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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
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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.
37GT-25IR
�PIF/AGC Adjustment
1. AFT Adjustment
AFT must be adjusted to a fixed value of 40.
�Screen Adjustment
3. Focus Adjustment 1. Apply mains voltage of 220V AC/50HZ to TV. 2. Receive Philips pattern signal to a level between
60 and 80 dBµV.
3. Set contrast to 10/10, brightness to 5/10 and
colour 0/10. 4. Adjust focus potentiometer to obtain maximum definition.
2. RF-AGC Cut-In Adjustment (I2C BUS) 1. Receive the «COLOUR BAR» signal (Channel E12). Signal strength: 53 dBµV.
4. G2 Adjustment 1. Apply mains voltage of 220V AC/50HZ to TV. 2. Receive the «MONOSCOPE» pattern signal to a
level between 60 and 80 dBµV.
2. Enter into Service Mode. 3. Push CH � until AGC appears on screen. 4.
Push key of R/C.Setting is made automatically. During this setting the colour bar shall go from red to yellow. When setting is finished, colour bar disappears and B-STOP (bus stop)is shown on screen.
3. Enter into Service Mode. Press the TEXT key of
R/C and set to level.
4. Set to the point where the raster disappears on
the screen VR of FBT.
5. Check BKGD. If it is necessary adjust BKGD
according to instructions detailed in the next page.
5. Switch set OFF and ON again, setting is now memorized.
�GEOMETRY ADJUSTMENT PROCEDURE
1. HOR SHIFT a) Receive Philips pattern signal. b) When � button is pressed, picture moves to the left. c) When � button is pressed, picture moves to the right. d) Adjust the horizontal location to obtain picture centering (Fig.1). 2. VERT SHIFT a) Receive Philips pattern signal. b) When � button is pressed, picture moves up. c) When � button is pressed, picture moves down. d) Adjust the vertical location to obtain picture centering (Fig.2). 3. VERT AM a) Receive Philips pattern signal. b) When � button is pressed, vertical size of picture increases. c) When � button is pressed, vertical size of picture decreases. d) Adjust the vertical size to obtain picture overscan (Fig.3). 4. VERT SLOP a) Receive Philips pattern signal. b) When � button is pressed, upper picture scanning decreases and lower picture scanning increases. c) When � button is pressed, upper picture scanning increases and lower picture scanning decreases. d) Adjust the vertical symmetry to obtain symmetrical scanning between upper and lower picture (Fig.4).
Fig. 4 Fig. 3 Fig. 2 Fig. 1
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