INSTALLATION INSTRUCTIONS
Contents
1. Loop video thru to Mini Plug Video Plug SAT into Patch Cords AN necessary 120 unswitched p _ Patch Cords _ 6015900 lt 12 gt Bh aes ideo Remote Remote SAT 1 To Sat 2 IL JR AM FM Tuner_L R ON OFF ON OFF Video OUT VA A y y i lt gt o VCR 1 Pwr nan IR OUT r SAT 1 Emitter Gate 1 Gate 8 iaa VCR 2 Pwr K o CD Changer L R 2 Emitter sensor SAT 2_V R oo z o itl 7 9 1 Emitter IR OUT To lt gt Gate 7 DVD Pwr IR OUT e Q oa Gate 2 sss VCR 2 Emitter Curent 4 88 4 Gate Current VCR 1 Q o lo e LD Emitter CD Pwr nooo ras gt in g Tuner Pwr To lt IROUT A IR OUT Gate 6 22 DVD Emitter censor bipi yo 2 Gate R ayer To E To e yere soid 120 120V CD Emitter ZONE1 ZONE2 2 itched ZONE4 20 5 ZONE6 itched2. gt 70 Watts 3 Bridged Power Output 8 gt 140 Watts Short Term Continuous one pair driven 1 kHz at rated THD THD oiiaii Deb eee ddan A aetna ae ea lt 0 08 0 Damping Factor 50 Hz 1 2 rated power gt 100 S N Ratio A Weighted ref to rated power gt 100 dB Frequency Response 1 Watt dB 8 Hz to 100 kHz Input Sensitivity Input Gain Position y 0 2 V 5 PANG se E E E E 1 0 V 0 Mine 3 3 V 3 INPUT impedance 50 kOhms 5 Power Supply sannri on n ce ie et ne cde ated 120 VAC 60 Hz Power No 35 Watts 0 29 A 6 chan 1 10 rated power 265 Watts 2 2 A 0 6 chan rated 640 Watts 5 3 A 3 chan Bridged 14 watts chan 440 Watts 3 7 A Remote ON OFF 4V to 30 Line
3. 05 5 62 64 66 Wall Speakers TV MONITOR 480 00 Dinky Link IR Receiver r 4 Conductor Home Runs CAUTION See POWER SUPPLY ONSIDERATIONS in ZPR68 10 Manual page 10 RF IN TV MONITOR TV MONITOR RF TV Signal Use RG 6 Coax Base Band Video Use RG 6 Coax RF Signal IR Signal ZPR68 10 d ZONE OL IR INP A SIX ZONE EIGHT SOURCE REMOTE PREAMP COMMON IR INDICATOR STATUS 4 i IRIN 9 3 5 to 3 5mm 28405875 000000 0000 Ni IR CONFIRM COMMON IR OUTPUTS ZONE IR OUTPUTS 2 3 4 5 6 7 8 1 2 3 4 SOURCE INPUTS ZONE PUTPUTS 688 6 AAAA ea AUDIO AUDIO 606000060 er 10 Power upply 0 EET SUPPLY fo sro MADE IN U S A Modulator 2 Input 2 Conductor
4. Plug ALL Current To Speakers Rooms Unswitched Speakers Rooms _ Unswitched Qia 9 Gate _ SENSORsinio 120V 283M 8 unswitched IR OUT Gate 4 IR OUT Gate 5 Blink IR A 5 _ o o GATEKEEP IR SOURCE COMPONENTS Emitter 8 ZONE AMPLIFIERS MODEL 640 2 10 ONLEC Pca PAG40 Fig 10 Block Diagram Channels 1 and 2 only CH2 Input STEREO DISCRETE DRIVER amp OUTPUT STAGES BRIDGED Feedback PROTECTION LED INPUT 3 CH2 Q Mute Oo INVERTER Protection Protection CH1 m CH1 Input Feedback POWER ON OFF LED MANUAL OFF Remote ON OFF REMOTE ON OFF Power Mute Fuse 220V MANUAL ON 120VAC 60 Hz Opto Isolator SPECIFICATIONS Number of Channels ccccccccccsssssceceecssseeeeccessseeeeeccessaueeecceceaseeesesesesseeeeeeseseuaesesecsesaeeeeesenssesesesceeaaeeeececsenseeeeeeeseaes 6 Power Output Rated Continuous Power Each Channel 8 ORMS 40 All 6 channels simultaneously driven 20 Hz to 20 kHz at rated THD Short Term Continuous Each Channel OHMS msec sete ey gt 50 Watts gt 2 channels driven 1 kHz at rated THD
5. 220 DIMENSIONS 13 5 L x 12 25 W x 3 6 H Ce AEA EA EE EE 14 3 Ibs 1996 Xantech Corporation All rights reserved Design and specifications subject to change without notice 3 24 99 Acao NCCC 1
6. cont d Connecting the REMOTE ON OFF Jack As mentioned under PA640 PANEL DESCRIPTIONS the REMOTE ON OFF jack allows the power to the PA640 to be turned ON and OFF by a remotely applied DC Voltage Figs 8 and 9 are typical applications using this feature Fig 8 illustrates how a PA640 can be switched ON and OFF via the switched AC outlet on the rear of a preamplifier When the preamplifier Power Switch is switched ON power is applied to the DC adapter which in turn applies 4V to 30V DC to the PA640 switching it ON Similarly when the preamplifier is switched OFF the DC voltage to the PA640 is removed turning it OFF 4V to 30V DC Adapter 3 5mm Plug plugged into a Switched Tip must be AC Outlet on Preamplifier positive Preamplifier POWER ONOFF xantech 640 SIX CHANNEL POWER AMPLIFIER SYLMAR MADE IN U S A PA640 Fig 8 REMOTE ON OFF Jack Connections Fig 9 shows two PA640 s in a typical multi room system with a Xantech ZPR68 6 zone preamp In this case the common 12V CO control output from the ZPR68 is used to remotely turn the PA640 ON OFF When any one of the zones is turned on the common 12V CO goes high turning each of the PA640 s ON Similarly when the last zone is turned OFF the 12V CO drops to OV and turns the PA640 s OFF TROUBLE SHOOTING If you encounter a problem please review the items in the following list Be sure in addition to check other s
7. plan its location carefully Pay close attention to each of the following factors 1 The amplifier is convection cooled That is it depends on the natural free flow of air over the heat dissipating fins for ad equate cooling 2 If mounted an equip ment cabinet or other con Shelf wall etc fining location allow at j Heat Dissipation es 3 inches of space Fing Aluminum mounting above the heat sink fins panel preferred see Fig 4 Be sure there are large openings to al low the entry of cool air and the escape of warm air 3 If the cabinet contains other heat generating components or you are using several PA640 s in Fig 4 Horizontal Mounting alarge multi zone system you will have to pay even closer attention to adequate ventilation 4 Donothesitate to use fans if necessary to ensure a constant flow PA640 of air over the PA640 s and the other heat generating compo nents FINS 5 The PA640 will operate when mounted either horizontally or vertically The vertical placement is preferred however since it will run approximately 5 to 10 cooler when so oriented See Fig 5 6 In multi zone installations you will have large bundles of leads to accommodate audio video and speaker connections Be sure to allow enough room for the leads and dress them so that they do not block airflow 7 Mounting the PA640 onto an aluminium panel rather than on wood or other non heat conducti
8. the position of this switch and when making the corresponding speaker connection changes gt 3 0 0 p 7 4 0 D 3 v 0 0 A es ONC PAG40 PANEL DESCRIPTIONS MANUAL ON MANUAL OFF REMOTE ON OFF 120 VAC FUSE 5A PROTECTION PROTECTION PROTECTION Vy BRIDGED SPEAKERS WwW Fig 3 PA640 Output amp AC Panel Features and Functions 6 10 PROTECTION Indicator LED s These red LED s one for each pair of channels light for 3 to 4 seconds when the amplifier senses a short circuit or a very low load impedance under 2 Ohms at the speaker terminals This protects the amplifier from potentially harmful conditions If the short condition or the input signal is not removed the amplifier will continue to cycle on and off at the 3 to 4 second interval CAUTION Do not allow this to continue for a lengthy period of time Reduce the volume remove the short or low impedance condition and try again NOTE The PROTECTION LED s will also light for 5 to 8 seconds when the amplifier is first turned on This is anormal muting function that quiets the amplifier during start up SPEAKER Terminals These plug in 4 terminal screw connectors perm
9. Flexibility The input levels are individually adjustable per stereo pair from a low of 0 2 volts up to 3 3 volts This gives the installer the ability to adjust the overall gain of the system or zone For instance there may be a need to adjust the amplifier to deliver a controlled maximum sound level into a zone when the volume control on the preamp is set to maximum This would act as a volume limiter for any particular zone i e to prevent the kids from over driving wall speakers etc 6 5 4 3 Output Flexibility Each pair of amplifiers can be bridged to allow several channel and power output capabilities It can be configured into four power packages as follows Six 40 watt amplifiers One 140 and four 40 watt amplifiers Two 140 and two 40 watt amplifiers Three 140 watt amplifiers This gives the PA640 added use in many other applications such as driving surround sound speaker systems Low Impedance Capability Each amplifier is 2 Ohm safe under music conditions in stereo mode and 4 Ohm safe when bridged This means for instance that you can drive two pairs of 8 Ohm speakers in stereo mode in each zone with ease Discrete Output Devices All output and driver transistors are separate devices connected in a full complimentary Darlington configuration This provides highest reliability in concert with highly linear dynamic performance free of and slew induced distortions Auto Protection Circuit Protects the PA640
10. INSTALLATION INSTRUCTIONS PAG40 SIX CHANNEL POWER AMPLIFIER gt 3 0 0 p 7 4 0 D 3 0 0 SOC Ls 1 GENERAL INFORMATION To enhance the ease of installation and obtain optimum performance from the PA640 we recommend that you first become familiar with all its features and special capabilities by studying the descriptions and POWER REMOTE ON OFF xantech LEVEL BRIDGED LEVEL BRIDGED LEVEL BRIDGED v 1V CH3 1V CH5 640 SIX CHANNEL POWER AMPLIFIER STEREO 2 2 2V n SYLMAR MADE IN U S A L LINE INPUTS L LINE INPUTS L LINE INPUTS INPUT PANEL Fig 1 The Model PA640 instructions in this manual The PA640 was designed to meet the audio power amplifier needs of custom installed multi zoned systems with high sonic quality It s 6 5 4 3 multichannel capability permits a wide variety of other uses as well such as surround sound home theater applications Specific features and technology are as follows Cost Size Efficiency The PA640 features six 40 watt power amplifiers This permits each PA640 to drive 3 zones in a multi zone system each with a 40 watt stereo amplifier per zone The low profile design plus multiple amplifiers in a single package delivers high quality at a reasonable price Input Level
11. RIDGED STEREO switch to the BRIDGED position NOTE Do this only on the amplifier pairs you wish to run in the bridged mode 3 Connectone speaker wire pair between the 4 terminal SPEAKERS connectors on the PA640 and the speakers as shown in Fig 7 Be sure to use only the two outer terminals marked and on the 4 terminal connec tor as shown on the panel for BRIDGED connections 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 aground or any other kind of connection to the amplifier speaker terminals other than those to the individual speakers as shown Failures caused by inappropriate connections are not covered under the warranty PROTECTION 8 LINE INPUTS Preamp Outputs ZPR68 etc RCA Type Patch Cords Set BRIDGED STEREO Switches to BRIDGED position STEREO A LINE INPUTS PA640 Input Panel PA640 Speakers amp AC Panel CH4 CH2 CH1 PROTECTION BRIDGED SPEAKERS BRIDGED SPEAKERS Be sure speakers are connected with correct K polarity as shown f i Speaker Systems Left Right Fig 7 BRIDGED Mode Connections A Pao INSTALLATION
12. commands The DC Voltage must be applied continuously to hold the ON condition and go to less than 0 5 Volt for the OFF condition NOTE The POWER switch item 8 must be left in the MANUAL OFF REMOTE ON OFF position to permit the REMOTE ON OFF jack to operate 3 Input LEVEL Control This screwdriver adjustable control for each stereo or bridged pair allows the input level for full rated power output to be adjusted over a range of 0 2 volts to 3 3 volts 24 3 dB Normally you would adjust the driving preamp to max volume then set this control to the maximum volume that the client desires for a given zone or room This prevents the system from being driven to potentially destructive power levels 4 LINE INPUTS These RCA type jacks are the audio inputs for the amplifier Connect them to the OUTPUT jacks of the driving preamp with good quality RCA type patch cables Note that the inputs are marked CH1 CH2 etc signifying the individual channels They correspond to the like marked speaker terminals on the OUTPUT amp AC panel item 7 When the switches item 5 are set to the BRIDGED mode CH1 CH3 and CH5 become the active inputs and CH2 CH4 and CH6 are disabled 5 BRIDGED STEREO Switches These switches allow each of the three pair of amplifiers to be placed in either the BRIDGED 140 Watt single channel mode or in the STEREO 40 Watts channel two channel mode CAUTION Be sure to have the POWER turned OFF when changing
13. if a short or very low impedance is detected at the speaker terminals Each amplifier pair is protected separately with an LED indicator showing which pair is in protection Normal operation is restored automatically within 3 to 4 seconds after the short is removed Remote ON OFF Jack This jack allows the PA640 to be powered on and off by a positive DC voltage ranging between 4 and 30 volts 11 12 V Specifically it permits the 12 volt CO Control Output from the Xantech ZPR68 to power one or more PA640 s on and off automatically with zone ON OFF commands E XONC CC Pao PAG40 PANEL DESCRIPTIONS REMOTE ON OFF xantech LEVEL BRIDGED LEVEL BRIDGED LEVEL BRIDGED 1 PAG4O 1V CH2 CH3 V CH5 SIX CHANNEL POWER AMPLIFIER MADE IN U S A SYLMAR CA Fig 2 PA640 Input Panel Features and Functions 3 4 5 3 4 5 3 4 5 1 POWER Indicator This green LED lights when power is turned on by the POWER switch item 8 or by a DC voltage applied to the REMOTE ON OFF jack item 2 2 REMOTE ON OFF Jack This 3 5mm mono mini jack allows the PA640 to be powered on and off by a positive DC voltage ranging between 4 and 30 volts 11 mA 12 V For instance it permits the 12 Volt CO Control Output from a Xantech ZPR68 IR controlled preamp to power the PA640 ON and OFF automatically with zone ON OFF
14. it 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 CH1 CH2 etc markings for each wire pair going to the speakers CAUTION When making connections for the BRIDGED mode remember only one speaker is being attached per amplifier pair Be sure to observe the outer and polarity markings on the 4 terminal connector as shown on the panel for the one wire pair connecting to the speaker POWER Switch When pressed to the IN position power is applied to the PA640 This is the MANUAL ON position When pressed again it releases to the OUT position MANUAL OFF turning the unit OFF In addition this switch must be left in the MANUAL OFF REMOTE ON OFF position to permit external DC Voltage control of power ON OFF for the PA640 NOTE The PA640 may also be powered ON OFF with an external AC line switch such as the switched AC outlet of a preamp timer etc For this type of operation leave the POWER switch depressed to the MANUAL ON position AC LINE Cord Depending on the application plug into a switched or un switched 120V 60 Hz AC outlet FUSE When required replace only with a fuse of the same type and rating 5 A 220V AC Replacement with a fuse of higher rating will not protect the amplifier and will void the warranty eS ONL Ss 640 INSTALLATION PHYSICAL LOCATION AND MOUNTING When you mount the PA640 you need to
15. ng material will add additional heat dissipation capability See Fig 4 amp 5 8 Use the 4 holes on the chassis skirts and the screws provided to mount the 640 E J Aluminum mounting panel preferred Fig 5 Vertical mounting preferred acao Neh gt 3 9 0 p 7 4 0 D 3 v 0 0 INSTALLER S NOTES XONC CC INSTALLATION cont d CONNECTING THE PA640 When making connections to the PA640 be sure the power cord is unplugged Proceed as follows Stereo Mode Connections 1 Using good quality RCA type patch cables connect the L and R OUTPUT jacks of the driving preamp to the CH1 CH2 etc LINE INPUTS jacks the PA640 Do this for each amplifier pair Refer to Fig 6 2 Slide the BRIDGED STEREO switch to the STEREO position 3 Using good quality speaker wire connect the individual speaker leads to the 4 terminal SPEAKERS connectors on the PA640 as shown 4 Even though the PA640 is 2 Ohm safe in Stereo Mode make sure the impedance presented to the speaker terminals by the speakers or any combination of speak ers is 4 Ohms minimum 5 Be sure to observe correct polarity by connecting and terminal from each channel on the PA640 to the corresponding and terminals on each s
16. peaker This will ensure correct phasing See Fig 6 and Speaker Phasing below Since the connectors are removable you may unplug them for ease of lead assembly 6 Asarule of thumb use 18 gauge speaker wire for speaker runs upto 30 16 gauge upto 70 14 gauge upto 150 The 4 terminal connectors accept wire sizes up to 12 gauge max 7 Strip the insulation back about 1 4 and twist the strands on each lead to prevent fraying CAUTION After lead ends are inserted and the screws tightened down be sure there are no free strands that could cause shorting Speaker Phasing To obtain stable imaging and full bass response it is imperative that stereo speakers be connected in phase with each other You can verify this as follows 1 If the positive and negative terminals on your speakers are correctly marked and visible and you have wired the system as shown in Figs 6 and 7 then the system will be in phase No further action is required Most manufacturer s identify the positive terminal with a red binding post sign or a red dot 2 If you are unsure of the markings you can verify the phasing Using mono sound source such as AM radio alternately reverse the leads to one of the speakers Pick the connection that delivers a solid center image between the speakers along with best bass response A es ONC 7 Preamp Outputs ZPR68 etc RCA Type Patch Cords Se
17. t BRIDGED STEREO Switch to STEREO position LINE INPUTS PA640 Input Panel PA640 Speakers amp AC Panel CH2 CH1 PROTECTION BRIDGED SPEAKERS Be sure speakers are connected with correct y polarity as shown Wall speakers shelf speakers etc Left Right gt 3 9 0 p 7 4 0 D 3 0 0 Fig 6 STEREO Mode Connections INSTALLATION cont d Bridged Mode Connections In general itis recommended that the BRIDGED mode not be used in multi room applications where several speakers are driven through room volume controls and the like For such applica tions use the STEREO mode Instead use the BRIDGED mode for single speaker higher power applications such as in surround sound systems Use speakers with an impedance rating of 8 Ohms minimum make connections for the BRIDGED mode follow the steps given before for stereo connections but with the follow ing exceptions 1 Connect RCA type patch cables from the OUTPUT jacks of the driving preamp or other source to the PA640 LINE INPUT jacks marked CH1 and or CH3 and or CH5 Do this for just the amplifier pairs you wish to run in the bridged mode Jacks marked CH2 CH4 8 CH6 are disabled in BRIDGED mode Refer to Fig 7 CAUTION sure power is OFF when connecting or switching the amp for BRIDGED operation 2 Slide the B
18. ystem components such as preamplifiers CD players speakers speaker wiring etc that may be at fault PROBLEM PROBABLE CAUSE AND SOLUTION e Check line cord for good contact in a live AC outlet Power Indicator does not light no sound If REMOTE ON OFF jack is used be sure applied voltage is between 4V and 30V DC with proper polarity See Fig 8 No sound from CH2 CH4 or CH6 when BRIDGED STEREO switch is incorrectly set to BRIDGED stereo operation is desired position Set to STEREO position See Fig 6 Speaker load impedance is less than 2 Ohms for Stereo mode or Sound cuts in and out every 3 to 5 seconds less than 4 Ohms for Bridged mode Make changes in speakers as necessary to obtain higher impedance PA640 does not turn OFF when REMOTE Be sure that the POWER switch item 8 fig 3 is set to the input voltage goes to 0 Volts MANUAL OFF REMOTE ON OFF position PA640 becomes very warm shuts OFF Set POWER switch item 8 Fig 3 to MANUAL OFF OUT does not come back ON automatically position for 15 seconds then back ON If REMOTE ON OFF jack is used unplug for 15 seconds then replug A es ONC Ls 9 gt 3 9 0 p 7 4 0 D 5 v 0 0 Fig 9 A Multi Zone System Using Two PA64 RF IN TV MONITOR EEEE 780 80 J Box IR Receiver XANTECH S 62 64 66 Wall Speakers L
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