Dicas Reparação
Modelo - Chassis KV20TR23
Pesquisa: KV20TR23 Enviar Dica Resolvida
Resultados 12
Pedir dica reparação
| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV20TR23 | NO PICTURE DUE TO CRT PROBLEM | The unit has no picture. No RGB signal comes form Y/C J IC, but Y and C signal into IC301(Y/C Jungle IC). However, I found bad IK signal returning from CRT, it is not IC problem. | ||
| Sony | KV20TR23 | UNIT DOESN'T HOLD MEMORY, RESOLDERED R065 | Unit would not hold adjustments in memory. | ||
| Sony | KV20TR23 | NO PICTURE AFTER SEC., REPLACED Q773 ON "C" BOARD | Unit comes up with bright blue screen with retrace lines.Found 8 v on the collector of Q751. After lifting the base of Q773, theline returned. | ||
| Sony | KV20TR23 | BLACK SCREEN, REPLACED CRT | No RGB output from IC301. P25=1.5v, P26=6.3v. P5(G2) ofV901 read 6v. When disconnecting the C board the G2 voltage wouldincrease to 800v. Also, Q309 and Q501 were not installed on the A board. -FOUND: Shorted G2, Replaced the CRT. HQ COMMENTS: Q30 | ||
| Sony | KV20TR23 | CHANNEL CHANGE BUT DISPLAY DOESN'T, RESET ID CODES | Everything worked but the channel display stayed on channel 9. Probing to see what might be happening we rewrote adjustment items 50,51, 52, 53, 54 as they checked and the set started operating correctly.Any explanation of why? -HQ COMMENTS: Adjustment | ||
| Sony | KV20TR23 | NO VERTICAL DEFLECTION, OPEN YOKE | No picture, line on CRT deflection yoke open (on verticalside). | ||
| Sony | KV20TR23 | PICTURE GRAINY, RESET ID CODE | Board was cracked around FBT. Replaced board and picturewas very grainy. Found NOTCH filter in setup set to (1). Tried to resetto 0 but would not hold in memory. | ||
| Sony | KV20TR23 | REMAINS IN STAND-BY MODE, REPLACED IC101 | No power when set first turns on. After a few minutes, powerrelay clicks on but no picture or sound. | ||
| Sony | KV20TR23 | CRT SERIAL NUMBER NEED FOR WARRANTY, SEE BELOW | Servicers are required to provide serial number of old CRT andto describe CRT defect, or warranty claim is rejected. The attachedsticker was removed from a defective CRT. The serial number used to beunder the bar code, but is no longer. ASD wants to k | ||
| Sony | KV20TR23 | INTERMITTENT GREEN PICTURE, REPLACED IC-301 | Complaint of picture turning green was corrected byreplacement of IC301. Component was isolated by monitoring the DC leveland signal components at pin 22, green output of the IC. After some time,a noticeable shift in the DC component was observed. Part w | ||
| Sony | KV20TR23 | INTERMITTENT PIN BOW, REPLACED R533 | Pincushion problem. 13V line drop to 6.7 volts. | ||
| Sony | KV20TR23 | INTERMITTENT SHORTED Q601, Q602, VDR602 COLD SOLDERED | Unit would intermittently short Q601, 602. |