HarmanKardon HD500 CD
HarmanKardon HD500 CD
Model HOSOO
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Manual 96A
SPECIFICATIONS
System Signal Detection Error Correction Sampling Frequency................................................................................................................. Quantization Channels Frequency Response Total Harmonic Distortion Dynamic Range Signal-to-Noise Wow & Flutter Line Output Level/Load Impedance Impedance Headphone Output Level/Load Power Requirements USA & Canada models General model Power Consumption Dimensions Weight (W x H x D) , Ratio Channel Separation 4-20,000 '" Compact Disc Digital Audio 3-Beam Semiconductor Laser CIRC System 44.1 kHz 16 Bit Linear 2 Channel Stereo Hz±0.5dB 0.01 % (1 kHz) 94dB 100dB 83dB (1 kHz) Immeasurable Variable, Max. 2.4V/1 Ok Ohms 25mW/32 Ohms
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Accessories
All specifications
and features
notice.
AA Battery (x 2)
harman/kardon
240 Crossways 1112-H15296Ao park West, P-096508 Woodbury, N. Y. 11797 in Japan 1850 Printed
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TABLE OF CONTENTS
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SAFETY PRECAUTIONS .•••...••..•..••••••...•.••..••..•••....••...••..• INSTRUCTIONS .•.•.••...••••.•.•.....•.........•••.•••..••••..•..... BLOCK DIAGRAM .....••...•.•...•.••.••.••......••.•.••.••.•.•..•...• REMOVING THE CABINET ........•..••....•...•.••..••..•.••..•.•.•.••.. DISASSEMBLING THE MECHANISM UNIT ..•.•..•..•.•.•.•••....••.......•••. ADJUSTMENT PROCEDURE ...•..........•......•...•..•••....•.•.•••..•. TROUBLE SHOOTING ..•......•...•..•...•.•.•••........•...•..•....... IC BLOCK DIAGRAM ...•.....•••.....••••.•••.••..•.•••.•..•••..•...••• GENERAL WIRING DIAGRAM SERVO CIRCUIT DIAGRAM MAIN CIRCUIT DIAGRAM .••..••••••••.•••....•.••..••..•••.•..••.••. ....•.••..•..••••••.••..•...•..•..•...•.. SERVO PCB ASSY - Solder Side 3 5 17 18 19 20 30 39 43 45 46 47 48 50 52 53
.•..•..••.•....•.•....••.•.....•..•••..•.•..•. •....•........•..••••..•••.•..•....•...••...•..
MAIN PCB ASSY - Solder Side _ ........•..•..•..•..•..••..••••..•.•..•..•. EXPLODED VIEW OF SET ....•.•...•...•••••.•.••..•..••.•••.....•..••.• EXPLODED VIEW OF MECHANISM UNIT •.•.•..••....••.••.•.•.•..••...•..•.. REPLACEMENT PARTS LIST .•.••.....••••.••...•.•......•••.....•.•••.••
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-2-
SAFETY PRECAUTIONS
Before returning an instrument to the customer, always make a safety check of the entire instrument, including, but not limited to, the following items: a. Be sure that no built-in protective devices are defective and/or have been defeated during servicing. (1) Protective shields are provided to protect both the technician and the customer. Correctly reo place all missing protective shields, including any removed for servicing convenience. (2) When reinstalling the chassis and/or other assembly in the cabinet, be sure to put back in place all protective devices, including, but not limited to, nonmetallic control knobs, insulating fishpapers, adjustment and compartment covers/ shields, and isolation resistor/capacitor networks. Do not operate this instrument or permit it to be operated without all protective devices correctly installed and functioning. b. Be sure that there are no cabinet openings through which an adult or child might be able to insert their fingers and contact a hazardous voltage. Such openings include, both are not limited to, excessively wide cabinet ventilation, slots, and an improperly fitted and/or incorrectly securedcabinet back cover. c. Leakage Current Hot Check - With the instrument completely re~ssembled, plug the AC line cord directly into a 120V AC outlet. (Do not use an isolation transformer during this test.) Use a leakage current tester or a metering system that complies with American National Standards Institute (ANSI) C101.1 "Leakage Current for Appliances" and Underwriters Laboratories (UU 1270, (34.6). With the instrument AC switch first in the ON position and then in the OFF position, measure from a known earth ground (metal waterpipe, conduit, etc.) to all exposed metal parts of the instrument (antennas, handle bracket, metal cabinet, screwheads, metallic overlays, control shafts, etc.l, especially any exposed metal parts that offer an electrical return path to the chassis. Any current measured must not exceed 0.5 milliamp. Reverse the instrument power cord plug in the outlet and repeat test. ANY MEASUREMENTS NOT WITHIN THE LIMITS SPECIFIED HEREIN INDICATE A POTENTIAL SHOCK HAZARD THAT MUST BE ELIMINATED BEFORE RETURNING THE INSTRUMENT TO THE CUSTOMER. AC Leakage Test d. Insulation Resistance Test (1) Unplug the power supply cord and connect a jumper wire between the two prongs of the plug. (2) Turn on the power switch of the instrument. (3) Measure the resistance with an ohmmeter between the jumpered AC plug and each exposed metallic cabinet part on the instrument, such as screwheads, antenna, control shafts, handle brackets, etc. The reading should be as shown below, If it is not within the limits specified, there is the possibility of a shock hazard, and the instrument must be repaired and rechecked before it is returned to the customer. e. Insulation Resistance Test Cold Check (1) Unplug the power supply cord and connect a jumper wire between the two pronqs of the plug. (2) Turn on the power switch of the instrument.' (3) Measure the resistance with an ohmmeter between the jumpered AC plug and each exposed metallic cabinet part on the instrument, such as screwheads, antenna, control shafts, handle brackets, etc. When the exposed metallic part has a return path to the chassis, the reading should be between 1 and 5.2 ·Megohm. When there is no return path to the chassis, the reading mustbe "infinite". If it is not within the limits specified, there is the possibility of a shock hazard, and the instrument must be repaired and rechecked before it is returned to the customer.
ANTENNA TERMINAL
§
DIVICE UNDER TEST LEAKAGE CURRENT TESTER 2'WIRE CORD
ALSO TEST WITH PLUG REVERSED (US I NG AC ADAPTER PLAG AS REQU I RED)
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GROUND
CAUTION: Before servicing instruments covered by this service manual and its supplements, read and follow the SAFETY PRECAUTIONS on this page. NOTE: If unforeseen circumstances created conflict between the following servicing precautions and a~y of the safety precautions, always follow the safety precautions. Remember: Safety First.
-3-
General Servicing Precautions a. Always unplug the instrument AC power cord from the AC power source before: (1) Removing or reinstalling any component, circuit board, module, or any other instrument assembly. (2) Disconnecting or reconnecting any instrument electtical plug or other electrical connection. (3) Connecting a test substitute in parallel with an electrolytic capacitor in the instrument. Caution: A wrong part substitution or incorrect polarity installation of electrolytic. capacitors may result in an explosion hazard. b. Do not defeat any plug/socket B+ voltage interlocks with which instruments covered by this service manual might be equipped. c. Do not apply AC power to this instrument and/or any of its electrical assemblies unless all solid-state device heat sinks are correctly installed. d. Always connect a test instrument's ground lead to the instrument chassis ground before connecting the test instrument positive lead. Always remove the test instrument ground lead last. NOTE: Refer to Safety Precautions on Page 3. (1) The service precautions are indicated or printed on the cabinet, chassis or components. When servicing, follow the printed or indicated service precautions and service materials.
(2) The Components used in the unit has a specified conflammability and dielectric strength. When replacing any components, use components which has the (... ' ~ same ratings. Components marked (,1,) in the circuit . diagram are important for safety or for the characteristics of the unit. Always replace with the appointed components. (3) An insulation tube or tape is sometimes used and some components are raised above the printed wiring board for safety. The internal wiring is sometimes clamped to prevent contact with heating components. Install them as they were. (4) After servicing, always check that the removed screws, components and wiring have been installed correctly and that the portion around the service part have not been damaged and so on. Further check the insulation between the blades of attachment plug and accessible conductive parts. Insulation Checking Procedure
Disconnect the attachment plug from the AC outlet and turn the power on. Connect the insulation resistance meter (500V) to the blades of the attachment plug. The insulation resistance between the each blade of the attachment plug and accessible conductive parts (Note 1) should be more than 1M-ohm. Note 1: Accessible Conductive Parts including Metal panels, Input terminals, Earphone jacks, etc.
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ELECTROSTATICALLY
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES 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 cornponent 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 ES 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 ES devices. 4. Use only an anti-static solder removal device. Some solder removal devices not classified as "anti-static"
SENSITIVE
(ES) DEVICES
5. 6.
7.
8.
can generate electrical charges sufficient to damage ES devices. Do not use freon-propelled chemicals. These can gene· rate electrical charge sufficient to damage ES devices. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or comparable conductive material). Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material to the chassis or circuit assembly into which the device will be installed .. CAUTION: Be sure no power is applied to the chassis or circuit, and observe all other safety precautions. Minimize bodily motions when handling unpackaged replacement ES 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 ES device).
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FEATURES
Performance Features
• 3-Beam Laser • 16-Bit Linear Digital-to-Analog Converter with Digital Filter and 88.2kHz Sampling Frequency • 4-Pole Analog Filter for Excellent Phase Response • Section Repeat • Ultrawideband, Discrete Analog Amplifiers Low 1M Distortion • Output Level Control for • Bi-Directional Track Skip • Bi-Directional Audible Cueing • Track/Time Display
Convenience Features
• Wireless Remote Control • 15-Track Programability • Auto Repeat
IMPORTANT
Before plugging the unit in, be sure to loosen the transportstion screw and the lock axle on the bottom of the unit with a screw driver. Note: • Place a cloth under the unit in order to prevent it from being scratched. • Turn the unit upside down. • The screw and lock axle can not be removed. • Be sure to tighten them by the reverse procedure before transporting the unit.
Turn
round the
(adout
5-6
times) it is
towards
completely
LOOSEN
I@
the
TIGHTEN
LOCK AXLE
Turn towards it right (180')
until
stops.
LOCK@
FREE
-5-
GENERAL INSTRUCTIONS
Safety Precautions
Be sure to observe the following precautions: • Do not cover the ventilation openings openings prevent the There-
rising excessively.
fore, do not place any objects where they will block the air flow from these openings. • Do not place the HD500 and other
• Directly on top of high power amplifiers heat generating components. • On top of carpets or blankets. • In a place where the air flow is restricted. • Inside an enclosed Failure to observe • Power plug and fires. • Unit placement the unit from dropping,
Insert the plug firmly into the socket to avoid electric shocks. When removing the power plug from the wall socket, pull only on the plug head. Never pull the cord itself. • Do not open up the cabinet
To prevent
To avoid electric shocks and fire hazards, do not open the cabinet and attempt to service or modify the unit should the cabinet yourself. Under no circumstances be opened. • Avoid touching with wet hands
Leaving
To avoid the danger of electric shocks, do not touch the electric power cord with wet hands. Dry your hands before handling the unit. spill water on the unit, conthoroughly
time, such as when you are vacationing, be sure to remove the power cord from the wall socket.
tact your sales representative or the nearest authorized Harman Kardon service station. • Do not insert any foreign objects into the jacks or the ventilation openings of the unit.
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Unit Placement
• Place the unit as far away as possible from tuners and TV sets.
This unit uses high frequency signals and therefore accidental signal leakage can cause reception interference in tuners and TV sets. If such should be the case, move the H D500 further away from the tuner or TV set. If you are using an indoor antenna, this should be replaced with an outdoor antenna. • Avoid the following well. Locations: • Subject to high temperatures 45'C). (Be especially (in excess of 113'FI time.) careful during summer locations since not only will they
Do not touch the playback surface (the rainbow colored side). Do not attach adhesive tape, stickers, label. etc. to the disc
• Subject to direct sunlight. • Excessively cold (under 32'F/O'C) • Subject to high humidity. • Close to heat sources. • With excessive smoke and dust. or other unstable posi• Disc storage • Subject to vibrations. • Tilted or uneven surfaces tioning. • Where strong magnetic fields are present.
Avoid storing the discs in locations subject to high temperature, high humidity and direct sunlight. Also do not keep discs inside a closed vehicle as it is often subject to extreme • temperatures .
Disc care
Before playing the disc, wipe off all dust, dirt and fingerprints on the playing surface with a soft cloth. Do not use benzine and record cleaners designed records. Static prevention treatments compact discs and should therefore for analog can also damage be avoided.
Only compact discs with the mark shown below can be used with the HD500.
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DIGITAL AUDIO
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Handling Precautions
• Dew formation Window frames inside a warm room during winter will rapidly accumulate dew on the surface. This unit features a precision lens element. This lens element is also subject to dew formation under the following circumstances: • When subjectto sudden changes in temperature. • When the room in which the unit placed is subject to high humidity. • When moving the unit suddenly from a cold to a warm place. The HD500 will not be able to correctly read the programs under these circumstances, and the player will not operate properly. In such cases, after turning the power switch on, wait for 20 to 30 minutes before operating the unit. • Do not remove the cabinet This unit uses an invisible laser pickup to detect the signals recorded on the compact disc. The HD500 has been designed so that the laser rays will not radiate outside. To avoid laser exposure in case the safety interlocks are defeated or out of action, do not remove the cabinet. • Be careful of the laser pickup. Although you cannot see it from the outside, a laser pickup is located under the disc tray and a precision lens is built in it. Since the laser pickup, including the lens element, is especially sensitive to dust, keep the disc tray closed when not in use. Also do not put your hand inside the unit.
Unit Care
• Wipe off the cabinet with a soft, dry cloth Do not apply alcohol, benzine, paint thinners, insecticides, other chemicals and adhesive tape to the cabinet, as these can remove the luster of the cabinet and can also impair the finish. Avoid chemically treated cloth as well.
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CONNECTIONS
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Amplifier or Receiver
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1. Using the supplied shielded cords with RCA-type plugs, connect the left (L) and right (R) OUTPUT jacks on the rear panel of the unit to the left (L) and right (R) input jacks (CD or AUX) or the TAPE playback jacks on the rear panel of the amplifier or receiver. 2. Plug the power cord of the HD500 into the convenience AC outlet on the rear panel of the amplifier or a household AC outlet.
Volume Setting
The digital recording format of compact discs enable them to accurately reproduce all peaks contained in the music signals without noise. Therefore, if attempting to adjust the volume setting as you would for analog record players and cassette tape recorders, by listening to the noise level, the sudden unexpected surge in the amplifier power may harm your speakers. Avoid excessively high volume setting.
Notes on connection • Turn off the power switch and disconnect the power cords of all components before making connections. • Make sure that the left and right jacks of the HD500 are properly connected spectively, to the left and right jacks, reor receiver. of the amplifier
• To avoid incomplete connections, be sure that the shielded cords with RCA-type plugs are fully inserted into the corresponding jacks. • Do not connect the output of the CD player to the phonograph input of the amplifier.
-9-
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o POWER
pressing
SWITCH
Press this switch to turn the power of the main unit on and off. Pressing it once will turn the power on, and it once again will turn the power off.
of
the program being played, or displays the track and index number during playback.
o PLAY/PAUSE
button, the tray onto continues onds.
BUTTON' Press this button to start playback. Pressing this button activates the pause mode. Playback when this button is pressed again. Playback
which the discs are loaded will slide out. (See page 9 for discs.)
during playback
stops if this button is held down for more than two sec-
@) OPEN/CLOSE
Press this button
Press it once to make the DISC TRAY slide out, and again to make the DISC TRAY slide in.
o PROGRAM
SELECTION
( Kl<:J ,1>1>1) 1<J<:J:.pressing this button once skips playback ward to the beginning Holding the button of the present program.
o FUNCTION
~
DISPLAY
Flashes when DISC TRAY is opened or closed. The indicator will light up when the disc has been correctly loaded and the unit is in the standby mode. It will continue to be lit during playback.
ward to the beginning of previous programs. I> 1>1: Pressing this button once skips playback forward tothe beginning ofthe next program. Holding the button down skips playback forward ginning of subsequent programs. to the be-
o REVERSE
a reduced
BUTTON
( <:J<:J ) changes
Pressing this button starts low speed reverse. Holding the button down longer than three seconds the reverse mode to high speed. Sound can be heard at level in this mode.
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Lights during repetition of one section of the disc.
o FAST-FORWARD
Lights during playback, or blinks when in pause.
BUTTON ( 1>1> ) Pressing this button starts low speed fast-forwarding. Holding the button down longer than three seconds mode to high speed. Sound
MEMORY
I
playback.
-10 -
41> REPEAT
Remote Control
repeat play-
back of the disc. Pressing this button again disables the repeat playback mode.
0. A-B
REPEAT BUTTON
Use this button to specify the beginning and end points for section repetition.
4» DISPLAY
switched
BUTTON
Press to change the display. When pressed, display is between the elapsed playback time of a track and the program and index number.
4D
MEMORY
BUTTON playharman/kardon
Used to program the memory for non-sequential back of disc tracks. .., MEMORY memory. CLEAR BUTTON
of the
~ REMOTE CONTROL SENSOR Receives signals from the supplied remote control unit.
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HEADPHONES JACK Connect the headphone plug to this jack for private listening.
4Ji) PLAY/PAUSE
Same as
BUTTON
0.
SELECTION BUTTON (I<J
.4D
41>
PROGRAM
Same as
8.
( <J <J )
-a.
[> [>I )
This control adjusts the volume level of the rear panel OUTPUT jacks and the HEADPj-lONES jack. Volume increases when turned to the right. ~ REVERSE BUTTON Same as
0.
BUTTON
~ FAST-FORWARD Same as
0. 41>. 0..
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@l REPEAT BUTTON
Same as ~A-B
REPEAT BUTTON
Same as
4». 4D.
@) MEMORY
Same as
BUTTON
• When changing the batteries of the remote control, insert the batteries with their polarity aligned according to the diagram on the back of the battery case . • 2 AA size (UM-3) batteries are recommended.
- 11 -
OPERATIONS
Loading Compact Discs
1. Press the POWER switch to turn on the power. 2. Press the OPEN/CLOSE button to slide out the DISC TRAY. 3. Place the disc label facing up. Center,the disc on the tray. 4. Press the OPEN/CLOSE button to close the DISC TRAY. Pressing the PLAY button even when the DISC TRAY is open, closes the tray and begins playback from the first program.
Disc
Tray
CAUTION Wait until the disc holder is completely open before loading the compact disc. Failure to observe this precaution can result in damage to the disc. To prevent fingerprints from getting on the disc, handle it only by the edges or center, as shown in the illustration below.
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-12 -
Playing a Disc
1. Press the POWER switch. Blinks for a few seconds.
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• The DISC TRAY will also close if step 5, pressing the PLAY/PAUSE button, is carried out instead of step 4. In this case, the unit will directly commence from the beginning of the first program. playback
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MEMORY
MIN
SEC
QD
II U
TRACK INDEX M_NO
• To Temporarily Halt Playback Pressing the PLAY/PAUSE button causes the unit to enter the pause mode. The PLAY indicator will blink. Pressing the PLAY/PAUSE pause mode and re-enters button again defeats the the play mode.
button.
• Stopping Playback When the PLAY/PAUSE than 2 seconds, enters the ready mode. • Removing a disc
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MEMORY
MIN.
SEC.
QD
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TRACK INDEX M,NO.
II
press the
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MEMORY REPEAT
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"
MIN
SEC
I
INDEX M.NO.
TRACK
II Ie
TRACK INDEX M.NO.
2. To skip backward,
press the
I<J <J
Readout is completed.
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MEMORY
", ,
GD
"
MIN.
SEC.
I
INDEX M.NO.
G
using the I> [>l
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MEMORY
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GD
REPEAT
, MIN. ,
SEC.
:J
TRACK
INDEX M.NO.
TRACK
• When the DISC TRAY is open, the track number is set 5. Press the PLAY/PAUSE button. or I<J <J buttons, and the operation will be carried out when the DISC TRAY is closed using the PLAY/PAUSE Playback begins. button.
MEMORY
MIN.
SEC.
~ I REPEAT I
I I
TRACK
INDEX M.NO.
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-13 -
Audible Search
This feature can allows you to search either forward of backward to find a desired location. Inaddition, low volume audio can be heard. 1. To sear~h forward, press and hold the C>C> button.
Moves forward rapidly.
MEMORY
~ ~
INDEX M.NO
desired track.
I ~ ~
MEMORY
I
3. Press the MEMORY button.
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• Rapid, non-audible search, both fast-forward and backward, can be activated from pause mode.
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MEMORY
MIN
SEC
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The memory nu~~~:
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,,"TRACK
is displayed
for 3 seconds.
The MEMORY indicator blinks for approx. 3 seconds when the memory is being registered.
4. Repeat steps 2 and 3. A maximum oti 5 tracks can be entered into the memory. (Full is displayed when a 16th entry is attempted.) 5. Press the PLAY/PAUSE button to begin memory playback . • When clearing the memory, press the MEMORY CLEAR button . • If the C> 1>1 or I<l <l button are pressed during memory playback, only those tracks registered in the memory will be skipped. The contents of the memory may be verified by doing this while in the pause mode.
-14 -
Repeat Playback
This feature allows you to repeat all tracks on the disc, or the programs selected in memory. To activate, press the REPEAT button.
MIN
SEC
~
-'
-'
~
lights up.
TRACK
INDEX M.NO
Repeat indicator
Timer Playback
When the disc is set and the power is turned on, playback will begin automatically. automatically In this way, operation of this unit together with a timer allows playback to begin from a desired time.
-15-
TROUBLESHOOTING CHECKLIST
Check items listed below before requesting repair service. This may prove time saving in the long run.
The unit yvill not play although the disc has been loaded.
• The disc has been loaded upside down. • The disc is dirty. • The disc is scratched. • The disc is excessively warped. • Condensation has formed on the disc or optical head. • The disc does not conform to the appropriate standards.
• Reinsert the disc. • Clean the disc. • Replace the disc with a new one. • Replace the disc with a new one. • Wait for 20-30 minutes before operating the unit. • Usea different disc.
Nothing happens when function keys are pressed. The display has characters that are neither numbers or letters.
-16 -
BLOCK DIAGRAM
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-17 -
Lift
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Figure 1 arrows using the index fingers.
Figure 4
2. Removal of Servo PCB Assembly The servo PCB rises when the bottom panel (seven screws) and the two (B) screws are removed. (Figures 2 and 3) Remove the PCB supports and connectors (P101, P102, P103, W202, and W203) to allow for removal of the servo PWB assembly.
4. Removal of Front PCB Assembly Remove the front panel, connectors P401 and P402, the three screws (C), and catches (0). (Figure 5) 5. Removal of Main PCB Assembly Remove the cover and the five (E) screws and (G) screws holding the output jack (Figure 5).
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Figure 2
Iii
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Figure 5
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6. Removal of Mechanism Unit Remove the cover, the four (F) screws, and the P201 P204 connectors on the main PCB assembly.
As Seen From
Below
-18 -
.),
Figure 6
(1-3) Pull out the table then remove the (K) screw, allowing for removal of the optical pickup rail by rail. (Figure 7)
NOTE: The portion of the Optical pickups available at your parts center is short-circuited and soldered. Figure 8
2. Removal of Spindle Motor (Figure 7) (2-1) Perform instructions (1-1) and (1-2) for removal of the optical pickup. (2-2) Use a 2.0mm hexagonal wrench to loosen the special screw (I) and remove the turntable. (2-3) Remove the two (J) screws to allow for removal of the spindle motor. (Use the turntable base spacer jig to set to the height of the turntable upon assernblv.)
Figure 7
-19
ADJUSTMENT PROCEDURE
(
Voltmeter Distortion Meter Frequency Counter Optical Power Meter
Test Discs Philips Test Sample 5 Philips Test Sample5A Sony Typeill 814125-2 814126-2 (Non-Scratched) (Scratched)
-20-
VRI03
w
Gain
0
TPI04
(Kick Pulse)
000
TPI02 (GND) TPI03
(Tracking)
TPIOI
(Focus)
~
VR104
Tracking Offset
Tracking
0
Servo PCB
o o
I
TPI07(GND) dlVRIOI
r J()
TPI08
CU
(Tracking
Pl03
Optical Pickup Laser Connector (BLK)
--o
TPI06
dl VRI02
9_j E-F
R184
0
Optical
·PIOl
Pickup
('
Balance
TPl05
Actuator
Connector
o-C:::::)-o
VRl02
Preset Position
o o
TPl09 TPllO
Figure 9
NOTE:
-21 -
Main PCB
P201
~ 0 i:::'p",,,,,
(
TP203
I®I
o
L201
0 TP204 (GND)
<;?P202 r-1-Y-M-3S-31------,)
P202
(GND)
1....
--'J
,PD 1508
Figure 10
-22 -
3. Optical Pickup laser Power Check (1) Short-circuit TP1 05 and TP106 located on the servo PWB. (2) Remove the cabinet, place the optical power meter against the pickup, and check that the power is between 0.15mW and O.4mW.
4. Adjustment
of Main PWB
4-1 VCO Frequency Adjustment (Set is No signal). (1) Connect the frequency counter to TP205 (ClK) and TP204. (Figure 12) (2) Remove wire connector W201, turn the power switch on, and short-circuit TP201 and TP202. (3) Rotate the l201 core and adjust so that the frequency counter shows a value of 4.322MHz ± 0.005MHz. (4) After adjusting, turn the power off and connect the W201 wire connector.
Frequency
Counter
Figure 12
-23-
5. Adjustment
5-1 Setting of Initial Volume Before adjusting, preset all semi-fixed resistors. Mechanically center VRl 01,102, 103, 104 ....
jV
5-2 Tracking Offset Adjustment (1) Rotate VR103 clockwise. (2) Connect TP105and TP106, and without inserting a disc adjust VR104 so that the voltage of TP103 (tracking coil output) and TP102 (GND) is of 0 ± 5mV. (3) Disconnect TP105 and TP106, then preset VR103 to the mechanical center.
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Oscilloscope
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5-3 Focus Offset Adjustment: with power switch off and no disc. (1) Check that the optical pickup connector P 103 is properly connected. (2) Short-circuit TP109 and TPll0, and remove the short-circuited portion of the optical pickup using a soldering iron. (Take sufficient measures against static electricity) (3) Connect the voltmeter to both ends of R194 (50n). (4) Connect TPl 05 and TP106 together. (Laser On) (5) Turn the power switch on compute a current from voltage on both ends of R 184, and check that the difference compared to the optical pickup indication (figure 14) is within +10mA for the + side and -10mA for the - side. Next turn the power switch off and disconnect the voltmeter. (6) Turn the power back on, set the Philips Test Sample 4 test disc, and observe the TP201 output waveform (eye pattern). (7) Adjust VR10l so that the eye pattern level becomes high and the waveform becomes distinct (so that the lines do are not thick). (Figure 13) Focus Offset VR at Maximum (Level is high but waveform is unclear)
Figure 13
-24-
Day
Month
Lot No.
00
o o
o o
Decimal place
For the month, X, Y, and Z are used in place of 10, 11, and 12.
lop Indication
lOs
ls
place
place
5-4 E-F Balance Adjustment (Supplementary Beam Balance Adjustment) (1) Turn the power off and connect TP105 and TP106. (2) Connect the oscilloscope between TP201 (eye pattern output) and TP202 (GND), and also between TP108 Tracking error and TP107 (GND). (3) Turn the power switch, insert the Philips Test Sample 5 test disc and playback from the first selection. selection. (4) Connect the main PWB TP402 (reset pin) and TP401 (+5V). (As the microprocessor is in the Reset mode, the LED does not light) (5) Rotate VR103 (tracking VR) clockwise.
a) Oscilloscope Ranges CHl .... CH2 .•.. lV 0.2V
Range of oscilloscope
C'"
Voltage (AC):
lV 0.2V
d) Sweep Range:
(6) Observe the tracking error waveforms (Figure 15) and adjust VR102 so that the GND line is positioned at exactly half the waveform poP value, (7) Turn the power switch off, disconnect the oscilloscope, TP401 and TP402, and set VR103 to the mechanical center.
ImS
tt-iI;---tt!;:+-HI-Iff-1fr-+*-f+.H~il-1
50%
GN D li ne
50%
Tracking
Error Output
Figura 15
-25-
5-5 Tracking Gain Adjustment (1) Insert the Philips Test Sample 4 test disc (nonscratched), observe the noise voltage on the voltmeter, and adjust VR103 so that the noise voltage on TP103 and TP1 02 is of 0.3V RMS ± 0.01 V. (Figure 16)
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5·6 Kick Gain Adjustment (1) Connect TP201 (eye pattern) and TP202 (GND) to CH1 on the oscilloscope, and TP104 (lens kick pulse) and TP102 (GND) to CH2. (2) Insert the Philips Test Sample 4 test disc and check the size of the TP201 (eye pattern) output waveform. (Figure 17) (3) Pause at selection 10 on the Philips Test Sample 4 test disc. Oscilloscope Range: Voltage Range (AC): CH1 1V \ CH2 2V Sweep Range: 0.2mS Set a trigger on the leading edge of the TP104 waveform on CH2 (lens kick) and observe the TP201 waveform. (Figure 18)
~------
Range of oscilloscope---·----,
Figure 16
A:· f
-6-=
Use the plugs setting Voltage range (AC): channel 1 channel 2 Sweep range: O.trns 1V 2V
p-p
2.0V ±O.5V
Figure 17
Eye Pattern
-26-
Pause Waveform
O.2ms/diV
f---i
CUE Waveform
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TP201 IIIIlIII
Waveform
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lV/diV
If
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f
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1-.,
TP201
Waveform
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V
~I TP104 Waveform
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TP104 Waveform
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REV Waveform
R EW Waveform
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TP201 ~\~UI,I
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Waveform
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Waveform
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H-I
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TP104
Waveform
TP104
Waveform
FF Waveform
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Waveform
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TP104 Waveform
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Figure 18 Eye Pattern Waveforms Upon Track Jump
-27 -
6. Mechanism Unit Adjustment 6-1 Adjustment of Turntable Height (Figure 16) (1) Loosen screw I and insert the turntable base spacer. (2) Rotate the turntable, check that there are no gaps or rattling, then tighten screw I (3) If there is no turntable base spacer, adjust to a height of 18.8mm.
Figure 19
-28 -
7. Operation Check
7-1 Playability Use the Philips Test 5A (scratched) test disc, play the following portions and make sure no tracks are jumped. (1) Wedge (In.terruption) 700 Jim Selection 8 0'00" - 0'30" (2) Black Spot (Black Dot) 600Jim Selection 13 4'10"-Selection14 0'30" (3) Fingerprint Selection 19 0'00" - 0'30" 6-2 Discs for Adjustments Adjustment 1 Frequency Response Disc SONY TEST CD TYPE III SONY TYPE III Selection 1 SONY TYPE III Selection 1 PLAY/PAUSE SONY TYPE III Selection 39 - 41 SONY TYPE III Selection 30 (L), Selection 34 (R) Check 20Hz - 20kHz +0.5 dB -0.7 0.05% or below
Distortion Rate
SIN
93dB or greater (39) 1kHz -Q.37dB ±0.5dB (40) 5kHz -4.53dB ±0.5dB (41) 16kHz -9.04dB ±0.5dB 75dB or greater
Emphasis Response
Cross Talk
-29-
TROUBLE SHOOTING
1. Does not initialize "E" (error) appears on display YES --------..... Door close switch defective
YES
• • •
Pickup inner switch defective Check pickup slide mechanism (rack installation etc.) Check pickup FEED motor and circuit Check spindle motor driving circuit Spindle motor defective Friction between disc and disc holder
NO
• • •
NO
• •
NO • •
Check focus search circuit Check IC201 (12 pin) Pickup defective (laser)
-------...
NO
YES NO
·
• • •
Check pickup connector Pickup defective (actuator) Check Check Check Check focus offset adjustment for improper turntable height R F pre-amp circuit pickup (photodiode)
-------I~.
---------...
NO • •
Focus offset adjustment improper Pickup objective lens dirty Check RF pre-amp circuit, RF circuit
f
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/
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~ ~ ~ r-,
"J."'-
-,
r-.
V IX /
Eye Pattern
-30-
1
Is bit synchronization normal? ------Is TPl 04 kick pulse waveform normal? --------.
c
NO
....
•
•
PLL adjustment
Friction
improper
NO
• Check tracking control circuit Check IC201 control pin
Bit Synchronization
Waveform
I\/' A
j 'V' V II'
'iiI."
r~:
Pause Waveform
I-
f-...
J
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,
Cue Waveform
....:..;;...;.;..
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't
....
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f--
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t,
l
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Rewind Waveform
FF Waveform
!
1\
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±
,,"", I ........
....
i
t
I
- 31-
....
NO
NO
YES
.....
IC301 defective
NO
•
NO
IC202 defective
....
IC303 defective
pi'
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1/
IC301 Pin 1 Waveform (Test Disc: Sony Type III, 1st selection)
-32
'I
3. le201
Terminal
Functions
Terminal number 1 2 3 4
Outline of functions
The lC resonance circuit is connected between these terminals. These terminals are used for the VCO clock oscillation (average8.6436MHz). This is the VCO clock control output terminal. This sets the VCO clock oscillation circuit so that the frequency increases when the average DC voltage between these terminals is high. These are the grounding terminals.
I
5 20 6 7
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vcc
VSS
I I 0 0
I
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EFMX EFMX
8 9
EFMI SYEO
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Connect to the EFM signal slice level control circuit, This is the arnplificatlon-lirnited EFM signal output terminal. 8> 7. The gain of 7 > 6 is 15, Input the EF I signal (1 - 2VPP) into this terminal This is the monitor output terminal that gives a "H" level signal when the synchronization signal of the EFM pattern and the synchronization signal of the internal counter correspond. These are the PWM output terminals, connected to the disc motor drive circuit. It is not possible for both terminals to register "H" simultaneously. This is the focusing output terminal. Based on the focus error signal, a "L" signal will be input when the focus point is reached. A "H" signal will be entered into this terminal when reflected light is received. The EFM envelope signal (amplitude logic level) is entered into this terminal. The tracking error signal (amplitude logic level) is entered into this terminal. This test terminal is to be grounded, and contains pull-up resistors. This test terminal is ungrounded, and contains pull-up resistors. This is the output terminal that switches off the tracking signal of the tracking servo circuit. This output terminal minimizes the gain of the tracking servo circuit. This output terminal holds the tracking error signal of the tracking servo circuit while KP+ or KP- (see below) are being output. These output terminals are for the track kick function, and are connected to the tracking servo circuit, This output terminal is used to switch off the input signal of the feed servo circuit. These output terminals are for the high-speed feed function, and are connected to the feed servo circuit. This request output terminal is connected to /-lCOM, and requests that data data be sent from SVC > /-lCOM.
I 0
i
I I
10 11 12 13
i i
0 0 0 1+
14 15 16 17 34 18
I I
I I I 1+ 1+ 0
--
TEST TCl
TROF
19 20
TRGl TRHD
0 0
22 23 24
KP + KP FEOF
0 0 0
25 26 27
FEM + FEM WO
0 0 0
-33-
Terminal number 28
I/O
Outline of functions This output terminal is connected to j.LCOM, and is used for the switching of the data transmission mode. When RfW = "L", data is transmitted from SVC > j.LCOM, and when RfW = "H", data is transmitted from j.LCOM >SVC. This data output terminal is connected to j.LCOM. When RfW = "L", data can be transmitted from SVC > j.LCOM according to the SCK clock input. This data input terminal is connected to j.LCOM. When R/W = "H", data is transmitted from j.LCOM > SVC according to the SC key clock input. Connected to j.LCOM, this terminal is for the clock input, required for data transmission. This is the frame synchronization signal (7.35kHz) input terminal, connected to the SCG output. This is the crvstal clock (4.321 MHz) input terminal, connected to the SGP output. Connected to j.LCOM, this terminal is for the clock input, required for the subcode transmission. It is disconnected when not being used. This is the VCO frame synchronization signal (average 7.35kHz) output terminal, connected to j.LCOM. Detecting the change from "H" > "L", this can be used as a request signal, requesting that the subcode be transmitted from SVC > j.LCOM. This is the subcode output terminal, connected j.LCOM. The subcode can be transmitted from SVC > j.LCOM, according to the RCK clock input. This is the synchronization signal output terminal for the serial signals (see below), connected to the SGP input. This is the serial signal output terminal for the 8 bit EFM demodulation signals and the 5 bit control signals, connected to theSGP input. This is the VCO clock (average4.3218MHz) output terminal, connected to the SGP input.
29
DOUT
30
DIN
31
SCK
32
XFSY
33
¢4
35
RCX
1+
36
VFSY
37
SUB
38
DSY
39
DATA
40
CK
-34-
4. IC202 Terminal Functions Terminal number 1 17 2 3 7 8 4 Terminal code VSS VSS TEST 1 TEST 2 TEST3 TCl I CK
I
I/O I I 1+ 1+ 1+ 1+ I
I
5 DATA 6 OSY
I I
I I I :
This is the VCO clock (average4.3218MHz) input terminal, connected to the SVC output. This is the serial signal input terminal for the 8 bit EFM demodulation signals and the 5 bit control signals, connected to' the SVC output. This is the synchronization signal input terminal for the serial signals (seeabove), connected to the SVC output. This is the crystal clock (4.3218MHz) output terminal, connected to the SVC input. This is the frame synchronization signals (7.35kHz) output terminal, connected to the SVC input. (During test operations, the synchronization can be resynchronized by setting this terminal to the "L level".) These are the address output terminals, connected to the RAM address terminals.
'!
I
,
I
I
I
0
e:
I I
4>4
~;:.,.:;
I I
10
XFSY
I/O
11 12 13 14 15 16 18 19 20 21 24 22
AO Al A2 A3 A4 A5 A6 A7 A8 A9 Al0 WE
0 0 0 0 0 0 0 0 0 0 0 0
This is connected to the RAM WE terminal. When a "L level" signal is registered, the RAM will be set to the WRITE mode. This is connected to the RAM OE terminal. When a "L level" signal is registered, the RAM will be set to the READ mode. These are connected to the RAM data terminals. The output mode is set when the cycle at the data input terminal is WE = "L", and the input mode is set when the cycle is WE = "H".
23
OE
25 26 27 28 29 30 31 32 33
08 07 06 05 04 03 02 01 OEP
This is the outputterminal for the audio frequency characteristics switching signals of the audio filter. The emphasis will be requiredwhen "H" is registered.
-35 -
Terminal number 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52
Terminal code 01 02 03 04 05 06
Q7
I/O 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 I/O
!
Outline of functions Connected to the OAC input, the parallel signals are output by way of the internal digital filter form these terminals. The output is in alternation from the left and right channels. The output rate for each channel is 88.2kHz. Connect either 016 or (016), according to the OAC to be used.
08 09
OTD
on
Th is is the crystal clock (2.1609MHz) output. This is the serial signal output for the OAC. Using a ¢2 clock beat rate, the signals are output from LSB in the order of L channel 24 bit - R channel 25 bit. Th is is the synchronization signal output for the above serial signals. The level is "H" for L channel and" L" for R channel. This test terminal contains pull-up resistors, andis normally disconnected. Using a "L" signal, it is also possible to input serial signals with the same format as the above serial signals from the SOO terminal into the digital filter. This monitor output terminal depicts the Cl and C2 error correction operation mode.
I
0
53
SOSy
56
TEST
1+
54 55 57 58 59
0 0 0 0 0
This is the output terminal for the channel allocation signal of the OAC analog output. "H" is for the R channel, and" L" is for the L channel. Th is is the degliche signal for the respective channels of the OAC analog output. This is the +5V power supply terminal. A crystal oscillator is connected between these terminals, which are used for the crystal clock (8.6436MHz) oscillation.
60 61 62 63 64
0 0 I I 0
-36-
5.
IC401 Terminal
Functions
Terminal number 1 2 3 4 5 6 7 8 9 10 11 12 13
I/O 0 0 0 0 0 I I I I 0 0 0 0
Outline of functions Internal clock output, open before use 7 segment display (a) 7 segment display (b) 7 segment display (c) 7 segment display (d) Key matrix input Key matrix input Key matrix input Indicates reception of remote control data 7 segment display (e) 7 segment display (f) 7 segment display (g) 7 segment display (h) - dot point - DISC, MEMORY Display dynamic scan (minutes 10s place) Display dynamic scan (minutes 1s place) Display dynamic scan (seconds 10s place) Display dynamic scan (seconds is place) Reset input Oscillator circuit input Power supply input Oscillator circuit output Interrupt input, connected to GND before use Time data read out demand Serial communications clock Command transmission line (7508 -+ 3531) Time data transmission line (3531 -+ 7508) Remote control data (parallel bit 1) Remote control data (parallel bit 3) Remote control data (parallel bit 3) Serial communications direction control (-+ YM3531)
Active Level H "L" "L" "L" "L" "L" "L" "L" "H" "L" "L" "L" "L"
SO
S1 S2
-S4
IR
-S5
-S6 S7
14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
--
TO T1 T2 T3
0 0 0 0 I I I 0 I I 0 0 I I I I 0
f,'
"H" Active "L" Pulse "H" "H" Active "H" "H" "H" H (command) L (data)
SCK SO SI RDO RD 1 RD 2
R/W
-37
Terminal number 31 32 33 34 35 36
I/O I I I I 0 0 0 0
Outline of functions Disc tray closed position detection switch input Disc tray open position detection switch input Pickup inner circumference position detection switch input Remote control data (parallel bit 4) Disc tray closing direction driving output Disc tray opening direction driving output Pickup laser output signal Display output (i) REPEAT A <+ B, REPEAT TIME SPACE PLAY/PAUSE GND pin Event input, connected to GND before use
Active Level "L" "L" "L" "H" "H" "H" "H" "L"
---
37
38
--
S8
39 40
Vss EVENT
I I
L H
-38 -
IC BLOCK DIAGRAM
L---+----+--+--OOUT
10
IC BA4558 IC102,103,104,105,106
vss
OVT XIN
VDO
_4.XFSY
RI L
SWR.
SWL
svc
CK.
DATA.
DSY
AO
.... AIO
CI Fl. C2Ft,
CIF2 C2F2
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XI
X2
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SO/P02
TIMER/EVENT POO-P03
P10-P13
P20-P23 PSTB/P20 PTOUT/P21 GENERAL D (4) H(4J PROGRAM MEMORY 4096 x 8 BITS INSTRUCTION DECODER P50-P53 STACK REGISTERS P30-P33 E(4) L(4) P40-P43 POINTER (8)
C.l
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208 x4 BITS
P60-P63
Cli
Cl2
VPP
VSS
RESET
P70-P73
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VOD
(TOP VIEW)
A OUTPUT A-INPUT
CK. DATA, OSY ) SGP
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A+
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EFMX,
EF'i:i'X
EFMI $YEO
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COM
IC BA4560 IC10l
X'FSy
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DM-
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13
12
II
10
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TER
R/W
we
FEor, FEN+.FEM
7
GND
ICIlPD40llBC IC304
+VDD
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IC PCM53JPV-2 IC301
-41 -
t ov i
A8
ADDRESS INPUT
.
L._____~
vee ts v 1
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J
IC HM6116P-4 IC203
Voo 1- 2 DECODER
IC M5017P 1C402
PHOTO
Vss VEE
DIODE
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OUTPUT
XO
XI
SWITCH IN lOUT
YO Y
YI
COMMONS OUT / IN
ZO
Z ZI
IC HD14053BP IC302,303
IC MPC1473HA IC601
-42 -
DATA 110
A2 AI AO· AIO
OE
__ J
IC HM6116P·4 IC203 Voo
GND(OV)
XO X XI YO Y YI ZO Z ZI COMMONS OUT.' IN
SWITCH IN / OUT
IC HD14053BP IC302,303
-42-
(4.5-8V)
(OV)
SERIAL
CIRCUIT
IC M5017P 1C402
PHOTO DIODE
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SHIFT
IC J..!PC1473HA IC601
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60Hz
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W402
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W203
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W202
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SPINDLE
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Note: The voltage values +15 and -15 are indicated as +8 and -8 respectively in the schematic.
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109,110
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PRODUCT SAFETY SHOULD BE CONSIDERED WHEN COMPONENT REPLACEMENT IS MADE IN ANY AREA OF A UNIT. THE Lt BESIDE A PART IN THE PARTS LIST THE SCHEMATIC DIAGRAM DESIGNATES COMPONENTS IN WHICH SAFETY CAN BE OF SPECIAL SIGNIFICANCE. IT IS PARTICULARLY RECOMMENDED THAT EXACT CATALOGED PARTS BE USED FOR REPLACEMENT OF COMPONENTS WHICH ARE DESIGNATED BY A Lt. IN THE PARTS LIST AND THE SHADED AREAS ON THE SCHEMATIC DIAGRAM. USE OF SUBSTITUTE REPLACEMENT PARTS WHICH DO NOT HAVE THE SAME SAFETY CHARACTERISTICS AS RECOMMENDED IN FACTORY SERVICE INFORMATION MAY CREATE SHOCK. FIRE OR OTHER HAZARDS .
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