Denon DCD-1500 User manual

DENON
_......
SERVICE MANUAL
STEREO CD PLAYER
MODEL DCD- 1500
NIPPON
COLUMBIA
CO.
LTD.

TABLE OF CONTENTS |
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HANDLING CONNECTION AND SAFETY INFORMATION FOR THE KSS-121A
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MAINTENANCE AND ADJUSTMENT PROCEDURE. ... 0.0.0.0... 0 0 cece eee eee ee 13 ~ 20
FUNCTION OF IC TERMINAL. .........-. ara ie ioc epee and eaten fy ste See Rien este ers 21
FUNCTION OF SUB CODE OUTPUT TERMINAL. 00002002000 cee cece ee cee ene enee 22
TROUBLESHOOTING. ....... 000 eee e ccc ee c ee tee cece enn e eee een eens 23 ~ 27
PARTS LIST OF PW. BOARD ..... 0.00.0 c ce ccc ce cece eee e eee eee eeeteeaee 28 ~ 31
PARTS LIST OF EXPLODED VIEW 00.0.0 0c cece cee ce ee sence eee ee eneees 32
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EXPLODED VIEW OF FG-500 MECHANISM UNIT... 0.0.00 c ee cee cece eee eens 34
PW.BOARD ,...... 0.00 cece ccc ce ee cert bee eeedeeneenaeee ee 35 ~ 37
WIRING DIAGRAM «6 2a cnn k cor eo Seat hg Aicoed Pee dada dhanwadetawg we nee 38
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FEATURES
The DCD-1500 compact laser disc player utilizes a unique DENON Double Super Linear Converter which
- prevents deterioration of sound quality in the PCM playback system, assuring accurate reproduction of
sound
recorded
on
compact
laser
discs,
in
the
studio
or
in
live
sound
production
areas.
The
parts
for
this
high
pertormance
disc
player
have
been
selected
with
careful
discrimination,
to
produce
realistic
playback
of the full musical production. : >

eer
SPECIFICATIONS
AubDIo
No. of channels:
Frequency response:
Dynamic range:
Signal-to-noise ratio:
Harmonic distortion:
Separation:
Wow and flutter:
Output voltage:
DISCS
Playing time:
Diameter:
SIGNAL FORMAT
Sampling frequency:
Quantization:
Transmission bit rate:
PICKUP
System:
Lens drive system:
Light source:
Wavelength:
GENERAL CHARACTERISTICS
Power supply:
Power consumption
Dimensions:
Weight:
FUNCTIONS AND DISPLAY
Functions:
Display:
Other functions:
REMOTE CONTROL UNIT
Remote control system:
Power supply:
External dimensions:
Weight:
ACCESSOREIS
2 channels
5 ~ 20,000 +0.3 dB
Above 96 dB
Above 96 d&
0.0025% {1 kHz}
95 dB (1 kHz)
Less
than
the
measuring
timit
(0.001%
W.
peak)
2.0V
Compact discs are used.
60
min/singel
side
(Maximum
79.8
min/single
side)
120 mm
44.1 kHz over sampling
16 bit tinear/channel
4.3218 M bits/sec
Objective tens drive system, laser pickup
Two-dimensional parallel drive
Semiconductor laser
780 nm
50/60 Hz, Voltage is shown on rating labei.
WW
434
(17.1
in)
W x
89
(3.5
in)
H
x
350
(13.8
in}
D
mm
6.0
kg
Direct
selection,
quick
selection,
programmed
selection,
repeat
playback
pause,
skip
monitor,
index
search,
A-B
repeat
Track
number,
index
number,
time,
and
program
Headphone
jack
{variable
level),
Variable
level/fixed
tevel
output
terminal
RC-1500
Infrared pulse system
3
vioc
Two
SUM-4
(standard
size
four)
dry
cell
batteries
60
(2.4
in)
W
x
150
(5.9
in)
H
x
17
(0.7
in)
D.
mm
“
98
g
(Inctudes
batteries)
Connecting pin cord
*
Design
and
specifications
are
subject
to
change
without
notice
in
the
course
of
product
improvement.
VAROITUS:
SUOJAKOTELOA
Ei
SAA
AVATA.
LAITE
SISALTAA
LASER-DIODIN,
JOKA
LAHETTAA
SILMALLE
VAARALLISTA
LASER-SATEILYA,
ADVARSEL:”
USYNLIG
LASERSTRALING
VED
ABNING
NAR
SIKKERHEDSAFBRYDERE
ER
UDE
AF
FUNKTION,
UNDGA
UDSAETTELSE
FOR
STRALING.
“
CLASS
I
LASER
PRODUCT“
Se

-| NAMES. AND FUNCTIONS OF PARTS
eet ee
ae ® 80 oo
Sata ——
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""@ Power Switch (POWER)
Press this switch to turn the power source ON.
‘When the power is turned ON, (QQ) will light up in the
RACK NO section of the display @. if no disc is
loaded at this time, (~~-——) will be displayed after
several seconds.
number of tracks on the disc will be displayed in the
TRACK NO. section of the display, and the total
playback time will be displayed under the TIME section.
The calendar will light up to display the total number
of tracks.
@Q Disc Holder
The disc is loaded into the disc holder for play
The disc holder is opened and closed by pressing the disc
: holder open/close button (A OPEN/CLOSE) @. ~ 2
It can also be closed by Pressing the play button (>
3) Disc Holder Open/Close Button ..
(A OPEN/CLOSE) Se
“eject the:
orward: Press it again to close the holder
If a disc is loaded, the DISC indicator will light, the total_._
@ If the disc holder is closed and a disc has been loaded,
the disc is rotated for several seconds, and then the
machine enters. STOP state. The total number of tracks
on the disc and the total playback time are then
displayed on the digital display @.
(4) Display
@ The display area consists of sections for the track
number, the index, the playback time,-and the calendar.
PAUSE
PLAY
:
Indicator
indicator
sais
cc 3e2f
oma Os
- Thewaninn TE ~
ogc _froc [V2 To T+ NTs [eT]
Paseele Nebel hte
= Oispteys the 11a!
OVER ingicator Dlayback time of
7? fncicator. for recorded tacks, the remaining Wacks
iret (Discs with more 10 be plavea
Program nan 21 tracks} Disiavs the
wpaicalen, Catender remaining playback
time-tor the
current wack

3+ te sete weet
i
{
i
©.
Remote
Control
Photosensitive
Window
©
This
window
receives
the
light
transmitted
from
the
wireless
remote
control
unit;
©
The
RC-1500
wireless
remote
control
unit
should
be
operated
while
it
is.
pointed
in
the
direction
of
the
photosensitive
window,
®
When
the
remote
control
is
operated,
the
remote
contro!
sensor
indicator
lamp
will
tight
in
the
display
area
@.
©
Fast
Reverse
Skip
Button
(
€4
)
©
Press
this
button
to
move
playback
in
fast
reverse,
@
When
the
machine
is
in
play,
sound
will
be
produced
during
the
time
that
the
button
is
being
pressed
and
the
fast
reverse
is
operating.
©
If
the
button
is
pressed
while
the
machine
is
in
the
Pause
state,
the
fast
reverse
will
operate
three
times
faster
than
the
reverse
speed
when
the
machine
is
in
the
play
state.
No
sound
will
be
Produced.
@
Fast
Forward
Skip
Button
(>>)
@
Press
this
button
to
move
playback
in
forward,
e@
When
the
machine
is
in
play,
sound
will
be
produced
during
the
time
that
the
button
is
being
pressed
and
the
fast
forward
is
operating.
©
If
the
button
is
pressed
while
the
machine
is
in
the
pause
state,
the
fast
forward
will
operate
three
times
faster
than
the
fast
forward
speed
when
the
machine
is
in
the
play
state.
No
sound
will
be
produced.
©
Track
Button
(
)
©
Press
this
button
to
move
the
pickup
forward
and
advance
to
the
beginning
of
the
desired
track,
®
If
the
TRACK
button’
is
pressed
during
playback
or
\
Pause,
the
pickup
moves
forward
to
the
beginning
of
the
track
that
corresponds
to.
the
number
of
times
the
button
was
pressed.
7
©
Track
Button
(
A)
‘
@
Press
this
button’
to
move
the
pickup
Babkeward:
to
return
to
the
beginning
of
the
desired
track,
@
If
the
TRACK
button
is
Pressed
during
playback
or
Pause,
the
pickup
moves
back
to
the
beginning
of
the
track
that
Corresponds
to
the
number
of
times
the
button
was
pressed.
@
index
Button
(INDEX)
©
Press
this
button
to
begin
playback
at
an
index
number
»
within
a
track,
.
®
Select
the
desired
index
number
by
using
the
ten-key
“pad.
.®
Program
and
Direct
Button
-
-
(PROGRAM
&
DIRECT)
.
Press
this
button
to
select
the
memory
program
function
direct
track
selection
function,
® +10 Button (+10)
®
Press
this
button
to
select
a
track
number
that
is
larger
than
11.
@
The[*10}button
is
used
in
conjunction
with
the
ten-key
pad
@®.
For
example,
to
select
track
number
15,
press
the
button.
and
then
[5]
on
the
ten-key
pad.
©
Similarly,
to
select
track
number
32,
press
[10]
,
(470!
and then press (2].
® Ten-key Pad
@
These
buttons
are
pressed
for
direct
track
selection
or
to
Program
a
selection
into
memory.
For
example,
to
play
back
the
third
track
using.
the
direct
selection
function,
°
press
03)
on
the
key
pad.
Track
number
3
will
then
start
to
play.
To
play
track
number
12,
press
{410}
and
then
[2].
@
To
use
the
keypad
in
Program
mode,
first
press
the
PROGRAM
&
DIRECT
button
to
enter
the
correct
mode.
® Play Button ( » PLAY)
©
Press
this
button
to
play
a
disc,
@
When
the
PLAY
button
is
pressed,
the
{
>
PLAY!
indicator
fights,
and
the
number
of
the
track
being
Played,
the
index
number,
and
the
elapsed
playback
time
for
that
track
are
displayed.
The
calendar
lights
to
display
the
all
of
the
playback
tracks.
The
displayed
tracks
then
go
out
in
order
as
each
finishes
playing.
®
When
playback
of
the
last
track
has
finished,
the
>
PLAY}
indicator
goes
out,
and
the
machine
enters
Stop
state.
®
It
is
also
possible
to
use
the
PLAY
button
to
close
the
disc
holder
after
a
disc
has
been
inserted.
Playback
then
begins.
®
Pause
Button
( |
PAUSE)
@
Press
this
button
to
stop
the
playback
temporarily.
©
If
the
PAUSE
button
is
pressed
during
playback,
the
play
is
stopped
temporarily,
the
PLAY
lamp
goes
out,
and
the
PAUSE
iamp
lights.
©
To
end
the
pause,
push
the
PLAY
key
®.
@® Stop Button ( » STOP)
©.
Press
this
button
to
stop
the
playback.
;
©
The
rotation
of
the
disc
stops,
and
the
total
number
of
tracks
and
the
total
playback
time
are
read
Out
on
the
TRACK
NO,
and
TIME
sections
of
the
display.
m)
During
programmed
playback,
the
total
number
of
tracks
programmed
in
memory
and
the
total
pro-
grammed
performance
time
are
displayed.
@
A-B
Repeat
Button
(A
—
B)
©
Press
this
button
to
perform
repeated
playback
of
a
desired
section
between
two
specified
points.

@. Repeat Button (REPEAT)
© Press this button to repeat playback.
@ When the REPEAT button is pressed, the [REPEAT]
indicator tights and repeated playback is performed. for
ali of the tacks on the disc. During programmed
playback, all of the tracks programmed into memory are
played repeatedly.
Press the REPEAT button again to cancel the repeat
operation,
@® Call Button (CALL)
© Press this button to verify the track numbers that have
been programmed into memory.
@ Time Mode Button (TIME MODE)
@ This button is used to select the type of information to
be read out under the TIME section of the display.
Either the elapsed playback time of the current track,
the remaining playback time for that track, or the
playback time for the remaining tracks on the disc can
be selected,
Normally the elapsed playback time of the current track
is displayed. }f the button is pressed once, the [SINGLE }
indicator lights and the remaining time left to play on
the track is displayed. If the button is pressed again, the
“SINGLE | indicator goes on, and the [TOTAL]
indicator goes on, and the playback time for the remain-
ing tracks left on the disc is displayed. If the button is
pressed once more, the | TOTAL j indicator goes out
and the display returns to the elapsed playback time for
that track,
{f the button is pressed so that the [TOTAL | indicator
fights during programmed playback, the playback time
for all of the remaining programmed tracks is displayed.
@ Clear Button (CLEAR)
©@ Press this button to correct the programmed contents
of memory.
»
‘@. Timer Button (TIMER)
*@ This button is used in conjunction with an audio timer
to perform timer playback at the specified time.
® Volume adjustment knob
@ This knob is used to adjust the output jevel (volume) of
the headphone jack.
@ Headphone Jack (PHONES) '
© When using headphones, please listen to them at an
appropriate volume.
(Headphones are sold separately.)
@® Output terminal (OUTPUT)
® Connect the output terminal to the input terminal of the
amp.
@ Sub code output terminal
(SUB CODE OUT)
® This output terminal will enable the more effective use
of the compact disc player in the future,

|
NOTE
FOR
HANDLING
|
LASER
PICK-UP
DESCRIPTION
OF
THE
COMPONENTS
CROSS-SECTIONAL
DRAWING
OF
THE
OPTICAL
PICK-UP
+ x-axis + Z-axis
I objective fens
\
objective tens
TRK/FCS coil
°
concave
lens
t base magnet
optical bos actuator cover 8
cylindrical lens
actuator harness
i
NPBS
oie
photodiode
photodiode
PD
PWB
re
fe
ipi
ie
{6-element)
Laser Diode Pwe
POD harness
LD harness
7. Labet
7-1. Serial number
/
¢
}
f
f
N
\
This
denotes
the
serial
number
used
for
quality
control
in
the
manufacturing
plant.
7-2.
Labet
ay
year
. ‘ (last figure)
day month i quality control No.
Oo ay :
10 1 107!
ao oOo a3
For example, 56.5 mA wilt be expressed as 565.
7-3. Position of the labels
serial number

Se
ELECTRICAL PIN CONNECTION
1. PD harness
12345678
JST
Veco A
YEL
1
2
3
4
5
6
7
8
2. Actuator harness
1 Focus 4 2 Tracking 3
9
i
Pal
9
|
|
FCS + : Lens moves toward the disc
TRK + : Lens moves toward the center of the disc
3. LD harness
Pin No. } description
+ reference
monitor
; GND
| laser

FOR
THE
KSS-121A
CG,
4aL
PICK-UP
1. Handling Instructions :
Please
read
the
following
instructions
Carefully
before
handling pick-ups.
1) Handle with care
The
pick-up
KSS-121A
is
assembled
and
precisely
adjusted
using
a
sophisticated
manufacturing
Process
in
our
plant.
Keep
the
pick-up.
protected
from
vibration
and
impact.
Do
not
disassemble
or
attempt
to
re-adjust
it.
Hold
the
optical
base
(aluminum
diecast)
when
handl-
ing
it.
Do
not
touch
the
PD
and
LD
PWB
(Printed
Wiring
Board).
2
Storage
Do
not
store
the
Pick-up
in
dusty,
high-temperature
or
high-humidity
environments.
3
Laser Diode
Protect Your Eyes
Do
not
Jook
at
the
taser
light
beam
through
the
objective
lens
directly
nor
another
lens
or
a
mirror,
The
taser
beam
may
damage
the
human
eye,
since
the
intensity
of
the
focusd
spot
may
reach
1.3%
10"
W/em2
even
if
the
intensity
at
the
objective
lens
is
400
YW
maximum,
Poison
:
The
LO
chip
contains
As
(arsenic),
a
poison.
Aithough
the
poison
is
relatively
weak
and
the
amount
is
small,
avoid
putting
the
chip
in
acid
or
an
alkali
solution,
heating
it
over
200°C
or
Putting
itjinto
your
mouth,
Avoid
surge
current
or
electrostatic
discharge
The
LO
may
be
damaged
if
a
large
current
is
applied
to
it,
even
if
only
a
short
pulse.
For
safe
handling
of
an
LD,
grounding
the
human
body
and
Measuring
equipment
\
is
strongly
recommended.
Make
sure
that
there
is
no
Surge
Current
in
the
LD
driving
circuit.
The
PINs
of
the
LD
are
short-circuited
for
Protection
during
shipment,
To
open
the
short
Circuit,
remove
the
soldering
quickly
with
@
soldering
iron
whose
insulation
resistance
is
larger
than
10
MQ
after
connection
to
a
suitable
“APC
Circuit.
The
temperature
of
the
sildering
iron
should
be
less
than
320°C,
Note:
“APC
(Auto
Power
Contro!)
HANDLING,
CONNECT
ch
AND
SAFETY
INFORMATION
4) Actuator
The
performance
of.
the
actuator
may
be
effected
if
magnetic
material
is
located
nearby,
since
the
actuator
has
a
strong
magnetic
circuit,
Do
not
permit
dust
to
enter
through
the
gap
of
the
cover.
Cleaning the lens:
Lens-cleaning
paper
with
50
:
50
mixed
solvent
of
IPA
(Isopropyl
atcohol}
and
Freon
(freon
113.
CCI
F-CC1F)
is
recommended.
:
2. Connections
1)
How
to
mount
the
pick-up
:
Use
the
reference
plane
as
shown
in
the
assembly
draw-
ing
when
mounting
the
pick-up
in
the
transportation
mechanism.
No
special
adjustment
such:
as
skew
adjust-
ment
or
grating
angle
adjustment
is
required.
The
meta!
bearing
of
Cu-compound
sintered
alloy
is
impregnated
with
oil.
You
do
not
normally
need
to
lubricate
the
bushing.
If
you
need
to
lubricate,
use
Hydrofluid
EP-56
(Mitsubishi
Oil),
2
Harness and connector
Use
the
specified
connector
housings
for
electrical
connections.
Care
should
be
taken
to
see
that
the
con-
nector
of
the
LD
harness
is
clamped
tightly,
since
a
loose
connection
may
cause
a
serious
damage
to
the
LD.
There
may
be
a
deterioration
in
the
eye
pattern
if.a
digital
noise
source
such
as a
microcomputer
is
position-
ed
near
the
PD
harness.
‘
3) Safety regulations
This
pick-up
is
designed
to
meet
general
safety
regula-
tions.
For.
the
pick-up
as
installed
in
a
set
to
be
certified
‘as
meeting
the
safety
regulations
of
a
Particular
country,
however,
application
will
have
to
be
made
to
the
proper
authorities.

)
e
Removal
of
Top
Cover
|
2
Push
three
hooks
on
the
bottom
of
the
Front
Panet
Remove
two
screws
on
the
front
and
tow
screws
on
the
witha
@
screwdriver,
and
draw
the
Panel
frontward
rear
of
Top
Cover
ed
and
detach
the
Top
Cover
by
means
releases
hooks
to
detach
the
Front
Panel
from
the
of
Hifting
it.
chassis. Further, the Front Panet and the P.W.B’s are
linked
with
connectors,
remove
them.
as
necessary.
©
Removal
of
Front
Panel
(Figure
1)
1 Remove three screws 68) and three screws 6) secur-
ing Front Panel. (Figure 1)
Front panet
Wy?
i
i {
Fig, 1
3 To remove the Front Panel entirely from the chassis,
unlink the connectors between the chassis and the
display P.W.B.mounted on the Front Panel. (Figure 2)
ee a Chassis Connector
a
(
Fig. 2
©
Removal
of
Display
P.W.B
from
the
Front
Panel
2
Detach
the
P.W.B.employing
FL
tube,
then
push
the
1
Remove
eight
screws
6)
and
@
—6each
3x
10
mm
5
snap-fit.
in
the
direction’
.arrow
shows
to
remove
CBTS(P);
2
each
3
x
6
mm
CBTS(S)
holding
the
Display
P.W.B.(KU-5770).
(Figure
3)
P.W.B. ma +e
Disptay P.W.Board
FL tube
Snap-fit