Inter-m PA-9348 Service Manual
Public address power amplifier
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Also See for PA-9348:
- Operation manual (15 pages) ,
- Service manual (14 pages) ,
- Operation manual (15 pages)
Table of Contents
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Table of Contents
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Summary of Contents for Inter-m PA-9348
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Page 1: Service Manual
SERVICE MANUAL P U B L I C A D D R E S S P O W E R AMPLIFIER PA-9348... -
Page 2: Table Of Contents
CONTENTS ··············1 Electrical Adjustment Procedure Specifications ······················2 Electrical Parts List ···················· 3, 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 ······················13, 14... -
Page 3: Electrical Adjustment Procedure
ELECTRICAL ADJUSTMENT PROCEDURE IDLE CURRENT A. Connection B. Adjustment – Adjust SVR11, SVR12 so that the current through the R68, R69 become 4~7mV. – When that voltage across the Positive “TP” to Negative “TP” becomes 4~7mV, the current becomes 18~32mA. -
Page 4: Specifications
SPECIFICATIONS ELECTRICAL • Rated Output Power (THD 5%, 1kHz) .......................480W • Frequency Response (+1/-3dB) .....................70Hz~18kHz • Total Harmonic Distortion (1/2 Power, 1kHz)..................1% or lower • High Pass Filter (400Hz) ..........................–3dB • Gain Control..............................–12dB • Signal-to-Noise Ratio........................90dB or higher • Input Sensitivity/Impedance ....................1V/10kΩ Balanced •... -
Page 5: Electrical Parts List
ELECTRICAL PARTS LIST Ref No. Part No. Description Value Ref No. Part No. Description Value Q15-16 2008606107-T TR,SW,NPN,150MA,50V,KTC3206,TO C3206Y MAIN B'D (4003473800) 2008606108-T TR,SG,NPN,100MA,120V,KTC3200,T C3200BL 2008405999 TR,SG,NPN,100MA,250V,2SC4001,T 2SC 4001 2008606998-T TR,SG,NPN,300MA,20V,KTD1302,TO D1302 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... - Page 6 AN131 4355705815 CON ASS'Y 2P FLAT(LA) 330MM ASS'Y 2P OTHER 2058199900 DIODE,BR,50A,600V,GBPC5006,GBP GBPC5006 OPT1 2818085200 TRANS OUTPUT PA-9348 O.P.T PA-9348 3639474259 CAP EM 0.47UF 250V K 0.47/250 4355461604 CON ASS'Y 1P BRN #14 250-TER CON ASS'Y 1P BR ACIN1 4448598810 AC INLET 6100.4320 2T-250TE SU...
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Page 7: Top And Bottom View Of P.c. Board
TOP AND BOTTOM VIEW OF P.C. BOARD... -
Page 9: Wiring Diagram
WIRING DIAGRAM... -
Page 10: Block Diagram
BLOCK DIAGRAM... -
Page 11: Schematic Diagram
SCHEMATIC DIAGRAM... -
Page 12: Exploded View Of Cabinet & Chassis/Mechanical Parts List
EXPLODED VIEW OF CABINET & CHASSIS/MECHANICAL PARTS LIST... -
Page 13: Ass'y Drawing
ASS’Y DRAWING Descr iption Part No Q’ty Remark HANDL E 3SIZE 04860399 5220 KNOB PUSH 8543987210 FRONT PANEL 048602982423 LENS LED 8523997210 TOP COVER 0461234 97010 0461216 72311 0461216 72312 R, C 0461216 72313 MAIN CHASSIS 0461216 72314 0461216 72315 0461216 72316 0461216 72317 DC TERMINAL 2P... - Page 14 MADE IN KOREA 2004.12 9017300400...