5-1283.fm Page 1 Thursday, July 15, 1999 2:19 PM Cat. No. 15-1283 OWNER’S MANUAL Please read before using this equipment.
15-1283.fm Page 2 Thursday, July 15, 1999 2:19 PM Warning: To prevent fire or shock hazard, do not expose this RF Modulator to rain or moisture. CAUTION RISK OF ELECTRIC SHOCK. DO NOT OPEN. ! CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER OR BACK. NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.
15-1283.fm Page 3 Thursday, July 15, 1999 2:19 PM INTRODUCTION Your Radio Shack RF Modulator is designed to convert the separate audio and video signals (from a video camera, computer, portable VCR, satellite receiver, etc.) into normal VHF TV signals that you can see on any regular TV set. THE FCC WANTS YOU TO KNOW This device complies with Part 15 of FCC Rules. Operation is subject to the following conditions: • This device may not cause harmful interference.
15-1283.fm Page 4 Thursday, July 15, 1999 2:19 PM Try to eliminate the interference by: • Moving your RF Modulator away from the receiver. • Connecting your RF Modulator to an outlet that is on a different electrical circuit from the receiver. • Contacting your local Radio Shack store for help. If you cannot eliminate the interference, the FCC requires that you stop using your RF Modulator.
15-1283.fm Page 5 Thursday, July 15, 1999 2:19 PM PARTS REQUIRED You need the following items, not supplied with your RF Modulator, to connect it between a video input source (video camera, satellite receiver, etc.) and your TV.
15-1283.fm Page 6 Thursday, July 15, 1999 2:19 PM CONNECTIONS Follow these steps to connect your RF Modulator. 1. Connect an audio/video cable between the video output jack on your video source and the RF Modulator’s VIDEO IN jack. (illus) 2. Connect another audio/video cable between the audio output jack on your video source and the RF Modulator’s AUDIO IN jack.
15-1283.fm Page 7 Thursday, July 15, 1999 2:19 PM 3. Connect the 75-ohm coaxial cables to the RF Modulator following these guidelines: • If your TV is already connected to another VHF input source (such as cable TV, VCR, etc.): RF Modulator Ant In To TV TV VHF 75 Ohm 300 Ohms Disconnect from here CATV a. Disconnect the input source’s 75-ohm cable from the TV’s 75-ohm VHF input terminal, and reconnect it to the RF Modulator’s ANT IN terminal.
15-1283.fm Page 8 Thursday, July 15, 1999 2:19 PM • If your TV is not already connected to another VHF source: RF Modulator TV VHF Ant In To TV 75 Ohm 300 Ohms CATV a. Connect the input source’s (antenna, cable TV, VCR, etc.) 75-ohm cable to the RF Modulator’s ANT IN terminal. b. Connect a 75-ohm coaxial cable between the TO TV terminal on the RF Modulator and the 75-ohm VHF input terminal on your TV.
15-1283.fm Page 9 Thursday, July 15, 1999 2:19 PM 4. Plug the RF Modulator’s power cord into a standard AC outlet.
15-1283.fm Page 10 Thursday, July 15, 1999 2:19 PM OPERATION 1. Turn on the TV and set it to either channel 3 or 4, whichever of the two is not used for regular broadcasts in your area. 2. Set the RF Modulator’s CHANNEL 4/3 switch to the same channel you set on the TV (3 or 4). (illus) 3. To select the VHF source (cable TV or antenna) connected to the RF Modulator’s ANT IN terminal, set MOD/ANT to ANT.
15-1283.fm Page 11 Thursday, July 15, 1999 2:19 PM Notes: • The first time you set MOD/ANT to MOD, turn on the input source connected to the RF Modulator’s AUDIO IN/VIDEO IN terminals, then set OHMS 1K/ 75 on the RF Modulator to the position that gives the best picture. (illus) • For the best results, try both positions to find the best setting. Doing so does not harm your equipment.
15-1283.fm Page 12 Thursday, July 15, 1999 2:19 PM SPECIFICATIONS Video Carrier Output Level...............................63 dB µV RF Output Channels.............................................. 3 or 4 RF Output Impedance ......................................75 Ohms Video Input Impedance .................... 75 Ohms/1 kOhms (Switchable) Audio Input Impedance ............................ 13 ± 3 kOhms Specifications are typical; individual units might vary.
