Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
---|---|---|---|---|---|
Sony | KV13VM20 | CASSETTE STUCK, RE SOLDERED IC102 & 103 REPLACED FR1805 | Unit came with cassette stuck inside, 17 volts missing at PBT-3/pin 2, FR1805 was open due to loose connection at IC101.Also check IC102, 103. | ||
Sony | KV13VM20 | PICTURE DARK. COLOR QUALITY POOR, REPLACED DL-1202 | Picture displays chroma only, with no luminance. Found nosignal on IC-1501/pins 23 & 45. Composite video OK on connectorP-1503/pin 7. Ohmeter check of delay line manifested a short to ground. | ||
Sony | KV13VM20 | CHIRPING SOUND AT HIGH AC LINE LEVELS | Customer complained about a chirping sound at night when theset was turned off. Could not reproduce on counter and thought customerwas hearing normal chirp when AC is applied. Found when turning AC lineup to 125 VAC the unit would chirp every other se | ||
Sony | KV13VM20 | SHUT DOWN, REPLACED ZD1822 AND F1803 | The unit would start to oscillate and then immediatley shutdown. The problem was caused by ZD1822 shorting. Fuse 1803 on the 12volt line also opened. ZD1822 is over voltage protection for the 12 voltline. With the 12 v line inoperative, the feedback | ||
Sony | KV13VM20 | VERY DARK PICTUREE, OPEN G2 RESISTOR R1915 | Picture was very dark with just a little chroma showing through. Check G2 voltage at CRT and found R1915 is open. |