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Pages: 15
Pages: 16
Pages: 14
[Page 1] Inter-m PA-9348
SERVICE MANUAL PA-9348 PUBLIC ADDRESS POWER AMPLIFIER ...
[Page 2] Inter-m PA-9348
Electrical Adjustment Procedure ··············1 Specifications ······················2 Electrical Parts List ···················· 3, 4, Top and Bottom View of P.C. Board ···········�...
[Page 3] Inter-m PA-9348
ELECTRICAL ADJUSTMENT PROCEDURE 1 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, ...
[Page 4] Inter-m PA-9348
SPECIFICATIONS 2 ELECTRICAL • Rated Output Power (THD 5%, 1kHz) .......................................................................................................480W • Frequency Response (+1/-3dB) ..............................................
[Page 5] Inter-m PA-9348
ELECTRICAL PARTS LIST 3 Ref No. Part No. ValueDescription Q36 2008405999 TR,SG,NPN,100MA,250V,2SC4001,T 2SC 4001 Q31 2028406113 TR,PW,NPN,3A,60V,KTD2058,TO-22 D2058Y Q17-18 2028407990 TR,PW,NPN,1.5A,180V,KTC4370A,T C4370A Q21-30 2028443880 TR,PW,NPN,...
[Page 6] Inter-m PA-9348
4 Ref No. Part No. ValueDescription 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 3409...
[Page 7] Inter-m PA-9348
TOP AND BOTTOM VIEW OF P.C. BOARD 5 ...
[Page 8] Inter-m PA-9348
6 ...
[Page 9] Inter-m PA-9348
WIRING DIAGRAM 7 ...
[Page 10] Inter-m PA-9348
8 BLOCK DIAGRAM ...
[Page 11] Inter-m PA-9348
10 SCHEMATIC DIAGRAM 9 ...
[Page 12] Inter-m PA-9348
12 EXPLODED VIEW OF CABINET & CHASSIS/MECHANICAL PARTS LIST 11 ...
[Page 13] Inter-m PA-9348
14 ASS’Y DRAWING 13 INPUT(ADJ) 12dB 0dB BALANCED INPUT 1V/10KΩ LINK HPF ON OFF ~AC INPUT 120V 60Hz, 600W FUSE : T15AH / 250V DC INPUT 24V ) 70V(10.2 )Ω 43.8V(4Ω) OUTPUT COM A B 62V(8 )Ω FRAMEFLOAT GROUND LIFT www.inter-m.com 1 1 1 ...
[Page 14] Inter-m PA-9348
www.inter-m.com MADE IN KOREA 2004.12 9017300400 ...
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