Table of Contents
Related Manuals for Contemporary Research 232-MTA
Summary of Contents for Contemporary Research 232-MTA
- Page 1 Product Manual 232-MTA Stereo TV Tuner Ver. 4.4 June 27, 2007 17630 Davenport Road, Suite 113 • Dallas, TX 75252 Phone: 972-931-2728 • Toll-Free: 888-972-2728 • Fax: 972-931-2765 E-Mail: Sales@crwww.com • Website: www.crwww.com...
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Page 2: Table Of Contents
Single Tuner ............................15 Multiple Tuners ............................ 15 Rack Mounting ..........................16 RK1 Single Unit Rack Mount ........................16 RK2 Side-by-Side Rack Kit ........................16 Safety Instructions ........................... 17 Limited Warranty and Disclaimer ..................... 18 Contemporary Research 32-MTA Mono TV Tuner... -
Page 3: Overview
• Units shipped with new processor start with serial number 229-5017-001, Rev 3.4 or higher Serial number can be read as follows—xxx (production run) - 5017 (232-MTA) – xxx (unit number) • Request Tune Ring and Channel Label (V3.4) •... -
Page 4: Specifications
Antenna/Cable: ‘F’, female, 75 ohm impedance Video Output: RCA female, NTSC composite, 75 ohm impedance, 1V peak-to-peak typical Audio Outputs: 2 RCA female, mono 1K ohms, 20Hz to 20KHz, 0.5% maximum, 0.1% typical THD Contemporary Research 32-MTA Mono TV Tuner... -
Page 5: Rf Tuner
12 VDC power supply, 400 mA min (North American shipments only) Options CC-232 RS-232 Control Cable (specify make and model) RK1 Kit for mounting single unit in 19” rack, RK2 Kit for mounting two units side-by-side in 19” rack Contemporary Research 32-MTA Mono TV Tuner... -
Page 6: Troubleshooting
1. Press and hold the Mute A/V button such that the red LED light above is lit (indicating Mute On). 2. Press Select Up. 3. Release all buttons, the 232-MTA will now be in the front panel programming mode. 4. The front panel display is dedicated to programming information display while in this mode. -
Page 7: Front Panel Programming Commands
6.31 Ex: Version 3.1 - Press and hold Version Channel Up, then Mute AV to restore tuner to default settings Audio Decode Mono (fixed) Bass Gain 0 db fixed Treble Gain 0 db fixed Contemporary Research 32-MTA Mono TV Tuner... -
Page 8: Rs-232 Control Protocol
Each of the groups has one ASCII status response string containing all of the status data for that group. The current status string of a group is sent from the 232-MTA whenever a valid command for that group is received by the 232-MTA RS-232 port or front panel. A group's status may be requested at any time via the RS-232 port. -
Page 9: General Rs-232 Commands
Caption Mode Off (0-2) Sets captioning mode 0=Captioning off (fixed) Captioning Type (1-8) Turns on captioning type, no functionality in 232-MTA 1=Caption 1 (default) 2=Caption 2 3=Caption 3 4=Caption 4 5-8= Text 1-4... - Page 10 A carriage return is required at the end of each command and is assumed in all examples. The ‘=’ sign for parameters may be omitted if desired, though it is helpful for clarity in checking programming. Contemporary Research 32-MTA Mono TV Tuner...
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Page 11: Character Generator Commands
Character Generator Commands The CG option is no longer available for the 232-MTA, this section is provided for reference on earlier models with the option installed. The CG supported an on-screen display that is 28 columns (characters) across by 11 rows (lines) down. -
Page 12: Keypad Channel Command
22=Channel up or + 23=Channel down or – 24=Volume up or + (use Release Key (0) to stop volume ramp) 25=Volume down or – (use Release Key (0) to stop volume ramp) 26=Volume mute 31= Input (toggling) Contemporary Research 32-MTA Mono TV Tuner... -
Page 13: Tune Ring Commands And Replies
Returns all response strings back-to-back. The carriage return line feed at the end of each 232-MTA response allows for easy monitoring of responses with an ASCII terminal program. You may use ASCII CR, Hex $0D, or keyboard ‘Enter’ in programming. -
Page 14: Response Strings
Response Strings Typical: [Attention] [Unit#] [data ...data] [cr] [lf] 232-MTA status response strings contain ASCII characters similar to those used for the same functions in command strings. An ASCII 'carriage return' and ‘line feed' follow each response string. Channel/Source Status Response String (T):... -
Page 15: Rs-232 Cable Connections
TXD 3 2 RXD 9-pin D-sub Control Port 3 TXD RXD 2 female GND 5 Unit 2 TXD 3 9-pin D-sub RXD 2 female GND 5 Unit 1 TXD 3 9-pin D-sub RXD 2 female Contemporary Research 32-MTA Mono TV Tuner... -
Page 16: Rack Mounting
Reinstall the bottom/chassis of the first unit underneath its cover and attach with just eight (8) of the screws removed in step 1. Attach short rack ears to the side and towards the front of each unit with the four (4) supplied 8-32 by 1/4" (black) countersunk screws. Contemporary Research 32-MTA Mono TV Tuner... -
Page 17: Safety Instructions
Article 820-40 of the National Electrical Code (Section 54 of Canadian Electrical Code, Part I), that provides guidelines for proper grounding and, in particular, specifies that the cable ground shall be connected to the grounding system of the building as close to the point of cable entry as possible. Contemporary Research 32-MTA Mono TV Tuner... -
Page 18: Limited Warranty And Disclaimer
Limited Warranty an d Disclaimer Contemporary Research Corporation (CR) warrants this product to be free from defects in material nd workmanship under normal use for a period of two years from the date of purchase from CR. Should such a defect occur CR will repair or replace, at their option, the defective product at no cost for parts or labor.
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