Sony TV Repair: Common Faults and Solutions.
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Results: 20067
Results: 20067
Sony Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| SONY | KV1543R | Incorrect tuning operation, open ground d039/r055 | When set was turned on, it was locked into address position aand would not tune out of this position. any movement of m2 board wouldclear the problem. i then noticed the junction of d039 and r055 which aregrounded at a common point of the pc board, was | ||
| SONY | KV1513 | Dead | This unit kills this if ic after 3 days. replacing ic andinstalling a diode on the vcc of ic, figuring spike entering the part,with no luck. when ic was bad, no sound and picture just snow. voltageson agc pins are all wrong, but when new ic was put in | ||
| SONY | KV1204 | No raster, replaced flyback | No raster or lack of width with flashing lines. after setis on for about 10 to 15 minutes the flyback transformer became hot. part# 1-439-185-00. | ||
| SONY | KP5040 | Test signal interference, r3383 and r3384 connection change | I have two kp-5040s with cross-hatch interference on weaksignal stations - cures suggested in fprs have not helped. if i liftr3383 and r3384 from the 12 volt line and jump them to pin 2 of connectorba-9, and thereby remove voltage from the horizontal cr | ||
| SONY | KX2501 | High pitch squeal, replaced t654 | When the unit would warm up there was a high pitch squeal. | ||
| SONY | KX2501 | Intermittent horizontal sync, replaced ic501 | After set got warm about 5 minutes, pix would lose horizontalsync. cooling the ic501 would correct problem. | ||
| SONY | KX2501 | Poor picture, replaced ic103 | Customer complained of dim picture and excessive audio level. | ||
| SONY | KV9200 | Parts information missing | I need assistance with the above unit. it seems that thecircuit was modified or changed during production and this was not shownon the s/m or the two existing supplements. this particular set has adiode d402 and q410, q411 added to the base of q402. | ||
| SONY | KV2650R | Set would not get some channels, replace ic001 | Set would not get channels 2,3,7,8 on cable. changed ic001.set would then pick up missing channels, but was missing others. ic waschanged again and would pick up all but channel 13. set was delivered tohome and would receive all channels but 3. set r | ||
| SONY | KV2648R | Shut down, relay contacts | Set comes on and immediately shuts down with loss of b+.found relay contacts spaced too far apart. therefore there was no wipingaction to the contacts at all. i have also found this problem onnumerous other sets. | ||
| SONY | KV2648R | Dead, replace q602 and r616 | Set came in dead. found convertor q602 shorted and resistorr616 open. | ||
| SONY | KV2647R | Picture draw up and v jitter, c508 reversed | Picture would draw up from the bottom and vertical jitter. | ||
| SONY | KV2647R | Set on/off repeatedly, open r-143 | When ac cord is plugged in, the unit turns itself on and offrepeatedly. if the plug to socket labelled mf-5 was disconnected, theset stayed on and would not turn off at all. with this connector removed,there was no dc voltage at pin 21 of ic101 and yet | ||
| SONY | KV2145R | Shut down, leaky q881 | Set would shut off once or twice a week. problem wasisolated to hi-voltage shut down crt. found q881 leaky. with a newtransistor shut down voltage increased by 112v, changed dividerresistor for correct voltage. | ||
| SONY | KV1948R | Color distortion, color killer adj | While watching old b/w movies, the customer is unhappy withcolor confetti which flashes through picture. -hq comments: we were able to eliminate color confetti problem in ourlab set (kv1547r) by adjusting color killer level using the followingvoltage di | ||
| SONY | KV1946R | Incorrect tuning operation, open l508 | Tuning ok, but would not hold channels in memory. | ||
| SONY | KV1923 | Sound distortion, replaced ic cx760 | Sound becomes garbled as volume is increased. | ||
| SONY | KV1914 | Color distortion | New picture tube would go soft on one of the colors - firstwas the red, second time the blue. found filament voltage from theflyback incorrect. peak to peak was 30v s/b 22, also ringing. | ||
| SONY | KV1913 | Incorrect color | Incorrect color phasing. fsc had replaced crt (becausepicture was dark) with new crt installed the screen controls did notaffect the proper color stripe on the trinitron-red controlled green-green controlled blue and blue controlled red. with nysc colo | ||
| SONY | KV1747R | Incorrect tuning function | No vhf channels, only snow. uhf channels ok. |