Page 3 - A NOTE FROM ADCOM; ADCOM PROTECTION PLAN; *Save the shipping carton and all packing material.
A NOTE FROM ADCOM Thank you and congratulations on your purchase of the ADCOM GTP-830 Digital Processing Tuner/Preamplifier. The GTP-830 provides Dolby Digital andDTS decoding with 7.1 output channels, as well as a 5.1analog bypass and the RDS radio data system. Thesefeatures and ADCOM’s legendary q...
Page 4 - IMPORTANT SAFETY INSTRUCTIONS; —The unit does not appear to operate normally,; Outdoor Antenna Grounding; C AU T I O N
4 | ADCOM OWNER’S MANUAL IMPORTANT SAFETY INSTRUCTIONS Warning: To reduce the risk of fire or electric shock,do not expose this unit to rain or moisture. Read all the safety and operating instructions beforeconnecting or using this unit. Retain this notice and the owner’s manual for futurereference....
Page 5 - SAFETY NOTIFICATION PAGE; This “
power lines ground clamp power service grounding electrode system (e.g. interior metal water pipe) ground clamps ground clamps optional antenna grounding electrode driven 8 feet (2.44 M) into the earth if required by local codes. bonding jumper, d service entrance equipment service entrance conducto...
Page 6 - ADCOM Power Cord
✔ ✔ ✔ ✔ ✔ ✔ GTP-830 CHECKLIST 6 | ADCOM OWNER’S MANUAL GTP-830 Tuner/Preamp GTP-830 Remote Controlwith Batteries GTP-830 Owners Manualand Warranty ADCOM Power Cord Video 5 input cover FM Antenna/Balun Adapter
Page 7 - TABLE OF CONTENTS
A Note from ADCOM 3 The ADCOM Protection Plan 3 Unpacking your GTP-830 3 Safety Information 4-5 GTP-830 Checklist 6 1.0 Product Features 8 1.1 Front Panel Controls 9 1.2 Rear Panel Inputs & Outputs - System Connections 14 1.3 The Remote Control 20 2.0 Installing/Connecting the GTP-830 29 2.1 Phy...
Page 8 - see page 34 for backs placement; GTP-830 DIGITAL PROCESSING TUNER/PREAMPLIFIER
8 | ADCOM OWNER’S MANUAL [ 01 ] Power button [ 02 ] Display button [ 03 ] FM Mute/High Blend button [ 04 ] Memory button [ 05 ] Tuner Up/Down buttons [ 06 ] Tune/Preset button [ 07 ] Display window [ 08 ] Volume knob [ 09 ] Headphone Output and Video 5 inputs [ 10 ] Surround Backs button see page 34...
Page 9 - Front Panel Controls; PRODUCT FEATURES
1.1 Front Panel Controls The GTP-830’s front panel is a model of simplicity. All controls are logically grouped for easy, intuitive operation. Familiarize yourself with the preceding diagram and read the short explanations of each feature below. When you finish, you will be well on your way to enjoy...
Page 10 - Deleting a stored Preset:
[ 03 ] FM Mute/High Blend button: This button combines two functions; it switches thetuner from Stereo to Mono and disengages themuting circuitry at the same time. The muting cir-cuit will mute the tuner in between radio stationswhen searching or tuning to avoid tuning noise. However, very weak radi...
Page 11 - Headphone Output and Video 5 inputs:; functions from the remote con-
reasonably strong radio station, where it will stop.Press the Down/Up button again for 1/2 second tostart searching again. NOTE:Automatic tuning is available on both FM and AM. By briefly tapping the Down or Up buttons you canengage manual tuning respectively down or up thefrequency band for precise...
Page 15 - System Connections; FM
1.2 Rear Panel Inputs & Outputs - System Connections Like the front panel, the GTP-830’s rear panel is carefully arranged to make hookup, configuration, and use as simple as possible. However, the GTP-830’s extraordinary capabilities take some study to use most effectively. We strongly suggest t...
Page 16 - for a television or video
GTP-830 DIGITAL PROCESSING TUNER/PREAMPLIFIER [ 15 ] Preamp outputs: Before making any connections, check that the GTP-830 and the power amplifiers it will be con-nected to are switched off. Connect the RCA-to-RCAleads from the Front Left and Right, Center, Surround Rear Left and Right, andSurround ...
Page 18 - 2v DC trigger
GTP-830 DIGITAL PROCESSING TUNER/PREAMPLIFIER 18 | ADCOM OWNER’S MANUAL [ 23 ] AC power cord: After you have completed all connections to theamplifier, plug the AC line cord into a “live” wall socket. [ 24 ] 12v DC Trigger: To facilitate remote turn-on and turn-off of othercomponents (power amplifie...
Page 21 - The Remote Control
1.3 The Remote Control The GTP-830 remote control is a learning remote control that is capable of saving commands for all remote controls in your home theater system. In this way, you may eliminate the confusion of using multiple remotes. Although such power comes with some added complexity, the com...
Page 24 - Remote Function Table; BUTTON
NOTES:Direct sunlight or very bright ambient lighting mayaffect the operating range and angle for the remotecontrol handset. The infrared remote control command receiver, locat-ed to the right of the Power button, receives com-mands from the remote control. There must be a clearline-of-sight path fr...
Page 29 - clearance
allow 5" of clearance 2.1 Placement Your system components need a stable, vibration-free supporting surface. Your ADCOM dealer willbe pleased to show you many different types ofaudio/video equipment racks and cabinets. Keepthe GTP-830 (and other audio/video components)away from moisture and out ...
Page 30 - SETUP
What this section is all about . . . After connecting your home theater, you may electto configure the GTP-830 to the specific speakerarrangement and dimensions of your system. Theprocedures described in this section demonstratehow to use the GTP-830’s on screen display to enterthis information. Onc...
Page 31 - INITIAL SETUP; RIGHT
0dB and to match the other channels to it.Normally, if the Right speaker is located at the same distance from the listening position to the Left speaker it should be set at the same level as the Left speaker. Press the Test button again to leave or cancel theTest mode; any changes will be memorized ...
Page 32 - Determining Delay Values:
Scroll through the preset delay time options andselect the desired time. When both delays have been entered, choose“SAVE & EXIT” to save the settings and return tothe Main Menu. In Dolby Digital surround mode, the rear channeldelay time can be set from 0ms to 15ms with 1msincrements. The center ...
Page 33 - SPEAKER SETTINGS
Installing surround speakers will greatly enhancethe surround experience as these add considerablyto the overall “ambiance.” Dolby Pro Logic encodedmaterial is deliberately limited in dynamic rangeand frequency bandwidth for the surround channeland thus only requires speakers of far lesser capa-bili...
Page 34 - Surround Speaker Placement
GTP-830 DIGITAL PROCESSING TUNER/PREAMPLIFIER 34 | ADCOM OWNER’S MANUAL 3.5 Surround Speaker Placement surround rear left surround rear right front left front right center surround rear left surround rear right front left front right center surround back right surround back left surround rear left s...
Page 35 - INPUT SETTINGS; surround; Note: If space permits, install surrounds
3.6 Input Settings Input Settings shows information about the currentstate of operation of the GTP-830, and repeatsmuch of the same information shown on the GTP-830’s front panel. This menu should be the only partof the on-screen display you might elect to use reg-ularly after setup is complete, as ...
Page 36 - Troubleshooting Tip
GTP-830 DIGITAL PROCESSING TUNER/PREAMPLIFIER 36 | ADCOM OWNER’S MANUAL NOTE 1: Cable TV systems can contribute to ground loopproblems, which in turn, cause “hum.” To determinewhether your cable system is the contributing factor,disconnect the cable TV incoming signal line (the round,75 ohm cable) b...
Page 37 - TROUBLESHOOTING; PROBLEM
TROUBLESHOOTING No sound No sound on one channel No sound on surround channels No sound on center channel “Dolby Digital” OR “DTS” auto-detection function does not work Weak bass/Diffuse stereo image Remote control handset notworking No sound with tuner Noise, hiss on AM and FM Distortion on FM Whis...
Page 38 - Caring for your GTP-830
CARE, MAINTENANCE, AND SERVICE CARING 38 | ADCOM OWNER’S MANUAL 5.0 Care, Maintenance, and Service Caring for your GTP-830 ADCOM has taken great care to ensure your GTP-830 is as flawless in appearance as it is electronical-ly. The front panel is a heavy gauge, high-grade alu-minum extrusion careful...
Page 39 - SPECIFICATIONS; Audio
SPECIFICATIONS Preamplifier Section Input Impedance Audio 50k Ohms Video 75 Ohms Output Impedance Audio 320 Ohms Video 75 Ohms Frequency Response 20Hz to 20kHz ± 0.5dB THD+N@ Rated Output 20Hz to 20kHz ≤ 0.01% IM Distortion CCIF @ 15kHz and 16kHz ≤ 0.009% Signal to Noise Ratio (@ 1kHz “A” weighted) ...