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Summary of Contents for Contemporary Research 232-STA
- Page 1 Product Manual 232-STA Stereo TV Tuner Ver. 4.4 May 24, 2008 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
S afety Instructions ... 17 L imited Warranty and Disclaimer Contemporary Research ...3 ... 7 ...8 ..8 ... 11 ... 13 ... 13 ... 13 ... 14 ... 14 ... 14 ... 16 ... 18 232-STA Stereo TV Tuner... -
Page 3: Overview
• Units shipped with new processor start with serial number 223-5009-001, Rev 3.1 or higher Serial number can be read as follows—xxx (production run) - 5009 (232-STA) – xxx (unit number) • Request Tune Ring and Channel Label (3.4) •... -
Page 4: S Pecifications
Volume control 0 to -70 dB and mute in 64 steps Contemporary Research Total Harmonic Distortion (THD): 1% maximum, 0.3% typical Channel Separation: 25dB minimum, 30dB typical, 50Hz to 12KHz Total Harmonic Distortion (THD) 0.5%, 0.1% typical 20Hz to 20KHz 232-STA Stereo TV Tuner... -
Page 5: Rf Tuner
12 VDC power supply, 400 mA min (North American shipments only) Options Onscreen text/captioning – use 232-STS 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 232-STA Stereo TV Tuner... -
Page 6: Troubleshooting
Mode 14 is selected, the display will show a flashing Modes 10 – 14 are identical to RS-232 Commands Q0 – Q4, included for RS-232 programming compatibility with the 232-STS. Most functions are fixed, Mode 13 is the only function that can be changed in the 232-STA. Contemporary Research - followed by the current parameter setting. -
Page 7: Front Panel Programming Commands
No function 12.3 No function (fixed) 13.0 No AV status (default) 13.1 Stereo/Mono status 13.2 Disable S/M status 13.3 Enable S/M status 14.0 No function 14.1 No function 14.2 No function (default) 14.3 No function Gain (dB) 232-STA Stereo 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-STA whenever a valid command for that group is received by the 232-STA 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
STA does not have on-screen text or video detection, most commands will have no affect in tuner operation. Sets captioning mode 0=Captioning off (fixed) Turns on captioning type, no functionality in 232-STA 1=Caption 1 (default) 2=Caption 2 3=Caption 3 4=Caption 4... - Page 10 See Bass Level chart on page 6 See Treble Level chart on page 6 Unit sends “S” Front Panel status string Unit sends “T” Channel/Source status string Returns Channel/Source status response string Unit sends “V” Audio status string 232-STA Stereo TV Tuner...
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Page 11: Character Generator Commands
Before the introduction of the 232-STS, 232-STA models offered an optional character generator, supporting an on-screen display that is 28 columns (characters) across by 11 rows (lines) down. An imaginary cursor represents the current screen write position. Writing text automatically increments the cursor to the next character space. -
Page 12: Keypad Channel Command
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 30=Switch to tuner AV (previous channel) if unit is currently set to External AV 31= Input (toggling) Contemporary Research 232-STA Stereo TV Tuner... -
Page 13: Tune Ring Commands And Replies
>STSVSS’ Returns all The carriage return line feed at the end of each 232-STA response allows for easy monitoring of responses with an ASCII terminal program. You may use ASCII CR, Hex $0D, or keyboard ‘Enter’ in programming. You don’t have to use the ‘=’ character between the command and parameter – the string works either way. -
Page 14: Response Strings
Typical: [Attention] [Unit#] [data ...data] [cr] [lf] 232-STA 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. Functions shown as N/A are not applicable;... -
Page 15: Rs-232 Cable Connections
RXD 2 GND 5 TXD 3 RXD 2 9-pin D-sub female Unit 2 9-pin D-sub female Unit 1 9-pin D-sub female Unit 3 9-pin D-sub female Unit 2 9-pin D-sub female Unit 1 9-pin D-sub female 232-STA Stereo TV Tuner... -
Page 16: Rack Mounting
1. 4. 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 RK2 Rack Mount 232-STA Stereo 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 232-STA Stereo TV Tuner... -
Page 18: Limited Warranty And Disclaimer
Limited Warranty and Disclaimer Contemporary Research Corporation (CR) warrants this product to be free from defects in material and 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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