GrundigLM 维修电路图、原理图.pdf

TVServiceManual Zustzlich erforderliche Unterlagen fr den Komplettservice Additionally required Service Documents for the Complete Service Service Manual Sicherheit Safety Materialnr./Part No. 720108000001 Chassis LM Cinaro 26 LXW 68-6612 REF GBE8900 Cinaro 32 LXW 82-6612 REF GBE8800 Lenaro 27 LXW 70-7731 IDTVGBF5400/GBF6900 LXW 70-8630 IDTV GBD7400/GBF1900 Lenaro 32 LXW 82-7615 Top GBF1400 LXW 82-7731 IDTVGBF5800/GBF6800 LXW 82-8630 IDTV GBD7500/GBF2000 Sedance 26 LXW 68-6610 Top GBF1500 Sedance 32 LXW 82-6610 Top GBF1100 32 LXW 82-8600 DL GBF7300 NUR FR INTERNEN GEBRAUCH FOR INTERNAL USE ONLY Materialnummer / Part Number 720100513000 nderungen vorbehalten / Subject to alteration TCC 1106 MP Prepared in Germany GRUNDIG Service Chassis LM 1 - Table of Contents Page General Section . 31-16 General Notes .1-3 Product and Display Variants .1-3 Technical Data .1-4 Operating Hints .1-11 Service and Special Functions .1-14 Layout of the PCBs and Circuit Diagrams . 2-12-30 Power Switch Board .2-1 Keyboard Control Units.2-1 IR/LED Boards.2-1 Socket Boards .2-2 Headphone Boards.2-3 Main Board .2-3 Overview .2-3 Layout of the PCB .2-4 Power Supply .2-12 Processor.2-14 Tuner .2-15 PIP Tuner .2-16 IN/OUT 1.2-17 IN/OUT 2.2-18 Audio Input Select Switch .2-19 Amplifier .2-20 VCT .2-21 FRC .2-22 Scaler.2-23 IDTV Overview .2-25 IDTV Power Supply .2-25 IDTV DVB-T Tuner .2-26 IDTV MPEG/Audio Video (STi5517) .2-27 IDTV Memory (STi5517) .2-28 IDTV PIO (STi5517).2-29 IDTV IN/OUT .2-29 IDTV Common Interface .2-30 Spare Parts Lists . 3-13-13 Inhaltsverzeichnis Seite Allgemeiner Teil . 1-31-16 Allgemeine Hinweise .1-3 Gerte- und Display-Varianten .1-3 Technische Daten .1-4 Bedienhinweise .1-8 Service- und Sonderfunktionen .1-14 Platinenabbildungen und Schaltplne . 2-12-30 Netzschalterplatte .2-1 Bedieneinheiten .2-1 IR/LED-Platten.2-1 Buchsenplatten .2-2 Kopfhrerplatte .2-3 Hauptplatte .2-3 bersicht .2-3 Platinenabbildungen .2-4 Netzteil .2-12 Prozessor .2-14 Tuner .2-15 PIP-Tuner .2-16 IN/OUT 1.2-17 IN/OUT 2.2-18 Audio-Eingangswahlschalter .2-19 Verstrker .2-20 VCT .2-21 FRC .2-22 Scaler.2-23 IDTV-bersicht .2-25 IDTV-Netzteil .2-25 IDTV DVB-T-Tuner .2-26 IDTV MPEG/Audio-Video (STi5517) .2-27 IDTV-Speicher (STi5517) .2-28 IDTV-PIO (STi5517) .2-29 IDTV-IN/OUT .2-29 IDTV Common Interface .2-30 Ersatzteillisten . 3-13-13 Es gelten die Vorschriften und Sicherheitshinweise ge- m dem Service Manual Sicherheit, Materialnummer 720108000001, sowie zustzlich die eventuell abwei- chenden, landesspezifischen Vorschriften! 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. GRUNDIG Service Chassis LM 1 - Gerte- und Display-Varianten Je nach Verfgbarkeit werden Displays verschiedener Hersteller eingebaut. Dies fhrt zu unterschied- lichen Chassis-Bestckungen, sowie zu nderungen in der Software. Bei Ersatzteilbestellungen und Software- Updates achten Sie bitte auf das ein- gebaute Display, sowie auf den Pro- duct Code. Angaben dazu finden Sie auf der Gerterckseite. Sollte in der Ersatzteilliste des Service Manuals Ihr Product Code oder Ihre Dis- play-Variante nicht aufgefhrt sein, knnen Sie eine aktualisierte Version auf dem GRUNDIG Service-Portal http:/service.grundig.de finden. berprfen Sie vor Austausch der Hauptplatte, ob die Aufkleber der Platinen identisch sind. Product and Display Variants 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 ver- sion at the GRUNDIG service portal http:/service.grundig.de. Before changing the main board please check whether the labels on the boards are identical. 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! Allgemeiner Teil Allgemeine Hinweise Vor dem ffnen des Gehuses den Netzstecker ziehen! Achtung: ESD-Vorschriften beachten Leitungsverlegung Bevor Sie die Leitungen und insbesondere die Masseleitungen lsen, muss die Leitungsverlegung zu den einzelnen Baugruppen beachtet werden. Nach erfolgter Reparatur ist es notwendig, die Leitungsfhrung wieder in den werkseitigen Zustand zu versetzen um evtl. sptere Ausflle oder Strungen zu vermeiden. Durchfhren von Messungen Bei Messungen mit dem Oszilloskop an Halbleitern sollten Sie nur Tastkpfe mit 10:1 - Teiler verwenden. Auerdem ist zu beachten, dass nach vorheriger Messung mit AC-Kopplung der Koppelkondensator des Oszilloskops aufgeladen sein kann. Durch die Entladung ber das Messobjekt knnen Bauteile beschdigt werden. Messwerte und Oszillogramme Bei den in den Schaltplnen und Oszillogrammen angegebenen Messwerten handelt es sich um Nherungswerte! Chassis LMGRUNDIG Service 1 - 4 Technische Daten / Technical Data Cinaro 26 LXW 68-6612 REFCinaro 32 LXW 82-6612 REFLenaro 27 LXW 70-7731 IDTVLenaro 27 LXW 70-8630 IDTVLenaro 32 LXW 82-7615 TOP Order No. Product Code Destination Approbations IM-Languages Remote control EAN visible Color DISPLAY Panel Display-Manufacturer 16:9 wide-screen format Response time Brightness Contrast ratio (Panel) Viewing angle ca. Physical display resolution max. pixel PICTURE Reference Plus Motion Compensation Motion Adaptive Deinterlacing Line Flicker Reduction Digital Color Transition Improv. (DCTI) Digital Combfilter Digital Luminance Transition Improv. (DLTI) Picture Noise Reduction (DNR) CCS (Clear Color Screen) Preset picture modes Aspect ratios (Format switching) Blackline detection PIP Multifold Tuner scan (Mosaic Picture) PAT: Split screen (PICTURE + TEXT) PAP: Double Window (PICTURE + PIC- TURE) 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 -Processor Scaler Keyboard ELECTRONIC Stand by indicator EPG (Electronic Programme Guide) Easy Dialog Megalogic Manual CHIMEI ca. 8ms ca. 500cd/m2 ca. 800:1 ca. 500cd/m2 ca. 800:1 176 vertical / horizontal WXGA 1366 x 768 170 vertical / horizontal WXGA 1366 x 768 ca. 550cd/m2 ca. 1.200:1 ca. 550cd/m2 ca. 1.200:1 176 vertical / horizontal WXGA 1366 x 768 176 vertical / horizontal WXGA 1366 x 768 AOU: ca. 500ms; Chimei: ca. 550ms AOU: ca. 800:1; CHIMEI: ca. 1.000:1 AOU: 170 vertical / horizontal; Chimei: 176 vertical / horizontal WXGA 1366 x 768 (2D) (2D) user, natural, rich, soft Auto WSS (HF + Scart), 4:3 / 16:9 / 14:9 / L.box / SubT / Panorama user, natural, rich, soft (2D) (2D) (2D) user, natural, rich, softuser, natural, rich, soft user, natural, rich, soft running change form 08.2006 onwards 1-Tuner PIP1-Tuner PIP via AV via AV 1-Tuner PIP running change form 08.2006 onwards 1-Tuner PIP 1-Tuner PIP via AV via AV via AV Zoom by Scan button Zoom by Scan button LMLM PLL frequency synthesizer tuning Zoom by Scan button Zoom by Scan button Zoom by Scan button LMLM LM VCT-I MSTAR VCT-I MSTAR 6 keys: menue, source, for programme, for volume 6 keys: menue, source, for programme, for volume red LED red LED VCT-I MSTAR VCT-I MSTAR 6 keys: menue, source, for programme, for volume 6 keys: menue, source, for programme, for volume VCT-I MSTAR 6 keys: menue, source, for programme, for volume blue LED blue LED blue LED stand-by 100 / (3 AV, SVHS, HDMI, PC, YUV) stand-by 100 / (3 AV, SVHS, HDMI, PC, YUV) stand-by 100 / (3 AV, SVHS, HDMI, PC, YUV) stand-by 100 / (3 AV, SVHS, HDMI, PC, YUV) stand-by 100 / (3 AV, SVHS, HDMI, PC, YUV) / / 12 pages / / 12 pages 26 languages, D, GB, F, I, E, P, NL, HR, RUS, GR, DK, S, FIN, N, TR, PL, CZ, SK, SLO, H, RO, BG, SER, HEB, ALB, MKD Simple hotel mode possible via service adjustment full automatic sortingfull automatic sorting / / 250 pages / / 12 pages / / 12 pages full automatic sortingfull automatic sorting full automatic sorting , NTSC M only via Scart , NTSC M only via Scart / / / / 2 wide band at the front side 2 wide band at the front side / / / / , NTSC M only via Scart / / 2 wide band at the front side 2 wide band at the front side 2 wide band at the front side 5 Band 5 Band 5 Band 5 Band 5 Band cinema, music, sport, speech, user 2 x 7 / 14W (nominal/music)2 x 7 / 14W (nominal/music) 2 x 7 / 14W (nominal/music)2 x 7 / 14W (nominal/music) 2 x 7 / 14W (nominal/music) Cinaro 26 LXW 68-6612 REFCinaro 32 LXW 82-6612 REFLenaro 27 LXW 70-7731 IDTVLenaro 27 LXW 70-8630 IDTVLenaro 32 LXW 82-7615 TOP DVB reception DVB-T/S/C German TV-Plattform conformance logo Automatic/manual channel search EPG (SI based) 7 Day Electronic Programme Guide now/next scheduled Extended 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