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.
1
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.
3
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..
4
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.
5
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.
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.
7
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
Ω
Ω
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
E-mail: [email protected]
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