Sanyo DVD-5100 User manual

Service Manual
L
CONTENTS
IFILE NO. I
DVD-5100 (ss)
(AU)
(AR)
SPECIFICATIONS .................................................. 1
LASER BEAM SAFETY PRECAUTION .................. 1
MECHANISM REPLACEMENT .............................. 1
MECHANISM OPERATION ....................................3
DVD P.W. BOARD OPERATION .............................4
LCHECK FLOW AND TROUBLE SHOOTING .......9
TROUBLE SHOOTING (CHECK WAVEFORM) ...16
TROUBLE SHOOTING
(SCHEMATIC DIAGRAM
FOR WAVEFORM CHECK) ................................ 34
TROUBLE SHOOTING
(SCHEMATIC DIAGRAM
FOR VOLTAGE CHECK) .....................................46
MPEG P.W. BOARD OPERATION ..........................48
CHECK WAVEFORM ...........................................55
SCHEMATIC DIAGRAM
FOR WAVEFORM CHECK ..................................58
PRODUCT CODE No.
13709101 Ss
13709108 AU
13709109 AR
EXPLODED VIEW (CABINET &CHASSIS) ..........60
EXPLODED VIEW (DVD MECHANISM) ...............61
PARTS LIST ............................................................62
IC BLOCK DIAGRAM &DESCRIPTION .................69
WIRING Connection .........................................8O
VOLTAGE TABLE ...................................................8l
SCHEMATIC DIAGRAM (DVD) ............................82
SCHEMATIC DIAGRAM (MPEG) .........................86
SCHEMATIC DIAGRAM (FRONT) .......................90
WIRING DIAGRAM (DVD ASIDE) .......................84
WIRING DIAGRAM (DVD BSIDE) .......................85
WIRING DIAGRAM (MPEG ASIDE) ....................88
WIRING DIAGRAM (MPEG BSIDE) ....................89
WIRING DIAGRAM (FRONT,AMP) .......................92
WIRING DIAGRAM (PHONE SOCKET,
POWER SWITCH,TRAY LED,
TRAY OPEN/CLOSE MOTOR,
TRAY OPEN/CLOSE SWITCH) ............................93
REFERENCE No. SM581OO77

SPECIFICATIONS
Type ........................................ DVD player
Signal format ........................... NTSC or PAL color
Laser ....................................... Semiconductor laser,
wavelength 650nm
1mW(DVD) ,0.5mW(CD)
Frequency range ..................... 4t-fz to 44 kHz(DVD fs :96kHz)
(digital audio)
Signalto noise ratio ................ More than 105 dB
Harmonic distortion .................0.003 %
(digital audio)
Wow and flutter ....................... Below measurable level
LASER BEAM SAFETY PRECAUTION
DIGITAL OUTPUT
COMPONENT VIDEO OUT
Y.............................................l.OV ~.P (75 ohm)
C~, C~...................................o.7v PP (75 ohm)
S-VIDEO OUT
Y............................................. I.ovp.p (75 ‘hm)
c.............................................0.286VP.P ’75 ohm)
VIDEO OUT .................................l.OV P-P (75 ohm)
AUDIO OUT .................................1.2V rms
Power requirements .....................AC 110- 240V ,.50/&)t-fz
Power consumption .....................16 Watts
Dimensions (W xHxD) ...............Approx. 270 x87 x282 mm
Weight ..........................................Approx.2.4kg
Specifications subject to change without notice.
~
CAUTION -INVISIBLE LASER RADIATION WHEN OPEN AND
INTERLOCKS DEFEATED, AVOID EXPOSURE TO BEAM.
ADVARSEL -USYNLIG LASER STR~LING VED ABNING, NAR
SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION, UNDG~ UDS H’TELSE
VARNING -OSYNLIG LASER STRALN[NG NAR DENNA DEL AR OPPNAD
OCH SPARR AR URKOPPLAD. STRALEN AR FARLIG.
VORSICHT -UNSICHTBARE LASERSTRAHLUNG TRITT AUS, WENN
DECKEL GEOFFNET UND WENN SICHERHEITSVERRIEGELUNG
OBERBRUCKT 15T. NICHT, DEM STRAHL AUSSETZEN.
VARO -AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA
NAKYMATTOMALLE LASERSATEILYLLE. ALA KATSO SATEESEEN,
MECHANISM REPLACEMENT
1.Cautionary instructions in handling the assy
(Safety instructions)
Optical pickup
The laser beam used in the pickup is classified as “class 2“. Exposing
your eyes or skin to the beam is harmful. Take care not to do so.
(Caution against static electricity and leakage voltage)
Ground securely the work tables, tools, fixtures, soldering irons
(including those made of ceramic) and measuring instruments used
in the production lines and inspection departments that handIe
loaders. The workers shall also be grounded.
(Cautionary instructions in handling)
Do not touch the object lens when handling aloader, or the lens will
be stained, resulting in inadequate playability.
There is no power supply protection circuit provided for this product
or adjustmentlinspection device. Short-circuiting may lead to fire or
damage.
Take care so as to protect from exposure to water, the entry of
metallic pieces or dew condensation.
In particular, astrong magnet adjacent to the pickup will not only
get inoperative but can damage the pickup if asmall metallic piece,
such as ascrew or swarm, enters.
The loader edge can cause injury if inadvertently handled.
Do not touch arotating disk, or injury may result.
This product is aprecision device. Handle carefully.
Ashock or dropping will cause misalignment or destruction. If it
should occur, refer to clause 2.
This product is so designed as to endure an initial shock equivalent
to adrop from aheight of approx. 90 cm under the packed condition.
After the initial shock, the resistivity will still remain at alevel of 50
to 60 G, but the mechanical robustness will weaken.
Do not place in adusty location.
The entry and deposition of dirt into or on the pickup lens or moving
section will cause malfunction or degradation.
(Connectors)
Do not connect or disconnect while power is on.
Connecting or disconnecting signal wires or the main power cord
when the power is on may destruct the unit or fixture.
When connecting, push all the way in securely.
An insufficient insertion may cause a bad contact, leading to an
erroneous operation.
Do not connector disconnect roughly by an excessively strong force,
or abroken wire or bad contact may result.
Semiconductors are connected. Do not touch connector terminals
directly.
If the worker is grounded, there is nothing to worry about static
electricity, but the rust on the connector terminal surface caused by
the touch may result in bad contact.
(Power source)
The power source need be good in quality (free from instantaneous
interruptions or noises).
Alow quality power source may well cause malfunction.
(Storage)
Do not place or store in adusty place or aplace where dew
condensation is possible.
The entry and deposition of dirt or dust into or on the pickup lens or
moving section will cause malfunction or degradation.
Also, dew condensation causes rust; the rust penetrate into the
precision part of apickup, causing malfunction, or degrading the
optical quality of the internal lens and reflector, which also leads to
malfunction,
-1-

MECHANISM REPLACEMENT
1. PICK UP P.W.B PART
Short before pick up resolution by
all means delineation depadment
of PICKUP PWB
PICK-UP P,W.B
m
‘(!3
:0
~
3. Base mechanism mounting PART
n
SILICON GREASE
KS-64
‘1
8
5. BASE MECHANISM PART
PICK UP part@ Don’t resolution for regulation difficulty.
2. TRAY AND BASE MECHANISM PART
fl
.7
p
,/ ,
/’- .,.
,(1’-’-,), ,, FLOIL OIL
.
/
G-474B
+$ ,
‘~,1,
$!$ ““
~k’ L’.-l
I_ ‘i
‘lli
4. TRAY PART
&&“
GREASE
cDF~09
6. SLED MOTOR PART f--?>
w
@l
!
oKOTE
L“ 50L
-2-

I
MECHANISM OPERATION
1.How to setting the tray. 4. Move the SLIDE left side.
1. The GEAR @move from side to side. 5. Match the Hole of GEAR @and Hole of CHASSIS@.
2. Match the mark of GEAR @and mark of GEAR @.
and then install the BOSS.
3. Turn the GEAR @counterclockwise, and then SLIDE
move right side.
1
@
@
/
@/g .
Q
\
1’
‘\...&
(2). 1
0
u
II
00
I
6. Match the hole of GEAR @and hole of chassis while turning
GEAR @.
7. Match the mark of LOADING GEAR o and gear of TRAY
where see horn hole @of tray.
8.Push atray with the state that turned the entire surface of a
tray into approximately 5degrees the lower part slowly.
Y
LARGE TOOTH
&,
Rle 7
GREASE
EM-50L
IRIB
R
1
{
CHASSIS HOLE —
@
I
MAtiKER
--
-3-

(((
.————————---- .FLGA, FLGB, FLGC, FLGD, *CCE,
,
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@ma
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LD
ACT.
IBUCK. BUSO, BUS1 ,BUS2. BUS3,
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ISCD, SCL, SCB, *FRST, *FRiT( *R’ST), SLD-LK, SBOK,
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IA, B, C, D,E, FCD/ *DVD, DPCTL, LCSW
4t+
,VCC, VC, GND IC501
SBSY, SLD-LOCK
ItTA1254AF II
dI
[LD, MD, VR, HFM IRF (CD) TE, RPO, RPZ, LVL
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;LCD1, LCD2
●4.2V EQB, EQF (Equalizer Ajust.)
8 1 /
t
from BACK END
VCD
16.9 MHz
384 t%
L---4
IC701
DMO.C TC9461 FY
rh
FE *ROM, *RD
DO- D7, A0-A1l
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MICOM FLASH
MEMORY
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IDVD/* CD, *FRST,
14 SPDL-FG
r3-l--
1
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*CS3, (*CS2), *SWR,
*INTDEC, *RD, *FRST,
(* RDY), (BCLK),
DO- D1, AO-A1
7
—
;
-- I--- HR~T
from BACK END
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1
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IP
DVR
2.1 /1.65
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IF
SLED
MOTOR
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b-
9V ‘~
FOO, TRO, FMO
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1
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.——
LD1 ,LD2
I;Mechanism SW (OPEN, CLOSE, The internal circumferenceLIMIT)
-———---- -- J

DVD P.W.BOARD OPERATION
(Actuating description)
1. After turning on the power or inserting adisk, this DVD Assy starts to perform adisk identification operation.
1)Sets the circuit to the DVD mode, returns the pickup, lowers the lens an lights the LASER lamp.
The pickup return, lens operation and LASER lamp illumination are visuall recognizable. (spindle kick)
2) In PU mode (CD), raises the lens.
Focus level measurement (A), judges the FE pulse whether to be 1 or 2.
3) In PU mode (DVD), lowers the lens.
Focus level measurement (B).
4) Judgment pulse 2: DVD two-layer disk,
(B)/(A)>l.5 :DVD one-layer disc.
Other than the above condition :CD
5) Sets the circuit to the PU mode (based on the above disk judgment, the circuit is set to the PU mode)
6) Servo attracting operation (servo turns on):CLV turns on in the same way as aCD player.
B
C&M 25pin W
a
o
T~&3 =
o
TE
TP512 %
@J”
mpick return play (If there IS pick mperimeter of acircle,
CD
DVD
one-layer
disk
DVD
two-layer
disk
there is it, and”time of bottom gets longer)
Disc distinction
Focus error signal (lens distant-near)
nImage
Jk-
/Focus point
Don’tServoon
Selvo on
Disc distinction
4*
stopp,d I-
an. Iv cn2-5omv .Wolmtav
Oc ml wml (Imnstmvl
.
+
Disc distinction
gist distinction.
‘m
Disc distinction
~to~d~
ICH1=lV CH2=lv CHS=2V CH4=2V 200me/@ I
Dc 101 :
xDc 101 Dc 101 DC 101 (200ms/dv)
j
stopped 1-
C411.lV Cuz.manv -mmwm
cc Iul DC Ict :(HJamfev)
.
,, I I I
Disc distinction

DVD P.W.BOARD OPERATION
2. Automatic servo alignment
Contents of the servo alignment and the alignment method
1)Tracking balance
2) Focus balance
3) Focus gain
4) Tracking gain 1
5) RF gain
Performed automatically by the TC9461 based on the command
given by the micon (microcomputer)
Set by the command the micon, reading the correction value of the TC9461, gives to the TA1254.
6) RF equalizer (DVD only)
The micon, monitoring the error rate (TC90A41 ), sets aPWM data (TC90A41 )and provides avoltage for the TA1 254.
Sto9Ded
r-
.-
%“’ I““’ “’”’ p
?+ xu~
III
e
>iskDistmctmn Fsearch Inn&r From Exter From inner
4AH--+y4+~
‘tA ‘:
ServoA@just.
~lNITAttentirm
*u1,
+Exter
SkrvoAdjust.
TC90A41 F+Micon setting
+
to Pu Equalize voltage
~11
;~]~mw;=
.............................~,~pp
ILY
LDP2 57 II =b“:
P2AI 58
r
P2BI 59
P2CI 60
P2DI 61
\
GNDS 62
P2FP 63
P2FN
II ’11;
An automatic alignment method (e.g.
automatic alignment sequence) varies with
the version of the micon. In any case, it is
important to recognize that the above-
mentioned alignments are conducted
regardless of the version.
>DVD :TC90A41 F
CD :TC9461F
TC9461 FAmp mode setting
focus gain: F-gain, FE-gain
tracking gain :T-gain, TE-gain
RF gain :R-gain
TE :mode-TE (DPD or 3beam)
11,- —— JI
Micon I/F
-6-

DVD P.W.BOARD OPERATION
3. Data reading
(1) The SLED control is performed by the control output “FMO” (TC9461, pin 48), which reaches the IC601 via the
IC605 and drives the SLED motor.
(2)The SPINDLE control is performed by the control output “DMO CD” (TC9461) in the case of aCD, and “DMO DVD” (TC90A41AF)
in the case of aDVD, which reaches the IC602 via the IC605, whose reference voltage is set by the DVD/CD’ of the micon,
and drives the SPINDLE motor (brushless motor).
The reference voltage is 1.65 Vfor aDVD, and 2.1 Vfor aCD.
(3) The PLL control is conducted by the TC9461 for aCD, and by the TC90A41 AF for aDVD.
(4) An output is in accordance with the respective disks.
CD :TC9461 serial data (BCK, CDDATA, LRCK, C2PO) output (CN802)
DVD:TC9461 serial data (BCK, CDDATA, LRCK, C2PO) and this are inputted into the ROM decoder (IC802), converted to the
MPEG decoder signals (parallel data) and then outputted (CN801 ).
DVD:TC90A41 AF MPEG data: parallel signals (SDO-7, SE RR, SBGN, SENB, SDCK and SREQ) are inputted into the ROM
decoder (IC802), decode the digital copy protection and are converted to the MPEG decoder signals (parallel data)
and then outputted (CN801 ).
-7-

DVD P.W.BOARD OPERATION
(GENERAL FLOW)
a
Turn on power. 2Two-layer DVD
I
------1------ lJ I
,-
.—
a
Depressopen/close
switch.
*
/+\
u
Place adisk
on tray,
&
=---
e------
——---..
Laser on.
Lowers lens
*---- 4-------Y
‘“”-%”‘“-”
“LASER” Iighta.
Lowers lens
(approx. 400 ins). IAliqns tracking balancel
3
OK rror judgemen
NG
EQB
OK Error judgemen
N
+
IPickup returns. Ie
FOCUS OK? NO
YES +
IWaits foraDmox.500ms.l
o
8/12 cm
identification.
FG confirmation
*
—
Q
Rotates at aspeed of
approx, 0.7 time
that of CD
Aligns tracking balance
-
Rotates at aspeed of twice that of CD.
*
OK Error judgeme
NG
TIME OUTERR.
L+
.-——.....----I
o
Lowers lens with
each lCin DVD mode
0“””’--””
——
CD “---
ne-layer or
two-la er
Y
Two- ayer
)ne-layer omplete
—~ Two-layer completed
54
TRACKING ON
SLED OFF
200ms wait
ADDRESS CHECK
+
Measures poor playability varlue
4
r
5s
FE pulse 1or 2
Lowers lens with in
LCD and DVD mode
%
Focus balance alignment
Focus gain alignment
Tracking gain alignment
SLED ON
RF gain alignment
Pickup moves outward. STOP
Rotates at
as eedofhvo times
vtha of CD
L
-8-

CHECK FLOW AND TROUBLE SHOOTING
(Power on) An extractfrom “GENERAL FLOW” (Tray open /close) An extract from “GENERAL FLOW”
QCheck for connector
Turn on power, and power source.
+
I1
“LASER” lights.
Pickup returns.
8/1 2cm identification
I__T
Identifies disk
Sets mode
II
I
INIT processing of TC9461
Laser off 20 ms
+
Laser on.
Focus search
1
IAutomatic alignment
Tracking balance
Focus balance
Focus gain
Tracking gain
RF gain
+
Tray close/closed
“LASER” lights.
Pickup returns.
8/1 2cm identification
Identifies disk
Sets mode
I
NIT processing of TC9461
Laser off 20 ms
c1
Laser on.
Focus search
o
Place adisk
on tray.
Iswitch. I
I,
*
Tray open/close
Power on
lProblem/symptom lCheck lWaveform lSchematicdiagram preference data
ICNEI03
(pH5p)
1lCannot be eneraised lChack for avoltaqe of 5V/9 V
ICheck for the HR%T.
IlTurn off power at once. Check SPINDLE/SLED servo system,
2SPINDLE motor runs away. Check for FLOW signal.
Check and trace control signals.
Turn off power at once. Check SPINDLE/SLED servo system.
3SLED motor runs away. Check for FLOW signal.
Check and trace control signals.
(17)(19) KBA6849 voltage table (4)
(44)(45) A,B
(46) A,B
IBA5931 voltage table (5)
(47)(48)
Tray open/close
Problem/symptom Check Waveform Schematic diagram Reference data
Check for motor drive input/output. (1) JBA5931 voltage table (6)
1Neither opens nor closes Check mechanical switch &its output. (16) J
Check for HRST &FRST. (18)(19) J
2Opens but immediately closes. Check for motor drive input/output. (1) JBA5931 voltage table (6)
Check mechanical switch &its output. ()J
3Opens but motor does not stop. Check for motor drive inpufJoutput. ;1; JBA5931 voltage table (6)
Check mechanical switch &its output. (16) J
4Loading speed abnormal Check for motor drive input/output. (1) JBA5931 voltage table (3)-
-9-

CHECK FLOW AND TROUBLE
(LASER ON/ 8/12 cm identification)
An extract from “GENERAL FLOW”
J
Trayclose/closed
“LASER”lights.
Pickup returns.
8/12cm identification
I
44
Identifiesdisk
Sets mode
I I
I
INIT processingof TC9461
Laser off 20 ms
.
rLaseron.
Focussearch
-“4
SHOOTING
(Laser focus search after initial processing.)
An extract from “GENERAL FLOW”
+
“LASER” lights.
Lowers lens
(approx. 400 ins). I
m
Pickup returns.
lSpINDLE motor turns on. I
e
8/12cm identification.
FG confirmation
Rotates at aspeed of
approx. 0.7 time that of CD I
I
Q
Turnonpower.
+
“LASER” hghts.
Pickup returns,
8/1 2cm identification
o
Identities disk
Sals mode
n
Laser on.
Focus search
T
Automatic afignment
Tracking balance
Focus balance
Focus gain
Tracking gam
RF gam
6
DVO /CD co
Check VCC2 at pin 36 o; IC501 TA1254. -
Check for short-circuiting of LASER (excessive current [R51OO],
though protected by fixture)
“LASER” does not light. Check for LASER destruction. If so, check LASER current (R51OO).
Check micon interface (SCB, SCL &SCD)
Check FRST (LASER to be active at LOW).
Check signal FLOW.
Check and trace control signals.
do pickup return operation. Check SLED voltage and timing. Check limit switch.
)isk does not rotate. Check SPINDLE voltage and timing.
Check SPINDLE voltage and timing.
)isk rotates at ahigh speed. Check SPDL FO.
Turn off power at once.
Check SPINDLWSLED servo system.
+
%
Turns on laser.
Lowera Iena.
Rotates SPINDLE at
aspeed of twice
that of CD.
Waita for prescribed
number of rotatlona to
be COrIIDleted.
e
FOCUS OK? NO
YES
Waita for approx. 500 ma.
~ERON/ 8/12 cm identification
%oblem/symptom ]Check
]Check LASER ON timina and drive transistor voltaae,
er focus search after initial processing.
Problem/symptom lCheck ]Waveform lSchematic diagram preference data
Disk error due to erroneous lCheck disk identifying waveform in LASER mode, 2,(34) -(38) F{
disk identification (28)-(31) L
Focus servo inactive Check waveforms up to gfocus ok” with each disk. (34)(35)(37)(38) F
Check pin 43 of IC701 TC9461. 2,(36)
Check DFTN. (40) -(43)
DFTN:normally High, at SCRATCH: LOW C,D,E
Data output normal? CN801 /lC802 C,D,E
Disk unreadable Check DVD~CD signal (CD/’DVD). Voltage table
DVD:High, CD: LOW (44) -(46) (8)
(IC900 pin 1, IC501 pin 35, Q6001 base)
Check SEL signal (must be High when laser is on). (28) -(31 )L
-1o-
Waveform Schematic diagram Reference data
(18)(19) L
TA1254 voltage
table (2)
(28) -(31) L
L
[35) -(37) 1,1’
;44) -(46) A,B Voltage table (4)
{44) -(46) A,B Voltage table (4)

CHECK FLOW AND TROUBLE SHOOTING
(Disk identification/mode setting) An extract from “GENERAL FLOW”
6
&
“LASER” lights.
Pickup returns.
8/1 2cm identification
IMeasures FE level (a) I
1
~’ Lowers lens with each IC
in DVD mode
H~ Rotates at aspeed of two times that of CD
Laser on.
Focus search
IJ
I
Automatic alignment
Tracking balance
Focus balance
Focus gain
Tracking gain
RF gain
Measures FE level (b)
I
Two-layer DVD
1
YES
one-layer DVD
J1
Sets one-layer DVD circuit to Sets CD circuit to Sets two-layer DVD circuit to
pickup mode. pickup mode. pickup mode
Disk identification/mode setting
IProblem/symptom ]Check IWaveform ]Schematic diagram preference data
lCheck that disk identification is correct. 2F
Not focusable Check that FOO waveform is normal or smooth,
1(disk error) Error 21 Check that peak value of detection pulse (S curve) is correct, (34) -(38)
Check that lens up/down operation is normal.
Check that lens is free from dirt or stain.
2Not focusable Check LASER current (R51OO). F
(disk error) Error 21 Compare it with that indicated close to pickup’s serial number,
3No focus search FLGC TP716 (IC900 80pin) F
4No focus search Check RFO (IC501 pin 28), (2) -(4) F
Wrong ROM
5inactive Check LCSW Voltage tables
Repair CD~DVD (DVD~CD). (7) &(8)
-11-

CHECK FLOW AND TROUBLE SHOOTING
(Automatic alignment block) An extract from “GENERAL FLOW”
‘L
‘L ILaye
Identifies disk
Sets mode
+
INIT processing of TC9461 +
Laser off 20 ms Tracking balance alignment
1Rotates at aspeed of twice that of CD.
100ms wait
IJ
Turns on laser. I
Focus search
Automatic alignment
Tracking balance
Focus balance
Focus gain
Tracking gain
RF gain
+
DVD ICD
DVD
Internal circumference
optimization
*
DVD a
Sets to normal speed.
TRACKING ON 100ms wait
SLED OFF
IADRESS CHECK \
+
,t
Automatic alignment block
Problem/symptom Check Waveform Schematic diagra Reference data
Focus unstable focus servo system. (24)-(27) F
1Susceptible to shock Check for signal flow
Oscillatory noise from pickup Check for signal flow
Squeaky noise while pickup is traveling If not rotating with board, pickup need be analyzed.
Excessively long time taken for alignment tracking servo system. (20)-(23) G, H
2Susceptible to shock Check for signal flow
Oscillatory noise from pickup Check for signal flow
Squeaky noise while pickup is traveling If not rotating with board, pickup need be analyzed.
Check RF level. (2)(3)(4) C, D, E
3Unable to alignldisk error Laser deteriorated? (Check laser current:R51 00)
Check for dirt on lens
4 Long time taken for alignment Check FWD. IVoltage table (2)
L
-12-
,

CHECK FLOW AND TROUBLE SHOOTING
(DVDinternal circumference EQoptimization alignment) AnextrarX from’’GENERAL FLOW”
r
Turn on laser.
Focus search
Automatic alignment
Tracking balance
Focus balance
Focus gain
Tracking gain
RF gain GE3-S
o-CD
DVD /CD
DVDI
F
Internal circumference
optimization
v
omplete
One-layer Two-laye completed
v
CD:TOC READ
DVD: CSS processing
+
u
External
circumference
optimization
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*,
Aligns tracking balance
IEQB I
IEQF I
Aligns tracking balance
-s@’
t
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lTIMEOUT:ERR.1 I
.-— .— -—-— -—
rtwo-layer Two-lay
+‘CD
DVD internal circumference EQ optimization alignment
Problem/symptom Check Waveform Schematic diagram Reference data
Check for propriety of RF EQ alignment. 3, (35)(38) cVoltage table
1DVD disk unplayable Warp, small 3T, affected by double refraction? (1)
Defect, eccentricity, surface shaking?
2DVD disk unplayable Check RF waveform. Compare with good unit. c
(2)(3)(4)
-13-

CHECK FLOW AND TROUBLE SHOOTING
(DVDeXhMTIZd CkCUITIf13renCe EQ O@hkatiOII alkJI’IITN?nt) An ~~t~~Ct from “GENERAL FLCJ,AJ”
I
Wtomatic alignment
Tracking balance
Focus balance
Focus gain
Tracking gain
RF gain
QCD
DVD ICD
DVD
Internal
circumference
optimization
22
ompleted
One-layer <_
CD :TOC READ
DVD :CSS processing
4
Two-layer
:ompleted
I
oEiEEl*-”
I
I
II
I
I
I
I1
I
I
1-
1141ignstracking baiance.1
+
+
EQF
I
IPLAYBACK I
!
I
I
III
1
I
I
I
I
iI
—.— -—. —-— -
I
DVD CD
Pickup moves outward DVD /CD STOP
Do
External
‘d
d+%:
circumference
optimization ompleted
OK
DVD external circumference EQ optimization alignment
Problem/symptom Check Waveform Schematic diagram Reference data
Check for propriety of RF EQ alignment. 3, (35)(38) c
1Two-layer DVD disk unplayable warp, small 3T, affected by double refraction?
defect, eccentricity, surface shaking?
2,! Check RF waveform. Compare with good unit.
(2)(3)(4) c
3,, Jumps correctly to 2nd layer? (49)(50) F
4Error 22 occurs. Check TE waveform. (36)-(38) J
-14-

CHECK FLOW AND TROUBLE SHOOTING
(Playing CD) An extract from “GENERAL FLOW”
Turns on laser.
FOCUS SEARCH
Automatic alignment
Tracking balance
Focus balance
Focus gain
Tracking gain
RF gain
Two-layer completed
2CD
DVD/CD
DVD
Internal
circumference
optimization
Two-layer
ILayer jump
Pickup moves outward. STOP I
‘laying CD
Problem/symptom Check Waveform Schemallc diagram Reference data
1Unplayable (no sound, no picture) Is output signal around? (5)-(10) D,E
2Sound skipped Check waveform. (11)-(15),(33) D,E
3No or intermittent sound Is spindle motor waveform normal? 1,(5)-(10) D,E
4No sound Check DATA. (4)-(6) D,E
Poor playability Check RF waveform (any difference from that of good unit) (2)-(4) D,E
Surface shaking, warp Realignment of mechanism (11)-(15)
Scratch Check DFTN (40)-(43) D,E,H TA1254
5DFTN:normally High, When scratched: Low
Finger print Check DFTN (40)-(43) D,E,H TAI 254
DFTN:normally High, When scratched: Low (11)-(15)
Eccentricity Check treckinq servo. (33) D,E,H
Is PAUSE sta~le?
6[Frequency response characteristics ebnormal lCheck EMPHA. IIlVoltage table (11)

L
TROUBLE SHOOTING (CHECK WAVEFORM)
-Respond to numbering of each list of “CHECK FLOW AND TROUBLE SHOOTING”
(1)
Cm!m
(3imD
m
Cm3
(zmD
(3)
B
PIDI
Plcl
PIBI
PIAI
m
m
(2)
...r.._
NORq lmSl, .St.PPed
3%
~FdIer ~
B
PIDI
Sh4C0TH ON Plcl -F!lter -
BW FULL
:PIBI SMOOTHW
*+ ~o+fset ~rIw fULL
PIAI ,+
CH1 O,(WOV eoffset =
CH2 omob’
TCH3 O,mov
CH I0,0000V
m.
C442 O,mov
.Cfu -O,olov o.omv
:ERecwd Len ~z-O,olov
a+ .,.-.,..,.l.,-~’~,. .+-p --. 1+11 ~,,,,,, ,,, MIN Icw cRecord LeII y
OPENLII :CLOSEIP ZOOM mu Mnlw
ZoOw 1%
%%”’=’ -m*~oelay-
O,ouuMmw,
pw off q~Hcid Off ~
MIN
:eTrigger= MIN
.wro ~T,iww =
T“
m
EW m. IWTO
.GH1 +
.
IZoom
(4)
SfOPfwd .
w?q 10044 ws
‘E ,Wv cl)% WV ~500ns/dv I
IZoom
,Toppe.
Nc4tq 103MS1S ‘RICAvCl!l!101vmwsla.
The dark waveforms are of reference nature.
Please note their overall level and noises.
(5)Normal play (1track)
@mm
CmD
CLmD
@m
i’ CmD
I
Oi?iD I
(6)OdB play
I I CM
1o.omv
CH2 o.omv
(x43 oUlnlv
cm -0.010V
%!
~Record Len=
MFIIN
ZOOM 5%
aDelay -
0.W30 00000s
IL ~Hold Of f~
%$ MIN
~Triggw =
nUTO
ECQE
C143 f
~FUter ~
SMOOTH ON
BW21?.4Hz
,+ eoffset ~
CH1 o.tunlv
CH2 0.000V
(X3 Oolmv
cub -0.olov
ERec.wd Len Y
wMm
ZOOM 55J
eozfay~
0.000 omma
-16-

TROUBLE SHOOTING (CHECK WAVEFORM)
-Respond to numbering of each list of “CHECK FLOW AND TROUBLE SHOOTING”
(7) L-ch OdB (8track) (8) R-ch OdB (1 Otrack)
-Filter -
-SMOOTH ON
Bw20!54!,
1+ -offset y
CH3 OJX30V
mCM -0.OIOV
w
ERecord Len 3
MRIFJ
Zoc+.t 5%
~Lway3
0.000000 Ocm
m“ ~tidd Off ~
3.$ MIN
(9) STOP (200us/div)
@mm
CmD
amo
GziD
St.PPed
qEu4 01s
‘b! 107 v ‘ii? 1.7 vCl&In? vcli! 103 “mj)m
CM1O.LICQV
cm O,mv
cm O.cilnv
cff4 -0.olov
ERecord Len Y
LMLft 1L7U(
ZOOM. lM
t:llUTO
EDGE
CH3 J
..II
(11) TCD-721 SCRATCH 1.2mm
.,.,,.,./l
-...r--
MJRt.! 10MWs ~
c%10?v‘% 10!vc~wxl v%! dvmm. 1
StoPP,d
~FHter _
SMOOTH ON
8w2WZ
1=$ -offset y
CM1 ImOov
cm O.omv
cm Omov
CH4 -O.O1OV
~Record Len Y
%MOIN %
ZOOM m
FDelayg
0.000000 w.
IA ~lbld Off ~
(10) STOP (5us/div)
5ttPedq10LM s/s
c&!1Av%%103 “%’+d v‘E 103v~,,j~,1
i
~
4
w . ;
i
““~”‘“‘“
*
~Fstet y
SMOOTH CU
Bw mMwz
EO+fset 5
ml Cuumv
CY+2 O.rmv
CH3 LlOmV
CH4 -0.OIDV
ERecord Len Y
MRiN,
zlx+.# 5%
4
,
4
t
-17-

TROUBLE SHOOTING (CHECK WAVEFORM)
-Respond to numbering of each list of “CHECK FLOW AND TROUBLE SHOOTING”
(12) (13) TCD-721 SCRATCH 2.Omm (Reference)
~erater ~
SMOOTH OFF
8w20MH,
*+ ~Offset=
&CH1 O.LWIJV
CH2 0.QOOV
ct13 0.L130v
C144 -0,0 10V
ERecord Len 3
w1.4mJ 100K
Zom.t 10K
CEED
I~:I=-Oolov
0.000 v
ERecord Len g
wMFIIN 100K
ZOOM IOK
I.,
:_DeFay _
0.000006
CED c
;hows how the C2P0 rises. The C2P0
rkes invariably with large scratches, while
no or few C2P0 appear with small or few
(14)444A FINGER PRINT 19track (Is) 444A INTERRUPTION 10track
StoPPad
NOIJM 10M Sls 4
w103 vcbv104vc&310\ v‘E d‘1-A
I—I-Filter -
SMUOT+l OFF
BW20M14z
++ ~o+fset ~
CH1 0.000v
CH2 0.000v
CH3 0.000V
IL CH4 -D.olov
~Record Lm Y
wMITIN lGtIK
ZOOM 10s
_Delay ~
0.000 00s
~Hold O+f =
wMIN
~Trigger=
NORMITL
%EDOE
C142 f
II .3H2 o.mv
. ...
!—I(-”’4 “m.
II=H; ..—. -Oolov
cRecord Le. ~
wMFIIN 10LIK
ZOOM 10s
I‘:“ “l%%y-
wt40RM13L
EffiE
CH3 6
,
OED
(16)OPEN/CLOSE input/output TIMING (1 T) POWER on reset TIMING
St.
f! Ped
NORM lot w%
Y_Filter_
.SMOOTH OFF
sw20M4Z
-~offset=
.;,.H ,~,ooo “
P1CH2 0.000 V
CH3 0.000V
.Pped
mm.qlook s19
‘/)210?vc%m?vCwlo?vmomslav
1
_Filter _
:SMOOTH OFF
;Sw 20MIZ
T~offset=
Cn 1O,ooov
CW ononv
C143 oOoov
CH4 -O OIDV
~Record Le” Y
MI?lN 1OW(
ZOOM 10K
-18-

TROUBLE SHOOTING (CHECK WAVEFORM)
-Respond to numbering of each list of “CHECK FLOW AND TROUBLE S\! OOTING”
(18)
CUD
OPEN -> CLOSE (STOP state)
;...-.1 .’. {-.1 ;,rayc,osed IS Reccva Len 5
,+, .+,.1 .+++. .4<. I . ., ++ ... .,+.<..,, 1. <1.. MRIM 100K
zOC?.4 10K
_Delay_
-h’ ““m’
~Hold Off=
(20)
mm
o
TE
TP512
PLAY state
(19) Power OFF->ON
@Peal
10R~ Iclk Sl,
‘E 101 v c% 1U3 v:‘E m% v~.~av
-Fiiter -
SMOOTH OFF
8w20t.wz
~o+f,et =
CH1O.ollov
:CH2 O000V
CH3 0.000V
CH4 -0.010V
ERecord Len Y
,lll. l<, t...+..+. .+14 +,+.} +.. +4.. .,1! 1! ,4.!
i“ MIIIN 100K
ZOOM KM
+$
(21) PAUSE state
I I
@a ~ SFilter aZFilter m
St.fOOTH OFF
~SW FULL SMOOTH OFF
sw FWL
,* POffset qw~offset 9
,.. .CH1O.omov CH1 0.000ov
CH2 0.OMIOV
CH3 0,000V CH2 0.0000v
CH4 CH3 0.000v -0.olov (x4 -O.O1OV
~Record Len YeRecord Len Y
M@JN: 10IX -
ZOOM ,rx MIMN 100K
ZOOM 10K
~DelayY w~Delay ~
%0.000 00s %0.000 00s
;~Hdd Of+ ~~Hold0+fq
MIN
~Tr&w a
MORMfIL
%EDGE
CH3 f-
II
(22) PLAY state (23) PAUSE state
StoPfMd StoPPed
gFWer EE= -Filter ~
oSMOOTH OFF SMW3T11 OFr
sw FULL SW FULL
T&2 1+ ~o+fset ~1+ ~offst?t q
CH1 0.000v W10.000v
wCH2 0.000V IL CH2 0.000V
CH3 0.000V C143 0.000v
CH4 -O,olov CH4 -0.olov
o
IC604 ISRecord Len 5ERccot’d Len 3
7pm WMSIN 100K w
Zom.t 10s Mt31N 100K
ZOOM 10K
o
IC601 ~~Delayy -Delay y
3pln 0.000 00s I& 0.000 00s
~Hold Off g
MIN
=Hold off ~
L41N
o
IC601 ~Trigger= ~Trigger=
1pinTR- OUTO MORMflL
EDGE EDGE
WI fCM1 5
%w
-19-