Harman Kardon CDR-20 Service manual

harman/kardon

Model

CDR20

Dual Tray CD/CD-R/CD-RW Recorder/Player

SERVICE MANUAL

CONTENTS

SERVICING PRECAUTIONS . . . . . . . . ... . . .. .2

ESD PRECAUTIONS..…………………………... 4

SPECIFICATIONS . . . . . . . . . . . . . . . . . . . .. . . .5

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

FRONT PANEL DISPLAY ……….. . . .. . . . . . . 8

REAR PANEL CONNECTIONS. . . . . . ……… 10

REMOTE CONTROL FUNCTIONS. . . . . .. .. …11

INSTALLATION/CONNECTIONS. ……………..13 BASIC TROUBLESHOOTING GUIDE………... 14 SPECIAL NOTES ON CDR20 RECORDING… 15

harman/kardon, Inc.

250 Crossways Park Dr.

BULLETIN HK2001-04……………………..……..16

BULLETIN HK2001-06……….. .. . . . . …….. .. . 17

DETAILED TROUBLESHOOTING GUIDE …….19

BLOCK DIAGRAMS . . . . . . . . .. . . .. . .. .. . . . .36

EXPLODED VIEWS . . . . . . . . . . . .. . .. . .. . . . . 39

MECHANICAL PARTS LIST……….. .. . . . . . .. . 42

ELECTRICAL PARTS LIST . . . . . .. . . ..… …….44

PCB DRAWINGS. . . . . . . . . . . . ….. . .. . . . .. . . 65

SCHEMATIC DIAGRAMS . . . . . ……………….. 71

WIRING DIAGRAM………………………………..85

Woodbury, New York 11797

CDR20

SERVICING PRECAUTIONS

NOTES REGARDING HANDLING OF THE PICK-UP

1. Notes for transport and storage

1) The pick-up should always be left in its conductive bag until immediately prior to use.

2) The pick-up should never be subjected to external pressure or impact.

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Storage in conductive bag

Drop impact

2. Repair notes

1) The pick-up incorporates a strong magnet, and so should never be brought close to magnetic materials.

2) The pick-up should always be handled correctly and carefully, taking care to avoid external pressure and impact. If it is subjected to strong pressure or impact, the result may be an operational malfunction and/or damage to the printed-circuit board.

3) Each and every pick-up is already individually adjusted to a high degree of precision, and for that reason the adjustment point and installation screws should absolutely never be touched.

4) Laser beams may damage the eyes! Absolutely never permit laser beams to enter the eyes! Also NEVER switch ON the power to the laser output part (lens, etc.) of the pick-up if it is damaged.

NEVER look directly at the laser beam, and don’t let contact fingers or other exposed skin.

5) Cleaning the lens surface If there is dust on the lens surface, the dust should be cleaned away by using an air bush (such as used for camera lens). The lens is held by a delicate spring. When cleaning the lens surface, therefore, a cotton swab should be used, taking care not to distort this.

Pressure

Magnet

Pressure

How to hold the pick-up

Cotton swab

Conductive Sheet

6) Never attempt to disassemble the pick-up. Spring by excess pressure. If the lens is extremely dirty, apply isopropyl alcohol to the cotton swab. (Do not use any other liquid cleaners, because they will damage the lens.) Take care not to use too much of this alcohol on the swab, and do not allow the alcohol to get inside the pick-up.

CDR20

NOTES REGARDING COMPACT DISC PLAYER REPAIRS

1. Preparations

1) Compact disc players incorporate a great many ICs as well as the pick-up (laser diode). These components are sensitive to, and easily affected by, static electricity. If such static electricity is high voltage, components can be damaged, and for that reason components should be handled with care.

2) The pick-up is composed of many optical components and other high-precision components. Care must be taken, therefore, to avoid repair or storage where the temperature of humidity is high, where strong

magnetism is present, or where there is excessive dust.

2. Notes for repair

1) Before replacing a component part, first disconnect the power supply lead wire from the unit

2) All equipment, measuring instruments and tools must be grounded.

3) The workbench should be covered with a conductive sheet and grounded. When removing the laser pick-up from its conductive bag, do not place the pick-up on the bag. (This is because there is the possibility of damage by static electricity.)

4) To prevent AC leakage, the metal part of the soldering iron should be grounded.

5) Workers should be grounded by an armband (1MΩ)

6) Care should be taken not to permit the laser pick-up to come in contact with clothing, in order to prevent static electricity changes in the clothing to escape from the armband.

7) The laser beam from the pick-up should NEVER be directly facing the eyes or bare skin.

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Resistor (1 Mohm)

Armband

Resistor (1 Mohm)

Conductive Sheet

CDR20

harman/kardon

ESD PRECAUTIONS

Electrostatically Sensitive Devices (ESD)

Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive Devices (ESD). Examples of typical ESD devices are integrated circuits and some field-effect transistors and semiconductor chip components. The following techniques should be used to help reduce the incidence of component damage caused by static electricity.

1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any electrostatic charge on your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging wrist strap device, which should be removed for potential shock reasons prior to applying power to the unit under test.

2. After removing an electrical assembly equipped with ESD devices, place the assembly on a conductive surface such as aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly.

3. Use only a grounded-tip soldering iron to solder or unsolder ESD devices.

4. Use only an anti-static solder removal device. Some solder removal devices not classified as "anti-static" can generate electrical charges sufficient to damage ESD devices.

5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ESD devices.

6. Do not remove a replacement ESD device from its protective package until immediately before you are ready to install it. (Most replacement ESD devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or comparable conductive materials).

7. Immediately before removing the protective material from the leads of a replacement ESD device, touch the protective material to the chassis or circuit assembly into which the device will by installed.

CAUTION : BE SURE NO POWER IS APPLIED TO THE CHASSIS OR CIRCUIT, AND OBSERVE ALL

OTHER SAFETY PRECAUTIONS.

8. Minimize bodily motions when handing unpackaged replacement ESD devices. (Otherwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an ESD device).

CDR20

harman/kardon

CDR20 SPECIFICATIONS

Playback Sampling Frequency 44.1 kHz D/A Conversion 96kHz, Multi-Bit Delta-Sigma Conversion Oversampling 128 Times

Playback Specifications

Frequency Response 2Hz – 20,050Hz Playback S/N 105dB Playback Dynamic Range 105dB Playback THD 0.005% / –88dB Analog Audio Output 2V RMS, ± 2dB Digital-Coaxial Output 0.5 Vpp/75Ω Headphone Output 1V RMS/32ΩLoad

Record Specifications

Digital Dubbing Mode(X1/X2/X4) Equal to source Digital Input Sample Rate 32kHz ~ 96kHz Signal/Noise Rati o - Analog 91dB Signal/Noise Rati o - External(Source) source-10dB Dynamic Range 91dB THD 0.005%/-85dB Analog Input Sensitivity 330 mV RMS 47kΩ= 0dB Digital Inputs (Direct Recording) 44.1kHz, ± 100 ppm/min.

General

Power Requirement 100~240V AC, 50/60Hz Power Consumption 28 Watts Dimensions

Height 4.4"/112mm Width 17.3"/440mm Depth 14.2"/363mm

Weight 10.5 lb/4.7 kg

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CDR20

Front-Panel Controls

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1 Power Switch 2 Status-Mode Indicator 3 Play Deck 4 Headphone Jack 5 Headphone Level Control 6 Digital Input 7 Play-Deck Open 8 Record Button 9 CD Sync ) Dubbing ! Erase

1 Power Switch: Press this switch to apply

power to the CDR 20.When the unit is first turned on, the Status-Mode Indicator 2 surrounding the switch will turn green. Once the unit has been turned on with this switch, it may be operated from either the front panel or remote control. Press the switch again to turn the unit completely off.

2 Status-Mode Indicator:When the CDR 20 is in the ON mode,this indicator will glow green.When the unit has been placed in the Standby mode by pressing the Power-Off but- ton on the remote,the indicator will glow amber, indicating that the unit is still connected to the AC main supply and is ready to be turned on from the remote control.

3 Play Deck:This disc deck is used to play back conventional CD discs and CD-R or CD-RW discs that have been finalized.

@ Finalize # Speed $ Record-Deck Open % Record Deck ^ Analog-Record Level Control & Record-Deck Stop * Record-Deck Play/Select ( Record-Deck Pause Ó Record-Deck Next Ô Record-Deck Previous  Input Select

4 Headphone Jack: Connect standard head-

phones to this jack for private listening. 5 Headphone Level Control: Turn this

control to adjust the volume level to the headphones.Note that the use of this control will not change the analog output levels at the rear-panel audio outputs ¡™.

6 Digital Input: This coaxial digital input may be used to connect a portable digital audio player to the CDR 20 for digital recording. When an active digital signal is connected to both the front- and rear-panel coaxial inputs, the source connected to the front-panel input will be selected for recording.

7 Play-Deck Open: Press this button to open the Play Deck 3.

8 Record Button: Press this button to begin the recording process.See pages 20-22 for more information on CD recording.

Ò Record-Deck Display Select Ú Information Display Û Remote Sensor Ù Play-Deck Display Select ı Dual-Play Selector ˆ Play-Deck Next ˜ Play-Deck Previous ¯ Play-Deck Pause ˘ Play-Deck Play ¸ Play-Deck Stop

9 CD Sync: Press this button once to begin

an automated recording of a single track from an external CD player when a digital connection is used. Press it twice to begin automated recording of an entire disc. See page 21 for more information on CD Sync recording.

) Dubbing: Press this button to begin the process of making a complete copy of the disc in the Play Deck 3 to a CD-R or CD-RW disc in the Record Deck %. See page 20 for more information on dubbing.

! Erase: Press this button to erase one or more tracks or the entire contents of an unfinalized CD-RW disc.When a CD-RW disc has already been finalized you may erase the entire disc or you may “unfinalize”the disc by erasing the TOC data. See page 22 for more information on erasing CD-RW discs.

CDR20

Front-Panel Controls

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@ Finalize: Press this button when a record- ing is complete to initiate the finalization process.The Play/Select Button *j must be pressed within three seconds to activate finalization.Until this button is pressed and the finalization process is complete,CD-R discs may not be played on conventional CD machines.See page 22 for more information on finalization.

# Speed: Press this button to select the recording speed for internal dubs.See page 20 for more information on selecting the proper speed.

$ Record-Deck Open: Press this button to open the Record Deck %.

% Record Deck: This Disc Deck is used to record or play back CD,CD-R and CD-RW discs.

^ Analog-Record Level Control: The con- trol is used to adjust the input level when making recordings from analog sources such as cassettes,or when CDs are recorded in an analog mode.See page 22 for more information on record levels.

& Record-Deck Stop: Press this button to stop the CD in the Record Deck.

* Record-Deck Play/Select: This button has two functions.It may be pressed when a standard CD is in the Record Deck to put the machine in play,or it may be used to enter a selection or start certain record functions.

( Record-Deck Pause:When the Record Deck is in the Play mode,pressing this button will pause the disc. If the disc has previously been paused, pressing this button will restart the playback.

Ó Record-Deck Next: When a disc is play- ing in the Record Deck %, press and hold this button to play the disc in a fast-forward mode to quickly locate a desired passage.At any time, tapping the button and quickly releasing it will move to the next track on a disc in play.

Ô Record Deck Previous: This button has two functions.When a disc is playing in the Record Deck %, press and hold this button to play the disc in a fast reverse mode to quickly locate a desired passage.At any time, tapping the button and quickly releasing it will move to the beginning of the current track,and the next press will move to the previous track.When a disc is stopped, each press will move back one for programming or play when the disc is stopped. Once a track is entered, it may be played by simply pressing the Play button *j.

 Input Select: Press this button to select the input source (analog or digital coax) for recording. See page 22 for more information on input selection.

Ò Record-Deck Display Select: Press this button to cycle through the time display options for the Record Deck. See page 17 for more information on the time display.

Ú Information Display: The indicators in the Information Display provide status reports on the operation of the CDR 20.See page 7 for complete explanations of each indicator.

Û Remote Sensor: The IR sensor that receives the commands from the remote control is behind this area. Do not cover or obscure this part of the front panel to avoid any malfunction with the remote.

Ù Play-Deck Display Select: Press this but- ton to cycle through the time display options for the Play Deck. See page 17 for more information on the time display.

ı Dual-Play Selector: Press this button to enable both CD decks to play at the same time and function as separate,independent CD units.In this mode it is also possible to record from an external source while the Play Deck is functioning as a standard CD player. See page 17 for more information on dual-play capability.

ˆ Play-Deck Next: When a disc is playing in the Play Deck 3, press and hold this button to play the disc in a fast-forward mode to quickly locate a desired passage.At any time, tapping the button and quickly releasing it will move to the next track on a disc in play.

˜ Play-Deck Previous: This button has two functions.When a disc is playing in the Play Deck 3, press and hold this button to play the disc in a fast-reverse mode to quickly locate a desired passage.At any time, tapping the button and quickly releasing it will move to the beginning of the current track,and the next press will move to the previous track.When a disc is stopped, each press will move back one track for programming or play when the disc is stopped. Once a track is entered, it may be played by simply pressing the Play button

˘j. ¯ Play-Deck Pause: When the Play Deck is

running, pressing this button will pause the disc. If the disc has previously been paused, pressing this button will restart the playback.

˘ Play-Deck Play: Press this button to begin playback of a CD in the Play Deck or the dubbing process.

¸ Play-Deck Stop: Press this button to stop the CD in the Play Deck.

Front-Panel Information Display

A Random Indicators B Program Indicators C Level Indicators D Repeat Indicators E Repeat-Status Indicators F Speed Indicators G Copy-Prohibit Indicator H Dubbing Indicator I Sync Indicator

J Dual-Play Indicator K Information Displays L Time Indicators M Remaining-Time Indicators N Total-Time Indicators O Track-Time Indicators P R/RW Indicator Q Play/Pause Indicators R Sample-Rate Converter

S CD Indicators T Record Indicator U Finalize Indicator V Erase Indicator W Auto Indicator X Analog Indicator Y Digital Indicator

A Random Indicators: These indicators light

when random playback has been programmed for one of the CD decks.See page 16 for more information on random play.

B Program Indicators: These indicators light when one of the CD decks is being programmed for playback options.See page 18 for more information on programmed play.

C Level Indicators: These LEDs display the input level during an analog recording, and the output level during playback. See page 22 for more information on record levels.

D Repeat Indicators: These indicators light when a repeat function is being used. See page 18 for more information on repeat play.

E Repeat-Status Indicators: These indica- tors display the type of repeat function being used. See page 18 for more information on repeat status.

F Speed Indicators: These indicators show which record speed has been selected for dub recordings.See page 20 for more information on record-speed selection.

G Copy-Prohibit Indicator: This indicator lights when a recording is not possible due to the intervention of the Serial Copy Management System (SCMS). See page 20 for more information on SCMS.

H Dubbing Indicator: This indicator lights when a dub is in progress between the two CD

Decks.See page 20 for more information on CD dubbing.

I Sync Indicator: This indicator lights when the unit has been programmed for a CD Sync recording. See page 21 for more information on CD Sync recordings.

J Dual-Play Indicator: This indicator lights when the unit is playing in the Dual mode, which allows both CD decks to act as playback decks at the same time.See page 17 for more information on the dual-play mode.

K Information Displays: These displays serve two functions,showing the time displays for discs playing, and displaying messages about discs or recordings.

Important Note: Since the CDR 20 is a dual-deck player/recorder,there are two separate sets of indicators for the Random,Program,Repeat,Repeat Status,Time,Total Time and Track Time.In addition, there is a separate Information Display,Play/Pause Indicator and CD Indicator for each deck. As the function of these indicators is identical for both decks,they are described in this manual with a common letter. When the CDR 20 is playing or recording a disc, any indicators that light on the left side of the display describe the status of the Play Deck, while those that light on the right side of the display describe the status of the Record Deck. Depending on the activity of the unit and the settings you select, different indicators may light on the two sides at the same time.

CDR20

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CDR20

Front-Panel Information Display

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L Time Indicators: These indicators light in conjunction with one of the time indicators MNO to show which of the time status modes is active.

M Remaining-Time Indicators: These indica- tors light when the Information Display K shows the time remaining on a disc.

N Total Time:These indicators light when the Information Display K shows the total time of all tracks on a disc.

O Track Time:These indicators light when the Information Display K shows the running time of the individual track being played.

P R/RW Indicator: This indicator shows which type of recordable disc is present in the Record Deck %.When a CD-R disc is present,only the R is lit.The RW lights when an erasable CD-RW disc is in use.

Q Play/Pause Indicators:These indicators show the status of the individual CD decks.The › lights when the CD is playing, and the › lights when the unit is in a Pause mode.

±±

R Sample-Rate Converter: This indicator

lights when the Sample-Rate Converter is in use to change the digital sample rate when the incoming signal is not the standard 44.1kHz used by standard CDs.This is an automatic function and does not require any user intervention.

S CD Indicators: These indicators light when a standard CD is playing in either deck 3 or

%. T Record Indicator: This indicator lights

when the unit is making a recording and flashes during the preparations for recording.

U Finalize Indicator: This indicator lights when the unit is in the Finalization process, which is required before a CD-R disc may be played on a standard CD machine.See page 22 for more information on Finalization.

V Erase Indicator: This indicator lights when a CD-RW disc is being erased.Note that only CD-RW discs may be erased;it is not possible to erase a CD-R disc.See page 22 for more information on erasing discs.

W Auto Indicator: This indicator lights when the automatic method of incrementing tracks is selected for a recording session. See page 21 for more information on track increments.

X Analog Indicator: This indicator lights when an analog source is being recorded. See page 21 for more information on source selection.

Y Digital Indicator: This indicator lights when a digital source is being recorded. See page 21 for more information on source selection.

Rear-Panel Connections

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AC 100~240V 50-60Hz 28W

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OPTICAL

CDP OUT

¡ Play Deck (CDP) Analog Output ™ Record Deck (CDR) Analog Output £ Record Deck (CDR) Analog Input ¢ Play Deck (CDP) Coaxial-Digital Output

∞ Record Deck (CDR) Coaxial-Digital Output

§ Record Deck (CDR) Coaxial-Digital Input ¶ Record Deck (CDR) Optical-Digital Input

• Play Deck (CDP) Optical-Digital Output

ª Remote IR Input ‚ Remote IR Output ⁄ AC Power Cord

¡ Play Deck (CDP) Analog Output: These

jacks carry the analog audio output signal from the Play Deck 3. Connect them to the CD input jacks on a receiver, preamp or processor.

™ Record Deck (CDR) Analog Output:

These jacks carry the output signal from the

Record Deck %. Connect them to the Tape Play/In input jacks on a receiver,preamp or

processor. £ Record Deck (CDR) Analog Input:These

jacks accept the analog signals that are used for CD recordings.Connect them to the Tape Rec/Play outputs on a receiver, preamp or processor.

¢ Play Deck (CDP) Coaxial-Digital Output: This jack carries the digital-audio out-

put signal from the Play Deck 3. Connect it to a coaxial-digital input on a receiver, processor or digital decoder.

∞ Record Deck (CDR) Coaxial-Digital Output: This jack carries the digital audio out-

put signal from the Record Deck %. Connect it to a coaxial digital input on a receiver, processor or digital decoder.

§ Record Deck (CDR) Coaxial-Digital

Input: This jack accepts the digital-audio input

signal from a compatible digital audio product and should be connected directly to a digital player or to a coaxial-digital output on a CD or DVD player or an A/V receiver or processor.

IMPORTANT NOTE: The coaxial digital inputs should only be connected to digital input or output jacks.Even though they use the same RCA type connector as standard analog audio connections,DO NOT connect them to conventional analog input or output jacks.

¶ Record Deck (CDR) Optical-Digital Input: This jack accepts the digital-audio input

signal from a compatible digital audio product, and should be connected to the optical-digital output on a CD or DVD player or an A/V receiver or processor.

• Play Deck (CDP) Optical-Digital Output: This jack carries the optical digital

output signal from the Play Deck 3. Connect it to an optical digital input on a receiver, processor or digital recorder. This will typically be connected to the “CD”input.

ª Remote IR Input: Connect the output of a remote infrared sensor or the remote control output of another compatible Harman Kardon product to this jack.This will enable the remote control to operate even when the front-panel Remote Sensor Û is blocked.This jack may also be used with compatible IR remote control based automation systems.

‚ Remote IR Output: Connect this jack to the IR input jack of another compatible Harman Kardon remote controlled product to have the built-in remote sensor Û on the

CDR 20 provide IR signals to other compatible products.

⁄ AC Power Cord: Connect this plug to an AC outlet.If the outlet is switch controlled, make certain that it is in the ON position.

CDR20

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CDR20

Remote Control Functions

a Power-On Button b Play Deck (CDP) Display Control c Play Deck (CDP) Open d Play Deck (CDP) Select e Program f Reverse Search g Single h Program Check i Previous-Track Skip j Play/Select k Random Play l Dub m Automatic/Manual Track Increment Selector n Track Increment o Finalize p Numeric Keys q A-B Repeat r Repeat s Speed Select t Record Button u Erase Button v Input Select w CD Sync x Stop y Pause z Next Track/Skip ` Dual-Deck Playback

Forward Search

●

Record Deck (CDR) Select

●

Record Deck (CDR) Open

●

Record Deck (CDR) Display Control

●

Power Off

●

Clear

●

IMPORTANT NOTE: Some of the remote’s functions, including Play,Pause, Stop, Search, Next and Previous Track, are shared between the two decks.Always remember to press the CDP Select button d to use the remote to control the Play Deck, or press the CDR Select button to control the Record Deck. When you press one of these buttons, an indication of CDP or CDR will appear in the appropriate Information Display K.

SINGLE

AUTO/MAN

TR INCR

RANDOM

POWER

CLEAR

PROG.

PROG

CHECK

PLAY/SELECT

STOP PAUSE

DUB

CD SYNC

FINALIZE

REC

CDR/RW

INPUT

ERASE

SPEED

REPEAT

OFF

A B

DUAL

harman/kardon

Remote Control Functions

a Power-On Button: Press this button to turn the CDR 20 on. Note that in order for this control to function, the Front-Panel Power Switch 1 must first be pressed so that the unit is in the Standby mode.

b Play Deck (CDP) Display Control: Press this button to cycle through the various time display options for the disc in the Play Deck

3. See page 17 for more information on time-

display options. c Play Deck (CDP) Open: Press this button

to open the Play Deck 3. d Play Deck (CDP) Select: Press this but-

ton to control or program the functions of the disc in the Play Deck 3.

e Program: Press this button to begin the programming sequence for one of the CD decks.See page 18 for more information on programming the CDR 20.

f Reverse Search: Press this button to play the selected disc in reverse to locate a desired passage.

g Single: When this button is pressed, the CDR 20 will function as a two-disc CD player/ changer. In the Single mode,the audio output will be routed to all output jacks ¡™¢∞

• regardless of which CD deck is actually

playing. See page 17 for more information on the Single-Play mode.

h Program Check: Press this button to check or edit a programmed playback sequence. See page 18 for more information on programmed

playback.

i Previous-Track Skip: Press this button to skip backwards to the beginning of the track currently being played. Press it a second time to move back to the beginning of each previous track.

j Play/Select: This button has two func- tions.It will most often be used as a standard play button, but when setting up certain record functions,it is also used as an Enter or Select button.

k Random Play: When the CD deck is stopped, press this button to begin random play of all tracks on a disc.

l Dub: Press this button to begin a dub.See page 20 for more information on dubbing.

m Automatic/Manual Track Increment Selector: Press this button to select between

automatic and manual track increments during a recording session. See page 21 for more information on track increments.

n Track Increment:When the Manual mode for track increments is selected during recording, press this button to increase the track number. NOTE: This function does not operate during CD Sync or dub recording.

o Finalize: Press this button when a record- ing is complete to initiate the finalization process.The Play/Select button *j must be pressed within three seconds to activate finalization. Until this button is pressed and the finalization process is complete,CD-R or CD-RW discs may not be played on conventional CD machines.See page 22 for more information on Finalization.

p Numeric Keys: Press these buttons to access a specific track for playback or during the programming process.See page18 for more information on programmed playback.

q A-B Repeat: Press this button to specify a segment of a disc for repeat play.See page 18 for more information on repeat play.

r Repeat: Press this button once to repeat the current track.To repeat an entire disc, press the button twice.

s Speed Select: Press this button to select the recording speed for internal dubs.See page 20 for more information on selecting the proper speed.

t Record Button: Press this button to begin a manual recording.

u Erase Button: Press this button to initiate the erasure of a track or of an entire CD-RW disc or to Unfinalize a disc. Note that erasure is only possible on CD-RW discs.See page 22 for more information on erasing discs.

v Input Select: Press this button to select the input source (analog or digital-coax) for recording. See page 21 for more information on input selection.

w CD Sync: Press this button once to begin an automated recording of a single track from an external CD player when a digital connection is used. Press it twice to begin automated recording of an entire disc. See page 21 for more information on CD Sync recording.

x Stop: Press this button to stop playback or recording.

y Pause: Press this button to momentarily pause playback. Press it again to resume playback.

z Next Track/Skip: Press this button to skip forward to the next track on a disc.

` Dual Deck Playback: Press this button to enable both CD decks to play back at the same time and function as separate,independent CD units.In this mode it is also possible to record from an external source while the Play Deck is functioning as a standard CD player. See page 17 for more information on dual-play capability.

Forward Search: Press this button to

play a disc in a fast-forward mode.

Record Deck (CDR) Select: Press this button to control or program the functions of the disc in the Record Deck %.

Record Deck (CDR) Open: Press this button to open the Record Deck %.

Record Deck (CDR) Display Control:

Press this button to cycle through the various time-display options for the disc in the Record Deck %. See page 17 for more information on time-display options.

Power-Off: Press this button to place the unit in a Standby mode.

Clear: Press this button to clear an item in a program sequence.See page18 for more information.

CDR20

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CDR20

Installation and Connections

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Important Note: To prevent possible damage to your speakers or other components in your audio system, we strongly recommend that ALL system components,including the CDR 20,be turned off and unplugged from their AC power source when any connections are made or a new component is installed.

Locating the CDR 20

Since the CD transports in the CDR 20 are precision instruments,they are subject to interference from vibration.To minimize the possibility of skipping during playback or recording, it is recommended that the unit be placed on a level, solid, vibration-free surface.

When installing the CDR 20 in a cabinet or tight space,always make certain that there is enough room in front of the unit for the disc drawers to open fully,and that there is enough space above the unit so that discs may easily be inserted in the disc drawers.

In addition to the safety considerations outlined on page 4, it is also recommended that the CDR 20 not be placed in a location that is subject to direct sunlight or extreme heat or cold, as these conditions may damage the discs used in the player, or the player itself. Note that audio amplifiers or high-power receivers,as well as certain other electronic products,may generate significant heat.For that reason,do not place the CDR 20 directly on top of an amplifier, receiver, or other heat source.Always allow at least one inch of free space on all sides of the CDR 20, as well as other electronic products,to allow for proper ventilation.

The unit should also be kept away from sources of water or damp conditions.

Connections to Your Audio System

When connecting the CDR 20, think of the process as if your were connecting a standard CD player and a tape or cassette recorder, with the addition of the digital connections.

Play-Deck Connections

The rear-panel connections labeled “CDP” refer to the outputs of the Play Deck 3, which functions as a standard CD player. Connect the analog left/right CDP outputs ¡ to the CD inputs on your receiver, preamp or surround processor. For best playback results, a digital connection is recommended, using the coaxial or optical ¢• outputs. Connect them to the matching digital inputs of your receiver, preamp,processor or external digital decoder. Note that you may have to change a setting on the receiver or processor to link the digital input to the “CD”button or input selector. Consult the owner’s manual on that device for details, as this configuration may vary from unit to unit.

Record-Deck Connections

The rear-panel connections labeled “CDR” refer to the inputs and outputs for the Record Deck %. Depending on the capabilities of your receiver, preamp or processor, you may find it convenient to connect the analog inputs and outputs to the jacks marked for a tape recorder. As the CDR 20’s functions resemble those of a standard tape recorder, this might make it easier to select it as an input on your receiver or preamp.Connect the analog CDR-Out jacks ™ to the Play/In jacks of a Tape or Aux input on your receiver or preamp.Connect the CDR-In jacks £ to the Tape Rec/Out jacks on your receiver or preamp.

To play the output of the Record Deck through the digital decoder in your receiver or an external processor, connect the CDR Coax-Out ∞ jacks to the matching digital-input jacks on your receiver or processor. Note that you may have to change a setting on the receiver or processor to link the digital input to the “Tape” button or the specific input selector associated with the digital inputs.Consult the owner’s manual on your receiver or processor for details,as this configuration may vary from unit to unit.

To make recordings from external digital sources,such as a CD,DVD or MD player, connect the CDR Coax-In jacks §6 or CDR Optical In Jack ¶ on the CDR to the digital output jacks on your receiver or processor. If your receiver does not have digital-output jacks, you may connect the CDR Coax In jacks

§6 or CDR Optical In Jack ¶ on the CDR 20 directly to the digital outputs on your CD player or other digital device.

Connections to a portable digital CD or MD player may also be made by connecting the Coax Digital Output of the player to the FrontPanel Digital Input 6 on the CDR 20. Note that when both the front and rear panel digital inputs are connected to external sources, the CDR 20 will give priority to the front-panel input 6. If it is impractical to disconnect the front-panel input when you need to use the rear-panel jack,simply turn off the device connected to the front-panel input.This will stop the digital signal, and permit the rear-panel jack to be used.

IMPORTANT NOTES ON DIGITAL CONNECTIONS:

Although digital-coax connections use the same type of “RCA” phono jack as standard analog signals,please take special care to connect digital signals only to digital jacks.In many cases, the digital jacks may be identified by an orange-colored insert ring around the center of the jack.When making digital connections, be sure to use coax-interconnect cables,such as the one supplied with the CDR 20 or cables intended for video applications.Even though they have the correct type of RCA connector, do not use audio-interconnect cables that have twisted-pair construction, as they are not appropriate for digital signal use.If you have any questions about the type of cables to use with the CDR 20, consult your dealer.

Troubleshooting Guide and Error Messages

TROUBLESHOOTING GUIDE

SYMPTOM POSSIBLE CAUSE SOLUTION

Unit does not operate when Standby switch • No AC power • Make certain AC power cord is plugged into a live outlet or remote Power-On is pressed • Check to see if AC outlet is switch controlled

• Main Power Switch is off • Turn on Main Power

Remote does not function • Wrong deck selected • Press the CDP button to control the Play Deck;

press the CDR button to control the Record Deck

• Dead batteries • Replace both batteries

• Sensor blocked • Remove obstructions from front panel or connect a remote sensor to the Remote-In Jack

Disc does not erase • CD-R disc in use • CD-R discs do not erase,only CD-RW discs may be erased Recorded CD-R disc does not play in • CD-R disc not finalized • Finalize the CD-R disc in the CDR 20’s Record Deck

another CD player or DISC ERROR message appears in Play Deck

Recording suddenly stops • Input source stopped or paused • Recordings will stop when the input source is paused

for more than 3 seconds for digital recordings and 10 seconds for analog recordings

ERROR MESSAGES

ERROR MESSAGE EXPLANATION AND PROBABLE CAUSE SOLUTION

CHECK DISC • A record-related button has been pressed when a • Unfinalize the disc to add tracks to a CD-RW disc

Finalized disc is in the Record Deck % • Replace the disc with a blank CD-R or CD-RW disc

• A record-related button has been pressed when a • Replace the disc with a blank CD-R or CD-RW disc standard CD is in the Record Deck %

DATA DISC • A non-audio CD-ROM or a CD-Video disc has been • Only CD Audio and DTS discs will play in the CDR 20;

placed in the machine replace the disc

DISC ERROR• An Unfinalized disc has been placed in the Play Deck 3• Finalize the disc

• ADVD disc has been placed in the unit • Replace the disc, the CDR 20 does not play or dub DVD discs

DISC FULL • There are only four seconds of record time remaining • Use another blank CD-R or CD-RW disc

on the disc being recorded • Erase one or more tracks on a CD-RW disc

ERROR • The disc is not seated properly • Open the drawer and check to see that the disc is properly seated

• There is a problem with the disc • Try another disc

FAILED • A dub has not been completed properly • Check the play disc

• Repeat the dub process

FULL • More than 99 tracks have been recorded • The CDR 20 does not record more than 99 tracks on a disc NO AUDIO • Arecord-related button has been pressed when • Replace the disc with a blank CD-R or CD-RW Audio disc

a non-audio disc is in the Record Drawer %

SVC-1 • There is an internal problem with the CDR 20 • Contact an authorized Harman Kardon service depot

CDR20

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CDR20

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Notice - Important information regarding the use of the harman/kardon CDR 20.

1) Complaint: “I cannot record at x2 or x4 speed. Unit switched back to 1x speed”

Possibl e explanations:

a) Programmed play only records at x1 sp eed. You cannot record at x2 or x4 speeds when programmed

dub is attempted (to record only certain tracks on a CD)

b) Some brand s of CDR do not allo w recording at x2 or x4 speed. Try another major brand – Maxell,

Memorex, Sony,TDK. See list below.

c) Disc might be a copy - even a cou nt erfeit disc – this will prevent recording at speeds gre at er than 1X.

Try recording off a new store-bought CD you know

2) Due to slight variations in the manufacture of blank CD-R/RW audio discs, and for optimum performance of your CD recorder, harman/kardon recommends that you use blank recording discs manufactured by the following companies:

Products from these brand s ha ve been tested and certified for use with the CDR 20. While discs from other brands may also work, we cannot guarantee proper operation of the unit when they are used.

Recommended CD-R Audio Disc Manufacturers:

TDK Electronics Corporation Maxell Corporation of America LG Electronics, Inc. Mitsubishi Electric & Electronics USA, Inc. Ricoh Co mpany, Ltd. Philips Electronics North America Memorex Axia

Recommended CD-RW Audio Disc Manufacturers:

TDK Electronics Corporation Fuji Photo Film, U.S.A., Inc. LG Electroni cs , I nc. Memor ex Phili ps Elec tronics North America Samsung Electron i cs Co., Ltd. Ricoh Co mpany, Ltd. Axia SANYO-Verbatim CD Company SKC America, Inc. ZeroOne Mitsubishi Electric & Electronics USA, Inc Maxell Corporation of America

NOTE: The names shown a bove are the primary manufacturers, who may also produce discs for other brand names. When in doubt as to the origin of a disc, check with the brand shown on the package.

3) When a CD Audio disc is recorded on a computer, it is often possible to record a set of tracks,

finalize the disc, and then add additional tracks and finalize the disc again in a second recording session. This produces what is called a “multi-session” disc. Please note that these discs will work

properly when played back on a computer, or on the CDR 20’s Record (CDR) deck. However, due to differences in the way CDs are played back on computers, as opposed to consumer CD Audio players, multi-session discs will NOT play back prope rly on the CDR 20’s P lay (CDP) de c k, o r on most consumer CD players. When a multi-session disc is played in the CDP deck, only the tracks in the first session will play. This is not a defect or problem with the CDR 20, but is due to differen ces in the formats be t ween computer recordings and CD Audio products or commercially recorded CDs.

4) The CDR 20 prohibits the track incrementing function during the first six seconds for each track during recording. Thus, if a source track is less than six seconds long, it will be recorded, but it will not be assigned a track number. The track with less than six seconds will be combined into the next track number that is recorded on the disc. This feature prevents the recording of empty tracks when the source signal was not cued up to start playing at the same time a recording session begins.

is not a copy.

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Service bulletin # H/K2001-04 October 2001 To: All harman/kardon Service Centers Model: CDR20 Subject: Delay in Reading Blank Disc

In the event you receive a CDR20 CD Player/Recorder with the complaint: “The unit has an excessive delay (over 45 seconds) when initially reading a blank CDR disc in the Record dr awer, after it’s inserted”, perform the modification below:

Synopsis: Add a 330 pf ceramic capacitor from pin #1 on IC413 Op-amp to Ground.

1) With the unit plugged in, turn it ON. Press the eject button on the Record side to open the drawer.

2) With the drawer fully extended, carefully lift up on the front trim to separate it, and off the main part of the drawer. Press the eject buton again to close the drawer. Turn the unit OFF and unplug it.

3) Remove the (7) Phillips screws holding the top cover on; remove the top cover.

4) Unplug the three connectors at the rear of the Record PCB.

5) Unscrew the (4) black Phillips screws that are deep in the slotted wells in each corner of the Record mechanism. Lift the entire Record assembly up and out of the unit.

6) Remove the gray metal shield from the assembly. Lay the assembly upside-down on a table, PCB facing upwards.

7) The PCB can be disengaged from the assembly by depressing the two black plastic tabs on opposite sides of the PCB and lifting, in sequence.

8) CAREFULLY lift the PCB off the assembly, noting the (4) connectors that are attached to the PCB. Unplug the three ribbon connectors. (NOTE: the largest female connector on the PCB has a locking collar which must be lifted to disengage the cable); the mustard-colored molex connector can remain in place, “hinge” the PCB open enough to lay it flat on the table.

9) Locate the area of concern with the aid of the illustrations. Solder a 330pf ceramic capacitor, (h/k part# 147-75-331) from electrical equivalent pin #1 on IC431 Op-amp to Ground.

10) Reassemble and replace the record mechanism in reverse order; test the unit by inserting a blank CDR disc in the Record drawer and note the time delay.

Warranty labor rate: MINOR repair

Service Bulletin

Model Serial num ber

120V

CDR20 CDR20 LG0003-27201 LG0004-07631 Factory Installed NONE REQUIRED

LG0003-01001

LG0003-27200

Serial num ber

230V

LG0004-01001

LG0004-07630

Status Action

May have long time delay when

reading a b lank CDR dis c

Add 330 pf capacitor fr om pin #1

on IC413 Op-am p t o G r ound

CDR20

harman/kardon

Service bulletin # H/K2001-06 November 2001 To: All harman/kardon Service Centers Model: CDR20 Subject: Noise when dubbing at x4 speed

In the event you receive a CDR20 CD Player/Recorder with the complaint: “There is noise being generated on a r ecorded CDR at x4 speed”, perform the modification below:

Synopsis: Change re sistor R230 from 100 ohms to 22 ohms.

1) With the unit plugged in, turn it ON. Press the eject button on the Record side to open the drawer.

3) Remove the (7) Phillips screws holding the top cover on; remo ve the top cover.

4) Unplug the three connectors at the rear of the Record PCB.

5) Unscrew the (4) black Phillips screws that are deep in the slotted wells in each corner of the Record mechanism. Lift the entire Record asse mbly up and out of the unit.

6) Remove the gray metal shield from the assembly. Lay the assembly upside-down on a table, PCB facing upwards.

7) Locate the area of concern with the aid of the illustrations. Change SMD resistor R230 from 100 ohms to 22 ohms, h/k part# 301-22.

Reassemble and replace the record mechanism in reverse order; test the unit by inserting a blank CDR disc and

making a recording at x4 speed to assure the noise problem is gone.

Warranty labor rate: MINOR repair

Service Bulletin

See Page 2 for serial numbers of Factory Modified Units

CDR20

Service bulletin # H/K2001-06 November 2001

harman/kardon

FACTORY MODIFIED UNITS (120v)

All Serial Numbers begin with prefix LG0003-

28111 28335 28415 28910 29164 29655 28230 28336 28417 28914 29172 29659 28234 28337 28418 28918 29181 29666 28241 28338 28431 28921 29183 29693 28244 28339 28432 28924 29184 29711 28247 28340 28442 28926 29195 29748 28260 28341 28468 28945 29236 29772 28264 28342 28475 28956 29277 29783 28272 28343 28481 28960 29300 29788 28280 28343 28488 28971 29301 29803 28281 28345 28489 28973 29302 29805 28282 28346 28509 28986 29303 29808 28283 28347 28521 28995 29306 28284 28348 28522 28998 29308 28285 28349 28525 29002 29309 28286 28350 28526 29007 29310 28287 28351 28531 29009 29328 28288 28352 28533 29010 29330 28289 28353 28545 29012 29331 28290 28354 28547 29028 29344 28291 28355 28551 29029 29364 28292 28356 28625 29031 29393 28303 28363 28638 29033 29405 28317 28370 28648 29039 29409 28318 28371 28662 29045 29414 28319 28372 28715 29046 29419 28320 28373 28719 29053 29446 28321 28374 28763 29059 29453 28322 28376 28813 29067 29461 28323 28378 28816 29088 29474 28324 28379 28820 29089 29478 28325 28380 28827 29105 29481 28326 28382 28849 29114 29559 28327 28383 28862 29131 29570 28329 28384 28863 29135 29578 28330 28385 28872 29138 29581 28331 28387 28876 29141 29620 28332 28389 28890 29154 29630 28333 28391 28893 29155 29634 28334 28402 28909 29159 29648

Also units in the range LG0003-29853 - LG0003-30640

TROUBLESHOOTING GUIDE

1. Initial Lead-in Operation

2. Trouble List(Circuit)

(In the Initial Lead-in Operation Mode) A. Pick-Up doesn’t move to the inner-track. B. Pick-Up lens doesn’t move up and down. C. Disc doesn’t rotate. D. The Laser(RED) of Pick-Up doesn’t light. E. TOC isn’t read.

CDR20

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3. Troubleshooting Guide(In the Initial Lead-in Operation Mode)

CDR20

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CDR20

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CDR20

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CDR20

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TROUBLESHOOTING GUIDE FOR CD-RW BOARD

Reset or Power Check.

•Is the Pin 1, 3 of PN105 5V?

•Is the Pin 5 of PN105 12V?

YES

of IC101 change 0V to 5V at the power

Are the X701 and X301 oscillating?

•Is the Pin7 of IC514 2.5V?

•Is the pin1 and 2 of IC514 2.0V?

Does the pin1

supply initial input mode?

YES

•Is the pin4 of IC103 3.9V?

•Is the Pin32 of IC401 2.0V?

•Is the Pin4 of IC102 3.3V?

YES

• Check the PN105.

• Check the SMPS board.

• Check the IC101(RESET IC).

• Check the IC301(HD64F3062), IC301(XC10TQ80)

•Check the X701, X301.

•Check the IC701, IC301.

•Check the IC103(BA3939).

•Check the IC401(CXA2551R).

•Check the IC102(BA033S).

Check the IC514(NJM3414).

YES

•Is the pin1 of IC511 8.0V?

•Is the pin1 of IC512 8.0V?

YES

•Check the IC511(NJM7808).

•Check the IC512(NJM7808).

CDR20

System Check.

Load tray without inserting disc.

harman/kardon

Does Tray operate normally?

YES

Does Pick-up move to inside?

YES

Does Spindle Motor rotate in a moment?

YES

Does Lens move Up/Down?

YES

Does Laser turn on?

YES

After eject tray, Inset CD Disc and reloading.

Does Disc stop?

YES

Go to "Tray operating is abnormal"

Go to "Sled operating is abnormal"

Go to "Spindle opreating is abnormal"

Go to "Focus Actuator operating is abnormal"

Go to "Laser is abnormal"

Go to "Spindle control is abnormal 1"

Does Disc rotate

continuously as Disc recognition

is abnormal?

After eject tray, Inset CD-R Blank Disc and reloading.

Does Disc stop?

Does Disc rotate

continuously as Disc recognition

is abnormal?

YES

Go to "Spindle control is abnormal 2"

Go to "Spindle control is abnormal 3"

Go to "Disc recognition is abnormal"

CDR20

Tray operating is abnormal.

(Tray open/close doesn't work)

harman/kardon

Is threre Tray control signal intput?

Is three Tray drive voltage output?

•Check the Tray Connector(CN701).

•Check the Motor Line and Motor.

(IC501 pin26)

YES

(IC501 pin15, 16)

YES

•Check the connection of IC409 pin 12.

•Replace the IC409(M62352).

•Check the communication line between IC409 and IC701(MICOM).

Is TRAY_MUTE

signal"L"?(IC501 pin20)

YES

When CN701

is open, Is there Tray drive

signal output?

YES

•Check the connection of IC701 pin 25.

•Replace the IC301.

Replace the IC501(BA5983FM).

+ 59 hidden pages

Harman Kardon CDR-20 Service manual

Specifications and Main Features

Frequently Asked Questions

User Manual