Grundig CDP 75 Service Manual

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Allgemeiner Teil / General SectionCDP 75 / CDP 110 1 - 2GRUNDIG Service Es gelten die Vorschriften und Sicherheitshin- weise gemŠ§ dem Service Manual "Sicherheit", Sach-Nummer 72010-800.00, sowie zusŠtzlich die eventuell abweichenden, landesspezifischen Vorschriften!The regulations and safety instructions shall be valid as provided by the "Safety" Service Manual, part number 72010-800.00, as well as the respective national deviations. Allgemeiner Teil Me§gerŠte / Me§mittel Beachten Sie bitte das GRUNDIG Me§technik-Programm, das Sie unter folgender Adresse erhalten: GRUNDIG electronics GmbH WŸrzburger Str. 150 D-90766 FŸrth/Bay Tel. 0911/703-0, Fax 0911/703-4479 General Section Test Equipment / Aids Please note the Grundig Catalog ÒTest and Measuring EquipmentÓ obtainable from: GRUNDIG electronics GmbH WŸrzburger Str. 150 D-90766 FŸrth/Bay Tel. 0911/703-0, Fax 0911/703-4479 D Inhaltsverzeichnis Seite Allgemeiner Teil ........................... 1 - 2 É 1 - 18 Me§gerŠte ................................................................................ 1 - 2 Technische Daten ...................................................................... 1 - 3 Servicehinweise ......................................................................... 1 - 3 Ausbauhinweise ......................................................................... 1 - 4 Bedienhinweise .......................................................................... 1 - 6 Servicetestprogramm ............................................................... 1 - 12 Fehlersuchdiagramm ............................................................... 1 - 15 SchaltplŠne und Druckplattenabbildungen ........... 2 - 1 É 2 - 14 Blockschaltbild ........................................................................... 2 - 1 Schaltplan Servo-Teil ................................................................. 2 - 3 Schaltplan Signalverarbeitung und NF ...................................... 2 - 5 Schaltplan Stromversorgung und Bedienteil ............................. 2 - 7 AbkŸrzungen der Signale .......................................................... 2 - 9 Platinenabbildung BestŸckungsseite ....................................... 2 - 11 Platinenabbildung Lštseite ...................................................... 2 - 13 Ersatzteillisten und Explosionszeichnung ..................... 3 - 1 É 3 - 5 Explosionszeichnung ................................................................. 3 - 1 Ersatzteilliste CDP 75 ................................................................ 3 - 2 Ersatzteilliste CDP 110 .............................................................. 3 - 4 GB Table of Contents Page General Section ............................ 1 - 2 É 1 - 22 Test Equipment .......................................................................... 1 - 2 Technical Data ........................................................................... 1 - 3 Service Hints ............................................................................. 1 - 3 Disassembly Instructions ........................................................... 1 - 4 Operating Hints .......................................................................... 1 - 9 Service Test Program .............................................................. 1 - 12 Fault Finding Guide ................................................................. 1 - 19 Circuit Diagrams and Layout of PCBs ............................ 2 - 1 É 2 - 14 Block Diagram ........................................................................... 2 - 1 Circuit Diagram Servo Part ........................................................ 2 - 3 Circuit Diagram Signal Processing Part and Audio Part ........... 2 - 5 Circuit Diagram Supply and Control .......................................... 2 - 7 Abbreviations of Signals ............................................................ 2 - 9 Layout of PCB Component Side .............................................. 2 - 11 Layout of PCB Solder Side ...................................................... 2 - 13 Spare Parts Lists and Exploded View ............................... 3 - 1 É 3 - 5 Exploded View ........................................................................... 3 - 1 Spare Parts List CDP 75 ........................................................... 3 - 2 Spare Parts List CDP 110 ......................................................... 3 - 4

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CDP 75 / CDP 110Allgemeiner Teil / General Section GRUNDIG Service1 - 3 Technical Data General Dimensions (WxHxD) ........................................... 132x29.9x158mm Weight without batteries ............................................................ 298g Shock resistance +X/-X direction ............................................................................ >5G +Y/-Y direction ............................................................................ >5G +Z/-Z direction ......................................................................... >3.5G Headphone out (measured with 16 W load) Max. output power (THD=10%) ............................. 2x5mW (+1/-2dB) Frequency response (no load) ...................... 20Hz-20kHz within 6dB S/N ratio (unw.) ..................................................... >80dB (85dB typ.) THD (1mW, 1kHz) .............................................. <0.2% (0.05% typ.) Channel crosstalk (1kHz, no load) ....................... >50dB (60dB typ.) Channel difference (-40dB) ...................................................... <5dB Power supply modes Ext. DC-in socket ................................................. 6.7V nom. (±0.3V) Battery 4xLR6 ...................................................................... 6V nom. Accu 4xNiCad ................................................................... 4.8V nom. Battery empty detection Battery weak level ............................................. 3.8V nom. (±200mV) Battery empty level ........................................... 3.4V nom. (±100mV) Current consumption (ext. DC=6.0V, w/o earphone) PLAY-mode ......................................................................... <200mA JUMP-mode ......................................................................... <470mA Stand-by ................................................................................ <40mA Current consumption (Battery=4.5V, w/o earphone) PLAY-mode ......................................................................... <230mA JUMP-mode ......................................................................... <500mA Stand-by .............................................................................. <250mA Battery Discharge time Battery 4xLR6 ............................................. >8 hours (12 hours typ.) Accu 4xNiCad ............................................ >3.5 hours (4 hours typ.) Charge circuit Charge time for 80% ....................................................... 3 hours typ. Charge current ............................................................. 200mA ±15% Laser Output power ........................................................ <5mW (3mW typ.) Wavelength ............................................................................. 780nm Technische Daten Allgemein Abmessungen (BxHxT) ........................................ 132x29,9x158mm Gewicht (ohne Batterien) ........................................................... 298g Sto§festigkeit +X/-X Richtung ........................................................................... >5G +Y/-Y Richtung ........................................................................... >5G +Z/-Z Richtung ......................................................................... >3,5G KopfhÅ¡rerausgang (gemessen bei 16 W Last) max. Ausgangsleistung (Klirrfak.=10%) ................ 2x5mW (+1/-2dB) Frequenzgang (ohne Last) ............................... 20Hz-20kHz bei 6dB S/N (ungew.) ......................................................... >80dB (85dB typ.) Klirrfaktor (1mW, 1kHz) ...................................... <0,2% (0,05% typ.) - bersprechen (1kHz, ohne Last) ......................... >50dB (60dB typ.) Kanalunterschied (-40dB) ......................................................... <5dB Stromversorgung Ext. DC-in Buchse ............................................... 6,7V nom. (±0,3V) 4xLR6 ................................................................................... 6V nom. Akku 4xNiCad ................................................................... 4,8V nom. Batterieanzeige Batterie schwach .............................................. 3,8V nom. (±200mV) Batterie leer ..................................................... 3,4V nom. (±100mV) Stromaufnahme (ext. DC=6,0V, ohne KopfhÅ¡rer) PLAY .................................................................................... <200mA Tracksprung ......................................................................... <470mA Stand-by ................................................................................ <40mA Stromaufnahme (Batterie=4,5V, ohne KopfhÅ¡rer) PLAY .................................................................................... <230mA Tracksprung ......................................................................... <500mA Stand-by .............................................................................. <250mA Entladezeit der Batterien 4xLR6 ............................................................... >8 Std. (12 Std. typ.) Akku 4xNiCad .................................................. >3,5 Std. (4 Std. typ.) Ladeschaltung Ladezeit fŸr 80% Ladung ................................................... 3 Std. typ. Ladestrom .................................................................... 200mA ±15% Laser Leistung ................................................................ <5mW (3mW typ.) WellenlÅ nge ............................................................................ 780nm Servicehinweise CD-Laufwerk Beim Ausbau des CD-Laufwerks mu§ nach Abziehen der Steck- verbindungen eine BŸroklammer Ÿber die Kontakte der Steck- verbindung1 (siehe Ausbau) gesteckt werden, um eine ZerstÅ¡rung der Laserdiode durch statische Aufladung zu vermeiden. Wiedergabe bei abgenommenen GehÅ useoberteil Bei abgenommenen GehÅ useoberteil mu§ der Schalter 1430 kurzge- schlossen werde, damit das GerÅ t arbeitet. Achtung: Bei Betrieb mit geÅ¡ffnetem GehÅ use, Laservorschriften (siehe Service Manual "Sicherheit") beachten. Service Hints CD Mechanism When removing the CD mechanism a paper clip must be attached at the flexprint contacts 1 (see Disassembly Instructions) to avoid distroying the laser diode by electrostatic charges. Playback with removed Cabinet Top With removed cabinet top switch 1430 must be shorted so that it is possible to operate the set. Attention: Take care of the Laser Safety Instructions (see Service Manual "Safety") when operating the set with opened cabinet.