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Modelo - Chassis KV27XBR65
Pesquisa: KV27XBR65 Enviar Dica Resolvida
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV27XBR65 | HOR. OUTPUT FAILURE, SEE SB 161R1 | Dead Hor. Output Q-503 failed. | ||
| Sony | KV27XBR65 | INTERMITTENT SHUT DOWN, REPLACED Q506 | Intermittent shut down. | ||
| Sony | KV27XBR65 | BARKHAUSEN OSCILLATION, RESOLDERED FBT CONNECTIONS | We received some reports of barkhausen oscillation which maybe intermittent in nature and sometimes signal strength dependent. Theproblem is caused by a poor ground connection on the focus block sectionof the flyback. | ||
| Sony | KV27XBR65 | NO COLOR FOR FIRST FEW MINUTES, REPLACED X-301 | Parent picture had no color for first few minutes and thenwould normalize. Child picture normal with color. Osciloscope showedgood chroma signal at IC-301/pin 5 (Chroma-In). When scoping 3.58 os-cillator (X-301), found it to be intermittent. | ||
| Sony | KV27XBR65 | INT. PIC SHRINKING, TROUBLE SHOOTING TIP FOR POWER SUPPLY | I have had several XBR sets with complaints of intermittentpicture shrinking. The solution was no regualtion of the B+ which waslowering under load. Here is a simple procedure that can be used whentrouble shooting this type of failure: Operate the set wi | ||
| Sony | KV27XBR65 | ANODE CONNECTOR MISSING ON NEW "A" BOARDS, SEE SB 108 | When replacing the A board, the anode wire from the flybackis missing. Is there a part number for it? -HQ COMMENTS: Please order part number 1-540-006-32, which is the AnodeCable. This was covered in Service Bulletin number 108. Future A Boardswill co | ||
| Sony | KV27XBR65 | IC-101 DOES NOT MATCH P/N IN MANUAL, 8-759-633-67, SB 092 | Above part number does not match with the part called for inthe service manual. -HQ COMMENTS: During production, the microprocessor was changed. Thesetwo ICs are not interchangeable. Please check to see what micro is beingused before ordering from KCP | ||
| Sony | KV27XBR65 | LOUD HIGH PITCHED SOUND FROM SET, APPLIED SILICONE (T-602) | Loud, high pitched noise from set, not emitting from the audiocircuit. Sounds similar to yoke with a squeling problem. Before replaingyoke please read. | ||
| Sony | KV27XBR65 | HORIZONTAL RGB LINES IN TOP PORTION OF PIX, SEE SB # 76 | Unit looks normal but, displays red, green and blue horizontallines on the top portion of the picture. Normally, adjusting the REFfunction in the service mode will shift the lines out of the picture area.However, in this case the shift was not enough. | ||
| Sony | KV27XBR65 | NO PICTURE SLEEP LIGHT ON, REPLACED C-500 | Set has high voltage. Sleep light is on, but set has nopicture. Found .7Vpp on IC-301/pin 31 (should be 2 volts). | ||
| Sony | KV27XBR65 | SHUTDOWN ON NO-SIGNAL STATIONS, READJUST THE HOR. FREQ. | If unit was switched from active station to active station,everything was ok. If you used CHANNEL UP or DOWN and went to a no-signalstation, unit would shutdown. | ||
| Sony | KV27XBR65 | RGB VERTICAL LINES TOP OF PICTURE, SEE TVP SB # 76 | Three to four retrace lines are visible at the top of thescreen. They do not look like ordinary retrace lines, but are of solidred, blue, or green colors. | ||
| Sony | KV27XBR65 | HORIZONTAL LINES IN PICTURE, REPLACED C-546 (IC-500/PIN 5) | Horizontal lines in picture sometimes on top sometimeson the bottom. Looks like retrace but in reality it is ringing. | ||
| Sony | KV27XBR65 | NO PICTURE, HOW TO TROUBLE SHOOT THE IK CIRCUIT | As you may have noticed, when servicing this and other unitsusing this particular IC-301, RGB lines at the IC level are blanked any-time the C board is disconnected. The main reason for this blanking isa cathode current detect line (IK). When the unit | ||
| Sony | KV27XBR65 | VERTICAL LINES ON BOTTOM OF SCREEN, REPLACED C-504 | I have now seen several models, ANU-1 chassis that exhibitwhat looks to be an odd type of retrace at the bottom of the screen.There may also be a few lines missing in the middle of the screen. It isunlike vertical problems I have seen in the past. The |