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Inputs Board, Supplies & Protections Board Power Amplifier Board Display Board & Part List GENERALMUSIC S.p.A. Sales Division: 47842 S.Giovanni in Marignano (RN) ITALY - Via delle Rose, 12 - tel. 0541/959511 - tlx 550555 GMUSIC I - fax 0541/957404 SERVICE MANUAL Notice Service must be carried out by qualified personnel only.
disconnect the supplies from the outputs modules (CN2, CN3 on POWER TECHNICAL SPECIFICATIONS TECHNICAL SPECIFICATIONS TECHNICAL SPECIFICATIONS Remarks Remarks Remarks TECHNICAL SPECIFICATIONS TECHNICAL SPECIFICATIONS Remarks Remarks AMPLIFIER boards), continue to check the supplies. Dimensions: (WxHxD) 483x88x325mm (2U) The power supply utilizes a dual bipolar DC rail configuration with low and CAUTION: Before re-connecting the output modules to the supplies, CAUTION: Before re-connecting the output modules to the supplies, CAUTION: Before re-connecting the output modules to the supplies,...
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and the relays must re-connect the output sockets. Fig. 7 Fig. 7 Fig. 7 Fig. 7 Fig. 7 Fig. 2 Fig. 2 Fig. 2 Fig. 2 Fig. 2 Temporarily short the emitter and the collector of TR1 the PROTECT led Trace B (20V/div.) must turn on and the relays must disconnect the output sockets.
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GAIN ADJUSTMENT GAIN ADJUSTMENT GAIN ADJUSTMENT GAIN ADJUSTMENT GAIN ADJUSTMENT Re-set the input signal at pin 2 (positive input) and pin 3 (negative input) short with pin 1 (GND) of XLR input socket. Set CH2 scope at 500mV/div. and connect it to the output of INPUTS board (CN3 pin9 for channel A or CN3 pin7 for channel B).
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080241 5V6 1W 5% Zener Diode Spare Part List Spare Part List Spare Part List Spare Part List Spare Part List 080171 FE6B 6A 100V Fast Recovery Diode Code Ref. Description 080156 1N4002 1A 100V Rectifier Diode 080103 1N4148 100mA 75V Signal Diode Accessories Accessories Accessories...