Harman Kardon FL-8380 Service manual

harman/kardon

Model

FL8380

5 Disc Compact Disc Changer

SERVICE MANUAL

CONTENTS

LASER BEAM SAFETY PRECAUTIONS ……...2

OTHER PRECAUTIONS …...................…....… 3

SPECIFICATIONS .........................….….......... 4

FRONT PANEL CONTROLS……….. ... .…...... 6

REAR PANEL CONNECTIONS...........……...... 7

REMOTE CONTROL FUNCTIONS……….…….8
INSTALLATION/CONNECTIONS……………...10

OPERATION......................……………............ 11

BASIC TROUBLESHOOTING ..........……. ….. 13

TEST PROCEDURE…................…..……....… 14

CIRCUIT DESCRIPTION……….. ... ……........ 17

harman/kardon, Inc.

250 Crossways Park Dr.

Woodbury, New York 11797 Rev1 11/2003

BLOCK DIAGRAM …………………….………...21

GENERAL UNIT EXPLODED VIEW I, II .….. ..22

TECH TIP HKTT2003-06 ……………………… 26
DETAILED TROUBLESHOOTING …………… 27
SEMICONDUCTOR IDENTIFICATION..……... 33

PRINTED ClRCUlT BOARDS .....……… …..... 59

ELECTRICAL PARTS LIST .......…………….... 61

MECHANICAL PARTS LIST .......…..……….... 63

SCHEMATIC DIAGRAMS..................….…...... 68

PACKAGE …………………………………..……72

LASER BEAM SAFETY PRECAUTIONS

CLASS 1 LASER PRODUCT

CAUTION
Invisible laser radiation when the unit is open.
Do not stare into beam.

CAUTION: USE OF ANY CONTROLS, ADJUSTMENT, OR
PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN
MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.

Do not look directly at the laser beam
coming from the pickup or allow it to

FL8380

strike against your skin.

This compact disc player uses a pickup that emits a laser beam. The laser beam is emitted from the
location shown in the figure. When checking the laser diode, be sure to keep your eyes at least 1 foot away

from the pickup lens when the diode is turned on. Do not look directly at the laser beam.

CAUTION:

Using controls and adjustment, or doing procedures other than those specified herein, may result in
hazardous radiation exposure.

2

SAFETY PRECAUTIONS

WARNING

To prevent fire or shock hazard, do not

FL8380

This symbol is intended to alert the user to
the presence of uninsulated "dangerous
voltage" within the product's enclosure that
may be of sufficient magnitude to consti­tute a risk of electric shock to persons.

This symbol is intended to alert the user to
the presence of important operating and
maintenance (servicing) instructions in the
literature accompanying the appliance.

Caution: To prevent electric shock do not use this

(polarized) plug with an extension cord, recep­tacle or other outlet unless the blades can be
fully inserted to prevent blade exposure.

Attention: Pour prevenir les chocs electriques ne pas

utiliser cetre fiche polarisee avec un
prolongateur, une prise de courant ou une au­tre sortie de courant, sauf si les lames prevent
etre inserees a fond-sans en laisser aucune
partie a decouvert.

expose the unit to rain or moisture.

HANDLING LASER PICKUP

The laser diode in the optical system of this player can be damaged by electrostatic discharge from
your clothes or your body. Proper electrostatic grounding for service personal is required during servicing.

BEFORE REPAIRING THE COMPACT DISC PLAYER

Preparation

Human Body Grounding:
Many of the components used in this compact disc player, including the laser pickup, are sensitive to
electrostatic discharge. Service personal should be grounded with an electrostatic armband (1 Mohm).

Caution:
Static charge on clothing does not escape through a body grounding wrist band.
Be careful not to contact the pickup or electrical components with your clothing.

Workbench and Tool Grounding:
A properly-grounded electroconductive plate (1Mohm) or metal sheet should be fitted to the workbench
surface. Tools and instruments (such as soldering irons and scopes) should be grounded to prevent AC

leakage.

Note: Laser diodes are so susceptible to damage from static electricity that, even if a static discharge does
not ruin a diode, it can shorten its life or cause it to work improperly.

3

4

Technical Specifications

Signal Format

Sampling Frequency 44.1kHz
HDCD Processing Burr-Brown PCM1732
D/A Conversion Dual 18-Bit
Oversampling 8 Times

Discrete Analog Output Section

Error Correction CIRC System
Frequency Response 20Hz – 20kHz +0, –1dB
Total Harmonic Distortion (THD) <0.02% @1kHz
Dynamic Range >97dB
Signal-to-Noise Ratio >97dB
Channel Separation 80dB
Line-Level Output 1.0V RMS
Digital Output Coax

General

Power Requirement 120V/60Hz
Power Consumption 20 Watts
Dimensions

Height 5.1" (129mm)
Width 17.3" (440mm)
Depth 15.2" (386mm)

Weight 16.7 lbs (7.6kg)

Depth measurement includes knobs and buttons.
Height measurement includes feet and chassis.
All features and specifications are subject to change without notice.

Harman Kardon is a registered trademark,and Power for the digital revolution is a trademark,of Harman Kardon,Inc.

, HDCD

®

, High Definition Compatible Digital®and Pacific Microsonics™are either registered trademarks or trade­marks of Pacific Microsonics,Inc.,in the United States and/or other countries. HDCD system manufactured under license from
Pacific Microsonics,Inc.This product is covered by one or more of the following: In the USA: 5,479,168; 5,638,074; 5,640,161;
5,808,574; 5,838,274; 5,854,600; 5,864,311; 5,872,531; and in Australia:669114.Other patents pending.

FL8380

GENERAL INFORMATION

1. Power Consumption Operating <18W; Standby <5W

2. Power Super 230V AC 50Hz or 120V AC60Hz

3. Dimensions 440 x 130 x 386mm

4. Product Outlook Refer to attached diagram

5. Remote Unit harman/kardon remote code

6. Compliance Requirement i EMC EN55013, EN61000-3-2,

EN61000-3-3, EN55022

ii. CE (LVD EN60065)

iii. NRTL/C

iv. HDCD

7. Disc Changer Mechanism 5 disc carousel; Play 1 change 4

8. Sound Processor HDCD

9. CD Servo System Digital Servo, Auto Alignment

FL8380

AUDIO SPECIFICATION

Typical Limit

Output Level 1KHz 0dB (no HDCD) 1.0 Vrms +-1dB

Output Level 1KHz 0dB (HDCD output) 2.0Vrms +- 2dB

Frequency Response 20Hz~20KHz reference +0-1dB +0.5-1.5dB

THD 1KHz 0dB (30KHz Filter) 0.01% 0.05%

THD 1KHz 0dB (no any filter) 0.03% 0.08%

THD 20Hz~20KHz 0dB (30KHz Filter) 0.04% 0.05%

S/N 1KHz 0dB A-weighted (A Filter) 97dB 93dB

Dynamic Range 95dB 90dB

Channel Separation 1KHz 0dB(30KHz Filter) 85dB 80dB

Channel Balance +-0.5dB +-1.5dB

De-emphasis (5KHz,16KHz) +-0.5dB +-1.5dB

Headphone output specification under 32 ohm load

Maximum Headphone Output Level 1KHz 0dB 1.5Vp-p +-0.2V

Frequency Response (20~20KHz) +-1dB +-1.5dB

THD 20~20KHz 0dB (30KHz Filter) 0.1% 0.2%

5

6

1 Power Switch: Press this switch to apply
power to the FL 8380.When the FL 8380 is
first turned on by pressing this switch, the
Status Mode Indicator 2 will turn green,
and the Information Display # will light.
Press the switch again to turn the unit off; the
Status Mode Indicator 2 will turn amber,
indicating that the unit is in a Standby mode.
When the FL 8380 is connected to a switched
AC outlet,such as those found on the back of
many audio products,it will return to the
Standby mode when power is applied to the
switched outlet without any further press of the
switch.

2 Status Mode Indicator: When the
FL 8380 is in the On mode,this indicator will
glow green.When the unit is off, the indicator
will glow amber, indicating that the unit is still
connected to the AC main supply.

3 Headphones Jack:Connect a set of stan-
dard headphones to this jack for private listening.

4 Headphones Level Control:Turn this
knob to increase or decrease the volume level
for headphones connected to the FL 8380’s
Headphones Jack 3. Note that changing this

level will not change the sound level for the
unit’s main output,as that remains constant.

5 CD Drawer:This drawer holds the discs
that will be played. Press the Open/Close but­ton 6 to open the drawer so that discs may
be inserted.

6 Open/Close Button: Press this button to
open or close the disc drawer. DO NOT push the
drawer to close it or damage to the transport
mechanism may result.

7 Search Button: Press one side of this but-
ton to search forward

—

or the other side

of the button to search backwards

‚

through a disc to locate a particular portion of
the disc being played.

8 Skip Button: Press one side of this button
to move to the next track

—

Í

or the other
side of the button to move back to the previous
track

Í

fifi

on the disc being played.

9 Stop Button: Press this button to stop the
disc currently being played. (See page 11 for
more information.)

) Play/Pause Button: Press this button to
start the playback of a CD.If the CD drawer is
open, pressing this button will automatically
close the drawer. Press this button once during
play to momentarily pause a disc.When the
button is pressed again, the disc will resume
play at the point it was paused.

! Disc Skip Button: Press this button to
change to the next disc. If a disc position is
empty,the FL 8380 will automatically search for
the next position that contains a disc.

@ Disc Select Buttons: Press one of these
buttons to select the disc in a specific position
in the CD drawer.

# Information Display: This display
provides details about the operation of the
FL 8380.

$ Remote Sensor: The sensor behind this
window receives commands from the remote
control. Keep this area clear if you wish to use
the FL 8380 with a remote control.

Front Panel Controls

2

34

5

7

8

9)!

#

$@

6

1

FL 8380

Power Phones Phones Level

PLAY/PAUSE

123

45

DISK SKIP

STOP

SEARCH SKIP

››

ÍÍ

‹‹››



‹‹

1 Power Switch
2 Status Mode Indicator
3 Headphones Jack
4 Headphones Level Control
5 CD Drawer

6 Open/Close Button
7 Search Button
8 Skip Button
9 Stop Button
) Play/Pause Button

! Disc Skip Button
@ Disc Select Button
# Information Display
$ Remote Sensor

FL8380

Rear Panel Connections

DIGITAL
OUTPUT

AUDIO

OUTPUT

LEFT

RIGHT

REMOTE

IN

OUT

SERIAL NO.

AC INPUT

AC 117V / 60Hz

20W

MODEL NO.: FL 8380
HARMAN KARDON
NORTHRIDGE
CALIFORNIA, U.S.A.

MADE IN CHINA

PRODUCT COMPLIES WITH DHHS
RULES 21 CFR SUBCHAPTER J.
APPLICABLE AT DATE MANUFACTURED:

SHOCK HAZARD: DO NOT OPEN

WARNING: TO REDUCE THE RISK OF FIRE OR
ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE
TO RAIN OR MOISTURE.

This device complies with part 1.5 of the FCC Rules.
Operation is subject to the following two conditions:
(1) This device may not cause harmful interference,
and, (2) this device must accept any interference
received, including interference that may cause
undesired operation.

HDCD

®

and High Definition Compatible Digital

®

are registered trademarks of Pacific Microsonics, Inc.

AVIS: RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CLASS 1 LASER PRODUCT

LR46800

CAN/CSA-C22.2 No. 1-98

UL 1270

®

®

™ ¢ ∞

£

¡

¡ AC Power Cord: Connect this plug to an

AC outlet.If the outlet is switch-controlled, make
certain that the switch is in the ON position.

™ Coaxial Digital Output: Connect this
jack to the coaxial-digital input of a digital
audio/video receiver or an external digital-to­analog converter for direct access to the digital
signals of the FL 8380. DO NOT connect this jack
to the standard audio inputs of any device.

£ Remote Control Output: Connect
this jack to the input of another compatible
Harman Kardon remote controlled device to
have the remote sensor on the FL 8380 provide
signals to other products.

¢ Remote Control Input: Connect the
output of a remote infrared sensor or the
remote control output of another compatible
Harman Kardon product. This will enable the
remote control system to operate even when the
front panel Remote Sensor $ is blocked. It
will also allow use of the FL 8380 with optional,
external control systems.

∞ Analog Audio Outputs:Connect these
jacks to the analog CD audio inputs of your
receiver, surround processor or preamplifier.

7

¡ AC Power Cord
™ Coaxial Digital Output
£ Remote Control Output

¢ Remote Control Input
∞ Analog Audio Outputs

FL8380

8

a Disc-Select Buttons
b Numeric Buttons
c Clear Button
d Search Buttons
e Skip Buttons
f Stop Button
g Play Button
h Random Button
i Pause Button
j Program Button
k Time Button
l Intro Button
m Repeat Button
n Disc Skip Buttons
o Power On Button
p Power Off Button

Remote Control Functions

a

b

c

d

e

DISC NO.

21

345

TRACK NO.

456

789

CLEAR

0

SEARCH

SKIP

POWER

321

PROGRAM

RANDOM

OFFON

+

DISC
SKIP

–

REPEAT

INTRO

TIME

p
o

n

n

n

n

n

n

n

n

n

n

nnn

m

l

k
j
i
h
g
f

FL8380

FL 8380

9

Remote Control Functions

a Disc-Select Buttons: Press one of these
buttons to select the disc in a specific position
in the CD drawer.

b Numeric Buttons: Press these buttons to
select a specific track on a disc.The FL 8380
will immediately go to the track and begin to
play it.These buttons are also used to enter
track numbers into the memory for prepro­grammed-play lists.(See page 13 for complete
information on programming the FL 8380.)

c Clear Button: Press this button to
remove tracks from a programmed sequence.
Each press of the button will remove one track,
starting with the last track programmed to play.
(See page 13 for complete information on pro­gramming the FL 8380.)

d Search Buttons: Press these buttons
to search forward

—

or backwards

‚

through a disc to locate a particular portion of
the selection being played.

e Skip Buttons: Press one of these buttons
to move to the next track

—

Í

or to move back

to the previous track

Í

‚

on the disc being

played.
f Stop Button: Press this button to stop the

disc currently being played.
g Play Button: Press this button to start

the playback of a CD.If the CD drawer is open,
pressing this button will automatically close the
drawer.

h Random Button: Press this button to
play all of the tracks on a disc in a random
order. (See page 11 for more information.)

i Pause Button: Press this button once to
momentarily pause a disc.When the button is
pressed again, the disc will resume play from the
point at which it was paused.

j Program Button:This button is used to
program the playback of a disc in a particular
order. (See page 13 for complete instructions on
programming the FL 8380.)

k Time Button: In normal operation, the
display will show the running time of the track
being played. Press the button once to check
the time remaining for the track in play.Press
the button again to view the total play time
remaining for the disc in play.

l Intro Button: Press this button to put the
FL 8380 into the Intro Scan mode.When you
press this button,the unit will play the first 10
seconds of each track on the disc,and then move
to the next track.Press the button again to defeat
the function and continue full play of the current
track.(See page 12 for more information.)

m Repeat Button: Press this button once to
continuously repeat the track currently being
played.Press it a second time to repeat the entire
disc.(See page 13 for more information.)

n Disc Skip Buttons: Press these buttons to
change to the next disc.If a disc position is empty,
the FL 8380 will automatically search for the next
position that contains a disc.

o Power On Button:When the FL8380 is
plugged into an active AC outlet,press this button
to turn the unit on.The Status Mode Indicator

2 will turn green. If the unit is plugged into a

switched outlet,power must be applied to the
switched outlet in order for the Power Onbutton

o to be effective.
p Power Off Button: Press this button to

turn the unit off;the Status Mode Indicator

2

will turn amber, indicating that the unit is in a
Standby mode.

FL8380

10

To prevent possible damage to your speakers
and other components in your audio system, it
is important that ALL components, including the
FL 8380 and your receiver or preamp and
amplifiers,are turned off and unplugged from
their AC power source when installing any new
component.

Connecting the FL 8380 to your audio system is
simple.Using standard RCA-to-RCA intercon­nect cords,connect the left and right Audio
Output jacks

∞ on the rear panel to the CD

input jacks on your receiver, surround processor
or preamplifier.

If your system includes an optional external
digital-to-analog converter, or if you are using a
receiver or other processor that has the capabil­ity to decode PCM digital input signals,connect
the Coaxial Digital Output jack

™ to the

Coaxial Digital input on the decoder. Make cer­tain to use a coaxial-style interconnect cable,as
standard audio cables will not perform as well.

Install the two AA batteries supplied with the
FL 8380’s remote by turning the remote over so
that you are holding the bottom side up.Press
lightly on the embossed arrow on the cover and
gently slide the cover towards you in the direction
of the arrow.Insert the batteries inside the com­partment, being careful to follow the + and

–

polarity indications at the bottom of the compart­ment. Replace the cover by placing it on the
remote and sliding it back towards the top of the
remote.

NOTE: When replacing batteries, it is always a
good idea to replace both at the same time.
When the unit will not be used for an extended
period of time,it is also a good idea to remove
the batteries so that the potential for corrosion
or damage is avoided.

If the FL 8380 is installed behind a cabinet or
other obstruction that may block the path
between the front panel Remote Sensor

$

and the location of the remote,an optional
external IR sensor may be used. Connect the
sensor to the remote IR-In jack ¢ on the
rear panel.This jack may also be connected to
the IR-Output jack of another compatible
Harman Kardon component or a compatible IR­system-remote product.

You may also use the IR Sensor in the FL 8380 to
send commands to other compatible remote con­trolled products.Connect the remote IR-Out jack
£ to the input of the other product or system.

Connect the power to a nonswitched AC wall
outlet or to the accessory outlet on the rear of
another audio device in your system and you
are ready to go!

NOTE:When using the accessory outlet on
another product to power the FL 8380, make
certain that it has the compatibility to power a
device that draws at least 20 watts of current
in addition to being able to handle the require­ments of the other devices that may be plugged
into the accessory outlets.If you use a
“switched” outlet, it is important to remember
that the host product must be turned on in
order for the FL 8380 to operate.

Installation and Connections

FL8380

➞

11

Operation

Loading Discs

To load a disc,first turn the FL 8380 on, using
the Power Switch

1 or the Power Ono

button on the remote.Note that the Status
Mode Indicator

2 will turn green and the

Information Display

# will light.The word

disc will flash in the Information Display, and
the disc tray will automatically turn clockwise so
that the FL 8380 can sense which, if any, of the
disc positions already have a disc.

To load a disc,first press the Open/Close
button

6, taking care that the space in front

of the drawer is not obstructed.Note that if the
drawer is blocked when you attempt to open it,
it will automatically close within five seconds to
protect the mechanism.

Load discs in the tray with the printed (label)
side facing up toward you. Make certain that
the disc is centered in the tray.Either 5"
(12cm) or 3" (8cm) discs may be used.When a
3" (8cm) disc is played, it should be carefully
centered within the smaller ridges on the tray.
Only one CD can be placed in any position at a
time.When a 3" (8cm) disc is played,DO NOT
place a standard 5" (12cm) disc over the
smaller disc.

Note that each disc position has a number
embossed in the plastic tray.This corresponds to
the position this disc will occupy for playback
and programming.To make it easier to identify
each disc’s position,the disc position number
for the holder space that is in the center of the
disc tray will also appear in the Information
Display when the disc drawer is open.

To rotate the disc tray to another position,press
the Disc Skip button

!n.The tray will

revolve to the next slot and the Information
Display will indicate the position number for
the slot in the middle of the tray.

To close the disc drawer, press the Open/
Close button

6.When the drawer closes,the

disc that was last in the center position on the
tray will be readied for play.Its number will
appear in the Information Display and a red
icon will flash to the right of the disc number.
The icons for all other tray positions that have a
disc will be a blue line.If the center disc posi­tion is empty when the drawer is closed,the
unit will search for the next position with a
loaded disc and place it in the Ready mode.

The drawer may also be closed and the FL 8380
put into play by pressing the Play/Pause
button

)g.This will put the disc in the cen-

ter position into the Play mode.
To close the drawer and play a specific disc,

press the Disc Select button

@acorre-

sponding to the tray position number for the
disc you wish to play.

When the disc drawer closes,the Information
Display will briefly display the disc number, the
total number of tracks on the disc and the
disc’s total running time. After five seconds, the
display will indicate the disc number that is in
the play position, both by a flashing red icon to
the right of the disc number and the wording in
the display,such as

disc 5.The total number

of tracks on the disc will light at the far right
side of the display.

To remove a disc from the player, press the
Open/Close button

6.The drawer will open,

allowing the disc to be removed. Press the Disc
Skip button

!n to rotate the disc carousel

tray to reach discs that may be covered.When
a disc does not occupy a numbered tray,and
the sensor detects no disc present, the disc
number will drop from the display.

Upon placing a disc in the unoccupied tray,the
disc number will reappear when detected by
the sensor mechanism.

Disc-Handling Notes

When loading or unloading discs,it is best to
hold them by the edges.

While compact discs are very reliable,rough
handling may damage them.Avoid scratching
the bottom (nonprinted) side of discs,and any
handling that will leave fingerprints.

To avoid damage to the disc and player, always
seat discs so that they are centered in the tray.

Do not lift the player while the disc tray is
opening or closing, as this may cause the discs
to unseat from the tray and possibly jam.

Note: Always remember to remove all discs
from the player before moving or repacking it.

Labeled surface

Recorded surface

FL8380

12

Normal Play

The FL 8380 provides a variety of ways to select
discs for playback.

To play all of the tracks on each disc in order,
starting with the first track on the disc currently
in the play position, and proceeding through
each disc that has been loaded, press the
Play/Pause button

) on the front panel,or

the Play

g button on the remote.

To start play on a specific disc,press the Disc
Select button

@athat corresponds to the

desired disc’s position in the disc tray. If no disc
is found in the selected position, the unit will
search for the next disc.

When a disc is in play,the Information Display
will show a play indicator

fl

.The track being
played will show both as a large number in the
middle of the display,and as a smaller, flashing
number at the right side of the display.The
elapsed time of the track being played will
appear in the display.

As the disc plays,the track numbers will
change,and the time will reset to at
the start of each new track.To momentarily
pause the play of a disc, press the Play/Pause
button

) on the front panel,or the Pause i

button on the remote.Note that a Pause indica­tion

±

will appear in the display to remind you
that the disc is paused. Press either the Play
button (Play/Pause on front panel)

)g or

the Pause button

i to resume normal play.

You may also select a track on any disc in play
by entering the desired track number directly
using the Numeric buttons

b.Note that two

buttons must always be pressed when entering a
track number. Thus,when entering track numbers
1 through 9, press the “0” button first and then
the number for the desired track.In all cases,the
two buttons must be entered within three sec­onds of each other.

To stop the disc,press the Stop button

9f.

When the stop button is pressed, the display
will again show the total number of tracks and
total running time of the last disc played.

Random Play

The FL 8380 includes three Random Play modes
that enable you to let the machine select the
tracks to be played in a random order.The
Random modes may be started at any time by
pressing the Random button

h on the

remote when the unit is already in Play mode.

Random 1:To play all the tracks on a disc in
random order, press the Random button

h

ONCE so that the RRAANNDDOOMM indicator lights.The
FL 8380 will play the tracks on the disc in an
order selected by the unit’s microprocessor and
stop play when all of the tracks have been
played once.

Random,All, Sequential:When the Random
button

h is pressed TWICE, the RRAANNDDOOMM and

SSEEQQUUEENNTTIIAALL indicators will light. In this mode,

all tracks on the current disc will be played in
random order, and then the unit will advance to
the next disc in order and play all tracks on that
disc randomly.When each disc is finished, the
next disc will play its tracks in random order
until all discs have been played.After the last
disc plays,the unit will stop.

Random,All Tracks/Discs:When the Random
button

h is pressed THREE times,the

RRAANNDDOOMM, AALLLL and DDIISSCC indicators will light. In

this mode,the FL 8380 will select two tracks
from the disc in use and play them randomly.
After these two tracks play,another disc will be
randomly selected and two tracks will play from
that disc.This pattern of a randomly selected
disc, and the play of two random tracks from
each disc, will continue until all tracks on all
discs have been played.At that point the unit
will stop.

HDCD

HDCD,which stands for High Definition
Compatible Digital

®

, is a sophisticated process
that enables the FL 8380 to deliver outstanding
digital-to-analog decoding, no matter what
type of CD is played.

When a disc with the HDCD logo is played,
the FL 8380 is able to take advantage of the
special recording process that is used in the
creation of HDCD discs.Although HDCD discs
are playable on any CD player, when they are
used in a unit such as the FL 8380, the special
circuitry delivers audio with extraordinary
fidelity,stunning resolution and the highest
possible overall quality.The HDCD process
effectively cancels the additive and subtractive
distortions that are present in other recordings.

No special adjustment is required to play an
HDCD disc. Simply play the disc as you would
any other CD,and the FL 8380 will automati­cally sense that it is an HDCD recording.The

indicator will light in the
Information Display # on the front panel
to remind you that an HDCD disc is playing.

It is important to note that the HDCD process is
completely compatible with standard recordings.

Its high-quality digital-to-analog circuitry pro­vides enhanced playback from all standard CD
audio discs.

Play Exchange

The FL 8380’s Play Exchange feature allows you
to change discs while the machine is playing.
Using this feature,you can have uninterrupted
play of an unlimited number of discs,since the
drawer may be opened and discs changed
while another disc is playing.

To use the Play Exchange function,simply press
the Open/Close button

6 at any time while

the unit is in the Play mode.The disc drawer
will open and two discs will be available for
change.Replace either disc, or both, as desired.
To reach the other two discs,press the Disc
Skip button

!n.You may now remove and

change either of these two discs.
When you have finished making any disc

changes,press the Open/Close button

6.The

drawer will close and play will continue with
normal functions.

Time Display

The FL 8380’s time display is capable of show­ing a wide range of information about a CD.

In normal operation,the display will show the
total running time of the CD that is currently
being played. Each time the track changes, the
time display will reset to and begin to
increase again as the disc plays.

To view the time remaining on an individual
track,press the Time button

k on the remote

control ONCE.The display will now show the
time left in the track currently playing.

To view the total playing time remaining on a
disc, press the Time button

k on the remote

control TWICE.In this Time Display mode the

TTRRAACCKK indicator will show the tracks remain-

ing, differing from the usual display of the track
being played.

Headphone Listening

You may listen to the output of the FL 8380
through headphones by plugging any head­phones with a

1

⁄

4

" headphone plug or adapter

into the front-panel Headphones Jack

3.

The volume of the headphone output can be
adjusted with the Headphones Level

Control

4. Note that changing the head-

phone level will not change the volume for the
main audio output.This is a fixed output and it
is changed using the volume control on your
receiver, preamplifier or surround processor.

Operation

FL8380

13

Troubleshooting Guide

SYMPTOM POSSIBLE CAUSE SOLUTION

No lights on front panel • No AC power • Make certain that the AC power cord is plugged into a live outlet
Remote does not appear to operate • Main Power Switch turned off • Turn on Main Power Switch

• Weak batteries • Install fresh batteries, observing polarity indications

• Blocked sensor • Remove obstructions from the front panel sensor, or connect
a remote sensor to the Remote-In jack on the rear panel

Front panel lights but CD does not play • Disc upside down • Turn CD over so that label side faces up

• Moisture inside unit • Leave the unit turned ON for 30 minutes to allow
moisture to evaporate

Play indicator lights but no sound is heard • Receiver or preamp and amp • Turn on all necessary equipment

not turned on

• Poor connections • Make certain connections are secure and made to

• Wrong source selected the correct (e.g., CD) input

• Select CD source on receiver or preamp

Sound skips or stutters during play • Disc may be damaged • Try another disc

• Surface vibrations • Isolate the unit from vibration by placing it on a firm surface
or move it further away from speakers

Sound is continually distorted • Incorrect input • Make certain that the FL 8380 is connected to a line-level

audio input, NOT a digital audio or phono input

FL8380

Audio Characteristics Test Procedure

Test Equipment

1. 3346 CD Player Evaluating Filter x 2 (NF Electronic Instrument)

2. VP7722 Panasonic Audio Analyzer

3. Sony YEDS18 Test CD disc

Procedure

Equipment Setup

1. The audio output of the CD player under test is connected to the CD filter L
& R inputs.

2. The outputs from the filter are connected to the Audio Analyzer.

Check the output Voltage

1. Set the mode of the filter to ‘ THRU’

FL8380

2. Set the mode of Audio Analyzer to ‘ LEVEL’ mode

3. Select track 2 of the test disc and play the CD disc

4. The output voltage and gain of the R & L channels are taken by pressing
the respective buttons on the control board of Audio Analyzer.

Frequency Response

1. Set the mode of the filter to reference level mode.

2. Select the track 3, 4, 5, and 6 of the test disc and run it under ‘ Play’ mode.

3. Check the output of the R & L Channels

Total Harmonic Distortion

1. Set the mode of the filter to ‘ DIST/CH-SP’ mode

2. Set the audio analyzer to ‘ DIST’ mode.

3. Set the unit of the audio analyzer to ‘ %’ mode

4. Select the track 2, 4, and 5 on the test disc and run them under ‘ PLAY’
mode

5. Check the % of each R & L channels

14

Signal to Noise Ratio

1. Set the mode of the filter to ‘ S/N’ mode

2. Play track 2 of the test disc

3. The unit of the audio analyzer is set to dB mode

4. Press the S/N key on the control panel of the audio analyzer

5. Play track 7

6. Measure the data of S/N ratio

Dynamic Range

1. Set the mode of the filter to ‘ D-Range’ mode

2. Set the audio analyzer to ‘ DIST’ Mode

3. Set the unit of the audio analyzer to ‘ dB’ mode

4. Play track 17of the test disc

5. The dynamic range should be |A| + 60dB

FL8380

Channel Separation

1. Set the mode of the filter to ‘ DIST/CH-SP’ mode

2. Set the audio analyzer to ‘ LEVEL’ mode

3. Play the tracks 8, 9, 10 & 11

4. The measured results is the difference between L & R channel

De-emphasis

1. Press the ‘ THRU’ button of the CD filter

2. Play the track 2 of the test disc

3. Press the ‘ Relative Level’ and make it ‘ ON’

4. Select the track 12 and 13 and measure the L & R channels value

15

FL8380 Preliminary Production Specification

Test Disc Specification

Typical Limit

Black Dot TCD 725B 1000um 600um

Interruption MCD-131 900um 600um

Finger print 75um 65um

Vertical Deviation MCD-151 0.92mm 0.92mm

Eccentricity TCD 712 140um 140um

8cm test disc TCD 783 Last Track Last Track

Access Time 1

st

to last track YEDS18 4 sec 10 sec

FL8380

16

FUNCTION DESCRIPTION

32

31

2821302325

24

GCTRL

To Focus System

TBAL

Subtraction

R10

TENC8TEOUT

V

GCTRL

C2

C15C5R5

V

REF1VREF2

R15

R14

V

TBAL

Tracking System

E

A B
C D

FL8380

F

PDIC

The tracking error output of E and F is given to Pin 25 (TEOUT). C8 is required for
oscillation-proof. R10 is chosen such that TEOUT of Pin 25 become 1.4Vp-p.

During alignment procedure, the DSP IC (MN662790) will adjust the tracking balance
voltage V

from Pin 31. V

TBAL

varies with reference to the center voltage V

TBAL

(=1.65 V)

REF2

within ±0.5 V.

The tracking gain will change according to the type of disc. For normal disc or CDR disc,
V

GCTRL

is set to V

; for CDRW disc V

REF2

focus gain is changed too.

is set to V

GCTRL

17

- 0.75 V. At the same time, the

REF2

Focus System

36

34

282927

26

GCTRL

FBAL

Subtraction

R7

FENC4FEOUT

V

GCTRL

C2C3R6

V

FBAL

35333

5

C35

C47

R27

R21

R20

E

A B
C D

F

FL8380

PDIC

The focus error output of A, B, C and D are given to Pin 27. C4 is required for oscillation­proof. R7 is set such that FEOUT of Pin 27 becomes 1.46 Vp-p.

During alignment procedure, the DSP IC (MN662790) will adjust the focus balance voltage
V

from Pin 30. V

FBAL

varies with reference to the center voltage V

FBAL

(=1.65 V) within

REF2

±0.5 V.

The focus gain will change according to the type of disc. For normal disc or CDR disc,
V

GCTRL

is set to V

; for CDRW disc V

REF2

is set to V

GCTRL

- 0.75 V. At the same time, the

REF2

tracking gain is changed too.

18

RF, EQ, AGC

36

34

GCTRL

V

GCTRL

C2

35333

5

C35

C47

R27

R21

R206EQ

AGC

8910

17

RF

ENV

11

12

V

CC1

ARF

V

CC1

NRFDET

ENV

28

C29

C39

C28

C38

RFOUT

FL8380

DETECTION

DETECTION

The signals A, B, C and D input from PDIC are composed into the RF signal by the RF
Addition Amp, then output from RFOUT of Pin 5. This Amp is designed so that RFOUT is
about 0.5 Vp-p for normal CD disc (about 0.4 Vp-p for CDR and 0.12 Vp-p for CDRW).

RF signal from Pin 5 is then input to the AGC block through the EQ block (the EQ
characteristic is fixed for single speed operation in this design). It is then gain-controlled
and output to Pin 10 ARF. The AGC block maintains the output level of ARF to about

1.0Vp-p for all types of disc. C38 connected to Pin 9 is for the AGC loop filter.

The RF Detection block detects the amplitude of the RF signal inputted from the EQ block.
Inputted RF signal is detected after passing through a high-pass filter. Detection level is
changed in accrodance with the voltage of GCTRL Pin 28.

The ENV detection block detects the fluctuation of the 3T-composition in the RF signal
which is needed for focus balance adjustment. C39 connected to Pin 11 forms a filter for
detecting the signal fluctuation. The ENV output signal from Pin 12 is filtered by C29.

19

19LD2

1

V

CC1

PD

170mV

LASER UNIT

C33

R18Q1LDON

20

R

V

CC1

R

R/2

V

REF1

22

R

V

CC2

R

R/2

V

REF2

FL8380

APC

The laser diode has large negative temperature characteristic in its optical output when
driven with a constant current on laser diode. Therefore, the output on processing monitor
photo diode, must be a controlled current for getting regular output power, thus the APC
(Auto Power Control) circuit is composed.

Reference Power Supply

A reference power supply for servo is built-in. The current capacity of the reference supply
is about 3 mA.

V

REF1

= 1/2 V

= 2.5 V

CC1

V

= 1/2 V

REF2

where V

= 1.65 V

CC2

= 5 V and V

CC1

= 3.3 V

CC2

20

21

FL8380

FL8380

22