TV Repair: Common Faults and Solutions.
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Results: 87427
Results: 87427
Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| SONY | SL250 | Service manual error | Page 77, area c-31, it is shown that cn401 on the sa-23 boardgoes to cn003 on the vt6 board. it actually goes to b001 on the vt6board. -hq comments: a service bulletin will be issued shortly with thecorrection. | ||
| SONY | WMAF64 | Auto-reverse not working | Unit will not operate in one or both directions. repair isdifficult. | ||
| SONY | WMF73 | Auto-reverse not working | Unit will not operate in one or both directions. repair isdifficult. | ||
| SONY | KV1714 | Part number c534 | P/n 1-108-962-00 is not on the computer. in the kv-1715r thedescription is .18, 107, 200v mylar. in the kv1714 manual it is listed asa polyethlene. the part number for .18, 200v mylar is 1-108-436-00. isit ok to use this capacitor. -hq comments: it | ||
| SONY | XR100 | Service manual supplement | Service manual supplement no. 1, march 84, has reference num-ber 326, wheel assembly, worm, labeled as number 320 on page 2, f-7.xr85 manual also has the same mislabeled no. 326 see page 38, f-7. xr100same mislabeling, see page 34, 65. -hq comments: t | ||
| SONY | XR85 | Service manual supplement | Service manual supplement no. 1, march 84, has reference num-ber 326, wheel assembly, worm, labeled as number 320 on page 2, f-7.xr85 manual also has the same mislabeled no. 326 see page 38, f-7. xr100same mislabeling, see page 34, 65. -hq comments: t | ||
| SONY | XR75 | Service manual supplement | Service manual supplement no. 1, march 84, has reference num-ber 326, wheel assembly, worm, labeled as number 320 on page 2, f-7.xr85 manual also has the same mislabeled no. 326 see page 38, f-7. xr100same mislabeling, see page 34, 65. -hq comments: t | ||
| SONY | CCDV4 | Stuck iris | No video in camera mode. iris is shut. | ||
| SONY | KPR36XBR | About two lines of fold over, replaced r-5175 | Fold over 1/3 from top of screen about 1 to 2 lines of fold-over. resistor r5175 changed value from 5k to 15k (bias resistor). | ||
| SONY | CCDV9 | Imager draws excessive current | Unit comes on with green screen and blows fuse. imagerdrawing excessive current. i have seen two units with this problem. | ||
| SONY | KV2095R | Receiver displayed severe pie-crusting (entire screen), c501 | Receiver displayed severe pie-crusting throughout entirescreen. scope shot revealed noise at pin 4, ic-301. | ||
| SONY | CDXA10 | E04 error message | Symptom of e-4 error message only when mounted in car. unitworked fine on bench. | ||
| SONY | ITM500 | Wall mounts | The wall mounts for these phones are listed under theaccessory and packing material as (case, tapestry). -hq comments: i was always intrigued by this description. thanks forputting this on an fpr. i am sure this question will surface again. | ||
| SONY | KV27HFR | No tuning (snow), replace 5v reg q-112 | Complaint of no tuning (snow) channel volume brightness etc.were operating 3 times faster than normal. | ||
| SONY | ITM300 | Wall mounts | The wall mounts for these phones are listed under theaccessory and packing material as (case, tapestry). -hq comments: i was always intrigued by this description. thanks forputting this on an fpr. i am sure this question will surface again. | ||
| SONY | SDP505ES | Audible hum | Audible hum with no input. found foreign matter between baseand collector of q301 (regulator). this was very elusive problem as humappeared to be caused by ground loop. | ||
| SONY | CDPC5F | Wrong disc position is selected | Unit intermittently selects preceeding disc position though adisc may not be in that position. for example, if a disc is in the #1position, #5 position may be selected. -hq comments: the following upgrade solves this problem: change r593 toa 33k and c | ||
| SONY | KV1370R | Intermittent turn on, replaced c115 | Unit would not turn on at times. this was very intermittent.some days it would turn on and other days it would not. if it would notturn on, you would have to leave set for several hours and then it mayturn on. the unit would not reset. found c115 cap | ||
| SONY | KV2792R | Weak volume, change r-842 value to 330 ohm | Everything checks normal. sub output, components confirmvoltages. volume was set to max with moderate level coming from thespeaker. | ||
| SONY | KV27DS1 | No remote operation, replace ic-001 | Unit would not operate with remote. measured 75mv p to psircs signal should be 5v p to p. |