InterM-PA9348_VD0504 pwramp.pdf part of InterM PA9348 & VD0504 InterM-PA9348_VD0504 pwramp.pdf, power amplifier text manual preview

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SERVICE
MANUAL

P U B L I C A D D R E S S P O W E R

AMPLIFIER
PA-9348
CONTENTS
Electrical Adjustment Procedure ЇЇЇЇЇЇЇЇЇЇЇЇЇЇ1
Specifications ЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇ2
Electrical Parts List ЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇ3, 4,
Top and Bottom View of P.C. Board ЇЇЇЇЇЇЇЇЇЇЇЇЇ5, 6
Wiring Diagram ЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇ7
Block Diagram ЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇ8
Schematic Diagram ЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇ9, 10
Exploded View of Cabinet & Chassis / Mechanical Parts List ЇЇ11, 12
Ass'y Drawing ЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇЇ13, 14
ELECTRICAL ADJUSTMENT PROCEDURE

IDLE CURRENT

A. Connection

B. Adjustment
ґ Adjust SVR11, SVR12 so that the current through the R68, R69 become 4~7mV.
ґ When that voltage across the Positive "TP" to Negative "TP" becomes 4~7mV, the current becomes
18~32mA.

1
SPECIFICATIONS

ELECTRICAL
Ї Rated Output Power (THD 5%, 1kHz) .......................................................................................................480W
Ї Frequency Response (+1/-3dB) .....................................................................................................70Hz~18kHz
Ї Total Harmonic Distortion (1/2 Power, 1kHz)....................................................................................1% or lower
Ї High Pass Filter (400Hz) .............................................................................................................................ґ3dB
Ї Gain Control..............................................................................................................................................ґ12dB
Ї Signal-to-Noise Ratio...................................................................................................................90dB or higher
Ї Input Sensitivity/Impedance ..................................................................................................1V/10k Balanced
Ї Output Voltage/Impedance .......................................................EC, JAPAN: 4/43.8V, 10.2/70V, 20.8/100V
Ї Power Consumption ...................................................................USA/CANADA: 4/43.8V, 8/62V, 10.2/70V

GENERAL
Ї Power Source..........................................................................100ґ120VAC or 220ґ240VAC; 50/60Hz, 24VDC
Ї Power Consumption .................................(Supplied AC mains transformer depends on country requirements)
Ї Power Consumption.................................................................................................................600W(1/8 power)
Ї Power Consumption.................................................................................................................900W(1/3 power)
Ї Power Consumption ...............................................................................................................1450W(full power)
Ї Weight..................................................................................................................................................22kg/48lb
Ї Dimensions ..........................................................................482(W)x132(H)x280(D)mm/19(W)x5.2(H)x11(D)in

* Specifications and design subject to change without notice.

2
ELECTRICAL PARTS LIST

Ref No. Part No. Description Value Ref No. Part No. Description Value
MAIN B'D (4003473800) Q15-16 2008606107-T TR,SW,NPN,150MA,50V,KTC3206,TO C3206Y
Q14 2008606108-T TR,SG,NPN,100MA,120V,KTC3200,T C3200BL
Q36 2008405999 TR,SG,NPN,100MA,250V,2SC4001,T 2SC 4001 Q12 2008606998-T TR,SG,NPN,300MA,20V,KTD1302,TO D1302
Q31 2028406113 TR,PW,NPN,3A,60V,KTD2058,TO-22 D2058Y R46-47 3039102575-T RES,MF,1K,2W,5%,RA R,TA 1K 2W
Q17-18 2028407990 TR,PW,NPN,1.5A,180V,KTC4370A,T C4370A R82 3039200575-T RES,MF,20,2W,5%,RA R,TA 20 2W
Q21-30 2028443880 TR,PW,NPN,15V,180V,2SC3856,TO- C3856 R41 R92 3039271575-T RES,MF,270,2W,5%,RA R,TA 270 2W
D21 2058100996 DIODE,RE,1A,800V,1N4006,DO-41, 1N 4006 R42 3039479575-T RES,MF,4.7,2W,5%,RA R,TA 4.7 2W
D20 2058300980 DIODE SCHOTTKY MBR4060PT MBR4060 C15-16 C18 3409210071-T CAP,E,SM,SG,85C,10UF,50V,M,5P, Oct.50
D11-19 2058304100 DIODE,SW,100MA,75V,1N4148M,DO- 1N4148 C24-25 C27-29
ZD11 2058501076 DIODE,ZN,500MW,BM,7.5V,DO-35,T UZ 7.5BM C22 3409210141-T CAP,E,SM,SG,85C,100UF,25V,M,6P 100/25
ZD15-16 2058502056 DIODE,ZN,500MW,BM,5.6V,DO-35,T UZ 5.6BM C26 3409210171-T CAP,E,SM,SG,85C,100UF,50V,M,8P 100/50
ZD13 2058502082 DIODE,ZN,500MW,BM,8.2V,DO-35,T UZ 8.2BM C12-13 3409210971-T CAP,E,SM,SG,85C,1UF,50V,M,5P,T Jan.50
ZD14 2058502100 DIODE,ZN,500MW,BM,10V,DO-35,TA UZ 10BM C30 3409222141-T CAP,E,SM,SG,85C,220UF,25V,J,8P 220/25
ZD17 2058502120 DIODE,ZN,500MW,BM,12V,DO-35,TA UZ 12BM C11 3409222971-T CAP,E,SM,SG,85C,2.2UF,50V,M,5P 2.2/50
ZD12 ZD18 2058502160 DIODE,ZN,500MW,BM,16V,DO-35,TA UZ 16BM C31 3409233071-T CAP,E,SM,SG,85C,33UF,50V,M,6P, 33/50
ZD19 2058502240 DIODE,ZN,500MW,BM,24V,DO-35,TA UZ 24BM C17 3409247071-T CAP,E,SM,SG,85C,47UF,50V,M,6P, 47/50
ZD21 2058512150 DIODE,ZN,1W,BM,12V,DO-41,TA 12V 1W C19 C109 3409247971-T CAP,E,SM,SG,85C,4.7UF,50V,M,5P 4.7/50
ZD20 2058512190 DIODE,ZN,1W,BM,10V,DO-41,TA 10V 1W CR15 3509101231-A CAP,CE,HI-DI,Y5P,100PF,50V,K,A 100P
U11 U14 2118010590 IC,OP AMP,NJM4558D,DIP8 4558D CR13 3509121231-A CAP,CE,HI-DI,Y5P,120PF,50V,K,A 120P
U12 2118220988 IC,OP AMP,NJM4580D,DIP8 4580D CR16-17 3509471231-A CAP,CE,HI-DI,Y5P,470PF,50V,K,A 470P
U13 2128610900 IC,VOLT REG,15V,1A,7815,TO-220 7815 CR14 3529050311-A CAP,CE,TEMP,SL,5PF,50V,C,AX,TA 5P
TH11-12 2438209031 THERMIST,NTC,50OHM,125C TH50K CR11-12 3539102231-A CAP,CE,SEMI,Y5P,1000PF,50V,K,A 1000P
IPT11 2808098300 TRANS,IPT,150OHM,515/515OHM I.P.T(PA-9324) CR18-21 3539104531-A CAP,CE,SEMI,Y5V,0.1UF,50V,Z,AX 0.1u
R75 3003120953 RES,MF,1.2K,1/5W,1%,AX N,TA 1.2K 1% CR1-2 3539332331-A CAP,CE,SEMI,Y5P,3300PF,16V,M,A 3300P
R74 3003324953 RES,MF,3.24K,1/5W,1%,AX N,TA 3.24K 1%
R76 3003866953 RES,MF,8.66K,1/5W,1%,AX N,TA 8.66K 1% LED DRIVER B'D (4003473810)
R70 3003909953 RES,MF,9.09K,1/5W,1%,AX N,TA 9.09K 1% D101 2058304100 DIODE,SW,100MA,75V,1N4148M,DO- 1N4148
R83 R90 3009102973 RES,MF,1K,1/5W,5%,AX N,TA 1K ZD101 2058502091 DIODE,ZN,500MW,BM,9.1V,DO-35,T UZ 9.1BM
R11-13 R16-20 3009103973 RES,MF,10K,1/5W,5%,AX N,TA 10K ZD102-103 2058502120 DIODE,ZN,500MW,BM,12V,DO-35,TA UZ 12BM
R24 R26 R29 U101-102 2118010590 IC,OP AMP,NJM4558D,DIP8 4558D
R79 R81 LD101-102 2300050105 LED,RND 5MM,RED,DIF,1U,ST2.5 RED
R21-22 3009104973 RES,MF,100K,1/5W,5%,AX N,TA 100K LD103-104 2300052105 LED,RND 5MM,GRN,DIF,1U,ST2.5 GRE
R73 R80 R112 3004220953 RES,MF,220,1/5W,1%,AX N,TA 220 1%
R25 3009182973 RES,MF,1.8K,1/5W,5%,AX N,TA 1.8K R105 3009102973 RES,MF,1K,1/5W,5%,AX N,TA 1K
R33 3009183973 RES,MF,18K,1/5W,5%,AX N,TA 18K R107 R125 3009103973 RES,MF,10K,1/5W,5%,AX N,TA 10K
R50-51 3009201973 RES,MF,200,1/5W,5%,AX N,TA 200 R106 R108 R123 3009104973 RES,MF,100K,1/5W,5%,AX N,TA 100K
R30 3009202973 RES,MF,2K,1/5W,5%,AX N,TA 2K R113 3009105973 RES,MF,1M,1/5W,5%,AX N,TA 1M
R57-58 3009203973 RES,MF,20K,1/5W,5%,AX N,TA 20K R124 3009152973 RES,MF,1.5K,1/5W,5%,AX N,TA 1.5K
R48-49 3009220973 RES,MF,22,1/5W,5%,AX N,TA 22 R101 R104 3009183973 RES,MF,18K,1/5W,5%,AX N,TA 18K
R56 R59 3009222973 RES,MF,2.2K,1/5W,5%,AX N,TA 2.2K R116-121 3009202973 RES,MF,2K,1/5W,5%,AX N,TA 2K
R88 3009223973 RES CF 22K 1/5W J N 22K R110 3009222973 RES,MF,2.2K,1/5W,5%,AX N,TA 2.2K
R38 R54-55 3009271973 RES,MF,270,1/5W,5%,AX N,TA 270 R109 3009302973 RES,MF,3K,1/5W,5%,AX N,TA 3K
R39-40 R86 3009330973 RES,MF,33,1/5W,5%,AX N,TA 33 R102 3009333973 RES,MF,33K,1/5W,5%,AX N,TA 33K
R27 3009331973 RES,MF,330,1/5W,5%,AX N,TA 330 R122 3009472973 RES,MF,4.7K,1/5W,5%,AX N,TA 4.7K
R45 3009391973 RES,MF,390,1/5W,5%,AX N,TA 390 R111 3009681973 RES,MF,680,1/5W,5%,AX N,TA 680
R43 R52-53 3009471973 RES,MF,470,1/5W,5%,AX N,TA 470 R114-115 3009682973 RES,MF,6.8K,1/5W,5%,AX N,TA 6.8K
R89 R126 3009684973 RES,MF,680K,1/5W,5%,AX N,TA 680K
R44 3009472973 RES,MF,4.7K,1/5W,5%,AX N,TA 4.7K R103 3009822973 RES,MF,8.2K,1/5W,5%,AX N,TA 8.2K
R31-32 R36-37 3009473973 RES,MF,47K,1/5W,5%,AX N,TA 47K AN13 4355705710 CON ASS'Y 4P 210MM ASS'Y 4P
R77-78 Q102 Q104-105 2008606104-T TR,SG,NPN,150MA,50V,KTC3198,TO C3198Y
R14-15 R23 3009562973 RES,MF,5.6K,1/5W,5%,AX N,TA 5.6K Q101 2008606108-T TR,SG,NPN,100MA,120V,KTC3200,T C3200BL
R71 3009563973 RES,MF,56K,1/5W,5%,AX N,TA 56K Q103 2008613000-T TR,SG,NPN,700MA,50V,2SD1111,TO 2SD1111
R84 R87 3009682973 RES,MF,6.8K,1/5W,5%,AX N,TA 6.8K C101 C103 3409210071-T CAP,E,SM,SG,85C,10UF,50V,M,5P, Oct.50
R34-35 3009752973 RES,MF,7.5K,1/5W,5%,AX N,TA 7.5K C102 3409210971-T CAP,E,SM,SG,85C,1UF,50V,M,5P,T Jan.50
R72 3009753973 RES,MF,75K,1/5W,5%,AX N,TA 75K C107 3409222071-T CAP,E,SM,SG,85C,22UF,50V,M,5P, 22/50
R85 3009824973 RES,MF,820K,1/5W,5%,AX N,TA 820K C104 3409247071-T CAP,E,SM,SG,85C,47UF,50V,M,6P, 47/50
R28 3009911973 RES,MF,910,1/5W,5%,AX N,TA 910 C105-106 3409247971-T CAP,E,SM,SG,85C,4.7UF,50V,M,5P 4.7/50
R60-69 3059228674 RES,CE,WW,0.22,3W,5% 0.22 3W CR101 3529100311-A CAP,CE,TEMP,SL,10PF,50V,J,AX,T 10P
SVR11-12 3248310120 VR,SEMI,CF,TOP,6.4MM,100 100B CR102-103 3539104531-A CAP,CE,SEMI,Y5V,0.1UF,50V,Z,AX 0.1u
C23 3408247149 CAP,E,SM,SG,85C,470UF,25V,M,10 470/25
C21 3408247171 CAP,E,SM,SG,85C,470UF,50V,M,13 470/50 JACK B'D (4003473820)
C34 3639474259 CAP EM 0.47UF 250V K 0.47/250 R1 3009332973 RES,MF,3.3K,1/5W,5%,AX N,TA 3.3K
H17-18 4355461604 CON ASS'Y 1P BRN #14 250-TER CON ASS'Y 1P BR VR1 3238081410 VR,ROT,HOR,1U,L20,25K,B 5KB
CN12 CN14-17 4428595002 CON WAFER,BOX(M),2P,ST CON WAF 2P C5-6 3419515380 CAP ELSW 15000UF 63V JAMICON 15000/63
CN13 4428598304 CON WAFER,LOCK(M),4P,ST CON WAF 4P AN1 4355461412 CON ASS'Y 6P SHIELD #26 ASS'Y 6P SH
CN11 4428598306 CON WAFER,LOCK(M),6P,ST CON WAF 6P H3 4355461513 CON ASS'Y 1P RED TUBE 250-TER ASS'Y 1P RE
P11-18 4465998210 TERMINAL(250)PCB TAB 250 TAP H15 4355461518 CON ASS'Y 1P RED TUBE 250-TER ASS'Y 1P RE
TP11 4678699410 CNT PLUG 1P CNT1P H16 4355462018 CON ASS'Y 1P BLK TUBE 250-TER ASS'Y 1P BL
TP12-15 4678699411 CNT PLUG 1P CNT1P H4 4355705514 CON ASS'Y 1P BLK TUBE 250-TER ASS'Y 1P BL
RLY11 5528001020 RELAY 897P-1AH-D T01(DC24V)S.C 897P-1AH-D H7 4355705607 CON ASS'Y 1P BLUE ASS'Y 1P BL
FAN1 7308998512 FAN (F1238H24B) F1238H24B(24V) JK2 4408194610 JACK,XLR(M),1U,3P,AN,E403A0090 XLR JACK (M)
Q11 Q13 2008606104-T TR,SG,NPN,150MA,50V,KTC3198,TO C3198Y DCIN1 4438094610 TERMINAL,DC,2P,19MM,AN DC TERMINAL 2P
Q19-20 Q32-34 JK1 4438193710 JACK,XLR(F),1U,3P,AN XLR JACK(F) 3P
Q35 2008606105-T TR,SG,PNP,150MA,50V,KTA1266,TO A1266 P3-6 4465998210 TERMINAL(250)PCB TAB 250 TAP

3
Ref No. Part No. Description Value
SW1-2 4618001110 SW,SLIDE,HOR,DPDT,NS,L7.5 SLIDE SW
F15 5508113629 FUSE,20MM,T,8A,250V,K/U/CS/J DOM,R,C,D,M
5508424233 FUSE,31.8MM,T,15A,250V,U/CS E,J,T
F2-3 5508124433 FUSE,31.8MM,T,20A,250V,U/CS T20A/250V
C1 3409222871-T CAP,E,SM,SG,85C,0.22UF,50V,M,5 0.22/50
C2 3409247871-T CAP,E,SM,SG,85C,0.47UF,50V,M,5 0.47/50
C3 3609103120-T CAP,FILM,POLYESTR,0.01UF,100V, 0.01/100(M)
TERMINAL B'D (4003473830)
J1-4 1508400501 JUMP WIRE(0.5/52M/M) 0.5/52M/M
R91 3059101776 RES,CE,WW,100,5W,5%,RA T 100 5W
C35-36 3609473160 CAP,FILM,POLYESTR,0.047UF,400V M473
CN18 4355923805 WAFER LW(3.96) 5P JIS CON WAF 5P
T1 4465997704 TERMINAL,SCREW,4P,10MM,ST SCREW TRERMINAL
TP2 4678699411 CNT PLUG 1P CNT1P
SP1 3509103450-T CAP,CE,HI-DI,0.01UF,500V,Z,RA, 0.01/500
SW B'D (4003473840)
SW3 4648099010 POWER SWITCH ESB-99831V MASTUS POWER SWITCH
H5-6 4355705414 CON ASS'Y 1P BRN #14 250-TER ASS'Y 1P BR
C4 3549103107 CAP,CE,AC,Y2/X1,0.01UF,250VAC, 0.01
AN2 4355818817 CON ASS'Y,FL,2P,5264,5395,390M ASS'Y 2P
LED B'D (4003473850)
R131 3009222973 RES,MF,2.2K,1/5W,5%,AX N,TA 2.2K
LD131 2300050101 LED,RND 5MM,RED,DIF,1U,ST2.5 RED
AN131 4355705815 CON ASS'Y 2P FLAT(LA) 330MM ASS'Y 2P
OTHER
D1 2058199900 DIODE,BR,50A,600V,GBPC5006,GBP GBPC5006
OPT1 2818085200 TRANS OUTPUT PA-9348 O.P.T PA-9348
C34 3639474259 CAP EM 0.47UF 250V K 0.47/250
H18 4355461604 CON ASS'Y 1P BRN #14 250-TER CON ASS'Y 1P BR
ACIN1 4448598810 AC INLET 6100.4320 2T-250TE SU 6100.432
P13-14 P17-18 4465998210 TERMINAL(250)PCB TAB 250 TAP
PT1 2828054300 TRANS POWER PA-9348(100V) J-100V
2828054310 TRANS POWER PA-9348(115/230V) R,C,E,M,T-115/230V
2828054320 TRANS POWER PA-9348(220V) DOM-220V
2828054330 TRANS POWER PA-9348(240V) D-240V
AC Cord Set 4308987810 AC CORD DOME 10A INLET DOM(220V)
4308999410 AC CORD SET,3P,10A,250VAC,V,22 R(230V)
4308996710 AC CORD,3P,10A,250VAC,V,2500MM C(230V,UK)
4308998000 AC CORD SET,3P,7.5A,250VAC,SAA D(240V,SAA)
4308999310 AC CORD SET,3P,10A,125VAC,U,20 E,T(120V)
4308990810 AC CORD SET,3P,10A,125VAC,J,18 J(100V)
4308988610 AC CORD SET,3P,6A,250VAC,CC,18 M(220V)

4
TOP AND BOTTOM VIEW OF P.C. BOARD

5
6
WIRING DIAGRAM

7
BLOCK DIAGRAM

8
SCHEMATIC DIAGRAM

9 10
EXPLODED VIEW OF CABINET & CHASSIS/MECHANICAL PARTS LIST

11 12
ASS'Y DRAWING

6 7 8 9 10 11 12

24V FUSE : T15AH / 250V
DC INPUT
FRAME FLOAT 12dB 0dB

LIFT OFF ON
GROUND HPF
INPUT(ADJ)
)

LINK 1V/10K
INPUT
BALANCED

13
120V 60Hz, 600W
~AC INPUT

COM 43.8V(4) 62V(8 ) 70V(10.2 )
14
A B
OUTPUT
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440

280
No. Descr iption Part No Q'ty Remark
1 HANDL E 04860399 5220 2 3SIZE
2 KNOB PUSH 8543987210 1
3 FRONT PANEL 048602982423 1 COM

4 LENS LED 8523997210 4

5 TOP COVER 0461234 97010 1
0461216 72311 1 DOM
5
0461216 72312 1 R, C
482 0461216 72313 1 E
6 MAIN CHASSIS 0461216 72314 1 D
0461216 72315 1 J
0461216 72316 1 M

0461216 72317 1 T

7 DC TERMINAL 2P 4438094 610 1
8 SLIDE SWIT CH 4618001 110 2
132

9 XLR JACK(M) 4408194 610 1
10 XLR JACK(F) 4438193 710 1
11 VOLUME 3228078 510 1
12 FUSE HOLDER 4458999 210 1
13 AC INLET 4448598 810 1

14 SCRE W TER MINAL 44659977 04 1

4 3 2 1

13 14
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MADE IN KOREA
2004.12 9017300400