Related Manuals for Lectrosonics CR175
Summary of Contents for Lectrosonics CR175
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Page 1: Operating Instructions
CR175 COMPACT RECEIVER OPERATING INSTRUCTIONS and trouble-shooting guide LECTROSONICS, INC. Rio Rancho, NM U.S. Patent Number: 5,414,776 and 5,402,500... - Page 2 This page intentionally blank.
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Page 3: Table Of Contents
Hundreds of conversations with dealers and end-users developed the final parameters for the design. The CR175 receiver is a fixed frequency design that eliminates the need to “tune” or adjust the receiver every time it is used. This is the preferred design for a number of reasons, among them simplicity of operation, no adjustments in “high pressure”... -
Page 4: Controls And Functions - Front Panel
CONTROLS AND FUNCTIONS - FRONT PANEL MODULATION LEDs Indicate the modulation (audio level) of the incoming signal, and can be used for proper adjustment of the transmitter’s “MIC LEVEL” or “GAIN”. The -20 LED glows when the transmitter modulation is at a high enough level to produce a good audio signal-to-noise ratio. - Page 5 “open”. This will allow considerable noise to pass through the audio circuits if the associated transmitter is off, or if other circuits of the CR175 stop operating because of the low voltage condition. In addition, three out of the four LEDs on the front panel will light (the exception being the POWER LED).
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Page 6: Controls And Functions - Rear Panel
XLR type. BATTERY REPLACEMENT The CR175 is powered by a standard alkaline 9 volt battery. It is important that you use ONLY an ALKALINE battery for longest life. Standard zinc-carbon batteries marked “heavy duty” or “long-lasting” are not adequate. They will provide only about one hour of operation. -
Page 7: Antenna Use And Placement
Compact Receiver ANTENNA USE AND PLACEMENT Connect the antenna to the front panel jack. Position the antenna so that it is not within 3 or 4 feet of large metal surfaces. If this is not possible, try to position the antenna so that it is as far away from the metal surface as is practical. -
Page 8: Operating Instructions
If the output is too low, you may hear steady noise (hiss) along with the audio. The CR175 output was designed to drive microphone level inputs. The output signal level ranges from -50dBV with the output control fully counter clockwise to -20dBV with the output control fully clockwise. -
Page 9: Troubleshooting
2) Audio cable disconnected 3) Recorder or sound system off, or not properly adjusted. CR175 REPLACEMENT PARTS AND ACCESSORIES Part No. Description CH-12 110 Volt AC adapter for CR175 receiver A-185 Coax Remote, folded-dipole antenna with coaxial cable 35753 System pouch A-195RA Helical, flexible (“rubber duckie”)antenna with a 9inch... -
Page 10: Specifications
SPECIFICATIONS Operating Frequencies: 169 to 186 MHz, crystal controlled RF Sensitivity: –110 dBm for 20 dB Sinad (0.7 uV) IF Selectivity: • 150 kHz interference bandwidth • –30 dB @ ±200 kHz Squelch Quieting: –109 dB AM Rejection: below the noise at all input levels Modulation Acceptance: ±15 kHz Third Order Intercept:... -
Page 11: Service And Repair
There are no adjustments inside that will make a malfunctioning unit start working. LECTROSONICS service department is equipped and staffed to quickly repair your equipment. In-warranty repairs are made at no charge in accordance with the terms of the warranty. Out of warranty repairs are charged at a modest flat rate plus parts and shipping. - Page 12 This warranty does not apply to used or demonstrator equipment. Should any defect develop, Lectrosonics, Inc. will, at our option, repair or replace any defective parts without charge for either parts or labor. If Lectrosonics, Inc. cannot correct the defect in your equipment, it will be replaced at no charge with a similar new item.
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