Yamaha CDC-697 User manual

101030
P.O.Box 1, Hamamatsu, Japan
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 authorization, 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.
■CONTENTS
TO SERVICE PERSONNEL ...................................... 2–3
PREVENTION OF ELECTROSTATIC DISCHARGE .... 4
FRONT PANEL .............................................................. 4
REAR PANELS .......................................................... 5–6
REMOTE CONTROL PANEL ........................................ 6
SPECIFICATIONS.......................................................... 7
INTERNAL VIEW ........................................................... 7
DISASSEMBLY PROCEDURES ............................. 8–10
STANDARD OPERATION CHART ....................... 11–12
TEST MODE ........................................................... 13–15
ERROR MESSAGES ............................................. 16–18
IC DATA ................................................................. 19–24
DISPLAY DATA ........................................................... 25
PIN CONNECTION DIAGRAMS .................................. 26
BLOCK DIAGRAM ....................................................... 27
PRINTED CIRCUIT BOARDS................................ 28–33
SCHEMATIC DIAGRAMS ...................................... 35–36
REPLACEMENT PARTS LIST .............................. 37–44
REMOTE CONTROL.................................................... 45
Parts List for Carbon Resistors ................................ 46
2006 All rights reserved.
This manual is copyrighted by YAMAHA and may not be copied or
redistributed either in print or electronically without permission.
CDC-697
'06.09
COMPACT DISC PLAYER
CDC-697

CDC-697
CDC-697
2
WALL
OUTLET
EQUIPMENT
UNDER TEST
AC LEAKAGE
TESTER OR
EQUIVALENT
INSULATING
TABLE
■TO SERVICE PERSONNEL
1. Critical Components Information
Components having special characteristics are marked Zand
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
from supply circuits.
●Meter impedance should be equivalent to 1500 ohms shunted
by 0.15µF.
●Leakage current must not exceed 0.5mA.
●Be sure to test for leakage with the AC plug in both polari-
ties.
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 at the laser beam at any time.
2) Do not attempt to readjust, disassemble or repair 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.
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.
Laser Emitting conditions:
1) When the Top Cover is removed, and the STANDBY/ON 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 loaded, you will not be exposed to any laser
emissions.
2) The laser power level can be adjusted with the VR on the 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.
All of the P.C.B.s installed in this unit and solder joints are soldered using the lead free solder.
Among some types of lead free solder currently available, it is recommended to use one of the following types for the repair
work.
• Sn + Ag + Cu (tin + silver + copper)
• Sn + Cu (tin + copper)
• Sn + Zn + Bi (tin + zinc + bismuth)
Caution:
As the melting point temperature of the lead free solder is about 30°C to 40°C (50°F to 70°F) higher than that of the lead solder, be sure
to use a soldering iron suitable to each solder.
About Lead Free Solder

CDC-697
3
CDC-697
This set employs a laser. Therefore, be sure to care-
fully follow the instructions below when servicing.
1. Laser Diode Properties
• Material : GaAlAs
• Wavelength : 790 nm
• Emission Duration : Continuous
• Laser Output : . 1.23 mW (max.)
2. When checking the laser diode emission, keep your
eyes more than 30 cm away from the objective lens.
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.
PROTECTION OF EYES FROM LASER BEAM DURING SERVICING
Optical pick-up
WARNING

CDC-697
CDC-697
4
■PREVENTION OF ELECTROSTATIC DISCHARGE
The laser diode in the DVD mechanism may be damaged due to static electricity from clothes or the human body. Use caution
to prevent electrostatic damage when servicing or handling the DVD-mechanism.
1. Grounding for electrostatic damage prevention
Some devices, such as the DVD player, use an optical pickup (laser diode) that will be damaged by static electricity in the
working environment. Only attempt service after ensuring that all grounding procedures have been completed.
1. Worktable grounding
Put a grounded conductive material (sheet) or iron sheet on the area where the optical pickup is placed.
2. Human body grounding
Use an anti-static wrist strap to discharge the static electricity from your body.
1M ohms
Conductive material
(sheet) or steel sheet
Anti-static wrist strap
2. Handling Precautions for DVD mechanism
1. Handle the DVD mechanism gently, as it is an extremely high-precision assembly.
2. The flexible cable lines may break if an excessive force is applied to it. Use caution when handling the cable.
3. The semi-fixed resistor for laser power adjustment should not be adjusted. Do not turn the resistor.
■FRONT PANEL
CDC-697 (U, C, R, T, A, B, G, L models)

CDC-697
5
CDC-697
■REAR PANELS
CDC-697 (U, C models)
CDC-697 (R model)
CDC-697 (T model)
CDC-697 (A model)

CDC-697
CDC-697
6
CDC-697 (B, G models)
CDC-697 (L model)
■REMOTE CONTROL PANEL

CDC-697
7
CDC-697
■SPECIFICATIONS
■Audio Section
Output Level (1 kHz, 0 dB) ................................................. 2 ±0.5 V
Signal to Noise Ratio .............................................. 106 dB or more
Dynamic Range .......................................................... 96 dB or more
Harmonic Distortion + Noise (1 kHz) ..................... 0.003 % or less
Frequency Response (2 to 20 kHz) .................................... ±0.5 dB
■General
Power Supply
U, C models .......................................................... AC 120 V, 60 Hz
R, L models ......................... AC 110/120/220/230-240 V, 50/60 Hz
T model ................................................................. AC 220 V, 50 Hz
A model ................................................................. AC 240 V, 50 Hz
B, G models .......................................................... AC 230 V, 50 Hz
Power Consumption ................................................................ 12 W
Dimensions (W x H x D) ......................................... 435 x 116 x 403
(17-1/8" x 4-9/16" x 15-7/8")
Weight ............................................................... 5.5 kg (12 lbs. 2 oz.)
Finish
Black color ............................................ U, C, R, T, A, B, G models
Titanium color .............................................................. G, L models
Accessories
Remote control x 1, Batteries (UM-3) x 2, Power cable x 1 (U, C, A, B,
G models), Audio pin cable x 1
* Specifications are subject to change without notice due to product
improvements.
U .......... U.S.A. model C ...... Canadian model
R .......... General model T ....... Chinese model
A .......... Australian model B ...... British model
G .......... European model L ....... Singapore model
• DIMENSIONS
394.5
(15-1/2")
403
(15-7/8")
1.5
(1/16")
7
(1/4")
Unit: mm (inch)
435 (17-1/8")
16
(5/8")
100
(3-15/16")
116
(4-9/16")
■INTERNAL VIEW
1MAIN (7) P.C.B. (U, C, A, B, G models)
2MAIN (2) P.C.B. (R, L models)
CLAMP ASS'Y
3
CM-230A UNIT
4
MAIN (1) P.C.B.
5
MAIN (6) P.C.B.
6
MAIN (5) P.C.B.
7
MAIN (3) P.C.B.
8
TRAY ASS’Y
9
MAIN (4) P.C.B.
0
12 34 56
78 90

CDC-697
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8
■DISASSEMBLY PROCEDURES
Fig. 1
(Remove parts in the order as numbered.)
1. Removal of Top Cover
a. Remove 4 screws (1) and 3 screws (2). (Fig. 1)
b. Lift the top cover at the rear and move it rearward
slantingly.
2. Removal of Clamp Ass’y
a. Remove 2 screws (3). (Fig. 1)
b. Remove clamp ass’y. (Fig. 1)
3. Removal of Tray Ass’y
a. Remove 1 screw (4). (Fig. 1)
b. Turn gear/L0. (Fig. 2) Counter clockwise gradually
until immediately before the tray starts to move and
stop it there.
CAUTION: Gear/L0, if turned counter clockwise continu-
ously, will mesh with the gear of the tray and
the tray will come out. When removing the
tray, use care so that gear/L0 will not mesh
with the gear of the tray.
c. Pull out the tray ass’y.
4. Removal of Table
a. Remove 1 screw (5) and then remove the support/T.
(Fig. 1)
b. Remove the plate/table. (Fig. 1)
c. Remove 1 screw (6) and then take off the table.
(Fig. 1)
1
1
2
Table
Tray
6
4
5
3
Top cover
Plate/Table
Clamp ass'y
Support/T
Tray
Gear/L0
Front panel unit
Fig. 2
• Precaution for installation of the Tray Ass’y.
On tray ass’y setting.
Check the direction of marking “HH
HH
H”on gear accord-
ing to this drawing.
Fig. A
Gear/L0
Front panel
Gear/L01
Marking
• IMPORTANCE: Installation of Table.
Install the table according to the following procedure.
1) Slide the lever so that the gear/RT1 becomes
free. (Fig. B-1)
2) With the “HH
HH
H”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 installa-
tion.
Fig. B-1
Fig. B-2
Lever
Gear/RT1
Fit the gear/RT1 to "▲" mark.
Lock
Unlock
Tray
Tray
Table
Fit the table to the thick line on "
/ " mark.

CDC-697
9
CDC-697
CM-230A unit can not be removed without removing
the Front Panel Unit.
5-A. Removal of Front Panel Unit
a. Remove CB200 and CB304. (Fig. 4)
b. Remove 2 screws (7), 3 screws (8) and 1 screw
(9). (Fig. 3)
c. Remove the front panel unit. (Fig. 3)
8
9
7
7
CM-230A unit
Front panel unit
Fig. 3
5-B. Removal of CM-230A Unit
a. Remove 5 screws (0). (Fig. 5)
b. Remove CB1, CB2 and CB300. (Fig. 4)
c. Take the CM-230A unit out slowly. (Fig. 5)
6. Removal of PU Mechanism Unit
a. Remove 2 screws (A) and then remove the PU unit
ass’y. (Fig. 6)
b. Remove 4 screws (B) and then remove the PU
mechanism unit. (Fig. 7)
Fig. 6
PU unit ass'y
A
Fig. 7
PU mechanism unit
BB
•Operation Check Procedure
a. Disassembly
1) Remove the top cover.
2) Remove the clamp 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.
b. Clamp the disc by using the stabilizer.
c. Set to the TEST mode and check for any faulty
conditions.
Fig. C
Holder
Lock
Unlock
Stabilizer
Frame damper Plate
CB300
CB2
CB1
CB410
CB202
CB304
CB200
Fig. 4
0
CM-230A unit 0
Fig. 5

CDC-697
CDC-697
10
•When checking the P.C.B.:
a. Remove the top cover.
b. Remove the tray ass’y.
c. Remove 3 screws (1) and 2 jack screws (2). (Fig. 1)
d. Remove 1 screw (3), 1 screw (4) and 1 push rivet.
(Fig. 2)
e. Spread a cloth over the main chassis. (Fig. 2)
f. Put the MAIN (1) and MAIN (6) P.C.B.s on end.
(Fig. 2)
g. Connect the ground point of MAIN (6) P.C.B. to rear
panel by using ground lead. (Fig. 2)
CAUTION: The ground point must be connected to rear
panel to keep the circuit in normal operation
when MAIN (6) P.C.B. is removed from rear
panel.
h. Remove 5 screws (5) and 1 screw (6). (Fig. 3)
i. Remove the front panel from the chassis.
Fig. 1
Fig. 2
Fig. 3
Push rivet
1
4
3
Rear panel
MAIN (1) P.C.B.
MAIN (6) P.C.B.
1
2
Ground lead
Cloth
Chassis
MAIN (6) P.C.B.
MAIN (1) P.C.B.
Rear panel
Ground lead
Ground point
(PJ101)
5
Front panel
Chassis
5
6
5

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11
CDC-697
■STANDARD OPERATION CHART
"OPEN" is displayed.
TRV signal is output until detection of FEED LIMIT switch.
Press "OPEN/CLOSE" key.
Forced feed return operation.
Clamp down operation.
Tracking offset auto adjustment.
Focus offset auto adjustment.
Laser on.
Disc scan.
Focus gain rough adjustment.
Focus search operation.
Spindle motor accelerated.
Tracking servo on.
Disc servo on.
VCO lock.
Disc table reset.
Tray open.
Tray closed.
Table rotate.
Disc search.
Disc mechanism unit clamped up.
FEED LIMIT switch search.
Proceeds to next step after detection of CLAMP switch. (SW401)
Stops after detection of LOADING switch. (SW400)
Proceeds to next step after detection of LOADING switch. (SW400)
DISC "1" is turned to DM clamp position.
Proceeds to next step after detection of CLAMP switch. (SW401)
FLSW = "L" (IC309, pin 23)
Tracking gain rough adjustment.
Tracking balance adjustment. (only tray open/close)
Focus balance adjustment.
Focus lock servo on.
DISC 1 " " flashes.
DISC 1 " " changes from flashing into lighting.
Load a disc in DISC 1.
Press "PLAY" key or push the tray.
FLOCK = "H" →"L" (IC309, pin 8)
TLOCK = "H" →"L" (IC309, pin 7)
A

CDC-697
CDC-697
12
Press the "STOP" key.
Focus gain adjustment.
Tracking gain adjustment.
After searching the beginning, Mute is cancelled.
Mute on.
Track search.
After searching the beginning, Mute is cancelled.
Mute on.
Spindle motor stop.
Laser off.
Forced feed return.
*TOC READ *~ Data fetch cycle ~
Track No. "1" is searched.
~ PLAY ~
Set to search by means of "Y", "T" key.
~ PLAY ~
~ STOP ~
: MUTE ON = "H"→"L"
: MUTE OFF = "L" →"H", "0:00" appears on the display.
: MUTE OFF = "L" →"H", "0:00" is displayed.
: FLSW = "L" (IC309, pin 23)
A
(IC309, pin 28)

CDC-697
13
CDC-697
■TEST MODE
•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, as shown below is displayed.
Note: “traverse servo”means the same as “feed servo”.
Panel key Function
OPEN/CLOSE
PLAYXCHANGE
PLAY/PAUSE
STOP
TT
TT
TSKIP
YY
YY
YSKIP
DISC 1
DISC 2
DISC 3
DISC 4
DISC 5 (Note 1)
Tray open/close.
Rotating the mode of coefficients. (Coefficient mode →Coefficient setting →Product mode) Pressing
twice will set to the product mode.
Plays if focus servo is effective. TRON, MUTE OFF.
All stop. (Focus, spindle, feed, laser, tray, etc..) Initializes FL display.
Backward traverse move. (If inner SW turns on, traverse is stopped.)
(Coefficient set up mode: upper digit down.)
Forward traverse move.
(Coefficient set up mode: upper digit up.)
Returns to product mode. (Tray and table inoperative.)
Adjustment mode 1 (TR-offset, FO-offset, FO-rough gain adjustment.)
Adjustment mode 2 (TR-balance, TR-rough gain adjustment.)
Adjustment mode 3 (FO-fine gain, TR-fine gain, FO-balance adjustment.)
Measure the rotating time of the table (rotate slow).
(Note 1) Measure the rotating time of the table (rotate fast/rotate slow).
1. Display for time mesurement.
The time display shows the time for 1 rotation of the table.
The unit of time is 0.1 second (rotate fast) or 1 second (rotate slow).
NOTE: To fully operate all test modes the remote control must be used.
•Function List of Panel Keys
2. When the disc table is not positioned correctly, be sure to turn the disc table one full rotation by using the “DISC
SKIP qq
qq
q”or “DISC SKIP ww
ww
w”keys on the remote control unit before canceling the TEST mode.
"TEST" is displayed.
The firmware version of microprocessor and check sum value are displayed.
Starting TEST mode.
Clockwise
Counter clockwise

CDC-697
CDC-697
14
MODE
OPEN/CLOSE
PLAY
TT
TT
TSKIP
EE
EE
ESEARCH
RR
RR
RSEARCH
YY
YY
YSKIP
REPEAT
TEXT/TIME (Note 2)
INDEX
PROG
CLEAR
0
1
2
3
4
5
6
7
8
9
+10
RANDOM
OUTPUT LEVEL –
OUTPUT LEVEL +
DIMMER (Note 2)
DISC SKIP ww
ww
w
DISC SKIP qq
qq
q
DISC SCAN (Note 1)
PAUSE
STOP
TAPE
SYNCHRO
Traverse stop.
Tray open/close.
PLAY (FOON, TRON, TVON (FEON), SPON)
Backward traverse move. (If inner SW turns on, traverse is stopped.)
(Coefficient set up mode: upper digit down.)
Clamp down.
(Coefficient set up mode: lower digit down.)
Clamp up.
(Coefficient set up mode: lower digit up.)
Forward traverse move.
(Coefficient set up mode: upper digit up.)
FOON, TROF (Enter focus search if focus servo is off.)
Checks FL display.
FOON, TROF, TVOF (FEOF) (Enter focus search if focus servo is off.)
Rotates or accelerates spindle.
Decelerates spindle.
Backward 150 TRACK KICK continuously.
Returns to product mode. (Tray and Table inoperative.)
Adjustment mode 1 (TR-offset, FO-off set, FO-rough gain adjustment.)
Adjustment mode 2 (TR-balance, TR-rough gain adjustment.)
Adjustment mode 3 (FO-fine gain, TR-fine gain, FO-balance adjustment.)
Forward 1 TRACK KICK continuously.
Backward 1 TRACK KICK continuously.
Forward 30 TRACK KICK continuously.
Backward 30 TRACK KICK continuously.
Forward 150 TRACK KICK continuously.
Enter coefficient set up mode.
SPON (Spindle servo on.)
Output level down.
(Coefficient set up mode: address down.)
Output level up.
(Coefficient set up mode: address up.)
Checks FL display.
DISC SKIP + (Clockwise)
DISC SKIP –(Counterclockwise)
Measure the rotating time of the table (rotate fast).
FOON, TROF, TVOF (FEOF) (Enter focus search if focus servo is off.)
All stop. (Focus, spindle, traverse, laser, tray, etc..)
Spindle free. (off)
Backward traverse move.
00
01
02
04
05
06
07
08
0A
0B
0C
0D
10
11
12
13
14
15
16
17
18
19
1A
1B
1C
1D
1E
4F
50
53
55
56
57
58
CUSTOM CODE = (79)x
Key Function
•Function List of Remote Control Transmitter
Code

CDC-697
15
CDC-697
(Note 2) Checks FL display.
DIMMER
TEXT/TIME

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16
Error
message Description
■ERROR MESSAGES
When stopped by any cause, press “STOP”key of the remote control while pressing and holding the “STOP”key on the
main unit. The operation mode turns to the mode allowing the display of messages.
The unit hold the latest error message in microprocessor. So even if stopped with no error, the unit can display the latest
error massage with same operation.
E –x 0
E –x 1
E –7 1
E –7 2
E –7 3
E –x 4
E –x 5
E –x 6
E –x 7
E –x 8
E –x 9
E –x A
E r r
Data cannot be read after finishing search.
Data cannot be read during PLAY (x = 0), PAUSE (x = 3) or SCAN (x = 2).
At the start, tracking servo is not effective.
At the start, spindle servo PLL is not effective.
At the start, data can not read.
Close switch does not work with tray closed.
Open switch does not work with tray opened.
Table does not turn.
Traverse (Feed) inner circumference switch does not work.
Recovery action fails after focus drop.
Clamp down switch does not work.
Clamp up switch does not work.
IC3 does not give response of SENSE, with resetting by the microprocessor.
* Meaning of each state (“x”):
(x = 0) PLAY
(x = 2) SCAN
(x = 3) PAUSE
(x = 4) PEAK SEARCH
(x = 5) SEARCH
(x = 6) DISC SCAN
(x = 7) START
(x = 8) STOP
(x = 9) DISC SEARCH
(x = –) EJECT
(x = C) NO DISC
1) Error Code Troubleshooting.
Error codes x0 , x1 , 73 ...Data cannot de read. Error code x6 .......................... Poor table rotation.
Error codes x4 , x5 ... Poor tray loading operation .Error code x7 ................ FEED operation defective .
(FEED LIMIT switch fails.)
TRACKING servo
defective.
FEED servo
defective.
Check by using
another disc.
YES
NO
Pick-up position
Within disc range
Outermost
(on mirror
surface)
Pick-up defective, spindle system
defective. (Motor fails to run, etc.)
Is disc dirty or
scratched?
Motor defective.
Microprocessor (IC309)
defective.
Does tray
operate when
"OPEN/CLOSE" key is
pressed?
YES
NO
"OPEN/CLOSE" key
(SW322) detection poor.
Microprocessor (IC309)
defective.
DISC
SKIP
NO
YES
Does tray rotate in
TEST mode?
Tray sensor defective.
Microprocessor (IC309)
defective.
Motor defective.
Drive circuit defective.
Microprocessor (IC309)
defective.
FEED servo defective.
Microprocessor (IC309)
defective.
YES
NO
FEED LIMIT switch
defective.
Microprocessor
(IC309) defective.
Y...Outward
T...Inward
Is forced feed
operation available
in TEST
mode?

CDC-697
17
CDC-697
2) Troubleshooting from system malfunc-
tions.
a) Tray fails to come out/go in.
b) No sound generated, sound cut during play.
(but time display advanced properly)
Error code x8 ..................................... Focus drops .
Error codes x9 , xA ............ Poor clamp operation .
TRACKING servo
defective.
FEED servo
defective.
Check by using
another disc.
Is disc dirty or
scratched?
YES
NO
Pick-up position
Within disc range
Outermost
(on mirror
surface)
FOCUS servo defective.
Pick-up defective.
LOADING switch detection
poor.
Microprocessor (IC309)
defective.
Is clamp
operation available in
TEST mode?
YES
NO
Motor defective.
Control IC (IC401) defective.
Microprocessor (IC309)
defective.
Is pick-up
caught and locked by
disc table?
YES
NO
Malfunction of tray-table.
"E"…Clamp down
"R"…Clamp up
Microprocessor
(IC309) defective.
NO
FLSW = "L"
FEED LIMIT switch defective.
FEED servo system defective.
Microprocessor (IC309) defective.
NO
YES
Motor defective.
Poor mechanism operation.
Wire caught.
Loose gear, etc.
Tray starts to
move but stops.
YES
NO
Is output
available at LOADING
terminal?
YES
Audio amplifier defective.
(IC101 and IC102)
IC1 or IC3 defective.
Muting applied.
YES
NO
Mute control circuit
defective.
Microprocessor (IC309)
defective.

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18
c) Operates as if no disc loaded.
(although loaded)
d) Sound skips.
(Time display fails to advance properly)
e) No search provided.
(Sound skipped after search)
Disc clamp defective.
CLAMP switch defective.
Microprocessor (IC309)
defective.
YES
Does disc clamp
operate properly?
IC1 or IC3 defective.
Microprocessor (IC309)
defective.
YES
NO
Infrared sensor defective.
Microprocessor (IC309)
defective.
Does table
rotate properly?
NO
YES
Is table position
sensor normal?
NO
Poor table rotation.
YES
Is FOCUS
lock done?
NO
YES
Is pick-up at
innermost position?
NO
YES
Jitter defective.
Does spindle
motor run?
NO
YES
Is EFM signal
normal?
NO
SPINDLE servo system
defective.
FEED LIMIT switch
defective.
FOCUS servo system
defective.
NO
TRACKING servo system defective.
FEED servo system defective.
FOCUS servo system defective.
Pick-up defective.
Is disc dirty,
scratched or
warped?
YES
NO
Is disc or disc
stabilizer in contact with
mechanism?
YES
Check by using a
known good disc.
Poor mechanism
accuracy.
Floating rubber/spring
deformed.
Pick-up connector
assembly caught.
NO
IC1 or IC3 defective.
Is disc dirty,
scratched or
warped?
YES
NO
Is TER
waveform normal?
YES
Check by using a known
good disc.
TRACKING servo system
defective.
FEED servo system defective.
FOCUS servo system defective.
Pick-up defective.

CDC-697
19
CDC-697
■IC DATA
IC3 : MN35511AL (MAIN P.C.B.)
Signal processor and controller
58 59 5617
STAT
X1 X2 XSEL
TIMING
GENERATOR
PITCH CONTROL
VCO
MICRO COMPUTER
INTERFACE
SERVO
CPU
OUTPUT
PORT
D/A
CONVERTER
EFM DEMODULATION
SYNC INTERPOLATION
SUBCODE DEMODULATION
CIRC ERROR CORRECTION
DE INTERLEAVE
CLV
SERVO
DIGITAL
AUDIO
INTERFACE
INTERPOLATION
SOFT MUTING
DIGITAL
ATTENUATION
PEAK DETECT
AUTO CUE
DSL •PLL VCO
16k
SRAM
PEM
(L)
PEM
(R)
DD type
DAC
PLL
VCO 2
8 TIMES
OVER SAMPLING
DIGITAL FILTER
DIGITAL DE-EMPHASIS
SUBCODE
BUFFER
INPUT PORT
SERVO
TIMING GENERATOR A/D CONVERTER
19
SMCK/FCLK
49
VCOF
69
CK384
8
MDATA
7
MCLK
9
MLD
44
ARF
46
DRF
45
IREF
47
DSLF
48
PLLF
52
EFM
53
PCK/RESY
67
AVDD
62
AVSS
15
SUBQ
14
SQCK
20
CLVS/FLAG6
68
DEMPO
73
SUBC
72
SBCK2
74
SBCK
75
CLDCK
13
BLKCK
55
CRC
78
SDATI
80
BCKI
79
LRCKI
77
DEMPI/TEST2
61
VCOF2
70
IOSEL
41
TOFS
4010 43
LDON
SENSE
WVEL
11
/FLOCK
12
/TLOCK
30
FBAL
31
TBAL
28
FOD
27
TRD
22
TVD
25
ECS
42
PLAY/TRVSTP
29
VREF
21
TRV
16
DMUTE
1
BCLK
3
SRDATA
2
LRCK
23
PC
24
ECM
6
TX
76
IPFLAG
54
FLAG
51
AVSS2
63
OUT1C
65
OUT2D
38
/RFDET
39
BDO
35
VDET
37
TRCRS
34
RFENV
33
TE
32
FE
71
/TEST
18
/RST
5
DVSS1
4
DVDD1
57
VSS
60
VDD
36
OFT
50
AVDD2
64
OUT1D
66
OUT2C
26
KICK

CDC-697
CDC-697
20
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
Pin no.
BCLK
LRCK
SRDATA
DVDD1
DVSS1
TX
MCLK
MDATA
MLD
SENSE
FLOCK
TLOCK
BLKCK
SQCK
SUBQ
DMUTE
STAT
RST
SMCK/
FCLK
CLVS/
FLAG6
TRV
TVD
PC
ECM
ECS
KICK
TRD
FOD
VREF
FBAL
TBAL
FE
TE
RFENV
VDET
OFT
TRCRS
RFDET
BDO
LDON
TOFS
PLAY/TRVSTOP
WVEL
ARF
IREF
DRF
DSLF
PLLF
VCOF
AVDD2
Name
Bit clock output for SR DATA
L/R identification signal output
Serial data output
Power supply for digital circuit (+5)
GND for digital circuit
Digital, audio, interface output signal
Microprocessor command clock signal input (data latched at leading edge)
Microprocessor command data input
Microprocessor command load signal input (L: LOAD)
Sense signal output (OFT, FESL, NACEND, NAJEND, SFG, NWTEND)
Focus servo drawing signal (L: when drawn)
Tracking servo drawing signal (L: when drawn)
Sub code block clock signal (BLKCK=75Hz)
Clock input for sub-code Q register
Sub-code Q code output
Muting input (H: MUTE)
Status signal (CRC, STCNT, CLVS, TTSTOP, SQOK, RESY, FCLV, FLAG6, SENSE,
/FLOCK, /RFDET, /TLOCK)
Reset input (L: RESET)
4.2336MHz clock signal output SMCK when command is defaulted. (Note 1)
SMCK (8.4672MHz), FCLK (7.35kHz) or “L”fixed is selected when command is
switched. (NC)
With command defaulted: CLVS when IOSEL=H, FLAG6 when IOSEL=L
These settings can be reversed by command (FLAG6 when IOSEL=H). (NC)
Traverse (Feed) forced feed output 3-State
Traverse (Feed) drive output
Spindle motor ON signal L: ON (default) (NC)
Spindle motor drive signal (forced mode output) 3-State
Spindle motor drive signal (servo error signal output)
Kick pulse output 3-State
Tracking drive output
Focus drive output
Reference voltage for DA output block (TVD, ECS, TRD, FOD, FBAL, TBAL)
Focus balance adjustment output
Tracking balance adjustment output
Focus error signal input (analog input)
Tracking error signal input (analog input)
RF envelope signal input (analog input)
Oscillation detect signal input (H : DETECT)
Off track signal input (H: OFF TRACK)
Track cross signal input (analog input)
RF detect signal input (L: DETECT)
Drop out signal input (H: DROP OUT)
Laser ON signal output (H: ON)
Tracking offset adjustment output (NC)
Switched by command. PLAY (Play signal output) when command is defaulted.
(NC)
Double speed status signal output (H: double speed) (NC)
RF signal input
Reference current input terminal
Bias terminal for DSL
Loop filter terminal for DSL
Loop filter terminal for PLL
Loop filter terminal for VCO (+5)
Power supply for analog circuit (for AD of DSL, PLL, DA output blocks) (+5)
Function
O
O
O
I
I
O
I
I
I
O
O
O
O
I
O
I
O
I
O
O
O
O
O
O
O
O
O
O
I
O
O
I
I
I
I
I
I
I
I
O
O
O
O
I
I
I
I/O
I/O
I/O
I
I/O