| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KP46V15 | NO PICTURE, REPLACED Q733 ON GREEN "C" BOARD | Unit had no picture and stadby light on front panelflashing. Suspected unit was in IK blanking. While troubleshooting unitdiscovered 3 volt IK pulse on video input to green C board. Blue and redvideo inputs had 1.5 volts pulse, normal. None of vide | ||
| Sony | KP46S55 | NO VIDEO OR AUDIO FROM TUNER, CRACKED M BOARD | The function of channel up/down is not working. Using direct access, it was possible to display a channel number, but there was only snow(no pix or sound). However, Video line input worked ok and this symptom was affect | ||
| Sony | KP41V15 | NO POWER DUE TO LEAKY D612 ON G BOARD | Unit would not turn on. Technician removed transformer T608, and check it. Because it was getting hot. However, this transformer has no problrem. I discovered there was 1 volt on pin 3 of IC602. | ||
| Sony | APMX4 | WHAT IS THE IMPEDANCE AND WATTAGE OF THE SPEAKERS | |||
| Sony | SPPA5000 | NO DISCONNECTION WITH B & K TELEPHONE ANALYZER | Answering machine will not disconnect with B & K telephoneanalyzer. The unit works fine with normal telephone line.We would like to have the information on VOX circuit. -HQ COMMENTS: This unit will not disconnect with the B&K telephoneanalyzer becaus | ||
| Sony | CMH333 | POOR OR NO RECEPTION (CHECKS O.K. ON TESTER) | Customer complains of poor or no reception. However unitchecks O.K. on cellular tester. It is due to poor antenna contact as whenthe unit is checked with cellular tester, the phone's antenna contact isout of the circuit and the external antenna terminal | ||
| Sony | CMH333 | NO AUDIO - GLUE RECEIVER LEAD TO COVER | No audio on ear piece. | ||
| Sony | GDM20SE1 | NO OPERATION, CENTER LIGHT ON, PWR SAVE BLINKING,Q511 FAILED | No operation, Has high voltage but no picture, center lightworks power saving light is blinking. | ||
| Sony | TCWR445 | NOISE WHEN UNIT IS TURNED OFF - REPL IC801 | IC801 defective/ when I turned the unit off, the motor keepsrunning. No display but voltage is present at the motor. | ||
| Sony | TAAV621 | NO SURROUND OUTPUT, SURROUND CHIP OVERHEATS - REPL IC304 | Unit had IC304 replaced from previous service. Found s/m pg17, incorrect indicating notch in corner of chip to be between pins 1 and64. Chip notch is between pins 48/49 as indicated on pg 23. | ||
| Sony | STRGX900ES | IN DOLBY SURR THE AUDIO FADES OUT AFTER 1HR. - REPL IC301 | When in Dolby Surround mode the audio will fade out tosilence after approx. an hour of playing. Audio present if direct buttonpressed. | ||
| Sony | STRGX900ES | INT NOISY LEFT CHANNEL - REPL IC404 | Left speaker crackels intermittently. | ||
| Sony | STRGX900ES | STATIC SOUND LEFT CHANNEL - REPLACED IC401 | Static sound left channel | ||
| Sony | STRGX800ES | NO CENTER/FRONT OUTPUT - REPLACED OUTPUT DEVICES | Transistors output shorted, no audio. | ||
| Sony | STRGX47ES | LOW-VOL BUZZ BOTH CHLS AT MIN VOL - TIGHTEN GND ON MAIN PCB | Low-volume buzz both channels, even at minimum volume. Buzzsounds like data interference on audio line. |