Thomson DTH-6300-F, DTH-6300-R, DTH-6300-U, DTH-6300-E Service manual

Page 1

SERVICE MANUAL DOCUMENTATION TECHNIQUE TECHNISCHE DOKUMENTATION DOCUMENTAZIONE TECNICA DOCUMENTACION TECNICA

No copying, translation, modification on other use authorized. All rights reserved worldwide. • Tous droits de reproduction, de traduction, d'adaptation et d'exécution réservés pour tous les pays. • Sämtliche Urheberrechte an diesen Texten und Zeichnungen stehen uns zu. Nachdrucke, Vervielfältigungen - auch auszugsweise - nur mit unserer vorherigen Zustimmung zulässig. Alle Rechte vorbehalten. • I diritti di riproduzione, di traduzione, e esecuzione sono riservati per tutti i paesi. • Derechos de reproduccion, de traduccion, de adaptacion y de ejecucion reservados para todos los paises.

WARNING : Before servicing this chassis please read the safety recommendations.

ATTENTION : Avant toute intervention sur ce châssis, lire les recommandations de sécurité.

ACHTUNG : Vor jedem Eingriff auf diesem Chassis, die Sicherheitsvorschriften lesen.

ATTENZIONE : Prima di intervenire sullo chassis, leggere le norme di sicurezza.

IMPORTANTE : Antes de cualquier intervención, leer las recomendaciones de seguridad.

Code : 35841010 - 0205 / 4,8M - DTH6300 Print.

VIDEO

DTH6300

DTH6300E DTH6300F DTH6300R DTH6300U

Page 2

Indicates critical safety components, and identical components should be used for replacement. Only then can the

operational safety be garanteed. Le remplacement des éléments de sécurité (repérés avec le symbole ) par des composants non homologués selon la

Norme CEI 65 entraine la non-conformité de l'appareil. Dans ce cas, la responsabilité du fabricant n'est plus engagée. Wenn Sicherheitsteile (mit dem Symbol gekennzeichnet) nicht durch Original - Ersatzteile ersetzt werden, erlischt die

Haftung des Herstellers. La sostituzione dei componenti di sicurezza (evidenziati con il segno ) con componenti non omologati secondo la

norma CEI 65 comporta la non conformitá dell'apparecchio. In tal caso è "esclusa la responsabilità " del costruttore. La sustitución de elementos de seguridad (marcados con el simbolo ) por componentes no homologados segun la

norma CEI 65, provoca la no conformidad del aparato. En ese caso, el fabricante cesa de ser responsable.

MEASUREMENT CONDITIONS - CONDITIONS DE MESURES - MESSBEDINGUNGEN

CONDIZIONI DI MISURA - CONDICIONES DE MEDIDAS

RICEVITORE :

In UHF, livello d'entrata 1 mV, monoscopio barre :

- PAL, norma G. bianco 100%. Via SCART, livello d'entrata 1 Vpp, monoscopio barre : Colore, Contrasto, Luminositá media, Suono minimo.

Programma selezionato PR 01. Tensioni continue rilevate rispetto alla massa con un voltmetro digitale.

RECEIVER : On UHF,input level : 1 mV, bar test pattern :

- PAL, I standard, 100% white. Via the scart socket, input level : 1 Vpp, bar test pattern : Colour, contrast and brightness at mid-position, sound at minimum.

Programme selected : PR 01. DC voltages measured between the point and earth using a digital

voltmeter.

EMPFÄNGER : Bei UHF Eingangspegel 1 mV, Farbbalken :

- PAL, Norm G, Weiss 100%. Über die Scartbuchse : Eingangspegel 1 Vss, Farbbalken : Farbe, Kontrast, Helligkeit in der Mitte des Bereichs, Ton auf Minimum.

Zugeordnetes Programm PR 01. Gleichspannungen mit einem digitalen Voltmeter zur Masse gemessen.

RECEPTEUR : En UHF, niveau d'entrée 1 mV mire de barres

- SECAM, Norm L, Blanc 100%. Par la prise Péritélévision, niveau d'entrée 1 Vcc, mire de barres . Couleur, contraste, lumière à mi-course, son minimum.

Programme affecté PR 01. Tensions continues relevées par rapport à la masse avec un

voltmètre numérique.

RECEPTOR : En UHF, nivel de entrada 1 mV, mira de barras :

- PAL, norma G, blanco 100%. Por la toma Peritelevision, nivel de entrada 1 Vpp mira de barra. Color, Contraste, luz a mitad de carrera, Sonido minimo.

Programa afectado PR 01. Tensiones continuas marcadas en relacion a la masa con un voltimetro digital.

MAIN

FRANÇAIS ESPAÑOLDEUTSCHENGLISH ITALIANO

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21

15 13

20 18 16 14 12

11 9

10 8

7 5 3 1

6 4 2

AUDIO "R" AUDIO "R" AUDIO "L"

NOTE :

... etc. identifies each

pcb module.

AUDIO "D" AUDIO "D" AUDIO "G"

AUDIO "BLEU"

AUDIO "G" MONO

"BLEU"

COMMUT. LENTE

"VERT"

"ROUGE"

COMMUT. RAPIDE

VIDEO

VIDEO SYNCHRO BLINDAGE PRISE

AUDIO "R" AUDIO "R" AUDIO "L"

AUDIO "BLAU"

AUDIO "L" MONO

"BLAU"

UMSCHALTUNG

"GRÜN"

"ROT"

AUSTASTUNG

VIDEO

VIDEO ODER

SYNCHRO

ABSCHIRMUNG DES STECKERS

AUDIO "D" AUDIO "D"

AUDIO "I"

AUDIO "AZUL"

AUDIO "I" MONO

AZUL

"CONMUTACION

LENTA"

"VERDE"

"ROJA"

"CONMUTACION

RAPIDA"

"CONMUTACION

RAPIDA"

VIDEO

VIDEO O SINCRO

BLINDAJE

DEL ENCHUFE

AUDIO "D" AUDIO "D" AUDIO "S"

AUDIO

"BLU"

AUDIO "S" MONO

BLU

"COMMUTAZIONE

LENTA"

"VERDE"

"ROSSO"

"COMMUTAZIONE

RAPIDA"

"COMMUTAZIONE

RAPIDA"

VIDEO

VIDEO O SINCRO

INVOLUCRO METAL-

LICO DELLA PRESA

AUDIO "L" MONO

"BLUE"

"GREEN" AV LINK AV LINK AV LINK AV LINK AV LINK

"GREEN"

"RED"

"ROUGE" "ROT" "ROJA""ROSSO""RED"

SLOW SWITCH

FAST SWITCH

VIDEO

VIDEO VIDEO VIDEOVIDEOVIDEO

PLUG SCREEN

BOX

VIDEO OR "SYNC"

FAST SWITCH

AUDIO "BLUE"

: OUTPUT - SORTIE - AUSGANG - USCITA - SALIDA •

: EARTH - MASSE - MASSE - MASSA - MASA

MAIN

NOTE :

... etc. repères des

platines constituant l'appareil.

MAIN

NOTA :

... etc. marcas de las

placas que constituyen el aparato.

MAIN

NOTA :

... ecc. sigla delle

piastre dell' apparecchio.

MAIN

HINWEIS :

... usw. Kennzeichnung der Platinen, aus denen das  Gerät zusammengesetzt ist.

: INPUT - ENTRÉE - EINGANG - ENTRATA - ENTRADA •

Do not disconnect modules when they are energized! Repairs on power supply section are to be carried out only with isolating transformer.

Ne pas retirer les modules lorsqu' ils sont sous tension. N'effectuer les travaux de maintenance sur la partie reliée au secteur (Switch Mode) qu'au travers d'un transformateur d'isolement.

Module nicht bei eingeschaltetem Gerät entfernen! Servicearbeiten am Netzteil nur unter Verwendung eines Regeltrenntrafos durchführen.

Non scollegare le piastre quando sono alimentate! Per le riparazioni sulla sezione alimentatore, utilizzare un trasformatore isolatore.

No desconectar los módulos cuando están activados. Las reparaciones en la sección de alimentación de energía deben ser ejecutadas solamente con un transformador de separación.

Page 3

DTH6300 First issue 03 / 05 3

SOMMAIRE

Page

CARACTERISTIQUES TECHNIQUES . . . . . . . . . . . . . . . . . . . . . . . .4

PREVENTION CONTRE LES DECHARGES ELECTRIQUE . . . . . .5 / 6

MANIPULATION DU BLOC OPTIQUE . . . . . . . . . . . . . . . . . . . . .7 / 8

SCHEMA D' INTERCONNEXION / REGLAGE . . . . . . . . . . . . . . . . .9

SCHEMA SYNOPTIQUE (VCR) . . . . . . . . . . . . . . . . . . . . . . . . . . .10

SCHEMA DES CIRCUITS D’ALIMENTATIONS . . . . . . . . . . . .11/14

SCHEMA DE LA PLATINE PRINCIPALE . . . . . . . . . . . . . . . .15 / 34

Page

SCHEMA DES CIRCUITS COMMANDES . . . . . . . . . . . . . . . .31/32*

SCHEMA SYNOPTIQUE (DVD) . . . . . . . . . . . . . . . . . . . . . . . .35 / 36

SCHEMA DE LA PLATINE PRINCIPALE . . . . . . . . . . . . . . . .37 / 44

CIRCUIT IMPRIME PLATINE ALIMANTATION . . . . . . . . . . . . . . .45

CIRCUIT IMPRIME PLATINE COMMANDES / AFFICHEUR . . . .46*

CIRCUIT IMPRIME PLATINE PRINCIPALE . . . . . . . . . . . . . . .47/52

REGLAGE MECANIQUE - DEMONTAGE / REMONTAGE . . . . .53/78

Page

TECHNICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

PREVENTION OF ELECTRO STATIC DISCHARGE . . . . . . . . . .5 / 6

HANLING THE OPTICAL PICKUP . . . . . . . . . . . . . . . . . . . . . . . .7 / 8

WIRING DIAGRAM / ADJUSMENTS . . . . . . . . . . . . . . . . . . . . . . . .9

SCHEMA SYNOPTIQUE (VCR) . . . . . . . . . . . . . . . . . . . . . . . . . . .10

POWER SUPPLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11/14

MAIN SCHEMATIC DIAGRAM (VCR ) . . . . . . . . . . . . . . . . . .15 / 34

Page

CONTROL SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . .31/32*

BLOCK DIAGRAM (DVD) . . . . . . . . . . . . . . . . . . . . . . . . . . . .35 / 34

MAIN SCHEMATIC DIAGRAM (DVD ) . . . . . . . . . . . . . . . . . .37 / 44

POWER SUPPLY P.C.B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45

KEYBOARD /DISPLAY /CLOCK . . . . . . . . . . . . . . . . . . . . . . . . . .46*

MAIN P.C.B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47 / 52

MECHANICAL ADJUSTMENT-DISASSEMBLY/ASSEMBLY . .53/78

SUMARIO

Página

DATOS TECNICOS ............................................................................4

PREVENCIÓN CONTRA DESCARGAS ELECTRO-STATICA ........5 / 6

MANEJO DEL OPTICO .................................................................7 / 8

ESQUEMA DE INTERCONEXIONES / AJUSTES............................9

SCHEMA SYNOPTIQUE (VCR) .......................................................10

ESQUEMA DE LOS CIRCUITOS DE ALIMENTACIÓN..............11/14

ESQUEMA DE LA PLATINA PRINCIPAL ...............................15 / 34

Página

ESQUEMA DE LOS CIRCUITOS MANDOS ............................31/32*

ESQUEMA DE BLOQUES (DVD).............................................35 / 36

ESQUEMA DE LA PLATINA PRINCIPAL................................37 / 44

PLATINA ALIMANTACIÓN .............................................................45

PLATINA MANDOS / INDICADOR / RELOJ..................................46*

PLATINA PRINCIPAL.................................................................47/52

AJUSTES MECANICOS - DESMONTAR/VOLVER A MONTAR .....53/78

SOMMARIO

Pagina

DATI TECNICI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

AZIONI PREVENTIVE CONTRO LE SCARICHE ELETTROSTATICHE 5 /6

MANEGGIAMENTO OTTICA PICKUP . . . . . . . . . . . . . . . . . . . . . .7 / 8

DIAGRAMMA DELLE INTERCONNESSIONI /REGOLAZIONI . . . . .9

SCHEMA A BLOCCHI (VCR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

ALIMENTAZIONE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11/14

SCHEMA DELLA PIASTRA PRINCIPALE . . . . . . . . . . . . . . .15 / 34

Pagina

SCHEMA DEI CIRCUITI TASTIERA . . . . . . . . . . . . . . . . . . . .31/32*

SCHEMA A BLOCCHI (DVD) . . . . . . . . . . . . . . . . . . . . . . . . .35 / 36

SCHEMA DELLA PIASTRA PRINCIPALE . . . . . . . . . . . . . . .37 / 44

PIASTRA DEI CIRCUITI DI ALIMENTAZIONE . . . . . . . . . . . . . . . . .45

PIASTRA TASTIERA / INDICATORE / OROLOGIO . . . . . . . . . . . .46*

PIASTRA PRINCIPALE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47/52

ISTRUZIONI PER LA MANUTENZIONE MECCANICA . . . . . . . .53/78

INHALT

Seite

TECHNISCHE DATEN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

VERMEIDUNG VON ELEKTROSTATISCHER ENTLADUNG (ESD)5 / 6

HANDHABUNG DER OPTISCHEN EINHEIT . . . . . . . . . . . . . . . .7 / 8

VERDRAHTUNGSPLAN / EINSTELLLUNGEN . . . . . . . . . . . . . . . .9

SCHEMA SYNOPTIQUE (VCR) . . . . . . . . . . . . . . . . . . . . . . . . . . .10

NETZTEIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11/14

SCHALTBILD HAUPTPLATINE . . . . . . . . . . . . . . . . . . . . . . . .15 / 34

Seite

SCHALTBILD BEDIENTEIL/ ANZEIGE . . . . . . . . . . . . . . . . . .31/32*

BLOCKSCHALBILD (DVD) . . . . . . . . . . . . . . . . . . . . . . . . . . .35 / 36

SCHALTBILD HAUPTPLATINE . . . . . . . . . . . . . . . . . . . . . . . .37 / 44

LEITERPLATTE NETZTEIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45

LEITERPLATTE BEDIENTEIL/ ANZEIGE . . . . . . . . . . . . . . . . . . .46*

GRUNDPLATTE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47/52

MECHANISCHE EINSTELLUNGEN-DEMONTAGE/MONTAGE . . .53/78

Some Models*

Page 4

DTH6300

4 First issue 03 / 05

TECHNICAL DATA - CARACTERISTIQUES TECHNIQUES TECHNISCHE DATEN - DATI TECNICI - DATOS TECNICOS

• THOMSON Multimedia reserves the right to change the specifications without notice

• Tous droits de modification des spécifications réservés.

• Änderungen der technischen Daten sind ohne Ankündigung möglich.

• Con riserva di modifica dei dati tecnici senza preavviso.

• Nos reservamos el derecho de modificar los datos técnicos sin previo aviso.

PLAYABLE DISK TYPE DVD

Video DVD+R/+RW/-R/-RW+VCD/S-VCD audio CD audio + most of CD-R/CD-RW

MODULATOR

Video (2) jpeg

System PLL I (DTH6300F) / - (DTH6300E)

DiviX "Home cinema certified" yes

Channel range 21-69 (DTH6300F) / - (DTH6300E)

Regional code 2

Auto channel select Yes (DTH6300F) / - (DTH6300E)

Disk sizes 8 + 12 cm

AUTO MODES

VIDEO DVD

Auto power on Yes

Output signal PAL / PAL 60 Hz / NTSC

Auto playback Yes

Digital to analog converter 10 Bit / 27 MHz

Auto rewind Yes

Progressive video processor Yes (DTH6300F) / - (DTH6300E)

VIDEO VCR

TIMER

Colour System Pal / Secam (DTH6300F / Pal (DTH6300E)

Timer capacity 7 events / 1 month

MESECAM Yes

Daily / weekly repeat Mo-Fr/Yes

NTSC playback (PB) on PAL TV Yes

Power back-up EEPROM

Yes (DTH6300F) / - (DTH6300E)

Heads (Video+Audio+FEH) 4+2

PDC decoder

VPS decoder

Yes

Tape speed SP / LP / SLP (NTSC)

Easy programming ShowView (DTH6300F) / Video Plus + (DTH6300E)

Still Picture Noiseless (SP) Slow Motion Noiseless (SP) Frame advance Noiseless (SP) Tracking Digital Auto

Instant recording Yes

Assemble Yes

CLOCK

16:9 identif. REC./PB Auto

System Quartz

AUDIO DVD

Clock setting Auto(TXT/UTC)

Digital to analog converter 96 kHz / 24 bits

Power back-up (min) 3 sec

Signal to Noise ratio 100 dB

DISPLAY

Dolby Digital 5.1 Passthrough

Graphical user interface Yes

DTS Passthrough

OSD langages GB,D,F,I,E,NL

MPEG 2 audio Passthrough

Front display technology LED

FRONT CONNECTORS

MP3 decoder built in Yes

RCA Audio IN 2

Virtual surround Yes

RCA video IN 1

Voice enhancing effect NA

AUDIO VCR

HIFI Stereo Yes

REAR CONNECTORS

Number of scart sockets 2 … of which Y/C 1

PLAYBACK FEATURES DVD

…of which RGB 1

Still picture Yes

Scart with RGB loop 1

Frame advance Yes

RCA video out 1

Repeat function DVD Tittle/Chapter/AB Repeat function CD Disk / track / Program

Digital audio out Coaxial & Optical YPrPb (component) RCA Yes

Program play Yes (CD/mp3)

REMOTE CONTROL

Random play Yes (CD/mp3)

Model Multiproduct (DTH6300F) / RCT311DA1(DTH6300E)

Dealers mode Yes

Type 3 in 1 : TH TV / TH VCR / TH DVD

Parental lock Yes

SUPPLIED ACCESSORIES

Zoom Yes

RCU battery 2 x AAA Power cable / Plug FIXED / CEE (DTH6300F) / UK fuse (DTH6300E)

Variable search speed Yes x 4 speed/SCAN/Slow

Scart cable Yes

Resume memory 1 disc

RCA A/V cable Yes

Introscan Yes (CD) Scene again Yes

IB languages (1) F/D/I/NL/GB (DTH6300F) / GB (DTH6300E)

jpeg photos playback Yes (Slideshow) jpeg combination playback jpeg & mp3

GENERAL DATA

Kodak Picture CD Playback Yes

Product size (W x H x D in mm) 430 x 79 x 255

TAPE ACCESS

Packaging size (W x H x D in mm) TBD

Counter Real time

Weight : Net / Gross (Kg) 4/ 5,4 EAN code 3244480148518 Power supply 230 V - 50 Hz Power consumption 21 W (DTH6300F) / 23W (DTH6300E) Standby Power Consumption <3 W (DTH6300F) / 6,3W (DTH6300E)

NOTE*

Auto Power / Rewind / Eject Yes

Most CD-R / CD-RWs Total compatibility not guaranteed Tuning system PLL Standard LL', BG, DKK'(DTH6300F) / BG,DKK' (DTH6300E) Programme Number 88 NICAM / FM Stereo Sound I / - (DTH6300F) // L,BG, DK/ BG, DK (DTH6300E) Auto installation Yes Auto sorting Yes

RECEPTION

FEATURES BENEFITS

Combines all features of a DVD player and HiFi VHS videorecorder Easy connection and upgrade to DVD in one compact unit Built-in mp3 decoder, CD-R, CD-RW & S-VCD playback Allows playback of DVD discs, CD audio and most CD-R / CD-RW* as well as listening to

your own MP3 CDs* & S-VCD discs

DivX playback (DivX®5, DivX®4, DivX®3 and DivX®VOD) "Home Theatre Certified" Plays videos and movies downloaded from internet.

Ready for future DivX formats

VPS and PDC function Don't miss the recording if the program starts late (on VPS and PDC channels) Showview For easy and quick recording thanks to the showview code

2 scarts with loop-through (among them 1 RGB) For an easier installation of your DVD / VCR with other Audio and Video equipment.

RGB to enhance picture quality transmitted to your TV

Front A-V connectors For easy recording from external equipment like camcorders

Page 5

DTH6300

First issue 03 / 05 5

Invisible laser radiation when open and interlock failed or defeated. Avoid direct exposure to beam.

Le rayon laser est invisible. Eviter l'exposition directe lors de la maintenance.

Bei geöffneter Schublade und Defekt der Sicherheitsvorrichtungen besteht die Gefahr unsichtbaren Laserlichts. Niemals direkt in den Laserstrahl sehen.

Il raggio laser è invisible. Evitare l'esposizione diretta durante la manutenzione.

El rayo laser es invisible. Evitar la exposición directa en el momento del mantenimiento.

DANGER :

ATTENTION :

VORSICHT BEI

REPARATUREN :

ATTENZIONE :

IMPORTANTE :

CLASS 2 LASER PRODUCT

APPAREIL A LASER DE CLASSE 2

LASER KLASSE 2

APPARECCHIO CON LASER DI CLASSE 2

APARATO CON LASER DE CLASE 2

IMPORTANT SAFETY NOTICE

There are special components used in this equipment which are imporant for safety. These part are marked by symbol on the schematic circuit diagrams and replacement part list. It is essential that these safety critical components are replaced with the manufacture’s specified parts to prevent electric shock, fire, or other hazards. do not attempt to modify the original design without permission of the manufacturer.

REMARQUES DE SECURITE IMPORTANTE

Il y a des composants spéciaux utilise dans cet appareil qui sont important pour la sécurité. Ces pièces sont repérées par un symbole sur les schémas de principes et la liste de pièces détachées. Il est essentiel que ces composants de sécurité soient remplacés par les pièces spécifiques du constructeur pour éviter les chocs électriques, feux ou autres risques. Ne tentez pas de modifier la conception originale sans autorisation du constructeur.

WICHTIGER SICHERHEITSHINWEIS

In diesem Gerät wurden sicherheitsrelevante Komponenten verwendet. Diese Teile sind im Schaltbild und in der Ersatzteilliste mit einem Symbol markiert. Es ist wichtig, dass diese kritischen Komponenten ausschließlich durch solche ersetzt werden, die den Spezifikationen des Herstellers entsprechen. Die Produkthaftung des Herstellers erlischt bei Einsatz von nicht den Spezifikationen entsprechenden Sicherheitsbauteilen und bei eigenmächtigen Schaltungsänderungen.

IMPORTANTE INFORMAZIONE DI SICUREZZA

Ci sono speciali componenti usati in questa apparecchiatura che sono importanti per la sicurezza. queste parti sono facilmente identificabili, sullo schema e sulla lista parti, da un apposito simbolo . E’ indispensabile che questi componenti di sicurezza, nel caso di alterazioni o guasti, vengano sostituiti con specifici ricambi originali per evitare shock elettrici, fuoco o altri rischi. Non modificare mai il circuito senza autorizzazione della casa costruttrice.

AVISO IMPORTANTE SOBRE SEGURIDAD

En este equipo se utilizan componentes especiales que son muy importantes para la seguridad. están marcados con el símbolo en los esquemas eléctricos y en las listas de repuestos. Es fundamental que estos componentes críticos de seguridad, sean reemplazados por las piezas originales indicadas por el fabricante para evitar los peligros de electrocución, de fuego, etc. y no modificar el diseño original sin autorización del fabricante.

EN Prevention of electro static discharge (esd) to Electrostatically Sensitive Devices (ESD)

Some semiconductor devices can be damaged easily by static electricity (integrated circuits, 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 component or semiconductor-equipped assembly, drain off any electrostatic charge on your body by touching a known earth ground or wear a 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 ESD devices, place the assembly on a conductive surface such as aluminum foil.

3. Use only a grounded-tip soldering iron to solder or unsolder ESD devices.

4. Use only an anti-static solder removal devices.

5. Do not use freon-propelled chemicals.

6. Do not remove a replacement ESD device from its protective package until immediately before your are ready to install it.

7. Immediately before removing the protective materials from the leads of a replacement ESD 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 ESD devices

FR Prévention des composants et sous-ensembles contre les ESD ( Décharge d'Electricité Statique )

Certains semi-conducteurs peuvent être facilement endommagés par l’électricité statique (les circuits intégrés et certains transistors à effet de champs, les composants semi-conducteurs de type chip ainsi que les diodes à émission laser équipant les lecteurs optiques ). Les précautions suivantes doivent être utilisées pour réduire l’incidence des dommages causés par l’électricité statique.

1. Immédiatement avant de manipuler tout composant semi-conducteur ou ensemble équipé de semi-conducteurs, éliminez toute charge électrostatique de votre corps en touchant une terre connue. Ou bien, mettez un bracelet antistatique, qui doit être retiré, pour des raisons de choc électrique, avant de mettre l’appareil sous tension.

2. Après démontage d’un ensemble électrique équipé d’éléments sensibles aux ESD, Placez l’ensemble sur une surface conductrice telle qu’une feuille d’aluminium.

3. N’utilisez qu’un fer à souder relier à la masse pour souder ou dessouder ces composants.

4. Pour dessouder, n’utilisez que du matériel antistatique

5. N’utilisez pas de produits chimiques à propulsion de fréon.

6. Ne retirez pas ces composants de leur emballage de protection jusqu’à ce que vous soyez prêt à l’installer.

7. Juste avant de retirer la protection des broches de ces composants, touchez la protection sur le châssis ou le circuit dans lequel le composant va être installé. ATTENTION : Assurez-vous que le châssis ou le circuit n’est pas sous tension, et observez toutes les autres précautions de sécurité.

8. Minimisez les déplacements corporels lorsque vous manipulez un de ces composants de remplacement déballé.

DE Vermeidung von Elektrostatischer Entladung (ESD)

Manche elektronische Komponenten wie Transistoren, Integrierte Schaltkreise oder Chipelemente können leicht durch ESD beschädigt oder zerstört werden. Die folgenden Richtlinien helfen Schäden durch ESD zu vermeiden.

1. Unmittelbar vor dem Hantieren Halbleitern oder Baugruppen mit Halbleitern leiten Sie die statische Aufladung Ihres Körpers durch Berühren einen geerdeten Gegenstandes ab. Beschaffen Sie sich ein leitendes Hansgelenkband. Dieses müssen Sie allerdings vor dem Einschalten des zu prüfenden Gerätes ablegen.

2. Nach dem Ausbau einer empfindlichen elektronischen Baugruppe legen Sie diese auf einen leitende Unterlage wie Aluminium-Folie um eine elektrostatische Entladung zu vermeiden.

3. Benutzen Sie für Lotarbeiten an empfindlichen Komponenten einen geerdeten Lötkolben.

4. Benutzen Sie antistatisches Entlötwergzeug.

5. Verwenden Sie keine Sprays, die Freon als Treibmittel enthalten. Diese können ausreichend elektrostatische Ladung erzeugen, um empfindliche Komponenten zu schädigen.

Entfernen Sie die Antistatik-Schutzverpackung (Alu-Folie, Leitgummi, Leitfolie, ..) von Komponenten und Baugruppen erst wenn Sie diese benötigen.

7. Unmittelbar vor dem Entfernen der Schutzverpackung führen Sie ein Potentialausgleich durch Berühren des Gerätes mit der Komponente/Baugruppe durch. ACHTUNG: Stellen Sie Sicher, Dass das Gerät nicht unter Spannung steht und beachten Sie alle einschlägigen Sicherheitsvorschriften.

8. Bewegen Sie sich beim Hantieren mit empfindlichen Komponenten/Bausteinen möglichst wenig, da die Reibung Ihrer Kleidung oder der Füße auf dem Bodenbelag elektrostatische Ladung erzeugen kann.

Azioni preventive contro le scariche elettrostatiche (esd) sui Dispositivi Sensibili Elettrostaticamente (ESD)

Alcuni semiconduttoripossono essere facilmente danneggiati da elettricità statica (circuiti integrati, alcuni transistor ad effetto di campo e componenti chip semiconduttori). Al fine di ridurre l’incidenza dei componenti danneggiati a causa di elettricità statica si dovrebbero osservare le seguenti precauzioni.

Immediatamente prima di maneggiare qualsiasi tipo di componente semiconduttore o di apparecchio che impiega semiconduttori, scaricare le possibili cariche elettrostatiche del proprio corpo toccando un punto sicuramente collegato a terra. In alternativa, indossare un apposito braccialetto antistatico che dovrebbe però essere tolto, per possibili potenziali shock, immediatamente prima di alimentare l’apparecchiatura sotto test.

2. Dopo il disimballo porre l’apparecchiatura equipaggiata con dispositivi ESD su una superficie conduttiva tipo foglio di alluminio.

3. Usare saldatori con punta a massa per saldare o dissaldare dispositivi ESD.

4. Usare solo saldatorI antistatici.

5. Non usare prodotti chimici tipo freon.

6. Rimuovere il dispositivo ESD dal suo imballo protettivo solo immediatamente prima del suo utilizzo.

7. Immediatamente prima della rimozione del materiale protettivo dai piedini del dispositivo ESD di ricambio, toccare con il materiale protettivo il telaio o la massa del circuito stampato dove il dispositivo deve essere inserito. ATTENZIONE : Assicurarsi che il circuito o il telaio non sia alimentato, e osservare tutte le altre precauzioni di sicurezza.

8. Limitare gli spostamenti quando si maneggia un dispositivo ESD disimballato.

ES Prevención contra descargas electro-státicas (esd) para los DISPOSITIVOS SENSIBLES electrostáticamente (ESD)

Algunos dispositivos semiconductores, pueden ser dañados fácilmente por la electricidad estática (los circuitos integrados, algunos transistores de Efecto de Campo y los semiconductores "chip"). Las siguientes técnicas pueden ser utilizadas para ayudar a reducir la destrucción de los componentes causada por la electricidad estática.

1. Inmediatamente antes de manejar cualquier componente semiconductor o conjunto equipado con semiconductores, elimine la carga electrostática de su cuerpo tocando alguna toma de tierra conocida o utilizar una correa conductora conectada a una toma de tierra que se pone en la muñeca la cual debe ser quitada (por razones de seguridad) antes de conectar la alimentación al equipo bajo prueba.

2. Después de quitar un conjunto equipado con componentes ESD, coloque el conjunto sobre una superficie conductora, como papel aluminio.

3. Utilizar únicamente soldadores con la punta conectada a la toma de tierra para soldar o desoldar componentes ESD.

4. Utilizar solamente soldadores antiestáticos para quitar componentes.

5. No utilizar productos químicos con gas freón como propelente.

6. No sacar de su embalaje protector el nuevo componente ESD hasta inmediatamente antes de estar todo preparado para montarlo.

7. Inmediatamente antes de quitar los materiales de protección de las patillas del componente, tocar el material protector al chasis del conjunto donde se vaya a montar el componente. CUIDADO : Asegúrese de que la alimentación no esté aplicada al chasis o circuito, y cumpla todas las precauciones de seguridad.

8. Maneje sin movimientos bruscos el componente ESD una vez desempaquetado.

Page 6

DTH6300

8 First issue 03 / 05

HANDLING THE OPTICAL PICKUP

The laser diode used in the optical pickup may break down due to potential differences caused by electricity produced by clothing or the human body, care should therefore be taken to prevent electrostatic discharge whilst repairing the optical pickup.

The following method is recommended.

1) Place a conductive sheet on the work bench (The black sheet used for wrapping repair parts.)

2) Place the set on the conductive sheet so that the chassis is grounded to the sheet.

3) Place your hands on the conductive sheet (doing this gives them the same ground as the sheet.

4) Remove the optical pickup block

5) Perform work on top of the conductive sheet. Be careful not to let your clothes or any other static sources to touch the unit.

* Grounding the Human Body, use an antistatic wrist

strap to discharge static electricity from your body.

* Grounding the work place, use either an antistatic matt

or a sheet of steel on the area where the optical pickup is to be placed and ground the matt/sheet.

6) Short the short terminal on the PCB, which is inside the Pickup Assembly, before deconnecting the flexible cable for replacing the Pickup. (The short terminal is shorted when the Pickup Assembly is being lifted or moved.)

7) After replacing the Pickup, open the short terminal on the PCB.

MANIPULATION DU BLOC OPTIQUE

La diode laser utilisée dans le bloc optique peut se détériorer à cause d’une différence de potentiel causé par l’électricité produite par les vêtements ou le corps humain, par conséquent des précautions doivent être prise pour éviter les décharges électrostatiques pendant la réparation du bloc optique.

Il est recommandé de suivre la méthode suivante.

1) Placez une feuille conductrice sur le banc de travail (la feuille noire utilisée pour envelopper les pièces détachées).

2) Placez l’ensemble sur la feuille conductrice pour que le châssis soit mis à la masse par la feuille.

3) Mettez vos mains sur la feuille conductrice (en faisant ceci, vous leur donnez la même masse que la feuille)

4) Retirez le bloc optique

5) Travaillez en haut de la feuille conductrice. Prenez soin de ne pas laisser vos vêtements ou autre source statique toucher le bloc optique.

* Mise à la terre du corps humain : utilisez un bracelet

antistatique pour décharger l’électricité statique de votre corps.

* Mise à la terre du poste de travail : placez soit un tapis

antistatique, soit une feuille d’acier sur le banc de travail où vous poserez le bloc optique après avoir relier le tapis ou la feuille à la masse.

6) Pour remplacer le bloc optique, soudez le court-circuit sur le circuit imprimé qui se trouve sur l’ensemble optique, avant de déconnecter le câble flexible (le court-circuit est soudé lorsque l’ensemble optique est levé ou déplacé).

7) Après le remplacement du bloc optique, dessoudez le court-circuit sur le circuit imprimé.

Fig. 1

Fig. 2

DE IT

HANDHABUNG DER OPTISCHEN EINHEIT

Die verwendete Laser-Diode kann unter Umständen zerstört werden, wenn sie mit statischer Spannung aufgeladene Teile in Berührung kommt . Deshalb ist unbedingt zu beachten, daß vor der Reparatur alle Teile potentialfrei sind.

Empfehlenswert ist folgende Methode.

1) Eine leitende Unterlage auf den Werktisch legen (über 1MOhm Widerstand geerdete Leitgummi-Matte, Metallplatte oder ggf. die schwarze Folie der Ersatzteilverpackung).

2) Das Gerät auf diese Fläche stellen, damit ein Potenzialausgleich stattfinden kann.

3) Bringen Sie Ihren Körper auf das gleiche Potenzial wie die Unterlage (z.B. mit Handgelenkband über 1 MOhm geerdet).

4) Jetzt kann das DVD-Laufwerk bzw. die optische Einheit ausgebaut werden .

5) Führen sie alle Arbeiten auf der Leitgummi-Matte aus.

6) Zum Schutz des Lasers verbinden vor dem Ausbau der optischen Einheit (Lösen der Flachbandleitung) die beiden Lötpunkte auf der Leiterplatte der optischen Einheit miteinander. Die Leiterplatte befindet sich in der optischen Einheit.

7) Nach dem Einbau der (neuen) optischen Einheit den Kurzschluß wieder beseitigen !

MANEGGIAMENTO OTTICA PICKUP

Il diodo laser usato nelle ottiche pickup si può danneggiare a causa di differenze di potenziale causate da elettricità prodotta da vestiti o dal corpo umano, particolari attenzioni devono essere prese, durante la riparazione di apparecchiature con pickup ottici, per prevenire scariche elettrostatiche.

Si raccomanda di seguire le seguenti indicazioni.

1) Mettere un foglio conduttivo sul banco di lavoro (tipo foglio nero utilizzato per avvolgere le parti di ricambio).

2) Posizionare l’apparecchiatura sul foglio conduttivo per collegare la massa del telaio al foglio conduttivo.

3) Toccare con le mani il foglio conduttivo per avere lo stesso potenziale di massa del foglio conduttivo.

4) Rimuovere l’assieme ottica pickup.

5) Lavorare sopra il foglio conduttivo. Evitare di far toccare i propri vestiti o qualsiasi altra sorgente statica all’apparecchiatura.

* Per scaricare a massa l’elettricità statica del proprio corpo

utilizzare l’apposito braccialetto antistatico.

* Per mettere a terra il proprio posto di lavoro utilizzare un

tappetino antistatico o un foglio di acciaio collegati a massa, sull’area dove deve essere sostituita l’ottica.

6) In caso di sostituzione del pick up, cortocircuitare prima gli appositi punti della piastrina dell’assieme pickup, poi scollegare il cavo di collegamento flessibile.

7) Aprire il cortocircuito dei terminali solo dopo la sostituzione del Pickup.

MANEJO DEL CONJUNTO OPTICO

El diodo láser utilizado en el lector óptico puede resultar averiado a causa de las diferencias de potencial eléctrico producidas por el roce con la ropa o con el cuerpo humano, también hay que tener cuidado de que no se produzcan descargas electrostáticas mientras se repara el lector óptico.

Se recomienda el siguiente método.

1) Colocar una hoja conductora en el banco de trabajo (Vale la hoja negra que se utiliza para envolver los repuestos).

2) Colocar el aparato en la hoja conductora de forma que el chasis haga contacto con la hoja.

3) Poner las manos sobre la hoja conductora (haciendo esto se da la misma toma de tierra que a la hoja).

4) Retirar el conjunto óptico.

5) Realice el trabajo encima de la hoja conductora. Tenga cuidado para no permitir que su ropa o cualquier otra fuente de electricidad estática pueda tocar a la unidad.

* Conecte a tierra el cuerpo humano, utilizando una

muñequera antiestática para descargar la electricidad estática del cuerpo.

* Conectar a tierra el lugar de trabajo, utilizando una

alfombrilla antiestática o una hoja de papel de aluminio en el área donde se coloque el lector óptico y conectándola a la toma de tierra.

6) Poner en cortocircuito los terminales de los diodos (soldaduras en la cinta del conjunto óptico) antes de desconectar el cable flexible para remplazar el lector óptico.

7) Después de cambiar el lector óptico, quitar los cortocircuitos anteriores.

Page 7

DTH6300 First issue 03 / 05 9

ELECTRICAL ADJUSTMENTS - REGLAGES ELECTRIQUES ELEKTRISCHE EINSTELLUNGEN - REGOLAZIONI ELETTRICHE AJUSTES ELECTRICOS

WIRING DIAGRAM - SCHEMA D’INTERCONNEXIONS - VERDRAHTUNGSPLAN DIAGRAMMA DELLE INTERCONNESSIONI - ESQUEMA DE INTERCONEXIONES

OVERALL WIRING DIAGRAM

DECK MDSMPS

BOARD

123456789

CF G

I-limit

5.2VA

PMC0 1

12VA(CAP)

CAP REV’H’

123456789

GND

MOT OR GND

CAP CT L

12VA(DRUM)

101112

LD IN

DFG/FG

101112

12345

GND

A.PB

A/E(-)

A/E(+)

CTL(-)

A.REC

P3D0 2

CTL(+ )

DRUM CT L

12345

P3D0 3

FUL L ERASE

123456789

24VA(28V A)

12PIN PPM0 1

123456789

101112

4VA

GND

14VA

33VA

5.3VA

101112

123456789

PMD01

RF_OUT

HFM_VCC

FROM P/UP

123456789

LD_DVD

MD_DVD

10111213141516171819202122

VCC

VREF

VR_DVD

GND_PD

10111213141516171819202122

FOCUS+

TRACKING-

MAIN PCB

Head switching point

Mode & Signal Test Point Description

• Adjustment Procedure

a) Insert the SP Test Tape and play.

6.5H(416us)

Note - Adjust the distance of X, ( See deck mechanism adjustment page 69 ) b) Connect the CH1 of the oscilloscope to the H/SW(TP) and CH2 to the Video Out for the VCR. c) Trigger the mixed Combo Video Signal of CH2 to the CH1 H/SW(TP), and then check the distance (time difference), which is from the selected A(B) Head point of the H/SW(TP) signal to the starting point of the vertical synchronized signal, to 6.5H ± 0.5H (412µs, 1H=63µs).

PB (SP)

Dual trace Oscilloscope

SCART PIN19

Video

H/SW

Composite

VIDEO

CH1 CH2

FOCUS-

SW_PDI C

TRACKING+

LD_C D

GND_LD

MD_CD

VR_CD

123456789

SPM -

SPM +

PMD02

FROM MD

123456789

LM -

FM -

GNDSWGND

LM +

FM +

OPEN

VCR PCB

H/SW

Composite

VIDEO

6.5H(416us)

• PG Adjustment Method

a-1) Payback the SP standard tape b-2) Press the “1” key on the Remote controller and the “PLAY” key on the Front Panel the same time, then it goes in to Tracking initial mode. c-3) Repeat the above step(No.b-2), then it finishes the PG adjusting automatically. "off" then "on" is displayed d-4) Stop the playback, then it goes out to PG adjusting mode after memory the PG data.

Page 8

DTH6300

10 First issue 03 / ,05

2fsc R524, R514, R518,

R516, R589, C577, C576, L501, Q504

LD(+) LD(-)

L/M CONTROL R525, R526

IC501

HD6432197A

BLOCK DIAGRAM - SCHEMA SYNOPTIQUE - BLOCKSCHALTBILD - SCHEMA A BLOCCHI ESQUEMA DE BLOQUES

Page 9

DTH6300

First issue 03 / 05 11

BLOCK DIAGRAMS

POWER(SMPS) BLOCK DIAGRAMS

BD101

T101

TRANS

R101

BR BL (BK)(WH)

C103

FUSE

(F101)

NOISE FILTER

BLOCK

(C101,L102,

C102)

PHOTO COUPLER

(IC102)

ERROR

AMP

(IC103)

SNUBBER

BLOCK (D101,C105 C106,R104)

DRIVE & S/W BLOCK

(IC101, D102, R105,

C104, C109 , C135)

Y-CAP

C111

Y-CAP

C110

FEED-BACK

BLOCK R112,R113, C133,R114.

R115.R116

R117)

< HSR OPTION> 24V S/W BLOCK

(Q153,R151,R152,

D122,Q154,R110, D116,R181,R182)

< HSR OPTION>

RECTIFIER&

SMOOTING BLOCK

(D106,C117,R130)

RECTIFIER&

SMOOTING BLOCK

(D110,C123,C163,

R133,L122,C126)

RECTIFIER&

SMOOTING BLOCK

(D118,D112,C129,

C131,L124,L125)

RECTIFIER&

SMOOTING BLOCK

(D111,C127,L123,

C128)

RECTIFIER&

SMOOTING BLOCK

(D113,C132,R119)

CAP VCC 13VA/24V

HSR’H ’

D117

D115

DRUM VCC

13VA

12VT

5.3VA

5.0V

3.3V

D111

2.5V

33VT

TIMER’H ’

12V REG BLOCK

(Q156,ZD103,C151,

R150,R153,C152)

8V REG BLOCK

(D114,IC151,R170,

C154)

5V S/W BLOCK

(Q150,C155,D121,

R157,R158,R159,R160

Q162,R164,R172,C161)

3.3V REG BLOCK

(IC152,C153,R156)

33VT S/W BLOCK (Q161,R154,R155

Q173,R174,R177)

5VT S/W BLOCK

(Q163,C162,R173,

R176,R175,Q164)

PWR CTL’H'

5.0VT

6578

BLOCK DIAGRAM - SCHEMA SYNOPTIQUE - BLOCKSCHALTBILD - SCHEMA A BLOCCHI - ESQUEMA DE BLOQUES

( SMPS )

Page 10

DTH6300

14 First issue 03 / 05

POWER SUPPLY - ALIMENTATION - NETZTEIL - ALIMENTAZIONE - ALIMENTACIÓN

SCHEMATIC DIAGRAM - SCHEMA DE PRINCIPE - SCHALTBILD - SCHEMA - ESQUEMA

POWE

315

(315)

T=20uS

600Vpp-H

100V

(351,5)

352

5,3 (5,3)

(26)

14 (13)

5,3

(5,3)

14,2

(13)

Note :

Power Supply primary circuit measurements.

- Use only ( ) connection point.

Achtung :

Bei Messungen im Primärnetzteil

- Primärnetzteilmasse verwenden ( ).

Cuidado :

Medida en el bloque de alimentacion

- Utilizar la masa del bloque de alimentacion ( ).

* According to Models

315

(315)

0,8

(0,5)

Attention :

Mesure dans la partie primaire de l'alimentation

- Utiliser la masse du bloc alimentation ( ).

Attenzione :

misure nell'alimentatore primario

- usare massa alimentazione primario ( ).

Part of board connected to mains supply. Partie du châssis reliée au secteur. Primärseite des Netzteils. Parte dello châssis collegata alla rete. Parte del chassis conectar a la red.

3,9

(4,2)

33,9

(30)

(5)

(4)

(30) = Standby

Safety Part When repairing, use original part only

Pièce de securité N'utilisez que les pièces d'origine

Sicherheitsbauteil Bei Ersatz nur Originalteil verwenden

Componenti di sicurezza Per la riparazione utilizzare solo componenti originali

Utilice solo piezas originales Pieza de seguridad

Use isolating mains transformer. Utiliser un transformateur isolateur du secteur. Einen Trenntrafo verwenden. Utilizar un transformador aislador de red. Utilizzare un transformatore per isolarvi dalla rete.

Page 11

DTH6300

First issue 03 / 05 15

POWER SUPPLY - ALIMENTATION - NETZTEIL - ALIMENTAZIONE - ALIMENTACIÓN

SCHEMATIC DIAGRAM - SCHEMA DE PRINCIPE - SCHALTBILD - SCHEMA - ESQUEMA

POWER(SMPS) CIRCUIT DIAGRAM 2

MAIN

13,4

28,3

33,9 33,7

33,1

13,9

5,3

4,4

13,4

11,9

12,3

5,2

5,3

4,4

Page 12

DTH6300

18 First issue 03 / 05

MAIN SCHEMATIC DIAGRAM - SCHEMA DE LA PLATINE PRINCIPALE - SCHALTBILD HAUPTPLATINE - SCHEMA DELLA PIASTRA PRINCIPALE- ESQUEMA DE LA PLATINA PRINCIPAL

SYSTEM CIRCUIT DIAGRAM

MAIN

5 5

WAVEFORM

Page 13

DTH6300

First issue 03 / 05 19

Y/C BLOCK DIAGRAM

MEASUREMENTS - MESURES - MESSUNGEN - MISURE ELABORAZIONE - MEDIDAS - TRATAMIENTO

(PB MODE)

84V.ENV

(REC MODE)

(To Drum )

LP REC

SP REC

V.H.SW

C.ROT AR Y

D ATA

CLOCK

C.SYNC

79 78

PB FM

AGC

PB FM EQ FM OEM

IC301

LA71750M

REC’H’

79 78 76 75 70 69 68 67 65 59 58 54 52

W/D

CLIP

W/D

CLIP

REC

FM EQ

IC301

LA71750M

Killer C-LP F ACC

ACCC LP F

EMPHA

DET AI L

ENH

V.H.SW

69 68 67

SUB LP F

MAI N

CONV

C.ROT AR Y

D ATA

CLOCK

C SYNC

Y-LP F FBC

YNR

Main Conv

MAI N

DE EMP

Y-LP F

YNR

V.OUT

BPF

ACC DET

MICOM

AGC

Main Conv

65 63 61

60dB AMP

Y/C MI X

KILL DEC

REC APC

V.OUT

1H/2H

DEL AY

COMP

AMP

2721

(MICOM)

S2 V.OUT

C-Delay (1H/2H )

CCD

LP F

CNC

2521

V.IN4

FRONT

V.IN3

DEC

Y-DEL AY

VX0 2 VX0 2

2928

4.43MHz

S1 V.OUT

Y-Delay

50 V.IN2 S1

V.IN1 TUNER

CLK-IN

SYNC IN

IC201

LA70100M

18 14

29 16

IC201 LA70100M

212

EEPIN PB REC EEPIN PB REC

Q301 BASE 0.01 V 0.013 V 0.79 V

EMITER 0.003 V 0.004 V 0.005 V

COLECTOR

4.83 V 4.82 V 1.02 V Q302 BASE 4.85 V 4.18 V 4.75 V

EMITER 0.002 V 4.85 V 4.75 V

COLECTOR

(-)2.79 V 4.8 V (-)25.5 V Q303 BASE (-)2.76 V 0.7 V (-)25.6 V

EMITER (-)0.8 V 0.007 V (-)19.13 V

COLECTOR

0.002 V 0.012 V 0.004 V Q304 BASE (-)2.62 V 0.72 V (-)25.4 V

EMITER 0.002 V 0.002 V (-)19.4 V

COLECTOR

0.002 V 0.004 V 0.004 V Q305 BASE 1.71 V 1.41 V 1.7 V

EMITER 2.41 V 2.1 V 2.39 V

COLECTOR

0.003 V 0.004 V 0.005 V Q309 BASE 2.18 V 2.01 V 2.33 V

EMITER 2.87 V 2.7V 3V

COLECTOR

0.012 V 0.005 V 0.012 V Q501 BASE 0.69 V 0.69 V 0.69 V

EMITER 0.002 V 0.003 V 0.003 V

COLECTOR

0.02 V 0.012 V 0.023 V Q502 BASE 0.31 V 0.38 V 0.33 V

EMITER 0.004 V 0.004 V 0.004 V

COLECTOR

2.65 V 1.93 V 2.4 V Q504 BASE 0.59 V 0.51 V 0.50 V

EMITER 0.03 V 0.03 V 0.03 V

COLECTOR

3.78 V 3.75 V 3.71 V Q5S1 BASE 0.006 V 0.005 V 0.003 V

EMITER 1.77 V 1.8 V 1.89 V

COLECTOR

2.41 V 2.1 V 2.4 V Q515 BASE 4.94 V 0.5~4.3 V 0.4~4.9 V

EMITER 0.002 V 0.003 V 0.005 V

COLECTOR

0.02 V 0.2~3.5 V 0.4~4.9 V Q514 BASE 4.96 V 0.8~4.2 V 0.2~4.3 V

EMITER 0.002 V 0.002 V 0.003 V

COLECTOR

0.02 V 0.01~4.8V 0.011 V Q7S1 BASE 0.007 V 0.007 V 0.008 V

EMITER 0.001 V 0.001 V 0.001 V

COLECTOR

3.7

3.5 V0.057

V Q801 BASE 0.7 V (-)0.1 V 0.01 V

EMITER 0.001 V 0.003 V 0.001 V

0.004V 0.006 V

Q802

BASE 0.7 V (-)0.12 V 0.7 V

EMITER 0.001 V 0.001 V 0.001 V

COLECTOR

0.004 V0.02 V0.005

Q804

BASE 1.81 V 2.5 V 1.79 V

EMITER 2.5 V 3.20V 2.48 V

COLECTOR

0.002V 0V0V

Q901

BASE 0.005 V 0.005 V 0.006 V

EMITER 0.003 V 2.04 V 1.9 V

COLECTOR

0.003 V 0.004 V 0.005 V

Q902

BASE (-)1.64 V (-)1.69 V (-)1.79 V

EMITER 0.003 V 0.004 V 0.004 V

COLECTOR

0.004 V 0.004 V 0.005 V

Q903

BASE (-)1.74 V (-)1.63 V (-)1.8 V

EMITER 0.003 V 0.003 V 0.005 V

COLECTOR

0.003 V 0.004 V 0.005 V

Page 14

DTH6300

22 First issue 03 / 05

V. HS W ( IC501 Pin 105) 1V/10ms REC/PB MODE

DV.SYNC ( IC501 Pin 109) 1V/100µs QUE/REV MODE

CTL(+) ( IC501 Pin 3) 1V/10ms

CTL(-) ( IC501 Pin 4) 1V/10ms

DPG/DFG ( IC501 Pin 103,104) 1V/10ms REC/PB MODE

CFG ( IC501 Pin 9) 1V/10ms

V. IN ( IC501 Pin 17) 500mv/20µs

V. OU T ( IC501 Pin 19) 500mv/20µs EE/PB MODE

C.SYNC ( IC501 Pin 111) 1V/100µs EE/PB MODE

MEASUREMENTS - MESURES - MESSUNGEN - MISURE ELABORAZIONE - MEDIDAS - TRATAMIENTO ( VCR )

BLOCK DIAGRAM - SCHEMA SYNOPTIQUE - BLOCKSCHALTBILD - SCHEMA A BLOCCHI ESQUEMA DE BLOQUES

Hi-Fi BLOCK DIAGRAM

( IC301 Pin 75 ) PB mode PB / REC mode REC mode

500mv PP

( IC301 Pin 3) REC mode PB mode PB mode

2,0 V pp

( IC301 Pin 68 ) PB / REC mode REC mode PB mode

5,0 V pp

( IC301 Pins 48, 50, 52 54, 56 )

Video in 1,0V pp

( IC301 Pin 65 ) PB mode

2,02 V ppp

( IC301 Pin 69 ) PB / REC mode

5,0 V pp

( IC301 Pin 67)

4,0 V pp

( IC301 Pin 43 )

400m V pp

( IC301 Pin 21 )

340m V pp

( IC301 Pin 100 )

1,1 V pp

( IC301 Pin 28 )

400m V pp

( IC301 Pin 25 )

300m V pp

BLOCK

VIDEO INPUT

DVD/R V.IN

OSD V.IN

128

A.OUT

10 22

To JACK

IC802

A.OUT

(To Tu)

MODULA TO R

DVD A.IN ’R ’

DVD A.IN ’L’

AUDIO INPUT BLOCK

SCA RT 2

( IC301 Pin 29 ) PB mode

400mv PP

( IC301 Pin 70 ) PB mode

3,6V pp

Hi-Fi/

REC

Hi-Fi PB ’A’

Hi-Fi REC

36 35

Hi-Fi PB ’B’

A.OUT ’L’

A.OUT ’R ’

EU2.A.OUT.L

EU2.A.OUT.R

21 22

IC801

Tu A.IN ’L ’

BLOCK

AUDIO INPUT

Tu A.IN ’R ’

EU1 A.IN ’L ’

DVD A.IN ’L ’

EU1 A.IN ’R ’

DVD A.IN ’R ’

AV2 A.IN ’L ’

EU2 A.IN ’L ’

AV2 A.IN ’R ’

EU2 A.IN ’R ’

OUT(T o AVCP)

NORMAL AUDIO

IN(From AVCP)

NORMAL AUDIO

Page 15

DTH6300

First issue 03 / 05 23

MAIN SCHEMATIC DIAGRAM - SCHEMA DE LA PLATINE PRINCIPALE - SCHALTBILD HAUPTPLATINE - SCHEMA DELLA PIASTRA PRINCIPALE- ESQUEMA DE LA PLATINA PRINCIPAL

A/V CIRCUIT DIAGRAM

MAIN

WAVEFORM

PB Y+ C

PB Y

PB C

PB SECAM COLOR

REC AUDI O

PB AUDIO(MONO)

REC Y+ C

REC Y

REC C REC SECAM COLOR

Page 16

DTH6300

26 First issue 03 / 05

MAIN SCHEMATIC DIAGRAM - SCHEMA DE LA PLATINE PRINCIPALE - SCHALTBILD HAUPTPLATINE - SCHEMA DELLA PIASTRA PRINCIPALE- ESQUEMA DE LA PLATINA PRINCIPAL

MAIN Hi-Fi CIRCUIT DIAGRAM

PB REC

Page 17

DTH6300

First issue 03 / 05 27

MAIN SCHEMATIC DIAGRAM - SCHEMA DE LA PLATINE PRINCIPALE - SCHALTBILD HAUPTPLATINE - SCHEMA DELLA PIASTRA PRINCIPALE- ESQUEMA DE LA PLATINA PRINCIPAL

SCART (JACK) CIRCUIT DIAGRAM

MAIN

Page 18

DTH6300

30 First issue 03 / 05

MAIN SCHEMATIC DIAGRAM - SCHEMA DE LA PLATINE PRINCIPALE - SCHALTBILD HAUPTPLATINE - SCHEMA DELLA PIASTRA PRINCIPALE- ESQUEMA DE LA PLATINA PRINCIPAL

TU/IF, NICAM & A2 CIRCUIT DIAGRAM

MAIN

EE MODE(VIDEO) TU MODE (AUDIO)

Page 19

DTH6300

First issue 03 / 05 31

MAIN SCHEMATIC DIAGRAM - SCHEMA DE LA PLATINE PRINCIPALE - SCHALTBILD HAUPTPLATINE - SCHEMA DELLA PIASTRA PRINCIPALE- ESQUEMA DE LA PLATINA PRINCIPAL

Some Models*

KEYBOARD

TIMER CIRCUIT DIAGRAM*

Page 20

DTH6300

34 First issue 03 / 05

MEASUREMENTS - MESURES - MESSUNGEN - MISURE ELABORAZIONE - MEDIDAS - TRATAMIENTO ( VCR )

CIRCUIT VOLTAGE CHART

MODE PIN NO .

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

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

EE PB REC

IC201

2.36 V

2.4 V

3.5 V

2.43 V

0.002 V

0.4 V

0.003 V

2.87 V

2.36 V

3.16 V

2.3 V

2.98 V

3.2 V

0.15 V

0.124 V

2.23 V

1.84 V

4.71 V

4.72 V

2.37 V

0.182 V

0.46 V

1.95 V

3 V 4 V

3 V

2.35 V

3.49 V

2.41 V

0.005 V

3.7 V

0.003 V

2.85 V

2.35V

3.13 V

1.7 V 4 V

2.3 V

1.78 V

3.2 V

3.86 V

3.38 V

2.23 V

3.3 V

2.34 V

0.002 V

4.69 V

2.26 V

2.25 V

2.86 V

0.187 V

0.62 V

1.94 V

IC301

4.8 V

0.11 V

2.16 V

0.69 V

2.15 V

2.16 V

2.15 V

2.14 V

2.16 V

2.23 V

1.56 V

2.14 V

0.022 V

2.14 V

4.85 V

2.14 V

4.8 V

3.88 V

2.31 V

3.2 V

3 V

4.84 V

0.014 V

2.16 V

0.63 V

2.15 V

2.14 V

2.16 V

2.27 V

0.002 V

2.14 V

0.022 V

2.14 V

0.146 V

2.14 V

4.86 V

3.92 V

0.003 V

1.68 V

2.62 V

2.55 V

2.32 V

2.4 V

3.5 V

2.38 V

0.006 V

0.39 V

0.003 V

2.81 V

2.32 V 3 V

3.03 V 4 V

2.25 V

2.93 V

3.2 V

0.017 V

0.127 V

2.23 V

3.3 V

2.35 V

0.007 V

4.64 V

4.63 V

2.37 V

2.36 V 3 V

0.182 V

0.85 V

1.91 V

0.99 V

0.81 V

2.03 V

1.73 V

2.26 V

2.06 V

2.1 V

2.73 V

2.66 V

2.8 V

2.0 V

0.095 V

2.05 V

2.08 V

4.68 V

2.09 V

4.73 V

2.72 V

0.006 V

3.02 V

3.2 V

MODE

PIN NO .

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 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78

EE PB REC

4.85 V

0.121 V

1.65 V

2.16 V

3.75 V

2.43 V

0.002 V

4.76 V

4.68 V

2.88 V

0.061 V

3.02 V

3.5 V

1.7 V

8.65 V

0.002 V

4.8 V

2.4 V

13.8 mV

2.5 V

2.6 V

4.14 V

3.3 V

2.97 V

1.93 V

0.002 V

1.93 V

2.33 V

1.93 V

5.14 V

2.24 V

1.95 V

2.9 V

1.47 V

1.8 V

0.087 V

1.8 V

0.002 V

1.71 V

0.002 V

0.005 V

4.8 V

4.7 V

7.75 V

5.55 V

4.84 V

2.21 V

2.45 V

2.38 V

2.4 V

1.58 V

2.44 V

2 V

3 V

4.85 V

3.4 V

1.25 V

2.1 V

3.7 V

2.46 V

0.002 V

4.58 V

2.86 V

0.06 V

2.34 V

2.84 V

1.76V

2.05 V

8.6 V

0.003 V

4.8 V

2.67 V

3.86 V

2.52 V

2.78 V

4.14 V

3.09 V

2.93 V

1.92 V

0.003 V

1.93 V

2.33 V

1.92 V

5.14 V

2.57 V

2.28 V

2.55 V

2.93 V

1.54 V

2.44 V

0.09 V

2.55 V

0.003 V

0.002 V

0.003 V

0.07 V

4.8 V

4.7 V

2.55 V

0.008 V

4.8 V

2.2 V

2.6 V

0.72 V

0.81 V

1.6 V

3.35 V

4.75 V

0.19 V

1.6 V

2.14 V

3.66 V

2.34 V

0.005 V

4.72 V

4.71 V

2.8 V

0.061 V

2.99 V

3.4 V

1.61 V

1.94 V

8.38 V

0.006 V

4.68 V

2.17 V

0.03 V

2.55 V

2.64 V

4.14 V

3.30 V

3.69 V

1.92 V

0.005 V

1.92 V

2.34 V

1.92 V

5.13 V

2.22 V

0.006 V

3.01 V

2.92 V

1.48 V

1.79 V

0.088 V

1.78 V

0.006 V

1.69 V

0.006 V

0.44 V

4.78 V

4.7 V

5.55 V

0.008 V

4.72 V

2.24 V

2.43 V

2.38 V

2.39 V

1.48 V

2.33 V

MODE

PIN NO.

79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99

100

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

EE PB REC

1.73 V

0.98 V

1.1 V

0.003 V

1.65 V

0.258 V

0.002 V

0.251 V

0.77 V

4.85 V

2.1 mV

1.7 V

0.002 V

2.16 V

2.16V

2.16 V

1.67 V

0.98 V

1.13 V

0.004 V

1.03 V

2.5 V

0.003 V

0.014 V

0.78 V

4.83 V

0.004 V

1.72 V

1.71 V

0.005 V

2.16 V

IC5F1

2.33 V

4.98 V

4.96 V

4.89 V

0.64 V

0.73 V

0.72 V

1.83 V

0.73 V

1.26 V

1.65 V

1.58 V

4.89 V

0.002 V

1.75 V

1.7 V

1.78 V

1.73 V

0.002 V

5 V

1 V

2.31 V

4.9 V 5 V

4.9 V

4.85 V

0.59 V

0.61 V

0.93 V

0.92 V

0.63 V

1.84 V

0.75 V

1.22 V

1.23 V

1.63 V

1.58 V

4.8 V

0.003 V

1.63 V

1.7 V

1.71 V

1.6 V

0.003 V

IC751

5.1 V

1.5 V

0.002 V

2.5 V

2.44 V

1.84 V

5.1 V

1.5 V

0.003 V

2.46 V

2. 44 V

1.89 V

2.51 V

4.46 V

1.15 V

0.006 V

1.41 V

0.014 V

1.38 V

1.98 V

0.78 V

0.77 V

4.74 V

0.006 V

3.94 V

3.93 V

3.92 V

3.94 V

0.006 V

2.21 V

2.25 V

2.31 V

2.3 V

4.9 V 5 V

4.9 V

4.8 V

0.6 V

0.96 V

0.91 V

0.92 V

1.8 V

0.72 V

1.2 V

1.1 V

1.54 V

1.42 V

4.8 V

0.003 V

1.5 V

1.41 V

0.003 V

5.08 V

1.51 V

1.5 V

0.003 V

2.46 V

2.43 V

2.06 V

MODE

PIN NO.

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

9 10 11 12 13 14 15 16 17

EE PB REC

1.86 V

0.002 V

5.12 V

1.75V

1.77 V

1.75 V

0.003 V

1.88 V

0.002 V

0.05 V

0.002 V

2.78 V

0.002 V

4.06 V

0.003 V

2.77 V

0.002 V

2.76 V

2.59 V

2.35 V

0.003 V

4.8 V

4.7 V

5 V

5.1 V

0.004 V

0.003 V

5.12 V

4.75 V

0.003 V

1.58 V

0.005 V

0.003 V

0.051 V

0.05 V

0.003 V

2.77 V

0.003 V

5.09 V

4.08 V

0.003 V

2.76 V

0.002 V

0.003 V

2.75 V

2.59 V

2.35 V

0.003 V

IC501

0.002 V

2.56 V

2.64 V

2.54 V

0.064 V

5.13 V

1.69 V

2.32 V

0.48 V

1.28 V

1.84 V

2.32 V

0.002 V

2.55 V

2.56 V

2.63 V

2.53 V

2.27 V

5.12 V

1.68 V

1.7 V

0.08 V

1.29 V

1.83 V

4.8 V

2.6 V

2.6 V 5 V

1.5 V

1.5 V 5 V

5.1 V

1.9 V

1.7 V 2 V

3 V

0.004 V

0.003 V

5.11 V

4.8 V

4.7 V

2.59 V

2.6 V 5 V

2.06 V 2 V 5 V

0.003 V 2 V

5.11 V

0.004 V

0.005 V

0.003 V

0.051 V

0.05 V

0.005 V

0.003 V

2.76 V

0.005 V

5.08 V

4.06 V

0.003 V

2.76 V

0.002 V

2.75 V

2.6 V

2.35 V

0.003 V

0.002 V

2.55 V

2.9 V 2 V

2.55 V

2.6 V

2.52 V

2.26 V

5.11 V

1.66 V

1.67 V

2.3 V

0.53 V

1.36 V 1,8 V

2.26 V

MODE

PIN NO .

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 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72

EE PB REC

4.7 V

2.19 V

0.01 V

2.2 V

2.32 V

0.01 V

0.3 V

0.08 V

5.14 V

4.2 V

5.13 V

0.004 V

0.002 V

0.18 V

1.37 V

5.14 V

4.74 V

2.45 V 5 V

2.28 V

0.003 V

4.76 V

0.003 V

(-)0.001 V

0.003 V

5.14 V

5.1 V

4.38 V

0.031 V

0.003 V

5.1 V

0.002 V

0.003 V

4.8 V

4.7 V

4.7 V 5 V

1.8 V

5.1 V

1.78 V

5.1 V

0.004 V

0.001 V

5.14 V

0.028 V

4,7 V

3 V

0.009 V

2.2 V

2.3 V

0.009 V

2.84 V

3.4 V

5.13 V

4.16 v

5.13 V

0.002 V

0.18 V

1.3 V

5.13 V

4.73 V

4.75 V

4.9 V

0.003 V

1.55 V

0.003 V

4.75 V

0.003 V

(-)0.001 V

0.003 V

0.003 V 0~5 V

0.003 V

0.03 V

5.06 V

0.003 V

5 V

5.13 V 5,1 V

0.002 V

0.004 V

4.8 V

4.7 V

5 V 5 V

1.3 V

5 V

5.1 V

4.4 V

5.1 V

0.001 V

0.028 V

4.6 V

2.13 V

0.01 V

2.16 V

2.26 V

0.01 V

0.012 V

0.068 V

5.12 V

3.93 V

5.11 V

0.003 V

0.002 V

0.18 V

1.42 V

5.1 V

4.7 V

2.33V

4.96 V

1.42 V

0.004 V

4.73 V

0.004 V

(-)0.001 V

0.004 V 5 V

0.004 V

0.005~5 V

0.004 V

0.035 V

0.038 V

0.004 V 5 V

5.11 V

5.1 V

0.002 V

0.004 V

4.8 V

4.9 V 5 V 5 V

1.68 V 5 V

1.66 V

5.08 V

0.005 V

5.12 V

0.001 V

0.029 V

MODE

PIN NO .

73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98

99 100 101 102 103 104 105 106 107 108 109 110 111 112

1 2 3 4 5 6 7 8

9 10 11 12 13 14

EE PB REC

5 V

0.001 V

1.5 V

1.7 V

5.1 V

2.5 V

0.001 V

2.53 V

3.2 V

5.12 V

0.172 V

0.004 V

0.019 V

2.55 V

5.11 V

5.12 V

0.005 V

4.38 V

0.005 V

5.11 V

0.005 V

5.11 V

0.005 V

1.51 V

0.005 V

0.099 V

5.11 V

0.005 V

0.049 V

0.002 V

0.48 V

5.12 V

5.1 V

0.001 V

1.93 V

2.02 V

5.1 V

2.51 V

0.002 V

2.5 V

3.2 V

5.1 V

2.68 V

2.4 V

3.4 V

2.55 V

3.1 V

4.95 V

4.97 V 5 V

5.1 V

0.008~0.05 V

0.005 V

0.05 V

0.005 V

5.1 V

5.3 V

2.55 V

0.005 V

2.6 V

0.006 V

1.36 V

2.55 V

2.54 V

2.75 V

2.81 V

50.6 V

0.002 V

0.6 V

5.11 V

IC801

3.8 V

0.054 V

3.87 V

0.008 V

3.81 V

3.82 V

3.8 V

0.003 V

5.04 V

0.002 V

1.48 V

1.44 V

5.08 V

2.52 V

0.002 V

2.5 V

3.19 V

5.1 V

2.55 V

2.69 V

3.44 V

2.56 V

2.29 V

4.9 V

4.98 V

5.09 V

0.006 V

0.013 V

0.012 V

0.006 V

5.09 V

0.006 V

2.52 V

0.006 V

1.31 V

0.006 V

1.38 V

1.36 V

2.53 V

2.75 V

2.79 V

0.05 V

0.002 V

0.55 V

5.1 V

3.82 V

0.048 V

3.99 V

0.011 V

MODE

PIN NO .

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

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

EE PB REC

0.008 V

4.58 V

3.82 V

3.86 V

3.87 V

0.76 V

0.001 V

3.84 V

3.86 V

0.77 V

3.87 V

3.86 V

11.84 V

0.64 V

0.005 V

0.002 V

0.005 V

0.078 V

6 V 6 V 7 V 6 V 6 V

5 V

4.7 V

4.8 V

0.006 V

6.07 V

6.06 V

6.07 V

4.57 V

3.82 V

3.84 V

3.9 V

0.003 V

3.83 V

3.86 V

0.76V

3.87 V

3.86 V

11.76 V

0.44 V

0.62 V

0.63 V

0.008 V

0.005 V

5.07 V

0.92 V

4.7 V

4.8 V

3.3 V

IC802

3 V

2.93 V

11.8 V

2.74 V

11.8 V

2.74 V

11.23 V

0.008 V

5.54 V

0.008 V

0.002 V

(-)0.001 V

5.54 V

5.5V

5.6 V

5.5 V 5 V

5.5 V

5.6 V

11.76 V

2.74 V

11.75 V

2.75 V

5.5 V

5.56 V

5.5 V

0.006 V

5.5 V

11.15 V

5.5 V

0.01 V

5.5 V

0.009 V

5.5 V

0.003 V

0.005 V

0.001 V

5.5 V

5.59 V

5.51 V

5.5 V

0.01 V

6.07 V

6.08 V

0.11 V

0.028V

6.07 V

5.9 V

3.82 V

3.86 V

3.87 V

0.76 V

0.005 V

3.83 V

3.86 V

0.76 V

3.86 V

3.87 V

3.86 V

11.77 V

4.3 V

4.28 V

4.32 V

0.006 V

5.05 V

0.92 V

4.7 V

4.8 V

0.068 V

3.05 V

11.76 V

2.74 V

11.76 V

2.75 V

5.5 V

5.57 V

5.49 V

4.97 V

5.5 V

11.16 V

5.5 V

0.009 V

5.5 V

0.009 V

5.51 V

0.005 V

0.004 V

0.001 V

5.51 V

5.59 V

5.52 V

5.5 V

MODE

PIN NO.

25 26 27 28 29 30 31 32 33 34

EE PB REC

5.6 V

5.54 V

4.16 V

1.46 V

2.1 V

1.35 V

4.7 V

4.8 V

(-) 0.002 V

5.58 V

5.5 V

4.32 V

1.46 V

1.99 V

1.35 V

4.7 V

4.8 V

0.001 V

5.59 V

5.5 V

4.51 V

1.46 V

2.07 V

1.35 V

4.7 V

4.8 V

0.000 V

Page 21

DTH6300

First issue 03 / 05 35

BLOCK DIAGRAM - SCHEMA SYNOPTIQUE - BLOCKSCHALTBILD - SCHEMA A BLOCCHI - ESQUEMA DE BLOQUES

DVD PRINCIPAL

Overall Block Diagram

5V/8V

SPINDLE

MOTOR

(FEEDING)

LOAD[+,-]

SLED

MOTOR

SL ED[+,-]

DISC

SP INDLE[+,-]

FOCUS[+,-]

PICK

Pick-up

TRACK[+,-]

DV D : A,B,C,D,RF0 CD : A, B,C,D, E,F,RF0 CDMDI,DVDMDI

CDLD,DVDLD,SVREF21

XSFGN,XSFGP HOMESW INSW,OUTS W

CD_D VD, VR_CD,VR_DVD

OPU_SEL

CD_D VD_CT

VD33 D

VD18/VD33

IC602

MX29LV160T

2/4M

16/32BIT

FLASH ROM

19]

ROMAD[0:

ROMRD

ROMWR

ROMDAT A[0:7]

VD33 D

MA[00:11 ]

DMCL K

DQM

CA SJ RA SJ

IC601

MTK MT1389

CS J BA 0 BA 1

WE J

IC603

16BIT

4BanK

SDRAM

RF+

MD[00:15]

CN603 RS232

Download

RS 232_R XD

IIC/VFD/ DA C_ SCK

IIC/VFD/ DA C_TX D

BCLK LRCL K DA CCLK

SER3,DAC_ML0

VD33D

IC606

S524A40X21

EEPROM

VD33D/5V

IC401

CS4392

2DAC

3V3M

DAC_RST

IC201

IP4504A

Motor Drive

AC 90V~240V

50HZ/60Hz

OPEN,C LO SE ,SLE GP ,SPINDLE,FOC US ,TRACK, SVREF

DR VS B

VF + VF -

-27V A

5.2V A 5V

POWER

BOARD

12V

3.3V-M1

3.3V

3.3V- M 8V

+12V VD18

VD33,VD33D

3V3M

5.3VA

LED501

CLK DISPLAY

PWRCTL

5.2VA

M-RESET

VFD_RXD

IC501

KEY Input

5.2VA

74HCT244

S_ REQ

IC607

6MHz

M_REQ

27MHz

VIDE O_SW

IC505

RESET IC

RC601

R/C

TRIGGER

MPEG IC

D2_T [1:3] SCART_16:9 RGB_SEL

JACK

IC901

MM162 3XFBE

VIDEO BUFFER

CVBS

R/Pr G/ Y

B/Pb

YC_MIX

Y C

TV_D AC[0:3]

IECDAOUT

COAXIAL

SPDIF

RS 232_TXD

L/R

+12V

IC602

MC4580

OP-AMP

L/R

Page 22

DTH6300

38 First issue 03 / 05

MAIN SCHEMATIC DIAGRAM - SCHEMA DE LA PLATINE PRINCIPALE - SCHALTBILD HAUPTPLATINE - SCHEMA DELLA PIASTRA PRINCIPALE- ESQUEMA DE LA PLATINA PRINCIPAL

DVD PART

MAIN SERVO

Page 23

DTH6300

First issue 03 / 05 39

MAIN SCHEMATIC DIAGRAM - SCHEMA DE LA PLATINE PRINCIPALE - SCHALTBILD HAUPTPLATINE - SCHEMA DELLA PIASTRA PRINCIPALE- ESQUEMA DE LA PLATINA PRINCIPAL

DVD PART

MAIN DVD AUDIO

Page 24

DTH6300

42 First issue 03 / 05

MAIN

1. SYSTEM CIRCUIT DIAGRAM

MAIN SCHEMATIC DIAGRAM - SCHEMA DE LA PLATINE PRINCIPALE - SCHALTBILD HAUPTPLATINE - SCHEMA DELLA PIASTRA PRINCIPALE- ESQUEMA DE LA PLATINA PRINCIPAL

DVD PART

Page 25

DTH6300

First issue 03 / 05 43

CIRCUIT VOLTAGE CHART

STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY

MODE

PIN NO .

2 2.54 2.3 3 2.55 2.3 4 2.53 2.3 5 2.56 2.35 6 2.54 2.43 7 2.56 2.42 8 0.001 0.001

9 1.39 1.38 10 3.5 3.37 11 0.004 0.004 12 0.002 13 3.97 3.96 14 3.97 3.96 15 3.99 2.71 16 3.96 5.21 17 3.98 4.04 18 3.96 3.88 19 8 8 20 1.38 1.38 21 1.38 1.73 22 1.38 1.38 23 3.24 3.22 24 5.07 4.87 25 2.59 2.46 26 2.55 2.48 27 2.59 2.47 28 2.52 2.43

1 3.25 3.24

2 3.25 3.23

3 0.002 1.21

4 1.62 1.61

5 1.62 1.61

6 1.57 1.56

7 0.001 0

8 3.27 3.26

9 3.27 3.26 10 0.001 0 11 5.02 4.81 12 2.38 2.3 13 4.9 0.001 14 2.4 2.36 15 2.4 2.36 16 0.001 0.001 17 5.1 4.93 18 2.4 2.35 19 2.4 2.36 20 4.9 0.001

1 5.8 5.72

2 5.8 5.73

3 5.8 5.73

40 0

5 5.8 5.72

IC201

IC401

IC402

MODE

PIN NO .

6 5.8 5.73 7 5.8 5.73 8 12.6 12.49

1 0.001 0.002 2 1.57 1.58 3 1.57 1.58 4 1.57 1.58 5 1.58 1.58 6 1.58 1.59 7 1.58 1.59 8 1.98 2.02

9 1.98 2.02 10 1.98 2.02 11 1.99 2.03 12 1.46 1.32 13 1.46 1.33 14 1.46 1.31 15 1.46 1.32 16 1.45 1.35 17 1.45 1.35 18 1.99 2.2 19 1.99 2.1 20 0 0.1 21 0 0 22 3.2 3.1 23 3.2 3.1 24 3.2 3.1 25 1.37 1.8 26 0.8 0.07 27 0 0.003 28 2.6 2.7 29 1.9 1 30 1.38 1.2 31 1.34 1.21 32 0.8 1.3 33 0.8 1.3 34 3 2.8 35 3.28 2.8 36 1.38 2.4 37 1.38 2.6 38 1.37 1.3 39 0.003 0 40 1.37 1.3 41 1.41 1.31 42 1.39 1.3 43 0.001 0 44 0.02 0.01 45 0.02 0.01 46 3.25 3.2 47 2.99 3 48 3.25 3.2 49 0 0.001 50 3.23 3.21 51 0.002 0.001

IC601

MODE MODE

PIN NO .

52 1.8 1.71 53 3.25 3.19 54 3.25 3.2 55 3.25 3.2 56 3.22 3.1 57 3.21 3.13 58 3.19 3.1 59 3.25 3.1 60 3.25 3.12 61 0.001 0.002 62 0 0.002 63 1.77 1.72 64 0 0.002 65 3.24 3.1 66 3.25 3.21 67 0.001 0.002 68 0.002 0.002 69 0.001 0.003 70 0.001 0.003 71 3.25 3.24 72 3.25 3.24 73 3.25 3.24 74 0.001 0.003 75 0 0.002 76 0.001 0.001 77 0.001 0.002 78 2.44 2.41 79 0.001 0.003 80 3.2 3.1 81 3.2 3.1 82 3.27 3.24 83 3.23 3.16 84 3.2 3.1 85 0.001 0.003 86 3 2 .91 87 3 2 .99 88 3 2.9 89 0.007 0.008 90 0.001 0.003 91 2.99 1.2 92 0.001 0.003 93 3.27 3.24 94 0.001 0.002 95 3.2 3.2 96 3.97 3.7 97 1.8 1.8 98 4.1 3.2

99 4.1 3.2 100 3.2 3.2 101 3.2 3.16 102 3.27 3.23 103 3.2 3.23 104 4 3.9 105 2.1 2.1 106 4.1 3.99

PIN NO .

107 3.2 3.21 108 3.25 3.21 109 0.02 0.03 110 5.1 5.15 111 4.2 3.6 112 4.2 3.68 113 2.6 2.5 114 3.2 3.1 115 1.6 1.5 116 0.001 0.003 117 0.4 0.02 118 1.8 1.7 119 0 0 120 0.9 0.8 121 1 0.8 122 1.8 1.8 123 1.38 1.31 124 1.23 1.2 125 1.3 1.25 126 0.34 0.35 127 3.25 3.2 128 1.8 1.81 129 2 1.9 130 1.04 0.8 131 1.8 1.75 132 0.002 0.003 133 0.001 0.9 134 0.002 0.001 135 1.06 0.99 136 3.24 3.2 137 3.06 3 138 3.17 3 139 3.1 3 140 3.26 3.1 141 3.26 3.1 142 3.04 3 143 1.27 1.12 144 0.002 0.003 145 1.57 1.6 146 0.04 0.04 147 1.47 1.39 148 0.002 0.003 149 1.67 1.55 150 1.59 1.6 151 1.8 1.7 152 0.02 0.01 153 0.02 0.01 154 3.25 3.14 155 1.7 3.24 156 0.4 0.04 157 0.002 0.003 158 0.003 0.003 159 0.003 0.003 160 0.02 0.04 161 0.001 0.003

PIN NO .

162 1.47 1.61 163 0.002 0.002 164 2.25 0.04 165 2.26 2.1 166 1.36 1.45 167 3.25 3.24 168 0.003 0.003 169 0.002 0 170 0.03 0.02 171 0.03 0.01 172 1.8 1.79 173 1.8 1.78 174 3.25 3.24 175 0.001 0.003 176 4 4.1 177 3.25 3.2 178 3.26 3.2 179 4.1 3.61 180 0.03 0.02 181 0.03 0.02 182 3.25 3.2 183 0.03 0.03 184 0.03 0.03 185 0.03 0.03 186 0.03 0.03 187 0.03 0.03 188 0.03 0.01 189 3.23 3.21 190 1.23 1.24 191 1.24 1.24 192 2.22 2.08 193 0 0.001 194 0.3 0.4 195 3.23 3.21 196 0.7 0.7 197 0 0.001 198 3.2 3.21 199 3.23 3.2 200 0.002 0.4 201 0.002 0.002 202 0.2 0.4 203 0.2 0.4 204 3.25 3.23 205 2.96 2.93 206 3.7 3.61 207 2.9 2.91 208 3.7 3.54 209 4 3.5 210 4 3.5 211 3.7 3.4 212 3.7 3.2 213 1.6 1.61 214 1.6 1.61 215 1.57 1.55 216 0.003 0.02

MODE

Page 26

DTH6300

44 First issue 03 / 05

CIRCUIT VOLTAGE CHART

STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY

MODE

PIN NO .

217 0 .003 0 .002 218 0 .003 1.2 219 0 .003 0.6 220 3 3.1 221 1.8 1.81 222 0 .005 1.2 223 0 0 224 0.3 0.01 225 1.6 1.61 226 0 0 227 1.8 1.8 228 0.6 0.7 229 0.6 0.7 230 1.37 1.1 231 1.34 1.12 232 0 0 233 1.8 1.8 234 3.1 3 235 1 1.7 236 1.3 1.67 237 0 0.001 238 0.9 0.4 239 3.1 3.07 240 0.1 0.1 241 0 0 242 0.01 0.1 243 0.01 0.1 244 3.1 3.01 245 1.09 1.65 246 1.35 1.36 247 0.01 0.1 248 1.5 3.07 249 0 0.001 250 0.01 0.24 251 0.01 0.24 252 1.48 1.52 253 1.47 1.51 254 1 1.04 255 0.9 0.98 256 3.2 3.18

1 0.002 0.2 2 3.2 0.4 3 3.2 3.07 4 3.2 3.2 5 3.2 3.01 6 3.2 0.5 7 3.2 0.5 8 3.2 2

9 0.002 0.002 10 0.01 0.009 11 3.2 3.2 12 5.1 5.1 13 3.27 3.26 14 3.27 3.26

IC602

MODE

PIN NO .

15 4.62 3.8 16 2.13 0.002 17 2.11 1.15 18 2.06 2.36 19 2.06 2.1 20 2.12 2.5 21 2.06 1.7 22 2.07 1.9 23 2.05 1.88 24 1.9 2 25 1.8 2 26 0 0.001 27 0.001 0 28 0 0 29 2.3 1.65 30 1.48 1.4 31 1.17 1.36 32 1.5 1.4 33 0.66 1.3 34 1.5 1.4 35 0.9 1 36 1.5 1.4 37 3.2 3.26 38 1.5 1.58 39 1.5 1.4 40 1.69 2 41 1.3 1.4 42 1.5 1.2 43 1.4 1.4 44 1.3 1.3 45 1.9 1.98 46 0.001 0.002 47 0.001 0.002 48 0 0.002

1 3.27 3.25 2 1.27 1.2 3 3.27 3.25 4 1.25 1.1 5 1.38 1.14 6 0.02 0.001 7 1.06 1.14 8 0.93 1.47

9 3.27 3.26 10 1 1.57 11 0.41 1.48 12 0.001 0.001 13 1.98 0.38 14 3.27 3.26 15 2.9 2.71 16 3.23 3.19 17 3.09 3 18 3.19 3.13 19 3.03 2.89 20 1.55 1.49

IC603

MODE

PIN NO .

21 0.71 1.2 22 0.03 0.007 23 0.16 0.22 24 1.38 1.39 25 1.36 1.37 26 1.37 1.37 27 3.27 3.26 28 0.002 0.001 29 1.36 1.95 30 2.28 1.46 31 2.25 2.25 32 1.49 1.68 33 0.01 0.01 34 0.02 0.007 35 0.004 0.05 36 0.02 0.01 37 1.03 0.72 38 1.71 1.71 39 2.59 2.7 40 0.01 0.05 41 0.002 0.01 42 1.33 1.1 43 3.27 3.26 44 1.35 1.11 45 1.33 1.02 46 0.002 0.001 47 1.36 0.92 48 1.3 0.92 49 3.27 3.26 50 1.48 1 51 1.91 0.5 52 0.002 0.001 53 0.33 1.47 54 0.002 0.001

1 0.002 0.001 2 0.002 0.001 3 0.002 0.001 4 0.002 0.001 5 3.27 3.26 6 3.27 3.26 7 0.002 0.001 8 3.27 3.26

1 0.002 0.002 2 3.27 3.24 3 0.002 0.002 4 0.008 3.24 5 0.002 0.001 6 2.26 0.78 7 0.002 0.001 8 2.26 3.24

9 0.002 0.001 10 0.001 0.001 11 3.12 2.56

IC606

IC607

PIN NO .

12 2.45 5.14 13 2.94 2.55 14 2.44 1.25 15 2.82 2.65 16 0.002 5.11 17 2.96 2.65 18 0.002 5.11 19 0.001 0.001 20 5.24 5.14

1 5.09 4.9 2 2.41 2.3 3 5.09 4.9 4 1.17 1.13 5 0.002 0.001 6 1.56 1.62 7 0.002 0.001 8 2.46 2.37

9 0.001 0.002 10 1.14 1.31 11 0.05 0.05 12 2.37 2.29 13 5.09 4.9 14 2.41 2.32 15 0.001 0.001 16 2.46 2.38 17 0.002 0.002 18 2.35 2.3 19 0.002 0.001 20 1.2 1.56 21 1.7 2.17 22 0.002 0.002 23 1.69 2.14 24 0.03 0.03 25 0.03 0.03 26 2.47 2.38 27 0.03 0.03 28 5.09 4.89

1 2.26 2.1

2 5 5.04

3 5.07 5.05

4 5.02 5

5 4.6 4.25

6 1.7 2.54

7 1.35 2.49

8 1.43 2.3

9 1.81 2.47 10 1.8 2.48 11 1.75 2.44 12 1.52 0.77 13 0.8 0.83 14 1.14 1.63 15 2.1 1.79 16 2.11 1.81

IC901

IC5F1

MODEMODE

PIN NO .

17 2.17 1.78 18 4.61 4.25 19 0.002 0.002 20 2.2 1.82 21 2.2 1.79 22 2.23 1.82 23 2.23 1.9 24 0.002 0.002

Page 27

DTH6300

First issue 03 / 05 45

POWER SUPPLY CIRCUIT BOARD - CIRCUIT IMPRIME DE L’ALIMENTATION LEITERPLATTE NETZTEIL - PIASTRA DEI CIRCUITI DI ALIMENTAZIONE PLATINA ALIMENTACIÓN

KEYBOARD / DISPLAY / CLOCK CIRCUIT BOARD CIRCUIT IMPRIME PLATINE COMMANDES / AFFICHEUR / HORLOGE LEITERPLATTE BEDIENTEIL / ANZEIGE / UHRENPLATTE PIASTRA TASTIERA / INDICATORE / OROLOGIO PLATINA MANDOS / INDICADOR / RELOJ

KDB P.C.B BOARD *

TIMER PC BOARD *

Some Models*

Page 28

DTH6300

48 First issue 03 / 05

Component side - Côté composants - Bestückungsseite Lato componenti - Lado componentes

MAIN BOARD - PLATINE PRINCIPALE - CHASSIS GRUNDPLATTE - PIASTRA PRINCIPALE - PLATINA PRINCIPAL

Page 29

DTH6300

First issue 03 / 05 49

COMPONENTS LOCATION - LOCALISATION DES ELEMENTS - LAGE DER BAUTEILE LOCALIZZAZIONE DEGLI ELEMENTI - LOCALIZACION DE LOS COMPONENTES

COMPONENT SIDE - COTÉ COMPOSANTS - BESTÜCKUNGSSEITE - LATO COMPONENTI - LADO COMPONENTES

* SOLDER SIDE

Page 30

DTH6300

52 First issue 03 / 05

Solder side - côté cuivre - Lötseite - Lato saldature -Lado del cobre

MAIN BOARD - PLATINE PRINCIPALE - CHASSIS GRUNDPLATTE - PIASTRA PRINCIPALE - PLATINA PRINCIPAL

Page 31

DTH6300

First issue 03 / 05 53

18 16

• Top View

• Bottom View

24 23

31 32 25 34

1 Drum Assembly 3 screws A-1 T

2 Plate Top 2 hooks A-2 T 2 3 Holder Assembly CST 6 chasses A-2 T 2,3 4 Gear Assembly Rack F/L 1 hook A-2 T 2,3,4 5 Opener Door Chassis Hole A-2 T 2,3,4,5 6 Arm Assembly F/L Chassis Hole A-2 T

7 Lever Assembly S/W Chassis Hole, A-2 T

1 hook 8 Motor Assembly L/D 1 screw A-3 T 9 Gear Wheel 2 hooks A-3 T

10 Arm Assembly Cleaner Chassis Embossing A-3 T 11 Head F/E Chassis Embossing A-3 T

12 Base Assembly A/C Head 1 screw A-3 T 2,3 13 Brake Assembly T 1 hook A-4 T 2,3 14 Arm Assembly Tension 1 hook A-4 T 2,3,13,14 15 Reel S / Reel T Shaft A-4 T

16 Base Assembly P4 Chassis Embossing A-5 T

17 Opener Lid Chassis Embossing A-5 T 17 18 Arm Assembly Pinch Shaft A-5 T 17 19 Arm T/up 1 hook A-5 T

20 Supporter, capstan Chassis Hole A-6 B 17,18 21 Belt Capstan/Motor Capstan 3 screws A-6 B

22 Lever F/R Locking Tab A-6 B 21, 22 23 Clutch Assembly D37 Washer A-6 B

24 Gear Drive/Gear Cam Washer/Hook A-7 B

25 Gear Sector Hook A-7 B 21 26 Brake Assembly Capstan Chassis Hole A-7 B 21,22,23, 27 Plate Slider Chassis Guide A-7 B

24,2526

21,22,23, 28 Lever Tension 1 Hook A7 B

24,2526,27

21,22,23, 29 Lever Spring 1 Hook A-7 B

24,2526,27

21,22,23, 30 Lever Brake 1 Hook A-7 B

24,2526,27

25 31 Gear Assembly P2/ Bass A-8 B

Gear Assembly P3 2, 3, 14, 32 Base Assembly P2 6 Chasses A-8 B 25, 31 /Base Assembly P3 25, 31 33 Base Loading 3 Hooks A-8 B 2,3,14 34 Base Tension Chassis Embossing A-9 T

35 Arm Assembly Idler Jog Locking Tab A-9 T

Parts fir stly Disassemble d

Order Of Dis-

assembled

Part Fixing Type

Ref.

Draw-

ings

Posit

ion

NOTE : Assemb ly order is a rever se of

disassemb ly order.

(1) For assembly, check the assembly mode is accurate. (2) Parts firstly disassembled indicate parts firstly disassem-

bled in disassembly of related parts.

T:Top, B:Bottom

POSITION DRAWING OF DECK MECHANISM

DISASSEMBLY AND ASSEMBLY OF DECK MECHANISM

Drum Assembly

Cable Flat

(Fig. A-1-1)

Fig. A-1

1. Disassembly of Drum Assembly (Figure A-1)

1) Separate cable flat from the Drum FPC and the Capstan

Motor.

2) Release 3 screws (S1) on the bottom side of the chassis,

and separate the drum assembly.

3) Release the hooks (H1, H2) and separate both the holder

FPC and the Cap FPC (disassemble if necessary).

(S1)

Holder FPC

Cautions in assembly of FPC

Drum FPC

Holder FPC

Assembly shape seen in the reverse direction

Cap, FPC

Cap FPC

Page 32

DTH6300

56 First issue 03 / 05

DISASSEMBLY AND ASSEMBLY OF DECK MECHANISM

(H4)

(B')

Plate Top

(Fig. A-2-1)

Arm Assembly F/L

(Fig. A-2-5)

Lever Assembly S/W

(Fig. A-2-6)

(B)

(C)

Holder Assembly CST

(Fig. A-2-2)

(E)

2. Disassembly of Plate Top (Fig. A-2-1)

1) Separate the right part while leaning back the (B) part of the plate top toward the arrow direction.

2) Separate the left part while leaning back the (B’) part of the plate top toward the arrow direction. (Tool used: Tool such as (-) driver, auger, etc with pointed or flat end)

CAUTIONS

Assemble while pressing the (C), (C’) part after corresponding them as in drawing.

(C')

(C)

(B')

(B)

3. Holder Assembly CST (Fig. A-2-2)

1) Firstly separate the left part from the groove on the (D) part of chassis while moving the holder assembly CST toward the arrow direction.

Holder Assembly CST

(D)

Chassis

4. Disassembly of Gear Assembly Rack F/L (Fig. A-2-3)

1) Separate the hook (H3) while leaning ahead the hook (3)

after moving the gear assembly rack F/L toward the arrow (A) direction.

2) Separate the gear assembly rack F/L toward the arrow (B)

direction.

CAUTIONS

For the assembly, correspond the gear part of gear assembly rack F/L to the gear drive.

Gear Rack F/L

Gear Drive

5. Opener Door (Fig. A-2-4)

1) Separate the opener door ahead from the guide hole of

chassis while turning it clockwise.

6. Arm Assembly F/L (Fig. A-2-5)

1) Firstly separate the left part of the arm assembly F/L from

the groove of chassis while pushing the arm assembly F/L toward the arrow direction.

2) Separate the right part from the groove of chassis.).

7. Lever Assembly S/W (Fig. A-2-6)

1) Separate the lever assembly S/W while pushing it toward

the arrow direction after removing the hook (4) on the left side of chassis.

Fig. A-2

Gear Assembly Rack F/L

(Fig. A-2-3)

Opener Door

(Fig. A-2-4)

(A)

(H3)

(B)

2) Separate the right part from each groove of chassis

CAUTIONS

Assemble by inserting the left part after firstly inserting the (E) part of the holder assembly CST into the groove on the (E’) part of chassis.

Chassis

(H4)

Page 33

DTH6300

First issue 03 / 05 57

DISASSEMBLY AND ASSEMBLY OF DECK MECHANISM

Arm Assembly Cleaner

Base Assembly A/C Head

(Fig. A-3-5)

(A)

(S5)

(Fig. A-3-3)

(A)

(H5)

Gear Wheel

(Fig. A-3-2)

Motor Assembly L/ D

(Fig. A-3-1)

Head F/E

(Fig. A-3-4)

Fig. A-3

8. Motor Assembly L/D (Fig. A-3-1)

1) Take the connector (C1) connected to the Capstan motor PCB out.

2) Remove a screw (S4) of the chassis (S4) and step backward, and disassemble it while holding it up.

9. Gear Wheel (Fig. A-3-2)

1) Release the hook (H5) of the gear wheel and disassemble it upward.

(C1)

(S4)

10. Arm Assembly Cleaner (Fig. A-3-3)

1) Separate the (A) part of Fig. A-3-1 from the embossing of chassis, and hold it up while turning it anti-clockwise.

11. Head F/E (Fig. A-3-4)

1) Separate the (A) part of the head F/E from the embossing of chassis, and hold it up while turning it anti-clockwise.

12. Base Assembly A/C Head (Fig. A-3-5)

1) Release a screw (S5) and disassemble while holding it up.

Page 34

DTH6300

58 First issue 03 / 05

DISASSEMBLY AND ASSEMBLY OF DECK MECHANISM

Arm Assembly Tension

(Fig. A-4-2)

(H7)

Reel S

Spring Tension

(Fig. A-4-3)

Reel T

(Fig. A-4-3)

(H8)

Spring Tension

Fig. A-4

Brake Assembly T

(Fig. A-4-1)

(H6)

13. Brake Assembly T (Fig. A-4-1)

1) Release the spring tension from the lever spring hook (H6).

2) Disassemble the brake assembly T while holding it upward.

14. Arm Assembly Tension (Fig. A-4-2)

1) Release the spring tension the hook (H7) from the arm assembly tension.

2) After releasing the hook (H8) of the base tension, separate it while holding it up.

CAUTIONS

Spring used for both brake assembly T and arm assembly tension is used (2EA used).

15. Reel S/Reel T (Fig. A-4-3)

1) Disassemble the reel S/ reel T while holding it up (comparison between Reel S and Reel T)

Reel S Reel T

Page 35

DTH6300

First issue 03 / 05 59

DISASSEMBLY AND ASSEMBLY OF DECK MECHANISM

Opener Lid

(Fig. A-5-2)

(B)

Arm Assembly Pinch

(Fig. A-5-3)

(C)

Base Assembly P4

(Fig. A-5-1)

(A)

(C)

(H9)

Arm T/up

(Fig. A-5-4)

Chassis

Fig. A-5

16. Base Assembly P4 (Fig. A-5-1)

1) Release the (A) part of the base assembly P4 from the embossing of chassis.

2) Hold the base assembly P4 up while turning it anti-clockwise.

17. Opener Lid (Fig. A-5-2)

1) Release the (B) part of the opener lid from the embossing of chassis.

2) Disassemble the opener lid upward while turning it anticlockwise.

18. Arm Assembly Pinch (Fig. A-5-3))

1) Hold the arm assembly pinch up.

19. Arm T/up (Fig. A-5-4)

1) Turn the arm T/up to release the anchor jaw (H9) part of chassis and then hold it upward.

CAUTIONS

For the assembly, check the (C) part of the arm assembly pinch is assembled as in drawing.

- REVERSE THE MECHANISM.

Page 36

DTH6300

60 First issue 03 / 05

DISASSEMBLY AND ASSEMBLY OF DECK MECHANISM

Suppoter Capstan

(Fig. A-6-1)

Belt Capstan

(Fig. A-6-2)

Motor Capstan

(Fig. A-6-3)

(L1)

(Fig. A-6-4)

(L1)

Lever F/R

Washer(W1)

Clutch Assembly D3 7

(Fig. A-6-5)

(S6)

Fig. A-6

20. Supporter , Capstan (Fig. A-6-1)

1) Turn the supporter and Capstan by 90 deg. clockwise with a driver for disassembly.

21. Belt Capstan (Fig. A-6-2) /

Motor Capstan (Fig. A-6-3)

1) Separate the belt Capstan.

2) Undo 3 screws (S6) on the bottom side of chassis and disassemble it upward.

Chassis

22. Lever F/R (Fig. A-6-4)

1) Release the locking tab (L1) and then disassemble it upward.

23. Clutch Assembly D37 (Fig. A-6-5)

1) Remove the washer (W1) and then disassemble it upward.

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DISASSEMBLY AND ASSEMBLY OF DECK MECHANISM

Gear Cam Hole(B )

Gear Cam Hole(C )

Gear Drive Hole(A )

(H10)

(Fig. A-7-2)

(W2)

Gear Cam

Washer (W2)

Gear Drive

(Fig. A-7-1)

Lever Brack

(Fig. A-7-8)

(L2)

(H11)

Gear Sector

(Fig. A-7-3)

Brake Assembly Capstan

(Fig. A-7-4)

(Fig. A-7-5)

(B)

(Fig. A-7-7)

(A)

Plate Slider

Lever Tension

(Fig. A-7-6)

Lever sprin g

Base Loadin g

Fig. A-7

24. Gear Drive (Fig. A-7-1)/ Gear Cam (Fig. A-7-2)

1) Remove the washer (W2) and then disassemble the gear

drive.

2) Release the hook (H10) of the gear cam and then disas-

semble it upward.

CAUTIONS

For the assembly, adjust both the gear driver hole (A) and the gear cam hole (B) straightly and then correspond the gear cam hole (C) to the chassis hole.

25. Gear Sector (Fig. A-7-3)

1) Release the hook (H11) of the gear sector and then hold

the gear sector upward.

26. Brake Assembly Capstan (Fig. A-7-4)

Chassis

1) Release the locking tab (L2) on the bottom side of the plate slider and then disassemble it upward.

27. Plate Slider (Fig. A-7-5)

1) Disassemble the plate slider while holding it up.

28. Lever Tension (Fig. A-7-6)

1) Release the lever tension from the guide (A) of chassis while turning it anti-clockwise.

2) Disassemble the lever tension while holding it up.

29. Lever Spring (Fig. A-7-7)

1) Release the (B) part of the lever spring from the guide (A) of chassis while turning it anti-clockwise.

2) Disassemble the lever tension while holding it up.

30. Lever Brake (Fig. A-7-8)

1) Disassemble the lever brake while holding it up.

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62 First issue 03 / 05

DECK MECHANISM DISASSEMBLY

Gear assembly P2 Hole

Gear assembly P3 Hole

Lever Tension Boss

Plate slider Hole(B)

(H12)

(H14)

Gear Assembly P3

(Fig. A-8-2)

Gear Assembly P2

(Fig. A-8-1)

(H13)

Base Loading

(Fig. A-8-5)

Chassis

Base Assembly P3

(Fig. A-8-4)

Fig. A-8

31. Gear Assembly P2 (Fig. A-8-1)/ Gear Assembly P3 (Fig. A-8-2)

1) Hold the gear assembly P2 upward.

2) Hold the gear assembly P3 upward.

CAUTIONS

For the assembly, check the holes of both the gear assembly P2 and the P3 are adjusted straightly, and then correspond the gear section groove (A) to the plate slider hole (B).

(B)

Base Assembly P2

(A)

(Fig. A-8-3)

32. Base Assembly P2 (Fig. A-8-3)/ Base Assembly P3 (Fig. A-8-4)

1) Disassemble the base assembly P2 downward while mov-

ing it toward the arrow (A) direction along with the guide hole of chassis.

2) Disassemble the base assembly P2 downward while mov-

ing it toward the arrow (B) direction along with the guide hole of chassis.

33. Base Loading (Fig. A-8-5)

1) Release 3 hooks (H12, 13, 14) of the base loading, and

then disassemble them upward.

- Reverse the mechanism.

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DISASSEMBLY AND ASSEMBLY OF DECK MECHANISM

Base Tension

(Fig. A-9-1)

(A)

(B) (C)

Arm Assembly Idler Jog

(Fig. A-9-2)

(D)

Fig. A-9

34. Base Tension (Fig. A-9-1)

1) Release the (A) part of the base tension from the embossing of chassis.

2) Hold the base tension upward while turning it anti-clockwise.

Chassis

35. Arm assembly Idler Jog (Fig. A-9-2)

1) Push both (B), (C) parts in Fig. A-9-2 toward the arrow direction.

2) Disassemble the arm assembly idler upward.

CAUTIONS

Take care to ensure that the (D) part in the drawing is not hung to chassis in disassembly.

Page 40

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64 First issue 03 / 05

DECK MECHANISM ADJUSTMENT

• Fixtures and Tools for Service

1. Cassette Torque Meter

2. Alignment tape 3. Torque gaug e 600g.Cm ATG

250

200

150

-3 0

100 150

200

250

4. Torque gauge adaptor 5. Post height adjusting driver 6. + Type driver (ø5)

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First issue 03 / 05 65

DECK MECHANISM ADJUSTMENT

1. Mechanism Assembly Mode Check

Purpose of adjustment : To make tools normall y operate by positioning tools accurately .

Fixtures and tools used VCR (VCP) status Checking Position

• Blank Tape (empty tape)

1) Turn the VCR on and take the tape out by pressing the eject button.

2) Separate both top cover and plate top, and check both the hole (A) of gear cam and the hole (A’) of chassis correspond (Fig. C-2).

3) If it is done as in the paragraph 2): Turn the gear cam as in No.2) after mantling the motor assembly L/D.

• Eject Mode (with cassette withdrawn)

CHECK DIAGRAM

BOTTOM VIEW

• Mechanism and Mode Switch

4) Undo the screw fixing the deck and the main frame, and separate the deck assembly. Check both the hole (A) of gear cam and the hole (A’) of chassis correspond (Fig. C-1).

5) Check the mode S/W on the main P.C. board locates at a proper position as in (B) of the Fig. (C-1).

6) Connect the deck to the main P.C. board and perform all types of test.

Gear Cam

(B)

(C)

Gear Drive

Correspondence of the gear cam hole (O)

and the gear drive hole (O)

Mode S/W

TOP VIEW

Fig. C-1

Fig. C-2

Motor Assembly L/D

Gear Cam

(A')

Chassis Hole

(A)

Gear Cam Hole

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66 First issue 03 / 05

DECK MECHANISM ADJUSTMENT

2. Previous Preparation for Deck Adjustment

(Preparation to load the VCR (VCP) with cassette tape not inserted)

1) Take the power cord from the consent.

2) Separate the top cover and the plate assembly top.

3) Insert the power cord into again.

4) Turn the VCR (VCP) on and load the cassette while pushing the lever stopper of the holder assembly CST backward. In this case, clog both holes on the housing

If doing so, proceeding to the stop mode is done. In this status, input signals of all modes can be received. However, operation of the Rewind and the Review is impossible since the take-up reel remains at stop status and so cannot detect the reel pulse (however, possible for several seconds).

rail part of chassis to prevent detection of the end sensor.

3. Torque Measuring

Purpose of Measuring : To measure and check the reel torque on the take-up part and the

supply part that performs basic operation of the VCR (VCP) for smoothl y forwarding the tape. Measure and check followings when the tape is not smoothly wound or the tape velocity is abnormally pr oceeded:

VCR (VCP) status Measuring methodFixtures and tools used

• Torque Gauge (600 g.cm ATG)

• Torque Gauge Adaptor

• Cassette Torque Meter SRK-VHT-303

• Play (FF) or Review (REW) Mode

• Try to operate the VCR (VCP) per mode with the tape not inserted (See ‘2. Prior Preparation for Deck Adjustment).

• Measure after adhering and fixing the torque gauge adaptor to the torque gauge (Fig. C-3-1)

• Read scale of the supply or take-up part of the cassette torque meter (Fig. C-3-2).

Item Fast forward Torque Rewind Torque Play Take-Up Torque Review Torque

Fast Forward Rewind Play Review

Mode Instruments Reel Measured Measuring Value

Torque Gauge Torque Gauge VHT-303 VHT-303

Take-Up Reel Supply Reel Take-Up Reel Supply Reel

NOTE

Adhere the torque gauge adaptor to the torque gauge for measuring the value.

• Cassette Torque Meter (SRK-VHT-303)• Torque Gauge (600g.cm ATG)

Torque Gauge

Torque Gauge Adaptor

More than 400g°cm More than 400g°cm 40~100g°cm 120~210g°cm

-30 3

QU R

Reel Table

Fig. C-3-2Fig. C-3-1

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DECK MECHANISM ADJUSTMENT

4. Guide Roller Height Adjustment

Purpose of adjustment :To ensure that the bottom surface of the tape can travel along with

the tape lead line of the lower drum by constantly and adjusting and maintaining the height of the tape.

4-1. Prior Adjustment

Fixtures and tools used VCR (VCP) status Adjustment position

• Post Height Adjusting Driver

• Play or Review Mode

Adjustment Procedure

1) Travel the tape and check the bottom surface of the tape travels along with the guide line of the lower drum.

2) If the tape travels toward the lower part of guide line on the lower drum, turn the guide roller height adjusting screw to the left

3) If it travels to the upper part, turn it to the right.

4) Adjust the height of the guide roller to ensure that the tape is guided on the guide line of the lower drum at the inlet/outlet of the drum. (Fig. C-4-1)

4-2. Fine Adjustment

Fixtures and tools used

• Oscilloscope

• Standard test tape

• Post height adjusting driver

Measuring tools and

connection position

• CH-1: PB RF Envelope

• CH-2: NTSC : SW 30Hz PAL : SW 25Hz

• Head switching output

point

• RF Envelope output

point

1) Play the standard test tape after connecting the probe of oscilloscope to the RF envelope output point and the head switching output point.

2) Tracking control (playback) : Locate it at the center (Set the RF output to the maximum value via the tracking control when such adjustment is completed after the drum assembly is replaced.)

3) Height adjusting screw: Flatten the RF waveform. (Fig. C-4-2)

4) Move the tracking control (playback) to the right/left. (Fig. C-4-3)

5) Check the start and the end of the RF output reduction width are constant.

• The guide roller height adjusting screw on the supply guide roller and the take-up guide roller

ADJUSTMENT DIAGRAM

GUIDE ROLLER HEIGHT ADJUSTMENT SCREW

Fig. C-4-1

VCR (VCP) status Adjustment position

• Play the standard test tape.

• Guide roller height adjusting screw

Waveform

P2 POST ADJUSTMENT

Flatten the waveform by

P3 POST ADJUSTMENT

Fig. C-4-2

When the tracking control locates at the center.

lightly turning the guide roller height adjustment screw.

When turning the tracking control to both sides.

Fig. C-4-2

CAUTIONS

There must exist no crumpling and folding of the tape due to excess adjustment or insufficient adjustment.

Connection Diagram

OSCILLOSCOPE

RF ENVELOPE OUTPUT POINT

CH-1 CH-2

HEAD RF SWITCHING OUTPUT POINT

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68 First issue 03 / 05

DECK MECHANISM ADJUSTMENT

5. Audio/Control (A/C) Head Adjustment

Purpose of adjustment : To ensure that audio and control signals can be recorded and

played according to the contract tract by constantly maintaining distance between tape and head, and tape tension between the P3 post and the P4 post.

5-1. Prior Adjustment (performed only when no audio output appears in play of the standard test tape)

Fixtures and tools used VCR (VCP) status Adjustment position

• Blank Tape (Empty Tape)

• Driver (+) Type ø 5

• Play the blank tape (empty tape).

Adjustment Procedure/Adjustment Diagrams

1) Basically use the A/C head assembly adjusted as in SPEC.

2) Check there is crumpling and folding of the tape around the A/C head. If it is, Turn and adjust the tilt adjusting screw to ensure that the tape corresponds to the bottom guide of the P4, and recheck the tape path after proceeding play for 4-5 seconds.

8.3

A/C Head Base

Fig. C-5-1

• Tilt adjusting screw (C)

• Height adjusting screw (B)

• Azimuth adjusting screw (A)

3) Where the tape bottom is not equal to Fig. C-5-3, Adjust the height by using the height adjusting screw (B) and then readjust it by using the tilt adjusting screw (C).

CAUTIONS

Always check the height of the A/C head since most ideal height of A/C head can be obtained when the bottom part of the tape is away 0.2 ~ 0.25mm from the bottom part of the A/C head.

A/C Head

Tape

0.2~0.25mm

Tape

Fig. C-5-3

Azimuth Adjustment Screw(A)

X-Value Adjustment Hole

Fixed Screw

Tilt Adjustment

Screw(C)

Height Adjustment

Screw(B)

A/C Head Assembly

Fig. C-5-2

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DECK MECHANISM ADJUSTMENT

5-2. Tape Path Check between Pinch Roller and

Take up Guide (Check in the Rev Mode)

1) Check the tape pass status between the pinch roller and the take-up guide.(Check there is crumpling of the tape pass and folding of the take-up guide.)

1) (1) When holding of the take-up guide bottom occurs

Turn the tilt adjusting screw (C) clockwise and travel it stably to ensure there is no crumbling or folding of the tape.

1) (2) When holding of the take-up guide top occurs

Turn the tilt adjusting screw (C) anti-clockwise and

travel it stably to ensure there is no crumbling or folding of the tape.

1) 2) Check there is folding of the tape at the bottom or top

of the take-up guide in cutting-off the REV mode

CAUTIONS

If the RF waveform is changed after adjusting the A/C head, perform fine adjustment to ensure the RF waveform is flattened.

5-3. Fine Adjustment (Azimuth Adjustment )

Fixtures and tools used Connection position VCR (VCP) status Adjustment position

• Oscilloscope

• Standard test tape (only for SP)

• Driver (+) Type Ø 4

Adjustment Procedure

1) Connect the probe of Oscilloscope to the audio output

jack.

2) Ensure that Audio 1KHz, 7KHz output is flattened at the

maximization point by adjusting the Azimuth adjusting screw (A).

• Audio Output Jack • Play the standard test

• Tape, 1KHz, 7KHz.

1KHz

A: Maxim um

Fig. C-5-4

• Azimuth Adjusting Screw (A)

• Height Adjusting Screw (B)

B: Minimum

7KHz

6. X-distance Adjustment

Purpose of adjustment : To maintain compatibility with other VCR (VCP).

Fixtures and tools used Connection position VCR (VCP) status Adjustment position

• Oscilloscope

• Standard test tape (only for SP)

• Driver (+) Type Ø 4

• CH-1: PB RF Envelope

• CH-2: NTSC ; SW 30Hz PAL:SW 25Hz

• Head switching output

point

• RF Envelope output

point

Adjustment Procedure

1) After releasing the auto tracking, lightly turn the fixing screw. Turn the (+) type driver (Ø 3 ~ Ø 4) on the X-distance adjusting hole to the right or left. Adjust the RF envelope level to the maximum point and then fix the fixing screws.

2) For the 31mm head, adjust it with the SP tape recorded in the width of 31mm since the head travels on the tape track only for SP with the width of 58mm.

• Play the standard test tape.

Connection Diagram

X-distance Adjusting Hole

Fixing Screw

Azimuth

Adjustment

Screw(A)

Fig. C-6

RF ENVELOPE OUTPUT POINT

HEAD RF SWITCHING OUTPUT POINT

Left

Grove of Base A/C

Right

Tilt Adjusting Scre w (C)

Height Adjusting Screw (B)

OSCILLOSCOPE

CH-2CH-1

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70 First issue 03 / 05

DECK MECHANISM ADJUSTMENT

7. Adjustment after Drum Assembly (Video Heads)

Purpose of adjustment :To adjust and stabilize the height change, X-distance change, etc

depending on the guide roller after assembling the drum.

Fixtures and tools used Connection position VCR (VCP) status Adjustment positio n

• Oscilloscope

• Standard test tape (only for SP)

• Post Height Adjusting Driver

• Driver (+) Type Ø 5

• CH-1: PB RF Envelope

• CH-2: NTSC : SW 30Hz PAL:SW 25Hz

• Head switching output

point

• RF Envelope output

point

Checking/Adjustment Procedure

1) Play the blank tape (empty tape) and check whether the guide roller crumbles or wrinkles the tape and adjust it if necessary.

2) Check that the RF envelope output waveform is flat, and adjust the height of the guide roller while playing the standard test tape.

3) Adjust the switching point.

4) Check the RF envelope output is the maximum when the tracking control locates at the center. If not maximum, set up to ensure that RF envelope output becomes the maximum by turning the (+) type driver (Ø 3 ~ Ø 4) on the base A/C groove.

• Play the blank tape.

• Play the standard test tape.

Connection Diagram

RF ENVELOPE OUTPUT POINT

HEAD RF SWITCHING OUTPUT POINT

Waveform

V1/V MAX = 0.7 V1/V MAX = 0.8 RF ENVELOPE OUTPUT

• Fine adjustment of guide roller

• Switching Point

• Tracking Preset

• X-distance

OSCILLOSCOPE

CH-2CH-1

V2V1V1

8. Check of Traveling Device after Deck Assembly

8-1. Audio, RF Normalization Time (Loc king Time) Check in Play after CUE or REV

Fixtures and tools used Measuring standard Connection position VCR (VCP) status

• Oscilloscope

• 6H 3KHz Color Bar Standard Test tape

• Stop Watch

• RF Locking Time: Within 5 seconds

• Audio Locking Time : Within 10 seconds

• CH-1: PB RF Envelope

• CH-2: Audio output

• RF Envelope output point

• Play the 6H 3KHz Color Bar Standard Test tape.

• Audio output jack

Checking Procedure

1) Check that locking time of the RF and Audio waveform is fallen within the measuring standard in conversion of the play mode from the CUE or the REV mode.

2) Readjust the paragraph 5 and 6 if it deviates from the standard.

8-2. Check of Tape Curl and Jam Status

Fixtures and tools used Fixtures and tools used Fixtures and tools used

• T-160 Tape

• T-120 Tape

Checking

1) Check there is no abnormality of every traveling post status.

2) There must be no abnormal operation of the counter in

Procedure

• There must be no jam or curl at the first, middle and end position of tape.

occurrence of folding of the bottom tape. There must be not abnormality of audio signal in damage of the top tape.

3) If there is abnormality, readjust the adjustment paragraph 4 and 5.

• Travel the tape at the position of its first and end.

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PROTECTION, MAINTENANCE AND CHECK OF VIDEO FUNCTION

1. Checking Points prior to Repair

Following abnormal phenomena may be repaired by removal of foreign materials and oil supply. Check oiling is required at the checking set or cleaning status is complete. Determine that necessity of checking and repair the set exists after checking the using period of the set together with the user. In this case, followings must be checked:

Phenomena

Color beat Pollution of Full-Erase Head o

S/N, Color Faded Pollution of Video Head o

Horizontal, Vertical Jitte o

Poor Sound, Low Sound o

No tape wound or tape wound loosely. FF or REW impossible, or slow turning

Tape loosely wound in REV or Unloading

Checking Points and Cause

Pollution of Video Head or Tape Transport System

Pollution of Audio/Control Head

Pollution of Pinch Roller or Belt Capstan Belt

Deterioration of Clutch Assembly D37 Torque

Pollution of Drum and Traveling Device

Replace-

ment

Fig. C-9-3

CAUTIONS

If operation of the position with (O) mark is abnormal even after removing cause, replace it with substitute product since it shows damage or wearing.

F/E Head

Video Head

A/C Head

Pinch Roller

Belt Capston

Clutch

Assembly A37

Fig. C-9-1 TOP VIEW

Fig. C-9-2 BOTTOM VIEW

* No. (1) ~ (12) shows sequence that the tape moves from the supply reel to the take-up reel.)

(3) F/E Head

(5) Drum Assembly

(Video Head)

(4) Base Assembly

(2) Tension Post

(1) Supply Reel

(6) Base Assembly

(7) A/C Head

(8) P4 Post

(10) Pinch Roller (11) Take-up Guide

Post

(9) Capstan Shaft

(12) Take-up Reel

Fig. C-9-3 Tape Transport System

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72 First issue 03 / 05

PROTECTION, MAINTENANCE AND CHECK OF VIDEO FUNCTION

2. Essential Check and Repair

Recording density of the video is far higher than the audio. Therefore video parts are very precise so as to allow only error of 1/1000mm or so in order to maintain compatibility with other videos. If one of these parts is polluted or old, same phenomena will appear as they are damaged. To maintain clear screen, regular check, replacement of old and damaged parts and oil supply, etc are essential.

3. Regular Check and Repair

Check and repair schedule is not constant since they vary depending on method that the consumer uses video and environment where the video is installed at. However, for the video used by common household, good screen will be maintained if regular check and repair per 1,000 hour is performed. The following chart shows relationship between using time and checking time:

Table 1

Time

Requiring

Checking

Average hour s used per day

One hour

Two hour s

Three hour s

About 1 year

About

18 months

About

3 years

4. Tools for Check and Repair

(1) Grease: Floil G-3114 (KANTO) or equivalent grease

(Green) (2) Grease: Kanto G-754, PL-433 (Yellow) (3) Alcohol (Isopropyl Alcohol) (4) Cleaning Patch (cloth)

5. Maintenance Process

5-1) Removal of Foreign Material

(1) Removal of foreign material from video head (Fig. C-9-4)

Firstly try to use a cleaning tape.

(1) Use a cleaning patch if foreign materials are not removed

with the cleaning tape due to severe dirty of the head.

Soak the cleaning patch in alcohol and put it to the head

tip. Smoothly turn the drum (turning cylinder) to the right

or left (In this case, the cleaning patch must not be moved

vertically).

(1) After completely drying the head, test the traveling status

of the tape.

(1) If alcohol (Isopropyl Alcohol) remains at the video head,

the tape may be damaged when this solution touches

with the head surface.

Never use a cloth bar (commercial sale)

(2) Wipe the tape transport system and the drive system

with the cleaning patch soaked in alcohol (Isopropyl

Alcohol) when removing foreign materials from them.

1) The part touched with the traveling tape is called as tape transport system. The drive system consists of parts to travel the tape.

(2) 2) Care must be exercised so that unreasonable force to

change the pattern will be applied to the tape transport system during removal of foreign materials.

Cleaning Patch

(Cloth)

Soak alcohol (Isopr opyl Alcohol).

Drum (Turning Cylinder)

Head Tip

Smoothl y turn the drum (turning cylinder) touching the soft surface to the head tip surface .

Fig. C-9-4

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DTH6300 First issue 03 / 05 73

PROTECTION, MAINTENANCE AND CHECK OF VIDEO FUNCTION

5-2) Grease Applications

(1) Grease Application Method

Apply grease by using a cloth swab or brush. Care must be exercised so that excess quantity should not be used. If the excessive quantity is applied, wipe it with the gauze soaked in alcohol (Isopropyl Alcohol).

NOTE: POSITION OF GREASE APPLICATION

(1) Inner Side Surface and Top

Surface of Loading Path

(2) Stable Adhesion Part of Base

P2, P3

(3) Arm Pinch Shaft

(4) Gear Wheel Shaft (5) Reel S. T. Shaft

(1) (2) (3) (4): KG-684G (Green) (5): PL-433 (Yellow)

(2) Regular Grease Application

Apply grease to the designated application position every 500 hour.

(1) Inner Side Surface and Top

Surface of Loading Path

(2) Stable Adhesion Part of Base

P2, P3 Coil (3) Gear Cam Shaft (4) Gear Drive Shaft (5) Clutch Shaft Groove

(6) Guide Part on the Plate Slider

Side Wall (Left)

(7) Guide Part on the Plate Slider

Side Wall (Right) (1) (2) (3) (4) (5) (6) (7): KG684G (Green)

Chassis (Bottom)

Gear Part

Chassis (TOP)

Cam Part (PL-433.Yellow)

Gear Part (PL-433.Yellow)

Gear Sector Gear Cam

Base Loading Gear Drive

Cam Part Side Application (KG-684G.Green)

Boss Part Side Wall (PL-433.Yellow)

Gear Part Side Application (PL-433.Yellow)

Inner Surface of

Guide Rail

(KG-684G.Green)

Cam Part

(KG-684G , GREEN)

Lever, Brake Driving Cam Part

Side Wall Guide Part

Gear Rack F/L

Gear Sector Driving Part

Lever F/R Driving Part

Lever, Spring Driving Part

Cam Part (KG-684G , GREEN)

Lever Tension Driving Cam Part

Side Wall Guide Part

Chassis (L) Chassis (R )

Plate Slider

Page 50

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74 First issue 03 / ,05

PROTECTION, MAINTENANCE AND CHECK OF VIDEO FUNCTION

Lever, F/R, Base , Tension GEAR AY, P2 & P3

LEVER, F/R

Clutch Contact Part (PL-433, Yellow)

Tension Arm Party Hinge Part (PL-433, Yellow )

BASE, TENSION

PL-433

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DTH6300

First issue 03 / 05 75

DECK MECHANISM PARTS LOCATION

• Top View (With Tray)

• Top View (Without Tray)

Procedure

Starting No.

Holder

Clamp

1, 2

1, 2, 3

1, 2, 3, 4

1, 6

1, 2, 6

1, 2, 6, 8

1, 2, 6, 8,

1, 2, 7

1, 2

1, 2 ,13

1, 2, 13, 14

1, 2, 7, 12, 13, 14

1, 2, 13

1, 2, 7, 12, 13,

14, 15, 16, 17

Clamp Assembly

Disc

Plate Clamp

Magnet Clamp

Clamp Upper

Tray Disc

Base Assembly Sled

Gear Assembly

Feed

Gear

Middle

Gear Assembly

Rack

Rubber Rear

Frame Assembly

Up/Down

Belt Loading

Gear Pulley

Gear Loading

Guide Up/Down

PWB Assembly

Base Main

Parts Fixing Type

2 Screws,

2 Locking Tabs

4 Screws,

1 Screw

1 Locking Tab

1 Hook

2Screw

Disass

embly

Bottom

Fig-

ure

5-1

5-2

5-3

5-4

• Bottom View

Note

When reassembling, perform the procedure in reverse order.

The “Bottom” on Disassembly column of above Table indicates the part should be disassembled at the Bottom side.

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76 First issue 03 / 05

DECK MECHANISM DISASSEMBLY

Fig. 5-1 Fig. 5-2

1.Holder Clamp (Fig. 5-1)

1) Release 2 Screws(S1).

2) Unhook 2 Locking Tabs(L1).

3) Lift up the Holder Clamp and then separate it from the Base Main.

1-1. Clamp Assemb ly Disc

1) Place the Clamp Assembly Disc as Fig. (A)

2) Lift up the Clamp Assembly Disc in direction of

arrow(A).

3) Separate the Clamp Assembly Disc from the Holder

Clamp.

1-1-1. Plate Clamp

1) Turn the Plate Clamp to counterclockwise direction and then lift up the Plate Clamp.

1-1-2. Magnet Clamp 1-1-3.Clamp Upper

2. Tray Disc (Fig. 5-2)

1) Insert and push a Driver in the emergency eject hole(A) at the right side, or put the Driver on the Lever(B) of the Gear Emergency and pull the Lever(B) in direction of arrow so that the Tray Disc is ejected about 15~20mm.

2) Pull the Tray Disc until it is separated from the Base Main completely.

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DTH6300 First issue 03 / 05 77

DECK MECHANISM DISASSEMBLY

3.Base Assembl y Sled (Fig. 5-3)

1) Release 4 Screw(S2).

2) Disconnect the FFC Connector(C1)

3-1. Gear Assemb ly Feed 3-2. Gear Middle

3-3. Gear Assemb ly Rack

Fig. 5-3

1) Release the Screw(S3)

4. Rubber Rear (Fig. 5-3)

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DTH6300

78 First issue 03 / 05

DECK MECHANISM DISASSEMBLY

Fig. 5-4

5. Frame Assembl y Up/Down (Fig. 5-4)

Note

Put the Base Main face down(Bottom Side)

1) Release the Screw(S4)

2) Unlock the Locking Tab(L3) in direction of arrow and then lift up the Frame Assembly Up/Down to separate it from the Base Main.

Note

• When reassembling move the Guide Up/Down in direction of arrow(C) until it is positioned as Fig.(C).

• When reassembling insert (A) portion of the Frame Assembly Up/Down in the (B) portion of the Guide Up/Down as Fig.(B)

6. Belt Loading(Fig. 5-4)

Note

Put the Base Main on original position(Top Side)

7. Gear pulle y (Fig. 5-4)

1) Unlock the Locking Tab(L4) in direction of arrow(B) and

then separate the Gear Pulley from the Base Main.

8. Gear Loading (Fig. 5-4)

9. Guide Up/Down (Fig. 5-4)

1) Move the Guide Up/Down in direction of arrow(A) as Fig.(A)

2) Push the Locking Tab(L5) down and then lift up the Guide Up/Down to separate it from the Base Main.

Note

When reassembling place the Guide Up/Down as Fig.(C) and move it in direction arrow(B) until it is locked by the Locking Tab(L5). And confirm the Guide Up/Down as Fig.(A)

10. PWB Assembl y Loading (Fig. 5-4)

Note

Put the Base Main face down(Bottom Side)

1) Release 2 Screws(S5)

2) Unlock the Loading Motor (C2) from the Hook (H1) on the Base Main.

3) Unlock 2 Locking Tabs(L6) and separate the PWB Assembly Loading from the Base Main.

11. Base Main(Fig. 5-4)

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The description and characteristics given here are of informative significance only, and non committal. To keep up the high quality of our products, we reserve the right to make any changes or improvement without previous notice. • Les descriptions et caractéristiques figurant sur ce document sont données à titre d'information et non d'engagement. En effet, soucieux de la qualité de nos produits, nous nous réservons le droit d'effectuer, sans préavis, toute modification ou amélioration. • Die Beschreibungen und Daten in dieser Anleitung dienen nur zur Information und sind nicht bindend. Um die Qualität unserer Produkte ständig zu verbessern, behalten wir uns das Recht auf Änderungen vor. • Le descrizioni e le caratteristiche date su questo documento sono fornite a semplice titolo informativo e senza impegno. Ci riserviamo il diritto di eseguire, senza preavviso, qualsiasi modifica o miglioramento. • Las descripciones y características que figuran en este documento se dan a título de información y no de compromiso. En efecto, en bien de la calidad de nuestros productos, nos reservamos el derecho de efectuar, sin previo aviso, cualquier modificación o mejora.

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This technical documentation is for use by maintenance technicians only Documentation technique exclusivement destinée aux professionnels de la maintenance Diese Angaben und Hinweise sind ausschließlich für den Service des Fachhändlers bestimmt Documentazione tecnica destinata esclusivamente ai tecnici dell'assistenza Documentación técnica destinada exclusivamente a los profesionales de mantenimiento

Thomson DTH-6300-F, DTH-6300-R, DTH-6300-U, DTH-6300-E Service manual

Specifications and Main Features

Frequently Asked Questions

User Manual

DTH6300

CONTENTS

FR Prévention des composants et sous-ensembles contre les ESD ( Décharge d'Electricité Statique )

DE Vermeidung von Elektrostatischer Entladung (ESD)

Azioni preventive contro le scariche elettrostatiche (esd) sui Dispositivi Sensibili Elettrostaticamente (ESD)

HANDLING THE OPTICAL PICKUP

SYSTEM CIRCUIT DIAGRAM

Y/C BLOCK DIAGRAM

Hi-Fi BLOCK DIAGRAM

A/V CIRCUIT DIAGRAM

MAIN Hi-Fi CIRCUIT DIAGRAM

SCART (JACK) CIRCUIT DIAGRAM

TU/IF, NICAM & A2 CIRCUIT DIAGRAM

TIMER CIRCUIT DIAGRAM*

MAIN SERVO

MAIN DVD AUDIO

POSITION DRAWING OF DECK MECHANISM

DISASSEMBLY AND ASSEMBLY OF DECK MECHANISM

Motor Assembly L/ D

Brake Assembly T

Base Assembly P4

Base Tension

DECK MECHANISM ADJUSTMENT

PROTECTION, MAINTENANCE AND CHECK OF VIDEO FUNCTION

DECK MECHANISM DISASSEMBLY