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FD-20
Инструкция по эксплуатации Страница: 1

Jedia FD-20 Инструкция по эксплуатации онлайн

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r AULT DETECTION MODULE FD 20 DESCRIPTION The fault detection module of power amplifier checks operating conditions of amplifier and disconnection of speaker wiring by giving out the sine wave of 20KHz at an output level of 2Vrms at 70 or 100V line As the block diagram shows the sine wave of 20KHz 2Vrms is mixed with other signals on the amplifier output which is deliverd to the detection module though speaker cables and the detection module detects only the sine wave of 20KHz through a filter to check a fault INSTALLATION 1 Unplug the power cable from a AC outlet 2 Remove the rear mounted blank panel and mount the FD 20 in the resultant hole using screws supplied with the module 3 Set ON position MS1 on the FD 20 module after connection ofCN601 on the FD 20 4 Set the switch ON of FD 20 ON OFF switch SWI on the rear panel of amplifier 5 Screw FD 20 on the panel 6 Connect COM of AMP output terminal and 100V terminal to the COM and HOT 7 Connect relay contact of FD 20 to the input terminal of relay contact of JFS 381 FAULT STAND BY AMP SWITCH CALIBRATING FD 20 ON POWER AMPLIFIERS Ensure amplifier to be adjusted in not being used Le Unplug the PGM and PRIORITY input screw terminals 1 Set Digital Portable Multimeter to measure AC voltage and connect across power amplifier COM and 70V 100V terminals Confirm output of power amplifier is 2Vac rms at 20KHz Adjust OSC LEVEL potentiometer VR602 If necessary 2 Set Digital Portable Multimeter to measure AC voltage and connect TEST connector Confirm reading of 2Vac rms at 20KHz Adjust Sensitivity potentiometer VR601 If necessary Insert PGM and PRIORITY input screw terminals if removed Note Use accuracy Digital portable multimeter which has FQ test range XIISS H18I g82 fault detection 288 SBBI3 2Vrms 70 or 100V line Oil AH 20KHz l 8H 4 011 l 5H AH g2 8 SEKI 1113612 3H F J l 83 S3S X1I38LI Block diagramOHAH 8 4 3801 20KHz 2Vrms 2 ADI31 HI0188 g sH AH detection 288 3801 g22 S SOU AH LIS signal 8 OCHI 9LL 3BI3 detection 288 fault X1I36I2 filter S5HAH 20 KHz 4318 8A 8fL1 sXI 1 g22 K g 22 AC OUTLET 288E1 B28XI2 2 FD 20 SLOTS BLANK PANELS W Dig El71 82 HI01B EI0I1 3 36I8AI2 3 FD 20 282 CN601 Oil 8SE11 232 Dig FD 20 2222 MS1 S ONYIxlS 8 618 XI2 4 g2 l 3H2 FD 20 ON OFF 341x SW1 ON x 8 3 6101 38X12 5 FD 208 3 011 881618X12 6 S82 4 ElU 82 COM 3X121 100V 2X1 FD 202 COM 2X1 21 HOT 3XI0II 22 38618X12 7 FD 202 SHIOI 8SS JFS 381 FAULT STAND BY AMP SWITCHER 2 aaioi a 22 2x121 32618x12 gun 2 FD 20 UIS 282 PGM PRIORITY 22 23g E1DI38 B28XI2 1 Digital Portable Multimeter AC 22 Bl 2 XI 011 3 6 2 g B 2 Tig g82 COM2 70V 100V 3XKHI 2361X12 OSC LEVEL BBS 3 6l0l 3222 2Vac rms 20KHz 2 22 3 618X12 2 Digital Portable Multimeter AC 32 B Bl 2 XI 011 8 612 Bl 2 TEST 22E1 011 23618X12 Sensitivity BBS 3 6 0 32212 2Vac rms 20KHz 7 22 3 618X12 XII3 222 PGMTI PRIORITY2LI2 2 2X1 CIA 23618X12 82 Digital portable multimeters 20KHz 8H12 218 AIS6I8AI2

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