User manual ADCOM GTP-502

[. . . ] THE RIGHT TO A CLAIM AGAINST A PUBLIC CARRIER CAN BE FORFEITED IF THE CARRIER IS NOT NOTIFIED PROMPTLY, IN WRITING, AND IF THE SHIPPING CARTON AND PACKING MATERIALS ARE NOT AVAILABLE FOR INSPECTION BY THE CARRIER. SAVE ALL PACKING MATERIALS UNTIL THE CLAIM HAS BEEN SETTLED. ADCOM PROTECTION PLAN (USA ONLY) ADCOM offers the enclosed valuable Limited Warranty. Please read the details on the Warranty Card carefully to understand the extent of the protection offered by the Warranty, its reasonable limitations, and what you should do in order to obtain its benefits. Be sure to verify that the serial number printed on the rear panel matches the serial number on the outer carton. [. . . ] This serves as a reminder that the main remote page is currently active. If you have an ADCOM CD player, this command will cause an idle CD to play. If your GTP-502 is on you will also notice the display does not respond to this command. The button description that follows distinguishes the function of each button dependent on the page the remote is in. The remote is shipped from the factory with ADCOM commands saved under the main, tuner, and CD pages, and with important GTP-502 functions such as volume saved under each page. The ADCOM universal remote controller is preset to operate all GTP-502 functions (MAIN and TUNER device mode) and most GCD-700/750 CD functions (CD device mode). Four AAA (R 03) batteries should be fitted in the battery compartment at the rear of the remote control. When replacing batteries, check that they have been put in correctly, as indicated on the base of the battery compartment. Remote Features [24] Source selectors (vid 1, vid 2, vid 3, vid 4, vid 5, tuner, CD, tape, ext 5. 1): These buttons serve two functions. · First, they switch inputs on the GTP-502 so you can hear the source you've just selected. · Second (and even more important), they can change the functions of all the other buttons on the remote controller. In other words, if you first push the CD device selector, the remote's play button generates a command code for your DVD player. Both display panel and OSD show which speaker is being fed with the test signal. Use the cursor down and up buttons to respectively decrease or increase the level for the current speaker. Press the test button again to leave or cancel the test mode, any changes will be memorized automatically. [43] Pre/Tune button: In main and tuner modes, this button toggles between manual tuning and preset station functions for the tuning up and down buttons [42]. [44] RDS button: In main and tuner modes, cycles through the RDS functions of the tuner. Refer to the Display button description [02] for more information about RDS. [45] AM button: In main and tuner mode, buttons are preprogrammed to select the AM band. [46] FM button: In main and tuner mode, buttons are preprogrammed to select the FM band. [47] M1, M2, M3, M4 (Macro Keys): These buttons are programmable for use with any source. [38] Bal (balance check) button: In main mode, button is preprogrammed to initiate balance check procedure. Even when the GTP-502 is correctly set-up, it may sometimes be desirable to make minor adjustments to suit the material you are listening to. Pressing the bal button allows for direct adjustment of Center, Surround, and Subwoofer levels. Use the Down and Up arrow buttons to respectively decrease or increase the level for the current channel. [48] Sleep button: Press sleep to make the GTP-502 automatically switch off after a preset number of minutes. Pressing the sleep button once will set the sleep time to 90 minutes, after which the GTP-502 will automatically switch off into Standby mode. To adjust the Sleep Delay, press the sleep button, each consecutive press will reduce the sleep time in 30minute increments, as shown in the Display Panel. To cancel the sleep mode, continue pressing the sleep button until the sleep time returns to 0 minutes. Pressing the power on the front panel [01] or stand-by button will also cancel the sleep mode. [39] Backs button: In all modes, this button is preprogrammed to toggle on and off the Surround Back speakers. [40] Repeat button: In CD mode, this button is preprogrammed as "repeat" command for ADCOM CD player. [49] Backlight button: No programming capabilities. [. . . ] You may also need to wait a few moments after turning the amplifier off until the power supply discharges to avoid nasty "thumps" when you disconnect or connect cables. ) Connect one RCA cable at a time to see if the hum returns and, if it does, which specific cable is responsible. If the hum persists with any (or all) cables, then your GTP-502 should be checked by your Dealer or Authorized Service Center. 36 | ADCOM OWNER'S MANUAL TROUBLESHOOTING PROBLEM No sound CAUSE · Power AC lead unplugged or power not switched on · Tape Monitor selected · Mute on · Speaker not properly connected or damaged. · Input lead disconnected or damaged · In Setup "OFF" for surround speaker selected · No surround mode selected · Mono sound source · Speakers not properly connected · Surround volume level too low · In Setup "OFF" for center speaker selected · Speaker not connected properly · Center volume level set too low · Source not connected using digital input · Speakers wired out of phase · Batteries dead, or incorrectly inserted · IR transmitter or receiver windows obstructed · IR receiver in direct sun or very bright ambient light · Antenna leads incorrectly connected · Station not selected or weak signal with FM Mute on. · Weak signal SOLUTION · Check if AC lead is plugged in and power switched on · De-select Tape Monitor mode · Switch off Mute · Check connections and speakers · Check leads and connections · Select appropriate Surround mode (large or small) No sound on one channel No sound on surround channels · Select a Surround Mode · Test system with Stereo or Dolby Surround material · Check speakers and connections · Increase surround volume level · Select appropriate Center mode (large or small) · Check speaker and connection · Increase center volume level · Connect digital output of source to GTP-502 · Check connections to all speakers in the system · Check or replace batteries · Remove obstruction · Place unit away from direct sun, reduce amount of ambient light No sound on center channel "Dolby Digital" OR "DTS" autodetection function does not work Weak bass/Diffuse stereo image Remote control handset not working No sound with tuner · Check antenna connections to preamplifier · Re-tune or switch off FM Mute Noise, hiss on AM and FM · Check station tuning. 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