| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV27TS22 | INTERMITTENT VIDEO BLANKING, REPLACE REG IC-601 | As the AC line voltage would fluctualte, the video wouldbecome blanked out in an area that would vary in size and shape. The135VDC line never increased over 117VDC. Note: The blanked portions ofthe video would take weird sizes and shapes. | ||
| Sony | KPR4600B | NO LAST CHANNEL MEMORY AT TURN ON, REPLACED Q-308 AND D-339 | No last channel memory at turn on. Also the set wouldintermittently come on with a de-tuned picture or possibly a weirdcombination of numbers in the channel display area. We noted the resetvoltage to pin 7, IC-001 on M board never got over 1.5VDC and a | ||
| Sony | WMAF62 | NO DISPLAY | No display. Tape worked. Radio had static on AM and FM, andVDD was at 0V. | ||
| Sony | WMAF62 | NO FM, STATIC | VCO was ok, AM was ok and stations would scan on display butnot lock in on FM. On known station you will get static. IC-101 allvoltages were ok. IC-001 pins 1, 2 and 4 were low. I had this problemthree times in three months. | ||
| Sony | KV32CX10 | PURITY, APERTURE GRILL CAME OFF, REPLACED CRT | Aperture broken lose. | ||
| Sony | KV27TS25 | POOR PICTURE, CRT | Measured low emission. | ||
| Sony | KV27TW70 | POOR PICTURE, LOW EMISSON CRT | Measured low emission. | ||
| Sony | KV19TR20 | ARCING, CRT | Internal arcing. | ||
| Sony | WMAF58 | PART NUMBER MISSING FOR BATTERY TUBE | There is no part number listed in the S/M for the BatteryTube. -HQ COMMENTS: Part number is 3-351-508-01. | ||
| Sony | WMAF54 | PART NUMBER MISSING FOR BATTERY TUBE | There is no part number in the S/M for the Battery Tube. -HQ COMMENTS: The part number is 3-351-508-01. | ||
| Sony | KPR4110 | NEW "E" BOARDS DEFECTIVE, -18V SHORTED, TOKYO HAS CORRECTED | Original E board had a hole burned in it. Customerpurchased a replacement board which did not work. Two other replacementswere tried. In each case the board had the -18VDC line shorted toground, via a jumper. By removing the jumper the set would come | ||
| Sony | KV32XBR70 | NO PICTURE, IK RELATED TROUBLESHOOTING TIP | As you may have noticed, when servicing this and other unitsusing this particular IC-301, RGB lines at the IC level are blanked any-time the C board is disconnected. The main reason for this blanking isa cathode current detect line (IK). When the unit | ||
| Sony | KV32XBR65 | NO PICTURE, TROUBLESHOOTING HINTS | As you may have noticed, when servicing this and other unitsusing this particular IC-301, RGB lines at the IC level are blanked any-time the C board is disconnected. The main reason for this blanking isa cathode current detect line (IK). When the unit | ||
| Sony | KV32XBR50 | NO PICTURE, TROUBLESHOOTING HINTS | As you may have noticed, when servicing this and other unitsusing this particular IC-301, RGB lines at the IC level are blanked any-time the C board is disconnected. The main reason for this blanking isa cathode current detect line (IK). When the unit | ||
| Sony | KV32XBR15 | NO PICTURE, TROUBLESHOOTING HINTS FOR IC-301 (IK LINE) | As you may have noticed, when servicing this and other unitsusing this particular IC-301, RGB lines at the IC level are blanked any-time the C board is disconnected. The main reason for this blanking isa cathode current detect line (IK). When the unit |