Dicas Reparação SONY
Modelo - Chassis
Pesquisa: SONY Enviar Dica Resolvida
Resultados 18938
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KP53S25 AP | CRT | KP53S25 Serial 9002282 Unit has burned tubes caused by the word ""VIDEO"" is burned on the screen "" | This unit has 3 defective CRT's that have letter burns on them. All three tubes need replacement. | Muller |
| Sony | KP53V15 AP | CONVERGENCE | Unit has a pulsating red convergence . | Tracing the pulsating we find the output of IC506 has a pulsing on it that is coinciding to the pulsing on the screen. Unit has a defective IC506. | Muller |
| Sony | KP53V15 AP | CONVERGENCE | Sony KP53V15 AP chassis. This unit will not allow the customer convergence centering to function. Tech needs to know where the electronic centering takes place. | Electronic centering is accomplished by the customer using the remote. Serial data codes will instruct the bus decoder IC506 to change the D.C. offset voltage to IC551 on ""V board"" Defective IC551. "" | Muller |
| Sony | KPR46EXR1 5 AP | CONVERGENCE | KPR46EXR15 Unit has no control over the Red or blue Horizontal centering for the customers convergence adjustment. | Suggest the tech check the possibly that a problem on the ""A"" board IC506 may be causing the trouble. This IC controls both the horizontal and vertical centering of the red and blue CRT registrations. The Horizontal correction voltages are simply a DC voltage that is fed to the ""V"" board. The ""V"" board houses the IC's and drivers that will change the DC offset voltage that effects the Horizontal centering. However these circuits were operating correctly. It was determined that IC902 was running warmer than normal. Unit had defective IC902 CXA1268P the Wave generator was defective. "" | Muller |
| 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 source 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, 10K OHM, C719 CAPACITOR, ELECTROLYTIC 22NF/25V, R755 RESISTOR, 5MM JUMPER, 330 OHM. 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 .68 ohm resistor that must be used in the emitter of the horizontal output transistor. | Muller |