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muy buen manual completo de buena calidad de impresion preciso y detallado , muy útil para la reparación.
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The service manual is a good quality scan of the Panasonic NV-850, which is electrically identical to the Philips VR 6920, but mecanically just nearly.
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The service manual is a good quality scan of the Blaupunkt RTV-404, which is electrically and mecanically identical to the Panasonic NV-830.
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completo manual bien detallado y de buena calidad de impresion , se echa en falta los esquemas de placa y parte de algun diagrama.
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perfecto manual ,completo y detallado de muy buena calidad de impresion, ideal en una palabra.
1-5 Only DVD disc or only disc except DVD can be played
Trouble shooting chart
Only DVD disc, or only disc except DVD can be Played.
Go
Check the FFC connection between 24pin and the loader.
No
Check the loaded circuit
Yes
Check laser voltage (2.3V) output on Collector of Q2, if pin181 of U1is at low level.
No
Check the solder status on U1 and peripheral components
Yes
Check whether there is voltage variance on pin 182 of U1.
No
check if bad solder exist on U1 and peripheral components
Yes
Check whether pins of U1 and peripheral components are badly soldered, defected
No Replace the bad spare parts
Yes
Check Q2 whether in good condition
No
Correct connection
Yes
Change U1 or the loader.
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