Search: sony
Results: 20100
Make Model Symptom Problem Solution By
SONY KV2647R
No signal reception on chs 11 and 13, replace ic-002 Could not tune in chs 11 and 13. all other channels ok.
SONY KV2647R
Shut down, power module Power module causing high b+, shutting the set down. uponreplacing power module, noticed non-linearity in the bottom half of thepicture. top half of the picture was fine.
SONY KV2643R
Shut down, replaced d502 on a board Unit would shut down when the voltage of d502 dropped below4.8v. in the schematic pin 9 of ic501 shows 5v. proper voltage shouldread 5.8v. in turn d502 would read 5.6v. when the voltage at d502dropped to 4.8v, waveform was distorted and unit would sh
SONY KV2145R
White h band on the screen, r520 increased in value After ten minutes of operation, this receiver displayed aone-half inch white horizontal band at the top of the screen. verticalsize and linearity were not affected.
SONY KV2142R
Snowy picture, replace d2214, q2224, q2220 & uhf tuner Snowy picture on all channels except ch. 2. the reason youwould get a clear picture on ch. 2 is due to the low voltage used onch. 2 coming through the uhf tuner.
SONY KV1952R
Picture distortion, c544 open Set came in with narrow picture, pincushion distortion andvideo smearing. the 200 volt line measured about 140 volts.
SONY KV1948R
Vertical roll on weak signal ch., resoldered r581 Vertical roll on weak signal level. no problem on strongvideo signal.
SONY KV1547R
Vhf channel fade out After 30 min. to 1 hour of operation, low vhf channels fadeout.
SONY KP5040
Intermittent mechanical operation, poor ground connection Intermittent door opening. s953 on the motor: one side ofswitch was not tight due to no threads.
SONY KP5020
Poor focus after warm-up After warm-up, picture would go out of focus. found redpicture tube focus shorting inside tube. this caused blue and green togo out of focus, since all three tubes (focus) are connected to the sameblock.
SONY KX2501A
Beat pattern in the picture, re-routed cables p2 and p3 There was a beat pattern in the form of a 1 inch vertical lineabout 2 inches in from left side, on ch. 7 only. moving the ac cordwhere it was connected to the d board would increase or decrease theproblem.
SONY KV5200
Raster with retrace lines Set came in with all white raster with retrace lines. audiowas ok.
SONY KV2654R
Picture up/down button stuck, replace s004/005/006 Picture up button was stuck. therefore volume up/down andpicture up/down or channel up/down would not work. found picture upbutton was worn. this switch was spring loaded in rather than out.
SONY KV2649R
Dark picture, open r541 and shorted c531 Dark picture, slight retrace lines. no screen voltage tocrt g2.
SONY KV2647R
No color, replace ic-501 Picture was dark and also had loss of color. scoping ic501pin 15, horizontal sync pulse was only 6 vpp - should be 11vpp. i haveseen other sets that displayed intermittent dark picture or change of hueonly. all are related to ic501 sync output. the s
SONY KV2647R
Vertical bars on the screen This unit had several vertical bars on the left side.
SONY KV2647R
Mechanical damage, q601 lead Leads of q601 are breaking due to mechanical stress. duringmanufacture, the leads are being stretched tightly before soldering.as the heat sink flexes during shipping, the leads break.
SONY KV2643R
H flagging on the top of the screen, replaced ic501 This unit had slight horiz. flagging at the top of the picturewhen using the still/slow features on an sl-2700. all other modes (offair, cable) worked fine as did other betamax and vhs power supplys. the onlyproblem was with the still/slow features on the sl
SONY KV1952RS
Dark picture and retrace lines, shorted c548 and open r555 Dark pix-retrace lines very faint. no screen voltage tog-2 of crt.
SONY KV1945RS
Sound distortion, replaced leaky c116 Intermittent, uncontrollable sound. remote inoperative.indicator light on at all times. all manual functions worked fine exceptpix and sound.