Theta Digital Intrepid manual

THETA DIGITAL CORPORATION Intrepid Owner’s Manual[...]

PREF A CE CONGRA TULA TIONS You have just acquired one of the mo st advanced and versatile com ponents for the am plification of audio ever to have been developed. IMPORTA NT Save all pack aging in a dry place away from fire hazards. Your Intrepid is a precision electronic instrument and should be properly pack aged any time shipm ent is m ade. In [...]

ii The lightning flash with arr owhead symbol , within an equil ateral triang le, is intended to alert the user to the presence of uninsulated “danger ous voltage” within the product’ s enclosure that may be of significant mag nitude to constitute a risk of electric shock to per sons. The exclamation point wi thin an equilater al triangl e is[...]

iii Intrepid Identification Record This infor mation is f or your records and for f uture identification of the Intrepid. Please tak e a m oment to f ill out all pertinent data now, and as upgrades and/or options are installed. Whene ver upgrades, inquiri es and/or changes are requested, the serial number will be required. S E R I A L N U M B E R D[...]

iv SA FETY PRECA UTIONS Please c arefully read eac h item of the operating instruc tions and saf ety precautions before ins talling and using this product. Us e extra care to f ollow the warnings written on the product itself and/or in the operating instructions . Keep the operating instruc tions and safety precautions f or future r eference. CA UT[...]

v Table of Contents PREFAC E ........................................................................................................................ ................................... i WARNING ...................................................................................................................................................... ii [...]

1 INTRODUCTIO N Getting to know y our Intrepid This Intrepid has been put through a rigorous and unique testing procedur e that ensures that it will last for many y ears with m inimal s ervice requirem ents. T his proc edure includes the f ollowing: • All assem bled circ uit boards are given a thorough vis ual inspection and are then tes ted in a[...]

2 IMPORTA NT NOTICE I. It is im perative that the Intrepid be connec ted to a ground via its three wire AC power cord. It is impor tant that the AC power outlet, which the Intrepid is plugged into, is ac tually grounded. Failure to do so will severely compr omise the per form ance, reliability and safety of use of the Intr epid. II. Ventilation is [...]

3 Intrepid Block Diagram Figure 1 - Block Diagram (Intrepid show ing one output module)[...]

4 Front Panel Lay out Figure 2 - Front Panel Lay out 1. STANDBY button. After the rear panel MA IN P OWE R switch is turned on press the f ront panel ST A NDBY button to exit the standby mode. All channels will come out of standby. 2. STANDBY LED. Illuminates r ed when the power amplifier is in STANDBY , green when the amplif ier is active. 3. THE [...]

5 Rear Panel Lay out Figure 3 – Rear Panel Lay out showing the optional RS-232 Jacks installed 1. BINDING POST . Connec t plus and m inus speaker wires for one s peaker to appropr iately m arked ter minals of each post. T he binding posts can ac cept spade lugs, banana plugs or bare wire. 2. SINGLE-ENDED input jack . 3. BA LA NCED input jack . 4.[...]

6 OPERA TION Before tur ning on the Intrepid, ensure that all prec autions and warnings have been carefully reviewed and adhered to. Damage to the Intr epid caused by improper operation, wiring and/or ventilation will not be covered under warr anty and Theta will not be liable f or any cons equential damage or loss. Connecting the Intrepid W ith th[...]

7 A ppendix A Troubleshooting Guide If the Intrepid s hould function abnorm ally during operation, please review the item s in the following check list. Please be sure to thoroughly chec k all other c onnected com ponents suc h as speak ers, pream plifier s, as well as cables. Symptom Possible Cause(s) Remedy No power or front panel lights and no s[...]

8 A ppendix B Wiring Diagram This section provides an exam ple illust ration of an input and output wiring schem e. Befor e mak ing any connections, please tur n off ALL audio and video devices. Unplug those that do not have a m ain power switch. It is recom mended that all cables, including s peaker c ables be kept as short as pos sible for bes t [...]

9 A ppendix C RS232 Protocol RS232 settings are inter nally def inable via jumper block s, to acc omm odate interf acing with a wide range of control products. Baud rate 9600 or 19200 Echo status AUTO or REQUEST Baud rate: Maxim um num ber of bits per sec ond. The duration of a single bit is equal to 1 / baud rate. Echo s tatus: Specifies whether t[...]

10 Comm and Descripti on Argum ent 1 Argum ent 1 Description Argum ent 2 Argum ent 2 Desc Argum ent 3 Arg 3 Desc 01 Standby 0 Main standby 0 Put unit in standby 0 Main s tandby 1 Tak e unit out of standby. 02 Status 0 Return am plifier st atus. The RS232 c an be set using a hardware jum per to autom atically send changes to the RS232 port. Five by [...]

11 RS232 Hardware Connections Figure 5 – Intrepid RS232 Jack Pinout[...]

12 Figure 6 – Intrepid RS232 Jumper Settings RS232 Jumper Settin gs There ar e 2 possible Baud rates: 9600 and 19200 . The fac tory default is 19200 . To change the baud r ate to 9600 , move the j umper to the center and top pins (if the RS232 board is orientated as in figure 6). The STATUS can be returned to the c ontroller either: autom aticall[...]

13 A ppendix D Specifications Inputs: Analog audio : 1 Single-ended per channel (RCA). 1 Balanced per channel (XLR). Input Impedance: 50 K Ω Single-Ended or Balanced, for each phase. Input sensitivity: (Single-Ended) 1.5V RM S input for 100W into 8 ohms. (Balanced) 0.75V RM S input for 100W into 8 ohms. Gain: (Single-Ended) 25.5dB (19x). (Balance[...]

90 DAY LIMITED W ARRANT Y TERMS AND CONDITIONS (3 Year optional extended servic e contract) GB 1.01 14 1. Theta Digital Corporation, henceforth referred to as T heta, warrants the product designated herein to be free of manufacturing defects in material and w orkmanship, subject to the conditions set forth herein, for a period of 90 days from the d[...]