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Page 6 

 

Model PA635 

 

© 2001 Xantech Corporation. 

word "BRIDGED" on the panel above the 4-terminal connector when connecting the 2-conductor wire to the 
speaker. 

 
13. 

REMOTE MASTER ON/OFF CONTROL

. This 2-terminal connector allows the entire PA635 to be powered 

ON and OFF by a control voltage ranging between 5 and 30 Volts DC (16mA @ 12 V).  Be sure to observe 
the marked polarity.  For instance, the 12 volt common CO (Control Output) of the Xantech ZPR68 preamp 
will power the PA635 ON and OFF automatically with the first zone ON and last zone OFF commands.  The 
DC Voltage must be applied continuously to retain the ON condition and drop to less than 0.5 Volt to switch to 
the OFF condition. 

 
 

NOTE:

 The front panel POWER switch (item #3) must be left in the Manual OFF (Out) position and the 

Master AC Line Switch (item #17) set to ON (I) to permit the REMOTE MASTER ON/OFF CONTROL to 
operate.  See also CAUTION notes, Fig. 9. 

 
14. 

Rear Panel ON/OFF LED

.  This LED indicates the power ON/OFF condition of the entire PA635, whether 

activated by a REMOTE MASTER ON/OFF CONTROL voltage (item #13) or from the front panel POWER 
switch (item # 3). 

 

15. 

Common IR IN and STATUS Connector

. This 4-terminal connector provides the same type of IR control 

functions as that of the individual amplifier pairs (item #11) except they apply to all amplifier pairs in common.  
That is, IR commands for Volume, Mute, etc., control all amplifier pairs together.   

 
 

NOTE

:  Individual control of amplifier pairs is possible, however, through the Common IR IN, provided the IR 

Code Group is changed on amplifier pairs you wish to control separately.  The STATUS output goes high and 
low with the AC Power ON/OFF state of the entire PA635.  It does not respond to a Common IR OFF/ON 
(Standby) condition. 

 
16. 

Grounding Screw

.  Provides a means for chassis connection to earth ground or to other A/V products to aid 

in the reduction of system noise, etc., where needed.  

 
17. 

Master AC LINE ON/OFF Switch

.  Turns power OFF to the entire PA635, regardless of IR, Control IN, or 

front panel POWER switch conditions.  Must be placed in the ON (I) position for the other power switching 
functions to work.  

 
18. 

3-Conductor AC Line Cord Receptacle

.  Standard IEC male receptacle for plug-in of a 3-conductor power 

line cord.  Depending on the application, plug the line cord into a switched or un-switched 120V 60 Hz AC 
outlet (or 240 VAC 50 Hz on the 240 V version). 

 

RC68+ (or RC68) Programmer / Remote Control 

 
The RC68+ Programmer (available separately) contains all the commands necessary to operate the IR control 
functions of the PA635.  
 
You will need it to program universal learning devices such as the Xantech URC-2 learning remote, Xantech 
SmartPads, 590-10 Programmable Controller, 710 Fone Link, etc., with commands that operate the PA635. 
 

NOTE

: The RC68+ codes operate many other Xantech models as well, such as the RGC11, CC12, ZPR68, etc.  

Therefore, 

only the button descriptions that apply to the operation of the PA635 are listed below

.  All others 

should be ignored. 
 

CAUTION

:  While the RC68+ can be used as a handheld remote control, it is highly recommended it not be given 

to the final user for the following reasons:  

• 

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 PA635, all commands should be consolidated into one learning device, for ease 
of use. 

Summary of Contents for PA635

Page 1: ...ROL 6 PHYSICAL LOCATION AND MOUNTING 9 CONNECTING THE PA635 10 Stereo Mode Connections 10 Speaker Phasing 11 Bridged Mode Connections 11 Typical Applications 12 A Basic Common IR Bus System Dedicated...

Page 2: ...rom an RC68 or RC68 The maximum input sensitivity at full volume is 0 5 volts for rated output 35 Watts channel Local or Common Bus Each stereo pair can be fed audio individually via their LOCAL input...

Page 3: ...any power interruptions Low Impedance Capability Each amplifier is 4 Ohm safe under music conditions in stereo mode and 8 Ohm safe when bridged This means for instance that you can drive two pairs of...

Page 4: ...to Red NOTE Red indicates that volume gain setting is approaching maximum not an indication of power output level WARNING TURN POWER OFF BEFORE CHANGING MODES CAUTION RISK OF ELECTRIC SHOCK DO NOT OP...

Page 5: ...rol in disabled Changes CI control to IR control of Standby ON OFF CI enables when 5 to 30 VDC is applied to CI for 2 or more seconds See also item 11 NOTE The PA635 will always return to last set val...

Page 6: ...with the AC Power ON OFF state of the entire PA635 It does not respond to a Common IR OFF ON Standby condition 16 Grounding Screw Provides a means for chassis connection to earth ground or to other A...

Page 7: ...fixed preset levels on the PA635 This is useful when setting up audio scene ambiance levels for rooms or partial mute actions The RC68 buttons that select a fixed level attenuation below Max Volume i...

Page 8: ...In addition to MUTE OFF the muted condition can be released with VOLume item 8 Preset Level item 2 and Balance items 4 5 commands 8 Volume Up Down Commands When pressed in individual steps volume inc...

Page 9: ...nd the escape of warm air NOTE Do not remove feet in shelf top installations 3 If the cabinet contains other heat generating components or you are using several PA635 s in a large multi zone system yo...

Page 10: ...2 Slide the MODE switch to the STEREO position 3 Using good quality speaker wire connect the individual speaker leads to the 4 terminal SPEAKER connectors on the PA635 as shown 4 The PA635 is 4 Ohm sa...

Page 11: ...ds to one of the speakers Pick the connection that delivers a solid center image between the speakers as well as best bass response Bridged Mode Connections In general it is recommended that the BRIDG...

Page 12: ...evel volume controls and their attendant power losses and reduced sound quality A Basic Common IR Bus System Dedicated Keypads and Remotes A typical system using a low cost approach is shown in Fig 8...

Page 13: ...ng Block 780 80 J Box IR Receiver ROOM 2 R L ST G V IR ROOM 1 R L Smart Pad 3 ST G V IR IR CONFIRM V V POWER 15VAC VIDEO AUDIO LEFT INPUT OUTPUT AUDIO RIGHT 1 2 3 4 G IR IN SYLMAR CA MADE IN U S A RS4...

Page 14: ...ayers of complexity and cost that would best be handled by a ZPR68 10 10 When connecting speakers for each room be sure to observe correct polarities as shown in Fig 6 A Basic Dedicated IR System Non...

Page 15: ...G A B A B A B ZONE 4 ZONE 5 ZONE 6 12 OUT G SYLMAR CA MADE IN U S A ZONE EMITTERS ZONE EMITTERS 796 20 SIX ZONE CONNECTING BLOCK EXPANDER 780 80 J Box IR Receiver ROOM 2 R L ST G V IR ROOM 1 R L Smart...

Page 16: ...item 10 Fig 3 NOTE Do not use the 220 Ohm resistor when connecting to the CO terminals of a ZPR68 REMOTE MASTER ON OFF CONTROL 5 30 VOLTS DC LEFT RIGHT COMMON AUDIO BUS CI GROUND STATUS IR IN WARNING...

Page 17: ...ed by IR control of the ZPR68 10 The PA635 amplifier pairs are all set to the default volume level setting by pressing the LEVEL System RESET button refer to item 9 Fig 3 AC Power Management of the en...

Page 18: ...peakers as necessary to obtain higher impedance PA635 does not turn OFF when REMOTE input voltage goes to 0 Volts Be sure that the POWER switch item 3 Fig 2 is set to the MANUAL OFF Out position PA635...

Page 19: ...t 1 Watt 3dB 12 Hz to 55 kHz Input Sensitivity at rated power stereo mode input gain IR controlled setting Max 0 5 V Default 1 0 V Minimum Off Input Impedance Local Inputs 22 kOhms Common Audio Bus In...

Page 20: ...Page 20 Model PA635 2001 Xantech Corporation Part No 08901150 Rev A 01 02 2002...

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