® Williams Sound Helping People Hear MANUAL AND USER GUIDE PERSONAL PA™ T35 Transmitter Wireless FM Listening System Transmitter Model PPA T35 Optional Receiver Models PPA R7, R7-4, R19, R19-6, R35, R35-8 MAN 110 G
PERSONAL PA™ T35 TRANSMITTER MANUAL AND USER GUIDE CONTENTS PAGE SYSTEM OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 QUICK SETUP INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 DETAILED INSTALLATION INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 SELECT A LOCATION . . . . . . .
SYSTEM OVERVIEW The PPA T35 is an FM Wide-band / Narrow-Band transmitter which operates in the 72-76 MHz frequency bandwidth. It is designed to be used with battery powered FM receivers: Compatible Williams Sound receivers include the R7, R7-4 (Wide-Band), and the R19 and R19-6 (Narrow-band). Please contact Williams Sound Corp. for more information on available receivers: 800-843-3544. Or, visit us on the web: www.williamssound.com.
QUICK SETUP INSTRUCTIONS STEP 1: Position the PPA T35 transmitter near the sound system or mixer from which it will receive audio. STEP 2: Install the ANT 025 whip antenna. Gently thread the ANT 025 onto the stud recessed in the hole on the top of the transmitter. For best performance, extend the antenna to its maximum height (39”). STEP 3: Connect the power supply to the “Power In” connector (Figure 5) located in the back of the T35. Press in the power button on the front of the T35.
SETTING UP þ THE T35 - DETAILED INSTRUCTIONS SELECT A LOCATION The transmitter is usually located near the sound system amplifier or mixer for easy access to an audio output signal. Position the transmitter on a level surface. It should be free from metallic objects that might interfere with the antenna signal. For permanent installation, the PPA T35 transmitter can be rack mounted. Use the Williams Sound RPK 005 or RPK 006 rack mount kits.
WIRING AND CONNECTIONS FIG. 5: REAR VIEW þ OF T35 POWER SUPPLY CONNECTION FOR U.S. APPLICATION Connect the TFP 016 power supply to the “Power In” jack located on the rear of the T35 transmitter. NOTE: The power on the T35 will not be activated until the power button on the front of the T35 is pressed into the “on” position.
FIG. 6: AUDIO SOURCE CONNECTORS In Phase In Phase From Microphone 1 2 1 In Phase 3 Pin Connector Low Impedance Microphone 2 3 3 3 Pin Connector Balanced Line Using 3–Pin Connector Balanced Line Using 1/4' Connector 4.7 K 1 3 Pin Connector Source A 2 3 Unbalanced Line Using 3–Pin Connector Source B Unbalanced Line Using 1/4" Connector 4.
AVOIDING HUM IN THE AUDIO (AS A RESULT OF A GROUND LOOP) A hum created by a ground loop can often be eliminated by connecting a capacitor in series with the audio line shield to the transmitter’s ground. This method also maintains good RF shielding. Determining the effectiveness of this method for your installation usually requires some experimentation. See Figure 7. FIG. 7: CONNECTING TO A BALANCE/UNBALANCED LINE In Phase 1 2 3 .01 uF Ceramic Disc Capacitor .
CONTROLS & FEATURES FIG. 9: PPA T35 FRONT VIEW ^ Digital Frequency Synthesized -3 Audio Level -6 – ^ -9 On Air Power Volume -12 -15 -18 Power Button Source + - 0 Input Overload - +3 + +6 + +9 Set PPA T35 Direct Access Buttons LCD Menu Display Menu Control Buttons Phones Direct Access Buttons POWER BUTTON Push-button switch turns the transmitter on or off. The wall mounted power supply stays on at all times.
PHONES JACK AND SOURCE BUTTON A headset plugged into the “Phones” jack allows monitoring either the audio output as it is processed and transmitted by the T35 or the T35 audio input before it gets processed. By default, the phone jack audio is set for “TRANSMITTED” audio. Pressing and holding down the “Source” button will select “INPUT” audio. The setting is immediately displayed on the LCD menu screen. Releasing the “Source” button will immediately return the selection to “TRANSMITTED” audio.
LCD SCREEN MENUS (QUICK REFERENCE) The first screen (M0) gives important overall system settings. The following nine menu screens (M1-M9) are used to configure and setup the T35. To make a screen selection, navigate to the desired LCD menu by press^ ing the “ ” (down) button on the front of the T35. Press the “Set” button to save the change into memory. Any changes not “set” will be lost. After 30 seconds of inactivity, the LCD will return to the default display.
LCD SCREEN MENUS (DETAILED) APPLICATION PRESETS (M1) The Application Presets screen allows the user to quickly and easily configure the T35 for common applications. In some cases, the Application Presets will be the only setup needed for properly configuring the T35 transmitter. There are three Application Presets to choose from: Hearing Assist, Music and Voice.
BANDWIDTH (M2) The default LCD menu screen (as shown on page 11, Figure 10) will always display the user selected bandwidth as “Wideband” or “Narrowband.” The T35 is shipped from the factory in Wideband mode. First determine the bandwidth of the associated receiver, then set the T35 to that bandwidth: ^ 1) Press the “ ” menu button (Figure 12) to access the LCD “Bandwidth” (M2) screen. 2) Press the “+” or “-” menu buttons to select between Narrowband and Wideband.
AUDIO SOURCE (M4) The Audio Source control menu is used to configure the T35 for a proper audio source connection. The transmitter will accept the following audio sources: 1) 2) 3) 4) 5) Balanced Microphone on a 3-pin (XLR) connector without simplex power. Balanced Microphone with 12 volt simplex power (DIN 45596) on a 3-pin (XLR) connector. Balanced/Unbalanced microphone without power on 1/4 inch jack Balanced/Unbalanced Line on a 3-pin (XLR) connector. Balanced/Unbalanced Line on 1/4 inch jack.
LOW PASS FILTER (M6) The low pass filter will help to remove high frequency “noise” from the transmitted audio signal. This is typically used when there is a hiss is the audio line as a result of room noise, speech sibilants, or other high frequency unpleasantries. To select a Low Pass Filter cutoff frequency: 1) Press the down “ ^ ” menu button (Figure 12) to select the LCD “Low Pass Filter” (M6) screen. 2) Press the “+” menu button to increase the cutoff frequency selection.
FIG. 13: AUDIO PERFORMANCE USING COMPRESSION –18 –15 –12 –9 –6 –3 LEVEL INDICATOR REFERENCE: 0 +3 +6 +9 3.5:1 1.0:1 RATIO NORMAL or REDUCED GAIN IO RAT -10 dB D) E UC O 1 0: TI RA 3.5:1 RATIO REDUCED GAIN D RE ( 3.5:1 RATIO NORMAL GAIN 6. COMPRESSION GAIN: REDUCED ADJUSTMENT RANGE SI O N ) -20 dB -30 dB 1.
RF OUTPUT (M9) The T35 has three selectable transmitter power levels: FULL, MEDIUM, LOW POWER, or OFF AIR. By default the T35 is set to “Full” power mode. For general listening applications, FULL power is the preferred mode of operation. “Full power” provides the T35 with an operating range of up to 500 ft.
RECEIVER SAFETY INFORMATION HEARING SAFETY CAUTION! This product is designed to amplify sounds to a high volume level which could potentially cause hearing damage if used improperly. To protect your hearing and the hearing of others: 1. Make sure the volume is turned down before putting on the earphone or headphone before adjusting the volume to a comfortable level. 2. Set the volume level at the minimum setting that you need to hear. 3.
WIDEBAND FM RECEIVERS (OPTIONAL) RECEIVER MODEL PPA R35 The PPA R35 is a single-channel receiver operating on the 72-76 MHz bandwidth. It features volume on/off control, LED power and low battery indicator, and an earphone jack (see Figure 14). Instructions: FIG. 14 On/Off Volume Switch Earphone Jack "On" Indicator LED R35 Top R35 Front BATTERY INSTALLATION Install two (2) AA alkaline or NiMH rechargeable batteries.
RECEIVER MODEL PPA R35-8 The PPA R35-8 is an eight channel receiver, operating on 72-76 MHz bandwidth. It features a channel selection knob, volume on/off control, LED power and low battery indicator, and an earphone jack (See Figure 15). Instructions: FIG. 15 Headphone Jack "On"/Low Battery Indicator LED Channel Selector Knob On/Off Volume Switch Control R35-8 Top R35-8 Front BATTERY INSTALLATION Install two (2) AA alkaline or NiMH rechargeable batteries.
BELT CLIP INSTALLATION FOR PPA R35 AND PPA R35-8 TO INSTALL: Position the belt clip on the rear of the R-35 and R35-8 receivers as shown in Figure 16a. Turn the belt clip 180º left or right as shown in Figure 16b. The belt clip is now installed and ready for use. TO REMOVE: Turn the belt clip 180º so the edge points toward the top of the unit as shown in figure 16b. Gently pull the belt clip away from the unit to remove.
ADDITIONAL WIDEBAND RECEIVER OPTIONS MODEL PPA R7-4 The R7-4 is a four-channel wide-band receiver, pre-tuned to frequencies 72.1, 72.5, 72.9, and 75.7 MHz*. It features a channel select knob, volume control on/off switch, and an earphone/charging jack. To operate, simply turn the select knob to the desired frequency, and adjust the volume control to a comfortable listening level. FIG.
RECEIVER (WIDEBAND) FREQUENCY CHANGE INSTRUCTIONS Selecting a frequency for the R31, R32, R-35 and R7-4 receivers requires an adjustment to the internal tuning coil(s). See Figure 18 for receiver types to locate the coils to be adjusted. A plastic tuning wrench (PLT 005) will be needed to adjust these receiver tuning coils. FIG.
STEP 6: With the earphone or headphone supplied with the receiver plugged into the Ear Jack, turn the volume control to a comfortable level, and listen for the transmitted signal. STEP 7: Gently put the tip of the tuning tool into the slot in the tuning slug. Be careful not to push hard on the slug so as not to damage the threads in the coil, and do not screw it down more than 3 turns into the coil. STEP 8: Turn the tuning slug in a counter-clockwise direction about two turns.
CONNECTING EARPHONES Plug an earphone into the “Ear” jack on the top of the R19 receiver. Only monophonic earphones will operate properly. If stereo headphones are used, sound will be heard only in one side. A suitable adapter (Radio Shack Part #274-368) can be used so that stereo earphones operate on both sides. OPERATING THE RECEIVER NOTE: If you’re using the PPA T35 transmitter, make sure the transmitter is on and receiving a good audio source.
SUGGESTIONS FOR RECEIVER MANAGEMENT Different types of facilities use varying approaches to receiver management and earphone sanitation. Below are some options that customers have used successfully. 1. Regular users purchase or are given their own receiver and take care of their own batteries and earphones. 2. The facility labels a receiver and earphone for each regular user. The facility maintains the units. 3. Ushers issue receivers to people who request them. Earphones are sanitized after use.
TROUBLE SHOOTING THE T35 “ON AIR” INDICATOR IS NOT ON þ Make sure the transformer (TFP 016) is plugged into the transmitter and any remote power switch is on. þ Make sure the electrical outlet is on. þ Make sure the power button on the front of the T35 is pressed to the “on” position. þ Make sure the 24 VAC power supply is working. þ Make sure the RF output is not set to “OFF AIR.” NO AUDIO HEARD IN PHONES JACK þ Check to see if there is a signal coming from your audio source.
þ Make sure the FM receiver is ON. Make sure the batteries are properly installed (observing proper polarity). If the batteries are rechargeable, it may be necessary to charge the batteries overnight. þ Make sure the FM receiver is operating on the same frequency as the T35. Make sure the receiver is operating on the same bandwidth as the T35: Wideband or Narrowband. Follow tuning instruction for the receiver and adjust accordingly.
BUZZ IN OTHER EQUIPMENT WHEN TRANSMITTER IS ON OR OFF þ This is not an RF problem. Instead, it is likely caused by incorrect audio connections, a ground loop, or defective equipment. To remedy, use proper audio wiring practice to make connections described on page 8. BUZZ OR OTHER NOISE IN EQUIPMENT ONLY WHEN TRANSMITTER IS ON þ This is likely an RF–induced disturbance in the other equipment. To remedy, try these steps in order until the buzz is eliminated: 1.
LIMITED WARRANTY Williams Sound products are engineered, designed, and manufactured under carefully controlled conditions to provide you with many years of reliable service. Williams Sound warrants the Personal PA™ Transmitter against defects in materials and workmanship for FIVE (5) years. During the first five years from the purchase date, we will promptly repair or replace the Personal PA™ Transmitter.
SYSTEM SPECIFICATIONS Personal PA T35 Transmitter Dimensions, Weight: Color: Rack Mount: Power: FCC ID: Temperature Range: Operating Freqs: Frequency Accuracy: Deviation: Pre-Emphasis: RF Field Strength: Note: Nominal Range: Audio Proc.
Personal PA Receiver Model R35 Dimensions: Weight: Color: Battery Type: Current Consumption: FCC ID: Industry Canada Cert.: Operating Freq.: Intermediate Freq.: FM Deviation: De-Emphasis: AFC Range: Sensitivity: Input Overload: Frequency Response: Signal-to-Noise Ratio: Receive Antenna: Audio Output: Output Connector: Earphone: Notes: Warranty: 4.1" L x 2.85" W x 1.2" H (104.1 mm x 72.4 mm x 30.4 mm) 4.5 oz (127 g) Gray Two (2) AA non-rechargeable alkaline batteries (BAT 001), approx. 100 hrs.
Personal PA R7-4 Wideband Receiver Dimensions: Weight: Color: Battery Type: Battery Drain: Battery Life: FCC ID: Operating Freq.: Intermediate Freq.: FM Deviation: De-Emphasis: AFC Range: Sensitivity: Input Overload: Squelch: Frequency Response: Signal-to-Noise Ratio: Receive Antenna: Audio Output: Output Connector: Earphone: Channel Selector: Warranty: 3-5/8" L x 2-3/8" W x 7/8" H (92.1 mm x 60.3 mm x 22.2 mm) 3.
Personal PA Receiver Models R19 and R19-6 Model PPA R19: 2-Channel, Pre-Tuned, Selectable CH 36 (72.9 MHz), CH 66 (75.7 MHz) standard 10 Channels Available (72.1-75.9 MHz) Model PPA R19–6: 6-Channel, Pre-Tuned, Selectable CH 4 (72.1 MHz), CH 20 (72.5 MHz), CH 36 (72.9 MHz), CH 66 (75.7 MHz) CH 43 (74.7 MHz), CH 50 (75.3 MHz) 3-5/8" L x 2-3/8" W x 7/8" H (92.1 mm x 60.3 mm x 22.2 mm) 3.
Williams Sound Corp. 10321 West 70th St., Eden Prairie, MN 55344 U.S.A. 800-843-3544 / 952-943-2252 / FAX: 952-943-2174 MAN 110G ©2005 Williams Sound Corp.
