SERVICE MANUAL
Contents
1. g 5 zar KEREN BERET 1 9 circuit or specified in the parts list 8 og l M 1 s Y 8 i af ta 9 6 8 8 8 E x E 6 H 5 az 8 0301 EAT I 184003 ane rao caso Y Ege 58 0302 8s 2 126 BLU TY ec l t 2 184003 i GNO 5 ae BRN RN IAE SB Ans froma Y b A 2A 125V 8001 8 1 00309 0 Ls DA S15VB40 M ce PRD 187 RELAY DRIVERI mod 188 is 8 ru 2K MR Hs T RELAY DRIVER Vae 100k BS S58 Bus a KERE e21 faa EE TC301 Raoa 1 i 24 k E 8 318 A L GNO R QND 15000780 Ake s 28 TA7317P 012 3s 4 1 caso7 EEA ZN F303 T ez away T PRISH 0306 4 8002 FK e 2k 8 8290 2 Koni S15VB40 Otte e p Ex 13K R307 R313 few E AKE 47K 7 SK 8 5 vili 989 EIL oR oH 9 5 GRY Paid a CB304 CIRCUIT 308 i58 8302 uar 3 kworo 4 22 me 88 t Ko Kani DISCHARGE og vor rag me 1 ee ED S CIRCUIT CRT 3 EID 5 2 3 18 88k Nero 1 ker M12 2Ki2 c8308 OPR 3 GND A CB8305 POWER TRANS 2 fr 8 GN Bod so REGI 8 na cats 88 Six f 1c302__ REG 1 T esol rower switcH co 6 d 50 NJM78M12A EUM FUZE amp I OTT m 12V AC POWER CORD 920 aa Q9 ee ane XPRD F901 ga 204 250V H I T E A i I Maes pans T 120V 60Hz2. Meosuring Meter Digitol Volt Meter Measuring point reference Between Ground Meosuring conditions No Signo Input Terminal Voltayge 0 5V 1c302 12 1V E401 Terminal Speaker a EE aL Hoe x 1 1 mmm 55 0 1 ig 3 LT 558 C8 QN 1 Cen i CBA401 1 Aik 1 2 3 z9 kan 3 e 3 ano H ji 1 H 1 i E402 tmina Speoker pui Eee I jed R408 I 10 3w 88 R Eid az m uu e E a2 iI GR t 1 Lad I c8403 I amp ikrr m 1 w I it 2 KC I E dedil 8 1 b ger i en E N e ano t gt L QND R QND CAUTION lt B GND 8 The nork the symbol NO in a box In the aus m schematic diagram and the shaded area in the 1 1 l dAd parts ist designate components which have E 89 t4 8 specio charocteristics importont for sofety E E 8 l Po ES POWER SUPPLY P C Boord HEC EVI Um
3. LD852 S R S4uca I 12V olazo N Q202 a at a RAE coe BTL fo BTL 2SC2291 I Q105 Q106 Q127 Q205 Q206 Q227 0125 Q225 Q108 Q109 Q208 Q209 Q12 Qi 2122 8 azo 9 0 0228 uzsa 0219 Q123 Q120 Q124 Q113 Q114 Q116 QIIS Q121 211 Q112 0118 Q223 Q229 0213 0214 Q220 Q224 0212 0218 0216 G215 0221 Q117 0217 THERMAL E g 8 PROTECTOR ok af is amp 3 p 4 e ee 8 38 HEN Eri ST Es H Risa Tad za EM 108 599 e 2841335 Q106 Shy T7008 conos pA A 2sc3424 9 EM PE ET CLE C 1 1 1 1 de Her 1 C8401 e rs R78 240 CLIPPING TNI DETECTOR ERMA 2SA1006 TAR DRIVER PA Bh BU 128 9038 110 902 i azio 424 282338 9228 336 25034241 po mmus AMP N 80ARO DR VER DRIVER R N P C BOARD DRIVER R P P C BOARD L t Lis TO C82 8 ER L CE wu 8 GND 8 BTL NF GND SP a eL ener 8 GND 8 3 RIVEF J PR lt FAB 211 A Fil a SA1006 F25 L GNO R
4. Ho n OR I CHSO2 e c input Jack i E PETER i ARM NF 1 1 l yy J802 2 Cy c mee 1 NO 1 c 5 rag 1 R iN GND GND BTL NP 1 28e 258 T i gt E d i I ceioa 1 I 3 20102 7 H2271 22k deg 3 k ea Wr T lg p WR lt BTL NF e gt ti F48 2 8 i eru ano oi Fil 2 36 0128 XL GND es F25 Ss 25411 FO PED 2 Qi 1 lS DoHonrd DRIVE LED P C Bourd PRA pum ES SLR 54VR3 MAIN AMP R P C Board 1 RUNE RR E Be wasa uasa a853 21 89 Le P L ojete UN1213 Se ohkim ei vol Sai io cLIP R o 330 Q851 82 i EJ J 4 j pe UNT chest 020 3 204 9 3 i veo rmm 28A1208 t 2841208 1 Tem 0 19 i Lm I m olch amp gs i Ses I i 4 4 4 1 R288 209 Q854 RAY lt oa 2 UN1213 1 D B ED I ae nase SU Bord A 2852 jg UNTT13 2 NI 3 E i g 1 m m Wi 38 6 i ua xe i g 1 i20 9 49 4 zv iP dt i Be 8rLo o o pos Het UNTTI3 1 5 Ce P ces 5 I WIL 0PR 4 o kon oH
5. FF 1 Idling Adjustment Figure 7 8 and 9 Adjust VRIOI VR201 so that voltage between TPI TP3 and TP2 TP4 reaches 4 0 5aV M 117 Adjustment Locations 5 eos VR PLA eae Figure 8 Main Amp L P C Board Component Side TA Q ARG J NZ BSE ARS eg Figure 9 Main Amp R P C Board Component Side Block Diagram B 82 L CH AMP a ee SN pen FINAL STAGE T 1 Ist STAGE STAGE iugo i VARIABLE L CH INPUTS E401 FIXED OG 502 1 TERMINALS H 50 2 x j R CH INPUTS H b L FIXED j DRIVE CLIPPIN 502 2 INDICATOR E BTE R CH AMP 6501 os Ls en gt IMMM S01 F901 AC120V 60Hz PO1 AC POWER CORD Schematic Diagram Transistors Q101 9104 Q 0102 0126 0107 Q203 Q204 Q853 Q851 0201 0226 Q854 Q855 Q852 MAIN AMP L P C Board 1 1 1 1 INPUT P C Board pueri Er aes Eee E 1 1 l 1 C121 1 1 50 i LIN GNO H ay E s Rig R103 330 Sites 195148 220 100 T o 3 8 9501 1 Qy wee i el I ize ar melt T dle a TI 2 2 2K 3 i Sa mi 3 AT MAG s
6. GND lt lt FO 229 SA1361 B GND 8 gt 9809 GND 80V i Q204 2SA 1208 CONSTAN Hg NT 8 GND 8 PRT B C E 80V GND 80V gt PRT A COM amp 1 1 1 1 I i y THERMAL 3 ARD B 8 CB308 Le g PROTECTOR R252 oe R288 ae Mk PR Wy 2h 54 Ead 38 52 2k 8 4 au as Bs z 1 ag c att z 3 OM lt ge Iz 8 t T deor T E ga 13K R230 R23 R232 3 2 2K 3 3K 3 3K by Re ye J 3 55 T S4 b ga 1 08307 Lus vo baa 3 de ken 2841335 AN 1 Jia ic TO CH203 R255 i 3k c 13k sae tk 4 L3 STc Tt i i eo zB i 0219 0220 Caa 28A1216 2SA1216 i 3 KNOR 9 2 KaNb R246 8 R257 28 18K z 0207 s E 182471 vy eran ay g 3 koe 4 4 38 TR 8 Wi P c 8oang 0218 08305 4 p 28A1358 Ls GNO cH303 CLIPPING TND GPS THERMAL B DETECTOF r JETE IR 98 5 TAM 5 F a L C 53 Serna NOTES l Al resistance volues ore in ohms K 1 000 l l 1C301 1C302 2 capacitance values ore in microfarads P TONO Voltage Meosuring Conditions SPEAKER TERMINAL P C Board Power Supply Voltage AC 120V
7. SERVICE MANUAL Stereo Integlated Amplifier IVi 17 REVISED e Serial Numbers after No 81210651 A for M 117 North American model Concerning the contents not to be given in this manual refer to the service manual 68P92578F02 M 117 Semi Conductor Lead Identifications MUTE 8 COT AL Power On Off Detect Circuit Over Current Detect Circuit Discharge Circuit DC Voltage Detect Circuit Regulated Voltage ircui TAT317P 1C301 Vcc NJMT8M12A 10302 OUTPUT 1 Output 2 Common 2 3 Input 284995 Q101 201 28C2291 Q102 202 1 Emitter 1 2 Collector 1 3 Base Common Collector 2 Emitter 2 ed es 29 1208 0108 104 208 204 COMMON 1 Emitter 10 2 Collector ds 3 Base JJ 4 4 Removal of Main Amp R P C Board 1 After removal of Heatsink R remove twenty tow screws marked as shown in Figure 6 NOTE Take care of handling each transistors when removing the Main Amp R P C Board 5 Removal of Heatsink L and Main Amp L P C Board 1 Remove in the same way above mentioned Heatsink R Main Amp R P C Board Figure 6 Adjustment Procedures 1 Connection 2 Control Setting Attenuator Left e Minimum Attenuator Right Minimum 3 Adjustment Procedure TPI TP3 9 TP2 TP4 o AC VTVM Figure 7 Power Switch ON Others eee O
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