Harman Kardon FL8550 Service Manual

5 disc compact disc changer

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Owner's manual (20 pages)

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Summary of Contents for Harman Kardon FL8550

Page 1: Table Of Contents
FL8550 Model 5 Disc Compact Disc Changer Service Manual CONTENTS LASER BEAM/SAFETY PRECAUTIONS ..…..2 ADJUSTMENT PROCEDURES……….……...21 SPECIFICATIONS ..………………. …………..…..4 AUDIO TEST PROCEDURE…………………..25 CONTROLS..………………………………....5 CIRCUIT DESCRIPTIONS ....……..27 REAR PANEL CONNECTIONS…………………..6 I.C. SPECIFICATIONS ..……...………..35 REMOTE CONTROL..…………………….. …..7 ELECTRICAL PARTS LIST ..………………...
Page 2: Laser Beam/Safety Precautions
FL8550 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.
Page 3: Safety Precautions
FL8550 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...
Page 4: Specifications
FL8550 GENERAL INFORMATION 1. Power Consumption Operating < 18W; Standby < 5W 2. Power Supply 230VAC 50Hz or 120VAC 60Hz 3. Dimensions 440 x 130 x 386 mm 4. Product Outlook Refer to attached diagram 5. Remote Unit RT03, harman/kardon remote code 6.
Page 5: Controls
: Press this button to Search Button : Press either side will illuminate. Press the switch again put the FL8550 in the Intro Scan of this button to search forward to turn the unit off, in STANDBY mode. mode. When you press the button,...
Page 6: Rear Panel Connections
Coaxial Digital Output Connect this jack to the coaxial digital input of an external digital-to-analog converter for direct access to the digital signals of the FL8550. DO NOT connect this jack to the standard audio inputs of any device. Remote Control Input Connect the output of a remote infrared sensor or the remote control output of another compatible Harman Kardon product.
Page 7: Remote Control
Intro Button: Press this button to put the FL8550 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.
Page 8: Troubleshooting Guide
• 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 FL8550 is connected to a line- level audio input, NOT a digital audio or phono input.
Page 9: Service Bulletin H/K9901
D2 is insufficient, D2 will not saturate and the display will read “No disc”. In the event you receive an FL8350 or FL8550 with the complaint: Display reads “No disc” but a disc is in the tray, perform the modification as listed below: 1) Lay the unit on a padded surface.
Page 10: Service Bulletin H/K2000-09
Models: FL8350/FL8550 Subject: Carousel does not stop In the event you receive an FL8350 or FL8550 with the complaint: “The carousel does not stop at a given disc position, …or passes disc positions intermittently”, perform the modification listed below: 1) Lay the unit on a padded surface.
Page 11: Tech Tip Hktt2003-06
TECH TIPS Troubleshooting tips and solutions to common service problems For models: FL8350/FL8550/FL8380 TIP# HKTT2003-06 Complaint: Unit Will Not Play or Recognize a Disc, “Skipping”. Possible Problem: Misalignment of the top cover and rear panel. To test, attempt to play the unit with the top cover OFF. If symptoms persist, troubleshoot further. If the unit will play with the cover OFF, the problem is caused by a misalignment of the top cover and the rear panel.
Page 12: Disassembly Instructions
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Page 17: Exploded Views
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Page 18 6083-510001-002-02 HARMAN/KARONT FRONT PANEL W/SILKCREEN&P 6083-510003-000-01 HARMAN/KARDON FL8550 DISPLAY LENS (W SILKSCREEN) 6083-510004-000-01 KNOB, DISC PAINTED 9485-801000-261 FL8550 DISPLAY BOARD (VFD) ASSY REV A 6083-510010-000-01 HARMAN/KARDON FUNCTION KNOB (W SILKSCREEN&PAINTED) 6083-510009-000-01 HARMAN/KARDON 'EJECT' KNOB (W SILKSCREEN&PAINTED) 6583-510001-001 BOTTOM CABINET 6029-010012-000-01...
Page 19 FL8550 5CD EXPLODED DRAWING LIST SEQ NO. PART NO. DESCRUPTION QTY. 6005-050050-007 BASE, 5CD 6005-050010-004 BRACKET, CD MECHA 3009-901000-000 SANYO CD MECHANISM CD90V1 6590-050001-001 CD90 CHUCKING METAL PLATE 6600-140001-000 CD90F01 CHUCKING METAL PLATE FELT RING 6600-020200-002 PIN, ROUND 6005-050008-001 CONTROL CAM 7105-010005-030 WASHER LOCK 5X10X0.5MM...
Page 20 FL8550 6600-020297-000 PIN ROLLER LOCK 6505-050005-001 BRACKET ROLLER 9400-501000-132 5CD SENSOR BOARD ASSY REV B 7103-006005-130 WASHER 3X6X0.5MM CUT 6600-010213-000 5CD SPRING, GEAR BLOCK ARM 6600-010212-002 5CD SPRING, GEAR BLOCK 7002-620002-062 SCREW M2.6X20 P TYPE W/H ZN 6005-050005-001 GEAR BLOCK ARM...
Page 21: Adjustment Procedures
FL8550 ADJUSTMENT PROCEDURES Reference Disk for adjustments: Sony YEDS - 18 Mode: FL8550 Testing Equipment: i. 5020 Frequency Response Analyzer ii. Oscilloscope iii. Frequency Counter iv. Frequency Generator (Kenwood AG-203A) Adjustment Procedure (A) Focus Adjustment i. Connect Jitter Meter between TP1 (R51) and Vref (J6), then play a CD disc.
Page 22 FL8550 (B) Tracking Adjustment i. Connect oscilloscope to the test point TP3 (KA9220C) and Vref (J6). ii. Press PLAY button and adjust VR4 to maximum and press SKIP DOWN button to make it Tracking off. iii. Adjust VR2 to get symmetrical waveform height. After adjust VR4 to center.
Page 23 FL8550 (C) Focus Servo Loop Gain Adjustment Connection point Settings State Adjustment Location U1 (KA9220C) 1. Oscilloscope Probe: x 10 Play State Adjustment VR3 Pin 57 (R11) 2. Oscilloscope setting Pin 56 (R12) CH1: 20mV/division See fig 3 CH2: 10mV/division Remark: X-Y mode Set the frequency generator output to 1KHz and 100mv.
Page 24 FL8550 (D) Tracking Servo Loop Gain Adjustment Connections point Settings State Adjustment location U1 (KA9220C) 1. Oscilloscope probe: X10 Play State Adjustment VR4 Pin 53 (R13) 3. Oscilloscope setting Pin 52 (R14) CH1: 50mV/division See fig.4 CH2: 20mV/division Remark: X-Y mode Set the frequency generator output to 1KHz and 100mV.
Page 25: Audio Test Procedure
FL8550 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 &...
Page 26 FL8550 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.
Page 27: Circuit Descriptions
FL8550 Circuit Description 1. RF AMP BLOCK The KA9220 is designed for 3-spot type optical pick-up assembly. The photo detector is composed of 6 light sensor (A through F). The photo detector A, B, C and D detect audio modulation signal on the disc and generate focus error signal.
Page 28 FL8550 2. TRACKING ERROR AMPLIFIER The output of photo detector F is directed to the (-) Input of F I – V AMP and out of photo detector E is directed to the (-) input of E I – V AMP.
Page 29 FL8550 3. FOCUS ERROR AMPLIFIER The focus error amp is the difference between RF I – V AMP (1) output V and RF I – V AMP (2) output . This two (V ) signals are each applied to the (-) and (+) input of focus error amp. As the result of differential voltage, Focus error signal is appeared at FE1 Pin (Pin57).
Page 30 FL8550 5. MIRROR CIRCUIT After RF input signal is amplified by Mirror amp, it is held in Bottom and Peak hold circuit. Such a hold is determined by the time constant. Envelope signal A (demodulated to DC) is two-thirds of the peak value of this signal.
Page 31 FL8550 The bottom hold has had two time constant of long and short, after than the RFI signal inverted. The short time constant of bottom hold is generated shorter than 0.1m sec of disc mirror defect, and long time constant is generated by previous mirror level. Mirror defect detection signals are generated by differentiation on Capacitor Coupling, and then transfer level.
Page 32: Servo Block
FL8550 SERVO BLOCK 1. FOCUS SERVO When the defect signal is detected, the focus servo Loop is isolated. At this time, the focus servo error output is outputted through low pass filter formed by connecting a capacitor (0.1µF) between the built-in 470KΩ...
Page 33 FL8550 While the focus search is operating, the FS4 switch is ON and then focus error signal is isolated, accordingly it is outputted by FSEO Pin (Pin48). When the FS2 switch is ON, the focus servo Loop is on and then focus error is outputted through the focus servo Loop.
Page 34 FL8550 3. SPINDLE SERVO AND LOW PASS FILTER The 0.033nF and 20KΩ connected to SMEF (Pin 25) form the 200Hz low Pass filter. And the carrier component of spindle servo error signals is eliminated. In the CLV – S mode, SMEF becomes L and...
Page 35: Specifications
FL8550 KA9258D 4-Channel Motor Driver Features Description • 1-phase, full-wave, linear DC motor driver The KA9258D is a monolithic integrated circuit, suitable for • Output gain adjustable 4-CH motor driver which drives tracking actuator, focus • Built in OP-amp actuator, sled motor and loading motor of CD/CD-ROM/ •...
Page 36 FL8550 Pin Definitions Pin Number Pin Name Pin Function Description DO1.1 Drive output DO1.2 Drive output DI1.1 Drive input DI1.2 Drive input Regulator Regulator output MUTE Mute GND1 Ground 1 DI2.1 Drive input DI2.2 Drive input DO2.1 Drive output DO2.2...
Page 37 FL8550 Internal Block Diagram − − − Level Level shift shift − − Regulator Mute Level Level shift shift − − Pin Assignments (GND) KA9258D (GND)
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Page 50: Typical Application
FL8550 KA8301 Bi-Directional DC Motor Driver Features Description • Built-in brake function. The KA8301 is a monolithic integrated circuit designed for • Built-in element to absorb a surge current derived from driving bi-directional DC motor with braking and speed con- changing motor direction and braking motor drive.
Page 51 FL8550 Pin Assignments KA8301 OUT1 OUT2 Pin Definitions Pin Number Pin Name Pin Function Description Ground Output 1 OUT1 Phase compensation Motor speed control Input 1 Input 2 Supply voltage (Signal) Supply voltage (Power) Phase compensation Output 2 OUT2...
Page 52 FL8550 ® PCM1702P PCM1702U BiCMOS Advanced Sign Magnitude 20-Bit DIGITAL-TO-ANALOG CONVERTER FEATURES DESCRIPTION ULTRA LOW –96dB max THD+N The PCM1702 is a precision 20-bit digital-to-analog (No External Adjustment Required) converter with ultra-low distortion (–96dB typ with a full scale output). Incorporated into the PCM1702 is...
Page 53 FL8550 SPECIFICATIONS All specifications at 25°C, ±V = ±5V unless otherwise noted. and +V PCM1702P/U, -J, -K PARAMETER CONDITIONS UNITS RESOLUTION Bits DYNAMIC RANGE, THD + N at –60dB Referred to Full Scale, with A-weight DIGITAL INPUT Logic Family TTL/CMOS Compatible Logic Level: +2.4...
Page 54 FL8550 ABSOLUTE MAXIMUM RATINGS (DIP Package) ABSOLUTE MAXIMUM RATINGS (SOP Package) Power Supply Voltage ..............±6.5VDC Power Supply Voltage ..............±6.5VDC Input Logic Voltage ........... DGND—0.3V~+V +0.3V Input Logic Voltage ........... DGND—0.3V~+V +0.3V Operating Temperature ............. –25°C to +85°C Operating Temperature ............. –25°C to +85°C Storage Temperature ............
Page 55: General Description
FL8550 ® PMD-100 PMD-100 Process Decoder General Description SPECIAL FEATURES ® The PMD-100 HDCD Process Decoder is a sophisticated Automatic HDCD Process Decoding 0.6 micron CMOS Integrated Circuit that performs pre- cise decoding of HDCD encoded recordings. The Decoder When the PMD-100 detects HDCD ®...
Page 56: Additional Features
FL8550 ® PMD-100 PMD-100 Process Decoder Additional Features SPECIAL FEATURES (Cont.) • 24 bit or greater accuracy provided for all opera- DAC Optimize Operating Modes tions. To achieve the best possible performance from a variety of • Up to 24 bit input data passed without truncation.
Page 57 FL8550 ® PMD-100 PMD-100 Process Decoder Pin Description (Stand-Alone Mode) - Pin 9 Low ( I = Input, O = Output. All input levels TTL compatible except XTI which must be CMOS level. No inputs have pull-ups. All outputs are full CMOS levels. ) DIN (I) Serial data input.
Page 58 FL8550 HD6433724E93F MICROPROCESSOR Overview The H8/300L Series is a single-chip microcomputer (MCU: microcomputer unit), built around the high-speed H8/300L CPU and equipped with peripheral system functions on chip. The H8/3724 and H8/3754 Series are single-chip microcomputers in the H8/300L Series equipped with high-voltage pins. Their on-chip peripheral functions include a...
Page 59 FL8550 Internal Block Diagram...
Page 60 FL8550 Pin Arrangement...
Page 61: Electrical Parts List
FL8550 REF. NO. PART NO. DESCRIPTION QTY. FL8550 MAIN BOARD RESISTOR R32/33/35-37/52/59- 1001-001316-000 CARBON FILM RESISTOR 100 OHM 1/6W ±5% 63/79/80. R1/11/13/27/48/49/50. 1001-002316-000 CARBON FILM RESISTOR 1K OHM 1/6W ±5% R20/21/26/42/110. 1001-003316-000 CARBON FILM RESISTOR 10K OHM 1/6W ±5% R5/15/18/24/25.
Page 62 FL8550 C39/-39/42/75/76/100 1102-221014-000 ELECT. CAP. 220uF/16V ±20% C95/96/101 1102-222014-000 ELECT. CAP. 2200uF/16V ±20% C53-60 1102-337024-000 ELECT. CAP. 3.3uF/25V ±20% C11/28/43 1102-470014-000 ELECT. CAP. 47uF/16V ±20% C41/48/87-90 1102-471014-000 ELECT. CAP. 470uF/16V ±20% 1102-477044-000 ELECT. CAP. 4.7uF/50V ±20% C14/15 1102-478044-000 ELECT. CAP. 0.47UF/50V ±20%...
Page 63 PUSH SWITCH 2P2T ESB64801 (MATSUSHITA) CN841 2500-032201-050 3PIN 220MM 1CONN CABLE AWG#28 UL1571 D841 3100-204000-001 LED 5MM BI-COLOR A/G #BL-BAG204 FL8550 MCU BOARD RESISTOR R701 1001-000320-000 CARBON FILM RESISTOR 10 OHM 2W ±5% R704-705 1001-001314-000 CARBON FILM RESISTOR 100 OHM 1/4W ±5%...
Page 64 FL8550 R708 1001-005316-000 CARBON FILM RESISTOR 1M OHM 1/6W ±5% R706 1002-203316-000 CARBON FILM RESISTOR 22K OHM 1/6W ±5% R730 1002-403316-000 CARBON FILM RESISTOR 24K OHM 1/6W ±5% R702 1008-202316-000 CARBON FILM RESISTOR 8.2K OHM 1/6W ±5% R733 1041-003318-331 RESISTOR ARRAY 10K x 4 1/8W TYPE A...
Page 65 FL8550 S801-806/811-809 2400-020200-000 TACT SW 2P2T KPT-1105A (5MM) CN803 2500-072601-040 7PIN 260MM 1CONN CABLE AWG#26 2MMP 2507-145002-240 D-ROW CABLE 14PIN 500MM 2.54MMP 2507-205002-240 D-ROW CABLE 20PIN 500MM 2.54MMP U801 3001-260430-001 INFRARED SENSOR PIC-26043TM VFD1 3106-081100-000 VFD DISPLAY SVA-08MM11 FL8350/8550 DIGITAL OUTPUT BOARD...
Page 66 9115-000501-000 SILICON GREASE SHINETSE #G501 FL8350/8550 TURN TABLE 2300-006000-000 STRAIGHT CONN. WAFER 6PINS 2MMP 2501-062801-150 6PIN 280MM 2CONN RIBBON CABLE AWG#28 2MMP FL8550 FCC ADD-ON J7, C366/CN2 1100-103044-000 CERAMIC CAP. 0.01UF/50V ±20% C334(+), 1100-104044-000 CERAMIC CAP. 0.1UF/50V ±20% CN318(GND)/C326, C359(GND) CN313.
Page 67: Mechanical Parts List
FL8550 MECHANICAL PART LIST Item Part Number Description 9685-501000-003 FL8550 MECHAN ASSY 120V NTRL/C LOW THD REV C 5110-362000-000 LASER PICK UP LABEL 6029-010012-000-01 PLASTIC FOOT (HOT STAMPING) 6083-510001-002-02 HARMAN/KARONT FRONT PANEL W/SILKCREEN&P 6083-510002-000-01 HARMAN/KARDON FL8350&FL8550 TRAY DOOR(WSILKSCREEN) 6083-510003-000-01 HARMAN/KARDON FL8550 DISPLAY LENS (W SILKSCREEN)
Page 68: Troubleshooting Flow Charts
FL8550 TROUBLESHOOTING (DETAILED)
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Page 74: Pcb Layouts
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Page 78: Schematic Diagrams
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Page 80 02'(/ 12 3$57 12 5(9 3$57 1$0( )/ 0&8 %RDUG $VV\ )/ 'LJLWDO 2XWSXW %RDUG $VV\ $W 9 '& /HYHO 'HVF 'DWH FL8550 -22V +5VAC -5VAC V C C Z702 R701 CN702 IN4001x4 6.2V 10,1/2W...
Page 81 3$57 1$0( )/ &RQWURO %RDUG $VV\ )/ 3RZHU &RQWURO %RDUG $VV\ )/ 'LVSOD\ %RDUG 9)' $VV\ )/ 'LVSOD\ %RDUG 9)' $VV\ VFD1 )RU )/ 2QO\ FL8550 VFD DISPLAY SVA-08MM11 V C C CN805 7R &'6HUYR +'&' D801 %RDUG ,QGLFDWRU &1""...
Page 82 3$57 12 5(9 3$57 1$0( )/ +HDGSKRQH %RDUG $VV\ FL8550 R507 C505 U501A 10/50 C507 R515 4558L 10/50 R505A R503 50KB R509 100K C509 R513 R511 CN502 CN503 R512 R514 C510 C O N 3 R504 R510...
Page 83: Packing
FL8550 FL8550 PACKING PART LIST Ref. Part No. Description 1. 5000-835001-001 POLYFOAM, FL8550 2. 5206-500160-050 E.P.E. SHEET P-EP500160-05 3. 5200-230321-030-01 POLYBAG FOR ACCESSORIES 4. 5100-855000-100 OWNER’S MANAUL FL8550 120V 4. 5103-835000-100 LIMITED WARRANTY SHEET 4. 5103-835000-200 WRRANTY SERVICE SHEET 4. 5199-835000-100 SAFETY PRECAUTIONS SHEET 5.

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