NAD M55 User manual

SERVICE MANUAL
SERVICE MANUAL
M55
MODEL : M55AHSERVICE MANUAL
© NAD 2010
NAD ELECTRONICS INTERNATIONAL
TORONTO
M55
DIGITAL DISC PLAYER
M55
DIGITAL DISC PLAYER
DIGITAL DISC PLAYER

CONTENTS
SECTION 1 . . . .SUMMARY
SECTION 2 . . . .CABINET CHASSIS NEW LOADER
SECTION 3 . . . .ELECTRICAL
SECTION 4 . . . .MECHANISM (ORIGINAL LOADER)
SECTION 5 . . . .REPLACEMENT PARTS LIST

SECTION 1
SUMMARY
CONTENTS
PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS ........................... 1-3
SERVICING PRECAUTIONS .................................................................................................. 1-4
• General Servicing Precautions
• Insulation Checking Prodedure
• Electrostatically Sensitive Devices
SPECIFICATIONS ...................................................................................................................... 1-5
1-2

1-3
CAUTION : DO NOT ATTEMPT TO MODIFY THIS PRODUCT IN ANY WAY,
NEVER PERFORM CUSTOMIZED INSTALLATIONS WITHOUT MANUFAC-
TURER’S APPROVAL. UNAUTHORIZED MODIFICATIONS WILL NOT ONLY
VOID THE WARRANTY, BUT MAY LEAD TO YOUR BEING LIABLE FOR ANY
RESULTING PROPERTY DAMAGE OR USER INJURY.
SERVICE WORK SHOULD BE PERFORMED ONLY AFTER YOU ARE
THOROUGHLY FAMILIAR WITH ALL OF THE FOLLOWING SAFETY
CHECKS AND SERVICING GUIDELINES. TO DO OTHERWISE,
INCREASES THE RISK OF POTENTIAL HAZARDS AND INJURY TO THE
USER.
WHILE SERVICING, USE AN ISOLATION TRANSFORMER FOR PROTEC-
TION FROM A.C. LINE SHOCK.
SAFETY CHECKS
AFTER THE ORIGINAL SERVICE PROBLEM HAS BEEN CORRCTED. A
CHECK SHOULD BE MADE OF THE FOLLOWING.
SUBJECT : FIRE & SHOCK HAZARD
1. BE SURE THAT ALL COMPONENTS ARE POSITIONED IN SUCH A WAY
AS TO AVOID POSSIBILITY OF ADJACENT COMPONENT SHORTS.
THIS IS ESPECIALLY IMPORTANT ON THOSE MODULES WHICH ARE
TRANSPORTED TO AND FROM THE REPAIR SHOP.
2. NEVER RELEASE A REPAIR UNLESS ALL PROTECTIVE DEVICES
SUCH AS INSULATORS, BARRIERS, COVERS, SHIELDS, STRAIN
RELIEFS, POWER SUPPLY CORDS, AND OTHER HARDWARE HAVE
BEEN REINSTALLED PER ORIGINAL DESIGN. BE SURE THAT THE
SAFETY PURPOSE OF THE POLARIZED LINE PLUG HAS NOT BEEN
DEFEATED.
3. SOLDERING MUST BE INSPECTED TO DISCOVER POSSIBLE COLD
SOLDER JOINTS, SOLDER SPLASHES OR SHARP SOLDER POINTS.
BE CERTAIN TO REMOVE ALL LOOSE FOREIGN PARTICLES.
4. CHECK FOR PHYSICAL EVIDENCE OF DAMAGE OR DETERIORATION
TO PARTS AND COMPONENTS. FOR FRAYED LEADS, DAMAGED
INSULATION (INCLUDING A.C. CORD). AND REPLACE IF NECESSARY
FOLLOW ORIGINAL LAYOUT, LEAD LENGTH AND DRESS.
5. NO LEAD OR COMPONENT SHOULD TOUCH A RECIVING TUBE OR
A RESISTOR RATED AT 1 WATT OR MORE. LEAD TENSION AROUND
PROTRUNING METAL SURFACES MUST BE AVOIDED.
6. ALL CRITICAL COMPONENTS SUCH AS FUSES, FLAMEPROOF
RESISTORS, CAPACITORS, ETC. MUST BE REPLACED WITH EXACT
FACTORY TYPES, DO NOT USE REPLACEMENT COMPONENTS
OTHER THAN THOSE SPECIFIED OR MAKE UNRECOMMENDED CIR-
CUIT MODIFICATIONS.
7. AFTER RE-ASSEMBLY OF THE SET ALWAYS PERFORM AN A.C.
LEAKAGE TEST ON ALL EXPOSED METALLIC PARTS OF THE CABI-
NET, (THE CHANNEL SELECTOR KNOB, ANTENNA TERMINALS. HAN-
DLE AND SCREWS) TO BE SURE THE SET IS SAFE TO OPERATE
WITHOUT DANGER OF ELECTRICAL SHOCK. DO NOT USE A LINE
ISOLATION TRANSFORMER DURING THIS TEST USE AN A.C. VOLT-
METER, HAVING 5000 OHMS PER VOLT OR MORE SENSITIVITY, IN
THE FOLLOWING MANNER; CONNECT A 1500 OHM 10 WATT RESIS-
TOR, PARALLELED BY A .15 MFD. 150.V A.C TYPE CAPACITOR
BETWEEN A KNOWN GOOD EARTH GROUND (WATER PIPE, CON-
DUIT, ETC.) AND THE EXPOSED METALLIC PARTS, ONE AT A TIME.
MEASURE THE A.C. VOLTAGE ACROSS THE COMBINATION OF 1500
OHM RESISTOR AND .15 MFD CAPACITOR. REVERSE THE A.C. PLUG
AND REPEAT A.C. VOLTAGE MEASUREMENTS FOR EACH EXPOSED
METALLIC PART. VOLTAGE MEASURED MUST NOT EXCEED 75
VOLTS R.M.S. THIS CORRESPONDS TO 0.5 MILLIAMP A.C ANY
VALUE EXCEEDING THIS LIMIT CONSTITUTES A POTENTIAL SHOCK
HAZARD AND MUST BE CORRECTED IMMEDIATELY.
SUBJECT: GRAPHIC SYMBOLS
THE LIGHTNING FLASH WITH APROWHEAD SYMBOL. WITHIN
AN EQUILATERAL TRIANGLE, IS INTENDED TO ALERT THE
SERVICE PERSONNEL TO THE PRESENCE OF UNINSULATED
“DANGEROUS VOLTAGE” THAT MAY BE OF SUFFICIENT MAG-
NITUDE TO CONSTITUTE A RISK OF ELECTRIC SHOCK.
THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIAN-
GLE IS INTENDED TO ALERT THE SERVICE PERSONNEL TO
THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN
SERVICE LITERATURE.
SUBJECT : X-RADIATION
1. BE SURE PROCEDURES AND INSTRUCTIONS TO ALL SERVICE PER-
SONNEL COVER THE SUBJECT OF X-RADIATION. THE ONLY POTEN-
TIAL SOURCE OF X-RAYS IN CURRENT T.V. RECEIVERS IS THE PIC-
TURE TUBE. HOWEVER, THIS TUBE DOES NOT EMIT X-RAYS WHEN
THE HIGH VOLTAGE IS AT THE FACTORY SPECIFIED LEVEL. THE
PROPER VALUE IS GIVEN IN THE APPLICABLE SCHEMATIC. OPERA-
TION AT HIGHER VOLTAGES MAY CAUSE A FAILURE OF THE PIC-
TURE TUBE OR HIGH VOLTAGE SUPPLY AND, UNDER CERTAIN CIR-
CUMSTANCES, MAY PRODUCE RADIATION IN EXCESS OF DESIR-
ABLE LEVELS.
2. ONLY FACTORY SPECIFIED C.R.T. ANODE CONNECTORS MUST BE
USED. DEGAUSSING SHIELDS ALSO SERVE AS X-RAY SHIELD IN
COLOR SETS, ALWAYS RE-INSTALL THEM.
3. IT IS ESSNTIAL THAT SERVICE PERSONNEL HAVE AVAILABLE AN
ACCURATE AND RELIABLE HIGH VOLTAGE METER. THE CALIBRA
TION OF THE METER SHOULD BE CHECKED PERIODICALLY
AGAINST A REFERENCE STANDARD, SUCH AS THE ONE AVAILABLE
AT YOUR DISTRIBUTOR.
4. WHEN THE HIGH VOLTAGE CIRCUITRY IS OPERATING PROPERLY
THERE IS NO POSSIBILITY OF AN X-RADIATION PROBLEM. EVERY
TIME A COLOR CHASSIS IS SERVICED. THE BRIGHTNESS SHOULD
BE RUN UP AND DOWN WHILE MONITORING THE HIGH VOLTAGE
WITH A METER TO BE CERTAIN THAT THE HIGH VOLTAGE DOES
NOT EXCEED THE SPECIFIED VALUE AND THAT IT IS REGULATING
CORRECTLY, WE SUGGEST THAT YOU AND YOUR SERVICE ORGA-
NIZATION REVIEW TEST PROCEDURES SO THAT VOLTAGE REGU-
LATION IS ALWAYS CHECKED AS A STANDARD SERVICING PROCE-
DURE. AND THAT THE HIGH VOLTAGE READING BE RECORDER ON
EACH CUSTOMER’S INVOICE.
5. WHEN TROUBLESHOOTING AND MAKING TEST MEASUREMENTS IN
A PRODUCT WITH A PROBLEM OF EXCESSIVE HIGH VOLTAGE,
AVOID BEING UNNECESSARILY CLOSE TO THE PICTURE TUBE AND
THE HIGH VOLTAGE SUPPLY. DO NOT OPERATE THE PRODUCT
LONGER THAN IS NECESSARY TO LOCATE THE CAUSE OF EXCES
SIVE VOLTAGE.
6. REFER TO HV. B+ AND SHUTDOWN ADJUSTMENT PROCEDURES
DESCRIBED IN THE APPROPRIATE SCHEMATIC AND DIAGRAMS
(WHERE USED).
SUBJECT: IMPLOSION
1. ALL DIRECT VIEWED PICTURE TUBES ARE EQUIPPED WITH AN INTE
GRAL IMPLOSION PROTECTION SYSTEM, BUT CARE SHOULD BE
TAKEN TO AVOID DAMAGE DURING INSTALLATION, AVOID
SCRATCHING THE TUBE. IF SCRATCHED REPLACE IT.
2. USE ONLY RECOMMENDED FACTORY REPLACEMENT TUBES.
SUBJECT : TIPS ON PROPER INSTALLATION
1. NEVER INSTALL ANY PRODUCT IN A CLOSED-IN RECESS, CUBBY-
HOLE OR CLOSELY FITTING SHELF SPACE. OVER OR CLOSE TO
HEAT DUCT, OR IN THE PATH OF HEATED AIR FLOW.
2. AVOID CONDITIONS OF HIGH HUMIDITY SUCH AS: OUTDOOR PATIO
INSTALLATIONS WHERE DEW IS A FACTOR, NEAR STEAM RADIA-
TORS WHERE STEAM LEAKAGE IS A FACTOR, ETC.
3. AVOID PALCEMENT WHERE DRAPERIES MAY OBSTRUCT REAR
VENTING. THE CUSTOMER SHOULD ALSO AVOID THE USE OF DEC-
ORATIVE SCARVES OR OTHER COVERINGS WHICH MIGHT
OBSTRUCT VENTILATION.
4. WALL AND SHELF MOUNTED INSTALLATIONS USING A COMMER-
CIAL MOUNTING KIT. MUST FOLLOW THE FACTORY APPROVED
MOUNTING INSTRUCTIONS A PRODUCT MOUNTED TO A SHELF OR
PLATFORM MUST RETAIN ITS ORIGINAL FEET (OR THE EQUIVALENT
THICKNESS IN SPACERS) TO PROVIDE ADEQUATE AIR FLOW
ACROSS THE BOTTOM, BOLTS OR SCREWS USED FOR FASTENERS
MUST NOT TOUCH ANY PARTS OR WIRING. PERFORM LEAKAGE
TEST ON CUSTOMIZED INSTALLATIONS.
5. CAUTION CUSTOMERS AGAINST THE MOUNTING OF A PRODUCT ON
SLOPING SHELF OR A TILTED POSITION, UNLESS THE PRODUCT IS
PROPERLY SECURED.
6. A PRODUCT ON A ROLL-ABOUT CART SHOULD BE STABLE ON ITS
MOUNTING TO THE CART. CAUTION THE CUSTOMER ON THE HAZ-
ARDS OF TRYING TO ROLL A CART WITH SMALL CASTERS ACROSS
THRESHOLDS OR DEEP PILE CARPETS.
7. CAUTION CUSTOMERS AGAINST THE USE OF A CART OR STAND
WHICH HAS NOT BEEN LISTED BY UNDERWRITERS LABORATORIES,
INC. FOR USE WITH THEIR SPECIFIC MODEL OF TELEVISION
RECEIVER OR GENERICALLY APPROVED FOR USE WITH T.V.’S OF
THE SAME OR LARGER SCREEN SIZE.
8. CAUTION CUSTOMERS AGAINST THE USE OF EXTENSION CORDS,
EXPLAIN THAT A FOREST OF EXTENSIONS SPROUTING FROM A SIN-
GLE OUTLET CAN LEAD TO DISASTROUS CONSEQUENCES TO
HOME AND FAMILY.
PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS
A.C. VOLTMETER
GOOD EARTH GROUND
SUCH AS THE WATER
PIPE. CONDUIT. ETC
PLACE THIS PROBE
ON EACH EXPOSED
METAL PART

1-4a
SERVICING PRECAUTIONS
CAUTION : Before servicing the DVD covered by this service
data and its supplements and addends, read and follow the
SAFETY PRECAUTIONS. NOTE : if unforeseen circum-
stances create conflict between the following servicing pre-
cautions and any of the safety precautions in this publica-
tions, always follow the safety precautions.
Remembers Safety First:
General Servicing Precautions
1. Always unplug the DVD AC power cord from the AC
power source before:
(1) Removing or reinstalling any component, circuit board,
module, or any other assembly.
(2) Disconnection or reconnecting any internal electrical
plug or other electrical connection.
(3) Connecting a test substitute in parallel with an elec-
trolytic capacitor.
Caution : A wrong part substitution or incorrect
polarity installation of electrolytic capacitors may result
in an explosion hazard.
2. Do not spray chemicals on or near this DVD or any of
its assemblies.
3. Unless specified otherwise in this service data, clean
electrical contacts by applying an appropriate contact
cleaning solution to the contacts with a pipe cleaner,
cotton-tipped swab, or comparable soft applicator.
Unless specified otherwise in this service data, lubrication
of contacts is not required.
4. Do not defeat any plug/socket B+ voltage interlocks with
whitch instruments covered by this service manual might
be equipped.
5. Do not apply AC power to this DVD and/or any of its
electrical assemblies unless all solid-state device heat
sinks are cerrectly installed.
6. Always connect test instrument ground lead to the
appropriate ground before connection the test instrument
positive lead. Always remove the test instrument ground
lead last.
Insulation Checking Procedure
Disconnect the attachment plug from the AC outlet and turn
the power on. Connect an insulation resistance meter(500V)
to the blades of the attachment plug. The insulation resis-
tance between each blade of the attachment plug and acces-
sible conductive parts (Note 1) should be more than 1M-
ohm.
Note 1 : Accessible Conductive Parts including Metal pan-
els, Input terminals, Earphone jacks, etc.
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 static electricity.
1. Immediately before handling any semiconductor compo-
nent or semiconductor-equipped assembly, drain off any
electrostatic charge on your body by touching a known
earth ground. Alternatively, obtain and wear a commer-
cially 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 grouned-tip soldering iron to solder or unsolder
ES devices.
4. Use only an anti-static solder removal device. Some
solder removal devices not classified a “anti-static” can
generate electrical charges sufficient to damage ES
devices.
5. Do not use freon-propelled chemicals. These can
generate electrical charge sufficient to damage ES
devices.
6. Do not remove a replacement ES device from its protec
tive 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 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.
8. Minimize bodily motions when handling unpackaged
replacement ES devices. (Normally harmless motion such
as the brushing together of your clothes fabric or the lifting
of your foot from a carpeted floor can generate static elec-
tricity sufficient to damage an ES device.)

IMPORTANT M55 & M5 MECHANISM INSTALLATION NOTES
INSTRUCTION FOR HANDLING 02-55598-00 FOR M55 & M5 AS WELL AS OPTICAL BLOCK
Electrostatic breakdown of the laser diode in the optical system block may occur due to a poten-
tial difference caused by electrostatic charge accumulated on clothing, human body, etc. A ground
must be provided as follows to prevent any electrostatic charge during unpacking or repair work.
1. Ground for Human Body
Be sure to wear a ground band (1M ohm) that is properly to remove any static electricity that may
be charged on the body.
2. Ground for Work Bench
Be sure to place a conductive sheet (1M ohm) or copper plate with proper grounding on the work
bench or other surface on which the pick-up is to be placed.
3. Because the static electricity charge on the clothing does not discharge through the body
grounding band, do not let clothing to get in contact with the pick-up unit.
INCORRECT CORRECT
NOTE: Laser diodes are so susceptible to damage from
static electricity that even if a static discharge does not
ruin the diode, it can shorten its life or cause it to work
improperly.
1.Grounding band
1M ohm
1M ohm
2.Conductive Sheet
or Copper Plate
Ground Conductive
Wrist Band for Body
Ground Line
Less than
10 ohm
Conductive Gum Mat
Soldering
Iron with
Ground
wire
Caution:
Laser diodes are extremely susceptible to damage
from static electricity. Even if a static dis-charge
does not ruin the diode, it can shorten its life
or cause it to work improperly. When replac-
ing the pick-up, use a conductive mat,
a grounded soldering iron, and so on,
to protect the laser diode from
static damage.
1-4b

1-5
SPECIFICATIONS
• GENERAL
Power requirements: AC 100-240 V , 50/60 Hz
Power consumption: 45W
Dimensions (Approx.): 435x 100 x 300 mm (W x H x D) without foot
Weight (Approx.): 8.6kg
Operating temperature: 5 °C to 35 °C (41 °F to 95 °F)
Operating humidity: 5 % to 90 %
• OUTPUTS
VIDEO OUT: 1 Vp-p 75 Ω, sync negative, RCA jack x 1/ SCART (TO TV)
AUDIO OUT: 2.0 Vrms (1 KHz, 0 dB), 600 Ω,
RCA jack (L, R) x 1/ SCART (TO TV)
DIGITAL OUT (COAXIAL): 0.5 V (p-p), 75 Ω, RCA jack x 1
• System
Laser: Semiconductor laser, wavelength 650 nm
Signal system: PAL / NTSC
Frequency response: DVD (PCM 96 kHz): 8 Hz to 44 kHz
DVD (PCM 48 kHz): 8 Hz to 22 kHz
CD: 8 Hz to 20 kHz
Signal-to-noise ratio: More than 100 dB (ANALOG OUT connectors only)
Harmonic distortion: Less than 0.008%
Dynamic range: More than 85 dB (DVD/CD)
• Accessories
Video cable (1), Audio cable (1), Remote control (1), Batteries (2)

SECTION 2 CABINET & MAIN CHASSIS
CONTENTS
EXPLODED VIEWS..................................................................................................... . 2-2
1. Cabinet and Main Frame Section ............................................................................... 2-2,3
2. Exploded view parts list .............................................................................................. 2-4
3. New Loader, Rail Assembly & Loader Drive Current Change .....................................2-5-7
4. New FFC Bend Angle without Clamp
...........................................................................2-8
5. Packing accessory section............................................................................................2-9
2-1

2-2 2-3
1.Cabinet and main framesection
EXPLODED VIEWS
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2.Exploded view parts list
2-4
REF.NO. PART NO. DESCRIPTION Qty. REF.NO. PART NO. DESCRIPTION Qty.
1telnICA20-20070-71200R1sissahC1-400150-76100C
C002 01-55501-20 Decode Board(C Version) 1 R003 11-01101-03 Rocker Switch 1
01-55501-10 Decode Board(AH Version) 1
C003 01-55505-00 RS232 Board 1
1revoCpoT0-200150-76100T1)noisreVC(draoBoediV02-20555-10400C
01-55502-10 Video Board(AH Version) 1 T002 86-018002-1 Expanded Rubber 2
C005 01-55506-20 Scart Board(C Version) 1 T003 76-046001-0 Screw Washer 4
C006 68-051002-1 Shielding Box(down) 1
1draoBUSP00-30555-10700C
2tekcarB0-010010-6610SR1)pu(xoBgnidleihS1-100150-86800C
C009 85-051001-0 Snap Bushing 2
2tekcarB0-010010-6610CS
1tekcarBtracS0-300150-6620CS
C013 66-051002-0 DVD Door Clamp 2
1rooDDVD1-100150-07410C
2knistaeH0-500150-07100P1redaoL00-63880-73510C
C016 69-051003-0 Loader Clamp 1 4
C017 69-051004-0 Loader Clamp 2 2
1tekcarBRI0-110150-5610PF1revoCredaoL0-300150-86810C
1DFV00-95555-3220PF4ylbmessAtooF0-100340-38910C
FP03 75-051001-0 Display Bracket 1
12
a
i
csaF0-400150-07100F
1rosruCgniR0-200150-07200F
F003 76-051001-0 VFD window 1 S001 61-023206-1 Self Taping Screw (BTB3X6) 7
F004 77-051001-1 Cursor Holder 1 S002 61-022506-6 Machine Screw (MB2.5X6-Ni) 2
F005 87-048002-0 Input Button Pad 4 S003 86-004002-0 Washer (ĭ3˅2
F006 87-048003-0 Power Button Pad 2 S004 61-023218-0 Self Taping Screw (BTB3X18) 2
F007 86-046001-0 Led Lens Gum 1 S005 61-224512-1 Hex Head Screw (M4X12) 6
7)8X4M(wercSdaeHxeH1-805422-16600S1sneLdeL0-100800-67800F
F009 70-048013-0 Power Button 1 S007 61-063106-0 Self Taping Screw (STF3X6) 2
F010 92-048001-0 Spring for Button 6 S008 61-023106-2 Self Taping Screw (STB3X6) C:23
81:HA)6X3BTS(wercSgnipaTfleS2-601320-162nottuBtupnI1-210840-07110F
F012 70-051006-1 Stop-Menu Button 2 S009 61-024108-1 Self Taping Screw (STB4X8) 4
F013 70-051007-0 Enter Button 1 S010 61-373506-0 Machine Screw (MB3X6W.S-Ni) 10
F014 92-051001-0 Spring for Cursor 4 S011 61-023508-0 Machine Screw (MB3X8) 6
6)iN-6X3BTS(wercSgnipaTfleS1-601320-16210S1PPF00-40555-10510F
4)rC-8X6BM(wercSenihcaM0-805642-16310S11aicsaF1-300160-07610F
2)3M(tuN2-203010-26410S2gniddaPaicsaF0-200640-68710F
2)iN-4X3BM(wercSenihcaM1-405320-36510S1
F019 86-010004-0 3mm Rubber Pad 3 S016 61-083108-0 Self Taping Screw (STPW3X8) 4
S017 61-073108-0 Self Taping Screw (STO3X8) 2
R001 67-051003-2Rear Panel (C Version) 1 S018 61-023208-0 Self Taping Screw (BTB3X8) 7
67-051005-2Rear Panel (AH Version) 1
New PN 67-051002-1
67-051005-2 Subfacia painted black
F018

(P/N:70-051009-0)
Sleeve 4PCS
(P/N:14-55505-10)
5Pin Wire
XY-A33Loader
(P/N:36-00033-00)
Rail 2PCS
(P/N:70-067004-0)
Screw 4PCS
(P/N:61-023208-0)
FFC Folded with Tape
(P/N: see chart)
Screw 4PCS
(P/N:61-083506-0)
New Style DVD Door
(P/N:J70-051021-0)
New XY-A33 Loader and Rail A ssembly, Part Number 02-55598-00 for the M55
(may include either J36-00313-00 or J37-00313-00 traverse)
New Spare Part Door
part of kit #02-55598-00.
New Style DVD Door
(P/N:J70-051021-0)
Door Clamps and
Door Clamp Screws
P/N 66-051002-0 &
63-023504-1. Part of
kit # 02-55598-00.
New 5Pin Wire (P/N:14-55505-10) For XY-A33 Loader
NOTE: Connector at the loader end is reversed from Decoder end.
(part of kit #02-55598-00)
Height Adjustment Spacers 4PCS
(P/N:63-110603-0)
Remove Line Clamp
Remove Standoffs
Quantity Comments
1without traverse
4 attached to loader
2 attached to loader
1 attached to loader
2 attached to loader
2 attached to loader
1 attached to loader
4 powder coated
4 use to fine adjust height
4 machine screw black
1 210mm M5 folded 96°
1 180mm M55 folded 96°
2+1 R477 & R478 (1 extra)
1 traverse to decoder board
*M5 FFC with tape 195mm folded 96° part number 14-50524-30
6Pin Wire short 14-55506-11
FFC M5 with Tape
FFC M55 with Tape
14-50524-10*
14-55524-30
4.7 ohm SMD 07-90479-00
14-55505-10
66-051002-0
63-023504-1
J70-051021-0
Height Adjustment Spacers 63-110603-0
XY-A33Loader
61-023208-0
70-067004-0
36-00033-00
5Pin Wire M5 & M55
Door Clamp
Door Clamp Screws
DVD Door
(complement of parts)
New XY-A33 Loader and Rail Assembly, Part Number 02-55598-00
Rail Screws 61-083506-0
Description Part Number
Loader Screws
Rail Black
Sleeve Black 70-051009-0
2-5 2-6

DECODE BOARD TOP
When installing the kit 02-55598-00 change R477 and R478 to 4.7Ohms.
This is to slow down the motion of the DVD tray.
C475
R105
B49
R409
R455
R400
R61 R15
R68
X4
R67 R60 R12
U11
X3
U6
R51 R64
R52
B59
C467
Q6
CN17
CN14
R184 R183
R82
R408
R401
U30
U29
B1
XM1
J3
CN15
C407
C494
R1
R2
CN20
R477
R478
C412
R496
R495
R494
R498
R466
C243
R465
R497
C240
C501 C458 R493 R488
IC18
C503
C453
R431
R486
R485
R491
C462
R449
R427
C455
C459
C479 R487
R441
C233
C463 R492 C502
CN19
C470
B84
IC25
B83
XM2
B5
L35
C497
C498
C493
C500 C499
CN18
C441
C232
IC23
R432
R444
R447
R448
C473
C465
C464
C486
C484 C474 R489 R490
C485
C468
C488
IC17
IC19
IC24
C466
D24
Y1
R166
D25
C449
L31
U12
U20
R108 R107
B52
RP7 B53
RP15 RP10
IC15 IC26
C451
C450
IC16
J6
Q44 Q43
IC21
R461 R473
R460
C482
L36
C490
C422
C423
R421 C420 C419
C425
C234
C492
R463
C489
C20 TP7
R394
C217
R176
U3 P10
B51 R175
U21
R389 C37
C207
Q5
U27
R407
C206
D21
C38 R390
B60
B48
R388
R174 D20
R119
R392
B108
R391
P7
TP4
TP5
TP1
TP2
TP3
B6 R188 XM4
R168 R167
Y3
J1
B58
B19
R405
R396
R395
D35
Q42 Q37
R406
D23 D22
R106
D33 D36 D34
Q56
R109
U13
B18
B17
B16
R403
Q41 R398
B97
R397
Q40 R393
Q36
U9
R117
RP5
U31
R186 R88 R178
R187 R185
R152
R87
B57
TP6
RP12 RP14 RP13 RP6
R70
R55
B56
C230 C204 C205 C212 C209 C208 C211
B75
R189
R180
FB6
B91
U10
R104
RP11
R92
R156 R93
RP9 RP8
R425
B62
B55
R143
FB7
B22
Q2
D1
FB1 FB4
B54
B76
B74 R118
RP2 RP1
RP3
R179
TP8
TP10
TP11
TP16
TP12
TP13
R177
TP14
TP15
C54
B94
U26
B96 B95
U23
B64
U22
C216
C55
B92
U28
B93
U25
JP2 U38
B87 C213
B90
U24
JP6
U37
C214
B86
B85
B3
XM3
C215
R379 R378
R387
R386
Q54 Q52
R372 R373
R376
R381
Q28
Q3
R380
R385
DR
P8
B98 B99
DL
FR
P6
B104
B105
FL
SUB
R374
Q50 Q34
R382 R383
R375 R377
R384
Q32 Q30
CC
RS
B102 B103
B106 B107
LS
P9
2-7

Remove and Discard Line Clamp & FFC & Standoffs
For original Loader (production loader) use 90° angle
Use double sided tape to affix the FFC to the chassis floor
New and Old FFC Bend Angle M55
96°
FFC angle for the new XY-A33 Replacement Loader
Do not use Line clamp and standoffs; tape to chassis floor

2-9
3.Packing accessory section
Shipping Box
Gift Box
Polyfoam(down)
Polyfoam(up)
Accessory Box
Batteries REMOCON

Audio and Video Cable
AC Cord

SECTION 3
ELECTRICAL
CONTENTS
ELECTRICAL TROUBLESHOOTING GUIDE……………………………………..3-3
1. Power check flow…………………………………………………………………………3-3
2. System operation flow……………………………………………………………………3-4
3. Test & debug flow…………………………………………………………………………3-5
DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGING…….…3-11
1. System 27MHz clock,reset,flash R/W signal………………………………………….3-11
2. SDRAM clock……………………………………………………………………………..3-12
3. TRAY OPEN/CLOSE signal……………………………………………………………..3-12
4. SLED control related signal(NO disc control)…………………………………………3-13
5. LENS control related signal(NO disc control)…………………………………………3-14
6. FOCUS control related signal(NO disc control)………………………………………3-15
7. SPINDLE control WAVEFORM…………………………………………………………3-16
8. FOCUS ON WAVEFORM………………………………………………………………..3-17
9. ES6168F Audio optical and coaxialoutput(SPDIF)……………………………………3-18
10. ES6168F Video output to Audio DAC………………………………………………….3-18
11. RF WAVEFORM………………………………………………………………………….3-20
12. HDMI……………………………………………………………………………………….3-20
13. MT1389 Audio output to Audio DAC……………………………………………………3-22
14. Audio output(1KHz odB)…………………………………………………………………3-22
BLOCK DIAGRAMS……………………………………………………………………….3-23
1. Overall block diagram……………………………………………………………………3-23
2. Power(SMPS) block diagram……………………………………………………………3-24
3. SERVO block diagram…………………………………………………………………...3-25
4. MPEG & MEMORY block diagram……………………………………………………..3-26
5. Video & Audio block diagram……………………………………………………………3-27
6. GENESIS.SCART & DVI block diagram……………………………………………….3-28
CIRCUIT DIAGRAMS……………………………………………………………….……3-29
1. Power(SMPS) circuit diagram………………………………………………………….3-29
2. SYSTEM circuit diagram………………………………………………………………..3-30
3. DSP circuit diagram……………………………………………………………………..3-32
4. H-Power Driver circuit diagram…………………………………………………………3-34
5. RF circuit diagram……………………………………………………………………….3-35
6. DSD circuit diagram……………………………………………………………………..3-36
7. Audio circuit diagram…………………………………………………………………….3-38
8. Connect circuit diagram…………………………………………………………………3-40
9. Timer circuit diagram…………………………………………………………………….3-41
10. RS232 circuit diagram……………………………………………………………………3-42
11. SCART circuit diagram…………………………………………………………………..3-43
3-1

12. FIL2300 circuit diagram…………………………………………………………………3-44
13. K-VIDEO circuit diagram………………………………………………………………..3-46
14. DVI circuit diagram………………………………………………………………………3-48
CIRCUIT VOLTAGE CHARGE………………………………….…………………3-49
PRINT CIRCUIT BOARD DIAGRAM…………………………………………………3-57
1. DECODE P.C.BOARD…………………………………………………………………...3-57
2. KEY P.C.BOARD…………………………………………………………………………3-59
3. SMPS P.C.BOARD……………………………………………………………………….3-61
4. VIDEO P.C.BOARD………………………………………………………………………3-62
5. RS232 P.C.BOARD………………………………………………………………………3-64
6. SCART P.C.BOARD……………………………………………………………………...3-65
3-2

3-3
ELECTRICAL TROUBLESHOOTING GUIDE
No 5VS
No 5VD
Is 5VDsection working?
Is 5VDpresent at input
of U911?
Replace U911.
Is there a DC voltage At
(+) terminal of B900?
Is there a AC voltage at
one terminal of RT900?
Replace U900.
Check FH900
1. Power check flow
No VF+
Is 5VDsection working?
Replace D910
Check D910
NO
YES
YES
YES YES
YES
Replace RT900.
YES
Replace B900.
YES
No
A. B.
NO
NO
NO
NO

3-4
2. System operation flow
Power On
1. ES6168 initializes SERVO & the other DSPs
Show LOGO
Tray Closed?
Tray Close to Closed position
NO
SLED at Inner
Side ?
SLED Moves to Inner Positi on
NO
YES
YES
Reci eve
OPEN/CLOSE
Key?
1. Execute Pressed Key & IR Key
2. System operation Routine Loop
NO
1. Stop Playback & Open Tray
2. Display tray open message & LOGO
Receive
CLOSE Key?
NO
YES
YES
1. Judge whether have disc and disc type
2. Jump to related disc reading procedure

3-5
3. Test & debug flow
TEST
Check the AC Voltage
Power PCBA(110V or 220V)
NO Replace power PCBA or
AC transformer.
YES
Switch on the Power PCBA
Is the DC Voltage
outputs OK?
(5V,3.3V,9V,12V,15V)
Repair or Replace Power PCBA
NO
Make sure the main PCBA don't
short on VCCs and switch it on.
YES
Is 3.3V,1.8V and 2V DC
outputs normal on main
PCBA?
Check the regulators or related diodes.
NO
YES
Insert the upgrade disc to update
the FLASH memory code.
Update FLASH
successfully?
A
YES
NO
1. Check 27MHz system clock.
2. Check system reset circuit.
3. Check FLASH R/W enable signal LOE#,WRLL.
4. Check servo related circuit.
5. Check FLASH Memory related circuit.

3-6
A
RESET or Power On.
NO NO
YES
NO
YES
NO
YES
YES
B
NO
NO
NO
YES
YES
NO
NO
YESYES
YES
Show LOGO? Flash Memory operates
properly?
Check connection lines between FLASH
&ES6168 and the FLASH access time
whether is suitable or not.
SDRAM works properly?
Check connection lines between
SDRAM & ES6168 and the SDRAM
is damaged.
ES6168 and
Video ICs outputs
properly?
Check the related ICs and circuit of
video board.
Have TV signal output? Check the filtering and amp circuit of
TV signal.
Check AV cable connection
to TV set.
Does Tray move
inside when it is not
at closed position?
Normal OPEN_SW&
CLOSE_SW signals?
Check the load OPEN & CLOSE
switch
Normal LDM1 &
LDM2 signal?
Normal EJ+ & EJ-
signal?
Check the cable connection
between main PCBA and loader.
Check the Tray control IO pins on
CXD1885 &FAN8042.
Check the Tray control amplifying
circuit on Motor driver.