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CDC-685/CDC-906
CDC-585/CDC-506
CDC-585/CDC-506/CDC-685/CDC-906
COMPACT DISC PLAYER
CDC-585/CDC-506
CDC-685/CDC-906
SERVICE MANUAL
IMPORTANT NOTICE
This manual has been provided for the use of authorized YAMAHA Retailers and their service personnel.
It has been assumed that basic service procedures inherent to the industry, and more specifically YAMAHA
Products, are already known and understood by the users, and have therefore not been restated.
WARNING: Failure to follow appropriate service and safety procedures when servicing this product may
result in personal injury, destruction of expensive components, and failure of the product to
perform as specified. For these reasons, we advise all YAMAHA product owners that any
service required should be performed by an authorized YAMAHA Retailer or the appointed
service representative.
IMPORTANT: The presentation or sale of this manual to any individual or firm does not constitute authoriza-
tion, certification or recognition of any applicable technical capabilities, or establish a
principle-agent relationship of any form.
The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research,
engineering, and service departments of YAMAHA are continually striving to improve YAMAHA products.
Modifications are, therefore, inevitable and specifications are subject to change without notice or obligation to
retrofit. Should any discrepancy appear to exist, please contact the distributor's Service Division.
WARNING: Static discharges can destroy expensive components. Discharge any static electricity your body
may have accumulated by grounding yourself to the ground buss in the unit (heavy gauge black
wires connect to this buss).
IMPORTANT: Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply
power to the unit.
s CONTENTS
TO SERVICE PERSONNEL ..................................... 1~2 IC DATA ................................................................ 19~23
PREVENTION OF ELECTROSTATIC DISCHARGE TO DISPLAY DATA .......................................................... 24
STATICALLY SENSITIVE (ES) DEVICES ................... 3 IC BLOCKS ........................................................... 25~26
FRONT PANELS ........................................................... 4 PIN CONNECTION DIAGRAM ................................... 27
REAR PANELS ............................................................. 5 BLOCK DIAGRAM ................................................ 28~29
SPECIFICATIONS ......................................................... 6 PRINTED CIRCUIT BOARD ................................. 30~37
INTERNAL VIEW .......................................................... 6 CDC-585/CDC-506 SCHEMATIC DIAGRAM ...................... 38
DISASSEMBLY PROCEDURES .............................. 7~9 CDC-685/CDC-906 SCHEMATIC DIAGRAM ...................... 39
MAIN P.C.B. CHECK .................................................. 10 PARTS LIST .......................................................... 40~54
STANDARD OPERATION CHART ...................... 11~12 GREASE APPLICATION DIAGRAM .......................... 55
TEST MODE .......................................................... 13~15 REMOTE CONTROL TRANSMITTER ........................ 56
ERROR MESSAGES ............................................ 16~18 PARTS LIST FOR CARBON RESISTORS ................ 57
100741
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s TO SERVICE PERSONNEL
1. Critical Components Information AC LEAKAGE
Components having special characteristics are marked ! ! WALL EQUIPMENT TESTER OR
OUTLET UNDER TEST EQUIVALENT
and must be replaced with parts having specifications equal
to those originally installed.
<
2. Leakage Current Measurement (For 120V Models Only)
When service has been completed, it is imperative to verify
that all exposed conductive surfaces are properly insulated INSULATING
from supply circuits. TABLE
q Meter impedance should be equivalent to 1500 ohm shunted
by 0.15µF.
q Leakage current must not exceed 0.5mA.
q Be sure to test for leakage with the AC plug in both
polarities.
CAUTION: USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE
SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.
THE COMPACT DISC PLAYER SHOULD NOT BE ADJUSTED OR REPAIRED BY ANYONE EXCEPT PROPERLY
QUALIFIED SERVICE PERSONNEL.
WARNING: CHEMICAL CONTENT NOTICE!
The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic
(where applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency
(and possibly other entities) to cause cancer and/or birth defects or other reproductive harm.
DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY
REASON WHATSOEVER!
Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or
expose eyes to solder/flux vapor!
If you come in contact with solder or components located inside the enclosure of this product, wash your hands before
handling food.
WARNING: Laser Safety
This product contains a laser beam component. This component may emit invisible, as well as visible radiation, which
may cause eye damage. To protect your eyes and skin from laser radiation, the following precautions must be used
during servicing of the unit.
1) When testing and/or repairing any component within the product, keep your eyes and skin more than 30 cm away from
the laser pick-up unit at all times. Do not stare the laser beam at any time.
2) Do not attempt readjustment, disassemble or repair of the laser pick-up, unless noted elsewhere in this manual.
3) CAUTION: Use of controls, adjustments or performance of procedures other than those specified herein may result in
hazardous radiation exposure.
Laser Emitting conditions:
1) When the Top Cover is removed, and the POWER SW is turned to the "ON" position, the laser component will emit a beam
for several seconds to detect if a disc is present. During this time (5 - 10 sec.) the laser may radiate through the lens of
the laser pick-up unit. Do not attempt any servicing during this period!
If no disc is detected, the laser will stop emitting the beam. when a disc is set, you will not be exposed to any laser
emissions.
2) The laser power level can be adjusted with the VR on pick-up PWB, however, this level has been set by the factory prior to
shipping from the factory. Do not adjust this laser level control unless instruction is provided elsewhere in this manual.
Adjustment of this control can increase the laser emission level from the device.
1
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PROTECTION OF EYES FROM LASER BEAM DURING SERVICING
This set employs a laser. Therefore, be sure to carefully
follow the instructions below when servicing.
1. Laser Diode Properties
q Material : GaAlAs
q Wavelength : 780 nm
q Emission Duration : Continuous
q Laser Output : max. 44.6 µW*
* This output is the value measured at a distance
of about 200 mm from the objective lens
surface on the Optical Pick-up Block.
2. When checking the laser diode emission, keep your
eyes more than 30 cm away from the objective lens.
Optical pick-up
VARO! : AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA NÄKYMÄTTÖMÄLLE
LASER-SÄTEILYLLE. ÄLÄ KATSO SÄTEESEEN.
VARNING! : OSYNLIG LASERSTRÅLNING NÄR DENNA DEL ÄR ÖPPNAD OCH SPÄRREN ÄR URKOPPLAD.
BETRAKTA EJ STRÅLEN.
B, G, R models
CAUTION - VISIBLE AND / OR INVISIBLE LASER RADIATION
WHEN OPEN. AVOID EXPOSURE TO BEAM.
VARNING - SYNLIG OCH / ELLER OSYNLIG LASERSTRÅLNING NÄR
DENNA DEL ÄR ÖPPNAD. STRÅLEN ÄR FARLIG.
VARO ! AVATTAESSA OLET ALTTIINA NÄKYVÄLLE JA / TAI
NÄKYMÄTÖMÄLLE LASERSÄTEILYLLE.
ÄLÄ KATSO SÄTEESEEN.
VARNING - SYNLIG OCH / ELLER OSYNLIG LASERSTRÅLNING NÄR
DENNA DEL ÄR ÖPPNAD. BETRAKTA EJ STRÅLEN.
VORSICHT ! SICHTBARE UND / ODER UNSICHTBARE
LASERSTRAHLUNG WENN ABDECKUNG GEÖFFNET.
NICHT DEM STRAHL AUSSETZEN.
B, G, R models
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s PREVENTION OF ELECTROSTATIC DISCHARGE (ESD) TO
ELECTROSTATICALLY SENSITIVE (ES) DEVICES
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 electro static discharge
(ESD).
1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on your body by touching
a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap, 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 (ESD protected)" can generate
electrical charge sufficient to damage ES devices.
5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices.
6. 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).
7. Immediately before removing the protective material from the leads of a replacement ES divice, 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.
8. 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 (ESD) sufficient to damage an ES device).
Grounding for electrostatic breakdown prevention
1. Human body grounding.
Use the antistatic wrist strap to discharge the static
electricity from your body.
2. Work table grounding.
Put a conductive material (sheet) or steel sheet on the area Anti-static wrist strip
where the optical pickup is placed and ground the sheet.
1M
Caution:
The static electricity of your clothes will not be grounded
through the wrist strap. So take care not to let your clothes
touch the optical pickup.
Conductive material
(sheet) or steel sheet
3
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s FRONT PANELS
q CDC-585/CDC-506
q CDC-685/CDC-906
q REMOTE CONTROL TRANSMITTER
q CDC-585/CDC-506 q CDC-685/CDC-906
CAUTION FOR
TRANSPORTING THIS UNIT
When transporting this unit, first remove
all discs from the disc tray and close the
tray by pressing the OPEN/CLOSE but-
ton, and then switch off the power after
you confirm that the display has turned
as follows.
Never switch off the power if the display
does not turn as above, otherwise the
unit will become damaged during
transport because the internal
mechanism is not locked.
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s REAR PANELS
w U, C models
CDC-685 ONLY
w R model
w A model
CDC-685 ONLY
w B, G model
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s SPECIFICATIONS s INTERNAL VIEW
s AUDIO SECTION
q P.C.B. MAIN (2)
w CLAMP ASS'Y
Output Level (1kHz 0dB) 2.0±0.5V e CM-230 UNIT (CDC-585/CDC-506)
S/N Ratio 106dB
e CM-240 UNIT (CDC-685/CDC-906)
Dynamic Range 96dB
r P.C.B. MAIN (1)
Harmonic Distortion+Noise (1kHz) 0.003%
t TRAY ASS'Y
Frequency Response (2Hz~20kHz) ±0.5dB
Headphone Output (CDC-685/CDC-906 only) 2 3 4 1
150, 1kHz, 20dB Input 200±40mV
s GENERAL
Power Supply
U, C models 120V AC 60Hz
B, G models 230V AC 50Hz
A model 240V AC 50Hz
R model 110/120/220/240V AC 50/60Hz
Power Consumption 12W
Dimensions (W x H x D) 435 x 116 x 404 mm
(17-1/8" x 4-9/16" x 15-7/8")
Weight 5.85kg (12 lbs 12 oz)
Accessories Pin plug cord
Remote control transmitter
Battery: x2 (Size "AA", R06)
* Specifications subject to change without notice.
U ........ USA model B ........ British model
C ........ Canadian model G ........ European model
A ........ Australian model R ........ General model
5
q DIMENSION
(1/4")
6
(15-1/2")
(15-7/8")
394
404
(3-15/16") (3/16")
4
(4-9/16")
100
116
(5/8")
435 (17-1/8")
16
Unit : mm (inch)
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s DISASSEMBLY PROCEDURES (Remove parts in the order as numbered.)
1. Removal of Top Cover 4. Removal of Table
a. Remove 4 screws ( q ) and also 3 screws ( w ) as a. Remove 1 screw ( t ) and then remove the Support/
shown in Fig. 1. T as shown in Fig. 1.
b. Remove the Plate/Table as shown in Fig. 1.
2. Removal of Clamp Ass'y c. Remove 1 screw ( y ) and then take off the Table as
a. Remove 2 screws ( e ) as shown in Fig. 1. shown in Fig. 1.
q Precaution for installation of the Tray Ass'y.
3. Removal of Tray Ass'y On Tray Ass'y setting.
a. Remove 1 screw ( r ) as shown in Fig. 1. Check the Direction of marking "v" on gear
b. Turn Gear/L0 as shown in Fig. 2 counter clockwise according to this drawing.
gradually until immediately before the tray starts to
move and stop it there. Gear/L0
CAUTION : Gear/L0, if turned counter clockwise con-
tinuously, will mesh with the gear of the
tray and the tray will come out. When re-
moving the tray, use care so that Gear/L0
will not mesh with the gear of the tray.
c. Pull out the Tray Ass'y.
Front Panel
Top Cover w
Gear/L01
q Marking
Fig. A
Plate/Table
e
y
q IMPORTANCE : Installation of Table.
r Clamp Ass'y Install the table according to the following procedure.
t 1) Slide the Lever so that the Gear/RT1 be-
Support/T
Table
comes free. (Fig.B-1)
2) With the "v" mark on the Gear/RT1 aligned
with the same mark on the Tray, lock it with
the Lever. (Fig.B-1)
3) Install the Table by aligning it to the thick line
on " / " mark. (Fig.B-2)
*Check that the Table is locked after installation.
Tray
Fit the Gear/RT1 to "v" mark.
Gear/RT1
Fig. 1
Tray
Front Panel
Tray Lever
Lock
Unlock Fig. B-1
Fit the table to the thick line on " /" mark.
Tray
Gear/L0
Table
Fig. 2
Fig. B-2
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CDC-585/506 CDC-685/906
CM-230 unit can not be removed without removing the front CM-240 unit can be removed without removing the
panel unit. front panel unit.
5-A.Removal of Front Panel Unit (CDC-585/CDC-506 only) 5. Removal of CM-240 Unit (CDC-685/CDC-906 only)
a. Remove CB200, CB301 and CB304. a. Remove 4 screws ( !0 ) as shown in Fig. 5.
b. Remove 4 screws ( u ) and 3 screws ( i ) as shown b. Remove connectors (CB202 & 410) and cables (CB1
in Fig. 3. CB2, CB100, CB102 & 300) from the P.C.B. Main.
c. Remove the Front Panel Unit as shown in Fig. 3. c. Take the CM-240 Unit out slowly as shown in Fig. 5.
CM-230 Unit CM-240 Unit !0
u !0
u
i
u
Fig. 3 Fig. 5
5-B.Removal of CM-230 Unit (CDC-585/CDC-506 only)
a. Remove 4 screws ( o ) as shown in Fig. 4.
CB410
b. Remove connectors (CB202 & 410) and cables (CB1
& 2, CB300) from the P.C.B. Main. CB202 CB1
c. Take the CM-230 Unit out slowly as shown in Fig. 4. CB2
CB300
CM-230 Unit o
CB100
o
CB102
Fig. 4
CB410
CB202 CB1
CB2
CB300
CB301
CB304
CB200
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6. Removal of PU Mechanism Unit
q Operation Check Procedure
a. Remove 2 screws ( !1 ) and then remove the PU
q Disassembly
Unit Ass'y as shown Fig. 6. 1) Remove the top cover.
!1
2) Remove the Clamp Ass'y.
PU Unit Ass'y
3) Remove the stabilizer from the Holder.
Turn the Plate clockwise by 30° while holding
the Stabilizer, and the Plate will come off.
Remove the Stabilizer from the Holder.
w Clamp the disc by using the stabilizer.
e Set to the TEST mode and check for any
faulty conditions.
Frame/Clamper Plate
Fig. 6 Stabilizer
b. Remove 4 screws ( !2 ) and then remove the PU Unlock
Mechanism Unit as shown in Fig. 7.
!2 !2 Lock
Holder
Plate
PU Mechanism
Unit
Fig. C
Fig. 7
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s MAIN P.C.B. CHECK
Preparation before MAIN P.C.B. Check
a. Remove the Top Cover.
b. Remove the Tray Ass'y
c. Remove 3 screws ( q ) on the Panel as shown in
Fig. 1. CAUTION : The ground point must be connected to
d. Remove 2 screws ( w ) and 1 plastic rivet on the rear panel to keep the circuit in normal
Main P.C.B. as shown in Fig. 2. operation when Main P.C.B. is removed
e. Spread a cloth over the Main Chassis as shown in from main chassis.
Fig. 2.
f. Put the Main P.C.B. on end as shown in Fig. 2.
g. Connect the ground point of Main P.C.B. (2) to rear
panel by using wire as shown in Fig. 2. Solder the end of the wire to the ground point
of Main P. C. B. (2). (refer to P.31/P.33 F-2)
P.C.B. Main
w
w Plastic Rivet
Cable
Rear Panel Rear Panel
P.C.B. Main
q Cloth
Fig. 1 Fig. 2
h. Remove 7 screws ( e ) as shown in Fig. 3. Top View r
i. Remove 5 screws ( r ) and 1 screw ( t ) as shown
in Fig. 4.
Front Panel
j. Remove the front panel from the Main Chassis.
e
r
Front Panel Front Panel
e r
e t r
e
Fig. 3 Fig. 4
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s STANDARD OPERATION CHART
Press OPEN/CLOSE key. "OPEN" appears on the display.
Forced feed return operation. "TRV" signal is output until detection of LIMIT switch.
Clamp down operation. Proceeds to next step after detection of CLAMP switch. (SW400)
Disc table reset.
Tray open. Stop after detection of LOADING switch. (SW401)
Tracking Offset auto ADJ.
Focus Offset auto ADJ.
Load a disc in "DISC 1".
Press PLAY key or push the tray. "DISC" flash.
Tray closed. Proceeds to next step after detection of LOADING switch. (SW401)
Table rotate. DISC "1" is turned to DM clamp position.
Disc serch. "DISC" from flashing to lighting.
Disc mechanism unit clamped up. Proceeds to next step after detection of CLAMP switch (SW400)
Feed inward switch serch. if FLSW = L (IC301, pin 21) Proceed to next step.
Laser ON.
Disc scan.
FOCUS Gain rough ADJ.
FOCUS Search operation.
FOCUS LOCK servo ON. FLOCK = "H" "L" (IC301, pin 8)
Spindle motor accelerated.
TRACKING servo ON. TLOCK = "H" "L" (IC301, pin 7)
Disc servo ON
VCO lock.
Tracking Gain rough ADJ.
Tracking Balance ADJ. (only Tray OPEN/CLOSE)
FOCUS BALANCE ADJ.
A
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A
FOCUS GAIN ADJ.
TRACKING GAIN ADJ.
*TOC READ * ~ Data fetch cycle ~
TRACK No. "1" is searched.
After searching the beginning, MUTE is cancelled. : MUTE OFF = "L" "H", "0:00" appears on the display.
(IC301, pin 4)
~ PLAY ~
Set to SEARCH by means of Y,Tkey.
MUTE ON. : MUTE OFF = "H" "L"
TRACK search.
After searching the beginning, MUTE is cancelled. : MUTE OFF = "L" "H", "0:00" appears on the display.
~ PLAY ~
Press the STOP key.
MUTE ON.
Spindle motor stop.
Laser OFF.
Forced feed return. : FLSW = "L" (IC301, pin 21)
~ STOP ~
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s TEST MODE
q Starting TEST mode
Test mode is started when the power is turned on while the "PLAY/PAUSE" and "STOP" keys on the panel
are simultaneously pressed and held.
When the test mode is started, all the displays light up for about 1 second. ("TEST" on display)
NOTE : To fully operate all test modes the remote control must be used.
q Function List of Panel keys Note: "traverse servo" means the same as "feed servo"
PANEL KEY FUNCTION
OPEN/CLOSE Tray open/close.
PLAYXCHANGE Rotating the mode of coefficients. (Coefficient mode¨Coefficient setting¨Product mode) Press-
ing twice will set to the product mode.
PLAY/PAUSE Plays if focus servo is effective. TRON, MUTE OFF.
STOP All stop. (Focus, spindle, feed, laser, tray, etc.) Initializes FL display.
T SKIP Backward traverse move. (If inner SW turns on, traverse is stopped.)
(Coefficient set up mode : upper digit down.)
Y SKIP Forward traverse move.
(Coefficient set up mode : upper digit up.)
DISC 1 Returns to product mode. (Tray and table inoperative.)
DISC 2 Adjustment mode 1 (TR-offset, FO-offset, FO-rough gain adjustment)
DISC 3 Adjustment mode 2 (TR-balance, TR-rough gain adjustment)
DISC 4 Adjustment mode 3 (FO-fine gain, TR-fine gain, FO-balance adjustment)
DISC 5 --
PROG Decelerates or stops spindle.
OUTPUT LEVEL Output level down.
(Coefficient set up mode : address down.)
OUTPUT LEVEL + Output level up.
(Coefficient set up mode : address up.)
+10 --
1 Returns to product mode. (tray and table inoperative.)
2 Adjustment mode 1 (TR-offset, FO-offset, FO-rough gain adjustment) CDC-685/
3 Adjustment mode 2 (TR-balance, TR-rough gain adjustment) CDC-906
4 Adjustment mode 3 (FO-fine gain, TR-fine gain, FO-balance adjustment) ONLY
5 Turn table turns counterclockwise. (Slow speed)
6 Turn table turns clockwise. (Slow speed)
7 (Note 1) Turn table turns counterclockwise. (Fast speed)
8 (Note 1) Turn table turns clockwise. (Fast speed)
9 Backward 10 TRACK KICK-continuously
0 Forward 10 TRACK KICK-continuously
(Note 1) When the disc table is not positioned correctly, be sure to turn the disc table one full rotation by using the
DISC SKIP key on the remote control unit before canceling the TEST mode.
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q Function List of Remote Control Transmitter CUSTOM CODE = (79)x
CODE KEY FUNCTION
00 MODE Traverse stop
01 OPEN/CLOSE Tray open/close
02 PLAY PLAY (FOON, TRON, TVON (FEON), SPON)
04 TSKIP Backward traverse move. (If inner SW turns on, traverse is stopped.)
(Coefficient set up mode : upper digit down)
05 ESEARCH Clamp down.
(Coefficient set up mode : lower digit down)
06 RSEARCH Clamp up.
(Coefficient set up mode : lower digit up)
07 YSKIP Forward traverse move.
(Coefficient set up mode : upper digit up)
08 REPEAT FOON, TROF (Enter focus search if focus servo is off.)
0A TEXT/TIME (Note 2) Checks FL display.
0B INDEX FOON, TROF, TVOF (FEOF) (Enter focus search if focus servo is off.)
0C PROG Rotates or accelerates spindle.
0D CLEAR Decelerates spindle.
10 0 Backward 150 TRACK KICK continuously
11 1 Returns to product mode. (Tray and Table inoperative.)
12 2 Adjustment mode 1 (TR-offset, FO-off set, FO-rough gain adjustment)
13 3 Adjustment mode 2 (TR-balance, TR-rough gain adjustment)
14 4 Adjustment mode 3 (FO-fine gain, TR-fine gain, FO-balance adjustment)
15 5 Forward 1 TRACK KICK continuously
16 6 Backward 1 TRACK KICK continuously
17 7 Forward 30 TRACK KICK continuously
18 8 Backward 30 TRACK KICK continuously
19 9 Forward 150 TRACK KICK continuously
1A +10 Enter coefficient set up mode.
1B RANDOM SPON (Spindle servo on.)
1C OUTPUT LEVEL Output level down.
(Coefficient set up mode : address down)
CDC-685/CDC-906 ONLY
1D OUTPUT LEVEL + Output level up.
(Coefficient set up mode : address up)
1E DIMMER (Note 2) Checks FL display.
4F DISC SKIP w DISC SKIP + (Clockwise)
50 DISC SKIP q DISC SKIP (Counterclockwise)
53 DISC SCAN
55 PAUSE FOON, TROF, TVOF (FEOF) (Enter focus search if focus servo is off.)
56 STOP All stop. (Focus, spindle, traverse, laser, tray, etc.)
57 TAPE Spindle free (off) CDC-685/CDC-906 ONLY
58 SYNCHRO Backward traverse move
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(Note 2) Checks FL display.
DIMMER
TEXT/TIME
q CDC-685/CDC-906
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s ERROR MESSAGE
When stopped by any cause, press "STOP" of the remote control while pressing and holding the "STOP" on the
panel key. The operation mode turns to the mode allowing the display of messages.
The unit hold the latest error message in EEPROM. So even if stopped with no error, the unit can display the
latest error massage with same operation. (Except for CDC-585/CDC-506, which have no EEPROM. )
q Error Messages List
ERROR * Meaning of each state ("X") :
DESCRIPTION
MESSAGE (X = 0)PLAY
E -- X 0 Data cannot be read after finishing search. (X = 2)SCAN
E -- X 1 Data cannot be read during PLAY (x = 0), PAUSE (x = 3) or SCAN (x = 2). (X = 3)PAUSE
E -- 7 1 At the start, tracking servo is not effective. (X = 4)PEAK SEARCH
E -- 7 2 At the start, spindle servo PLL is not effective. (X = 5)SEARCH
E -- 7 3 At the start, data can not read. (X = 6)DISC SCAN
E -- X 4 Close switch does not work with tray closed. (X = 7)START
E -- X 5 Open switch does not work with tray opened. (X = 8)STOP
E -- X 6 Table does not turn. (X = 9)DISC SEARCH
E -- X 7 Traverse (Feed) inner circumference switch does not work. (X = )EJECT
E -- X 8 Recovery action fails after focus drop. (X = C) ........... NO DISC
E -- X 9 Clamp down switch does not work.
E -- X A Clamp up switch does not work.
E r r MN35511 does not give response of SENSE, with resetting by the unit's
microcomputer.
1) Error Code Troubleshooting
Error codes X0 , X1 , 73 ..... Data cannot be read. Error code X6 ........................ Poor table rotation.
Is disc dirty or YES Check by using NO Motor defective.
Does tray rotate in
scratched? another disc. Drive circuit defective.
TEST mode? DISC
SKIP Microcomputer defective.
NO
YES
TRACKING servo
Outermost defective. Tray sensor defective.
Pick-up position FEED servo Microcomputer defective.
(on mirror
surface) defective.
Within disc range
Pick-up defective, Spindle system
defective. (Motor fails to run, etc.)
Error code X7 .......... FEED operation defective.
(Limit switch fails)
Error codes X4 , X5 ................ Poor tray loading
operation. Feed limit switch
Is forced feed YES
operation available defective.
in TEST Microcomputer
Does tray Y ...Outward
mode? defective.
operate when YES SW401 detection poor. T ...Inward
OPEN/CLOSE key is NO
Microcomputer defective.
pressed?
FEED servo defective.
Microcomputer defective.
NO
Motor defective.
Control IC (IC400) defective.
Microcomputer defective.
16
CDC-585/CDC-506
CDC-685/CDC-906 CDC-585/CDC-506/CDC-685/CDC-906
Error code X8 ............... Focus drops. 2) Troubleshooting from System Malfunctions.
a) Tray fails to come out/go in.
Is disc dirty or YES Check by using
scratched? another disc. Tray starts to YES Poor mechanism operation.
move but stops. Wire caught.
Loose gear, etc.
NO
TRACKING servo NO
Outermost defective.
Pick-up position Is output
(on mirror FEED servo YES
surface) available at LOADING Motor defective.
defective.
terminal?
Within disc range
NO
FOCUS servo defective.
Pick-up defective.
YES
Microcomputer or
FLSW = "L" LOADING IC (IC400)
defective.
NO
Limit switch defective.
Error code X9 , XA ..... Poor clamp operation. FEED servo system defective.
Microcomputer defective.
Is pick-up
YES
caught and locked by Malfunction of tray-table.
disc table?
b) No sound generated, Sound cut during play.
NO (but time display advanced properly)
Is clamp Motor defective.
NO
operation available in Control IC (IC401) defective. YES MUTING circuit defective.
TEST mode? Microcomputer defective. MUTING applied.
Microcomputer defective.
"E"...Clamp down
"R"...Clamp up
YES NO
SW400 detection poor.
Audio amplifier defective.
Microcomputer defective.
(IC101 & IC102)
IC1 or IC3 defective.
17
CDC-685/CDC-906
CDC-585/CDC-506
CDC-585/CDC-506/CDC-685/CDC-906
c) Operates as if no disc loaded. d) Sound skips.
(although loaded) (Time display fails to advance properly)
Does table NO Is disc dirty, Check by using a
Poor table rotation. YES
rotate properly? scratched or known good disc.
warped?
YES
NO
Infrared sensor defective.
Is table position NO Poor mechanism
(D400) accuracy.
sensor normal? Microcomputer defective. Is disc or disc YES Floating rubber/spring
stabilizer in contact with deformed.
YES
mechanism? Pick-up connector
assembly caught.
Disc clamp defective. NO
Does disc clamp NO
operate properly? Clamp switch defective. Tracking servo system defective.
Microcomputer defective.
FEED servo system defective.
YES
FOCUS servo system defective.
Pick-up defective.
Is pick-up at NO
innermost position? Feed limit switch defective.
YES
e) No search provided.
Is FOCUS NO FOCUS servo system (Sound skipped after search)
lock done? defective.
YES Is disc dirty, YES Check by using a known
scratched or good disc.
warped?
Does spindle NO Spindle servo system
NO
motor run? defective.
Tracking servo system defective.
YES