Sanyo DVD-5100 User manual

Brand: Sanyo

Model: DVD-5100

Type: User manual

Service Manual

CONTENTS

IFILE NO.

DVD-5100 (ss)

(AU)

(AR)

SPECIFICATIONS .................................................. 1

LASER BEAM SAFETY PRECAUTION .................. 1

MECHANISM REPLACEMENT .............................. 1

MECHANISM OPERATION ....................................3

DVD P.W. BOARD OPERATION .............................4

CHECK 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

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 B SIDE) .......................85

WIRING DIAGRAM (MPEG A SIDE) ....................88

WIRING DIAGRAM (MPEG B SIDE) ....................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

1 mW(DVD) , 0.5mW(CD)

Frequency range ..................... 4

t-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 x H x D)

...............Approx. 270 x 87 x 282 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 a loader, 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, a strong magnet adjacent to the pickup will not only

get inoperative but can damage the pickup if a small metallic piece,

such as a screw or swarm, enters.

The loader edge can cause injury if inadvertently handled.

Do not touch a rotating disk, or injury may result.

This product is a precision device. Handle carefully.

A shock 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 a drop from a height of approx. 90 cm under the packed condition.

After the initial shock, the resistivity will still remain at a level of 50

to 60 G, but the mechanical robustness will weaken.

Do not place in a dusty 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 a broken 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).

A low quality power source may well cause malfunction.

(Storage)

Do not place or store in a dusty place or a place 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 a pickup, 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

‘(!3

3. Base mechanism mounting PART

SILICON GREASE

KS-64

‘1

5. BASE MECHANISM PART

PICK UP part@ Don’t resolution for regulation difficulty.

2. TRAY AND BASE MECHANISM PART

/’- .,.

(1’-’-,),

FLOIL OIL

G-474B

+$ ,

‘ ~,1,

$!$ ““

~ k’ L’.-l

‘i

‘lli

4. TRAY PART

&“

GREASE

cDF~09

6. SLED MOTOR PART

f--?>

KOTE

L“

50L

-2-

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.

@/g

1’

‘\...&

(2).

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 a tray with the state that turned the entire surface of a

tray into approximately 5 degrees the lower part slowly.

LARGE TOOTH

& ,

Rle

GREASE

EM-50L

RIB

{

CHASSIS HOLE

—

MAtiKER

-3-

( (

(

.————————---- .

FLGA, FLGB, FLGC, FLGD, * CCE,

@ma

-e

ACT.

BUCK. BUSO, BUS1 , BUS2. BUS3,

SCD, SCL, SCB, * FRST,

* FRiT( * R’ST), SLD-LK, SBOK,

I A, B, C, D,E, F

CD/ * DVD, DPCTL, LCSW

, VCC, VC, GND

IC501

SBSY, SLD-LOCK

t TA1254AF I I

[LD, MD, VR, HFM

RF (CD)

TE, RPO, RPZ, LVL

;

LCD1, LCD2

●

4.2V

EQB, EQF (Equalizer Ajust.)

8 1 /

from BACK END

VCD

16.9 MHz

384 t%

L---4

IC701

DMO.C

TC9461 F

*ROM, *RD

DO- D7, A0-A1l

MICOM

FLASH

MEMORY

DVD/* CD, * FRST,

SPDL-FG

r3-l--

* CS3, ( * CS2), * SWR,

* INTDEC, * RD, * FRST,

(* RDY), (BCLK),

DO- D1, AO-A1

—

;

I--- HR~T

from BACK END

DVR

2.1 /1.65

SLED

MOTOR

‘~

FOO, TRO, FMO

.——

LD1 , LD2

;

Mechanism SW (OPEN, CLOSE, The internal circumferenceLIMIT)

-———---- -- J

DVD P.W.BOARD OPERATION

(Actuating description)

1. After turning on the power or inserting a disk, this DVD Assy starts to perform a disk 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 a CD player.

C&M 25pin W

T~&3 =

TP512 %

@J”

pick return play (If there IS pick m perimeter of a circle,

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)

Image

Focus point

Don’tServoon

Selvo on

Disc distinction

4 *

stopp,d

I -

an. Iv

cn2-5omv . Wolmtav

Oc ml w ml

(Imnstmvl

Disc distinction

gist distinction.

‘m

Disc distinction

~to~d~

CH1=lV CH2=lv CHS=2V CH4=2V

200me/@

Dc 101 :

Dc 101

Dc 101 DC 101 (200ms/dv)

stopped

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

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 a PWM data (TC90A41 ) and provides a voltage for the TA1 254.

Sto9Ded

“’ I

““’ “’”’

?+ x

u ~

>iskDistmctmn

Fsearch

Inn&r

From Exter From

inner

H--+y4+~

‘tA ‘ :

ServoA@just.

~ lNITAttentirm

Exter

SkrvoAdjust.

TC90A41 F + Micon setting

to Pu

Equalize voltage

~11

;~]~mw;=

.............................~,~pp

ILY

LDP2 57

II = b“:

P2AI 58

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 F

Amp 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,-

——

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 a CD, and “DMO DVD” (TC90A41AF)

in the case of a DVD, 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 V for a DVD, and 2.1 V for a CD.

(3) The PLL control is conducted by the TC9461 for a CD, and by the TC90A41 AF for a DVD.

(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)

Turn on power.

Two-layer DVD

------1------

.—

Depressopen/close

switch.

Place a disk

on tray,

=---

e------

——---..

Laser on.

Lowers lens

----

4-------Y

‘“”-%”‘“-”

“LASER” Iighta.

Lowers lens

(approx. 400 ins).

I Aliqns tracking balancel

rror judgemen

EQB

Error judgemen

Pickup returns.

FOCUS OK?

YES

I Waits foraDmox.500ms.l

8/12 cm

identification.

FG confirmation

—

Rotates at a speed of

approx, 0.7 time

that of CD

Aligns tracking balance

Rotates at a speed of twice that of CD.

Error judgeme

TIME OUTERR.

.-——.....----

Lowers lens with

each lCin DVD mode

0“””’--””

——

CD “---

ne-layer or

two-la er

Two- ayer

)ne-layer

omplete

—~ Two-layer completed

TRACKING ON

SLED OFF

200ms wait

ADDRESS CHECK

Measures poor playability varlue

FE pulse 1 or 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

-8-

CHECK FLOW AND TROUBLE SHOOTING

(Power on) An extractfrom “GENERAL FLOW”

(Tray open / close) An extract from “GENERAL FLOW”

Check for connector

Turn on power,

and power source.

“LASER” lights.

Pickup returns.

8/1 2 cm identification

I__T

Identifies disk

Sets mode

INIT processing of TC9461

Laser off 20 ms

Laser on.

Focus search

Automatic alignment

Tracking balance

Focus balance

Focus gain

Tracking gain

RF gain

Tray close/closed

“LASER” lights.

Pickup returns.

8/1 2 cm identification

Identifies disk

Sets

mode

NIT processing of TC9461

Laser off 20 ms

Laser on.

Focus search

Place a disk

on tray.

switch.

Tray open/close

Power on

lProblem/symptom

lCheck

lWaveform lSchematicdiagram preference data

ICNEI03

(pH5p)

1 lCannot be eneraised

lChack for a voltaqe of 5 V/9 V

ICheck for the HR%T.

lTurn off power at once. Check

SPINDLE/SLED servo system,

2 SPINDLE motor runs away.

Check for FLOW signal.

Check and trace control signals.

Turn off power at once. Check SPINDLE/SLED servo system.

3 SLED motor runs away.

Check for FLOW signal.

Check and trace control signals.

(17)(19)

BA6849 voltage table (4)

(44)(45)

A,B

(46) A,B

I BA5931 voltage table (5)

(47)(48)

Tray open/close

Problem/symptom

Check

Waveform

Schematic diagram Reference data

Check for motor drive input/output.

(1)

BA5931 voltage table (6)

1 Neither opens nor closes

Check mechanical switch & its output.

(16)

Check for HRST & FRST.

(18)(19)

2 Opens but immediately closes.

Check for motor drive input/output.

(1)

J BA5931 voltage table (6)

Check mechanical switch & its output.

(

)

3 Opens but motor does not stop.

Check for motor drive inpufJoutput.

;1;

BA5931 voltage table (6)

Check mechanical switch & its output.

(16)

4 Loading speed abnormal

Check for motor drive input/output.

(1)

BA5931 voltage table (3)-

-9-

CHECK FLOW AND TROUBLE

(LASER ON/ 8/12 cm identification)

An extract from “GENERAL FLOW”

Trayclose/closed

“LASER”

lights.

Pickup returns.

8/12 cm identification

Identifiesdisk

Sets mode

I I

INIT processingof TC9461

Laser

off 20 ms

Laseron.

Focussearch

-“4

SHOOTING

(Laser focus search after initial processing.)

An extract from “GENERAL FLOW”

“LASER” lights.

Lowers lens

(approx. 400 ins).

Pickup returns.

lSpINDLE motor turns on. I

8/12 cm identification.

FG confirmation

Rotates at a speed of

approx. 0.7 time that of CD

Turnonpower.

“LASER” hghts.

Pickup returns,

8/1 2 cm identification

Identities disk

Sals mode

Laser on.

Focus search

Automatic afignment

Tracking balance

Focus balance

Focus gain

Tracking gam

RF gam

DVO / CD

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.

)isk rotates at a high speed.

Check SPDL FO.

Turn off power at once.

Check SPINDLWSLED servo system.

Turns on laser.

Lowera Iena.

Rotates SPINDLE at

a speed of twice

that of CD.

Waita for prescribed

number of rotatlona to

COrIIDleted.

FOCUS OK?

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)

{

disk identification

(28

)-(31)

Focus servo inactive

Check waveforms up to gfocus ok” with each disk. (34)(35)(37)(38)

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 )

-1o-

Waveform Schematic diagram Reference data

(18)(19)

TA1254 voltage

table (2)

(28) - (31)

[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”

“LASER” lights.

Pickup returns.

8/1 2 cm identification

I Measures FE level (a) I

~’

Lowers lens with each IC

in DVD mode

Rotates at a speed of two times that of CD

Laser on.

Focus search

Automatic alignment

Tracking balance

Focus balance

Focus gain

Tracking gain

RF gain

Measures FE level (b)

Two-layer DVD

YES

one-layer DVD

Sets one-layer DVD circuit to

Sets CD circuit to

Sets two-layer DVD circuit to

pickup mode.

pickup mode

Disk identification/mode setting

IProblem/symptom

]Check

IWaveform ]Schematic diagram preference data

lCheck that disk identification is correct.

2 F

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.

2 Not focusable

Check LASER current (R51OO).

(disk error) Error 21 Compare it with that indicated close to pickup’s serial number,

3 No focus search

FLGC TP716 (IC900 80pin)

4 No focus search

Check RFO (IC501 pin 28),

(2) - (4) F

Wrong ROM

5 inactive

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

Laye

Identifies disk

Sets mode

INIT processing of TC9461

Laser off 20 ms

Tracking balance alignment

Rotates at a speed of twice that of CD.

100ms wait

Turns on laser.

Focus search

Automatic alignment

Tracking balance

Focus balance

Focus gain

Tracking gain

RF gain

DVD I CD

DVD

Internal circumference

optimization

DVD

Sets to normal speed.

TRACKING ON

100ms wait

SLED OFF

I ADRESS CHECK \

Automatic alignment block

Problem/symptom

Check

Waveform

Schematic diagra

Reference data

Focus unstable

focus servo system.

(24)-(27)

1 Susceptible 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

2 Susceptible 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

3 Unable to alignldisk error

Laser deteriorated? (Check laser current:R51 00)

Check for dirt on lens

4 Long time taken for alignment

Check FWD.

Voltage table (2)

-12-

CHECK FLOW AND TROUBLE SHOOTING

(DVDinternal circumference EQoptimization alignment) AnextrarX from’’GENERAL FLOW”

Turn on laser.

Focus search

Automatic alignment

Tracking balance

Focus balance

Focus gain

Tracking gain

RF gain

GE3-S

DVD / CD

DVDI

Internal circumference

optimization

omplete

One-layer Two-laye completed

CD:TOC READ

DVD: CSS processing

External

circumference

optimization

Aligns tracking balance

EQB

EQF

Aligns tracking balance

-s@’

lTIMEOUT:ERR.1 I

.-— .— - —-— -—

r two-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)

Voltage table

1 DVD disk unplayable Warp, small

3T, affected by double refraction?

(1)

Defect, eccentricity, surface shaking?

2 DVD disk unplayable Check RF waveform. Compare with good unit.

(2)(3)(4)

-13-

CHECK FLOW AND TROUBLE SHOOTING

(DVD

eXhMTIZd CkCUITIf13renCe EQ O@hkatiOII alkJI’IITN?nt) An ~~t~~Ct from “GENERAL FLCJ,AJ”

Wtomatic alignment

Tracking balance

Focus balance

Focus gain

Tracking gain

RF gain

DVD I CD

DVD

Internal

circumference

optimization

ompleted

One-layer <_

CD : TOC READ

DVD : CSS processing

Two-layer

:ompleted

oEiEEl*-”

1141ignstracking baiance.1

EQF

I PLAYBACK I

—.— -—. —-— -

DVD

Pickup moves outward

DVD / CD

STOP

External

‘d

d+%:

circumference

optimization

ompleted

DVD external circumference EQ optimization alignment

Problem/symptom Check

Waveform

Schematic diagram

Reference data

Check for propriety of RF EQ alignment.

3, (35)(38)

1 Two-layer DVD disk unplayable

warp, small 3T, affected by double refraction?

defect, eccentricity, surface shaking?

Check RF waveform.

Compare with good unit.

(2)(3)(4)

Jumps correctly to 2nd layer?

(49)(50)

4 Error 22 occurs. Check TE waveform.

(36)-(38)

-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

DVD/CD

DVD

Internal

circumference

optimization

Two-layer

Layer jump

Pickup moves outward.

STOP

‘laying CD

Problem/symptom

Check

Waveform Schemallc diagram Reference data

1 Unplayable (no sound, no picture) Is output signal around?

(5)-(10)

D,E

2 Sound skipped

Check waveform.

(11)-(15),(33)

D,E

3 No or intermittent sound Is spindle motor waveform normal? 1,(5)-(10) D,E

4 No 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

5 DFTN: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.

lVoltage table (11)

TROUBLE SHOOTING (CHECK WAVEFORM)

-Respond to numbering of each list of “CHECK FLOW AND TROUBLE SHOOTING”

(1)

Cm!m

(3imD

Cm3

(zmD

(3)

PIDI

Plcl

PIBI

PIAI

(2)

...r.._

NORq lmSl,

.St.PPed

~FdIer ~

PIDI

Sh4C0TH ON

Plcl

-F!lter -

BW FULL

PIBI

SMOOTHW

~o+fset ~

rIw

fULL

PIAI ,+

CH1 O,(WOV

eoffset =

CH2 o mob’

CH3 O,mov

CH I 0,0000V

C442 O,mov

Cfu -O,olov

o.omv

Recwd Len ~

z -O,olov

a+ .,.-.,..,.l.,-~’~,. .+-p --. 1+11 ~,,,,,, ,,,

MIN Icw

c Record LeII y

OPENLII :

CLOSEIP

ZOOM mu

Mnlw

ZoOw 1%

%%”’=’ - m *

~oelay-

O,ouuMmw,

off q

~Hcid Off ~

MIN

Trigger=

MIN

w ro

~ T,iww =

T“

IWTO

. GH1 +

Zoom

(4)

SfOPfwd

w?q 10044 ws

‘E ,Wv cl)% WV

500ns/dv

Zoom

,Toppe.

Nc4tq 103MS1S

‘RICA

v Cl!l!101v mwsla.

The dark waveforms are of reference nature.

Please note their overall level and noises.

(5)Normal play (1track)

@mm

CmD

CLmD

i’

CmD

Oi?iD

(6)OdB play

I I

o.omv

CH2 o.omv

(x43 o Ulnlv

cm -0.010V

Record Len=

MFIIN

ZOOM 5%

a Delay -

0.W30 00000s

~Hold Of f ~

MIN

~ Triggw =

nUTO

ECQE

C143 f

~ FUter ~

SMOOTH ON

B W 21?.4Hz

eoffset ~

CH1 o.tunlv

CH2 0.000V

(X3 Oolmv

cub -0.olov

E Rec.wd Len Y

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

Bw 20!54!,

-offset y

CH3 OJX30V

CM -0.OIOV

E Record 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

q Eu4 01s

‘b! 107 v ‘ii? 1.7 v Cl&In? v cli! 103 “ mj)m

CM1 O.LICQV

cm O,mv

cm O.cilnv

cff4 -0.olov

E Record Len Y

LMLft 1L7U(

ZOOM. lM

llUTO

EDGE

CH3 J

(11)

TCD-721 SCRATCH 1.2mm

.,.,,.,./l

-...r--

MJRt.! 10MWs

c%10?v ‘% 10!v c~wxl v %! d v mm.

StoPP,d

~FHter _

SMOOTH ON

8 w 2WZ

1=$

-offset y

CM1 ImOov

cm O.omv

cm Omov

CH4

-O.O1OV

~ Record Len Y

MOIN %

ZOOM m

FDelayg

0.000000 w.

~lbld Off ~

(10) STOP (5us/div)

5ttPed

q 10LM s/s

c&!1Av %%103 “ %’+d v ‘E 103v ~,,j~,

w .

;

““~”‘ “ ‘“

~Fstet y

SMOOTH CU

Bw mMwz

EO+fset 5

ml Cuumv

CY+2 O.rmv

CH3 LlOmV

CH4 -0.OIDV

E Record Len Y

MRiN,

zlx+.# 5%

-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)

e rater ~

SMOOTH OFF

w 20MH,

~ Offset=

CH1 O.LWIJV

CH2 0.QOOV

ct13 0.L130v

C144

-0,0 10V

Record Len 3

w 1.4mJ 100K

Zom.t

10K

CEED

: I = -Oolov

0.000 v

E Record Len g

w MFIIN

100K

ZOOM I OK

_DeFay _

0.000006

CED

;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

103 v cbv104v c&310\ v ‘E d ‘ 1-A

—

I-Filter -

SMUOT+l OFF

BW 20M14z

~o+fset ~

CH1 0.000v

CH2 0.000v

CH3 0.000V

CH4 -D.olov

~ Record Lm Y

w MITIN lGtIK

ZOOM 10s

_ Delay ~

0.000 00s

~Hold O+f =

MIN

~ Trigger=

NORMITL

EDOE

C142 f

I .3H2 o.mv

. ...

—

I (-”’4 “m.

I I =H;

..—.

-Oolov

c Record Le. ~

w MFIIN 10LIK

ZOOM 10s

I ‘ :“ “ l%%y-

t40RM13L

EffiE

CH3 6

OED

(16)OPEN/CLOSE input/output TIMING

(1 T) POWER on reset TIMING

St.

f! Ped

NORM lot w%

_ Filter_

. SMOOTH OFF

s w 20M4Z

~ offset=

; ,.H , ~,ooo “

CH2 0.000 V

CH3 0.000V

.Pped

mm.qlook s19

‘/)210?v c%m?v Cwlo?v

momslav

_ Filter _

SMOOTH OFF

;

Sw 20MIZ

~ offset=

Cn 1 O,ooov

CW o nonv

C143 o Ooov

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)

TP512

PLAY state

(19) Power OFF->ON

@Peal

10R~

Iclk Sl,

‘E 101 v c% 1U3 v : ‘E m% v ~.~av

- Fiiter -

SMOOTH OFF

8w 20t.wz

~o+f,et =

CH1 O.ollov

CH2 O000V

CH3 0.000V

CH4 -0.010V

E Record Len Y

,lll. l<, t...+..+. .+14 +,+.} +.. +4.. .,1! 1! ,4.!

i“

MIIIN 100K

ZOOM KM

(21) PAUSE state

I I

@a ~

SFilter a

ZFilter

St.fOOTH OFF

SW FULL

SMOOTH OFF

sw FWL

POffset q w

~ offset 9

,..

CH1 O.omov

CH1 0.000ov

CH2 0.OMIOV

CH3 0,000V

CH2 0.0000v

CH4

CH3 0.000v

-0.olov

(x4 -O.O1OV

~ Record Len Y

e Record Len Y

M@JN: 10IX

ZOOM ,rx

MIMN 100K

ZOOM 10K

~DelayY

~Delay ~

0.000 00s

;

~Hdd Of+ ~

~ Hold0+f q

MIN

~ Tr&w a

MORMfIL

EDGE

CH3 f-

(22) PLAY state

(23) PAUSE state

StoPfMd

StoPPed

gFWer EE=

-Filter ~

SMOOTH OFF

SMW3T11 OFr

sw FULL

SW FULL

T&2 1+

~o+fset ~

~offst?t q

CH1 0.000v

W 1

0.000v

CH2 0.000V

CH3 0.000V

C143 0.000v

CH4 -O,olov

CH4 -0.olov

IC604

Record Len 5

E Rccot’d Len 3

7pm W

MSIN 100K

Zom.t 10s

Mt31N 100K

ZOOM 10K

IC601 ~

~Delayy

- Delay y

3pln

0.000 00s

~Hold Off g

MIN

=Hold off ~

L41N

IC601

~ Trigger=

1pinTR-

OUTO

MORMflL

EDGE

WI f

CM1 5

-19-

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Sanyo DVD-5100 User manual

Sanyo DVD-5100 User manual

Sanyo DVD-5100 User manual

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