Grundig DVD P7850 Silber Schematic
DVD Service Manual
Service
Manual
NUR FÜR INTERNEN GEBRAUCH
FOR INTERNAL USE ONLY
DVD-P 7850
GMM5400
Zusätzlich erforderliche Unterlagen für den Komplettservice
Additionally required Service Documents for the Complete Service
Sicherheit
Safety
Materialnr./Part No.
720108000001
Materialnummer / Part Number 720105418000
Änderungen vorbehalten / Subject to alteration
TCC 0109 MP • Prepared in Germany
http://www.grundig.com
GRUNDIG Service DVD-P 7850
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…1-10
Allgemeine Hinweise .....................................................................1-2
Technische Daten ..........................................................................1-4
Bedienhinweise .............................................................................1-5
Platinenabbildungen
und Schaltpläne .................................. 2-1…2-15
Blockschaltplan ..............................................................................2-1
Netzteil...........................................................................................2-1
Hauptplatte ....................................................................................2-3
– Spannungsversorgung ..............................................................2-5
– Prozessor ...................................................................................2-6
– DVD-Laufwerk ............................................................................2-8
– Analog........................................................................................2-9
– IN/OUT.....................................................................................2-11
Keyboard / USB / Card Reader ...................................................2-12
Display-Platte ..............................................................................2-14
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…1-10
General Notes ...............................................................................1-2
Technical Data ...............................................................................1-4
Operating Hints ..............................................................................1-8
Layout of the PCBs
and Circuit Diagrams ......................... 2-1…2-15
Block Circuit Diagram ....................................................................2-1
Power Supply .................................................................................2-1
Main Board ....................................................................................2-3
– Voltage Supply ..........................................................................2-5
– Processor...................................................................................2-6
– DVD Drive ..................................................................................2-8
– Analogue....................................................................................2-9
– IN/OUT.....................................................................................2-11
Keyboard / USB / Card Reader ...................................................2-12
Display Board ..............................................................................2-14
Explosionszeichnung
und Ersatzteilliste .......................................... 3-1
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
Bei den in den Schaltplänen angegebenen Messwerten handelt es
sich um Näherungswerte!
Exploded View
and Spare Parts List ...................................... 3-1
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
The measured values given in the circuit diagrams are approximates!
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GRUNDIG Service DVD-P 7850
Technische Daten
Disk-Format: ................ DVD, DVD+RW, DVD-RW, DVD+R, DVD-R,
Audio-CD (CD-DA)
CD-R / CD-RW (MP3, JPEG- / Picture-CD, VCD, S-VCD,
Audio/Video "MPEG4")
LCD-Display: ................................... 7” (16 : 9) Activ-Matrix LED Typ
Auflösung ................................................................ 480 (H) x 234 (V)
Leuchtdichte ..................................................................ca. 150cd/m2
Displayträgheit ................................................... ca. Tr 12ms, Tf 18ms
Blickwinkel .......................................................ca. 120° (H) / 100° (V)
Bildformat .............................................................................4:3, 16:9
Laser: ........................................................................Halbleiter-Laser
– Wellenlänge für DVD ............................................................650nm
– Wellenlänge für CD ..............................................................780nm
Video:
Format ...............................MPEG-2 (ISO / IEC – 13818), MPEG – 1
TV-Norm ..........................................................................PAL / NTSC
– PAL ......................................................................50Hz, 625 Zeilen
– NTSC ...................................................................60Hz, 525 Zeilen
Audio:: ..................................................................................... Stereo
Frequenzgang ...............................DVD: 48kHz Sampling: 4…22kHz
DVD: 96kHz Sampling: 4…44kHz
CD: 4…20kHz
Signal-Rauschabstand (bei 1kHz) ........................................ ca. 65dB
Dynamik (bei 1kHz) ..............................................................ca. 85dB
Gleichlauf...............................................................................≤ 0,01%
Anschlüsse:
Headphone ............................................................................ 2 x 32≤
Video (CVBS out/in) ................................1,0 Vss / 75≤, Sync negativ
Audio out/in .................................................................. 1,0Vss / 10k≤
USB ..................................................................................USB in 1.1
CARD reader .................................................................... SD / MMC
Power Adaptor:
Netzspannung ...............AC 100…240VAC ±10% (50/60Hz) Adapter
Nennleistungsaufnahme ..........................................9,6W (12V, 0,8A)
Akku:.......................................................................... 7,4V 1850mAh
Abmessungen L x H x B ..................................... 208 x 154 x 46mm
Gewicht: ............................................................... 800g (ohne Akku)
Technical Data
Disc Format:................. DVD, DVD+RW, DVD-RW, DVD+R, DVD-R,
Audio-CD (CD-DA)
CD-R / CD-RW (MP3, JPEG- / Picture-CD, VCD, S-VCD,
Audio/Video "MPEG4")
LCD Display: ................................ 7” (16 : 9) active-matrix LED type
Resolution............................................................... 480 (H) x 234 (V)
Brightness .....................................................................ca. 150cd/m2
Response time...................................................ca. Tr 12ms, Tf 18ms
Viewing angle ..................................................ca. 120° (H) / 100° (V)
Picture format .......................................................................4:3, 16:9
Laser: ................................................................ Semiconductor laser
– Wavelength for DVD ............................................................. 650nm
– Wavelength for CD ...............................................................780nm
Video:
Format ...............................MPEG-2 (ISO / IEC – 13818), MPEG – 1
TV Norm ..........................................................................PAL / NTSC
– PAL ........................................................................50Hz, 625 lines
– NTSC ..................................................................... 60Hz, 525 lines
Audio: ..................................................................................... Stereo
Frequency Response ....................DVD: 48kHz Sampling: 4…22kHz
DVD: 96kHz Sampling: 4…44kHz
CD: 4…20kHz
S/N ratio (at 1kHz) ................................................................ca. 65dB
Dynamic Range (at 1kHz) ....................................................ca. 85dB
Distortion ...............................................................................≤ 0.01%
Terminal:
Headphone ............................................................................ 2 x 32≤
Video (CVBS out/in) ............................. 1.0 Vpp / 75≤, Sync negative
Audio out/in ..................................................................1.0Vpp / 10k≤
USB ..................................................................................USB in 1.1
CARD reader .................................................................... SD / MMC
Power Adaptor:
Line Voltage ...................AC 100…240VAC ±10% (50/60Hz) Adapter
Power Consumption ................................................9.6W (12V, 0.8A)
Rechargeable battery: .............................................. 7.4V 1850mAh
Dimension L x H x W ........................................... 208 x 154 x 46mm
Weight: .................................................................800g (w/o battery)
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Bedienhinweise Dieses Kapitel enthält Auszüge aus der Bedienungsanleitung.
Weitergehende Informationen entnehmen Sie bitte der gerätespezifischen Bedienungsanleitung, deren Materialnummer Sie in der entsprechenden Ersatzteilliste finden.
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Operating Hints This chapter contains excerpts from the operating instructions.
For further particulars please refer to the appropriate user instructions the part number of which is indicated in the relevant spare parts list.
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GRUNDIG Service DVD-P 7850
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