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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.
YH Adjustment (VR2 for vertical dynamic convergence) 1. Apply a crosshatch pattern. 2. Adjust contrast and brightness customer controls to obtain a correct picture. 3. With a driver Adjust VR2 (located in deflection yoke board Fig. 19) to obtain a proper corvergence at left and right side of the screen. (see Fig. 14)
Permalloy convergence corrector strip (part No. 0FMK014ZZ)
This strip is used in some sets to match the yoke and CRT for optimum convergence. If the yoke or CRT is replaced, the strip may not be required. First converge the set without the strip and observe the corners. If correction is needed: 1. Place strip between CRT and yoke, in quadrant needing correction. Slowly move it around for desired results. 2. Press adhesive tightly to the CRT and secure with tape.
DAF adjustment
Preparation: 1. Apply a crosshatch pattern. 2. Set user controls, bright to center and picture to max. 3. Connect a frequency counter to TPD10. Procedure: 1. Connect channel one of the oscilloscope with 100x1 probe to TPP33 (pin-1 T1551). 2. Connect channel two of the oscilloscope with 10x1 probe to CRT HEATER (L-Board). 3. Adjust �HDAFP� so both waves are in the same position. 4. Adjust �HDAFW� so TPP33 is 1.5 ± 0.5kVpp.
TPP33
G B&R G B&R
G B&R G B&R
Figure 14. VR2 Adjustment (YH)
XV Adjustment (precise adjustment)
1. Apply a crosshatch pattern. 2. Adjust contrast and brightness customer controls to obtain a correct picture. 3. With a driver adjust the coil located in deflection yoke board to obtain a proper convergence horizontally.
B&R G B&R G
HEATER PIN
B&R G B&R G
Figure 16. DAF adjustment
Figure 15. XV adjustment
Note:
Apply a red pattern and confirm purity, if purity is poor, repeat purity adjustments.
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