Xantech PA1235 инструкция обслуживания

®  1 Amplifiers & Preamplifiers INST ALLA TION INSTRUCTIONS P A1235 2 CHANNEL POWER AMPLIFIER 123456 PA1235 12 CHANNEL POWER AMPLIFIER POWER GENERAL INFORMATION To enhance the ease of installation and obtain optimum performance from the PA1235, we recommend that you first become familiar with all its features and special capabilities by stu[...]

®  2 • 12-11-10-9-8-7-6 Output Flexibility. Each of the 12 amplifiers can be driven singly or bridged to allow several channel and power output capabilities. It can be configured into seven power packages as follows: - Twelve 35-watt amplifiers - 12 total. - One 150 and ten 35-watt amplifiers - 11 total. - Two 150 and eight 35-watt amplifiers[...]

®  3 Amplifiers & Preamplifiers In addition, this switch must be left in the MANUAL OFF (OUT) position to permit an external DC Control Voltage to power the PA1235 ON and OFF. Refer to " REMOTE MASTER ON/OFF CONTROL " terminals, item #13. NOTE: The PA1235 may also be powered ON/OFF with an external AC line switch into which the po[...]

®  4 8. COMMON AUDIO BUS. A single audio source, such as from a connected preamp, can drive one or more of the amplifier pairs simultaneously, as desired, from this Bus. Any of the amplifier pairs can be switched to the COMMON AUDIO BUS at will by use of the COMMON BUS / LOCAL Switch (see also item #6). 9. LEVEL (System) RESET Button. Pressing [...]

®  5 Amplifiers & Preamplifiers 12. SPEAKER Terminals. These plug-in 4-terminal screw type connectors permit speaker wire sizes up to 12 gauge. When making connections for the STEREO mode, be sure to observe the " + " and " – " polarity markings, just under the LEFT & RIGHT markings, for each wire pair going to the[...]

®  6 • Since it includes adjustable code groups, the user may inadvertently alter the installer configurations. • Also, since the user will require IR commands from other brands of equipment to control the total system, in addition to those of the PA1235, all commands should be consolidated into one learning device, for ease of use. APPLICA[...]

®  7 Amplifiers & Preamplifiers 7. MUTE ON / OFF . Separate ON / OFF Mute commands give positive mute action without knowing the actual mute status. This is very helpful in a remote room where commands are sent “ blind ” without any visual aids for status. NOTE : In addition to MUTE OFF, the muted condition can be released with VOLume ([...]

®  8 2. If mounted in an equipment cabinet or other confining location, allow at least 2 inches of space above the top cover (see Fig. 4 ). Be sure there are large openings in the shelf below the unit and in the cabinet to allow the entry of cool air and the escape of warm air. 3. If the cabinet contains other heat generating components or you [...]

®  9 Amplifiers & Preamplifiers 6. As a rule of thumb, use 18 gauge speaker wire for speaker runs up to 30' (9m), 16 gauge up to 70' (21m), and 14 gauge up to 150' (39m). The 4-terminal connectors accept wire sizes up to 12 gauge max. 7. Strip the insulation back about 1/4" (6mm) and twist the strands on each lead to pre[...]

®  10 NOTE: Only one speaker is connected per amplifier pair in the BRIDGED mode! CAUTION: When operating in the BRIDGED mode (particularly when bench testing the amplifier) do not make a ground or any other kind of connection to the amplifier speaker terminals other than those to the individual speakers as shown. Failures caused by inappropria[...]

®  11 Amplifiers & Preamplifiers REMOTE MASTER ON/OFF CONTROL 5-30 VOLTS DC + -- N/C GROUND STA TUS IR IN COMMON AUDIO BUS AC LINE ON/OFF COMMON BUS LOCAL LEFT RIGHT STEREO MONO BRIDGED CI GROUND STA TUS IR IN LEFT RIGHT SPEAKER + -- -- + + BRIDGED -- 1 COMMON BUS LOCAL LEFT RIGHT STEREO MONO BRIDGED CI GROUND STA TUS IR IN LEFT RIGHT SPEAK[...]

®  12 8. To keep the system cost low, no AC power management is included. The user would need to operate the power switching for each component individually, using front panel power switches, or IR, as appropriate. Individual room Standby ON/OFF is provided, however. The STATUS of Standby ON/OFF is indicated at the IR receivers and keypads via [...]

®  13 Amplifiers & Preamplifiers REMOTE MASTER ON/OFF CONTROL 5-30 VOLTS DC + -- COMMON BUS LOCAL LEFT RIGHT STEREO MONO BRIDGED CI GROUND STA TUS IR IN LEFT RIGHT SPEAKER + -- -- + + BRIDGED -- 2 COMMON BUS LOCAL LEFT RIGHT STEREO MONO BRIDGED CI GROUND STA TAUS IR IN LEFT RIGHT SPEAKER + -- -- + + BRIDGED -- 3 CAUTION RISK OF ELECTRIC SHO[...]

®  14 REMOTE MASTER ON/OFF CONTROL 5-30 VOLTS DC + -- N/C GROUND STA TUS IR IN COMMON AUDIO BUS AC LINE ON/OFF COMMON BUS LOCAL LEFT RIGHT STEREO MONO BRIDGED CI GROUND STA TUS IR IN LEFT RIGHT SPEAKER + -- -- + + BRIDGED -- 1 COMMON BUS LOCAL LEFT RIGHT STEREO MONO BRIDGED CI GROUND STA TUS IR IN LEFT RIGHT SPEAKER + -- -- + + BRIDGED -- 2 COM[...]

®  15 Amplifiers & Preamplifiers TROUBLE SHOOTING If you encounter a problem, please review the items below. Be sure, in addition, to check other system components, such as preamplifiers, CD players, speakers, speaker wiring, etc., that may be at fault. 1. Front Panel LEDs do not light – no sound. • Check line cord for good contact in a[...]

®  16 SPECIFICATIONS Number of Channels ............................................................................................................ .........................................12 Power Output Rated Continuous Power, Each Channel: ............................................. 8 Ohms .......................... 35 Watts All 12 channe[...]