FL 8370 (serv.man3) — Harman Kardon Audio Service Manual (repair manual)

Model
FL 8370 (serv.man3)
Pages
101
Size
3.28 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
fl-8370-sm3.pdf
Date

View Harman Kardon FL 8370 (serv.man3) Service Manual online

Power
Phones
Phones Level
FL 8370
Time
Repeat
Intro
Clear
Program
Open/Close
Pause
Play
Skip
Stop
Random
Search
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2
1
Disc Skip
5
4
Technical Manual
The Harman Kardon
Model FL 8370
COMPACT DISC CHANGER
DANGER: Invisible laser radiation when open and interlock failed or defeated.
AVOID DIRECT EXPOSURE TO BEAM.
CONTENTS
Parts and Service Office
250 Crossways Park Dr., Woodbury, N.Y. 11797
1112-FL8350 P9603 1200 Printed in Hong Kong
1.
LASER BEAM SAFETY PRECAUTIONS ............. 2
2.
CONTROL AND FUNCTIONS............................. 4
3.
SPECIFICATIONSAND FEATURES..................... 7
4.
AUDIO CHARACTERISTICS TEST PROCEDURE
.............................................................................9
5.
CIRCUIT DESCRIPTION ....................................11
6.
CRITICAL I.C. SPECIFICATION ........................ 18
7.
PART LIST ......................................................... 49
8.
TROUBLE SHOOTING GUIDE .......................... 64
9.
BLOCK DIAGRAM .............................................
70
12. DISASSEMBLY INSTRUCTIONS ....................
.... 89
13. GENERAL UNIT PARTSLIST .........................
..... 94
10. SCHEMATIC DIAGRAMS ..................................
71
11. PCB LAYOUT .....................................................
74
*
Harman/ kardon continually strives to improve its products.
The Fl8370 Compact Disc Changer design and
specifications are subject to change and may differ from the published specifications and descriptions, but will
always equal or exceed the original specifications unless otherwise stated.
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
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
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 consti-
tute 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, recep-
tacle 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 au-
tre sortie de courant, sauf si les lames prevent
etre inserees a fond-sans en laisser aucune
partie a decouvert.
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.
WARNING
To prevent fire or shock hazard, do not
expose the unit to rain or moisture.
3
Power Switch
Status-Mode 
Indicator
Information Display
Status-Mode Indicator
Status Mode Indicator
Headphones Jack
Headphones Level Control
Headphones Jack      
CD Drawer
Open/ Close
Time Button
Repeat Button
Intro Button
Clear Button
Program Button
Open/ Close Button
Random Button
Pause Button
Play Button
Stop Button
Skip Button
Search Button
Disc Skip Button
Disc Select Buttons
Information Display
Remote Sensor
: Press this switch 
to apply power to the Fl8370.  When 
the FL 8370 is first turned on by 
pressing this switch, the 
        will turn green, and the 
      will illuminate.  
Press the switch again to turn the unit 
off; the 
 will 
turn amber, indicating that the unit is 
in a Standby mode.  When the FL 
8370 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.
: When the 
Fl8370 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 mains supply.
: Connect a set 
of standard headphones to this jack 
for private listening.
: Turn 
this knob to increase or decrease the 
volume level for headphones 
connected to the FL8370's 
.  Note that 
changing this level will not change the 
sound level for the unit's main output, 
as that remains constant.
: This drawer holds the 
discs that will be played.  Press the 
 button       to open the 
drawer so that discs may be inserted.
: Press this button to 
select the time display.  In normal 
operation, this 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 this button again to view the 
total play time remaining for the disc 
in play. 
: Press this button 
once to constantly repeat the track 
currently being played.  Press it a 
second time to repeat the entire disc.
: Press this button to 
put the Fl8370 in the Intro Scan mode.  
When you press the 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.
: 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.
: This button is 
used to program the playback of a 
disc in a particular order.
: 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.
: Press this 
button to put a disc into play, and to 
have all of the tracks played in a 
random order.
: Press this button 
once to momentarily pause a disc.  
When the button is pressed again, the 
disc will resume play at the point it 
was paused.
: 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 to 
stop the disc currently being played.
: Press one side of 
this button to move to the next track       
or the other side of the button to 
move back to the previous track        
on the disc being played.
: Press one side of 
this button 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.
: Press this 
button to change to the next disc.  If a 
disc position is empty, the FL8370 will 
automatically search for the next 
position that contains a disc.
: Press one 
of these buttons to select the disc in a 
specific position in the CD drawer.
: This display 
provides details about the operation 
of the FL 8370.
: The sensor 
behind this window receives 
commands from the remote control.  
Keep this area clear if you wish to use 
the FL 8370 with a remote control.
HDCD Indicator: This LED will 
light automatically when a CD with 
HDCD encoding is playing.  No 
further action is needed to enjoy the 
benefits of HDCD.
Power
Phones
Phones Level
FL 8370
Time
Repeat
Intro
Clear
Program
Open/Close
Pause
Play
Skip
Stop
Random
Search
3
2
1
Disc Skip
5
4
1
3
2
4
5
6
7
8
9
10
11
11
10
15
16
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19
20
20
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12
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Front Panel Controls
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FL8370
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Page of 101
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Download Harman Kardon FL 8370 (serv.man3) Service Manual (Repair Manual)

Here you can view online or download Harman Kardon FL 8370 (serv.man3) Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair Harman Kardon FL 8370 (serv.man3) Audio. Information contained in Harman Kardon FL 8370 (serv.man3) service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).