Table of Contents
Advertisement
Advertisement
Table of Contents
Related Manuals for Inter-m PAM-240A
Summary of Contents for Inter-m PAM-240A
- Page 1 PAM-240A/360A Public Address Amplifier CLIP PROT CHANNEL 1 CHANNEL 2 CHANNEL 3 CHANNEL 4 CHANNEL 5 CHANNEL 6 BASS TREBLE MASTER CHIME POWER SP 1 SP 2 SP 3 SP 4 SP 5 SPEAKER SELECTOR -12dB +12dB -12dB +12dB...
-
Page 2: Table Of Contents
Contents Contents Welcome Warning............................1 Unpacking ............................2 Installation Environment............................2 Important Safety Instructions......................2 Features ............................3 Accessories.............................3 Operation ............................3 Front Panel ............................4 Rear Panel ............................6 Connecting Speakers ........................9 Applications ..........................10 Block Diagram ..........................11 Specifications ..........................12 Service Procedures............................13 Schematic .............................13 Parts List ............................13 Variations and Options .......................13 Warranty ............................13... -
Page 3: Warning
Care should be taken so than objects do not fall and liquids are not spilled into the enclosure through openings.” PAM-240A/360A... -
Page 4: Unpacking
PUBLIC ADDRESS AMPLIFIER Unpacking Although your PAM-240A or PAM-360A is neither complicated nor difficult to operate, we recommend you take a few minutes to read this brief manual and familiarize yourself with the important information regarding product features, setup and operation. -
Page 5: Features
Optional modules can be installed in multiple configurations for convenience and ease of use. Choose the PAM-CDA (Compact Disc), PAM-T (AM/FM Tuner) or PAM-D (Cassette Deck) modules to expand the PAM-240A/360A’s audio capabilities. - INDIVIDUAL INPUT GAIN CONTROLS Rear-panel gain controls for each input channel for total control of individual levels. -
Page 6: Front Panel
Individual Bass and Treble controls are used to cut (decrease) or boost (increase) the lower and higher frequencies ±12dB. 6. MASTER VOLUME This rotary switch controls the overall output volume of the amplifier’s output signal. 7. CHIME BUTTON Pressing this switch activates the chime circuitry. PAM-240A/360A... - Page 7 These switches are used to select output to any combination of up to five individual speakers. 9. POWER SWITCH Pressing this switch turns the unit on, as indicated by the Power LED above the switch. Pressing it again turns the unit off. PAM-240A/360A...
-
Page 8: Rear Panel
Connect up to five individual speakers to this strip. Impedances for 70V and 100V operation are shown below. Connect speakers whose combined impedance is equal to or higher than the rated output impedance, as shown below. MODEL 100/250V PAM-240A 20.4Ω 41.7Ω PAM-360A 13.6Ω... - Page 9 When used with the optional PAM-T module, these terminals supply music-on-hold to the telephone system. NOTE: When the tuner is turned on, signal from the tuner is constantly sent to these terminals, and is unaffected by the Master Volume or the PAM-T’s volume control. PAM-240A/360A...
- Page 10 If the fuse continues to blow, refer servicing to a qualified service technician. AC Fuse Ratings MODEL 100VAC – 120VAC 230VAC – 240VAC PAM-240A 6.3A/250V 4A/250V PAM-360A 8A/250V 4A/250V 14. REMOTE CONTROL INPUT By connecting a 15-pin D-SUB connector, it is possible to control speaker zone selection and activate the chime via wired remote.
-
Page 11: Connecting Speakers
- CONNECTING HIGH-VOLTAGE DISTRIBUTED SPEAKER SYSTEMS When connecting a low-impedance (70V/100V) speaker system in parallel, you can connect speakers with a total rated input of up to 240W (PAM-240A) or 360W (PAM-360A). SPEAKER SELECTOR SP 5 SP 4 SP 3 SP 2 SP 1... -
Page 12: Applications
TRIM TRIM TRIM TRIM TRIM TRIM MUSIC CHIME MUTE LINK OUT LINK IN HOLD AC INPUT 230V 50Hz, 260W AC FUSE T4AL/250V REMOTE PREAMP OUT AMP IN CH 6 CH 5 CH 4 CH 3 CH 2 CH 1 PAM-240A/360A... -
Page 13: Block Diagram
PUBLIC ADDRESS AMPLIFIER Block Diagram Block Diagram PAM-240A/360A... -
Page 14: Specifications
PUBLIC ADDRESS AMPLIFIER Specifications Specifications - AMPLIFIER SECTION Rated Output Power (THD 1%) ................PAM-240A : 240W (RMS) ........................PAM-360A : 360W (RMS) Frequency Response........................80Hz~20kHz T.H.D.(at 1kHz Half Power Output)....................Less than 1% S/N ............................Better than 95dB Input Sensitivity/Impedance CH1~CH6 ........................1mV~160mV/600Ω Link In ..........................100mV/10kΩ... -
Page 15: Service
To obtain specific warranty information and available service locations contact Inter-M directly(in Korea or the USA) or the authorized Inter-M Distributor for your specific country or region. PAM-240A/360A... - Page 16 Inter-M, Ltd. (Korea) began operations in 1983. Since then, Inter-M has grown to become one of the largest manufacturers of professional audio and commercial sound electronics equipment in the world. Inter-M has gained worldwide recognition for its own branded products, as well as private label manufacturing of electronics sold under other names (OEM).