Yamaha | CT-600 | Owner's Manual | Yamaha CT-600 Owner's manual

Yamaha CT-600 Owner's manual
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CONTENTS
PRECAUTIONS O OO ess eccncn sec cccc eV cd VANVANE EN
OTHER EQUIPMENT: CONNECTION AND OPERATION
AM Antenna Connection.…......................…….…rrerirererrrirrrersscessenveccecaresennnes aassressensre ere nee rene NEG
AM Broadcast Reception ….……..……..….…eresenenmmnnennennnnnnnnnnnnnnennnnnnnn=tnnnnnnsnnnnnnnne
FM Antenna Connection ..............................eee.iiriiericer e ere ee eee erre e Deere
FM Broadcast Reception ...........................eeeee.irieereeinereeercen e ee ee Ree anna cence
FM Stereo Notes................. eneoronenoricacecorecanerrecenrenonanernanereancacereerereceee rre re ER reereneocoterece
Amplifier Connection.......................11....0e..e05emerimmec ene e Dee Der N eee.
Tape Recorder (Deck) Connection ........................6e02e000e00 DDN II RR
Accessories .......................c.cocrcceciceciccire ee recercerecenererenea enema nnem neto cero rterroeneorer nooo ooceononenrecccaee
CONNECTION DIAGRAMS.......................ee011900rericcccc eee Deere e e eee Der nene VEN
FRONT PANEL PARTS AND FUNCTIONS ..................e.....eenercanaaionnaerien nenrteL econ cenar renace.
REAR PANEL PARTS AND FUNCTIONS
Type A Model ......................ecerercaccarcaccoreccanrneeoee enn n een ere on eres estes sess esses banana b baba Ere es
Type B Model ..........................eieaasecacareorcocanvecanteneoarer erre rro onctcocacerrao roer ano eececencarerne recen.
Type C Model .......................eeernecienercrcanereocaninreanerranae erroneo rorecaceooorernao rece nnrrecon er ereraceneee
Type D Model NEE
Type E Model ..........................rcereercaereoorenracaseenenasenaoao reee trece Decor renenconnenercerne nece reorrenecans
EXPLANATIONS OF CONTROLS AND CONNECTIONS
Use of the Multipath Terminals ...............................=1100000000000ieD e e nen ener
TROUBLESHOOTING
BLOCK DIAGRAM
SPECIFICATIONS
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SCHLEIFEN
Au dE RARE EEE EE EURE NAN TEEEU CAFE RERUTE EEE TE PERTE ETAT ETUI EEE VER GTREEUAT EE
PLEASE READ THIS FIRST
‘You may seriously damage any transistorized audio
unit by being careless when you first operate it.
Carelessness is the major cause of audio repairs. Avoid
disappointment by following the precautions listed
here BEFORE you attempt to plug in or operate your
CT-600. |
DO'S AND DON'TS
® Do make sure that air can circulate freely above,
under and behind the CT-600.
® Do protect the cabinet finish from insecticides,
paint thinner and other volatile materials.
e Do protect the set from dampness, dust and me-
chanical shocks.
e Dont locate the unit in direct sunlight or near a
source of heat. Heat can damage transis-
tors.
es Dont force knobs or switches.
s Dont plug the CT-600 power cord into an AC
outlet uniess you are sure the power switch
is off.
® Don’t connect any other equipment (amplifier,
tape deck, etc.) unless the power switch is
off.
e Dont turn on the power switch unless you are
sure that the set is connected to an ampli-
fier and the amplifier volume is turned
down to minimum.
If your set has a voltage selector, before you plug in
the power cord check that the selector is set to your
local current.
If not properly set, turn the knob and reset it to the
correct position.
Voltage settings: 110, 130, 220, 240V (the 150,
260V settings are not connected).
Voltage Selector
OTHER EQUIPMENT: CONNECTION AND OPERATION
A first-quality AM ferrite bar antenna is built into the
rear panel. Beginning AM reception should be done
using this antenna only; tune in a strong station and
then swing out the bar while watching the signal meter
to find the best angle (see Fig. 1).
Inside a ferroconcrete building or in a weak signal area
where this antenna alone does not provide sufficient
signal strength, an outdoor AM antenna must be in-
stalled. Connect it to the AM antenna terminal and set
it up as shown in Fig. 2. Be sure to ground the set
with the ground terminal next to the AM terminal
at this time.
Set the Function selector to AM and tune across the
dial for the desired station. As you approach the
station watch the signal meter for maximum deflec-
tion to the right (the tuning meter does not function
for AM). Tuning to this point will provide the best
reception.
AM ANTENNA
SIGNAL METER
Fig. 1
TYPE E MODEL
pr AM ANT
X
7
VA ВЕРИЛ
Fig. 2
A T-shaped FM ribbon antenna is included among the
accessories. Use it in strong signal areas (near the FM
broadcast stations). For optimum FM (and especially
FM stereo) reception install a special outdoor FM
antenna.
There are two types of FM antenna terminals on the
‚ СТ-600: 300% and 752.
To use the ribbon antenna, connect to the 3009
terminals as shown in Fig. 3. Tack the antenna up on
a wall while watching the signal meter for maximum
needie deflection as you try different antenna loca-
tions (see Fig, 4).
If you use an outdoor antenna, select a location as
far as possible from sources of interference (motor-
cycle ignition noise, etc.). Between the antenna and
the CT-600 use a coaxial cable with a thickness up to
C2V. Connect to one of the 75{) terminals. If the
cable has a connector on the end, use the threaded
connector terminal (on the far right side of the
antenna terminal panel). If there is no connector,
strip the end of the cable so that the core lead can be
connected to the terminal, with the outer shield
sheathing bared to make contact as the cable is
installed under the clamp. Use the 752 terminal with
the clamp (see Fig. 5).
In some cases the outdoor antenna will require a
matching transformer (30092 : 7582), while some
antenna do not; be sure to carefully read the antenna
owner's manual. 1f you cannot use a coaxial cable for
the antenna, but must use a regular feeder line (like
that for television antennas), connect it directly to
the 300€? terrninals.
FA ANT ==
J L
3008 BAL 759 LNBAL 756 LNSAL
© ©
Fig. 3
Fig. 4
COAXIAL CABLE
090
COAXIAL
CABLE TYPE E MODEL
COAXIAL
CABLE
p AM ANT
SN
Fig.5
Set the Function selector to FM Auto and tune to
the desired station. As with AM listening, watch the
signal meter for maximum deflect on, but final
tuning should then be done by watching the tuning
meter so that its needle is centered (see Fig. 6).
If there is a great deal of noise between stations
it can be reduced while tuning by switching on the
Muting switch. In weak signal area, however, there
is a danger that the muting effect will also cut out
particularly feeble signals. For this reason, do not
use it when tuning in a weak station, or in a weak
sighal area. When it is used, however, be sure to
reset to OFF the Muting switch once the station is
tuned in.
TUNING
SIGNAL
\ $
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20 4g 60 so | sn
Fig. 6
e FM STEREO NOTES
When a stereo broadcast is received, the stereo
indicator lamp lights up and the set automatically
functions in stereo.
If the lamp flickers or goes out altogether, it indicates
that the signal is too weak for sufficient stereo chan-
nel separation. In this case switch the Function
selector to FM Mono. The stereo effect will be can-
celled, but the signal will become noticeably clearer
(see Fig. 7).
If this problem occurs with the ribbon antenna, it may
be cured by installing an outdoor antenna.
FUNCTION
r= FM — AUTO
Fig. 7
® AFC
When you touch the tuning knob a special Yamaha
~ circuit goes into operation shutting off the AFC (its
indicator lamp dims). Then, once the station is tuned
in and you release the knob, the AFC automatically
comes back on (and so does the lamp) to lock onto
the station for drift-free reception (see Fig. 8).
FM STEREO e
AFC/STATION 26;
POWER e
Fig. 8
Connect the CT-600 to a pre-amp or pre-main amp.
Use the connector cords included among the acces-
sories to connect the Variable Output jacks on the
CT-600 rear panel to the amplifier Tuner or Aux
input jacks {see Fig. 9). Be sure to connect left to
left and right to right.
CT-600 PREAMP or
REAR PANEL | | PRE-MAIN AMP
REAR PANEL
INPUT
AUX-2 AUX-1 TUNER
porwr OUTPUT mem
AXED VARIABLE
TYPE E MODEL
Fig. 9
The CT-600 can be connected directly to a tape
recorder or deck for recording. In this case connect
the CT-600 Fixed Output jacks to the tape deck or
recorder input jacks, being careful not to mistake left
and right channels (see Fig. 10)
Note: In this case the output level cannot be con-
trolled; adjust the recording level with the
recorder input controls.
® Service Pads
Use the service pads to protect the upper panel of
the CT-600 when another unit is placed on it.
Peel off the tape and stick a pad to each foot of
the other unit before placing it on top of the
CT-600.
® Hexagonal Wrench
Use this wrench to loosen the Function selector if
its settings do not match the markings on the panel
(see Fig. 11).
prom OUTPUT ‚я
AXED VARABLE © |
Fig. 10
TAPE DECK
fini
SERVICE PAD
HEXAGONAL
WRENCH
FUNCTION
tm FM — AUTO
Mm
ONO AM
` /
Fig. 41
CONNECTION DIAGRAMS
e FOR REAR PANEL TYPE A, B, C, D MODELS
R
ANTENNA FM RIBBON ANTENNA OUTDOO
a FM ANTENNA
3000/7750
MATCHING
TRANSFORMER
NS SERIES CT-B00
117 YOLTE 1BWATTS
MH -
NIPPON BAKKE CO, LTD.
HAMAMATSU JAPAN
©
PRIMARY FUSE
AC OUTLET
OSONNEUT SURELY CORO
BEFORE CHANGING ASE
SPEAKER(L) SPEAKER(R)
SEE FIG 13
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SEE FIGA
PRE AMP or
TAPE DECK PRE-MAIN AMP
10
e FOR REAR PANEL TYPE E MODEL
AM ANTENNA FM RIBBON ANTENNA OUTDOOR
FM ANTENNA
3000/75
MATCHING
TRANSFORMER
NS SERES CT-500
110 130220 PAOVOLTE
МАТТЕО БОНЫ
16
HIPPON GAKKI CO, LTD.
HAMAMATSL JAPAN
SPEAKER(L)
SPEAKER(R)
SEE FIGI3
SEE FIGY
PRE AMP or
TAPE DECK PRE-MAIN AMP
FRONT PANEL PARTS AND FUNCTIONS
O DIAL SCALE
Shows the frequency of the incoming signal.
The upper portion is for FM, the lower for AM.
@ DIAL INDICATOR
Moves when the Tuning knob is turned. The
micldle red line indicates the frequency of the
AM or FM setting.
12
© POWER INDICATOR
Lights when the unit is receiving power and the
switch is on.
O FM STEREO INDICATOR
When an FM stereo program is received the set
will automatically switch to stereo performance
and this lamp will light. When a monophonic
station is tuned, the set will play in mono and
this lamp will go out.
© AFC/STATION INDICATOR
During normal reception this lamp is lit. When
a station is being tuned and your hand is on the
tuning knob, the AFC goes off automatically,
and this lamp dims (this permits more precise
tuning}. Then, when you remove your hand the
AFC goes on and the lamp lights (AFC locks on
to the station for drift-free reception) If the
signal is very weak, however, the lamp may fail
to light.
OQ POWER SWITCH
Use it to switch on the CT-600,
& OUTPUT LEVEL CONTROL
Adjusts the level of output signal strength. Af-
fects only the signals passing through connector
cords plugged into the Variable jacks on the rear
panel. This control is ideal for matching the
CT-600 output to those of other units, such as
a tape deck, record player, etc.
O MUTING SWITCH
This switch turns on the muting circuit which
cancels noise between FM stations while tuning
(see p. 19).
©) HIGH BLEND SWITCH
With this switch on, high-frequency noise will be
cut from FM stereo signals. If there is no noise
problem, leave this switch off.
O FUNCTION SELECTOR
This switch lets you select AM or FM reception.
FM Mono: Set to this position only when you
are receiving an FM stereo signal
which contains an intolerable a-
mount of noise. The noise will be
cut somewhat, although the stereo
effect will be lost.
FM Auto: For normal FM listening. In this posi-
tion the set will automatically switch
from mono to stereo mode and back,
according. to the signal received.
AM: For all AM broadcast reception.
@ SIGNAL METER
~ Shows the strength of the AM or FM signal
being received. The farther the needle deflects
to the right, the stronger the signal.
© TUNING METER |
Works for FM only. When the tuning is near the
station, this meter needle deflects to show how
far off, and in which direction, the tuning is.
Tune for exact needle centering.
® TUNING KNOB
13
REAR PANEL PARTS AND FUNCTIONS
e TYPE A MODEL
AM ART a GND
© AM FERRITE BAR ANTENNA
@ АС OUTLET
This outlet is unswitched; in other words it
provides AC power as long as the CT-600 is
plugged in, regardless of the power switch set-
ting. ideal for powering a tape deck or turn-
table.
© POWER CORD
O GROUND TERMINAL
14
1
- NIPPON 60., LTD.
JAPAN
©
PRIMARY AC
OSCONNEUT SUPPLY CORO
BEFORE CHANGING RISE
1.04T 256
@ AM ANTENNA TERMINAL ®
@ FM ANTENNA TERMINALS (30082)
@ FM ANTENNA TERMINALS (752)
O FIXED OUTPUT JACKS
© VARIABLE OUTPUT JACKS ®
@ IF OUT JACK
Use this jack for connecting an FM 4-channel
adaptor.
FM MULTIPATH JACKS
Use these jacks when connecting to an oscillos-
cope, for precise antenna location and other
uses.
PRIMARY FUSE |
Always disconnect the power cord before
checking or replacing the fuse. Replace only
with a fuse of the same specifications.
* TYPE B MODEL
@ AM FERRITE BAR ANTENNA
O VOLTAGE SELECTOR
O AC OUTLET
& POWER CORD
O GROUND TERMINAL
(O AM ANTENNA TERMINAL
@ FM ANTENNA TERMINAL (3008)
TM
©
140 130-
1QWATTS
NIP? ON LTD.
HANAMA JAPAN
15
& FM ANTENNA TERMINAL (750)
© FIXED OUTPUT JACKS
VARIABLE OUTPUT JACKS
O IF OUT JACK
® FM MULTIPATH JACKS
® PRIMARY FUSE
15
e TYPE C MODEL
16
@ АМ FERRITE BAR ANTENNA
O POWER CORD
© GROUND TERMINAL
© AM ANTENNA TERMINAL
© FM ANTENNA TERMINAL (3000)
(@ FM ANTENNA TERMINALS (755)
% YAMAHA
NS SERIES CT
5 "О
240VOLTS 10WATTS
SO-BOHz
NIPPON GAKKI CO., LD.
HAMA
MATSU JAPAN
OQ FIXED OUTPUT JACKS
© VARIABLE OUTPUT JACKS
© IF OUT JACK
© FM MULTIPATH JACKS
O PRIMARY FUSE
e TYPE D MODEL
Ald ANT = END
@ АМ FERRITE BAR ANTENNA
@ VOLTAGE SELECTOR
© POWER CORD
@ GROUND TERMINAL —
@ AM ANTENNA TERMINAL
® FM ANTENNA TERMINALS (300%)
@& YAMAHA
NS SERIES CT-S00
110 1:30: 220: 240VOLTE
10 ATTS S0-60Hz-
MPPON SAKKI 60., LTO.
HAMAMATSU JAPAN
@ FM ANTENNA TERMINALS (7592)
© FIXED OUTPUT JACKS
© VARIABLE OUTPUT JACKS
IF OUT JACK
Q FM MULTIPATH JACKS
® PRIMARY FUSE
17
e TYPE E MODEL
e
AM MN ANT E YAMAH
FI
_ [ rte NS SERIES CT-500
300€ это PDU RAY 110: 130-2290-240VCI.TS
sn ma 'OWATTS SCHBOHz
NIPPON GAKKI CO, LTB.
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AMAMATEL JAPAN
© AM FERRITE BAR ANTENNA @ FM ANTENNA CONNECTOR (75%)
OQ VOLTAGE SELECTOR Q FIXED OUTPUT CONNECTOR
O POWER CORD VARIABLE OUTPUT CONNECTOR
@ GROUND TERMINAL IF OUT CONNECTOR
© АМ АМТЕММА СОММЕСТОВ OQ FM MULTIPATH JACKS
® FM ANTENNA CONNECTOR (300%) @ PRIMARY FUSE
CONTROLS
The signal from the broadcast station enters the CT-
— 600 antenna directly on the one hand, but also after
bouncing off mountains and buildings, on the other.
These reflected signals, coming in from different
angles, are called “multipath,” and because they are
delayed a bit actually interfere with the main signal.
This has a particularly adverse affect upon FM stereo
channel separation (see Fig. 12).
Precision antenna location and aiming can go far
toward reducing multipath reception, especially when
done with the aid of an oscilloscope. In this case, the
oscilloscope should be connected to the special
Multipath terminals provided on the rear panel (see
Fig. 13).
Even if an oscilloscope is not available, more or less
precise antenna direction can be established by con-
necting a tester or level meter to the Multipath Vert
jack and then experimenting with various antenna
positions.
BROADCAST
STATION
SIGNAL
в О ве] © га са OO
2
7]
CT-600
Fig. 12
FM V5"
OSCILLOSCOPE
Fig. 13
19
TROUBLESHOOTING
® If your CT-600 does not seem to be functioning properly, consult the following chart and make the proper checks. if it still does not work right,
contact your Yamaha dealer.
PROBLEM CAUSE CORRECTION
Cord not plugged in. Plug in.
No power when the switch is turned on. Plug not firmly inserted. Push in firmly.
Primary fuse blown.
Replace with fuse or contact serviceman.
Power is on, but no sound.
Improper amplifier connection.
Output level too low.
Improper tuning.
Recheck connections.
Turn up or adjust amplifier volume.
Retune.
No sound from one channel.
Improper connection.
Improper left-right balance setting.
Recheck connections.
Readjust on amplifier
FM Stereo indicator flashes during FM stereo reception.
Improper tuning.
Improper antenna or weak signal.
Retune.
Check antenna connections.
Noise during FM stereo reception.
A clear FM stereo signal can be received only to
within a distance about half that for an FM mono
signal.
Install more powerful antenna.
Listen in mono mode
Replace ribbon antenna with more powerful outdoor typ” ``
Strange hissing or beeping during FM reception.
Interference from auto or motorcycle ignition.
Make sure to connect antenna with a coaxial cable.
Move the antenna farther from the street.
20
BLOCK DIAGRAM
750
O —
y 3000] RF CERAMIC CERAMIC FM
ANT © ; — — IF AMP 4 RATIO MPX O) FIXED
= :
= 3 — ©) VARIABLE
= =
MUTING © 8.
= = OUT PUT
o Laly .
CERAMIC 5 E:
a:
FM AGC À FILTER — F ED и E — — ©) VARIABLE
aß
НЙ
7 3
| SIGNAL TUNING
METER METER
O— AM IF
TUNING
KNOB
AUTO TO [UCH AFC |
AM AGC
© +в
POWER
AFC/ STATION TRANS FORMER
INDICATOR
IF OUT © POWER
SUPPLY | | AC
HORIZ
MULTIPATH
vert ©
21
SPECIFICATIONS
22
6 TUNER SECTION
FM:
Tuning Range 88MHz to 108MHz
Sensitivity
Mono: IHF/DIN (40kHz Deviation S/N 26dB)
2,0UV/1.3UV
Stereo: DIN (40kHz Deviation S/N 46dB DIN #45500)
50H V
Quieting Slope 55dB at SUV
60dB at 1OUV
Limiting Level (-3dB) 1.1uV
image Frequency
Rejection 90dB
iF Rejection 95dB
Spurious Response
Rejection 95dB
AM Rejection B5dB
Capture Ratio 1.5dB
Selectivity
IHF/DIN (300kHz 40kHz Deviation)
75dB/60dB
Signal-to-Noise Ratio
Mono: 75KHz Deviation/DIN (40kHz Deviation)
70dB/64dB
Stereo: 175kHz Deviation/DIN (40kHz Deviation)
66dB/60dB
Total Harmonic Distortion (Antenna Level; 1mV)
Mono: 2400Hz (75kHz Deviation)/DIN (1kHz 40kHz
Deviation)
0.30/0.30%
50 to 10,000Hz/DIN (40kHz Deviation)
0.60/0.60%
Stereo: 400Hz (75kHz Deviation)/DIN (1kHz 40kHz
Deviation)
0.50/0.50%
50 to 10,000Hz/DIN (40kHz Deviation)
2.0/2.0%
Stereo Separation
400Hz (75kHz Deviation) /
DIN (1kHz 40kHz Deviation)
40dB/40dB
50 to 10,000Hz (75kHz Deviation)/
DIN (40kHz Deviation)
28dB/28dB
Frequency Response
50 to 10,000Hz +1.0dB, —1.0dB
20 to 15,000Hz +1.5dB, —3.0dB
Sub-Carrier Suppression 40dB
Muting Over ride Signal
Level 104 V
Stereo Level 10uV
AM:
Tuning Range 525 to 1,605kHz
Sensitivity 52dB/m
Selectivity (at 1,000kHz) 30dB
Signal-to-Noise Ratio
(at 80dB/m) 45dB
image Frequency Rejection
(at 1,000kHz) 70dB
Total Harmonic Distortion
{at 80dB/m) 0.8%
e GENERAL:
Transistors 31
FETs 2
Diodes 20
Zener Diodes Я
1С5 2
Power Source AC 110, 117, 130, 220, 240V, 50/60Hz
Power Consumption 9 Watts
AC Outlets (Unswitched) 1
Dimensions (WxHxD) 436mm (17%”) x 144mm (5%") x 323mm (12%")
Weight 7.5kg (16% 165.)
Specifications subject to change without notice.
SINCE 1887
NIPPON GAKKI CO. LTD. HAMAMATSU, JAPAN
AOM-28| 4105 CT-600 HS. @ J Printed in Japan.
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