Pioneer CT-F700 User manual

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CASSETTE
TAPE DECK
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MODEL
CT-F7OO
COMESIN FIVEVERSIONS
DISTINGUISHED
AS FOLLOWS:
a
aThis
service
manual
isapplicable
to the CT-F7OO1D,
DlG.
]+:r9^t;iJ,î01:,'',rt-:-1':" manuar
is issued
"rlpp""aix. For
further
detairs
about
the
cr-F700/KU and KG,.refer
to the supprement.ry,n.i"rr"r
on page
6r. tarrs
aDout
the
PË:tîtfftairs' an'd
ordering
of sparep"rt , t"t" speciat
noteof the type (i.e.
cr-F70olD, DlG, 1
1.
2.
3.
4.
5.
6.
3
4
6
I
11
13
15
16
16
17
19
20
21
21
21
21
22
23
8.5 Recording
Current
8.6 Recording
Bias
8.7 Recording/playback
Frequency
Response
. .
8.8 Recording
Level
.
9. PACKING
10.
EXPLODED
VIEWS
10.1 Exrerior
1O.2 Mechariism
Assembly
(Front
Side)
10.3 Mechanism
Assembly
(Rear
Side)
10.4 FrontPanel
10.5 Panel
Stay
10.6 Mother
Assembly
11.
SCHEMATIC
DIAGRAMS,
P.C.
BOARD
PATTERNS
AND PARTS
LIST
11.1 Miscellaneous
parts
List
11.2 Connection
Diagram
11.3 Schematic
Diagram
11.4 Mother
Asserirbly
11.5 Muting
Assembty(RWX-192)
11.6 Dotby
Assembty
(RWX-t9t
)
11.7 Amptifier
Assembly(RWF_084)
11.8 Control
Assembly
(RWG_O85)
11.9 Meter
Amptifier
Assembty
(RWX-lg5l . . . .
1
1.10 Power
and
Oscillation
Assembly
(RWR_061)
.
. ..
11.11 Connection
Assembly(BWX_196)
26
26
26
26
28
29
31
33
35
36
37
38
39
4l
43
47
49
50
53
56
rE-
_i.
x
25
25
25
26 Additional Service
Manual
58
60
61
Type Voltag€
J
20V only
120V
onty Canada
model
Europe or Oceania
model
KU
KC
HG 22OV and24OV (switchable)
12OV,22OV
and 240V (Switchabte)
12OV,22OV
and240V (Switchabte)
D
D/G
CONTENTS
SPECIF
ICATIONS
FRONT
PANEL
FACILITIES
DISASSEMBLY
PARTS
LOCATION
. .
LEVEL
DIAGRAM
CIRCUIT
DESCRIPTIONS
6.1 Recording
and
playback
Circuit
6.2 DolbyProcessor
6.3 Oscillator
Circuit
6.4 Muting
Circuit
6.5 Control
Circuit
6.6 Meter
Circuit
7. MECHANICAL
ADJUSTMENTS
7.1 Pinch
Roller
pressure
7.2 Reel
Turntable
Torque
7.3 Tape
Speed
7.4 pause
Timing
7.5 Motor
Switch
and
play
Timing
7.6 Muting
Switch
Operation
7.7 Wow
andFlutter
8. ELECTRICAL
ADJUSTMENTS
8.1 HeadAzimuth....
8.2 playback
Equalizer
8.3 playback
Level
9.4 Level
Meter
and
D.L.
Meter
.

q
l-
{'
I
1. SPECIFICATIONS
Systems Compactcass€tte,2-channel
stereo
Motor Electronically-controlled
DC motor
{built-inSenerator)
x I
Heads "Ferrite Solid" recordinS/playback
Signal-to-Noise
Ratio
head
x 'l
Ferriteerasing
head
x 1
Approximately 85 seconds (C-60
tape)
No more than
o.o5%
(wRMS)
No more than
10.17%
(DlN)
Standard,LH tapes:25
to 15,000H2
(30 to 14,000H2 t3dB), (40 to
13,000H2DIN)
Ferrichrome
tape: 25 to 17,000H2
(30 to 16,000H2
+3dB)
Chromium dioxide tape: 25 to
17,000H2
(30 to 16,000H2t3dB),
(40
to 14,000H2DIN)
Dolby
NR OFF: Morethan
54dB
Oolby
NR ON: More
than64dB
(over
5kHz,
standard,
LH tapes)
(When chromium dioxide tape is
used,signal-to-noise
ratio is further
improved
by 4.5d8 over5kHz)
Morethan58dB
(DlNl
Harmonic
Distortion. No morethan
1.5%
(0dB)
Inputs
(Sensitivity
lMaxi
mum allowableinput/lmpedance)
MIC (L, R); 0.3mmV/l00mV/10 kilohms,
6mm diam'
jacks(Reference
MICimpedance;
25Oohmsto l0kilohms)
LIN
E (2-channel
stereo)
;
64mV/25Vll
00 kilohms
REC/PLAY
x 1
;
lnput& output,
l4mV/4.5V/l.8 kilohms
5p
iack
(OlN standard)
Outputs(Reference
level/Maximum
level/Load
impedance)
Ll
NE (2-channel stereo);
450mV/7
I
0mV/50
kilohms
REC/PLAY x l; 450mV/7l0mV/50 kilohms 5p iack
(DlN standard)
Headphones
x l; 60mV/l00mV/8 ohms,6mm
diam.
iack
5em
iconductors
Amplifier Section
Motor controlsection
Subfunctions
. Meter
f Dynamic
levelmeter:
for recordingl
I Bi"r rn.t"tt for recording I
t Peak
meter:
for Playback )
o
Biasadiustment
systcm
e
Input
selector
(LINE/MlC'DlN)
. Memorystop
(ON/OFF)
r Dolby system
(ONOFF) with indicator
lamp
. Tape Selector(STD/FeCrlCrOr )
Automatic tape selector
for CrOr tape' and Manualtape
selector
of independently
BIAS/EQ
o
Cassette
compartment
illumination
Power
Requirements
. . . AC l2OV, 22OV, 24OV (switchable)
50l6OHz
Transistors x 35 lCs x 4
Diodes
x 51
Transistors
x 3,Diodes
x I
2l watts
a20(w)
x 187(H)
x 304(D)mm
Max.
16-9116
x 7-318
x l2 in
8.5ke
(18
lb l2oz)
l0.2kr
(22|b
8oz)
cT-F7c',C,
Furnished
parts Stereo connecting cord with pin
plugs
x 2
HeadcleaninS
kit x 1
Fuse
(120V; lA or 220,240V 500mA)
Operating
instructionx I
NOTE:
Specificdtioru ond the design .ubiect to Po.tlble modificdaion
uithout notice due to improuement..
NOTES:
l. ReferenceTaoes:
Standard
& LH: DIN 45513/BLATT6 or
eoulv.
: CrOr: DIN
45513/BLATTT
(CrO')or
equiv.
2. Reference
RecordingLevel: Meter 0dB indicating
level(160
nwb/m magnetic
level
= Philips
cassette
reference
level)
3. ReferenceSignal:333H2
4. Wow & Flutter: o J15 [3kHz, with acoustic
compensation
(weighted),
rms valuel o DIN [3150H2,
with acoustic com-
pensation
(weighted)
PEAK
valuel;DIN 45507
5. Frequency Response: o Measured
at -20d8 level, DOLBY
NR OFF, level
deviationis
i6dB without indication
o DIN is
DtN 45500
6. Signal-1o-Noise
Ratio: r Measured
at +4dB level
(250nwb/m
magnetic fevet = DIN 45513 specifiedreference
level), IEC A
curve with acoustic
compensation
(weighted) o DIN is DIN
45500
7. Sensitivity:Input level
(mV) required
for reference
recording
level
with input (REC)controlsset
to maximum.
8. Maximum Allowable lnput: While decreasings€ttings
of ingut
(REC) levelcontrols and increasinS
level
at input iacks,
thisis
the maximum input level(mV) at the point whererecordinS
amplifier
output waveform
becomes
clipped.
Reference
Output Level: Playbackoutput level
when meter
indicates
0dB.
Maximum Output Level:
Playback
output level
with respectto
reference recording level when output (PLAY) level controls
are
setto maximum.
Unit:
mm
420(w)
x 187(Hl
x3ût(Dl mm
Max.
Fast
WindingTime
Wow
andFlutter
Frequency
Response.
Power
ConsumPtion
Dimensions
Weight .
t0.

3. DISASSEM
BLY
Exterior Parts
1. Remove screltrs
Q thru @, and remove the
bonnet.
2. Remove knobs A and B, remove screws@ thru
@ fastening the front panel to the chassis,
and
remove the front panel. Be sureto unhook the
door spring from the adjusting
hole; otherwise'
the front panel cannot be separated from the
chassis.
3. Remove screws @ thru @, and remove the
bottom plate.
Disassemblyofexterior
parts
Front
panel

2. FRONTPANEL
FACILITIES
R SWITCH
The power
comeson when the POIVER switch
is
depressed
The
levelmeters
andtheremainingtape
display
liShtwill then light up.
To turn off the power,
releasethe
switch
by depressingit again.
TTEDOOR
OPEN
BUTTON
Depressthis
button to openthe cassettedoor To close
thedoor,
Press
it lightlyand
close.
CASSETTE
DOOR
Alrvays keep this door closed
to prevent dirt and dust from
adhcringto theheads€ction
androtating
parts.
OPERATING
REC bvcr: To
together.
LEVERS
This lever will not work when a cass€tteisnot loaded or when the
erasure
prev€ntion tabs of a loaded cassette
have been broken off.
Ravind hvor ( *rl l: Depress this lever to rewind the tape (the
tape will travel from right to left at high speed).
Plry læer I ) ): Depress this lever when playing back a tape.
Depressit together with th€ REC leverfor recording (the tape will
travelfrom left to right).
Siop lever (ll: When this lever is depressed during tape play,
the operating leversin use will be releas€dand the tap€ will stop.
Frst forwsrd lever ( }} ): Depress this lever to send the tape
forward at top speed
(the tape will travcl from left to right).
PAUSE hvrr: Depress this le\€r to stop th€ tape temporarily
during recording or playback. When it is released,the tape will
continu€ to travel as before. This lever is also deDressed for un-
attended recording wh€n thc casJ€tre
deck is being used togethcr
with a timer.
NOTESI
I. Apdrt frcm the pby ond REC leuera. Do not depress ony of
the leverc simuataneoul!.
2. The opemtinl teuen witl ^ot return to their originol po.itioB
euen when the pouer iscuitched QFF.
record,depressthis lever and thc play lever
DYNAMICLEVEL/BIAS
METER
Dynrmh l.y.l m.te?: When setling the recording level, you will be
able to record any program source at the c.orrect recordint levcl
if you edjust this meter s that the pointer does not deflcct morc
than +6dB with rcspect to a peak siSnalof the proSram source
even if the level meter pointcr defl€cts up to +3d8.
This meter servesat a peak metcr during playback
8iæ metor: Use this meter to adiust thc bias in accordance with
the characteristicsof the tÀpe beinS us€d. Meter indication is in
percent.
LEVELMETERS
Theseindicatethe input levelduringrecordingand the output
level
during
playback.
PHONES
fACK
This is the output iack for stereo
headphones.
Us€it when
you
wantto monitorthe
quality
of a recordingor if youwant
to listen
to atape
priYately.
lvoîES..
. Uselou-impedonce heodphonet I1 you uæ o hilhJmpedance
model,
you uill not be
qbte
to obtoin tufficient wtume.
. you con domage the micrcphone if you plug it into the
PHONES
jochmittohenly,
Mrc
,AcKs
These
are
the inputjacks
for microphone
recording.
Plut thc left
channel microphone into L and thc righr channel microphone
intoR.
TPUTLEVEL
CONTROLS
Use them to ad,ust the output signal level during playback.
Turning the control to the right incr€as€s the levcl. The cont(ols
are coupled when turned but it is also possible
to adiurt th€ right
channel (rear) and left channel (front) independently.
INPUTLEVEL
CONTROLS
Usethem to adiustthe input signal from the MIC iacks
andthe
rear
panel
INPUT
lacks,
andDIN connector
Turning the control to the right increases
the level.
The controls
arecoupled
to the left andright
channelsalthough
you canalso
use
them to adiust
the right channel
(rear)
andth€ l€ft channcl
(front)independently.
I
.\-/f- .r"
n .o1
ô"ô
5€æO C€ÎrC
4

EC
INDICATOR
This light comes
on when the play and REC levers
aredepressed
together to indicate that the cassette
deck is now set to the
recotdinE
mode.
DOLBY
NRINDICATOR
This light comes
on when the DOLBY NR switch issetto ON to
indicate that the cassettedeck is now set up for Dolby recording
or Dolby playback.
CrOzINDICATOR
This light comeson when a chrometape is being used.
lt will
come on when a cassetteisnot loaded
but this does
not indicate
a
failure.
Fe{r INDICATOR
This light comeson when the EQ switch issetto Fe{r.
METER
SELECTOR
SWITCH
Set thisswitch to DYNAMIC LEVEL when
you wanr
to make
use
of the dynamic level
meter,and to BIAS when you want to use
thebiasmeter.
BIASCONTROL
Use
this control to àdiustthe biasin accordancewith thecharac.
teristicsof the tape beingused.lt issetsothat the centerposition
(center
click)
correspondsto thestandard
bias.
EQSWTTCH
Use this switch to sclectthc recordingand playback equalization
characteristicsin accordance with the tygeof tapebeingused.
STD: For ordinary tapesand low-noise/highoutput rapes.
FeCr'. For ferrichrome tapes.
NOTE:
Therc b no need to opemte thilrlaitch ûfyou are usinga chrome
aape slnce the bi.rt ond equorlzer orc tetected, outomaticatly by
the bui t.in mechonhmc, Mohe aure tt'Æ,t
lour chrome tape has
d'etectbn hobt, The chrome tspe d.tector uill not worh uith
chtome topet uhich are not equipped wlth these detectton
hobe, and a thb type of tape connot be uæd.
GT-F7OO
TAPE
COUNTER
Thisindicates
theposition
of thetape
run.
TERRESET
BUTTON
Depressthis button to reset
the tepe counterdisplay to ,000'
MEMORY
STOP
SWITCH
When this switch is depressed
to the ON position, the position
the tepe counter is s€t to'000'is memorized
during recording
and playback,
and the tape
canbe stoppedwith this memory.
DOLBY
NR
SWITCH
Set this switch to ON for recording with the built.in Dolby noisc
reduction system and for the playback of tapeswhich havebeen
Dolby-recorded.
INPUT
SELECTOR
SWITCH
Usethis switch to selectthe program sourcewhich you intend to
record.
LINE: Set to this position for recording a program source
which isconnectedto the rearpanel
INPUT jacks.
Set to this position lor rccording signalsfrom a micro-
phone which is connected to the MIC iack or rear
panel
DIN connector,
NOTE:
I1 mlcrophones are connected to front pone,MIC iachc,a.ource
connectedto DIN connector connotbe recorded
+ Dolby and [Tl aretrademarks
of Dolby Laboratories.
h
o
,,. ,Æ [Ec*
cl.fru
@t0-il@
&cÙ CO 1r$b
o

5. LEVELDIAGRAM
PLAYBACK
FLAÏ AMPI
Goin
32dB
FLAT
AMP
2HIADPHONES
AMP
Sz REC
--------o
OUÏPUT
VR
, ,
-5dBv
i (0
56v)
VR
Loss
53d8
LINE
OUT
25d8v
(t33v)
0dBv= lV
Frequency
, 333
Hz
-7.7
dgv
(04rv)
RL=
æ
-4
d8v
(0 63vl
RL:8N
-23
dBu
l707nvl
@
E
J
U
U
J
a
a
ô';;r LrNE,ouT
-l
3dBv
(0 22v
I
i
-3Z3d8v -43dBv
(t3
6mv; (7tmv)
-33
TdBv
l207nv
-77
3
dBu
(
0
t36
mV)

RECORDING
FLAT
AMP
1
-lldBv
(
0.28v
)
OOLBY
NR
i-7.7
dBv
t(0.4
tv
)
RECAMP
FLAT
AMP
2
|
-5d8v
i
(
0.56v
)
{ nrc
reao
HEAOPHONES
AMP
LINE
_
Mrc Ër
t'
I
2.5dBv
(
r.34V
Goin
7.5dB
Goin
8dB LINEOUT
-7
dBu
(
0.45v
)
; -20
cE)
E
J
U
4
J
RL=
8O
-23
dBv
(70.7mv)
-
33.7
dBv
(
2O.7nY
)
- 43dBv
(z.tmv)
0dBv
= lV
Frequency
: 333 Hz
-31
ZdBv
( 27,5nVI
-35.5d8v
( 16.8
mV)
-365dBv
( 14.9mV)

4. PARTS
LOCATIONS
Front Panel
View
Front
panel
assembly
RXX-221
Knob
(METER,
BIAS,
RAA.2O9
Level
meterassembly p
RAW.O74
Level
meter
assembly
RAW-O7O
RAA.2O7
EQ,
DOLBY
NR,
INPUT}
Button
A
RNK.332
Variable
resistor
(
I
NPUT)
RCV-045
Variable
resistor
(OUTPUT)
RCV.046
Jack
assembly
RKN.O4O
Rotary
switch
(DOLBY
NR)
RSB-018
RNK.335
Button A
RNK-332
Button B
RNK-333
Button C
RNK-334
Front View with Front panel
Removed
Lamp
assembl
B
E
L.056
Cassette
plate
RAH.O2O
Rotary
swi
(METER,
EO,
RSB-017
Erasing
he
RPB-014
PB/REC
he
RPB-032 votume
{glASl
Rcs.o76
Power
cap
RAc.06e ---,-t +
ButtontJ