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El manual esta muy detallado, los numeros de partes y los esquemas de despiece son correctísimos y muy claros, tanto para los técnicos experimentados como para los novatos.
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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.
10. TROUBLESHOOTING
1. Intermittent display
START Y Is the Heat seal defective ? N Y Is the battery contact weak ? N Are there short circuit around the pins Y of the LSI (HC3009-01-F1) ? N Is the soldering weak ? Y N Replace the PCB ass'y Replace Clean and adjust pressure of contact Resolder Resolder
2. Erratic display
START Is the Heat seal defective ? N Is the LCD defective ? Y Y Replace Replace Check or replace the chip capacitors C4 ~ C8 Resolder
N N Are the voltage V0 ~ V4 OK ? Y Are there short circuit around the pins of the LSI (HC3009-01-F1) or between the 2 pins of Y the crystal oscillator (·1) ? N Are there short circuit around the pins of the RAM and ROM ? N Replace the PCB ass'y
Y
Resolder
� 20 �
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