 M or E areas J 2s 933 FM mode selector FM MODE ewitch as cs E C s 5934 Memory scan MEMORY SCAN switch 5935 Memory MEMORY switch Signal line pu ae i FM OSC signal FM signal AM MW LW OSC signal aamulp MW LW signal E Phono signal s 1 AF signal amp 0 6 OFFSET o m Positive voltage lines 6 VOLTAGE Negative voltage lines y Ow uo cft vip diti I Important safety notice Components identified mark have special D characteristics important for safety When replacing pe any of these components use only manufacturer s Specified parts Indicated voltage values are standard values for the unit measured by the DC electronic circuit tester high impedance with the chassis taken
38. that the heat radiation vents remain unblocked Red R This unit TAPE PLAY IN Speaker connection terminals D AD Stereo connection cables E not included 9 Voltage selector VOLT ADJ for EB areas Set the voltage selector to the voltage setting for the area R D dR which the unit will be used Tape deck 2 Use a minus screwdriver not included 3 LINE IN LINE OUT This unit Remote control OUT terminal Note l REMOTE CONTROL OUT Note that this unit will be seriously d amaged if this setting is not D Antenna connection terminals _ VCR 1 terminals This terminal can be used only with Technics components made correctly Connect a VCR which have the appropriate remote control terminal See the operating instructions of the VCR Consult your dealer for details 2 PHONO terminals Proper connection with remote control connection cables Connect a odi Do not This unit SJP2257T will allow conirol of some functions from this unit s remote control transmitter See pages 7 8 for VIDEO OUT terminal source to these terminals ai details Connect a video connection cable not included to the video cope input terminal of the nem connected to the VCR 1 ter _ This unit mR Connect to a tape deck and or compact disc player as shown minals
39. w times Make sure that the distortion factors of Lch and Rch are nearly the same with each other to minimum Power supply PC B 1 Remove the 1 screw 2 Remove the 1 flat cable CN702 3 Remove the power supply P C B in the direction of arrow 2 Removal of the regulator transistor Procedure 1 2 13 Remove the 2 screws Remove the 2 transistor holders Lift up the connector in the direction of arrow D Remove the regulator transistor in the direction of arrow Note Ref Check of the main P C B Procedure swhen checking the soldered sur 1 17 faces of main P C B and replacing o the parts do as show X f Front panei The adjusting screwdriver used should be made of resin FM MPX VCO ADJUSTMENT FM SIGNAL GENERATOR CONDITION Test equipment connection is shown in figure Modulation Set the unit to FM auto position Set the radio frequency display and signal generator REGUENEY to 100 10 MHz QU ENNA COUNTER Adjust VR301 for 19 00 0 03kHz on frequency counter reading gt 3 i X USING ALTERNATE SYSTEM 1 Apply stereo signa from generator or receive the stereo broadcast 2 Adjust VR301 until stereo indicator lights up Stereo OFF Cement arm of VR301 as shown in figure When mounting the regulato
40. y and Italy 5 ll FM TUNER SECTION Frequency range Sensitivity SIN 30 dB 1 5 uV 75 Q SIN 26 dB 1 3 75 SIN 20 _ 1 2uV 75 IHF usable sensitivity 1 5 uV IHF 58 75 46 dB stereo quieting sensitivity 22 uV 75 Total harmonic distortion MONO 0 2 STEREO 0 3 S N m cd MONO 60 dB 75 dB IHF STEREO 58 dB 71 dB IHF Frequency response 20 Hz 15 kHz 1 dB 2 dB Alternate channel selectivity i 87 50 108 00 MHz 400 kHz 65 dB Capture ratio 1 0 dB Image rejection at 98 MHz 40 dB IF rejection at 98 MHz 70 dB Spurious response rejection at 98 MHz 70 dB AM suppression 50 dB Stereo separation _1kHz 40 dB Carrier leak 19 kHz 55 dB 60 dB IHF 38 kHz 50 dB 55 Channel balance 250 2 6 3 06 1 5 Limiting point 1 2 uV Bandwidth IF amplifier 180 kHz FM demodulator 1000 kHz Antenna terminals 75 unbalanced SA GX230 TUNER SECTION GENERAL For E EB areas Power consumption 260 Frequency range du 4 Power supply MW 522 kHz 1611 kHz 9 kHz steps For E EB areas AC 50 Hz 60 Hz 230 V 240 V 530 kHz 1620 kHz 10 kHz steps For EG area 50 2 60 Hz 230 V LW 144 kHz 288 kHz Dimensions W x H x D 430 x 125 x 305 mm Sensitivity S N 20 dB Weight 7 kg MW 20 uV 330 uV m LW 45 Selectivity 9 kHz REMOTE CONTROL TRANSMITTER MW at 999 kHz 55 dB
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