User manual ADCOM GTP-870HD

[. . . ] GTP-870HD Preamp/Processor User's Manual GTP-870HD standby room two on/off setup FM/AM up volume tune/preset down video 1 video 2 video 3 video 4 tape CD ext 7. 1 sur mode Congratulations on your purchase of the Adcom GTP-870HD You have made a wise choice that will reward you with exceptionally accurate musical sound reproduction for years to come. To realize the full potential of your new preamp/processor, please read these operating and installation instructions thoroughly before attempting to make any connections to it. The GTP-870HD is not only designed to reproduce the highest quality sound and picture but also to deliver the greatest possible value. It is our engineers' passion for perfection that has enabled our components to be judged the equivalent of others costing two, three, or even five times as much. [. . . ] · Select 480p, 576p, 720p (50/60Hz), 1080i, 1080p (50/60Hz) or VGA for high-definition and/or progressive scan displays. · Select Auto to automatically detect the output resolution of your display device. COLOR SPC Specifies the 24-bit color space output to your display device. Check the specifications of your display, then use the / buttons to select: · RGB444 (default) or YCbCr444 FORMAT Sets the default picture format for the selected input. Use the / buttons to choose: · Auto - Automatically selects the best picture format for the current output resolution. · Full - Stretches a standard 4:3 image to fill a widescreen (16:9) display. · Zoom - Zooms the on-screen image proportionally, preserving the original aspect ratio but cropping the picture. · NLS (Non-linear Stretch) - Stretches a 4:3 image to 16:9, but preserves the correct aspect ratio in the center of the picture. POSITION ADJUST Displays the Position Adjust menu where you can fine tune the vertical and horizontal position of the scaled image. Use the / buttons to select: · Test Patrn - Displays a test pattern to make it easier to discern the edges of the screen. CABLE EQ Enables cable equalization to compensate for highfrequency signal loss/dispersion when transmitting high-res video over long distances. Use the / buttons to select: · Short or Long · Select Short if your HDMI cable is < 5 meters. Leave this setting off UNLESS you are using your display's integrated audio processing, amplification and speakers. If this setting is on, you will NOT be using the GTP-870HD audio processor. Use the / buttons to select: · PCM 2 CH, PCM/Bit, or Off · Select PCM 2CH to send a 2-channel digital audio signal to your display device. · Select PCM/Bit to send a digital bitstream to your display device. To 1 2 3 Chapter 3 - Setup 34 GTP-870HD Owner's Manual Picture Controls The HD Scaler includes basic and advanced controls to help you achieve optimal picture quality for each input source. To 1 2 3 access the Picture Controls menu: Press the Main button on the remote control. Use the / buttons to select INPUT CONFIG, then press the Select button. 4 Use the / buttons to select HD SCALER, then press the Select button. 5 Use the / buttons to select PICTURE CONTROLS, then press the Select button. 6 Use the / buttons to choose from the following menu items: BASIC CONTROLS Provides basic tools to adjust the picture for each input source. [. . . ] In the unlikely event damage has occurred, notify your dealer immediately and request the name of the carrier so a written claim to cover shipping damages can be initiated. The right to a claim against a public carrier can be forfeited if the carrier is not notified promptly in www. adcom. com GTP-870HD Owner's Manual 61 Troubleshooting The table below shows possible causes and solutions to common GTP-870HD issues. If you do not see the answers you need here, please contact your Adcom dealer or customer service department; see page 61. Symptom No sound Possible Reason · · · · · · Power cable unplugged Rear panel power switch turned off (0) Tape Monitor selected Mute on Incorrect Input Config setting Amplifier powered off Possible Solution Plug in power cable Turn rear panel power switch on (1) Press Tape to de-select Tape Monitor Switch off Mute Make sure audio input is set correctly in Input Config menu · Power on amplifier · Check connections and speakers · Check cables and connections · In Speaker Config menu, set speaker to "Small" or "Large" · Select a surround mode · Test system with stereo or Dolby Surround material · Check speaker/amplifer connections · Increase surround volume level · In Speaker Config menu, set Center speaker to "Small" or "Large" · Check speaker/amplifier connections · Increase Center volume level · Connect digital output of source to GTP-870HD · Check the Digital Out setting on your source component · 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 · Check antenna connections to preamplifier · Re-tune · Switch off Mute · Check station tuning · Adjust or replace antenna · Press St/Mono button to reduce hiss · Check station tuning · Adjust or replace antenna · Check station tuning · Switch off or move the source of the electrical noise · Check station tuning · Adjust or replace AM antenna · Check the input setting on your TV · If the GTP-870HD is connected to your TV in more than one way (e. g. , S-video and Component video), select the TV input that corresponds with your selected source component · Press Main, then press Setup · Select Video, S-video, or Component output to view Setup menus · Press Setup to exit the Setup menu, then power off unit · · · · · No sound on one channel · Speaker not properly connected or damaged · Input cable disconnected or damaged · Speaker set to "None" in menu system · · · · No surround mode selected Mono sound source Speakers/amplifier not properly connected Surround volume level too low No sound on surround channels No sound on center channel Chapter 5 - Help · Center speaker set to "None" in menu system · Speakers/amplifier not connected properly · Center volume level set too low · Source not connected using digital input · Incoming signal is set to PCM instead of Bitstream "Dolby Digital" OR "DTS" auto-detection function does not work Weak bass/diffuse stereo image Remote control not working · Speakers wired out of phase · Batteries dead, or incorrectly inserted · IR transmitter or receiver windows obstructed · IR receiver in direct sun or bright ambient light · Antenna leads incorrectly connected · Station not selected or weak signal · Mute on · Weak signal No sound with tuner Noise, hiss on AM and FM Distortion on FM Whistles or buzzes on FM & AM Whistles or buzzes on AM No picture · Multi-path signals or interference from another station · Interference from other electrical sources, e. g. , computers or games consoles · Interference from fluorescent lighting or electrical motor · Incorrect TV input selected Cannot access setup menu Cannot power off unit · Not in Main mode · HDMI or Progressive Scan video output selected · Setup menu is active 62 GTP-870HD Owner's Manual Technical Specifications PREAMPLIFIER ANALOG SECTION Input Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47k Output Impedance (Main-RCA) . . . . . . . . . . . . . . . . <600 Ohm Rated Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Vrms Volume & Trim Range (relative to 0dB Trim) · Main . . . . . . . . . . . . . . . . . . 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