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Sharp SYSTEM-CD555ZT(GY) User manual

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SHARP
SERVICEMANUAL
S$3410SYSCD555
SYSTEM-CD555ZT(GY)
COMPACT
IS
¢
Inthe
interests
of
user-safety
the
set
should
be
restored
to
its
original
|
DIGITAL
AUDIO
condition
and
only
parts
identical
to
those
specified
be
used.
TROUBLESHOOTING
(CD
SECTION)
FUNCTION
TABLE
OF
UG
cscs
cissnsecitacd
ansctessiocbaiscespencscahansideece
Rahecdicadae
soa
cucdlies,
Std
te:
EAPEODED
Vi
ssc
eicsscedsiciuceussishovardsceass
satids
ouecconctady
casbuneben.
Soastaslaiaetstac
sess
eosececglocéoscd
i
SHARP
CORPORATION
-SYSTEM-CD555ZT
|
FOR
A
COMPLETE
DESCRIPTION
OF
THE
OPERATION
OF
THIS
UNIT,
PLEASE
REFER
|
i
TO
THE
OPERATION
MANUAL.
@
General
3
Power
source:
Power
consumption:
Output
power:
Output
terminal:
Dimensions:
Weight:
@
Tuner
section
Frequency
range:
@
Tape
deck
section
Frequency
response:
Signal/noise
ratio:
Wow
and
flutter:
Motor:
Bias
system:
Erase
system:
SPECIFICATIONS
AC
220
-
230
V,
50
Hz
DC
12
V[“D’
size
(UM/SUM-1,
R20
or
HP-2)
battery
x
8]
55W
PMPO;
46
W
(23
W
+
23
W)
(AC
operation)
MPO;
14
W(7W+7
W)
(AC
operation)
RMS;
10
W
(5
W
+5
W)
(DC
operation,
10
%
T.H.D.)
Headphones;
16
-
50
ohms
(recommended;
32
ohms)
3.5
mm
(1/8")
socket
CD
out;
0.5
V/10
kohms
RCA
pin
type
Width;
294
mm
(11-9/16"
)
Height;
269
mm
(10-9/16")
Depth;
229
mm
(9")
3.9
kg
(8.6
ibs.)
without
batteries
FM;
64
-
108
MHz
LW;
148.5
-
283.5
MHz
MW;
526.5
-
1,606.5
kHz
SW;
5.95
-
18
MHz
50
-
14,000
Hz
(Normal
tape)
55
dB
(TAPE
1,
playback)
50
dB
(TAPE
2,
recording/playback)
0.25%
(WRMS)
DC
12
V
electric
governor
(1motor)
AC
bias
AC
erase
STRINGING
1.
Turn
the
drum
fully
in
the
direction
®
shown
in
Fig.
2-2
and
Stretch
its
cord
over
the
parts
in
the
numerical
order.
2.
Then
turn
the
tuning
control
shaft
fully
in
the
direction
@
shown
in
Fig.
2-2
and
fix
its
pointer
as
shown
in
Fig.
2-1.
Dial
Pointer
(222)
Figure
2-1
@
Compact
disc
player
section
Dise:
Compact
disc
Signal
readout:
Non-contact,
3-beam
semi-conductor
laser
pickup
Audio
channels:
2
Decoder:
16-bit
linear
quantization
Filter:
4-times
oversampling
16-bit
digital
filter
Frequency
response:
20
-
20,000
Hz
Dynamic
range:
90
dB
Wow
and
flutter:
Unmeasurable
(less
than
0.001%
W.
peak)
@
Speaker
section
Type:
2-way
bass-reflex
type
Speakers:
12
cm
(4-3/4")
free-edge
woofer
x
2
Maximum
input
13W
power:
Dimensions:
Width;
170
mm
(6-5/8”
)
Height;
261
mm
(10-1/4")
Depth;
190
mm
(7-7/16")
Weight:
1.5
kg
(3.3
Ibs.)
/each
poate
;
=]
|
Specifications
for
this
model
are
subject
to
change
without
prior
|
notice.
Sh
Se
ey
See
Pee
eee
a
Ee
oer
OF
DIAL
CORD
Drum
:
|
422mm
|
(223)
Figure
2-2
@
CD
display
section
1.
Piay
Indicator:
p>
2.
Track
Number
Indicator
3.
Random
Indicator
4.
Minutes
and
Seconds
indicator
5.
Memory
Indicator:
M
6.
Pause
Indicator:
11
7.
Programme
Indicator:
P
8.
Repeat
indicator:
<
@
CD
section
§.
CD
Compartment
10.
CD
Eject
Button:
«
11.
Clear
Button
12.
Random
Button
13.
Call
Button
14.
Memory
Button
15.
Stop
Button:
m
16.
Play/Repeat
Button:
»
17.
Track
Up/Cue
Button:
ppi/>p>
18.
Track
Down/Review
Button:
w«/<<
19.
Pause
Button:
11
®@
Amplifier
section
20.
Graphic
Equalizer
Controls
21.
Extra
Bass
Control:
X-BASS
22.
Power/Function
Switch
:23.
Power/TAPE
1
Direction
indicators
24.
Volume
Control
@
Tuner
section
25.
FM
Mode/Tape
Selector
Switch
26.
FM
Stereo
Indicator
27.
Band
Selector
Switch
28.
Tuning
Control
SYSTEM-CD555Z
Tr
Ur
c=K=Te))
(CE
Ceo
S>—-
25
26
27
28
@
Tape
section
1.
Dubbing
Speed
Switch
2.
FM
Mode/Tape
Selector
Switch
3.
Power/TAPE
1
Direction
Indicators
TAPE
2
|
4.
Record
Button:
@
5.
Play
Button:
>
6.
Rewind
Button:
<<
7.
Fast
Forward
Button:
>>
8.
Stop/Eject
Button:
Ba
9.
Pause
Button:
II
TAPE
1
|
10.
Reverse
Mode
Switch:
po/.>
11.
Play
Button:
<>
12.
Fast
Wind
Buttons:
<<>>
13.
Stop/Eject
Button:
mya
14.
Direction
Switch:
«<p>
@
Rear
panel
15.
FM/SW
Telescopic
Rod
Aerial
16.
Left
Speaker
Release
Lever
17.
Beat
Cancel
Switch
18.
Headphones
Socket
19.
Speaker
Terminals
20.
CD
Output
Sockets
21.
Right
Speaker
Release
Lever
22.
AC
Power
Input
Socket
23.
Battery
Compartment
@
Speaker
section
24.
Tweeter
25.
Woofer
26.
Bass
Reflex
Port
27.
Speaker
Wires
(GaananManaenel
456
7
8
91011121314
SYSTEM-CD5552T
SYSTEM-CD555ZT
DISASSEMBLY
——
Caution
on
Disassembly
|
My)
x5
Follow
the
below-mentioned
notes
when
disassembling
the
|
(Al)
x2
3x.G5mm
unit
and
reassembling
it,
to
keep
its
safety
and
excellent
|
$3x
12mm
¢
|
performance:
|
-
1.
Take
cassette
tape
and
compact
disc
out
of
the
unit.
i
:
2.
Be
sure
to
remove
the
power
supply
plug
from
the
wall
outlet
before
starting
to
disassemble
the
unit
and
remove
|
the
batteries
from
the
unit.
3.
Take
off
nylon
bands
or
wire
holders
where
they
need
be
|
removed
when
disassembling
the
unit.
After
servicing
the
|
unit,
be
sure
to
rearrange
the
leads
where
they
were
before
-
disassembling.
|
4.
Take
sufficientcare
on
static
electricity
of
integrated
circuits
|
and
other
circuits
when
servicing.
Rear
Cabinet
(H1)
x14
LCD
PWB
$3
x
10mm
Top
Cabinet
Figure
6-1
REMOVAL
Rear
Cabinet
(G2)x
4
?3
x
10mm
Graphic
EQ.
PWB
sdbeeiauateeetahes
(B1)x4
TID
saitenkteniecsane
(B2)x1
.
Socket
/
Flat
Wire
...(B3)x2
Top
Cabinet
(H2)
x
1
Figure
6-3
Main
PWB
(with
Tuner
Frame)
(F1)
x2
&
(B1)
x2
.
$3
x
10mm
$3
x
12mm
Volume
PWB
Main
PWB
Front
Cabinet
Graphic
EQ.
Front
Cabinet
Figure
6-2
7
fi
0
=
a
B1)x2
O3
x2
Switch
PWB
(B3)
x1
CD
Servo
PWB
:
:
Figure
5-2
CD
Mechanism
‘
Volume
CD
Servo
SPEAKER
PWB
PWB
EMOVAL
Top
Cabinet
Front
Cabinet
Front
Cabinet
(D3)
x1
(D2)
x
4
Sr
(D4)
x7
D1
©
$3
x
10mm
Ga.
tunes
Figure
5-3
REMOVING
AND
REINSTALLING
THE
MAIN
PARTS»
TAPE
MECHANISM
SECTION
Perform
steps
1,
2,
3
and
4
of
the
disassembly
method
to
remove
the
tape
mechanism.
How
to
remove
the
record
/
playback
and
erase
heads
(TAPE
2)
(See
Fig.
7-1.)
.
1.
Remove
the
2
screws
(A1)
to
remove
the
button
frame.
2.
Remove
the
2
screws
(A2)
to
remove
the
record/playback
head.
3.
Remove
the
2
screws
(A3)
to
remove
the
erase
head.
Note:
After
replacing
the
heads
and
performing
the
azimuth
adjustment,
be
sure
to
apply
screwlock.
How
to
remove
the
playback
head(TAPE1)
(See
Fig.
7-2.)
1.
Remove
the
2
screws
(B1)
to
remove
the
button
frame.
2.
Remove
the
2
screws
(B2)
to
remove
the
playback
head.
Note:
1.
The
playback
head
of
this
mechanism
is
supplied
as
finished
product
with
flexible
PWB.
Before
removing
the
flexible
PWB,
remove
the
solder
on
the
switch.
2.
After
replacing
the
head
and
performing
the
azimuth
adjust-
ment,
be
sure
to
apply
screwlock.
How
to
remove
the
pinch
roller(TAPE
2)
(See
Fig.
7-3.)
1.
Carefully
bend
the
pinch
roller
hook
in
the
direction
of
A,
and
remove
the
pinch
roller
(C1)
upwards.
How
to
remove
the
pinch
roller(TAPE1)
(See
Fig.
7-3.)
1.
Remove
the
stop
washer(D1)
with
a
small
precision
screwdriver
and
extract
the
pinch
roller.
2.
To
remove
the
left
pinch
roller,
use
the
same
procedure.
Note:
If
the
stop
washer
is
deformed
or
damaged,
replace
it
with
a
new
one.
(Al)xl
(Ai)x!
i
,
Button
Frame
Erase
Rec/P.B
Head
Head
i!
(A2)x!
S2x7mmM
(A2)xI
“
$2x3mm
(A3)x2
=
se
ae
Lp
Sapes
husk
we
eee:
aS
2a
Erase
Washer
=
Head
Azimuth
—
Flywheel
Spring
Spring
Figure
7-1
Button
(Bidx!
62x9mm
J
822
G2x4.5mm
Fiexibie
PwB
+
|
Flywheel
Figure
7-2
(C1)
Pinch
Roller
Pinch
Roller
~~»
°
°o
~&
(DI)x!
Stop
Washer
Figure
7-3
SYSTEM-CD555ZT
SYSTEM-CD5552T
How
to
remove
the
belt
(See
Fig.
8-1.)
1.
Remove
the
tape
2
main
belt
(E1)
from
the
motor
side.
2.
Remove
the
FF/REW
belt(E2).
3.
Remove
the
tape
1
main
belt
(F1)
from
the
motor
side.
How
to
remove
the
motor
(See
Fig.
8-2.)
1.
Remove
the
2
screw
(J1)
to
remove
the
tape
2
mechanism.
2.
Remove
the
3
screws
(J2)
to
remove
the
motor.
CD
MECHANISM
SECTION
Perform
steps
1,
2, 8,
9
and
10
of
the
disassembly
method
to
remove
the
CD
mechanism.
Removing
the
optical
pickup
(See
Fig.
8-3.)
1.
Remove
4
pawls
(A1)
and
remove
cover
(A2).
2.
Remove
4
screws
(A3)
and
remove
2
shafts
(A4).
(FI)
Main
Belt
Figure
8-1
(J2)x3
K>
Special
Screw
(A3)
x2
$2.6
x
8mm
Figure
8-3
SYSTEM-CD555ZT
ADJUSTMENT
MECHANISM
SECTION
e
Driving
Force
Check
Torque
Meter
Play:
TW-2412
Reverse
play:
TW-2422
Over
60g
e
Torque
Check
Torque
Meter
Specified
Value
Play:
TW-2114
30
to
60
g.cm
30
to
60
g.cm
Fast
forward:
55
to
120
g.cm
55to
120g.cm
TW-2231
Rewind:
TW-2231
55
to
120
g.cm
55
to
120
g.cm
e
Head
Azimuth
MTT-114
e
Tape
Speed
InstrumentConnection
Headphones
Jack
(Load
resistance:
32
ohms)
Test
Tape|
Adjusting
|
Specified
Value
instrument
Point
Connection
Headphones
Jack
(Load
resistance:
32
ohms)
MTT-111
|
VR401
3,000
+
90Hz
TAPE
SECTION
Position
of
each
switch
or
control
Beat
cancel
switch
Graphic
equalizer/X-Bass
Dubbing
speed
e
Bias
Oscillation
Check
Specified
Vaiue
A:
80
+
4
kHz
B:
+4+
1
kHz
forA
C:
+6
+
1
kHz
forA
Beat
cancel
e
Erase
Current
Check
es
Resistor
for
measurement:
1
ohm
e
Playback
Amplifier
Sensitivity
Check
Speaker
Terminal
(Load
resistance:
3
ohms)
Specified
Value
MTT-118
1.0V+3dB
SYSTEM-CD555ZT
TUNER
SECTION
fL:
Low-range
frequency
fH:
High-range
frequency
e
FM
IF/RF
Test
Stage
Specified
Value/
Adjusting
Point
Band
Coverage!
fL:
L2
fH:
TC2
64.0
MHz:
L1
94.0
MHz:
TC1
Instrument
Connection
Input:
Antenna
Output:
Pin
9
of
IC2
\
{
|
4
Tracking
e
VCO
Frequency
Adjusting
instrument
Connection
Point
VR1
38
KHz
+
100
Hz
Specified
Value
Pin
6
of
IC3
\
Adda
resistor(10
kohm)
between
pin
7
of
C3
and
ground,and
adjust
Note:
in
stereo
state.
e
AM
IF/RF
Test
Stage
Specified
Value/
Instrument
Connection
Adjusting
Point
F
LW
Band
fL:
L6
Coverage
fH:
TC6
LW
Tracking
|
170
kHz:
L3(LW)
270
kHz:
TC7
fL:
L5
fH:
TC4
600
kHz:
L3(MW)
1,400
kHz:
TC3
SW
Band
fL:
L7
Coverage
fH:
TC8
SW
Tracking
|
6.5
MHz:
L4
16
MHz:
TC5
Input:
Antenna
Output:
Pin
5
of
IC2
Input:
Antenna
Output:
Pin
9
of
IC2
MW
Band
Coverage
MW
Tracking
SPEAKERS
BEAT
aie
a
CANCEL
Prones
“8
©
3
NALW
Bae
‘ON
'
MES
ao
mA
TRACKING
iF
7
ft
FM
BAND
|
r+
|
COVERAGE
I
13
[tH]
HPS
TT
Tae
ree
ts
2a
r
tt,
LZ
T2
Tai
BAND
=
i5[(@]|@
13
:
i
coverace
[nt
—1-
=
Te45
tc
2
wa
1C2
[fH]
FM
z
C3
Ob
tc;
TRACK
ING
Eee
apm
or
=
R/P_SW
-
[
—s
ee
(Q)"
{Fu
F]
ees
ee
7]
VR401
Lw
SPEED
MAIN
PWB-A1
:
Figure
10
ADJUSTMENT
POINTS
-10=
SYSTEM-CD555ZT
CD
SECTION
"Track
skipping
and/or
no
TDC(Table
Of
Contents)
may
be
caused
by
a
build
up
of
dust
other
foreign
matter
on
the
laser
pickup
lens.
Before
attempting
any
adjustment
make
certain
that
the
lens
is
clean.
If
not,
clean
it
as
mentioned
below.”
1.
Turn
the
power
off.
2.
Gently
clean
the
lens
with
a
lens
cleaning
tissue
and
a
small
amount
of
isopropyl
alcohol.
Note:
Do
not
touch
the
lens
with
the
bare
hand.
1.
Preparation
for
Adjustment
Setting
the
Test
Mode
TEST
MODE
0
Pressing
simultaneously
the
All
the
segments
light
for
1.5
“CLEAR”
and
“CALL”
buttons,
set
|
seconds
and
then
the
Test
Mode
the
function
switch
to
“CD”.
0
indication
appears.
“|
F
=
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TEST
MODE
1
TEST
MODE
2
TEST
MODE
3
TEST
MODE
4
TEST
MODE
5
After
TEST
MODE
5
the
PLAY
button
is
inoperative.
Even
when
it
is
pressed
(6th
time),
key
entry
is
not
accepted.
In
TEST
MODE
0
press
once
the
PLAY
button.
(1st)
Laser
lights.
In
TEST
MODE
1
press
once
the
PLAY
button.
(2nd)
Focus
start
(Servo
ON)
Disc
rotates.
(Spin
servo
ON)
(Use
the
disc.)
In
TEST
MODE
2
press
once
the
PLAY
button.
(3rd)
In
TEST
MODE
3
press
once
the
PLAY
button.
(4th)
Tracking
servo
ON
(Use
the
disc.)
Track
No.
and
time
are
indicated.
(Use
the
disc.)
In
TEST
MODE
4
press
once
the
PLAY
button.
(5th)
*Unless
the
CD
lid
switch
SW961
is
tumed
on,
the
test
mode
is
not
set.
Button
Operation
in
Test
Mode
14.
When
the
STOP
button
is
pressed,
all
operations
stop.
At
this
time
the
optical
pickup
does
not
slide,
and
TEST
MODE
0
is
displayed.
2.
While
the
UP/CUE(DOWN/REVIEW)
button
is
pressed,
the
optical
head
moves
from
inside
to
outside
or
from
the
outside
to
the
inside.
*
Operation
is
possible
both
during
playing
and
stopping.
e
While
this
operation
is
executed,
the
TEST
MODE
indication
does
not
change.
After
the
optical
pickup
is
slided
from
the
outside
to
the
inside
and
the
optical
pickup
switch
is
turned
on,
the
slide
stops.
(At
the
same
time
TEST
MODE
Ois
set.)
Notes:
1.
Any
buttons
other
than
those
specified
above
are
invalid.
2.
Before
operation
be
sure
to
connect
all
the
connectors.
442
SYSTEM-CD5552ZT
Servo
Unit
All
the
semivariable
resistors
must
be
set
in
the
mechanical
center
position.
Adjusting
Parts
Instrument
Connection
i
Set
TEST
MODE
0,
and
move
the
pickup
to
the
center
i
Set
Test
MODE
1
(make
sure
that
the
laser
lamp
lights)
After
loading
a
disc,
set
to
TEST
MODE
2.
(Check
to
see
that
focus
servo
is
ON.:
The
disc
does
not
rotate,
and
a
whining
sound
is
heard.)
Set
TEST
MODE
3
(Spin
servo
is
turned
on,,
and
the
disc
rotates)
i
|
i
Tracking
error
balance
adj.
NVRA1
*4
(See
Fig.
12-1)
Pin
6
(1/2Vcc)
and
pin
4
(TG1)
of
TP751
Set
TEST
MODE
4
(Tracking
servo
is
turned
on.)
|
Check
the
HF
signal
waveform
_
Amplitude
of
1.5-2.0
Vp-p
|
Pin
3
(HF)
and
pin
7
(GND)
of
'
|
(See
Fig.
12-2.)
|
TP751
Focus
gain
adj.
VR751
Adjust
to
obtain
the
same
waveform
|
Pin
1
(FG1)
and
pin
5
(FG2)
of
|
on
CH1
and
CH2.
*2
TP751
and
ground
(The
relay
circuit
|
is
used.)
|
Adjust
to
obtain
the
same
waveform
|
Pin
4
(TG1)
and
pin
2
(TG2)
of
i
|
Tracking
gain
adj.
VR750
on
CH1
and
CH2.
*3
TP751
and
ground
(The
relay
circuit
|
is
used.)
Check
again
the
HF
signal
waveform.
'
Set
TEST
MODE
5,
and
make
sure
that
track
No.
and
time
are
displayed.
Stick
black
tape
on
the
disc,
and
play
that
section
(Fig.
13-1).
(Any
mode
other
than
the
test
mode
is
acceptable.)
E28.
Focus
offset
adj.
VR700
*4
(Fig.
13-2)
Pin
6
(1/2Vcc)
and
pin
1
(FG1)
of
:
TP751
*5
Tracking
offset
adj.
VR710
Pin
6
(1/2Vcc)
and
pin
4
(TG1)
of
TP751
*7
*
4.
Adjust
to
obtain
vertically
symmetrical
waveform
(Fig.
12-1)
with
respect
to
reference
DC
level.
The
reference
level
is
1/2Vcc.
(Amplitude
of
0.5
to
1.5
Vpp)
*
2.
Input
oscillation
frequency:
1.3
kHz,
100
mV
rms
*
3.
Input
oscillation
frequency:
1.5
kHz,
300
mV
rms
*
4.
Watch
the
monitor.
Adjust
so
that
the
error
waveform
is
uniform
and
minimum
(Fig.
13-2)
and
the
audio
output
is
played
properly
without
noise
(track
jump
noise)
and
free
from
skips
and
pauses.
*
5.
The
appropriate
measuring
range
of
the
oscilloscope
is
50mV
and
0.5mS.
Connect
the
trigger
to
pin
14
(HFOK)
of
CNS700.
Trigger
the
coupling
at
DC
and
(—)
slope.
Observe
the
waveform
in
the
normal
trigger
mode.
*
6.
Watch
the
monitor.
Adjust
so
that
the
error
waveform
is
uniform
and
minimum
(Fig.
13-2)
and
the
audio
output
is
played
properly
without
noise
(track
jump
noise).
*
7.
The
appropriate
measuring
range
of
the
oscilloscope
is
0.1V
and
0.5mS.
The
trigger
is
the
same
as
*5.
(Reference)
When
the
noise
element
of
the
error
waveform
is
large
and
unclear,
observe
the
waveform
through
the
low-pass
filter
(Fig.
13-3).
|
SSR
RER
MANNS
DL
ARR
RARRRA
OP.
O.O
OP OP
OG.
AK
,
Vp-p
Reference
FarERETUTNINA
Mm
|
Syma
evel
—
AT
ALLARERARV
A
uP
anc
down
1/2
Vec
et
ee
—0.5~1.5Vp-p
ms
verter
deed
Pin
7
Figure
12-1
Figure
12-2
2405
SYSTEM-CD555ZT
SYSTEM-CD555ZT
Stick
black
tape
on
the
disc
:
NOTES
ON
SCHEMATIC
DIAG
RAM
(1.2
~
1.5
mm
wide)
¢
Resistor:
1.
Tuner
aa
To
differentiate
the
units
of
resistors,
such
symbol
as
K
and
M
are
(.
):
AM
mode
/
|
used:
the
symbol
K
means
1000
ohm
and
the
symbol
M
means
Marking
except
for
(_
):
FM
mode
,
g
{
\
1000
kohm
and
the
resistor
without
any
symbol
is
ohm-type
2.
CD
i
C)
i
resistor.
Besides,
the
one
with
“Fusibie”
is
a
fuse
type.
(_
):
Play
mode
\
|
¢
Capacitor:
Marking
except
for(
):
Stop
satate
\
/
+
ge
. . .
eee
<a
.
/
|
erect
Oscilloscope
To
indicate
the
unit
of
capacitor,
a
symbol
P
is
used:
this
3.
eueo
Sel
FG1
Q
;
5
symbol
P
means
micro-micro-farad
and
the
unit
of
the
capacitor
(
):
Record
mode
TG1
without
such
a
symbol
is
microfarad.
As
to
electrolytic
capacitor,
Marking
except
for(
):
Play
mode
A
disc
other
than
the
test
disc
The
error
waveform
should
be
=
820P
the
expression
“capacitance/withstand
voltage”
is
used.
can
be
used.
Do
not
put
the
black
uniform
and
minimum.
(CH),
(TH),
(RH),
(UJ):
Temperature
compensation
*
Schematic
diagram
and
Wiring
Side
of
P.W.
Board
for
this
tape
on
the
initialized
section
o
(ML):
Mylar
type
model
are
subject
to
change
for
improvement
without
prior
(TOC).
1/2
VCC
(P.P):
Polypropylene
type
notice.
Figure
13-1
Figure
13-2
Figure
13-3
¢
The
indicated
voltage
in
each
section
is
the
one
measured
by
e
Parts
marked
with
“A\”
(<==)
are
important
for
maintaining
;
Digital
Multimeter
between
such
a
section
and
the
chassis
with
nc
the
safety
of
the
set.
Be
sure
to
replace
these
parts
with
gs
signal given.
specified
ones
for
maintaining
the
safety
and
performance
of
TP751
pada
the
set.
(FG1)
(TG1)
Hisie
~)
GENERATOR
(FG2)
oe
oe
mee
RP
SELECTOR
pPLAYEPEAT
[OFF
Sotilator
ue
a
Koni
RIP
SELECTOR
PLAY
PLAY/REPEAT
OFF
DUBBING
SPEED
NORMAL
The
jig
(BPF)
we
recommended
to
reduce
high
frequency
TAPE
SELECTOR/FM
MODE
|
NORMAL/FM
NONO
UP/CUEPp}
ee
ee
BEAT
CANCEL
ares
DOWNAEVIEWbes
tors
can
be
used
to
achieve
the
same
results.
OFF
A
OFF
|
TAPE
2
STOP
TAPE
1
PLAY
Figure
13-4
Figure
13-5
Rex
Do
not
connect
the
cable
on
the
pickup
in
the
power
ON
state.
This
may
damage
thw
pickup.
FRONT
FRONT
CNP720
CFS700
TP751
ald
(39s
(sec
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:
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