DOWNLOAD Harman Kardon FL 8350 (serv.man10) Service Manual ↓ Size: 4.35 MB | Pages: 111 in PDF or view online for FREE

Power

Phones

Phones Level

FL 8350

Time

Repeat

Intro

Clear

Program

Open/Close

Pause

Play

Skip

Stop

Random

Search

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1

Disc Skip

5

4

MIN

INTRO

DISC

TRACK

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5

SEC

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11

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REPEAT 1A-B

RANDOM
ALL 1 DISCS

PROGRAM

The Harman Kardon

Model FL8350
COMPACT DISC CHANGER

DANGER: Invisible laser radiation when open and interlock failed or defeated.

AVOID DIRECT EXPOSURE TO BEAM.

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. SPECIFICATIONS AND FEATURES ..................... 7
4. ADJUSTMENT PROCEDURES ........................... 9
5. AUDIO  CHARACTERISTICS  TEST  PROCEDURE 

.............................................................................13

6. CIRCUIT DESCRIPTION  ....................................15
7. CRITICAL I.C. SPECIFICATION ........................ 26
8. PART LIST ......................................................... 47

9. TROUBLE SHOOTING GUIDE .......................... 58
10. BLOCK DIAGRAM ............................................. 63
11. ADJUSTMENT POINTS ..................................... 64
12. PCB LAYOUT ..................................................... 65
13. SCHEMATIC DIAGRAMS .................................. 94
14. DISASSEMBLY INSTRUCTIONS ...................... 99
15. GENERAL UNIT PARTS LIST ............................ 104

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

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.

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.

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.

To prevent fire or shock hazard, do not
expose the unit to rain or moisture.

3

: Press this switch 

to change the FL8350 from STANDBY 

to ON.  When the unit is first 

connected to AC power, the 

will turn Amber 

(STANDBY mode).  Press this switch 

to turn the unit ON; indicator will 

Green and the 

        

will illuminate.  Press the switch again 

to turn the unit off, in STANDBY mode.  

When the FL8350 is connected to a 

switched AC outlet, such as those 

found on the back of many audio 

products, when power is applied it will 

return to whatever state it was left in 

previously, whether ON or STANDBY.  

In this case, when always left ON, 

further use of the power switch is not 

needed.

: When the 

FL8350 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 FL8350'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.

: 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 FL8350 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 either side of 

this button to move to the next track      ,        

or to move back to the previous track 

on the disc being played.

: Press either side 

of this button to search forward       or 

backwards       through a disc to 

locate a particular portion of the 

selection of the disc being played.

: Press this 

button to change to the next disc.  If a 

disc position is empty, the FL8350 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 FL8350.

: The sensor 

behind this window receives 

commands from the remote control.  

Keep this area clear if you wish to use 

the FL8350 with a remote control.

Power

Phones

Phones Level

FL 8350

Time

Repeat

Intro

Clear

Program

Open/Close

Pause

Play

Skip

Stop

Random

Search

3

2

1

Disc Skip

5

4

MIN

INTRO

DISC

TRACK

1

3

2

4

5

SEC

1
6

16

11

2
7

17

12

3
8

18

13

4
9

19

14

5

10

20

15

REPEAT 1A-B

RANDOM
ALL 1 DISCS

PROGRAM

1

1

3

3

3

2

2

2

4

4

5

5

6

6

7

8

9

10

11

11

11

10

15

15

16

17

19

20

20

20

21

21

12

12

13

13

14

14

18

1

7

8

9

16

17

18

19

4

FL8350