Dicas Reparação SONY
Modelo - Chassis
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV1913 | DEAD | This unit initially was found to have a shorted regulator,regulator driver and power module. After replacement we found the B+ tobe low, about 105V. We found neon NL601 in the power supply to be thecause. | ||
| Sony | KV1713 | SNOWY PICTURE | In the last 2 months the tuner was replaced three times,found C217 cap leaky. Pix would go to snow. | ||
| Sony | KV1510 | PART'S COMPATIBILITY | When subbing the 1-463-109-00 tuner with the 1-463-132-00,the channel indicator numbers go down when they should go up and viceversa. -HQ COMMENTS: Replace the original tuner. In addition you have to orderDIAL DRUMS from KV-1511: S/M Page 32, P/N 4-31 | ||
| Sony | KV1205 | INTERMITTENT SHUT DOWN, REPLACED Q509 | Found Q509 (HV Protect) breaking down. Replaced Q509. | ||
| Sony | FD210 | NO PICTURE, RESOLDERED C653 | This unit had no picture and received FM stations instead ofTV freq. A quick examination of the power supply revealed that the 14Vand 40V (tuning) lines were very low (6V). We found the connection onC653 to be poor. This is the coupling capacitor betw | ||
| Sony | VTX1000 | NO TUNING OPERATION | Would not tune any channels. VC voltage to tuner remainedhigh. No pulses out of the IC001. | ||
| Sony | KX2501 | INTERMITTENT SHUT DOWN, REPLACED HV BLOCK | Intermittent HV shutdown. | ||
| Sony | KX2501 | NO PICTURE, REPLACED IC1201. R668, AND R676 | This unit had a washed out picture with no control of pictureor volume. Also unit had no audio out. | ||
| Sony | KV2654R | SHUT DOWN, REPLACE Q501 AND Q502 | If set was turned on with 120VAC, horiz. output would shortout within 2 to 3 seconds. Removing collector B+ off horizontal outputI was able to bring set up to 120VAC and observe the driver output. Foundwaveform to be distorted, should look like a squar | ||
| Sony | KV2649RX | BAD RECEPTION ON CABLE | If the cable signal coming into the distribution amplifierbeing used by the dealer is disconnected and reconnected, the channels onthe KV-2649RX come back extremely detuned, and can only be received if youaccess another channel and the set is OK. -HQ CO | ||
| Sony | KV2649R | NO POWER AND TUNING OPERATION, SHORTED D021 ON MT BOARD | Unit could not be powered off nor any channels changed,display locked on channel 11, reception was normal. | ||
| Sony | KV2648R | BUZZ IN AUDIO, ADJ AFT AND SOUND IF | Buzz on some channels in audio. | ||
| Sony | KV2647R | JAIL BARS ON THE SCREEN | This unit had very faint jail bars on the left side ofpicture. D250 zener voltage - 13.21 volts. 12 volt line - 12.61 volts. | ||
| Sony | KV2644R | INTERMITTENT TIME DISPLAY, REPLACED NEON TUBE ND3051 | Time indicator display would go out intermittently. Found bytapping the neon tube when the set was cold, I could cause the problem tohappen. But after the set warmed up, could not produce the problem. | ||
| Sony | KV2643R | JAIL BARS ON THE SCREEN, REPLACED C539 | This unit had jail bars across the screen. |