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K R A ME R E LE CT R O N IC S L T D .

PRELIMINARY

USER MANUAL

MODEL:

PA-150

70V/100V 50W

Power Amplifier

P/N: 2900-300406 Rev 1

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Summary of Contents for PA-150

Page 1: ...KRAMER ELECTRONICS LTD PRELIMINARY USER MANUAL MODEL PA 150 70V 100V 50W Power Amplifier P N 2900 300406 Rev 1 ...

Page 2: ......

Page 3: ...ating the PA 150 11 6 1 Indicators 11 7 Troubleshooting 12 8 Technical Specifications 13 Figures Figure 1 PA 150 50W Power Amplifier Rear Panel 5 Figure 2 Connecting the PA 150 50W Power Amplifier 6 Figure 3 Connecting a Balanced XLR Input 7 Figure 4 Connecting a Balanced 6 5mm Phone Jack 8 Figure 5 Connecting an unbalanced RCA Input 8 Figure 6 Connecting an unbalanced 6 5mm Phone Jack 8 Figure 7 ...

Page 4: ...fined by function GROUP 1 Distribution Amplifiers GROUP 2 Switchers and Matrix Switchers GROUP 3 Control Systems GROUP 4 Format Standards Converters GROUP 5 Range Extenders and Repeaters GROUP 6 Specialty AV Products GROUP 7 Scan Converters and Scalers GROUP 8 Cables and Connectors GROUP 9 Room Connectivity GROUP 10 Accessories and Rack Adapters and GROUP 11 Sierra Products GROUP 12 Digital Signag...

Page 5: ...erence deterioration in signal quality due to poor matching and elevated noise levels often associated with low quality cables Do not secure the cables in tight bundles or roll the slack into tight coils Avoid interference from neighboring electrical appliances that may adversely influence signal quality Position your Kramer PA 150 away from moisture excessive sunlight and dust This equipment is t...

Page 6: ...ected and recycled To comply with the WEEE Directive Kramer Electronics has made arrangements with the European Advanced Recycling Network EARN and will cover any costs of treatment recycling and recovery of waste Kramer Electronics branded equipment on arrival at the EARN facility For details of Kramer s recycling arrangements in your particular country go to our recycling pages at http www krame...

Page 7: ... amplifier for balanced signals that can output 50W of audio into 70V or 100V speaker systems The PA 150 50W Power Amplifier features Output power 50 W into one channel 70V or 100V amplification Line level balanced input Input level sensitivity adjustment Remote volume and mute control ...

Page 8: ...ckwise to decrease the level 3 REMOTE 4 pin Terminal Block Connect to the remote 10v volume control for example the W LM and mute switch see Section 5 4 4 ON LED Lights blur when the device receives power 5 SIGNAL LED Lights green when there is an input signal present 6 CLIP LED Lights red when the signal clips on the output 7 POWER 2 pin Terminal Block Connect to the power supply provided see Sec...

Page 9: ...ts see Section 5 2 Connecting speakers see Section 5 3 Connecting the Remote Volume Control see Section 5 4 5 1 Connecting the PA 150 Always switch off the power to each device before connecting it to your PA 150 After connecting your PA 150 connect its power and then switch on the power to each device Figure 2 Connecting the PA 150 50W Power Amplifier i ...

Page 10: ...he power adapter to the PA 150 and plug the power adapter into the mains power supply 5 2 Wiring the Inputs Your PA 150 is provided with a 3 pin terminal block for its input connection This connector can accept either a balanced or an unbalanced signal however some modifications must be made for an unbalanced connection 5 2 1 Wiring Balanced Inputs When using a balanced input source and connector ...

Page 11: ...g an unbalanced input source a jumper must be added between the negative and ground terminals The unbalanced source is connected to the positive and ground terminals Note A jumper is required for connecting an unbalanced input Figure 5 Connecting an unbalanced RCA Input Figure 6 Connecting an unbalanced 6 5mm Phone Jack ...

Page 12: ...rements for connecting the PA 150 to speakers Distance ft Wire Gauge AWG Up to 500 22 500 to 1000 20 Over 1000 18 Note Only one of the outputs can be used at a time When connecting more than one speaker they must be connected in parallel as shown in Figure 7 100V speakers and Figure 8 70V speakers Figure 7 Connecting One or Multiple Speakers to the PA 150 100V ...

Page 13: ... the PA 150 70V 5 4 Connecting the Remote Volume Control The following diagram illustrates how to connect the W LM Remote Volume Control to the PA 150 Note The remote volume control overrides the level control on the rear of the device Figure 9 Connecting the Remote Volume Control ...

Page 14: ... Operating the PA 150 6 1 Indicators The following table details the LED indicators Label Color Description SIGNAL Green There is an input signal present ON Blue The device is receiving power CLIP Red The input signal is being clipped ...

Page 15: ...ED lights to denote a signal If there is no signal detected check the signal source and that the level controls are set high enough Amplifier overheats and or shuts down Check the CLIP LED on the rear of the amplifier to see if the signal is overdriving the signal light flashes red frequently Overdriving the amplifier for extended periods can cause a thermal shutdown Output sound is distorted or c...

Page 16: ...NDARD VOLTAGE GAIN 150X 43dB 70V INPUT IMPEDANCE Balance Unbalanced 20kΩ 10kΩ INDICATOR LEDs On Signal Clip POWER CONSUMPTION 48V DC 1 3A CLASS D OPERATING TEMPERATURE 0 to 40 C 32 to 104 F STORAGE TEMPERATURE 40 to 70 C 40 to 158 F HUMIDITY 10 to 90 RHL non condensing COOLING Convection ENCLOSURE TYPE Aluminium chassis PLENUM RATING UL 2043 Approved DIMENSIONS 15 2cm x 10 2cm x 3 2cm 6 0 x 4 0 x ...

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Page 18: ...isit our Web site where updates to this user manual may be found We welcome your questions comments and feedback Web site www kramerelectronics com E mail info kramerel com SAFETY WARNING Disconnect the unit from the power supply before opening and servicing P N 2900 300406 Rev 1 ...

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