Grundig 22-6831T Vision 6 Schematic

TV Service Manual

Service Manual

Chassis T2

Vision 6

22-6831 T

Zusätzlich erforderliche Unterlagen für den Komplettservice Additionally required Service Documents for the Complete Service

Materialnummer / Part Number 720100542000 Änderungen vorbehalten / Subject to alteration TCC 0109 HH • Prepared in Germany http://www.grundig.com

GRUNDIG Service Chassis T2

Es gelten die Vorschriften und Sicherheitshinweise gemäß dem Service Manual "Sicherheit", Materialnummer 720108000001, sowie zusätzlich die eventuell abweichenden, landesspeziﬁschen Vorschriften!

Inhaltsverzeichnis

Seite

Allgemeiner Teil .................................. 1-2…1-21

Allgemeine Hinweise .....................................................................1-2

Ausbauhinweise ............................................................................1-3

Geräte- und Displayvarianten ........................................................1-4

Technische Daten ..........................................................................1-5

Bedienhinweise .............................................................................1-8

Service- und Sonderfunktionen ...................................................1-20

Platinenabbildungen

und Schaltpläne ..................................2-1…2-28

Chassisplatte YKU190R-1:

- Netzteil ........................................................................................2-1

- Eingänge .....................................................................................2-2

- Tuner ...........................................................................................2-5

- COFDM Demodulator..................................................................2-7

- Scaler ..........................................................................................2-8

- PCMCIA ....................................................................................2-14

- Audio Verstärker........................................................................2-15

- Leiterplatte.................................................................................2-16

Netzteil-/Inverterplatte XST194 ...................................................2-24

Bedienplatte YAS192 ..................................................................2-28

USB-Platte YKU197 ....................................................................2-28

The regulations and safety instructions shall be valid as provided by the "Safety" Service Manual, part number 720108000001, as well as the respective national deviations.

Table of Contents

Page

General Section .................................. 1-2…1-21

General Notes ...............................................................................1-2

Disassembling Hints ......................................................................1-3

Product and Display Variants ........................................................1-4

Technical Data...............................................................................1-5

Operating Hints............................................................................1-14

Service and Special Functions ....................................................1-20

Layout of the PCBs

and Circuit Diagrams ......................... 2-1…2-28

Chassis Board YKU190R-1:

- Power Supply ..............................................................................2-1

- Inputs...........................................................................................2-2

- Tuner ...........................................................................................2-5

- COFDM Demodulator..................................................................2-7

- Scaler ..........................................................................................2-8

- PCMCIA ....................................................................................2-14

- Audio Ampliﬁer ..........................................................................2-15

- PCB ...........................................................................................2-16

Power Supply/Inverter Board XST194.........................................2-24

Keyboard YAS192 .......................................................................2-28

USB Board YKU197 ....................................................................2-28

Ersatzteillisten ...................................... 3-1…3-3

Allgemeiner Teil

Allgemeine Hinweise

Vor dem Öffnen des Gehäuses den Netzstecker ziehen! Achtung: ESD-Vorschriften beachten Leitungsverlegung

Bevor Sie die Leitungen und insbesondere die Masseleitungen lösen, muss die Leitungsverlegung zu den einzelnen Baugruppen beachtet werden. Nach erfolgter Reparatur ist es notwendig, die Leitungsführung wieder in den werkseitigen Zustand zu versetzen um evtl. spätere Ausfälle oder Störungen zu vermeiden.

Durchführen von Messungen

Bei Messungen mit dem Oszilloskop an Halbleitern sollten Sie nur Tastköpfe mit 10:1 - Teiler verwenden. Außerdem ist zu beachten, dass nach vorheriger Messung mit AC-Kopplung der Koppelkondensator des Oszilloskops aufgeladen sein kann. Durch die Entladung über das Messobjekt können Bauteile beschädigt werden.

Messwerte und Oszillogramme

Bei den in den Schaltplänen und Oszillogrammen angegebenen Messwerten handelt es sich um Näherungswerte!

Kindersicherung

Mit der Master-Pin "1453" kann die Einstellung der persönlichen Pin geändert werden.

Hotel-Mode

Bei aktivierter Funktion ist die maximale Lautstärke begrenzt und das Menü "Installation" ist nicht mehr anwählbar. Aufruf: " i " –> "8500" –> 3 / 4 "OPTION 1" –> OK ( ) –> 3 / 4 "HOTEL" –> + "AVAIL". Maximale Lautstärke: " i " –> "8500" –> 3 / 4 "OPTION 1" –> OK ( ) –> 3 / 4 "HOTEL VOLUME" –> +/- Wert 0…63.

Spare Parts Lists .................................. 3-1…3-3

General Section

General Notes

Before opening the cabinet disconnect the mains plug! Attention: Observe the ESD safety regulations Wiring

Before disconnecting any leads and especially the earth connecting leads observe the way they are routed to the individual assemblies. On completion of the repairs the leads must be laid out as originally ﬁtted at the factory to avoid later failures or disturbances.

Carrying out Measurements

When making measurements on semi-conductors with an oscilloscope, ensure that the test probe is set to 10:1 dividing factor. If the previous measurement was made on AC input, please note that the coupling capacitor in the oscilloscope will be charged. Discharge via the item being checked can damage the components.

Measured Values and Oscillograms

The measured values given in the circuit diagrams and oscillograms are approximates!

Parental Control

The personal pin can be changed with master pin "1453".

Hotel Mode

Maximum volume is limited and there is no access to Menu "Channel Setup" at activated hotel mode. Call up: " i " –> "8500" –> 3 / 4 "OPTION 1" –> OK ( ) –> 3 / 4 "HOTEL" –> + "AVAIL". Maximum volume: " i " –> "8500" –> 3 / 4 "OPTION 1" –> OK ( ) –> 3 / 4 "HOTEL VOLUME" –> +/- Value 0…63.

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GRUNDIG Service Chassis T2

Aktivierten Hotel-Mode kurzzeitig ausschalten

Bei dieser Funktion ist der Hotel-Mode bis zum nächsten Ausschalten (Standby) des Gerätes deaktiviert. Aufruf: " i " –> "4658"

Ausbauhinweise

Rückwand abnehmen

- 2 Schrauben entfernen.

- Schraube

- 2 Rastnasen

- Rückwand nach oben klappen und abnehmen.

A im Gerätefuß (Fig. 1) herausschrauben und Fuß

B (Fig. 2) herausschrauben.

C (Fig. 2) ausrasten. D (Fig. 2) ausrasten. E (Fig. 2) ausrasten.

Switching off the activated Hotel Mode temporarily

At this function the activated hotel mode is deactivated until the set is switched off (standby). Call up: " i " –> "4658"

Disassembling Hints

Removing the Rear Cabinet

- Undo 2 screws stand.

- Undo screw

- Disengage 2 latches

- Fold up and remove the rear panel.

A ﬁtted in the stand (Fig. 1) and remove the

B (Fig. 2).

C (Fig. 2). D (Fig. 2). E (Fig. 2).

Fig. 1

D D

Fig. 2

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GRUNDIG Service Chassis T2

Geräte- und Display-Varianten

Display- und Product Code

Je nach Verfügbarkeit werden Displays verschiedener Hersteller eingebaut. Dies führt zu unterschiedlichen Chassis-Bestückungen, sowie zu Änderungen in der Software. Bei Ersatzteilbestellungen und Software-Updates achten Sie bitte auf das eingebaute Display, sowie auf den "Product Code". Angaben dazu finden Sie auf der Geräterückseite. Sollte in der Ersatzteilliste des Service Manuals Ihr "Product Code" oder Ihre Display-Variante nicht aufgeführt sein, können Sie eine aktualisierte Version auf dem GRUNDIG Service-Portal "http://service.grundig.de" ﬁnden.

Überprüfen Sie vor Austausch der Hauptplatte, ob die Aufkleber der Platinen identisch sind.

Product and Display Variants

Display- und Product Code

Depending on availability displays of different manufacturer are built in. This results in different chassis mountings as well as a different software. On spare parts orders as well as software updates take care of the ﬁtted display as well as of the "Product Code". Therefore you can ﬁnd information on the labels on the rear side. If your "Product Code" or display variant is not mentioned in the spare parts list of the service manual, please look for a current version at the GRUNDIG service portal "http://service.grundig.de".

Before changing the main board please check whether the labels on the boards are identical.

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Technische Daten / Technical Data

Order No. Product Code Destination Approbations IM-Languages Remote control EAN Color

Panel Wide-screen format Response time Brightness Contrast ratio (Panel) Dynamic contrast plus Viewing angle vertical / horizontal (ca.) Physical display resolution max. pixel PICTURE Motion Picture Improvement Motion Adaptive Deinterlacing Natural view HD Reference Full HD Line Flicker Reduction Digital Color Transition Improv. (DCTI) Digital Combfilter Digital Luminance Transition Improv. (DLTI) Picture Noise Reduction (DNR) Preset picture modes Aspect ratios (Format switching) Blackline detection PIP Multifold Tuner scan (Mosaic Picture) PAT: Split screen (PICTURE + TEXT) PAP: Double Window (PICTURE + PICTURE P2AT: Double Window + TXT POP: PICTURE on PICTURE Picture freezing Zoom with point function Auto 16:9 selection via Scart Sharpness control Blue Background CHASSIS TV-Chassis Progressive Tuner Scaler Keyboard ELECTRONIC Stand by indicator EPG (Electronic Programme Guide) Easy Dialog Megalogic Manual & autom. labeling of prog. Programmable off timer Programmable on timer Intelligent channel search (Zapping funct.) Programme Edit Intelligent Programme Switch Programme memory TV/AV (opt.) Teletext/Fasttext/Toptext Teletext options Childlock Menue languages OSD OSD-style Service mode Game mode Hotel mode TUNING Autom. Tuning System with country selection Frequency Based Auto Search Automatic Micro-search Automatic Programming Manual fine tuning Direct channel selection Direct frequency selection TV-Norm NTSC-Playback via Scart (3.58/4.43) Cable TV / Hyperband (S1-S41) AUDIO Mono/Stereo/Nicam AV Stereo Loudspeaker SRS Virtual Dolby Magic Fidelity Sound System Soundprojector Matched Sound Delay (Lip synchronous) Subwoofer Dynamic Bass DSP (Digital Sound Processor) Balance Adjustment AVL (Audio Volume Level) PIP listening via Headphone.jack Equalizer Space Sound Effect Audio mode Audio amplifier

DISPLAY

Vision 6 22-6831 T

G.BH 1322

V1A

All NSOs

D,GB,F,I,NL,DK,N,S,FIN,E,P,PL,CZ,H

22" / 56cm Active Matrix TFT-LC-Display

Auto (WSS), 4:3/14:9/16:9/Panorama/Cinema Zoom/Sky Top

PLL frequency synthesizer tuning

4 keys: +, programme/volume, - ,standby

min. 17 Languages: D,GB,F,I,E,NL,TR,DK,FIN,N,S,SI,PL,H,HR,CZ,SK

Presets (user changeable) for sound and picture in HDMI, Component and PC mode

Simple hotel mode possible via service adjustment

cinema, music, sport, speech, user

CE, I

TP 2 40 13833-61493 7 glossy black/silver

[

ca. 3ms

ca. 300cd/m2

ca. 1000:1

3.000:1

170° / 170°

WSXGA 1680 x 1050

3D DeInterlacer

\ \ [ [

[ [

user, natural, rich, soft

\ \ \ [ \ \ \ [ \ [ [ \

Sapphire

blue LED

\ \ \ [ [ [ [ [ \

99 / 7

[

/ [ /

[

100 pages

[

OEM-style

[

full automatic sorting

[ [ \ [ [ \

PAL/SECAM/BG/DK/I/L'/L

[ [

/ [ /

[

2 wide band at the front side

[

[ \ \ \ \ \ [ \ [ [ \

5 Band

[

2 x 3W (RMS)

Chassis T2GRUNDIG Service

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Chassis T2GRUNDIG Service

USB part Screen saver Supported menu languages Fast picture search Slow motion Still picture Picture by picture playback Repeat File browser File editing Upload from PC External HDD connection Supported files DVB reception Fully compliant to Autmatic/manual channel search EPG (SI based)

- 8 Day Electronic Programme Guide

- now/next

- scheduled

- Exdended Event Info

- Short Event Info TV/Radio programmes OSD languages Parental control Teletext VBI insertion VPS - VBI insertion Programme table Factory station list DVB-T Front end Tuner inputs (Hyperband) Input frequency (MHz) / Loop through Input level / Impedance Modulation FEC Hierarchical modulation Activ antenna support Embedded Conditional Access

Common Interface

Smart Card Reader Video Decoder MPEG profiles Data rate Resolution OSD colors Picture formats Audio Decoder Profiles AC 3 Decoding AC 3 Output Modes Processor CPU RAM (MB) Flash (MB) Software Service information processing DVB subtitling Over air download (OTA) Navigator API Last station memory Favourite mode Timer / Sleep timer Clock Volume Mute function Swap function POWER SUPPLY / CABINET Power voltage Range of regulation Power switch Integrated supply Plug-in AC adaptor Power consumption Cabinet (WxHxD, cm) / Weight FRONT PANEL CONNECTIONS HDMI Headphones Cinch-AV socket S-Video

Vision 6 22-6831 T

[

Supported TV languages

2x, 4x, 8x, 16x, 32x (forward and reverse)

1/2, 1/4, 1/8, 1/16 (forward and reverse)

1/2, 1/4, 1/8, 1/16 (forward)

Title, chapter, sequence A-B

Delete, splitting, playlist, multi delete (Title)

MP3, WAV, WMA, JPG, BMP, PNG, GIF, TIFF, 3GP, MOV, DivX (3,4,5,6x), MPG, AVI, MP4

EN 300 744 & revided NorGig II spec (regarding DVB-T front end performance)

ATS type sorting & LCN type sorting

20 Languages: D, GB,F,I,E,NL,TR,DK,FIN,N,S,SI,PL,H,RUS,RO,HR,CZ,SK,BG,SER

-80.0dBm to -20dBm (at 16 QAM 2/3) / 75Ω COFDM 2/8 QPSK 16/64 QAM

Depends on Terracom approval, implemented according to EN 50221 specification;

Other possible modules - not tested yet: Conax CAM 2.01, 3.03, 4.0 Eurocam - Viaccess V1.20, Professional made by Aston - Irdeto Ver 2.05 (CI),

SE 4.60 Ver 2.06 (CI) - Aston Crypt V 1.03, made by Aston - Nageravision 1.2 SCM 2.30 - Crypto Works by Philips - Alpha Crypt - NDS Video guard CI

Tested modul: Viaccess 1.4 red Label (Sweden);

4:3, 16:9, pan scan, letter box

Mono, Dual Mono, Stereo, Joint Stereo

230V, 50Hz; in accordance to IEC 65

, Tact switch, side - close to keyboard

51W, standby <1W in accordance to IEC 62087-2002

51.8 x 42.0 x 6.7cm (16.0cm with stand) / ca. 4.7kg

[

[ [

[ [ [

If broadcasted If broadcasted If broadcasted

400

[

, or decoding

PDC based

full automatic sorting

[

177 - 862 VHF & UHF /

1/2, 2/3, 3/4, 5/6, 7/8

\ [ \

MP@ML

Up to 15 Mbit/sec.

720 x 576

Fitting to TV-OSD

MPEG 2 layer I & II

SP/DIF

32MB 32MB

2MB

Dynamic PMT

[

DVB enhanced profile

via menu

from stand-by, as TV

4x free

\ \ \ [ [

140V - 265V

[ \

\ \ \ \

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GRUNDIG Service

Chassis T2

REAR PANEL CONNECTIONS Euro-AV-Socket AV1 Euro-AV Socket AV2 Euro-AV Socket AV3 S-Video Camera-AV Wireless YUV input / progressive PC-input PC-Audio in DVI HDMI HD ready including HDCP Common Interface Headphones Digital Audio out coaxial (SPDIF) Video out Audio out USB 2.0 Antenna for terrestrial reception DC-connector Power supply plug SUPPLIED ACCESSORIES Remote control (incl. battery) Power cord Instruction manual Wall fixture Warning sticker in rear panel Stand Warranty info Cleaning tissue Cables Circuit diagram

Vision 6 22-6831 T

Full wired

\ \

Hosiden

3x Cinch socket in

Video-in: 3 x Cinch, Audio-in: 2 x Cinch

1x Coaxial-socket for TV-tuner-in, according to DIN 45325

Prepared for VESA standard adaptor 100 x 100 + 100

WXGA

[ \

via HDMI

1 slot

\ [ \ \ [

\ [

TP 2

[

(non grounded)

[

tilting function

[ [ \ \

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Bedienhinweise Dieses Kapitel enthält Auszüge aus der Bedienungsanleitung. Weitergehende Informationen entnehmen Sie bitte der gerätespezifischen Bedienungsanleitung, die Sie unter

www.grundig.de, Menüpunkt Downloads/Bedienungsanleitungen herunterladen können.

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Chassis T2GRUNDIG Service