Sony Repair Tips
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Results: 20100
Results: 20100
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| SONY |
KP53V15
AP |
Convergence | Kp53v15 serial 9011915 unit was serviced by another service vendor. unit has a pulsating red convergence . | Tracing the pulsating we find the output of ic506 has a pulsing on it that is coincident to the pulsing on the screen. unit has a defective ic506 | Muller |
| SONY |
KP46V15
AP |
Convergence | Kp46v16. unit does not have control of red horizontal centering | Tech needs to look at the output of ic506(5) for the red horizontal centering. this ic is the bus decoder that decodes the data to 4 separate outputs. each output is for red h & v, b h & v centering. since the centering is fine for the b horizontal and poor for red it is suggested too replace the ic. new ic corrected the symptom. | Muller |
| SONY |
KP53XBR45
AP |
Control panel | Kp53xbr35 unit has symptom of when the volume up is activated the channel down is activated instead. all other buttons act normally on this analog string. tech did not check the other analog string which is where the ""menu, +, -, and display key. "" | There are two identical analog keyboard voltage dividers attached to the ksens0 & ksens1 lines to the microprocessor. the should act identical in operation. the switches that acts as the volume up was swapped with the menu key switch. the volume switch began working correctly and the menu stopped. the switch was replaced and now it works correctly. | Muller |
| SONY |
KP61V15
AP |
Arcing | Tv will turn on but the front panel led will continually blink on and off. unit gets high voltage but has a lot of arcing around the high voltage distribution block. unit does have sound and has vertical sweep. the chassis is heavily corroded due to the environment. unit is located next to an open window that receives ocean spray from the surf. | After closer inspection tech found the focus screen block assembly wires were falling off of the assembly. cleaning the connections with water and thoroughly drying the connections then resoldering them to the block assembly corrected the fault. | Muller |
| SONY |
KV32SR10
ANU-2 |
Raster | Kv32sr10 unit has dark raster with flaring across the picture. | Measuring the g2 voltage at 1000 vdc power supply for the g2 only finds 62 volts. r519 is open. replacing r519 a 2.2k resistor & d501. | Muller |
| SONY |
KP41EXR96
ANU-1 |
Dead | Sony anu-1 chassis. unit has defective horizontal output transistor | Apparently nothing else is damaged with this chassis. however if the horizontal output is shorted after several hours of operation. unit has defective horizontal driver transformer and driver transistor. leads on driver transformer show signs of oxidation | Muller |
| SONY |
KV27HSR10
ANU1 |
Raster | Unit has intermittent raster. bringing up the g2 voltage stops the intermittent action of the crt | Remove the following parts on the c-board. r754 resistor, 10kΩ, c719 capacitor, electrolytic 22nf/25v, r755 resistor, 5mm jumper, 330Ω. confirm and readjust the g2 for correct white balance. | Muller |
| SONY |
KV32XBR50
ANU1 |
No highvoltage | Sony kv32xbr50 . no high voltage,. has sound. tech claims all b+'s are normal from power supply however no high voltage. | B+ ok on horizontal output but not ok on horizontal driver. no b+ on driver. tech found small connection loose on primary connection of driver transformer. resoldered and restored normal operation. | Muller |
| SONY |
KV32XBR10
ANU1 |
No audio | Kv32xbr10 unit has no audio | Product has a defective mts audio controller part # 8-741592-2 (8-741-100-56) original number sbx1592-02 corrected the symptom | Muller |
| SONY |
KV32XBR51
ANU1 |
Intermittent raster | Kv32xbr51unit has intermittent symptom of no raster. has sound and high voltage. | Further visual checks in the television discover the filaments become dim intermittently. more visual inspection reveals many small ""ring"" fractures around the heater pins of the flyback transformer. "" | Muller |
| SONY |
KV27XBR15
ANU1 |
Dead | Sony kv27xbr15 anu-1 chassis unit is dead. unit had all 3 regulators loose. all had ring fractures. once resoldered the set still did not turn on because of a short to ground on the 135 vdc line. | Horizontal output is also shorted. ?this unit requires a modification to the horizontal output section kit # t-998-56641. this kit consists of a 2sc4927 and a .68Ω resistor that must be used in the emitter of the horizontal output transistor. | Muller |
| SONY |
KV32XBR10
ANU1 |
Audio | Unit has no audio | 8-741-592-2 (8-741-100-56) original number sbx1592-02 corrected the symptom | Muller |
| SONY |
KV27TS20
ANU |
Vertical | Kv27ts20 unit has highly intermittent vertical foldover mostly at the top of the screen | Unit had small ring fractures around the vertical deflection yoke connector pins on the chassis. resoldering the connections corrected the symptom | Muller |
| SONY |
KV32V26
AA3 |
Green retrace lines | Sony kv32v26 serial 8012582 goes to green retrace lines and then shuts down. when it comes back on again the unit will be in the video input mode. | The crt # is a80jyv51x . the cathode voltages at red and blue cathodes are 156 but the green cathode is 22. when the socket is disconnected the green cathode supply jumps to 153 vdc. the crt is defective. | Muller |
| SONY |
KV36XBR250
AA-2W |
Geometry | Kv36xbr250 this television has as symptom on the screen where a small area has a non linear horizontal area that causes the image to expand when the image passes through this area. the area about 1/2 inch wide and effect the entire frame of the picture. it can be seen if characters are scrolling through the screen. | Tech needs to replace the value of c553 from .33 @ 200 vdc to .47 @ 250 vdc part number 1-117-667-71. this improve the linearity in that are of the screen | Muller |
| SONY |
KV36XBR250
AA-2W |
16x9 mode | Customers dvd player always plays back in 16x9 mode. customer has jvc dvd player. disc plays back in 16:9 customer selects 4x3 mode on their dvd player but tv stills displays 16x9. the jvc dvd player puts out id signal even when no 16x9 is available. when the sony tv detects this special id signal it automatically puts the tv in to the 16x9 mode. compression mode. customer must now select modes manually on their dvd player. | This auto feature can be turned off but only in the service mode. replace id7 from 9 to 8. this is the no auto v. customer must now select modes manually on their dvd player. | Muller |
| SONY |
KV36XBR200
AA-2H |
Vertical sweep | Kv36xbr200 serial 9015396. unit has insufficient vertical sweep. also has top vertical foldover. tech can get into the menu and effectively move the vertical height and centering but it will not illuminate the foldover condition | Tech needs to replace ic561, d561, & c565 | Muller |
| SONY |
KV36XBR20 0
AA-2H |
Vertical | Unit has insufficient vertical sweep. also has top vertical foldover. tech can get into the menu and effectively move the vertical height and centering but it will not eliminate the foldover condition. | Tech needs to replace ic561, d561, & c565. unit had defective pump up capacitor. c565 | Muller |
| SONY |
KV36XBR200
AA-2H |
Screen temperature | Kv36xbr200 serial 9016329. on the far extreme left and right side of the screen the picture has a yellow color temperature where it should be white. | When looking at a blue raster at 60 ire the blue does not have uniform brightness across the screen. the light output is not the same level at the area of the screen where we see the yellow with a 60 ire white screen. we are not able to adjust the blue to make it equal in brightness in all areas of the screen.. this is a defective crt. customer does not want the set requesting a replacement. under 30 day | Muller |
| SONY |
KV36XBR200
AA-2H |
Geometry | Kv36xbr200. serial 9016768. "" unit has pincushion error o the top of screen. area around the extreme edges of the fields do not have straight lines. horizontal lines have a shoulder roll off. tech ordered yoke specific to bulletin # 387 , but received the complete crt. i held off replacing the crt due to three of these have been changed so far with no changes in the symptom "" | Bulletin 387 did not mention a thl plate which needed to be adjusted was in the old deflection yoke. after following the new bulletin 387r1 we were able converge the set. also the new tube needed 3 magnetic on the bell of the tube to correct a purity error and converge the lower right hand corner. | Muller |