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Ottima qualità grafica e completo nelle notizie. Costo abbastanza contenuto.
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Great and quick support. The maual was exactly what I was looking for and my problem
solved. Many thanks.
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Very good service Within one day i received a pdf of the users manual and electric circuits so I was able to measure the different voltages in the printed circuit and find out the fault Payment was also reliable and easy.Without the manual i could not have repaired.So thanks to "Search for a manual"
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you are doing great job guys.....my father ask me to find out the schematics of Sony KV25R1D to sort out the problem ..(he was electrical technician, and excperianced with TV and simillar stuff). finally he found the cause and change all necessary parts....now he has got working old dog..and is very happy!!... thank you all.. NB..he also saved the repair cost.
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Perfect. Received my manual within 24 hours. Clear scan of the manual I needed. No problem.
Appendix. How to measure optical power
Optical power measurement is measuring actual optical power coming out from an object lens with LD turned on. thus, In order to measure optical power, LD should to be turned on and environment need to be dark enough. If necessary, Cover the top side of the sensor with black paper or hand when measuring. Generally, fluorecent light is about 50 µW, sun light is about 100 mW. so, If this is ignored, optical power setting may not be set correctly. Optical power mesurement procedure 1. Adjust optical power meter�s λ(wave length) to DVD. (Generally 650 nm) 2. Turn DVD LD on. 3. Place sensor less than 3mm apart from pick-up object lens, perpendicular to lens. Adjust position so that the center of object lens match to L mark on the sensor. 4. Read monitor�s value. (Read Maximum value as moving position slightly) (Check working unit. Unit should be mW. When LD is dead, µW or nW unit may not be read correctly.) 5. Multiply monitor�s value by 100, round off to the nearest integer, then write constant part. 6. Adjust optical power meter�s λ (wave length) to CD. (Generally 780 nm) 7. Turn CD LD on. 8. Repeat step 3~5 above.
L
Display Part
3-105
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