Creek Audio Stereo System T50 User Manual

Creek T50  
Operating Instructions  
mThank you for purchasing the T50. You are now in possession of a State of the art  
RDS AM/FM tuner. The T50 is a matching tuner for the 50 & 53 series Creek product  
range, although it will work very well with any other manufacturers’ amplifiers.  
The functions and operation of the T50 are deceptively  
simple for the many features that it offers, which can also  
be remotely controlled. The following notes are provided  
to explain all aspects of its design and use.  
T50 FUNCTIONS  
Front panel controls  
1. Tuning / Pre-sets station selection, by rotary control  
knob, is switched by the Mode selector.  
2. Mode selector push button changes the function of  
the rotary control from tuning to pre-set station selec-  
tion and back again.  
3. Band push button selects FM, MW and LW for  
Europe, or FM/AM for North America and countries  
without LW. Custom frequencies and bands for other  
locations are factory set, but Creek dealers can re-  
program them if you have to move to a different zone.  
4. Search Up / Down push button tunes up or down  
automatically, stopping on each usable station and  
rolling over at band ends.  
5. Display push button allows a selection of display  
brightness settings, from off to fully bright.  
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CONNECTING THE T50  
Power supply requirements  
To operate the tuner it is necessary to first connect the unit to the mains supply via the  
power cord supplied. There is an IEC mains connector on the rear panel that contains a  
protection fuse and mains switch. The power must be turned On (1) or Off (0) from here.  
After switching On the tuner will be in Standby and pressing the STANDBY button on the  
front panel will wake it up.  
The power cord should be connected to the tuner and to a domestic mains socket  
carrying 220-240V AC 50Hz or 110-120V AC 60Hz, depending on country of use.  
Should it be necessary to replace the fuse, ensure that you use the same type as  
specified on the rear panel.  
ie: 5 x 20mm cartridge type  
T 500 mA surge resisting for 220-240V 50Hz AC,  
T 1 A surge resisting for 110-120V 60Hz AC  
T 1A surge resisting for 100V (Japan).  
Antenna requirements  
To obtain the best quality FM signal, in stereo with low background noise, it is  
necessary to use a good antenna (aerial), preferably mounted on a roof of a building, or  
in an attic or loft. A 75 ohm co-axial cable should be used to bring the radio signal to  
the tuner. Use a good quality 75 ohm co-ax plug to connect the radio signal into the rear  
panel socket marked: FM antenna 75 ohms. In some parts of the world 300 ohm  
balanced feeder cable is more popular, in which case it should be connected to the 300  
ohm terminals only.  
If it is not possible to use an outdoor aerial, a balanced 300 ohm indoor T-antenna will  
give reasonable results when connected to the 300 ohm terminals. Note that the  
direction of the T-piece with respect to the transmitter site will affect the strength and  
quality of reception, giving more or less noise, especially on stereo signals.  
The AM part of the radio will work very well using a single wire. Pug the 3 metre length  
of thin stranded wire provided into the terminal marked AM on the back panel. Adjust  
its position with respect to the direction of the transmitter to improve reception.  
Output from the tuner  
To connect the audio signal from the tuner to an amplifier it is necessary to use a pair  
of cables terminated with (RCA) phono plugs. Shielded types of interconnect are  
better for reducing hum or other interference pick-up, but unshielded typed like DNM will  
produce a better sonic performance.  
Don’t sacrifice quality for price in this important area.  
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OPERATING THE T50  
Manual and Pre-Set tuner operation  
The large control knob on the right side of the panel has two functions.  
First, it will manually tune the radio up and down smoothly to receive  
stations on FM or AM displaying the frequency, band, centre tuning,  
and  
Tuning  
TIMER  
STEREO  
kHz MHz  
MEMORY  
MW LW  
FM  
AM  
Pre-sets  
RDS station name, if transmitted  
TIMER  
STEREO  
kHz MHz  
MEMORY  
MW LW  
FM  
AM  
The second function is to select Pre-Set stations from the tuner’s  
memory, acting like a rotary switch.  
Tuning  
TIMER  
STEREO  
kHz MHz  
MEMORY  
MW LW  
FM  
AM  
Pre-sets  
The frequency of the station will be displayed for a few seconds and may be  
replaced with the station ID. The Pre-Set channel will only show when the tuner  
is in Pre-Set mode, selected by the MODE button (which toggles between the  
two functions).  
The T50 will remember the last tuned frequency, station ID or pre-set after  
switching off, so it can be restored when switching back on.  
NB. The last tuned station will only be remembered if it has been left unaltered  
for 1 minute before switching off..  
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Band selection  
Two or three wave bands are available by repeatedly pressing the BAND  
button. It will toggle between FM, MW and LW, or between FM and AM,  
depending on the country of use.  
TIMER  
STEREO  
kHz MHz  
MEMORY  
MW  
FM A M  
LW  
Tuning and signal strength indicator  
When tuning across the band the T50 indicates the presence of a station.  
If the station is not quite tuned in, arrows indicate the way the tuning knob  
should be turned to obtain centre tuning and lock.  
Tuning  
TIMER  
STEREO  
kHz MHz  
MEMORY  
MW LW  
FM  
AM  
Pre-sets  
As the station is correctly tuned, the arrows change to a horizontal line.  
TIMER  
STEREO  
kHz MHz  
MEMORY  
MW LW  
FM  
AM  
Search Up and Search Down  
Instead of tuning the radio manually with the tuning knob, SEARCH operation will  
automatically search UP and DOWN the band, looking for stations to be received  
with an acceptable background noise. It will stop on each one until asked to  
continue searching by pressing the UP or DOWN button again.  
Signal Strength  
To indicate the signal level of a given station, the display brightness is adjusted  
from Bright (high) to Dim (low). Use a good quality roof antenna for best results.  
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Store and Pre-sets  
To fill the T50’s memory with your favoured stations, select Manual Tuning  
by pressing the MODE button and select the desired BAND. Either tune  
manually, or use the search UP button to locate the station you wish to  
memorise.  
Tuning  
TIMER  
STEREO  
kHz MHz  
MEMORY  
MW LW  
FM  
AM  
Press the STORE button once, briefly. The MEMORY indicator on the  
display will flash and the PRE-SET number will be displayed. If you wish  
to store the station in this address, press the STORE button firmly and hold  
until the MEMORY indicator stops flashing.  
Pre-sets  
TIMER  
STEREO  
kHz MHz  
MEMORY  
MW LW  
FM  
AM  
If you prefer to allocate the station a different pre-set number (1-29), turn the  
tuning knob until the PRE-SET indicator displays the desired number and then  
press the STORE button as above. The T50 will now be ready to store  
another station and will attempt to place it in the next consecutive pre-set  
number address, should you wish to do so. Repeat as necessary to store  
your favoured stations in the memory. Return to standard operation by  
pressing the MODE button again.  
NB. A maximum of 99 stations can be stored in FM, 29 in MW/AM and 6 in  
LW (Europe only).  
Clear Station Memory  
Individual stations can be over-written by selecting the pre-set number with the  
TUNING/PRE-SET knob. In order to clear all pre-sets to start again, press and hold  
the MODE button until ‘CLEAR’ starts flashing. Then, release and press and hold  
the MODE button once more until CLEAR becomes solid. Releasing the MODE  
button will blank the display temporarily and clear the memory of all pre-sets.  
Note: Any other button press or control knob turn or waiting more than 10 seconds  
whilst CLEAR is flashing will cancel the pending program action.  
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Display  
The T50 can have four levels of display brightness. The levels are set by pushing the  
Display button repeatedly until the desired level is found.  
The available levels of brightness are:  
1. High (Default)  
2. Medium  
3. Low  
4. Off  
The display levels are held in the memory of the T50 and will be remembered if the  
tuner is powered off.  
If the tuner is working but there is no display, it could be that the display brightness  
level has been switched to off.  
If any button or the tuning knob is turned, the brightness level will be briefly restored  
to setting no.1 and will then revert to the last setting. Remote control is not available  
for this function.  
REMOTE CONTROL OPERATION  
Nearly every function of the tuner is available via the SRC1 Creek system  
remote control handset provided with the T50 tuner, with the exception of  
continuous Tuning & Display, which are only available from the front panel.  
The six green buttons in the lower section of the handset are dedicated  
tuner controls. The functions these buttons provide are:  
Store  
Band Selection  
Mode  
Up  
Down  
Mute  
Volume is controlled via the volume up/volume down buttons in the centre  
of the handset.  
The numeric keys in the top section of the handset are for use only with CD  
players and do not apply to the tuner.  
The TUNER button is an amplifier input selector and is only used to listen  
to the tuner output, like CD or AV. It is not necessary to press TUNER to be  
able to control the tuner, only the green buttons should be used.  
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CREEK T50 SPECIFICATION  
WAVE BANDS  
Worldwide  
FM  
FM  
87- 108 MHz  
76 - 90 MHz  
Japan  
Europe  
USA  
MW/AM 522 - 1611 kHz  
AM  
530 - 1710 kHz  
144 - 288 kHz  
Europe Only LW  
FREQUENCY INCREMENTS  
50 KHz FM 9 kHz AM (10kHz for America)  
199 kHz auto 200 kHz USA  
µ
µ
SENSITIVITY (IHF 50dB)  
SELECTIVITY (IHF)  
< 20 V mono, < 100 V FM stereo  
> 70 dB ± 0.4 MHz FM  
> 60 dB ± 15 kHz AM  
NUMBER OF PRE-SETS  
99-FM  
6-LW  
29-AM/FM  
FREQUENCY RESPONSE FM ONLY  
TOTAL HARMONIC DISTORTION  
20 Hz to 16 kHz -1 dB  
< 0.3% (FM), < 3% (AM)  
> 30 dB  
STEREO SEPARATION  
FM only  
SIGNAL TO NOISE FM only  
OUTPUT VOLTAGE  
> 69 dB (full limiting)  
500 mV RMS for 50 kHz deviation  
AERIAL CONNECTIONS  
POWER CONSUMPTION MAX  
POWER SUPPLY VOLTGE  
300  
7 VA  
and 75  
co-ax  
220/240 V AC 50 Hz UK, Europe & Asia  
100/120 V AC 60 Hz  
REMOTE CONTROL PROTOCOL  
RC5 (Philips)  
SIZE  
43 X 6 X 25 cm 17 x 2.4 x 10”  
4 Kg - 9 lbs  
WEIGHT  
MAINS VOLTAGE AND FREQUENCY IS INTERNALLY SET FOR THE COUNTRY OF USE  
Creek Audio Ltd reserves the right to change or modify the specification of its products without prior warning.  
Designed and made in the UK.  
Creek Audio Ltd.  
12 Avebury Court, Mark Road, Hemel Hempstead, HP2 7TA, England  
Tel:  
+44 (0) 1442 260146  
Fax: +44 (0) 1442 243766  
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