TV Repair: Common Faults and Solutions.
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Results: 87417
Results: 87417
Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| SONY | SL60 | I0321 recordings and no audio erase | Fuzzy recordings and no audio erase. | ||
| SONY | SL3030 | Take-up link sensor out of position | I could load tape manually and then unit would thread tape andoperate normally. found take-up link (#186 on page 9l of the manual, p/n3-684-119-01) sensor out of position, which caused unthread end signal notto be sent to micro. -hq comments: with new | ||
| SONY | SLHFR90 | Unit would not load tape | Unit would not load tape. | ||
| SONY | BMC220 | Intermittent dew light | Intermittent dew light. customer had brought the unit intofsc twice before the unit finally failed. | ||
| SONY | SL2300 | Power light stays on | Pushing of timer record button would cause power light to stay on and the tape would eject. | ||
| SONY | CFS3000 | No sound on both channels | Output to headphone is okay, but no output to speakers.i found 3 units with the same problem. | ||
| SONY | SL2700 | Capstan running too fast | The capstan was running too fast on this unit. all otherfunctions were ok. we found the fg1 input to the servo ic to be very low.the problem was caused by incorrect bias at the fg amp/ic306 p9, we foundc340 to be leaky. -hq comments: we received info. | ||
| SONY | SL2700 | Clogging video heads | Lately we have been seeing a large number of units comingthrough with dirty video heads. sometimes the symptom is in the form of aslight vertical jitter. other times it is a traditional snowy picture.cleaning resolves the problem for only a short time. | ||
| SONY | SL2710 | No beta hifi playback | This unit had no beta hi-fi playback. we found q002 to beopen on the af-2 board (9v pb switch). also changed was c002 as itappeared to be somewhat leaky. | ||
| SONY | KX2501 | Jail bars, replaced c1527 | Picture was slightly reduced in brightness and there werenumerous dark vertical bars across the raster, about one inch in width.i suspected some sort of oscillation in the horiz. output circuit,possibly caused by poor capacitor filter action. scoping tp | ||
| SONY | CFS5000 | No sound on tape playback | No sound on tape playback. other functions ok. ams seems towork. in play (with cassette in) ams solenoid occasionally kicks. | ||
| SONY | WMF8 | Buzzing noise | Buzzing noise through head phones in tape mode. | ||
| SONY | KV2670R | No brightness control, leaky d-301 | Unable to adjust brightness. found abl clamp diode d301reading 100Ω both directions (forward and reverse). | ||
| SONY | CDP101 | Sled goes to one end with power applied | With disc inserted for 2 to 3 seconds, it would eject disc. | ||
| SONY | TCFX510R | No record | This unit came in with no record function. rec led did notlight up because pin 35 of ic601 stayed low in rec mode. since this unitis old type, i ordered ic601 with the part #8-755-640-71. however the ici received from npc was a new type cx-564-072. | ||
| SONY | SLHF300 | Drifting rf switching position | This unit shows the same problem as sl-2300/2400 series. rfswitching in picture of t/n #b0060 modifies to correct the problem in2300/2400 series. do we have a similar solution for sl-hf300? drum drivecircuit q15-q20 in sl-hf300 appears to be very simi | ||
| SONY | KV1911 | Ringing on left side of screen | Ringing on left side of screen. | ||
| SONY | KV1961 | Vertical jitter only on ch 10 off the air | Vertical jitter. only on ch. 10 off the air. worked normalon cable. transmitter was approx. 10 miles from dealer. | ||
| SONY | HVA220 | Ac adapter no longer available | Customer purchased hvc-1000, ac adapter, cma-100. video is okbut audio was distorted. 800 # suggested him to purchase hva-220. | ||
| SONY | TCFX707R | No tape transport or int tape transport | No tape transport or int. tape transport. |