User manual GAI-TRONICS 723-003

[. . . ] Mohnton, PA 19540 USA 610-777-1374 800-492-1212 Fax: 610-796-5954 VISIT WWW. GAI-TRONICS. COM FOR PRODUCT LITERATURE AND MANUALS Model 723-003 24 V DC Remote Handset/Speaker Amplifier Pub. 42004-259C Page: 2 of 6 Model 723­003 24 V DC Remote Handset/Speaker Amplifier is shown mounted in the 7245 Series enclosure and connected to the Model 7265-101 Desktop Subset. Remember, while your specific configuration may be different, the installation details will be the same. Figure 1. Installation of Model 723-003 Remote Handset/Speaker Amplifier f:\standard ioms - current release\42004 instr. [. . . ] Receiver Sidetone: adjusts the signal transmitted from the microphone to the receiver of a handset. Receiver Volume: adjusts the gain level from a party line to the receiver. Troubleshooting The following table lists some hints to aid technicians in troubleshooting: Problem Solution Feedback/distortion (a hum or buzz on the line) occurs during all Page/Party® station operation. Associated speaker level requires adjustment. The line may be improperly terminated. Inspect the system cable for loose connections, shorts, and grounds. Line balance assembly connections are critical. Adjust the speaker volume control located on the front panel of the subset, if equipped. Adjust the speaker volume control at the amplifier. Use a small standard screwdriver to perform these adjustments. Refer to Figure 1 f:\standard ioms - current release\42004 instr. manuals\42004-259c. doc 11/10 Model 723-003 24 V DC Remote Handset/Speaker Amplifier Pub. 42004-259C Page: 5 of 6 Specifications Power input, voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21­28. 8 V dc range, 25 V dc nominal Power consumed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Zero signal: 2. 75 W Maximum signal: 27 W Construction/Finish. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-gauge cold-rolled steel/gray polyurethane Handset Amplifier Output level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1. 5 VRMS nominal into 33-ohm load Output limiter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1. 5 VRMS nominal Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 dB nominal (below limiter level); adjustable from 40 to 63 dB Frequency response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . @ 1 kHz Distortion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1. 5% maximum THD @ 1 kHz Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Microphone gain, receiver volume, and sidetone (adjusted through the access holes on the rear surface of the unit. ) Speaker Amplifier Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Push-pull, Class B, 12 watts minimum, with nominal supply voltage Amplifier sensitivity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0. 5 V ac, at rated output Frequency response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Buyer may also be entitled to the manufacturer's warranty on any third-party goods supplied by GAI-Tronics hereunder. The applicability of any such third-party warranty will be determined by GAI-Tronics. Services. Any services GAI-Tronics provides hereunder, whether directly or through subcontractors, shall be performed in accordance with the standard of care with which such services are normally provided in the industry. If the services fail to meet the applicable industry standard, GAI-Tronics will re-perform such services at no cost to buyer to correct said deficiency to Company's satisfaction provided any and all issues are identified prior to the demobilization of the Contractor's personnel from the work site. Re-performance of services shall be Buyer's sole and exclusive remedy, and in no event shall GAITronics warranty obligations with respect to services exceed 100% of the total cost of the services provided hereunder. Warranty Periods. Every claim by Buyer alleging a defect in the goods and/or services provided hereunder shall be deemed waived unless such claim is made in writing within the applicable warranty periods as set forth above. [. . . ]