Grundig V 21 Service Manual
This is the 12 pages manual for Grundig V 21 Service Manual.
Read or download the pdf for free. If you want to contribute, please upload pdfs to audioservicemanuals.wetransfer.com.
Extracted text from Grundig V 21 Service Manual (Ocr-read)
Page 1
Allgemeiner Teil / General SectionV 21 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 Digitalvoltmeter Beachten Sie bitte das GRUNDIG Me§technik-Programm, das Sie unter folgender Adresse erhalten: GRUNDIG Instruments Test- und Me§systeme GmbH WŸrzburger Str. 150, D-90766 FŸrth/Bay Tel. 0911/703-4118, Fax 0911/703-4130 General Section Test Equipment / Aids Digital voltmeter Please note the Grundig Catalog "Test and Measuring Equipment" obtainable from: GRUNDIG Instruments Test- und Me§systeme GmbH WŸrzburger Str. 150, D-90766 FŸrth/Bay Tel. 0911/703-4118, Fax 0911/703-4130 D Inhaltsverzeichnis Seite Allgemeiner Teil ............................ 1 - 2 É 1 - 6 Me§gerŠte / Me§mittel .............................................................. 1 - 2 Technische Daten ..................................................................... 1 - 2 Ausbauhinweise ........................................................................ 1 - 3 Bedienhinweise ......................................................................... 1 - 5 Abgleich ...................................................... 2 - 1 Platinenabbildungen und SchaltplŠne .......................... 3 - 1 É 3 - 10 Verdrahtungsplan ...................................................................... 3 - 1 Bauteilhinweise ......................................................................... 3 - 6 Schaltplan ................................................................................. 3 - 3 Druckplattenabbildungen .......................................................... 3 - 7 Ersatzteilliste und Explosionszeichnung ................... 4 - 1 É 4 - 2 GB Table of Contents Page General Section ............................. 1 - 2 É 1 - 7 Test Equipment / Aids ............................................................... 1 - 2 Specifications ............................................................................ 1 - 2 Disassembly Instructions .......................................................... 1 - 3 Operating Hints ......................................................................... 1 - 6 Adjustment Procedures ............................. 2 - 1 Layout of the PCBs and Circuit Diagrams .................. 3 - 1 É 3 - 10 Wiring Diagram ......................................................................... 3 - 1 Note of Components ................................................................. 3 - 6 Circuit Diagram ......................................................................... 3 - 3 Layout of PCBs ......................................................................... 3 - 7 Spare Parts List and Exploded View ............................... 4 - 1 É 4 - 2 Technische Daten Ausgangsleistung (acc. DIN 45500) Musikleistung 4W.............................................................. 2 x 95W Sinusleistung 4W.............................................................. 2 x 50W Sinusleistung 8W.............................................................. 2 x 40W Eingangsempfindlichkeit/Impedanz Line in ..................................................................... 180mV / 47kW Phono MM .............................................................. 1,8mV / 4,7kW Klirrfaktor Sinusleistung -1dB, 8W, 1kHz ..............................£ 0,01% GerŠuschspannungsabstand .................................................³ 94dB Leistungsbandbreite ............................................ < 10Hz É > 70kHz †bertragungsbereich Line in (-3dB) ................................................... < 10Hz É > 90kHz Phono MM ............................................................. 20Hz É 30kHz Stereo crosstalk 10kHz .......................................................... > 60dB DŠmpfungsfaktor 8W, 1kHz ........................................................³ 50 Spannungsversorgung Betriebsspannung ............................................................... 230V~ Frequenz .......................................................................... 50/60Hz max. Leistungsaufnahme .................................................. < 250W Leistungsaufnahme in Standby .......................................... ca. 1W Abmessungen und Gewicht B x H x T ........................................................ 435 x 125 x 300mm Gewicht .............................................................................. ca. 7kg Specifications Output power (acc. DIN 45500) Music 4W.......................................................................... 2 x 95W Nominal 4W...................................................................... 2 x 50W Nominal 8W...................................................................... 2 x 40W Input sensitivity / impedance Line in ..................................................................... 180mV / 47kW Phono MM .............................................................. 1.8mV / 4.7kW Distortion Nom. -1dB, 8W, 1kHz ...........................................£ 0.01% Signal-to-noise ratio ...............................................................³ 94dB Power bandwidth ................................................ < 10Hz É > 70kHz Frequency response Line in (-3dB) ................................................... < 10Hz É > 90kHz Phono MM ............................................................. 20Hz É 30kHz Stereo crosstalk 10kHz .......................................................... > 60dB Damping factor 8W, 1kHz ...........................................................³ 50 Power supply Voltage ................................................................................ 230V~ Frequency ........................................................................ 50/60Hz Max. power consumption .................................................. < 250W Standby power consumption ....................................... approx. 1W Dimensions & weight W x H x D ....................................................... 435 x 125 x 300mm Weight ......................................................................... approx. 7kg
Page 2
V 21Allgemeiner Teil / General Section GRUNDIG Service1 - 3 Ausbauhinweise 1. …ffnen des GehŠuses - Die 4 Schrauben A (Fig. 1) und die 2 Schrauben B (Fig. 2) herausschrauben. - Den Deckel abheben. 2. Ausbau der Frontplatte - Schraube C (Fig. 3) herausschrauben. - Die Rastung D der Netztaste ausrasten (Fig. 1). - Die 2 FŸ§e E (Fig. 3) abschrauben. - Die 3 Rastnasen F (Fig. 3) ausrasten. - Beim Zusammenbau auf richtigen Sitz des Steckverbinders G (Fig. 1) achten. 3. Ausbau der Hauptplatte - Frontplatte ausbauen (Pkt. 2). - Die 5 Schrauben H (Fig. 1) und die 7 Schrauben J (Fig. 2) herausschrauben. - Die Platte herausheben, dabei Steckverbinder nach Bedarf šffnen. 4. Ausbau der Trafoplatte - Die Rastung D der Netztaste ausrasten (Fig. 1). - Die 4 Schrauben K (Fig. 2) und die 5 Schrauben L (Fig. 3) herausschrauben. - Trafoplatte mit AC-Outlet-Platte herausheben, Steckverbinder nach Bedarf šffnen. Disassembly Instructions 1. Opening the Cabinet - Undo the 4 srews A (Fig. 1) and the 2 screws B (Fig. 2). - Remove the top of the cabinet. 2. Removing the Front Panel - Undo screw C (Fig. 3). - Disengage the mains button D (Fig. 1). - Undo 2 feet E (Fig. 3). - Disengage the 3 catches F (Fig. 1). - When mounting the board, look for the correct position of connector G (Fig. 1). 3. Removing the Main Board - Remove the Front Panel (para 2). - Undo the 5 screws H (Fig. 1) and the 7 screws J (Fig. 2). - The main board can now be removed. Open connectors if necessary. 4. Removing the Power Supply Board - Disengage the mains button D (Fig. 1). - Undo the 4 screws K (Fig. 2) and the 5 screws L (Fig. 3). - Remove Power Supply Board together with the AC Outlet Board, open connectors if necessary Fig. 1 Fig. 2 H H H A A B B D G J J K