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6. VEC PCB 07 7349 2401 7 CH1 E LIN na 7 HGB768037 MIN
7. SPEAKONCHI CHI z BRIDBE HGB768024 CH1 750W AMPLIFIER MODULE MIN BOHM HGB768019 INPUT amp PROTECTION x 12215 z B n x 2 ME GCLO BOARD 2 M eT SPEAKDNEHZ N D THERMIC SWITCH 95 3 r AIRPAX 671095 OFFSET 1p 0205 1 a 5 1 1 1 1 1 2541837 o 3 ADJ E EXE E x x IE SIE JR 7 Nae gt BIS Be PEE PEE 2 lt 3 2 ES 2 95 x A 5 o w N 1 0410 144004 1 a210 N E 5 a 53
8. CHI MIN 40HM 2 SPKBRIDGE L HGB768019 INPUT amp PROTECTION HGB768020 CH1 1100W AMPLIFIER MODULE ve s ts 1 z 21555 BRIDGE M x EN m ARERR on etl IREDI MIN BOHM 2 BOARD 3 a 5 m T x N E Q 2 2 E L2 THERMIC SWITCH 95 0214 a216 a218 a220 0222 0224 0226 0228 a230 AIRPAX 671095 MIN 40HM zsc 28C 29 2sc 2sc 2sc 2sc 2sc esc ru EIE 5200 5200 5200 5200 5200 5200 5200 5200 5200 ewes OFFSET 11 0205 0206 yt a gt i 1 1 ADJ t 2541837 2541837 r 18 m 2 in z z z z z 2 20 8 sla Al EU lt H eT is eds EAS lt L gt Sis EMEN Tag 1 0410 144004 St E 2 o o w s o o e 612 1 LZ 0210 N E D n R 7 4 4
9. SPEAKONCHI CH MIN 40HM z SPKBRIDGE zi HGB768019 INPUT amp PROTECTION HGB768022 CH1 800W AMPLIFIER MODULE ee a ud BRIDGE M N x BEERE EB 1 pepe esos BOARD all l 2T T H 2 n oT 5fz Es STE l CH2 5 141 THERMIC SWITCH 95 ene amp 0214 0216 a218 0220 0222 0224 0226 0228 AIRPAX 671 095 MIN 40HM N n E wo 2sc 2sc 2sc 2sc 2sc 2sc 2sc 2sc ala uN swe 1087 LL 5200 2 5200 5200 J 5200 2 5200 J 5200 J 5200 J 5200 J WIE ross g9 ewes OFFSET 1 azos 0206 5 i A i i i 1 LE ats NJM4580 ON ofr ADJ 25A1837 2541837 ui sis z ojo a 4 D 2 2 M M S M M x one gy PINE ale Veit sale ut ejt velt pei vei oy 9 eja A IN 2 1 D410 1N4004 s Fo m E m x R5090 9 te 5 KK XS 8 R N 8 K R 5 HGB768018 Em cass
10. SPEAKONCHI CHI MIN 40HM aye ae HGB768026 CHI 6525W AMPLIFIER MODULE ee D HGB768030 INPUT amp PROTECTION Are n S 824 B c Y sos BOARD on T Q O sreakoncH2 THERMIC SWITCH 95 ae 100 3 8 AIRPAX 671095 4 o T CH2 SHOE Sae 8 2 lI N n z wo c pr MIN 40HM EE 8 8 OFFSET 0205 0206 a 5 oo V59l 8 2541837 2541837 T 8 7 3p E v T f AL ER ole Ser E Sen E Sep E er R 5418 gt om als wR wis ZIS ec is Sim 6 ome A 5 2 o o s stom 8 Asean 1 D410 IN4004 gt a Lt 0210 N z n a 14 25 5198 4 2 4 2 D 70 50 4201 HGB768018 2404 aa ae x 2 0203 i 3 3 12V 2N5550 1 5 FRIO7 Y 4 2 2 4 R315 2 0404 7 7 Bi E 4 4 4 R404 3K3 cz 10u n w gt Jeufs zuja v DISPLAY BOARD A oes WC pL DU men 8 2 La su si SIS 9612 lew Lh e 8 leu 2 ots A 5 vocal 56K DE u sov wl Z o wj o N 2 fe 5 moe ma PER x 212 SU Ss RU aS SL ss 2 ER Rz28 SE Lmt 25 HINI 3 2 2 2240 BIBT BT 9 T 2j ST 2j amp BTE 3 al nmo C204 E em oum Cz408 if Rls gle 8 mutne 2 reL av E Bp UT 5 Al AL C2
11. CHICFAN SPEAKONCH 2401 LIN rao a INPUT PROTECTION DRIVER BOARD MIN 40HM oi HGB768033 375 375W AMPLIFIER MODULE BRIDGE 240 2103 svec 2 jw RIN CH2 FAN t u zfs al i 12VE ap 8 sis REDI Sn 222 SPEAKONCH2 gue ih g g 710V N 2 THERMIC 4 ana ans CH2 als SWITCH 85 c 7 2st So AIRE AS pe gt 5200 2 5200 2 iacu 2 72 cz4o2 57 995 czs 8 zoo 3j 0205 0206 alz 1 USO J401 A z Us t 25 1220 25 1220 uU 8 NJM4580 1 1 u eja x x gt 5 z w201 2 2 I x 30 3 EMEN FEES 3 OFFSET 1 9 R212 2 CZ203 czio3 2 2 D2044148 3 ano E E M ADT T E t 25C2680 3 12V 0 51 E HGB768018 x i y paa ARD 227 pen tuns aes 5 ESI ene ce zT DISPLAY BO 8 i p 2 sleet s Rl Yir 8 svpcal3 S6K O 4 N 4n Sn Slt gv 548 L 4 y 2200 Nor Ng sts cll n LIMIT E san C702 15 Q EL N m n x 2 R145 5E S In E zo IH x EI 25C m ETE m zx F c 4 3 alls E eT erm a al BL Se EL pg ourz zit 8 IMuTING RELAY C708 100 R725 68K gL SEDE C215 100
12. On CH1 MIN 40HM BRIDGE MIN GOHM HGB768031 INPUT amp PROTECTION HGB768028 CH1 500W AMPLIFIER MODULE 15515 12V x E 5 8 WERE Y 12V x 3242 x E IREDI 2 BOARD sl a a 5 T or g e N oj 9 THERMIC SWITCH 95 0214 0216 218 0220 AIRPAX 671095 zsc 2sc 2st 2sc MIN 4OHM ru 5 5200 5200 5200 5200 ay OFFSET 80 0 1p 0205 0206 wq a gt i 1 e a ADJ T 25A1837 2541837 iz 38 af arp ple Nes Ssp wen ST ERN 7 5d 1 D410 IN4004 St RT FIEL 78 2 i g 612 ta 4 n 3 M N 5 1 HGB768018 a404 paie naoos z z ud 250999 Mos E E 2 nra DISPLAY BOARD 3 poe tse ait 2 ch T Ier Rs Seo 4 4 12 3 vcc evocr 2 4 N 2 212 100 T uw ufa w 2 4 1 3 5 5 2 LE x4 eh ba Slew ba slew bas LMT X Bos gc 24 8 sovi al wl Pos af Fe of Pe 9 n Ai E 1 E ssl elas elfes 5 2 els NT 5 mmo 25C2240 NT N NT N NT NT N CTs 5 sls cz409 C204 E T E Ej g c j amp ij 5 Sz Dan IN4004 I 81s 4 Em cz4os 2v 5f MUTING RELAY 5 ed 470 C209 27 iN 0205 FRIO7 L201 A R 5 D413 1 4004 4 95 fab 2 1L al 4 4 a Le S a 4 14 Ils 202 3 2602240 R218
13. 8 8D a 8T ET 2N5550 1 2 Es 0203 3 788 DISPLAY BOARD PECES purum 8 cn Y ete P pA SYES 4 4 4 4 4 4 uv VCC p 0 1 2 a b 2 czi2 10u n w su wf 1 E 2194 5 zty ERE zu SEK J 2 bine law bio law law bio law bao aw bao NU bi 1 s LIMIT 9 at E PER 9 m aie Ws sovinl Z of Fae Poe s Fe xf Pot of Fat wf Pot al Ps 9 Ai 5 x SU Ss RLU aS SL ss 2 alas sU SS Sus Rage set gue c204 2862240 e g amp 2 amp amp EJ ej el E l 1 ilz 5 S 0411 IN4004 Cz409 I 1 l 4 OW OUT e 0413 IN4004 l E 25201 2 1 2SC2001K al rm x Le a 14 Is R20 C202 tou inim R2 8 3 0206 FRIO7 s om g 5 L3 44 e z z oe 215 x 18 2502280 2 was gt IMDIEMFPEIEMEDIEMEDIENEDIEMEEIESEDREMEEIREME R R314 330E L310 U302 EER 5 c E n 119 N D 1 zu C208 100N 254970 ane et et ot to s a 5 Bs wie 2 1 7 9 2 et M No c213 tou m in ze Fee n Po al aj Tn Ia n ag nj fo gt 3 e 2 DECRE 2 sys i 2 4 ST RT AT N WT NF RT AF NT ST NT NF NT N a Bo E S vcc cmRouD sole E e 27 e 21 ET El ey 2 f g
14. x x z 2515 XLR INPUT 5 csos 470 a EMEA m zT E T fT BOARD z 8 2 2 R 12 L2 amp 80 0V THERMIC SWITCH 95 C501 47URSO Ski 02148 02168 02188 0220B8 AIRPAX 67L095 IHL x NJM4580D 5 256 2sC 28c 25C uS p 2 5200 5200 5200 5200 5 5 CH1 a amp OFFSET 80 0V 1 az068 1 a e t A t m v ADJ len 25A1837 28A1837 aje n 2 of M E ME RIF x E 2 iL 5 oF ale 4 yale yal F 2 m a m m 5 S zw INPUTS C604 100P 4 RT 1j 8 2 mi 1 25C5198 N N hi R604 3 x 2 5 FOTON t 1200 2 416 C602 47U R602 SKI 2 3 25 2001 4 3 4 1 4 2 CH2 5 3 s Ro la Su las 8 5 2 5 a 2 Am 9 lew law bin 9 law 2 m a Fas offos af FoS a E 10 CZ403 263295 3 SU Be ST Se 30332 R22685E1 PCB HO7 7347 JK601 2 TE E i wily 4 c cic 4 4 c b CERT a7 0801 2098 27 02058 L20181UH IH NJM4580D n 2 4 958 IH an 5 S azoiB 2SC2001k all TQ ur EC E e R2016 1K c2028 100 2uC2240 R2188 27K ES 02068 FRIO7 5 E x tet 02028 PIS gt sufz Ixufz xu m E N 25C2240 92138 Lo NU Lip o NU lis g 1 1 T2088 254970 N N N N cz138 10u 8 2 8 pa al a H 7 2 2 ype 8484 sl ne sU aS sh se 0409 134004 R402 120K olja 0 67
15. lt R202 5 C202 470 1 N 0212 3 HIER n M m i m 25C NT T AT HT FTZ R245 SE HGB768015 1 SLE 22 7 gg j g o z N n 1 Rls INPUT g 470 C609 100 R625 68K 0207 4148 2 4 BOARD 3 T Nas 226 3 v suas DS IGRNI R201 5k C201 47U U201 tte aie Ws PL sr z9 4 1 1 NJM4580D Lu a T _ SIN 254970 hes Soh sen 5 3 Fe S t sse sz S 2 5 z HE g TP Mo 8 E n 2 5 Le in 2 sviz e elg E 3 9 x 8 2 R507 47E rae m 3 0205 y S GNO N 1 N INPUTS E s S 104 100P a502 g a 4 S SAIUSU UN 1 239096 R505 10K E gt R516 R614 100K gt 5 8 2 M Q R104 Ski 3 2 ri 9 5 H 1 E 8 918 pa 5 Ri02_SK1 C102 470 E T on E 3 2 10 2 1 2 2 g 8 CI05 470 m L__4 azs 2 a217 1 25 25 PCB 07 7347 R 3 1941 1941 SK CIO1A 470 5 4 Nh NL 1 NumaseoD 18 3 C505 N A 2 05044148 1E 5 a S NVCCI Bi 100U t 2 R617 4 4 4 4 R618 C608 IC 1 11 VCC WEL D408 134004 R402 120K 0605 4148 7 100U 14 Le 5T NJM2068 sis 12VF ER x E zem UV E er I 0401 144004 i 3 4 8 z 1 t n _ out 1 A 12VF E 0402 1N4004 GND 12V E a gt s42 gt C50 z 3
16. 7812 8 Di 1N4002 R2 00E 4004 MEI E 4 um 8 a z o 0402 144004 ze 2 FA Al 28C2240 L o 2 N E Ef 92078 ipm 1 jojo 5 5 2sc4793 SS C sls ES 2 4 ey mu o N 2 e A 2 2 o al NOTICE REPLACE THIS Susa U402 sie ays 2 3 A CIRCUIT ENTIRELY omy 7912 5 Ts TIU E E 4 Lefi Mour 318 TEE R1218 10K 2 Y R1058 A GND S N o 10K n 4 3 z A Big 72 pos Wi 2 C1048 470N E 8 5 ELLE amp 9 230VAC a RI 40E 144004 NJM4580D D1038 PCB HO7 7462 2 l 2 Ar 4148 x x E m E m N lt Q 3 PCB HQ7 7365 SVAECRED a 8 a P 4 8 EAR A VCC IREDI A 2 gt ojo Smo MAINS EU 230VAC 0 50Hz 5 3 UTOA oo 4 73VAC RED n HQ7 74151 ON OFF E 4 IPCBA HQ7 7415A BLU o 18 TRANSFORMER an acu ge NOTE ALL DC VOLTAGES ENCLOSED INTO SQUARES ARE 5 MEASURED IN STEADY STATE WITHOUT INPUT SIGNAL 25 C AND NOMINAL MAINS VOLTAGE SUPPLY Y VCC IYELI DWG 550829 scm GENERALMUSIC S p A ITALY 16 03 2006 SCHEMATIC DIAGRAM Procon 1500p ALL RIGHTS ARE RESERVED NO COPIES OR REPRODUCE THIS DOCUMENT WITHOUT WRITTEN CONSENT GENERALMUSIC OUTPUTS
17. 5 Bak Doa R105 10K Nj 2 M o DI L 1 I amp R305 330E L301 i SA M omg H z oj e gt a 0414 1N4004 R413 10K JL ol ud LE UE S X Lo 1 C105 1000 RI23 10K 5 Ria 10K dioi ms i S PCBS 7 24021 0415 144004 R414 10K R415 0E0 gt 0206 gt TERA Bare 2 H 1 10 2N3906 3080 t al 454 1 denso in ARP EM RETIS Y 3 on DIOS 4148 RUB IOK RIOS 22K CIO315P R107 47E N x 235551 2 5 12 NJM4580D 5 n HGB768017 DE b Ut03 E 2 STATUS BOARD E 2502590 ret 5 amp T i NJM2088 5 eve 10168 nso 2 Yel di ls 5 mE POWER i Pets R510 C513 470 STEREO te C it M 14 i so bi ODE aie 4 1 o BRIDGE t 5 I 4 2 2 C107 100N 8 7 8 8 B mE Te OS 3 czv z 95 1 toa EER ea e 7 NR R503 KK2 DE NIM4seoq 3080 NJM2058 NJM4seo 2 1 PROTECT e Le 1 H 4 4 4 4 5 PCBA HQ7 74441 czan NJM4580D 74 12v s PCBA HQ7 744441 3 Sw2 1 IPCB amp 07 73671 3 dD E arsena cso 100P 35 BRIDGE MODE 1 Y zis J RSO4 5K11 PVCCIB EE 502 47UR502 Tod CH2 1100W AMPLIFIER MODULE E F L3 2 HGB768016 1 m o gt v x m EREN XLR INPUT 5 505 470 a al a o a BOARD g Dae co a 2 2 g o in 12V T T 4 oO B THERMIC SWITCH 85 c C501 470 R50 5K11 0501 M 02148 a2 68 02188 32208
18. E NIS 0107 4148 2403 save x Ranz 20201 2 H T S 4148 E R225 22K 4 8 B R206 K5 207 2502240 mom A C302 tou Pw Ts p s zT 0202 H t ans 3 o zu zs IE zi 2 1 SEN 262249 ow 254970 PSs amp U302 144 IN E e ho TU SEN 59 011 o a R314 330E L310 5 ps x18 1 t 5 2 oS t 25551 2 Japs 855 2 50 o gt 2 5 ML l 1 DISCHRG TU 5 C703 15 S8 0 67V o ze g zT 8 a SS E 7 S 5 vcc crouno 4_ 5 o n 5 4 4 R313 330E L309 4 WOUT K FLS x a 2 2 p 1 A y MTN GND2 p4 gt x z z N 2203 4148 1 x n UIS see es h gt aS g R224 Ke sy am ole B m 1 5 x 4 4 wis EMEN G gt E gemg METER eae 5 2 0702 0705 3 A E ate K 2saizz0 La E we 5 J 1 g 77998 R714 100K 3085 2 5 518 P 3 E w R3 330E L307 2 Iw S 3 2 a701 R709 22K Dw701 gt 43 0V aj n gt d Pi 2 le 12V 3a at m 2N3904 1 2 2 ES 3 ele 2 B8 2v 5 I amp L305 ias E 1 E Y Y 5365 odd 206 a C301 100 2 5 AC 0701 25C2240 25 2240 4 ans aw 2 6144 8 1 1f a207 azos o 254 254 a R309 330E L305 we 2
19. AT AT ST S NT NI AT 81 AT 21 AT 81 ATAT S 5 Z lt q NIE E 3 02098 zig ze tLe 4 E cl 8 x ix J 25C D2048 SOFT START 2 8 see 2 2249 Fior Pos Lana z z IE amp E C512 Neg 2 E 1 ais 0 50 MES EE a MIR MIA E M BOARD tz alse 578 n a 9 2541943 ls gis LENS Ss 5 511220 n ole E Y R217B 15K alg m n a al a m 12 57V 1 9 z 213 E N a ra 2 x 2 A S S A Di N4002 R2 100E I 0401 144004 104017812 4 sz 3m Bt 3a 3a 3 OB T T TOC a Tz 02038 02048 d 8 D402 IN4004 Iss GND l eile 2 ney She 2902240 2862240 Lig azise 2 02178 02198 2 02218 2 02238 02258 2 a2278 2 02298 2 Sees QT nn 1 1 02078 azoss y 29A 25 25 25 25 25 28A 28A 2191 zm 25C4783 2547939 3 1943 1943 1943 1943 1943 1943 1943 1943 zs e s S 82 8 eL 2 NOTICE REPLACE THIS N 2 uaoz K S g Jom a n CIRCUIT ENTIRELY TISA 0403 1 4004 3252 s N STE BTS 7812 j E o 0404 IN4004 GND Ix d 4 42 Pour Be 2401 R1218 10K 0407 1 4004 1 3 12V 58 R122B HW R1058 14VAC YEL 3 t gt 4 JIN _ our Er cit RHSB 47K DI04B 4148 x E A D406 1N4004 GND 3 jl Db a F2 Ti6A gt 53 utos 2 gos cz38 R117B 10
20. gt N Sjo UF RIO SK 470 tav Re2i_toK N N 9o NJMASBOD R522 05 al N NVCCI 5 z g 06044148 REIS 47K 1E 5 N N 2 pes o AN 3 n 10K 1000 t Ei e m 4 L 4 4 5 m R617 10K 18 Y 8 E R518 ueg s R523 VCC WEL Le 1 NJM4580D D408 IN4004 R402 120K D503 4148 7 3 nt x 10K 1000 E je 0 4 2 2 8 U503 5 2203 2 P C413 100N NJM2068 4 a4 H2vE a 15 5 IE C412 22U hun a a o 1 5 401 Cz408 czso3 E 09 1 40 7802 AIBN z gt 0401 134004 3 4 ave 3 1 12VF Ms 1 e 4 l 00 St 4 4 a 1 222 D402 IN4004 3 sv e501 10u E z 4 Pt 358 cod 2N5401 2 R503 R501 x z z 2 1 100E 5 100E E E 8 NOTE ALL DC VOLTAGES ENCLOSED INTO SQUARES ARE ose T n 2 N x M 3 z n D403 IN4004 228 S2 M 5 E 2 S gt MEASURED IN STEADY STATE WITHOUT INPUT SIGNAL moz pK Rs040E0 osoz oN oO oTe 438 i DT B R B 25 C NOMINAL MAINS VOLTAGE SUPPLY co iH 2N5550 N D404 1N4004 4 0702 0703 0704 UBO2 0604 5 e efn SoS MifAeso cot 9598 N7P8o6e 945 z1 WWseo L1 3888 602 1 a 2 janes E a 5 A TRANSFORMER zl sie econ Y e S 7 S 2 n 4 4 s 4 4 z 2 CZ50
21. 3 2502246 R218B 02088 FRIO7 8 n Ut 10 T 02028 PI s w f fz w f w f uT w a id 3 N BEX 2802240 02138 4s slaw las law bas juu las las wu law ba 5 p QNM 2088 254870 consul s Pe s Ps AaS a alfa s HGB768015 T aa 2 2 ape sad alb ne BU ae SU SL ns n 207 02 nuke RU 0409 144004 R402 120K 0 57 20 N N N N N N N N N N N N N 2 co NIE 3 02098 L j rL c c cic 8 zl K 256 4 4 4 4 4 e A 5 1 in4 x 02048 a 21s m TONS 2240 3 T T I E 4 5 bl jw u s jw lw D iw PRI jw 5 a sfe lt Pe m 5 E 2541943 ERES FR Ls LS LS LS LS LS J 4 ole x Y 3 R217B 15K als 2 n a m o o o a o 5 501 amp LO gt 18 2 9 n x Ds M m m 12 uoy 2 Sin N i n a 5 S D 1N4002 R2 100E I 0401 1N4004 10401 4 5 2 EL EL t Pt t t w _ out FS t s N 1 1 1 1 D402 IN4004 _ GND 02038 02048 5 gt 5 2 sie 2562240 25 2240 2 02178 azise 2 azz 2 02238 azzse 2 02278 2 02298 2 02318 1 3f 02088 25 25 25 25 25 25 25 25A 25 C 819 5 gt 2sc4783 25 47939 3 1943 1843 1943 1943 1943 1943 1943 1943 1943 gt 2 2210 x ia N amp 55 4 PIE 3 FARER gt mca m o_o NOTI
22. SETUP e Connect the Variac between the Mains the amplifier and set it at zero voltage Turn full counter clockwise the LEVEL potentiometers Connect the audio generator to the channel inputs and set it to 1KHz 775mVrms OdBu sinusoidal signal e Connect the two scope traces to the amplifier outputs before the relay and set them in DC at 50V div 2mS div SUPPLY CHECK Verify with the Multimeter the insulation between the heatsinks and all transistor collectors mounted on them placing the multimeter tips between the screw heads and the collector pins you can exclude an erroneus reading due to the insulation of the heatsink anodization Verify with the Multimeter the NTC RT1 and R1 paralleled resistor value it must be about 7Kohm at 25 c Disconnect the amplifier module supplies of each channel red and yellow wires Set the Variac to the nominal mains voltage turn on the Amplifier then check with the Multimeter the AC supply voltages F1 F2 29 2Vac RED secondary wires 145 8Vac Re set the Variac at zero voltage turn off the amplifier and recon nect the supplies at each amplifier module e Set up the Variac slowly monitoring the oscilloscope screen it should display no signal if you notice a DC voltage or a protection trips check the amplifier as suggested in the ADVICES e As soon as the 12VF supply circuit reaches its nominal value all cooling fans run at their minimum and the
23. d C ays E A Sy ey ET ET ETET er ey 21 ey 2789 fle RD E R313 330E L309 4 pOT 7 3 BROUND g E rm 4 4 4 4 4 4 4 4 4 4 2 0204 gt x 5 E x N 2240 g R312 330E L308 o x THERMIC SWT 65 1 0 50V n 2 n Z nl JR FEE FEE n Z n lz 5 3bs 3 METER x 8 Fa AIRPAX 67F 065 lt y 1 o2 a 8 PERS FERES uj a 5 5 5 S 5 a S are EBEN eds EBEN eds ads eds EMEN 45 eds m Mx ADJ 1 Ran 3 g 9217 15 m n m m n Y L307 abe a li 8 co 3 8 2 8 3 R 8 x E 3 C3 gt TIEN T 3m 3a 3 3a 3m 30 3a 2 we a CZ404 CHI 2 I amp L306 thor 2 2 amp 1 1 1 1 1 1 s Por _ 22 C301 100 DE 0203 0 T 25 2240 Lo e 0215 2 2 0221 2 02235 2 0225 2 0227 2 02289 2 as 0301 6144 3 1 3f a207 a208 5 25 25 25 25 25 25 25 E aS Pt 5ps r m METER 4 25 4793 25 4793 1943 1843 1943 1943 1943 1943 1943 z 5 a u 8 2 ud 12VF 9 5 2 hi ste 5 N A 2 LN R308 330E L304 4 WOUT E CZ407 d b gt BRD 25 12VF f S 8 xx a 9 R307 330E L303 3 u Lol sw2 2405 CH2 404 4 4 4 4 4 4 4 Ps i abs B HE d ar Es y 1 S I Lt vcc y R306 330E L302 E E Q401 Sm M BIER diay 2 9 4 m e i gH 2N5401 g 54 t C105 1000 RI22
24. 02228 02248 02268 02288 2 AIRPAX 671095 IHL x NJM4580D 5 2sc 2sc 2sc 2sc 2sc 2sc 2sc 2sc 2sc VEIT ni 5 5200 5200 J 5200 2 5200 J 5200 J 5200 2 5200 J 5200 j2 5200 J 5 5 CH a OFFSET 1 az0sB nsv 02068 gt 1 1 1 1 1 1 1 1 1 E id ADJ 2541837 2541837 8 8 n 2 hin z z z z z z z z a 2 2 M n n M n 5 22 z 2T Pals pels Peis pets pets feels P a INPUTS 8 Els A g E 2 2 s g E E e C604 100P 3 11 02108 N m in n M M 1 5 2505200 50 R604 SKI x a28 32018 t 25 200 02038 C602 47U R602 5K1 E 9107 Q wo 4 4 4 4 4 4 4 4 4 CH2 1 1 5 9 m c212810u 5 21 1 xu z lxu z xu z seule lxu z zu z fs gt o La 2 L E o dau 9 Wu ji law tino law law bin Lip 9 NU Lin Nt bins law bin a C505 470 TU sev m z Ps afFasS of Fos s Ps of fas s Ps af Fas af FoS affa x 02128 N43 N olf SS olf 9 alles sll as SU s olos s ol o m z 12V Cz408 263295 S SU ml ge SU i19 GU ae nl BO oll oS GL GO RUSS RU BS mnzzsese PETE a NT 81 AT 81 AT NI NT sf NT ay NT 81 sy sy ay S PCB HO7 7347 JK601 2 6 R I k 1 wiles gt L3 mu L3 UE Ex E EJE E bis ae E E Ow FPE SC 4 gt in 470 C2098 27 am lt n 02058 L20181UH F L3 8 5 2 2a2018 1 25 200 m A fet g 2028
25. 2 0dBu 1CH 4E 200Vpp 1 7dBu 2CH 4E 185Vpp 1 0dBu Bridge 8E 373Vpp 0 6dBu LEVEL METER ADJUSTMENT e Check if the clip led lights at 2dBu on input 150Vpp on output if necessary adjust the trimmers W301 2 on display board OFFSET ADJUSTMENT e Set the input level at minimum no signal the output dc offset voltage must be within range 20mV if necessary adjust the VR201 trimmer for each channel to be within this range BIAS ADJUSTMENT No bias adjustment is necessary for this amplifier circuitry in any case the amplifier has the possibility to adjust it if necessary To check properly the bias proceed as follows Using a sinusoidal signal 1KHz or more and the 4E load attached wait till the heatsink temperature reaches about 60 c Turn down the signal at the smallest intensity you can read on your oscilloscope trace connected at the amplifier output e Zoom in the crossing region using the amplitude timebase and trigger controls of your oscilloscope If you see a distortion try to eliminate it adjusting the VR202 trimmer e Finally set the input level at minimum and verify with the multimeter attached across an emitter resistance p e R232 that the dc voltage doesn t exceed 10mv ADVICES If you have determinate that the problem is a short on a rail you must check the output transistors To determine which transistor devices are bad use a soldering iron to lift one leg of each emitter pin and measure
26. 20Vpp on output mains voltage plus its tolerance see specifications any upper volt the fans turn at their S N ratio 100 dB age can be cause of damage maximum speed Harmonic distortion THD lt 0 1 ref 20Hz 20KHz VISUAL CHECK T m E SX z er Intermodulation distortion SMPTE lt 0 1 SMPTE method 60Hz amp 7kHz 4 1 ratio Use compressed air to clear dust in the amplifier chassis without load after TIMEBASE EmS div e Before proceed to supply the amplifier check visually the internal wardsyoumustrepeat PE 296 GENERAL SPECIFICATIONS 400P 750P 1000P 1250P 1500 1800 2200 assembly if appears an evident damage find the most possible the check with the loads attached the following table reports the Power transformer thermal protection sons that cause it approx maximum level obtainable with this amp Short circuit protection e Check the wiring cables for possible interruptions or shorts PROTECTIONS Sensor for current on outputs ee a printed circuit board don t try to repair oxi Fri ie inerat CLIP Limiter on each channel S OMA TESTING GEAR 1CH 4E 91Vpp 0 2dBu Soft start circuit 1000P to 2200P Audio Generator 2CH 4E 82Vpp 2 0dBu ON OFF switch e Dual Trace Oscilloscope Bridge 8E 161Vpp 2 3dBu CONTROLS 21 detect input level control for each channel Digital Multimeter MODE selector e 4E 300W 8E 450W 100E 60W resistors LEVEL METER ADJUSTMENT SHIELD sel
27. 3 ela 2 n R310 330E L306 1 fad o gt 04 101 ST A 28 2240 ET 3 9 3 0207 zi 0301 144 x 25 4793 u Ss a R309 330E L305 5 ps N e x J gt 5 5 8 5 l n 5 2v n N a xx 3 E sre Ts E g 5 R308 330E L304 P wOUT m N ET aro 76 nave 8 2 M i sw2 2405 R307 330E L303 3p E 4 vcc DERN _ a X 4 Cam za x FERE RI05 10k R305 330E L302 abe a a 818 D sd 100U R122 10K Baii zZt C2 51 31 3 amo DE E 2 RS gmg E R305 330E L301 x sls n E y nC E NE 0414 IN4004 R413 10K M el 5 1000 R123 10K a102 i TERA MUT Bare NJM4580D 4148 nn tok 25998 Rita IPCB8 HO7 7407 D415 IN4004 R414 10K R415 5 x n 1 3 2 gt i e E d N 2 5 i HGB768017 o asos amp n 25C2690 3 2 STATUS BOARD 1 a 1501 7 SW xXx R501 1K2 R510 30K C513 470 je rums Senne cz410 1502 7 e 2 3 U103 Uto4 M580 LS03 3 DE 4 n ES RE TN IPCBA HQ7 74151 ke Bogs Ike 2 I 4 UM IPCBA HQ7 7415A 14 czan e sw2 1 OE PCB HO7 73671 3 zT 2 STEREO 24 MODE v 1 BRIDGE LE PVCCIB vec 470902 skr Tol HGB768025 CH2 750W AMPLIFIER MODU E L 21d 4 t t 5 5 6 HGB768016 i et z 8 5188 8 XLR INPUT 5 C505 470 a n BH ET E Flet S a N THERMIC SWITCH 95 BOARD a B AIRPAX 671095 5 C501 47U R501 5K11 Al H ENS It NJM4580D 8 E 4 E
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29. AEST 100U 10K NIMASEOD D1038 R1155 3 RMB 2 Fj Clo3H SP A 10W 4 e Ul04B l 0101B8 2 RI09B 22K x 12v E 2N3904 X m gt PCB HQ7 7365 1 2 9 1 n 3 m lt Q 8 4VAC RED E V g g E tse 2 A in z n m 2 a amp RIO2B 100K 6 NJM2088 5 BRIDGE vcc REDI 2 C1016 10U R101B u gt gt KBPC3510 4 b 1 OVAC BLK 515 2 1 22 any 25006 10 N 4 35 C1078 100N 7 8 B 3 7 BAVAC RED 4 Y102B 01048 NJM4580D POWER FELIS C1088 EB NUM4580 ON OFF zlo 8 gt H 5 o E N TRANSFORMER ate Y r p ee PCBA HQ7 74161 m BLK DEM IHMESBOB PCBA HQ7 7416A acu T oo o o7 oS NOTE ALL DC VOLTAGES ENCLOSED INTO SQUARES ARE 4 MEASURED IN STEADY STATE WITHOUT INPUT SIGNAL uit aa AT 25 C AND NOMINAL MAINS VOLTAGE SUPPLY M VCC IYELI DRW G BOCCATO DWG 550830 scm PCBt GENERALMUSIC S p A ITALY CKD GRICCI DATE 16 03 2006 SCHEMATIC DIAGRAM ALL RIGHTS ARE RESERVED NO COPIES OR REPRODUCE THIS DOCUMENT WITHOUT APP RFALCONI REV B Procon 1000p WRITTEN CONSENT BY GENERALMUSIC OUTPUTS
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31. If one or more voltages don t correspond check the rectifiers ca pacitors and transformers disconnecting them from circuitry CHANNEL CHECK Be sure you have disconnected the load resistor Increasing the input signal also the output signal raise accordingly it must be symmetrical OSCILLOSCOPE FIGURE without visible distor tion or oscillation as shown in figure note the figure is repre sentative don t refer tothelevels displayed If there is a distortion read the section AD VICES e When the input sig nal exceeds 20dBu 24Vpp on output the fans turn at their maximum speed Firstly you must check the channel without load afterwards you must repeat the check with the loads attached the following table reports the approx maxi mum level obtainable with this amp TRACE setting TIMEBASE AMPL ITUDE 2mS div 20V div out level in level no load 162Vpp 2 0dBu 1CH 4E 141Vpp 1 7dBu 2CH 4E 131Vpp 1 0dBu Bridge 8E 258Vpp 0 5dBu LEVEL METER ADJUSTMENT Check if the clip led lights at 2dBu on input 150Vpp on output if necessary adjust the trimmers W301 2 on display board OFFSET ADJUSTMENT e Set the input level at minimum no signal the output dc offset voltage must be within range 20mV if necessary adjust the VR201 trimmer for each channel t
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35. Zoom in the crossing region using the amplitude timebase and trigger controls of your oscilloscope If you see a distortion try to eliminate it adjusting the VR202 trimmer e Finally set the input level at minimum and verify with the multimeter attached across an emitter resistance p e R232 that the dc voltage doesn t exceed 10mv ADVICES If you have determinate that the problem is a short on a rail you must check the output transistors To determine which transistor devices are bad use a soldering iron to lift one leg of each emitter pin and measure the resistance across emitter and collector of each device Unsolder and lift one leg of each base pin and check the base collector resistance Replace any device that measure as a short e If all the transistors are OK unsolder and lift one leg of each diode and check them e Check the circuit board for open foil traces Use the Multimeter to check the resistors particularly the base and emitter resistors of damaged transistor If the input sinewave appears to be distorted during the negative cycle you can assume that the problem is located somewhere in the circuitry of the positive rail If the positive cycle appears distorted you can assume that the problem is in the circuitry of the negative rail e The dc voltages printed on the schematics are measured with the amplifier in steady state without input signal and nominal mains volt age supply it can be useful
36. a SIN 1 l 1 1 a o o A cote TT f t 4 wave R1218 10K Wav 2401 0407 14004 i 3 E ose m R1058 RISB 47k D104B 4148 x x 1AVAC YEL 3 P 94 d1n 007 2 _ 22 GNO o N 10K 2 A D405 IMAGO N 100U 10K N o m F2 TISA gt Saba 040372 SS cz38 7 C1048 470N 5 gpg 7812 em R1188 10K 4 m ciosa Ri238 01028 17 5 ONO oTe 1 5 6 Qm 40E SYAEE BER N4004 5 Hp LP 2N3906 230VAC XR RED o 2 ion TOK NJM4580D D1038 R158 c C103B 15 PCB H 7 74821 d e qm rj a1018 10K RIOS8 22K M AT czig 2v 21 NJM4580D 5 ogg 448 10K x 100K x peeks i m Gidea ise aE MVAC YEL z 2 gt PCBs HQ7 7385 1 X V 206 a El 3 R102B 100K lt Q 8 6SVAC RED T El s a NJM2088 5 E N 5 z E C1018 100 RI018 68K A BRIDGE vcc meo 1 zis KBPC3510 iaa eg A OVAC BLK 5 15 Te 6 MAINS EU 2 gt N C1078 100N 230VAC 10 N gt son ESVAE RED e E on gigs r 10 POSER D 8 H 5 PCBA HQO7 7416 ONZOFE j a PENES 1 I 7416A E 1 N TRANSFORMER 12v NJM4SB0D alk AT NOTE ALL DC VOLTAGES ENCLOSED INTO SQUARES ARE MEASURED IN STEADY STATE WITHOUT INPUT SIGNAL 25 C AND NOMINAL MAINS VOLTAGE SUPPLY Vec wei G BOCCATO Dwet 550830 sem Pce
37. a rail you must check the output transistors To determine which transistor devices are bad use a soldering iron to lift one leg of each emitter pin and measure the resistance across emitter and collector of each device Unsolder and lift one leg of each base pin and check the base collector resistance Replace any device that measure as a short e If all the transistors are OK unsolder and lift one leg of each diode and check them e Check the circuit board for open foil traces Use the Multimeter to check the resistors particularly the base and emitter resistors of damaged transistor e If the input sinewave appears to be distorted during the negative cycle you can assume that the problem is located somewhere in the circuitry of the positive rail e If the positive cycle appears distorted you can assume that the problem is in the circuitry of the negative rail The dc voltages printed the schematics are measured with the amplifier in steady state without input signal and nominal mains volt age supply it can be useful to localize a damage PROCON1000p Test procedures PRECAUTION To prevent short circuit during any test the oscilloscope must be EARTH INSULATED this occurs because some test require to connect its probe to the amplifier output non compliance may cause damages to oscilloscope inputs circuitry e Before removing or installing any modules and connectors disconnect the amplifier from AC MAINS and
38. heatsink anodization Verify with the Multimeter the NTC RT1 and R1 paralleled resistor value it must be about 7Kohm at 25 c e Disconnect the amplifier module supplies of each channel red and yellow wires e Set the Variac to the nominal mains voltage turn on the Amplifier then check with the Multimeter the AC supply voltages Fi1 F2 29 2 RED secondary wires 164 9 e Re set the Variac at zero voltage turn off the amplifier and recon nect the supplies at each amplifier module Set up the Variac slowly monitoring the oscilloscope screen it should display no signal if you notice a DC voltage or a protection trips check the amplifier as suggested in the ADVICES As soon as the 12VF supply circuit reaches its nominal value all cooling fans run at their minimum and the speaker output relais 2201 202 switch e When the Variac ac voltage reaches the nominal voltage verify the DC supplies as follow VCC 110t7Vdc VCC 110 7Vdc U501 pin 8 12 0 5Vdc U501 pin 4 12 0 5Vdc U403 pin 12 54 0 5Vdc e If one or more voltages don t correspond check the rectifiers ca pacitors and transformers disconnecting them from circuitry CHANNEL CHECK Be sure you have disconnected the load resistor Increasing the input signal also the output signal raise accordingly it must be symmet rical without visible distortion or oscillation as shown in figure note the figure is represent
39. in DC at 20V div 2mS div SUPPLY CHECK Verify with the Multimeter the insulation between the heatsinks and all transistor collectors mounted on them placing the multimeter tips between the screw heads and the collector pins you can exclude an erroneus reading due to the insulation of the heatsink anodization Verify with the Multimeter the NTC RT1 and R1 paralleled resistor value it must be about 10800hm at 25 c e Disconnect the amplifier module supplies of each channel red and yellow wires e Set the Variac to the nominal mains voltage turn on the Amplifier then check with the Multimeter the AC supply voltages Fi1 F2 29 2 RED secondary wires 106 10Vac e Re set the Variac at zero voltage turn off the amplifier and recon nect the supplies at each amplifier module e Set up the Variac slowly monitoring the oscilloscope screen it should display no signal if you notice a DC voltage or a protection trips check the amplifier as suggested in the ADVICES As soon as the 12VF supply circuit reaches its nominal value all cooling fans run at their minimum and the speaker output relais 2201 202 switch e When the Variac ac voltage reaches the nominal voltage verify the DC supplies as follow TVCC 72 7Vdc VCC 72 7Vdc U101 pin 8 12 0 5Vdc U101 pin 4 12 0 5Vdc U403 pin 3 12 0 5Vdc e If one or more voltages don t correspond check the rectifiers ca pacitors and transformers disco
40. maximum speed e Firstly you must check the channel trace setting without load after TIMEBASE 2mS div AMPLITUDE 20V div wards you must repeat the check with the loads attached the following table reports the approx maximum level obtainable with this amp OSCILLOSCOPE FIGURE out level in level no load 178Vpp 1 0dBu 1CH 4E 154Vpp 0 8dBu 2CH 4E 141Vpp 0 0dBu Bridge 8E 278Vpp 0 5dBu LEVEL METER ADJUSTMENT e Check if the clip led lights at 2dBu on input 130Vpp on output if necessary adjust the trimmers W301 2 on display board OFFSET ADJUSTMENT e Set the input level at minimum no signal the output dc offset voltage must be within range 20mV if necessary adjust the VR201 trimmer for each channel to be within this range BIAS ADJUSTMENT No bias adjustment is necessary for this amplifier circuitry in any case the amplifier has the possibility to adjust it if necessary To check properly the bias proceed as follows Using a sinusoidal signal 1KHz or more and the 4E load attached wait till the heatsink temperature reaches about 60 c Turn down the signal at the smallest intensity you can read on your oscilloscope trace connected at the amplifier output Zoom in the crossing region using the amplitude timebase and trigger controls of your oscilloscope If you see a distortion try to eliminate it adjusting th
41. measure the DC supply voltages across each of the power supply capacitors If your measurement on any of the caps is greater than 10Vdc connect a 100E 80W resistor across the applicable caps to discharge them for your safety Remember to remove the discharge resistor immediately after discharging caps Do not power up the amplifier with the discharge resistor connected e Do not check the amplifier with the speakers connected use the appropriate load resistors only BE CAREFUL increasing the Variac you must not exceed the nominal mains voltage plus its tolerance see specifications any upper volt age can be cause of damage VISUAL CHECK Use compressed air to clear dust in the amplifier chassis e Before proceed to supply the amplifier check visually the internal assembly if appears an evident damage find the most possible rea sons that cause it e Check the wiring cables for possible interruptions or shorts If the damage has burnt a printed circuit board don t try to repair it replace with a new one TESTING GEAR e Audio Generator Dual Trace Oscilloscope Digital Multimeter e 4E 700W 8E 1100W 100E 80W resistors Variac Digital Thermometer not indispensable SETUP Connect the Variac between the Mains and the amplifier and set it at zero voltage e Turn full counter clockwise the LEVEL potentiometers Connect the audio generator to the channel inputs and set it to 1KHz 775mVrms OdBu sinusoidal
42. occurs because some test require to connect its probe to the amplifier output non compliance may cause damages to oscilloscope inputs circuitry Before removing or installing any modules and connectors disconnect the amplifier from AC MAINS and measure the DC supply voltages across each of the power supply capacitors If your measurement on any of the caps is greater than 10Vdc connect a 100E 100W resistor across the applicable caps to discharge them for your safety Remember to remove the discharge resistor immediately after discharging caps Do not power up the amplifier with the discharge resistor connected e Do not check the amplifier with the speakers connected use the appropriate load resistors only BE CAREFUL increasing the Variac you must not exceed the nominal mains voltage plus its tolerance see specifications any upper volt age can be cause of damage VISUAL CHECK Use compressed air to clear dust in the amplifier chassis e Before proceed to supply the amplifier check visually the internal assembly if appears an evident damage find the most possible rea sons that cause it e Check the wiring cables for possible interruptions or shorts If the damage has burnt a printed circuit board don t try to repair it replace with a new one TESTING GEAR Audio Generator Dual Trace Oscilloscope Digital Multimeter e 4E 900W 1500W 100E 100W resistors Variac Digital Thermometer not indispensable
43. on any of the caps is greater than 10Vdc connect a 100E 70W resistor across the applicable caps to discharge them for your safety Remember to remove the discharge resistor immediately after discharging caps Do not power up the amplifier with the discharge resistor connected e Do not check the amplifier with the speakers connected use the appropriate load resistors only BE CAREFUL increasing the Variac you must not exceed the nominal mains voltage plus its tolerance see specifications any upper volt age can be cause of damage VISUAL CHECK e Use compressed air to clear dust in the amplifier chassis e Before proceed to supply the amplifier check visually the internal assembly if appears an evident damage find the most possible rea sons that cause it e Check the wiring cables for possible interruptions or shorts e If the damage has burnt a printed circuit board don t try to repair it replace with a new one TESTING GEAR e Audio Generator Dual Trace Oscilloscope Digital Multimeter e 4E 450W 8E 800W 100E 70W resistors Variac Digital Thermometer not indispensable SETUP Connect the Variac between the Mains and the amplifier and set it at zero voltage Turn full counter clockwise the LEVEL potentiometers e Connect the audio generator to the channel inputs and set it to 1KHz 775mVrms OdBu sinusoidal signal e Connect the two scope traces to the amplifier outputs before the relay and set them
44. signal Connect the two scope traces to the amplifier outputs before the relay and set them in DC at 50V div 2mS div SUPPLY CHECK Verify with the Multimeter the insulation between the heatsinks and all transistor collectors mounted on them placing the multimeter tips between the screw heads and the collector pins you can exclude an erroneus reading due to the insulation of the heatsink anodization Verify with the Multimeter the NTC RT1 and R1 paralleled resistor value it must be about 7Kohm at 25 c e Disconnect the amplifier module supplies of each channel red and yellow wires e Set the Variac to the nominal mains voltage turn on the Amplifier then check with the Multimeter the AC supply voltages Fi1 F2 29 2Vac RED secondary wires 125 6 e Re set the Variac at zero voltage turn off the amplifier and recon nect the supplies at each amplifier module e Set up the Variac slowly monitoring the oscilloscope screen it should display no signal if you notice a DC voltage or a protection trips check the amplifier as suggested in the ADVICES As soon as the 12VF supply circuit reaches its nominal value all cooling fans run at their minimum and the speaker output relais 2201 202 switch e When the Variac ac voltage reaches the nominal voltage verify the DC supplies as follow TVCC 82t5Vdc VCC 8245Vdc U501 pin 8 12 0 5Vdc U501 pin 4 12 0 5Vdc U403 pin 3 12 5 0 5Vdc
45. the resistance across emitter and collector of each device Unsolder and lift one leg of each base pin and check the base collector resistance Replace any device that measure as a short e If all the transistors are OK unsolder and lift one leg of each diode and check them e Check the circuit board for open foil traces Use the Multimeter to check the resistors particularly the base and emitter resistors of damaged transistor e If the input sinewave appears to be distorted during the negative Cycle you can assume that the problem is located somewhere in the circuitry of the positive rail e If the positive cycle appears distorted you can assume that the problem is in the circuitry of the negative rail e The dc voltages printed on the schematics are measured with the amplifier in steady state without input signal and nominal mains volt age supply it can be useful to localize a damage OP METER CH1 CH2 METER PROTECT A mans 230VAC 0 OUTPUTS CHI_FAN
46. 08 27P i Ln 0205 FRIO7 L201 1UH E t 4l t 4 4 4 2406 gt 0415 144004 1195 20201 2 1 2SC2001K al 0206 FRIO7 4 A E E tig 5 R201 K C202 100 inim R28 27k 8 2 3e E t Lu sw af E 3 s m a23 p sf ulas lag sols eae la Tao ia 8 lau s N glk 8 oe 2 E 2552240 TAOS TOON 254370 amp p BH Sd ee Se Sine s Suus Sn U302 144 z E E 2 58 tou m lal s aE gt of Fr R314 330E L310 A 5 e 5 56k Seed ge 2 z ee sual gU 8 sU 8 SUSS sU g S05 z oe e er 7 JoiscHRs 72 579 d bov os pcre ey B S ET ET ET 81 Br 8 ET E E a E 7 E 5 vcc crouno 4 ole x pa 4 4 4 4 R313 330E L309 E a z slh 8 25c D204 8 Ei x u FRIO7 3 n x jn 8 THERMIC SWT 65 55 an pjg Pa PEE R312 330E L308 5 METER z E AIRPAX 7 5 pie els gis wis eds be amr gt gt 5 gis s m E 4 R217 15K ajz n n I E amp qn ADJ 1 EE 2 Taa 5 8 Y a n w 330E L307 2 a Je 2 T s s 2 zu b2 o sls 12v 5 ET Ul 3 2Zt C2 1 8 z L308 EHE FANI 2 2 2 amp 1 a 0203 Ur eL p C301 100 2 9t M 25C2240 L azis 2 2 O22 2 0223 2 m x 1 3 azo7 a208 25A 25A 25 308 330E L305 DE 25 4793 25 47 3 1943 1943 1943 z z
47. 1 PCB 07 73671 JE gt Tz sre ape ae i Vv W MODULE eas 470902 skn Ta HGB768027 CH2 625W AMPLIFIER x E HGB7 68016 1 in 5 T ARE gt oj m E x 8 818218 S s XLR INPUT a C505 470 SL x m n m ono 2 wo N BOARD a 8 E 3 ST 2 N o THERMIC SWITCH 85 c 5 R 5 02148 a2158 0218B8 a220B8 02228 AIRPAX 67L095 C501 47U R501 5K11 2 050 4 25 25 25 25 25 12 06 x NJM4580D o 3 5200 5200 2 5200 2 5200 2 5200 2 3 rae 8 2 2402 ewes OFFSET 82 0V y ozosa az0vf _ af i 1 1 1 CH1 STE ADJ T 25A1837 2541837 T 18 n 5 ela x 2 9t 2 21 8 ERES 3p 30 8 3u 8 a 5 em A om gt ERES EMEN LENS LS By Ela A g E E g Al 5 b o 4 02108 5 a 5 C604 100P lt 4 8 E a e 2scsise 1 ga t 12 I E x 3 eso y mem sE m 2 m s C502 4709502 5 g z b 4 4 4 SI 2 z2 di neis 3 21 2 lx gl Slew 28 leu 5 leu 88 8 8 18e 3 s LED ag shag 08 IS UI 5 C605 470 mri 3 nu eus i i E aul amp R226B561 Sj STIS 2 z 12 CZ403 5 c2048 E gt i e e j E if Ris PCBs HQ7 7347 JKB01 Ut amp L At gt Pie eins NEN 4 UR e 4 4 4 2 1 NJM4580D 2 2SC2001K Ll 2018 all
48. 3mm Red Led Input Protection Driver Board HGB768036 Input Protection Driver Board PCBA HQ7 7417 Procon 400P HGB768033 Input Protection Driver Board PCBA HQ7 7417 Procon 750P HGB140004 2sw 2pos H Slider Switch HGB140003 Jack Horizontal S F Socket HGB110301 Relay 12V 2 Switch 10A 250Vac HGB100000 TA7317P Speaker Protection Circuit 100045 7812 12V 1A Voltage Regulator 100043 7912 12V 1A Voltage Regulator 100971 NJM4580D Dual LN Operational Amplifier SKK100000 NJM2068D Dual LN Operational Amplifier 100004 LM3080 Single Operational Transconctance Amplifier HGB090008 2SC2690 TO126 Npn Transistor Procon 750P HGB090010 2SA1220 TO126 Pnp Transistor Procon 750P HGB090000 2SC2240GR TO92 LN Npn Transistor HGB090017 2SD667AC TO92L Npn Transistor Procon 400P HGB090018 2SB647AC TO92L Pnp Transistor Procon 400P 090200 2N5551 TO92 Npn Transistor HGB090019 2N3904 TO92 Npn Transistor HGB090020 2N3906 TO92 Pnp Transistor 080272 12V 1W 5 Zener Diode 080158 1N4004 1A 400V Rectifier Diode 080103 1N4148 100mA 75V Signal Diode 110011 T1A Fuse 5x20mm EU Dual Channel Amplifier Module HGB768034 375 375W Amplifier Module PCBA HQ7 7474 Procon 400P HGB768037 200 4 200W Amplifier Module PCBA HQ7 7473 Procon 750P GB090008 2SC2690 TO126 Npn Transistor GB090010 2SA1220 TO126 Pnp Transistor GB090014 2SA1943 TO264 Pnp Transistor Procon 750P GB090013 2SC5200 TO264 Npn Transistor Procon 750P GB090006 25 1941 TO3P T
49. 4 1 a O an om a a 3 1 14VAC YEL s l IN _ OUT 5 s E N 2 ame DE m D406 1 4004 GND R504 0 R502 0 e 212g 9 2 m gt 2 nis NE a 25 2690 9 Li F2 A t 22 U403 52 N25 4 _ 9 N MAINS EU Sams 7812 EH om TOE 5 2n 1407 m 100 230VAC 10 d OVAC BLK 2 2 9 oe BONE PCB HQ7 74171 o PCBA HQ7 7474 ou A POWER 12V ON OFF fiir Ox BLU 1 14VAC YEL gi S3VAC RED x HGB768032 A VCC CAPACITORS BOARD E Q BRIDGE svee 5 KBPC3510 A OVAC BLK S 2 1 RED S3VAC RED BLK YEL Y Sn G BOCCATO Dwet 550832 scm eces GENERALMUSIC S p A ITALY HQ7 7348 CKD GRICCI DATE 06 12 2005 SCHEMATIC DIAGRAM ALL RIGHTS ARE RESERVED NO COPIES OR REPRODUCE THIS DOCUMENT WITHOUT APP R FALCONI REV A Procon 750p WRITTEN CONSENT BY GENERALMUSIC CP OUTPUTS
50. 4 T 25C5198 ovi t 2 4 2 0412 IN4004 3 20 9 9 HGB768018 Lia z Y Jose BREE R315 U404 TA7317P t x z 4 x A t m cag oU c Tu su lau 8 law 5 DISPLAY BOARD S vcc 5 asd Slew ba 8 i 2 kw bie 2 ede 4 rar woes s n z sevIal 5L fs 2 a FPse i y mhs ET 4 RU Re N AT Ae ON NT N R226 SE LIMIT 4 ela EJ e E a 4 E ZR zm ors 2409 t 5 L201 1UH 2 0411 IN4004 UN D205 FR 07 clt 8 MuTING RELAY i s 2 C208 27P pem EZA08 gt z D413 IN4004 2104 2 pon SU T Vr ozos N E Ha 9 4 l M 3 x x C302 100 om g 5 5 3 Sjaj y Aw 2 8 law 2 S Au 3 8 2 C x z 9 2 A o law gu 9 quw ede o LN 2 C213 10U in m in m M z R314 330E L310 2 T M 2 1 4 N N N N N N a p s r WE M ie DISCHRG 2 J sova 2 af 2 E 2g e e e e 8 u P lt a xx E 7 E VCC GROUND x 4 R313 330E L309 OUT 3 a ki xls N A z y x n Ra i E m THERMIC SWT 65 x 1 azn 0 50V PES Ll R312 330E L308 3 u x METER 2 M AIRPAX 67F065 n 9 2541941 M e rm g Epa RE i 7 07 ES 515 Y g p Mx a ADJ Apa 107 8 Sle N R38 330E L307 2 mE 3 z 4 m bz gus 12 s CZ404 Jg t 1 1 3 2
51. 8 M cor 2N5401 3 9 2 R503 E 3 n m Caz z z a EU uis 100E 3 S g 9 NOTE ALL DC VOLTAGES ENCLOSED INTO SQUARES ARE RSO1 10K 0501 1N4004 in 5 0403 1N4004 9 u402 ag m 5 Hi MEASURED IN STEADY STATE WITHOUT INPUT SIGNAL C a 3 aso2 ono OTs 792 a 8 2 n z AT 25 C AND NOMINAL MAINS VOLTAGE SUPPLY FOUR IOW D302 WANOA R3040EC e 15 2N5550 je 4 4 ouT 2 NuMase0 z 3686 z pz 3980 2 5 FUR TRANSFORMER 12VF 5 T 3 ri NH 1 5 0405 144004 3 m 4 e 2 e ok 2 2504 14VAC YEL T 2 Y om 2 3 amp i D406 1N4004 n lls EN R504 9 5 n L E aso3 2125 m 2 giL vos yy H 280260 SES erz Ey od z OVAC BLK e 2 2 2 n ES lr 2 AA POWER 4 pm IPCBi 07 7417 PCBA 07 74731 ou BLU oo MVAC YEL ax 43VAC RED HGB768035 ge VCC CAPACITORS TED 5 Aly VCE CH2_FAN HI CEHI EAN gt j L ovac eLK 8 15 RED o E 43VAC RED BLK m a SP 4 YEL M DRW G BOCCATO DWG 550833 scm PCBs GENERALMUSIC S p A ITALY CKD G RICCI DATE 21 12 2005 SCHEM APP R FALCONI REV A Proc ATIC DIAGRAM on 400p ALL RIGHTS ARE RESERVED NO COPIES OR REPRODUCE THIS DOCUMENT WITHOUT WRITTEN CONSENT BY GENERALMUSIC
52. AT 25 C AND NOMINAL MAINS VOLTAGE SUPPLY Y VCC IYELI DRW G BOCCATO DWG 550xxx scm PCB GENERALMUSIC S p A ITALY CKD GRICCI DATE 16 03 2006 SCHEMATIC DIAGRAM ALL RIGHTS ARE RESERVED NO COPIES OR REPRODUCE THIS DOCUMENT WITHOUT APP RFALCONI REV Procon 2200p WRITTEN CONSENT BY GENERALMUSIC Spare Part List Legend EU Europe version 230V code description Miscellaneous Parts 130285 Mains Cable EU 110291 16A 250Vac Bipolar Power Switch 020493 100n 250Vac MKP EMI Capacitor 110003 T3 15A Fuse 5X20mm Procon400P 110029 T4A Fuse 5X20mm Procon750P 110023 T8A Fuse 5X20mm 1000 110030 T10A Fuse 5X20mm Proconi250P 110040 T12A Fuse 6 3X32mm 1500 110041 T15A Fuse 6 3X32mm Procon1800P 2200P HGB110100 Panel Fuse Holder for 5x20mm fuses HGB110101 Panel Fuse Holder for 6 3x32mm fuses HGB238007 Transformer 230Vac 550W EU Procon 400P HGB238008 Transformer 230Vac 920W EU Procon 750P HGB238009 Transformer 230Vac 1480W EU Procon 1000P HGB238010 Transformer 230Vac 1660W EU Procon 1250P HGB238011 Transformer 230Vac 2090W EU Procon 1500P HGB238012 Transformer 230Vac 2680W EU Procon 1800P HGB238013 Transformer 230Vac 3170W EU Procon 2200P HGB080801 KBPC3510 35A 1000V Rectifier Diode Bridge Procon 400P 1800P HGB080802 KBPC5010 50A 1000V Rectifier Diode Bridge Procon 2200P 141200 Speakon Socket NLAMP Neutrik HGB347001 Volume Knob HGB140000 D
53. CE REPLACE THIS A w 2 u4o2 sels a ll Nem n CIRCUIT ENTIRELY Fl D403 IN4004 See 792 9 a WIS N 8 A STs 1 STS zr t 4 4 4 4 4 4 4 4 4 4 4 4 2 __ 5 14VAC YEL l 3 E CIOSB 1228 R1058 IN QUT gt 47K 01048 4148 x x A D406 1N4004 GND H L3 gt S U403 Na 100U 10K N 10K F2 paos SS CZ38 RI7B 10K N rj 230VAC o NO oT 1 CIOSB R1238 R1188 10K E SOR on 2 t OVAC BLK 5 6 atoze 230VAC lt M ADE RED N4004 p C es 3 u hi AAA 2 x NJM4580D 2N3306 tow PCBR HO7 7462 i 1090 HORS Biase pil y RIMB aois Tok 2 Ridge azk C1038 15 1 n Goss ps Ld perma a 15 218 E NJM4580D 4148 x 100K x C1028 15 47 hi Uto3B 9 1 m 5 Z Ha7 7365 i s n 3 BOYAG RED A V 5 8 d x R102B 100K NJM2058 5 A o BRIDGE vcc RED amp 2 C101B 10U R101B 68K Y a w 2 5 1 L 1 oVAC BLK 615 2 1 cz28 ET d 25006 10 N A 22 25 C1078 100N 7 8 B BBVAC RED 4 oS 3 1 U102B 1048 NJM4580D POWER 1 34 C1088 100N VR Neo au Z 2 oe M H I 4 5 IPCBA HO7 7444 gt els A TRANSFORMER 12V NJM4580D PCBA HQ7 7444A1 Am BLK oot TN L 7 oS NOTE ALL DC VOLTAGES ENCLOSED INTO SQUARES ARE 4 uo MEASURED IN STEADY STATE WITHOUT INPUT SIGNAL alia
54. CH1 750W Amplifier Module Pcb HQ7 7415 Procon 1500P HGB768023 CH2 900W Amplifier Module Pcb HQ7 7409 Procon 1800P HGB768022 CH1 900W Amplifier Module Pcb HQ7 7409 Procon 1800P HGB768021 CH2 1100W Amplifier Module Pcb HQ7 7444 Procon 2200P HGB768020 CH1 1100W Amplifier Module Pcb HQ7 7444 Procon 2200P HGB110304 Relay 12V 1 Switch 30A 240Vac NO 100971 NJM4580D Dual LN Operational Amplifier SKK100000 NJM2068D Dual LN Operational Amplifier 00004 LM3080 Single Operational Transconctance Amplifier GB090013 2SC5200 TO264 Npn Transistor GB090014 2SA1943 TO264 Pnp Transistor GB090005 2SC5198 TO3P TO218 Npn Transistor GB090006 2SA1941 TO3P TO218 Pnp Transistor GB090015 2SC4793 TO220P Npn Transistor GB090016 2SA1837 TO220P Pnp Transistor GB090000 2SC2240GR TO92 LN Npn Transistor GB090004 2SA970GR TO92 LN Pnp Transistor GB090001 2SC2001K TO92 Npn Transistor GB090019 2N3904 TO92 Npn Transistor GB090020 2N3906 TO92 Pnp Transistor 80272 12V 1W 5 Zener Diode GB080800 Ntc type DKF503 Thermometrics GB080000 FR107 OR BA159 Fast Rec Diode 1A 1000V 500ns DO41 GB061000 10K 4W 5 Resistor 080158 1N4004 1A 400V Rectifier Diode 080103 1N4148 100mA 75V Signal Diode 060151 1E 5W 5 Wire Resistor SSO SSS SSIS SSS Note Each spare part is single quantity unless otherwise specified Asterisk prefix explanation Omitted First level spare part One asterisk Second level part of previous listed first level part T
55. GENERALMUSIC S p A ITALY G RICCI DATE 16 03 2006 SCHEMATIC DIAGRAM ALL RIGHTS ARE RESERVED NO COPIES OR REPRODUCE THIS DOCUMENT WITHOUT APP R FALCONI REV B Procon 1250p WRITTEN CONSENT BY EENERALMUSIC Low METER CH1 CH2 METER PROTECT OUTPUTS
56. Index Technical specifications transistor packages Procon 400p test procedures f Procon 750p Procon 1000p test procedures PRR E E ee ON AE oec DON Procon 1250p Procon 1500p test procedures Procon 1800p Procon 2200p test procedures 000000000000000000000000000000000000000000000000000000000000 Procon 400 schematic Procon 750p schematic Procon 1000p schematic Procon 1250p schematic Procon 1500p schematic Procon 1800p schematic Procon 2200p schematic Spare part list procon plu 00 Noti Notice Service must be carried out by qualified personnel only Any tampering carried out by unqualified personnel during the guarantee period will forfeit the right to guarantee For a correct operation of the instrument after having switched off be careful to wait at least 3 seconds before switching on again To improve the device s specifications the schematic diagrams may be subject to change without prior notice All components marked by this symbol have special safety characteristics when replacing any of these components use only manufacturers specified parts The u micro symbol of capacitance value is substituted by U The Q omega symbol of resistance value is substituted by E The electrolytic capacitors are 25Vdc rated voltage unless otherwise specified All resistors are 1 8W unless otherwise specified All switches shown in the OFF position All DC voltages measured to ground with a vol
57. J t 25A1837 25A1837 E 8 9 in E x x x tle 2 Bd gt om paji ajs prj ajs Jaji Paji paji P 3 518 gt gt gt lt L gt D x t 5 T N 2 m m al m m m 5 INPUTS C504 100P 4 2 8 8 M E ri P d M 5 1 2509200 2 ale C602 47U R602 s z Sy FRIOZ 1 1 1 I T 1 CH2 1 319 b 2 ET 8 w fe lu gt fz lz le Ru ls 215 La aR 2 fps lal bao law bao law law bao law bio law bao in csos 47u oe s 89 elfes alfes aeS 2lfes seS alles eles z i2V CZ403 suse SU se Bu BUGS BU ge RUS R22685E1 z PER fej ATAT AT 8 AT NI AT AY 8 NT 8 NT 89 NS NI AT A PCBs HQ7 7347 JKB01 2 g E i wily p ele ele ele D ele cic cj e Ls E Een Zune US AE 27 RH SLR ose c E ef 4 4 4 5 2018 25 2001 A EH g R2018 2028 00 15291815 1 RU T eno 8 ket 2 2 Cae 62028 Pie hil x uir ax zu w e E D EEEN 25C2240 NIU LNU bin OLN bin SIN bin ol vw bin e o LN N p N i CZ088 254970 Pae a bae alba Poe 5 3 HGB7 1 ome T 2 Con elas sles elles SU 2 0152 cles 5 R z GB768015 0409 144004 R402 120K els 0 67
58. K 8 TET 2 lm co om iG zzovac 17AMO3S sue ave m o 0 278 s closs 5 RIB 10K g E S 230VAC e RI ARR RED 1 4004 G CI eH amp 2 2N3906 WN Poe Hi7 7482 1000 NUMA S800 D1038 R SB SP Aw u1048 PI LT RI0S8 22K x 712 2 2N3804 lt n TUN Ae gt PCBs HQ7 7365 1 x 2 2 1 g El BQ 5 BOVAC RED t V m t Bg MES Ie g 8 ca duce E oox A BRIDGE ycc ise E E C1018 10U R1018 68K w is KBPC3510 I OVAC BLK 8 228 12V ny MAINS EU _ 1 5 230VAC 10 N 2 50Hz 8 gt e E C1078 100N Z U101B BOVAC RED 4 zm 1 y1028 NJM4580D POWER ELE emi C1088 100N 5 zi PESE M H 4 5 5 IPCBA HO7 7403 el TRANSFORMER adi 12v NJM4SBOD IPCBA 7 7409 1 7 NOTE ALL DC VOLTAGES ENCLOSED INTO SQUARES ARE 4 0 SIS MEASURED IN STEADY STATE WITHOUT INPUT SIGNAL xd s AT 25 C AND NOMINAL MAINS VOLTAGE SUPPLY Y VCC IYELI i DRW G BOCCATO DWG 550828 scm PCB BENERALMUSIC S p A ITALY CKD G RICCI DATE 16 03 2006 SCHEMATIC DIAGRAM ALL RIGHTS ARE RESERVED NO COPIES OR REPRODUCE THIS DOCUMENT WITHOUT APP R FALCONI REV B Procon 1800p WRITTEN CONSENT BY EENERALMUSIC OUTPUTS
59. O218 Pnp Transistor Procon 400P GB090005 2SC5198 TO3P TO218 Npn Transistor Procon 400P GB090000 2SC2240GR TO92 LN Npn Transistor GB090004 2SA970GR TO92 LN Pnp Transistor GB080800 Ntc type DKF503 Thermometrics 80158 1N4004 1A 400V Rectifier Diode 80103 1N4148 100mA 75V Signal Diode GB060089 0E43 5W 5 Wire Resistor Ae e d e Input Protection Board HGB768031 Input Protection Board PCBA HQ7 7462 Procon 1000P HGB768030 Input Protection Board PCBA HQ7 7462 Procon 1250P HGB768019 Input Protection Board PCBA HQ7 7462 Procon 1500P 1800P 2200P HGB140004 2sw 2pos H Slider Switch HGB140005 4sw 2pos Slider Switch HGB140003 Jack Horizontal S F Socket HGB100000 TA7317P Speaker Protection Circuit 100045 7812 12V 1A Voltage Regulator 100043 7912 12V 1A Voltage Regulator 100971 NJM4580D Dual LN Operational Amplifier HGB090008 2SC2690 TO126 Npn Transistor 090200 2N5551 TO92 Npn Transistor 090201 2N5401 TO92 Pnp Transistor 080158 1N4004 1A 400V Rectifier Diode 080103 1N4148 100mA 75V Signal Diode 110012 T1 6A Fuse 5x20mm EU Single Amplifier Module HGB768029 CH2 500W Amplifier Module Pcb HQ7 7416 Procon 1000P HGB768028 CH1 500W Amplifier Module Pcb HQ7 7416 Procon 1000P HGB768027 CH2 625W Amplifier Module Pcb HQ7 7416 Procon 1250P HGB768026 CH1 625W Amplifier Module Pcb HQ7 7416 Procon 1250P HGB768025 CH2 750W Amplifier Module Pcb HQ7 7415 Procon 1500P HGB768024
60. R METER x 5 8 a 5 ele 5 6 t A 5 labs 2 m N N CZ407 STE 5 a 9 8 R308 330E L304 P E a S M F f BRD 25 x 12VF 2 MA a 91 S cais tna be 4 4 4 4 V m 3 swe 2 8 R307 330E L303 sp E Le i X um R121 10K y R306 330E L302 s 4 EA 0401 Za amp 12 5 RIOS 10K DT 2b2 o e a oo 2N5401 ae 22 wx s R19 47K 0104 4148 x slau E x o on n 2 Ra a m pi R305 330E L301 he pea Rit 10K b D AE H gt 2 l g a n 0414 1N4004 R413 10K 1 C106 1000 R123 10K 5 R118 10K aioz 10KE Not Uto2 2 3080 3 HERMIC SWT B5 c 1 4 243906 IPCB HQ7 74071 0415 IN4004 10K R415 0E0 5 Reese uix Mesum 2 i H x NJM4580D D103 4148 RNBIOK 8114 100K 5 CIO315P R107 47E al 61 in g UI04 LJ x x 2 M OR 2435904 lt 205551 2 5 12 il NJM4580D amp dos gt N a C102 15 1 E E i HGB768017 M asos 1 d V 2 g Er em 3 5 STATUS BOARD czwi oes 4 2 ba E ctorloy RI016aK 5 3 7 5 2 1g v L501 1 ANS R501 1K2 2 R510 27K C513 470 8 51 STEREO cz2 12V POMER 14 1 2 9 s Pi arose MODE czaso 1 4 on RRO RSO2 KK2 4 X re 9 1 SE C107 100N 8 7 8 8 BRIDGE m T 103 0104 HQ7 74161 ja C3 2 Y Y I E I h VERS IPCBA HQ7 7416A1 PROTECT 4 4 Je czan ly 4 NJM4580D 3 5 2
61. V oov ala N N N N N N N z CoH 50 l4 Le _ ele ELEL c c SOFT START als 2 256 204 2 m 22 EUN E 2240 ERI07 3 z z E C512 am NT g 8 f SUV sl sla 2 BOARD a s E a 8 LK ma gis Fels ais 5 TT LE E A g R2178 15K 5 a gt x Ds d E a 8p 3 R D 1N4002 2 100 I D401 IN4004 10401 4 2 st 3 P t IN out E N 1 0402 IN4004 GND gt j 3 5 02038 02048 l 5 2 Sle 2502240 25C2240 L 0215B8 2 02178 2 022 2 gall T n Rn 1 azoz8 Q2088 w 25 25 25 25 e FERE 25 479 25 47939 3 1943 1943 1943 1843 Iz 2 oj ola 8 9 x gt C 51 S seje A 5121 Sos m a om Rd m NOTICE REPLACE THIS u4o2 528 S coo CIRCUIT ENTIRELY Pi ea peon 11004 SER 7912 Pp als N al RN STs 1 STs cio Li ero 0404 IN4004 GND Ss 4 4 2 3 8 6 42 1 Our 4 14 10K vcc DR ha 3 ev 5 228 we 14VAC YEL mw _ E A cot tacos m 2 ETT co RNSB_47K D104B 4148 gt S Na 100U 10K N a 10K F2 paos SS Cz3B RM7B 10k N rj 1 OO om m C104B 470N 230VAC 2 1 CIO8B R1238 R188 10k N G m E OVAC BLK 2 ri 5 6 01028 4 S 230VAC E RED 14004 2 H Cip 2N3906 3 v
62. _27K 8 0206 FRIO7 y 2 3 on 5 5 10 0202 gt t x IE x 5 zi et 8 Ei i Rate 2 sov 25 224 21 Rul 8 uz 2 Su 2 2 amp u 2 8 R314 330E L310 SOc BASINS vok_in 8 SEK 712 N 1 1 C208 100N 254970 Nn n tps ee R 505 x w e ye 7 piscune 2 t T 8 CRUS alles sL 8 SL es Sua af s ep d C ays 5877 A ey ey ETET ETET 2 5 E assoc 1398 E sooj 2 A M 4 3 n 2240 3 r R312 330E L308 3 u ala o x THERMIC SWT BS 6 x 1 1 azn 0 50 nla nda Kx 5 gt bs 9 jz METER x x 5 AIRPAX 7 5 4 4 SANEM 9 PRIN us r Mx 5 ADJ 1 ain amp R217_15K TE E i R3 330E L307 2 Hi E s 18 2 m n a L M9L P siis 12V 43 0V 8 9 ejna N T T 2 SS a Tu CZ404 CHI 2 G L306 i FANI 2 2 amp 1 1 o _ or C30 tor peus E 1 SS En e gt 2802240 28C2240 deis Y azzi T U301 6144 x 3 e 1 3f a207 0208 25 25 L oO Pt 5 5 r N METER 4 25 4793 25 4793 1943 1843 zla a u 2 ud 12VF x E 9 5 5 E srE 5 2 in N n es R308 330E L304 4 WOUT E CZ407 e ps gt BRD 6 n S Xx 0 N g D c E 4 R307 330E L303 3 u Lol sw2 2405 CH2 4 4 4 4 4 4 ui 273 bs B FANZ H
63. ach channel red and yellow wires Set the Variac to the nominal mains voltage turn on the Amplifier then check with the Multimeter the AC supply voltages F1 F2 29 2Vac RED secondary wires 137 7Vac Re set the Variac at zero voltage turn off the amplifier and recon nect the supplies at each amplifier module e Set up the Variac slowly monitoring the oscilloscope screen it should display no signal if you notice a DC voltage or a protection trips check the amplifier as suggested in the ADVICES As soon as the 12VF supply circuit reaches its nominal value all cooling fans run at their minimum and the speaker output relais 1201 202 switch e When the Variac ac voltage reaches the nominal voltage verify the DC supplies as follow VCC 92 6Vdc VCC 924 6Vdc U501 pin 8 12 0 5Vdc U501 pin 4 12 0 5Vdc U403 pin 12 5 0 5Vdc If or more voltages don t correspond check the rectifiers ca pacitors and transformers disconnecting them from circuitry CHANNEL CHECK Be sure you have disconnected the load resistor Increasing the input signal also the output signal raise accordingly it must be symmet rical without visible distortion or oscillation as shown in figure note the figure is representative don t refer to the levels displayed If there is a distortion read the section ADVICES e When the input sig nal exceeds 20dBu 24Vpp on output the fans turn at their
64. als cz3 R117 10K N sy a 0414 IN4004 R413 10K a 1 C105 1000 R123 10K 5 RNB 10K os me i 5 t L 4 L3 Eu in 3 oo i m 9 M CI0315P R107 47E HGB768017 b cd s y uio3 x 1 N STATUS BOARD com E 2 jura E E E NJM2088 5 sw E E C10110U RIO 6BK L501 z 10 o POWER REO ake R510 C513 470 ii STEREG cz2 T 1 1562 mk 89 arose MODE 4 4 _ TETS 2 1 2 C107 100N 8 7 8 8 BRIDGE q cH 1503 2 985 71 SE 1 ug Vez Us Us 7 RR SOB K2 5 71 toon NIMaseoq 3080 NiMeoss NuM seo PROTECT b v 5 mi Fus E I g ATA C 12V IPCBA HQ7 7409A1 3 Sw2 1 PCB HO7 73671 Me 53 2 stereo am BRIDGE A o R504 5K11 2412 BVEEIB avi E502 47u R502 HGB768023 CH2 9800W AMPLIFIER MODULE f HGB768016 1 Co 22 4 ts s i E x E 21555 XLR INPUT N amp C505 470 FREESE 2 xD E T iT A E 2 5 T E a N 12 THERMIC SWITCH 95 C501 47U R50 SKI L uso 4 02148 02168 02188 02208 02228 02248 0226B8 02288 AIRPAX 671095 11 NJM4580D n 2sc 2sc 2sc 2sc 2sc 2sc 2sc 2sc C x m n cupo lt t 5200 J 5200 5200 2 5200 5200 2 5200 2 5200 2 5200 J CH1 t Re 2402 ewes OFFSET 08 1p azose az068 gt 1 1 1 1 1 1 a oT sc AD
65. ative don t refer to the levels displayed If there is a distortion read the H HHH H H section ADVICES e When the input sig nal exceeds 20dBu 24Vpp on output the fans turn at their maximum speed e Firstly you must check the channel without load after wards you must repeat the check with the loads attached the following table reports the approx maximum level obtainable with this amp OSCILLOSCOPE FIGURE TRACE setting TIMEBASE 2mS div AMPLITUDE 20V div out level in level no load 210Vpp 2 0dBu 1CH4E 184Vpp 1 7dBu 2CH 4E 170Vpp 1 0dBu Bridge 8E 343Vpp 0 6dBu LEVEL METER ADJUSTMENT e Check if the clip led lights at 2dBu on input 140Vpp on output if necessary adjust the trimmers W301 2 on display board OFFSET ADJUSTMENT e Set the input level at minimum no signal the output dc offset voltage must be within range 20mV if necessary adjust the VR201 trimmer for each channel to be within this range BIAS ADJUSTMENT No bias adjustment is necessary for this amplifier circuitry in any case the amplifier has the possibility to adjust it if necessary To check properly the bias proceed as follows Using a sinusoidal signal 1KHz or more and the 4E load attached wait till the heatsink temperature reaches about 60 c e Turn down the signal at the smallest intensity you can read on your oscilloscope trace connected at the amplifier output e
66. dio Generator Dual Trace Oscilloscope Digital Multimeter e 4E 1300W 8E 2200W 100E 150W resistors Variac Digital Thermometer not indispensable SETUP Connect the Variac between the Mains and the amplifier and set it at zero voltage Turn full counter clockwise the LEVEL potentiometers e Connect the audio generator to the channel inputs and set it to 1KHz 775mVrms OdBu sinusoidal signal Connect the two scope traces to the amplifier outputs before the relay and set them in DC at 50V div 2mS div SUPPLY CHECK Verify with the Multimeter the insulation between the heatsinks and all transistor collectors mounted on them placing the multimeter tips between the screw heads and the collector pins you can exclude an erroneus reading due to the insulation of the heatsink anodization Verify with the Multimeter the NTC RT1 and R1 paralleled resistor value it must be about 7Kohm at 25 c e Disconnect the amplifier module supplies of each channel red and yellow wires e Set the Variac to the nominal mains voltage turn on the Amplifier then check with the Multimeter the AC supply voltages Fi1 F2 29 2Vac RED secondary wires 173 10 e Re set the Variac at zero voltage turn off the amplifier and recon nect the supplies at each amplifier module Set up the Variac slowly monitoring the oscilloscope screen it should display no signal if you notice a DC voltage or a protection trips c
67. e f R313 330E L309 3 28 E 2 g 5 hn X 0204 lt m R312 330E L308 E 2 x THERMIC SWT amp 5 c 8T SSR n ud OR n 2 n Z n Z n MI 5 o 5 5 co gt i METER 8 3 AIRPAX 7 5 E M 8 t renis zs PRIN as zs PRIN i n ADJ 1 alo i M 07 amp R217 15 mE M E m ia w R3 330E L307 2 a Je 2 gt z 818 2 g n b n p fs 410 3 3 sue 12v ES E e I S 2 g N 2 2 Xx a tye CZ404 2 dE 3 3 3 3 3 3 3 I amp R310 330E L306 2 2 A 1 1 1 1 1 1 GE aan 91 1 n C301 tou DE A 0203 0204 LI 2 t 2 25 2240 25 2240 E azis 2 2 0221 2 02235 2 0225 2 a227 2 02289 2 eats dade 0301 BABI44 M 3 2 d 1 3 a207 a208 5 29A 25 25 25 29A 25 SLT PI 6 5 r METER 1 4 dee 25 4793 2504793 1943 1943 1943 1943 1943 1943 ala 2 a 5 2v 12VF X amp 18 B E a ADL 2 stes N N ele R308 330E L304 4 E CZ407 E b F om a S fs BRD 5 x E n N NI el PLN 12VE M N ES r R307 330E L303 3 fal sw e 2405 CH2 x clo i i 4 i i gt e Y tt 2 IR __ vcc y R306 330E L302 s C417 tou Q401 m Ha RITU 2v 2 91 4 m r1 2N5401 9 54 M C105 1000 R122 10K 23 R105 10K 1 jm m E E crt 47K 0104 4148 I R305 330E L301 A x PTH 9 g Ds a ey pt 4 g
68. e VR202 trimmer e Finally set the input level at minimum and verify with the multimeter attached across an emitter resistance p e R232 that the dc voltage doesn t exceed 10mv ADVICES If you have determinate that the problem is a short on a rail you must check the output transistors To determine which transistor devices are bad use a soldering iron to lift one leg of each emitter pin and measure the resistance across emitter and collector of each device Unsolder and lift one leg of each base pin and check the base collector resistance Replace any device that measure as a short e If all the transistors are OK unsolder and lift one leg of each diode and check them Check the circuit board for open foil traces Use the Multimeter to check the resistors particularly the base and emitter resistors of damaged transistor e If the input sinewave appears to be distorted during the negative Cycle you can assume that the problem is located somewhere in the circuitry of the positive rail If the positive cycle appears distorted you can assume that the problem is in the circuitry of the negative rail The dc voltages printed on the schematics are measured with the amplifier in steady state without input signal and nominal mains volt age supply it can be useful to localize a damage PROCON1500p Test procedures PRECAUTION To prevent short circuit during any test the oscilloscope must be EARTH INSULATED this
69. ector Variac uM e Check if the clip led lights at 2dBu on input 80Vpp on output if POWER ON 1 red LED p Thermometer not indispensable necessary adjust the trimmers W301 2 on display board BRIDGE 1 red LED ETUP OFFSET ADJUSTMENT INDICATORS PROTECT 1 red LED Connect the Variac between the Mains the amplifier and set Set the input level at minimum no signal the output dc offset LEVEL 2 x 5 LED met it at zero voltage voltage must be within range 20mV if necessary adjust the VR201 eX n meters e Turn full counter clockwise the LEVEL potentiometers trimmer for each channel to be within this range LIMIT 1 red LED e Connect the audio generator to the channel inputs and set it to BIAS ADJUSTMENT iKHz 775mVrms OdBu sinusoidal signal k 2 REDE IN 1 XLR F 1 JACK in parallel for each channel e Connect the two scope traces to the amplifier outputs before the No bias adjustment is necessary for this amplifier circuitry CONNECTORS OUT 2 x BINDING POST 1 SPEAKON for each channel 400 1500 relay and set them in DC at 20V div 2mS div ADVICES 1 SPEAKON for each channel 1 SPEAKON eae output 1800 2200 SUPPLY CHECK e If you have determinate that the problem is a short on a rail you POWER SUPPLY see label on the unit e Verify with the Multimeter the insulation between the heatsinks and Must check the output transistors M DIMENSIONS mm WxHxD 483x88x366 483x88x428 483x88x456 all transistor collectors mounted on
70. ee specifications any upper volt age can be cause of damage VISUAL CHECK Use compressed air to clear dust in the amplifier chassis e Before proceed to supply the amplifier check visually the internal assembly if appears an evident damage find the most possible rea sons that cause it e Check the wiring cables for possible interruptions or shorts If the damage has burnt a printed circuit board don t try to repair it replace with a new one TESTING GEAR Audio Generator Dual Trace Oscilloscope Digital Multimeter e 4E 800W 8E 1300W 100E 90W resistors Variac Digital Thermometer not indispensable SETUP e Connect the Variac between the Mains and the amplifier and set it at zero voltage e Turn full counter clockwise the LEVEL potentiometers Connect the audio generator to the channel inputs and set it to 1KHz 775mVrms OdBu sinusoidal signal e Connect the two scope traces to the amplifier outputs before the relay and set them in DC at 50V div 2mS div SUPPLY CHECK Verify with the Multimeter the insulation between the heatsinks and all transistor collectors mounted on them placing the multimeter tips between the screw heads and the collector pins you can exclude an erroneus reading due to the insulation of the heatsink anodization Verify with the Multimeter the NTC RT1 and R1 paralleled resistor value it must be about 7Kohm at 25 c e Disconnect the amplifier module supplies of e
71. eo 2 x Y x gt n y GND2 R312 330E L308 eae 9 x TN O 51V nla nla 5 u aan N N bt a 550 METER S 5 0702 a z 2541220 EARS Sls we joje 1 2N3906 pen 5 R31 330E L307 4 2 R716_10K R714 100K5 gt 2 3 E a z 2 9 E z 2 EY 4 4 5 R310 330E L306 2 1 _ 04 00 C301 100 n 3 ET L3 ans 2 2 U301 144 M 1 25 25 R309 330E L305 E 1 a pee E 8 METER E 1941 1941 J im s x S a Wwe E 7 ADJ 2 El 0 Nr N p R308 330E L304 ouT a 1 MODE 0794 sus den e all e T N N amp 2 5 go 558 2 2719 000 c a 1 gt ommo 4 2 5 one a c R306 330E L302 1 TE 2 g 0703 4148 7 5 100U x 2 5 R305 330E L301 N ct n U703 2103 R527 47K NJMZ068 PCBS 07 74071 VcC 70 R626 47K 2 m 4 HGB768017 5 RED STATUS BOAR 0101 a E S gt NJMAS80D 0214 0216 MM R501 KK2 25 25 14 Y yo 5198 2 se 2 eyes gt L502 EA E a 1 1 n R502 1 2 4 ayer 8 EK ejan x z c3 RRO R503 1K2 zF BIS prj E LR 2 OFFSET st pa 2 P 0210 5 mL m t 25C2690 sw2 de El 0 51V PCBs 07 73671 L FS Y 1 2 stereo 2 3 C204 100P 24 m 4 MODE DE g czas E u ET ae BRIDGE aftr a x olay bs 2 N3 bs R204 Sk 2 lkt Sy
72. heck the amplifier as suggested in the ADVICES As soon as the 12VF supply circuit reaches its nominal value all cooling fans run at their minimum and the speaker output relais 2201 202 switch e When the Variac ac voltage reaches the nominal voltage verify the DC supplies as follow VCC 115 8Vdc VCC 115 8Vdc U501 pin 8 12 0 5Vdc U501 pin 4 12 0 5Vdc U403 pin 12 54 0 5Vdc If one or more voltages don t correspond check the rectifiers ca pacitors and transformers disconnecting them from circuitry CHANNEL CHECK Be sure you have disconnected the load resistor Increasing the input signal also the output signal raise accordingly it must be symmetrical OSCILLOSCOPE FIGURE without visible distor tion or oscillation as shown in figure note the figure is repre sentative don t refer tothelevels displayed If there is a distortion read the section AD VICES e When the input sig nal exceeds 20dBu 20Vpp on output the fans turn at their maximum speed Firstly you must check the channel without load afterwards you must repeat the check with the loads attached the following table reports the approx maxi mum level obtainable with this amp TRACE setting TIMEBASE AMPLITUDE 2mS div 20V div out level in level no load 225Vpp
73. mplifier with the speakers connected use the appropriate load resistors only BE CAREFUL increasing the Variac you must not exceed the nominal mains voltage plus its tolerance see specifications any upper volt age can be cause of damage VISUAL CHECK Use compressed air to clear dust in the amplifier chassis e Before proceed to supply the amplifier check visually the internal assembly if appears an evident damage find the most possible rea sons that cause it e Check the wiring cables for possible interruptions or shorts e If the damage has burnt a printed circuit board don t try to repair it replace with a new one TESTING GEAR e Audio Generator Dual Trace Oscilloscope Digital Multimeter e 4E 1100W 8E 2000W 100E 120W resistors e Variac e Digital Thermometer not indispensable SETUP e Connect the Variac between the Mains and the amplifier and set it at zero voltage e Turn full counter clockwise the LEVEL potentiometers e Connect the audio generator to the channel inputs and set it to 1KHz 775mVrms 0dBu sinusoidal signal Connect the two scope traces to the amplifier outputs before the relay and set them in DC at 50V div 2mS div SUPPLY CHECK Verify with the Multimeter the insulation between the heatsinks and all transistor collectors mounted on them placing the multimeter tips between the screw heads and the collector pins you can exclude an erroneus reading due to the insulation of the
74. ni L 2 No2 nU sS sll 2 gt EN mu RU Re sue R245 SE R202 5K1 C202 47U m E 25C N c N g 1 7 nm HGB768015 1 D R502 T N aL 7497 Rl gut 2 rs N D207 4148 XLR INPUT t 470 cog ee R625 5 580P 7 E i x LI n ator SU TS BOARD iks 317 R125 22K D208 4148 2 gt m N 2 x 1 2 0102 H 4 biis Pt Sh wiz 9 R201 5K1 C201 470 U201 5 FEE 25 2240 vir bs SIAD ks a L 11 NJM4580D T wis 1 1 ip M 254970 nrn gt o Sin gt o Sn s 3 E NJM4SB0D 9 2j 220100 e m of foe alls u 245551 2 HEH RUR NT es CH1 EY Y Ego ise S e 067v severe amp 8 amp ERES n e 9 eic o x 2 2 R507 47E gt 1 0206 GND S S z 52 is cz103 S tae Y 1 N S 2 i mus pi fale In N Yl INPUTS 104 100P 0602 ns 2 0602 Beosddk 3 a T gt K 2541220 2N3308 PEERS 3 Y I Ye M BLK 9104 Ski REIB OK 4 y 0501 10K R08 22K DW501 S34V 8 2 g 32 5 RIOZ 5k C102 470 243304 1 2 2 1 JE 1 2 2 a103 a104 9 A 2 55 a 5 8 NJM2068 DA wiMasop 2552240 ZaL2240 215 2 0217 i CIOS 470 Ne R P 1f 25 25 8 2 2sc26s0 2 2 So 1913 1943 PCB 07 73471 JK101 2 6 N 12v
75. nnecting them from circuitry CHANNEL CHECK Be sure you have disconnected the load resistor Increasing the input signal also the output signal raise accordingly it must be symmet rical without visible distortion or oscillation as shown in figure note the figure is representative don t refer to the levels displayed If there is a distortion read the H HHH H H section ADVICES e When the input sig nal exceeds 20dBu 20Vpp on output the fans turn at their maximum speed e Firstly you must without load after wards you must repeat the check with the loads attached the following table reports the approx maximum level obtainable with this amp OSCILLOSCOPE FIGURE TRACE setting TIMEBASE 2mS div AMPLITUDE 20V div out level in level no load 139Vpp 3 0dBu 1CH 4E 117Vpp 1 5dBu 2CH 4E 109Vpp 0 9dBu Bridge 8E 214Vpp 0 7dBu LEVEL METER ADJUSTMENT e Check if the clip led lights at 1dBu on input 90Vpp on output if necessary adjust the trimmers W301 2 on display board OFFSET ADJUSTMENT e Set the input level at minimum no signal the output dc offset voltage must be within range 20mV if necessary adjust the VR201 trimmer for each channel to be within this range BIAS ADJUSTMENT e No bias adjustment is necessary for this amplifier circuitry ADVICES If you have determinate that the problem is a short on
76. o be within this range BIAS ADJUSTMENT No bias adjustment is necessary for this amplifier circuitry in any case the amplifier has the possibility to adjust it if necessary To check properly the bias proceed as follows Using a sinusoidal signal 1KHz or more and the 4E load attached wait till the heatsink temperature reaches about 60 c Turn down the signal at the smallest intensity you can read on your oscilloscope trace connected at the amplifier output e Zoom in the crossing region using the amplitude timebase and trigger controls of your oscilloscope If you see a distortion try to eliminate it adjusting the VR202 trimmer e Finally set the input level at minimum and verify with the multimeter attached across an emitter resistance p e R232 that the dc voltage doesn t exceed 10mv ADVICES If you have determinate that the problem is a short on a rail you must check the output transistors To determine which transistor devices are bad use a soldering iron to lift one leg of each emitter pin and measure the resistance across emitter and collector of each device Unsolder and lift one leg of each base pin and check the base collector resistance Replace any device that measure as a short e If all the transistors are OK unsolder and lift one leg of each diode and check them e Check the circuit board for open foil traces Use the Multimeter to check the resistors particularly the base and emitter resist
77. oard OFFSET ADJUSTMENT e Set the input level at minimum no signal the output dc offset voltage must be within range 20mV if necessary adjust the VR201 trimmer for each channel to be within this range BIAS ADJUSTMENT No bias adjustment is necessary for this amplifier circuitry in any case the amplifier has the possibility to adjust it if necessary To check properly the bias proceed as follows Using a sinusoidal signal 1KHz or more and the 4E load attached wait till the heatsink temperature reaches about 60 c Turn down the signal at the smallest intensity you can read on your oscilloscope trace connected at the amplifier output Zoom in the crossing region using the amplitude timebase and trigger controls of your oscilloscope If you see a distortion try to eliminate it adjusting the VR202 trimmer e Finally set the input level at minimum and verify with the multimeter attached across an emitter resistance p e R232 that the dc voltage doesn t exceed 10mv ADVICES e If you have determinate that the problem is a short on a rail you must check the output transistors To determine which transistor devices are bad use a soldering iron to lift one leg of each emitter pin and measure the resistance across emitter and collector of each device Unsolder and lift one leg of each base pin and check the base collector resistance Replace any device that measure as a short e If all the transistors are OK unsolde
78. ors of damaged transistor e If the input sinewave appears to be distorted during the negative Cycle you can assume that the problem is located somewhere in the circuitry of the positive rail e If the positive cycle appears distorted you can assume that the problem is in the circuitry of the negative rail e The dc voltages printed on the schematics are measured with the amplifier in steady state without input signal and nominal mains volt age supply it can be useful to localize a damage COP PROCON1250p Test procedures PRECAUTION To prevent short circuit during any test the oscilloscope must be EARTH INSULATED this occurs because some test require to connect its probe to the amplifier output non compliance may cause damages to oscilloscope inputs circuitry Before removing or installing any modules and connectors disconnect the amplifier from AC MAINS and measure the DC supply voltages across each of the power supply capacitors If your measurement on any of the caps is greater than 10Vdc connect a 100E 90W resistor across the applicable caps to discharge them for your safety Remember to remove the discharge resistor immediately after discharging caps Do not power up the amplifier with the discharge resistor connected e Do not check the amplifier with the speakers connected use the appropriate load resistors only BE CAREFUL increasing the Variac you must not exceed the nominal mains voltage plus its tolerance s
79. r and lift one leg of each diode and check them Check the circuit board for open foil traces Use the Multimeter to check the resistors particularly the base and emitter resistors of damaged transistor e If the input sinewave appears to be distorted during the negative cycle you can assume that the problem is located somewhere in the circuitry of the positive rail If the positive cycle appears distorted you can assume that the problem is in the circuitry of the negative rail The dc voltages printed on the schematics are measured with the amplifier in steady state without input signal and nominal mains volt age supply it can be useful to localize a damage PROCON1800p Test procedures PRECAUTION To prevent short circuit during any test the oscilloscope must be EARTH INSULATED this occurs because some test require to connect its probe to the amplifier output non compliance may cause damages to oscilloscope inputs circuitry Before removing or installing any modules and connectors disconnect the amplifier from AC MAINS and measure the DC supply voltages across each of the power supply capacitors If your measurement on any of the caps is greater than 10Vdc connect a 100E 120W resistor across the applicable caps to discharge them for your safety Remember to remove the discharge resistor immediately after discharging caps Do not power up the amplifier with the discharge resistor connected e Do not check the a
80. speaker output relais 1201 202 switch e When the Variac ac voltage reaches the nominal voltage verify the DC supplies as follow VCC 97 6Vdc VCC 974 6Vdc U501 pin 8 12 0 5Vdc U501 pin 4 12 0 5Vdc U403 pin 12 5 0 5Vdc If one or more voltages don t correspond check the rectifiers ca pacitors and transformers disconnecting them from circuitry CHANNEL CHECK Be sure you have disconnected the load resistor Increasing the input signal also the output signal raise accordingly it must be symmet rical without visible distortion or oscillation as shown in figure note the figure is representative don t refer to the levels displayed If there is a distortion read the section ADVICES e When the input sig nal exceeds 20dBu 24Vpp on output the fans turn at their maximum speed e Firstly you must check the channel trace setting without load after TIMEBASE 2mS div AMPLITUDE 20V div wards you must repeat the check with the loads attached the following table reports the approx maximum level obtainable with this amp OSCILLOSCOPE FIGURE out level in level no load 189Vpp 1 0dBu 1CH 4E 166Vpp 0 7dBu 2CH 4E 154Vpp 0 2dBu Bridge 8E 307Vpp 0 0dBu LEVEL METER ADJUSTMENT e Check if the clip led lights at 2dBu on input 130Vpp on output if necessary adjust the trimmers W301 2 on display b
81. t signal also the output signal raise accordingly Both channels 8 BRIDGED 400 750 VO ooru because some test reguli to sonnent Steal without ee Rne its probe to the amplifier output non compliance may cause damages witnou d ELECTRICAL SPECIFICATIONS TE 1000 1250 1500 1800 2200 Oscilloscope inputs circuitry e Before removing or installing any modules and connectors disconnect 835 Shown figure INPUT SENSITIVITY 0aB 0 775V the amplifier from AC MAINS and measure the DC supply voltages across note the figure is INPUT IMPEDANCE 10 kOhms balanced each of the power supply capacitors If your measurement on any of e E _ the caps is greater than 10Vdc connect a 100E 60W resistor across eter to the levels FREQUENCY RESPONSE 10 50000 Hz 50 508 the applicable caps to discharge them for your safety Remember to displayed If there is VOLTAGE GAIN 32dB 33dB 35dB 37dB 37dB 39dB remove the discharge resistor immediately after discharging caps 8 distortion read the H EAEE T SLEW 22 V ms not power up the amplifier with the discharge resistor connected section ADVICES DANPINC FATOR 400 1 tkHz 80h e Do not check the amplifier with the speakers connected use the Pes mud decer 24UU7 2 oUnms appropriate load resistors only nal exceeds u CROSSTALK 82 dB 1KHz e BE CAREFUL increasing the Variac you must not exceed the nominal
82. them placing the multimeter tips To determine which transistor devices are bad use a soldering iron between the screw heads and the collector pins you can exclude 0 lift one leg of each emitter pin and measure the resistance across WEIGHT kg 13 19 18 19 5 21 235 25 erroneus reading due to the insulation of the heatsink anodization emitter and collector of each device Unsolder and lift one leg of each e Verify with the Multimeter the NTC RT1 and R1 paralleled resistor base pin and check the base collector resistance Replace any device value it must be about 1080ohm at 25 c that measure as a short e Disconnect the amplifier module supplies of each channel red and If all the transistors OK unsolder and lift one leg of each diode yellow wires and check them TRANSISTOR PACKAGES e Set the Variac to the nominal mains voltage turn on the Amplifier Check the circuit board for open foil traces 092 T0126 T0220 T0264 e Use the Multimeter to check the resistors particularly the base and FRONT VIEWS BOTTOM then check with the Multimeter the AC supply voltages 1 2 29 2Vac RED secondary wires 87 9Vac e Re set the Variac at zero voltage turn off the amplifier and recon nect the supplies at each amplifier module e Set up the Variac slowly monitoring the oscilloscope screen it should displa
83. tmeter 2Z0KOhm V Soldering point 4 Supply voltage iL Logic supply ground e Male connector s lest point 1 Analog supply ground e gt Female connector lt Flag joined with one or more flags Chassis ground se rvi C e m a n U a M F faston connector with the same signal name inscribed ground S h e m ati C d a 9 m S ATTENTION Observe precautions when handling electrostatic sensitive devices GENERALMUSIC S p A Sales Division 47842 S Giovanni in Marignano RN ITALY Via delle Rose 12 Phone 39 0 541 959511 Fax 39 0 541 957404 Internet www generalmusic com CODE 270312 GENERALMUSIC OP If one or more voltages don t correspond check the rectifiers ca pacitors and transformers disconnecting them from circuitry PROCON PLUS SERIES TECHNICAL SPECIFICATIONS PROCON400p Test procedures POWER SPECIFICATIONS 400P 750P 1000P 1250P 1500 1800 2200 CHANNEL CHECK EIA output power 8ohm 125 125 215 215 300 300 375 375 450 450 550 550 650 650 PRECAUTION e Be sure you have disconnected the load resistor _ 1kHz THD maximum 1 4ohm 200 200 375 375 550 550 625 625 750 750 900 900 1100 1100 To prevent short circuit during any test the oscilloscope must be Increasing the inpu
84. to localize a damage PROCON2200p Test procedures PRECAUTION To prevent short circuit during any test the oscilloscope must be EARTH INSULATED this occurs because some test require to connect its probe to the amplifier output non compliance may cause damages to oscilloscope inputs circuitry e Before removing or installing any modules and connectors disconnect the amplifier from AC MAINS and measure the DC supply voltages across each of the power supply capacitors If your measurement on any of the caps is greater than 10Vdc connect a 100E 150W resistor across the applicable caps to discharge them for your safety Remember to remove the discharge resistor immediately after discharging caps Do not power up the amplifier with the discharge resistor connected e Do not check the amplifier with the speakers connected use the appropriate load resistors only BE CAREFUL increasing the Variac you must not exceed the nominal mains voltage plus its tolerance see specifications any upper volt age can be cause of damage VISUAL CHECK Use compressed air to clear dust in the amplifier chassis e Before proceed to supply the amplifier check visually the internal assembly if appears an evident damage find the most possible rea sons that cause it e Check the wiring cables for possible interruptions or shorts If the damage has burnt a printed circuit board don t try to repair it replace with a new one TESTING GEAR Au
85. tu 12 L le vec 4 2 5 M R121 10K gt R306 330E L302 2be ral Q401 Sm E M av 4t LLI 9 4 gH 2N5401 9 iv C105 1000 R122 10K c 5 RIOS 10k 2 sT 5 DE RIS 47 0104 4148 24x I R305 330E L301 i x Ts Swan ur j s py n 5 ala cz3 R17 10K E ADM em 0414 IN4004 R413 10K oJ C104 470N aT gt o to 1 C106 1000 R123 10K 5 R18 10K dios SHE frees 3 x x 2 DE i Fauno CES CELA 2xs550 Biz RIRPAX 577065 2 ET PI aia nne rok 75995 3080 l 2 ma i 3 qM 1 3 2 Riog zak M CIO315P RI07 47E N x 2N5551 2 5 czi 712V NJMA580D HGB768017 aos i EAT E al 9s 4 1 z 5 2 a NJMZ068 t i 28C2690 n 3 R102 100K STATUS BOARD czwi E 2 Y 2 NJM2088 5 ewe 2 C10110U R10158K L501 8 7 16 a IE 5 Pets R510 27K C513 470 ii STEREd czz POWER i JE NR i s 02 peice MODE ceu _ s 4 BRIDGE q oH 4 Ia pi C107 100N 8 7 8 8 L503 czw2 zaja 5 1 yio2 UI03 104 d RS503 K2 2 i Or C108 100N NJMaseog 3080 NJM2068 NJM4s80 PROTECT e Le H 4 4 4 4 5 CZ4W DA NUM4580D IPCBA HQ7 74161 C 12v y IPCBA HQ7 7416A1 3 swz 1 PCB H07 73671 Ke oF ape Bus 130 3 Y BRIDGE r 14 ii RS04 EZME GEI 502 47UR502 Tod HGB768029 CH2 500W AMPLIFIER MODULE E HGB768016 t 1 27 2152 4 t
86. ual Red BIk Binding Post HGB110300 12Vdc 0 25A 80x25mm Fan Procon 400P 1000P HGB110302 12Vdc 0 45A 80x25mm Fan Procon 1250P 2200P HGB110305 Thermostat 65 NO 67F065 Airpax HGB110306 Thermostat 95 NC 67L095 Airpax 110360 Fan Grid 80mm HGB030004 10000uF 160V Electrolytic Capacitor Screw Terminal Procon2200P HGB030003 10000uF 120V Electrolytic Capacitor Screw Terminal Procon1800P HGB030002 10000uF 110V Electrolytic Capacitor Screw Terminal Proconi250P 1500P HGB030001 10000uF 100V Electrolytic Capacitor Screw Terminal Procon1000P Soft Start Board HGB768015 Soft Start Board Pcb HQ7 7365 Procon 1000P 2200P HGB110303 Relay 12V 1 Switch 30A 240Vac NO 080156 1N4002 1A 100V Rectifier Diode 030862 6800uF 25V Electrolytic Capacitor HGB061002 40E 10W 5 Wire Resistor VCC Capacitor Board HGB768035 VCC Capacitor Board Pcb HQ7 7349 Procon 400P HGB768032 VCC Capacitor Board Pcb HQ7 7349 Procon 750P 030884 10000uF 80V Electrolytic Capacitor Snap In Procon750P HGB030005 12000uF 63V Electrolytic Capacitor Snap In Procon400P HGB768016 XLR Input Board Pcb HQ7 7347 All Models HGB140002 Hor Female XLR Socket Display Board HGB768001 Display Board PCBA HQ7 7407 AII Models HGB075001 10KA RK16 Rotary Potentiometer K15 40CLK HGB100001 BA6144 5 Point Led Level Meter 080705 3mm Red Led 080706 3mm Green Led 080710 3mm Yellow Led Status Board HGB768017 Status Board PCBA HQ7 7367 All Models 080705
87. wo asterisk Third level part of previous listed second level part Three asterisk Any request for not above mentioned part must encompass specific description including 1 Model name 2 Section name 3 Module code 4 Reference name 5 Quantity number Il
88. y no signal if you notice a DC voltage or a protection trips check the amplifier as suggested in the ADVICES e As soon as the 12VF supply circuit reaches its nominal value all cooling fans run at their minimum and the speaker output relais J201 202 switch e When the Variac ac voltage reaches the nominal voltage verify the DC supplies as follow VCC 59 6Vdc VCC 59 6Vdc U101 pin 8 12 40 5Vdc U101 pin 4 12 0 5Vdc U403 pin 3 12 40 5Vdc emitter resistors of damaged transistor e If the input sinewave appears to be distorted during the negative cycle you can assume that the problem is located somewhere in the circuitry of the positive rail If the positive cycle appears distorted you can assume that the problem is in the circuitry of the negative rail The dc voltages printed on the schematics are measured with the amplifier in steady state without input signal and nominal mains volt age supply it can be useful to localize a damage PROCON750p Test procedures PRECAUTION To prevent short circuit during any test the oscilloscope must be EARTH INSULATED this occurs because some test require to connect its probe to the amplifier output non compliance may cause damages to oscilloscope inputs circuitry Before removing or installing any modules and connectors disconnect the amplifier from AC MAINS and measure the DC supply voltages across each of the power supply capacitors If your measurement

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