TV Repair: Common Faults and Solutions.
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Results: 87441
Results: 87441
Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| SONY | GEN-HFP | Accessibility of 1/2 vcc points | Accessibility of 1/2 vcc points on these models:d9, cdxr77, cdxr79, cdx7540, cdx7580. -solution the 1/2 vcc points on these models are as follows:model 1/2 vcc point location dc voltage----- ---------------------- | ||
| SONY | EDV9500 | Problem on new video head | After replacement head was installed, the rf envolope from onehead was very low. lapping head for 10 seconds restored proper operation. -hq comments: new video heads will sometimes have sharp edges, andwill pick up oxide from the tape surface. lapping | ||
| SONY | STRD2010 | Incorrect part number t-901 | Part number listed in the manual is incorrect. | ||
| SONY | KV27HSR10 | No picture, troubleshooting method | 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 | XR7070 | Correct part number for q325 | What is the correct generic and nine digit part number forq-325? the schematic calls for a 2sb-1132. however, in the parts list,it lists q325 as a 2sb-1175hfe. the transistor is a chip component, andthe only markings on it are ab. what part is suppos | ||
| SONY | SPP300 | No dial tone - q610, q611 | Unit will not work. | ||
| SONY | CCDF77 | Picture breaks up after warm-up | Picture breaks up after playing for a few minutes. if youspray component freezer on ic-201 picture comes back. | ||
| SONY | CCDF45 | Autofocus search to infinity | Autofocus searches to one direction and passes thefocusing point to infinity. | ||
| SONY | CVPG500 | Power supply failures | We seem to be experiencing many failures of the ps-2 board.these failures are centered around t1 and t2 as well as r24 and r03.we have not yet determined the cause of these failures.to tokyo: have you experienced any failures of this nature, if so have y | ||
| SONY | CCDF77 | Cannot perform battery down adjustment | Battery down adjustment could not be performed. founddefective ic-501. | ||
| SONY | EDV9500 | Dog unit from bubank | Unit wold loose color in que and review in bi mode. | ||
| SONY | CCDTR5 | Smearing video titles | Video titles for superimposing are smeared. they do notappear sharp and defined. | ||
| SONY | CCDM8U | Color bars in picture | Color bars in picture after recording. | ||
| SONY | KV2790R | Picture drifts out of color, replace r-242 | Picture drifts out of color and slightly off channel as setwarms up. set in use 2 - 3 years. | ||
| SONY | SLV575UC | No ctl | No auto-tracking lock. playback ctl pulse from pin 18 ic-402on the ma-62 board is missing. it should be a 5vpp square wave. thereason is pin 17 of ic-503 micro should go high closing the switch onic-401 pin 12. the switch is open. this is the second | ||
| SONY | STRAV910 | No sound from surround output | No sound from surround speakers. | ||
| SONY | TAN77ES | Part number for rubber foot on bottom of unit is missing | The number for the rubber foot is not in the service manual. -hq comments: the part number of the ring, foot ornamental is4-916-703-01.the part numbers of the front and rear feet are :front feet: 4-908- 888-01rear feet: 4-908-887-01a service bulletin wi | ||
| SONY | WMF701C | No power - nc-6wm rechargeable battery | Unit has no power. the internal nicad battery (nc-6wm) wasnot drawing any current. | ||
| SONY | SPP50 | No dial tone - q10 | No dial tone and buzzing sound. | ||
| SONY | TC818M | Wow and flutter on record | Wow and flutter on record. sometimes noticeable on playback. |