Denon DCD-1500II User manual

DENON _........
SERVICE MANUAL
STEREO CD PLAYER
MODEL DCD- 15001
NIPPON COLUMBIA Co. LTD.

TABLE OF CONTENTS
;
Baa
=r"
i
PE
RI
Shs
oe
ers
ehond
Solent
ew
as
ge
crs
tliat
lane
3
dd
Dat
RE
et
2
H
SPECIFICATIONS
............--
rer
ee
ee
ee
eH
OE
ht
we
ead
3
i
NAMES
AND
FUNCTIONS
OF
PARTS
.........
000000
cece
ete
cee
ete
teen
eee
4,5
NOTE
FOR
HANDLING
OF
LASER
PICK-UP.......
eee
ud
caine
en
tanta
Sind
eats
ae
wise
6,7
DISASSEMBLY
.........
hang
edt
anseaitnta
dh
tptaatt
dh
teed
cd
Ses
cee
Raa
area
one
ge
Cad
tet
8~10
MAINTENANCE
SERVICE
AND
ADJUSTMENT.
............
00
ce
eee
eee
eee
11~17
PARIS LIST. OF PW: BOARD occc > bce eee Odie hile epee wate e en hee 18~ 21
EXPLODED VIEW OF FG-610 MECHA UNIT... 00.2... c eect eee ee nee 22
PARTS LIST OF FG-610 MECHANISM UNIT... 00.0.0. 0c cece eee tee eee tenes 23
PARTS LIST OF EXPLODED VIEW ¢.5 oo Nev eoenos sea esGab a duces oda sie es 24
EXPLODED VIEW x ac cance pice ea ea EO Bren wet we RS < 25
PW: BOARD oid case Poke ad pals Bo GRO eo ae ae ae TE ae 26, 27
WIRING
DIAGRAM
efi
ached
ot
teers
se
eG
dale
nen
ae
eats
aed
aoe
atan
PEs
28
SCHEMATIC
DIAGRAM:
ior5.o
keen
Ko
NtL
bon
eae
wa
edane
ane
he
haere
29
SEMICONDUCTORS
sues
ne
dese
eee
foie
ese
ee
a
ewe
e
aan
ewe
eee
eas
30
i
)
j
i
ar |
i
i
:
I
t
fi
i
'
1
1
|
|
\
{
H
FEATURES
The
DCD-1500I
compact
laser
disc
player
utilizes
a
unique
DENON
Super
Linear
Converter
which
prevents
deterioration
of
sound
quality
in
the
PCM
playback
system,
assuring
accurate
reproduction
of
sound
record
on
compact
laser
discs,
in
the
studio
or
in
live
sound
production
areas.
The
parts
for
this
high
performance
.
disc
player
have
been
selected
with
careful
discrimination,
to
produce
high
quality,
realistic
playback
of
the
full
musical
production.

SPECIFICATIONS
AUDIO
No. of channels:
Frequency response:
Dynamic range:
Signal-to-noise ratio:
Harmonic distortion:
Separation:
Wow and flutter:
Output voltage:
DISCS
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:
ACCESSOIRES
ee
=
2 channels
2 ~ 20,000 Hz
96 dB
103 dB
0.003% (1 kHz)
100 dB (1 kHz)
Less than the measuring limit (+0.001% W. peak)
Fixed: 2.0V
Variable: Max. 2.0V
Audio compact discs are used.
50/60 Hz, Voltage is shown; on rating label
17W
434 (17.1 in) X x 107 (4.2 in) H x 324 (12.8 in) D mm e
9.3 kg
Direct selection, automatic search, programmed selection, repeat playback,
manual search, auto space, time mode, call, auto edit.
Track number, index number, time, program, and direct, etc.
Headphone Jack (Variable level) Digital out ON/OFF Switch.
RC-202 —
Infrared pulse system
’ 3V DC Two SUM-3 (standard size AA) dry cell batteries
62 (2.4 in) W x 162 (6.4 in) H x 18 (0.7 in) D mm
120 g (Includes batteries)
Connecting pin cord, Mini screwdriver
* Design and specifications are subject to change without notice in the course of product improvement.
VAROITUS: SUOJAKOTELOA El SAA AVATA. LAITE SISALTAA LASER-DIODIN, JOKA
LAHETTAA NAKYMATONTA SILMALLE VAARALLISTA LASER-SATEILYA.
ADVARSEL: USYNLIG LASERSTRALING VED ABNING NAR
SIKKERHEDSAFBRYDERE EU UDE AF FUNKTION.
UNDGA UDSAETTELSE FOR STRALING.
“CLASS |! LASER PRODUCT”
“CLASS 1
LASER PRODUCT”

CAUTION
SE WF CET See
sens orn
@ Power Switch (POWER)
e Press this switch to turn the power source ON. -
e@ After the power is turned on, the Variable Output level is
displayed in the S (sec) portion of the display window, then
the Track No. (QQ) lights up. If no disc is loaded, all
number indicators and the calendar light up after several
seconds. If a disc has been loaded, the number of tracks on
the disc wil! be displayed in the Track No. display after a
few seconds, and the total time will be displayed by the
Time display. The Calendar display wiil stay on until the
total number of tracks is displayed, (but will indicate
OVER]if there are more than 21 tracks on the disc). It will
go off when playing starts.
2) Diet Holder
The disc is loaded into the disc holder for play.
e The disc holder is opened and closed by pressing the disc
holder open/close button ( 4 OPEN/CLOSE) @.
® It can also be closed by pressing the play button ( P~
PLAY) @® or pause button ( Il PAUSE) @®.
@ Disc Holder Open/Close Button ( 4 OPEN/CLOSE)
e@ The disc holder C2] is opened and closed by pressing this
button.
@ Press the button once to eject the disc holder (2) forward.
Press it again to close the holder.
@ If the disc holder is closed and a disc has been loaded, the
disc is rotated for several seconds, and then the total num-
ber of tracks on the disc and the total playback time are
then displayed on the digital display @.
4) Display
e@ The display area consists of sections for the track number,
the index, the playback time, and the calendar.
Direct Remote control
indicator sensor indicator
Emphasis
indicator
Pause indicator
Playback Remainder of
indicator Current track
indicator
@REMOTE SEARCH
EMPHASIS @§ [PAUSE]
DIRECT »(CPLAY7 u a
INDEX
aa ann
Geo okt
Program Total remaining
indicator indicator \ time indicator
Calendar
Recorded track overflow Autospace Repeat between
indicator (for discs with indicator A and B indicator
21 or more track numbers}
Remote Control Photosensitive Window
This window receives the light transmitted from the wire-
less remote control unit.
The RC-202 wireless remote control unit should be operat-
ed while it is pointed in the direction of the photosensitive
window.
When the remote control is operated, the remote control
sensor indicator lamp will light in the display area
Auto Edit Button (AUTO EDIT)
This automatic programming function devided the compatt™
disc, which is recorded on only one side, into two halves, to
resemble side A and B of an ordinary analog disc. Total
playing time is divided at the break between tracks which is
nearest to the 1/2 point. The break is made at the beginning
of the track to avoid interrupting the trackduring playback.
Pressing this button when the player is stopped causes the
playback time for the first half of the disc to be displayed
for approximately 2 seconds in the TIME display, along
with the numbers of the tracks on that side, displayed in
the CALENDAR display. Next, the content of the second
half of the disc is displayed in the same way.
The player then moves automatically to the start of the
initial track and remains there in the pause state. Play is
started by pressing either the Play (PLAY) or the Pause
(PAUSE) button. When playing of the first half of the disc
is ended, the player pauses automatically at the start of
the first track of the second half.
This function operates only when a disc with 20 or fewer
tracks is played.
AuTe SPACE Button (AUTO SPACE)
Pressing this button will cause the [AUTO SPACE] indicator
to light up and a blank portion tasting 4 or more seconds to
be inserted between the tracks. If this button is pressed
while the [AUTO SPACE] indicator is lit, the lamp will go off
and the auto space function will be cancelled.
When the AUTOMATIC SEARCH button (Kd, PPI) is
pressed, the auto space function will not operate.
The auto space function will operate with Programmed
playback as wel! as normal playback.
Although a blank interval is inserted between tracks when
the Auto Space function is operating, the 4-second interval
is not added to the time remaining display or to the time
display during Auto Edit.
Time Mode Button (TIME)
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.
Normaily the elapsed playback time of the current track is
displayed. If the button is pressed once, the in-
dicator lights and the remaining time left to play on the
track is displayed. If the button is pressed again, the
SINGLE | indicator goes out, and the [TOTAL | indicator
goes on, and the playback time for the remaining tracks left
on the disc is displayed. If the button is pressed once more,
the TOTAL | indicator goes out and the display returns
to the elapsed playback time for that track.
If the button is pressed so that the LTOTAL Jindicator lights
during programmed playback, the playback time for all of
the remaining programmed tracks is displayed.
All Button (ALL)
e@ Press this button to repeat playback.
@ When the [ALL] button is pressed, the [REPEAT ] indicator
lights and repeated playback is performed for all of the
tracks 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.
One Track Repeat Button (1)
@ Press this button when desiring to replay 1 track only.
Pressing this button while a track is playing will cause the
player to replay that track only. (Refer to page 8).
A-B Repeat Button (A — B)
@ Press this button to perform repeated playback of a desired
section between two specified points. (Refer to page 8 for
details.)
Index Button (INDEX)
e@ Press this button when playing from the index within the
tracks. Specify the index No. from the ten key pad.
Clear Button (CLEAR)
e Use this key to make corrections in the programmed tracks.
Call Button (CALL)
@ Press this button to verify the track numbers that have been
programmed into memory.
Program and Direct Button (PROG/DIRECT)
@ Press this button to select the memory program function or
direct track selection function.
+10 Button (+10)
@ Press this button to select a track number that is larger than
11.
e@ The +10 button is used in conjunction with the ten-key pad
@. For example, to select track number 15, press the
button and then{S]on the ten-key pad.
@ Similarly, to select track number 32, press [+10] , [+10],
+10] and then press [2].
Ten key red (1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
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 [3] on the key pad. Track number 3 will then start to
play. To play track number 12, press [+10] and then :
@ To use the keypad in program mode, first press the (PROG/
DIRECT) button @® to enter the correct mode.
Play Button ( » PLAY)
e Press this button to play a disc.
@ When the PLAY button is pressed, the [PLAY] indicator
lights, 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
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.
@® pene Button ( Il PAUSE)
Press this button to stop the playback temporarily.
e If the PAUSE button is pressed during playback, the play is
stopped temporarily, the [PBPLAY] indicator goes out, and
the [LILPAUSE indicatortinhdiae- -
e To end the pause, push the PLAY button @® or PAUSE
button ® again.
@® Stop Button (HM 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.
@ During programmed playback, the total number of tracks
programmed in memory and the total programmed per-
formance time are displayed.
@ Automatic Search Reverse Button ( Kd )
@ Press this button to move the pickup backward, to return
to the beginning of the desired track.
e If this button is pressed during playback or pause, the pick-
up moves back ward to the beginning of the track that
corresponds to the number of times the button was pressed.
@ Automatic Search Forward Button ( >>I )
@ Press this button to move the pickup forward and advance
to the beginning of the desired track.
e
If
this
button
is
pressed
during
playback
or
pause,
the
Pick-
up
moves
forward
to
the
beginning
of
the
track
that
corres:
ponds
to
the
number
of
times
the
button
was
pressed.
@
Manual
Search
Reverse
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
re-
verse
is
operating.
e 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.
@)
Manual
Search
Forward
Button
(
>>
)
@ Press this button to move playback in fast forward.
@ Whe the machine is in play, sound will be produced during
the time that the button is being pressed and the fast for-
ward is operating.
e
lf
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.
@ Headphone Jack (PHONES)
@
When
using
headphones,
please
listen
to
them
at
an
appro-
priate
volume.
(Headphones
are
sold
separately.)
@® Volume adjustment knob
e@
This
knob
is
used
to
adjust
the
output
level
(volume)
of
the
headphone
jack.
@
Digital
Output
Switch
(DIGITAL
OUTPUT)
©
Use
this
switch
to
turn
the
digital
output
terminal
signal
on
and
off.
©
The
digital
signal
is
not
output
when
this
switch
is
off.
@) Output terminal (FIX-VARIABLE)
@
Connect
the
output
terminal
to
the
input
terminal
of
the
amp.
(Refer
to
page
6
for
details
on
connections.)
@®
Digital
Output
Terminal
(DIGITAL
OUTPUT-
COAXIAL)
@ This terminal outputs digital data.
@
Digital
Output
Terminal
(DIGITAL
OUTPUT-
OPTICAL)
This terminal output data as fight.
Optical fiber cord used: Tos-Link types TOCP155 or
TOCP172. Z
Caution: Optical fiber cord is sold separately.

NOTE
FOR
HANDLING
OF
LASER
PICK-UP
@
NAMES
OF
PARTS
e
NAME
PLATE
==:
.
oe
+Z-axis
Direction
—_
Z-axis Cover KSS-I5IA
Object Lens
; OOOO0O0
Slide Base
© C00:
Year (last figure)
Day Month Quality Control No.
LotNo. CO O OO O
OP
Unit
:
Note:
Month
indication
X,
Y,
Z
signify
10,
11,12.
lo
Nameplate
Z-axis
P
O
O
O
O
Y-axis Controf Letter | 1 Figure 1st Decimal Place
¢ by the Plant
(Tangentia} Direction)
10 Figures
X-axis (Radial Direction)
Indication unit is mA omitted a decimal point.
@ CONNECTION DIAGRAM OF CONECTOR (1)
KSS 151A Accessory flexible wire terminals.
:
Soldered
Short
Circuit
Portion
(A)
A
a
@ CONNECTION DIAGRAM OF CONECTOR (2)
KSS-151A > TERMINAL P.W.B > MAIN P.W.B
2U-1461
TERMINAL PW.B
2U-1454
MAIN
PW.B
I
Soldered Short Circuit Portion (A)
\}
Note:
The
soldered
connecting
portion
must
be
bridged
“So
when removing CC102.

eee eee ea
Cautions for Handling the Laser Pick-up
The laser pick-up KSS-151A is assembled and precisely
adjusted using a sophisticated manufacturing process in our
plant. Do not disassemble or attempt to readjust it. Please
keep the following instructions carefully in handling pick-
up.
1. General Care
(1) Storage
Do not store the pick-up in dusty, high-temperatured
or high-humidity environments.
(2) Please take care for preventing from shock by falling
down or careless handling.
2. Laser Diode (LD)
(1) Protect your eyes
The laser beam may damage the human eye, since the
intensity of the focused spot may reach 1.3 x 10* W/
cm? even if the intensity at the object lens is 400 UW
maximum, As the light beam spreads after focused
through the objective lens, it does not effect you in the
place as far as more than 30cms. However, do not
look at the laser light beam either through the
objective lens directly nor another lens or a mirror,
(2) Poison of As
Since the LD chip contains As (Arsenic), as GaAs +
GaAlAs, as known as the poison, although the poison
is relatively weak, in comparing. with others, e.g.
As,03, AsCl3 etc., and the amount is small, avoid
putting the chip in acid or an alkali solution, heating it
over 200°C or putting it into your mouth... ..
(3) Avoid surge current or electrostatic discharge
The LD may be damaged or deteriorated by it’s own
strong light if a large current is supplied to it, even if
only a short pulse. —
-Make sure that there is no surge current in the LD
driving circuit by switches or else. Be careful to handle
pick-up as it may be damaged in a moment by human
electrostaic discharge. The pins of the LD are short-
circuited by solder for protection during shipment
(Soldered short circuit portion (A)].
For safety handling of an LD, grounding the human
body, measuring equipments and jig is strongly recom-
mended, And still it is further desirable to make use of
mat on the platform and floor for handling the LD.
To open the short circuit, remove the soldering quickly
with a soldering iron whose metal part is grounded.
The temperature of the soldering iron should be less
than 320°C (30W).
'\ 3, X-axis Actuator
(1) 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 clearance of the cover.
(2) Cleaning the lens
It may change the specifications when dust or dirt is
stuck on the object lens.
For cleaning, use a dry_tense¥@aning paper applying
no excessive pressure to the lens. If it is difficult to re-
move it, moisten the paper with a little amount of
water. At this time never drip water other than the lens
portion.
4. The Metal Bearing
The metal bearing of Cu-compound sintered alloy is im-
pregnated with oil. However, supply oi! with the specified
oil Froil 0147P, at the pick-up replacing time. You do not
normally need lublicate the bushing in initializing time nor
supplying oil in running time.
5. Handling
Please handle the laser pick-up with holding by optical
base.
When either a part of human body or some other things
may happen to touch directly with the circuit part of either
the LD or PD PCB, it may cause deterioration, take careful
attention in handling this base.
6. Deterioration of Laser Pick-up
When difficulty occurs either in focus or tracking adjust-
ment nor able to adjust the focus or tracking, it seems that
the laser pick-up is deteriorated. In these cases, check a
value of laser diode current and give a decision for
deterioration.
7. Fundamental Deterioration Decision of Laser Pick-up
(1) If a voltage value across Pin @) of TP102 (+5V) and
Pin @ (iop) of Unit (2U-1454) is V1, the value of laser
diode current “‘iop 1’’ can be found a formula
iop it
(2) If a “iop” exceeds +10% compared with the IOP indi-
cation on the laser pick-up mameplate, there is a fair
chance for deterioration when it is checked under a
circumambient temperature 23°C.
(3) When the circumambient temperature changes +10°C,
“iop 1” will change 5%. The “‘iop 1°’ will also be
changed the passage of time.
(4) In case of the above conditions taking into considera-
tion and performed the adjustment in proper way, if
the HF level across pin (1) and across (HF) GND of
TP102 in 2U-1454 becomes 0.6V or less values; or a _
gitter occurs great, the laser pick-up is may be
deteriorated.

DISASSEMBLY
Top
Cove
4
anne
oe
e
Top
Cover
me
D
h
Slanty
U
d
1. Remove 4 screws on upper side of the Top Cover. ae ica
2. Pull the Top Cover slantwise upward with opening the
bottom parts slithgly right and left.
pen the lower part
right and left.
(Caution in assembling Top Cover)
1. Couple the hook in the center position of the Top Cover
with the notch part of Front Panel.
Top Cover
{
1
{
i
Front Panel
i
i
1
|
i
i
i
1
i
t
i
H
i
5
|
|
|
|
2.
Make
the
setting
as
no
clearance
between
Front
Panel
and
the
Top
Cover
viewing
from
the
upper
side
of the
setting.
Top Cover
| A
Front Panel

e Bottom Cover
1. Remove 9 screws holding the Bottom Cover and detach
; Bottom Cover
the Bottom Cover with the Insulaters attached. (Doubled)
Bottom Cover Holding
4
Screw
3
x
10
1 | NF laguietor
e Insulator and seperating the Double Bottom
Cover
Detach the Bottom Cover, and remove 8 screws securing
the Insulators to take out Insulators and separate
Doubled Bottom Cover,
Note: The hook may break if it is pushed top firmly.
A square hole on the front panel as a stopper to
: insert a G) screwdriver (approx. @6) not coming
into top far.
Insulator securing screw
Bottom Cover
(Doubled)
<a
Insulator
e Front Panel
1. Remove the Top Cover, and unfasten 3 screw (A)on the
upper side. ® ¥
2. Push and release 3 each hooke on the upper and lower af
sides. Then draw out the Front Panel frontward and de- Front Panel
tach it.
Hook

10
FG-610 LASER PICK-UP MECHANISM
How to move the Looder Frame manually
Manually push the lock arm (a) to the rightward and
pull the Loader frontward, then the Loader can be
open/close manually.
Whole body of the Laser Pick-up Mechanism
FG-610
Removing 4 screw makes possible to detach whole
body of the Laser Pick-up Mechanism from the Chassis.
Loader Frame
Remove whole body of the Laser Pick-up Mechanism
FG-610, pull the Loader Frame frontward, lift the
Loader Rail G4) upward and pull it out backward, then
the Loader Frame can be taken out.
Housing Assembly
Remove 4 screw Or = (a)3, and detach the Assembly
composed of Laser Pick-up Magnet, Yoke, Turntable,
and Spindle Motor.
By removing of screw @). the parts for mechanism
floating can be taken down as illustration shows.
When reassembling, remind that the Washer and
H-damper are commonly used, but the Coil Spring and
Collar are provided two types for maintaining equilb-
rium.
4630515 000
COIL SPRING (D)
463 0515 000
433 0484 004
COLLAR (A)
433 0485 003
COLLAR (B)
COIL SPRING (D)
433 0485 003
COLLAR (B)
.463 0514 001
COIL SPRING (C)
Coil spring (D) (used 3 each) is marked in red.
Coil spring (C) (used 3 each) is not marked.
Collar (B) (used 2 each) is made of brass (yellow).
Collar (A) (used 2 each) is made of brass plated with
nickel (white)
Laser Pick-up KSS-151A
(1) Detach the Housing Assembly illustration.
(2) Remove 2 screws @), unsolder 2 portions (8), and
detach the Speed Detection Coil.
(3) Next, remove 2 screws ) unsolder 2 portions (),
and detach the Drive Coil. And pull out the Shaft at
portion (E ), then the Lase Pick-up can be taken out.
Washer
Coil Spring (C), (D)
H-damper
Collar (A), (B)
om,