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harman/kardon
Model FL8300
5 Disc Compact Disc Changer
SERVICE MANUAL
CONTENTS
LASER BEAM SAFETY PRECAUTIONS ..............2 OTHER PRECAUTIONS .................................... 3 LEAKAGE TEST ................................................. 4 SPEClFlCATlONS ............................................... 5 CONTROL AND FUNCTIONS ............................ 7 BLOCK DIAGRAM ..........................................9 PICKUP REPLACEMENT................................11 CIRCUIT DESCRlPTlON .................................. 13 BULLETIN #9604.......................................... 22 BULLETIN #9607.......................................... 23 BULLETIN #9703...........................................24 TECH TIP TIP# HKTT2003-02............................ 26 TROUBLESHOOTING ....................................... 27 PRINTED ClRCUlT BOARDS ............................. 34 GENERAL UNIT EXPLODED VIEW I, II ............ ..37 GENERAL UNIT PARTS LIST...........................40 ELECTRICAL PARTS LIST ................................. 41 SEMICONDUCTOR IDENTIFICATION................ 44 PACKAGE ....................................................52 SCHEMATIC DIAGRAM ..................................... 53 WIRING DIAGRAM .............................. ............. 61
harman/kardon, Inc. 250 Crossways Park Dr. Woodbury, New York 11797
Rev1 3/2003
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harman/kardon
Service bulletin # 9604 rev1 - October 1998 To: All harman/kardon Service Centers Models: FL8300 Subject: Digital Output Level
Service Bulletin
This is considered a Minor Repair
The Digital Interface Standard recommends D/A converters have a minimum Input sensitivity of 200 mV. In early FL8300 production units, the Digital Output level was 240 mV ±10% peak to peak. Based on our research, we found that some D/A converters require more than 240 mV for intermittent free operation. In the event you receive a FL8300 from a consumer with the a complaint "Intermittent Sound from External D/A converter", check the serial number in the table below. If the FL8300 has a serial number higher than indicated in the table below, connect a properly working D/A converter to the Digital Output and verify interruption free operation. Also confirm the Digital Output level of the FL8300 is 500 mV ±10% Peak to Peak. If the FL8300 passes these two tests, advise the customer to have their external D/A converter and connecting cables checked. If the FL8300 has a serial number lower than indicated in the table below, perform the following modification: 1) With the unit plugged in and turned on, push the "open/close" button to extend the drawer fully; then turn the unit off and unplug it. 2) Open the top cover (6 screws). 3) Remove output board PCB3 from the rear panel (4 screws). This board can be pulled back and modified without completely removing it from the chassis. 4) Locate resistor R901, it may be a 680 ohm resistor or a jumper wire; replace in either case with a 0.47 uf capacitor h/k part# 5354-474593. 5) Locate R903 and change from 680W to a 4.7kW resistor - h/k part # 3029472970. Re-attach output PCB3 to the unit. 6) Connect a 75 Ohms cable to the digital output jack. Terminate this cable with a 75 Ohm load; connect an oscilloscope to the 75 Ohm termination resistor. While playing a CD, confirm the output of the signal is now 500 mV ±10% peak to peak. 7) Reassemble the FL8300 and test all functions.
Model FL8300 Serial number 120V IN0019-01001 to IN0019-19393 IN0019-19394 Serial number 230V IN0020-01001 to IN0020-04500 IN0020-04501 Status May have low digital output for some applications Factory Installed * Action Replace R901 with 0.47 uf mylar capacitor h/k part# 5354-474593 Replace R903 with 4.7k ohm resistor h/k part# 3029472970 NONE REQUIRED
FL8300
* Factory modification of the FL8300 starting with the serial numbers indicated in the above table consisted of:
R236: 1k Ohm R901: Jumper or 680 Ohm R903: Changed from 680 Ohm to 4.7k Ohm. Digital output level into 75 Ohms: 500 mV ±10% peak to peak.
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harman/kardon
Service bulletin # 9607-January 97 To: All harman/kardon Service Centers Models: FL8300 Compact disc changer
Service Bulletin
This is considered a Major Repair
Subject: Failure to play Multi-media CDs or skip data tracks _____________________________________________________________________________________ Early FL8300 CD Players used a micro-computer which could not read the table of contents (TOC) of certain multimedia CD's or skip data tracks on multimedia CD's. During two running production changes, new Microprocessor were installed which performs as shown in the table below:
Description IC112 CXP21320-322 DWP325 CXP82320-352Q DWP325A CXP82320-367Q DWP325B
Part Number 2138322197 2139322710 2139322722
Serial number Range120V IN0019-01001 to IN0019-29000 IN0019-29001 to IN0019-53790 IN0019-53791 to present production
Serial number Range230V IN0020-01001 to IN0020-05500 IN0020-05501 to IN0020-08510 IN0020-08511 to present production
Processor action Does not play Multimedia CD Plays Multimedia CD, Mutes at data track Plays Multimedia CD, Skips data tracks
Year/Month first used 95 October 96 July 96 November
In the event you receive a FL8300 from a consumer with a complaint "Player will not read or, loudspeakers make strange noise while playing multimedia CDs", replace IC112 with H/K Part number 2139322722. The IC can be identified by CXP82320-367Q DPW 325B printed on its case.
harman/kardon Incorporated, 250 Crossways Park Dr. Woodbury, New York 11797 (516) 496-3400
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harman/kardon
Service bulletin # 9703 June 1997 To: All harman/kardon Service Centers
Service Bulletin
This is considered a Major Repair
Models: FL8300 Subject: Dead unit, no display; Service upgrade
In the event you receive an FL8300 that is dead, and upon inspection R701 is damaged or an otherwise open circuit, perform the necessary steps listed below: Due to current surges, early models of the FL8300 could repeatedly damage R701 (either a 1 ohm resistor or 1.5A micro fuse depending on version). Along with the replacement of R701, the positive lead should be relocated on C125 to suppress any future current surges. Additionally, two capacitors, now designated as C907 & C908, (1uf/50v) should be added to the power supply output pins on regulator IC108 & IC111 on a unit serviced for any reason; these will add stability to help prevent oscillation. PROCEDURE: 1) Replace R701 with micro-fuse H/K # 5508722221, this component is on PCB7. 2) A PCB trace should be cut on the C125 (2200 uf/25v) positive lead on the main circuit board and an insulated jumper wire attached from that lead to the junction of D109/110. Additionally another insulated jumper will need to replace the trace that was cut. (see drawing) 3) Add C907 & 908, 1uf/50v , H/K/ # 3479310971, one on each output pin to ground on regulators IC108 and IC111. This is most easily accomplished by: Soldering one 1uf cap to the jumpers 153 & 197. Observe polarity; J153 is ground. Soldering one 1uf cap to the jumpers 185 & 186. Observe polarity; J186 is ground.
Model FL8300
Serial number 120V IN0019-72213 and below
Serial number 230V NOT REQUIRED
Action R701 is damaged or an open circuit
Correction Replace R701, re-route positive connection on C125, Add C907/908 NONE REQUIRED
FL8300
IN0019-72214 and above
NOT REQUIRED
Modified by factory
harman/kardon Incorporated, 250 Crossways Park Dr. Woodbury, New York 11797 (516) 496-3400
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harman/kardon Incorporated, 250 Crossways Park Dr. Woodbury, New York 11797 (516) 496-3400
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harman/kardon
For models: FL8300
TECH TIPS
TIP# HKTT2003-02
Troubleshooting tips and solutions to common service problems
Problem: "Carousel not stopping in the correct position, so disc can be clamped correctly". Check: 1) 6-conductor Ribbon cable connection to sensor board - check cable; clean, re-seat at both ends. 2) There is a post/standoff underneath the single center screw in the center of the carousel (under the plastic 1,2,3,4,5 cap). If that post/standoff is too long, it can cause the symptom. If the part is higher than the surface of the carousel in that area, the part needs to be shaved down so it's shorter. 3) Defective Roulette sensor (part# 2408001111) or Disc sensor (part# 2408210001).
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