| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV2649RX | MISLANDING, REMOVED SHORT | When viewing pix at low brightness, the edges of the rasterappeared reddish in color. Inspection revealed slight distortion in redinput signal to video drivers. I found the output terminal on the AVboard had a lead shorting to the junction of R12 and R | ||
| Sony | KV2649R | NO VERTICAL DEFLECTION, REPLACE C508 | The set had two problems. No vertical deflection. Thewaveform at Pin 7, IC502 was pulsing, all the voltages were fine. FoundC508 had a 47uF instead of a 1uF that the manual calls for. The secondproblem was no high band. Found the UHF and VHF output | ||
| Sony | KV2145R | NO V DEFLECTION, REPLACE Q502/503 & R520/R555 | Vertical problem. | ||
| Sony | KV1961 | SPUTTERING OF THE AUDIO, REPLACED LAMP | On channel 7 only, you would hear a sputtering of the audio. | ||
| Sony | KV1952RX | DEAD, REPLACE HDT T501 | Unit came in dead, found horizontal output (2SD1938) shortedand fuse open. After replacing output transistor and fuse, foundincorrect waveform on horizontal drive transistor. Found HDT (T501) tobe defective. | ||
| Sony | KV1946R | INTERMITTENT SHUT DOWN, LEAKY D502 | Unit would shut down intermittently. | ||
| Sony | KV1924 | SPOT BURNING ON CRT | Set came in for a burnt spot center of screen (size about1/8 inch). Servicer replaced picture tube and after two months set camein again, same problem with new tube. | ||
| Sony | FD20A | NO PICTURE, REPLACED LEAKY C603 | No picture. | ||
| Sony | KX2501 | INTERMITTENT SHUT DOWN, REPLACE HVR BLOCK | Unit would shut down intermittently. | ||
| Sony | KV9200 | RETRACE LINES ON DARK SCREEN | This unit had retrace lines with brightness control turneddown. | ||
| Sony | KV5300 | TUNER ASSEMBLY TOUCHING FUSE HOLDER | Tuner assy touching fuse holder F601. Repaired six units withsame problem. | ||
| Sony | KV2675R | NO VIP, RESET PROCEDURE | Set snaps then VIP will not work, screen scrambled (1 end-user, 2 dealers). Also, IC104 (CX7958) will kill remote (another set).Snapping seems to come from pix tube. -HQ COMMENTS: As a first approach to the problem, please perform thefollowing reset pr | ||
| Sony | KV2670R | INCORRECT DISPLAY (AUX) ON THE SCREEN, USE KV-2675R REMOTE | On screen display the following display selections muting,sleep, channels were displayed but AUX. appeared also. This happenedwhile the dealer was demonstrating the KV-2670R and I was observing.End-user came in also and wanted to know how to get rid of | ||
| Sony | KV2670R | UNIT WILL NOT SHUT OFF, "A" BOARD IC-103 REPLACED | Unit will not shut off. | ||
| Sony | KV2648R | NO PICTURE NOR SOUND, RESOLDER INSIDE PRESCALER(BTP981) | No picture nor sound, snow, VC control not working (0 volts). |