TV Repair: Common Faults and Solutions.
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Results: 87420
Results: 87420
Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| SONY | KV2091R | Dark picture, r1528 replaced | Pix darker than normal. checking video out of ic301 (cx20193)showed unusual symptom when changing picture level. video was clamping topeak white instead of black. when pix at min., screen light and washedout. found b+ to cx20193 8 volts - should be 9 | ||
| SONY | AVU270 | Unit stays in stand-by | Unit will not power up. | ||
| SONY | CDP310 | Chucking arm broken | When disc loaded for play, unit is very noisy. | ||
| SONY | CCDV8AFU | Dark camera picture | Dark camera picture when unit cold, after warm up unit played. | ||
| SONY | AVU270 | Surround sound level low on tv only | Only saw a noticeable level change when unit on tv surround.all other functions of surround sound good. | ||
| SONY | KV2786R | P in p height adjustment, no adjustment exist | When viewing a program which has lettering on the screen ontop or bottom, the picture on the main screen will be ok. but the p-pportion will cut off the lettering. is there a height adjustment whichcan be done only on the picture in picture section? - | ||
| SONY | D55 | Fm distortion | Customer (radio station general mgr.) complained that fmsounded fuzzy and distorted on this unit. verified problem by usingsoundtechnology st1000 generator. we observed waveform by going tostereo and l+r modulation. | ||
| SONY | CDP35 | Static in audio only when music is playing | Unit makes ticking sound at audio output only when music isplaying. in pause, ff or rev track jumps, all is quiet. unit set upperfectly. ticking sound was at same volume as information at output. | ||
| SONY | KPRM360 | Blown fuses - muted picture | The first time in the unit had a bad ic6008 and cp6005 andcp6006. now 3 weeks later just the fuses were open. because of theprevious problems i have had with the fuses in these circuits, i increasedthe fused from 0.8 amp to 1 amp. the shop will inform | ||
| SONY | KV1513 | Excessive hv - shut down | This unit had hv at 29kv. the unit would run for one halfhour to one hour, and then shut down. the fbt was found to have a brokenu clamp. | ||
| SONY | CFD5 | Error in schematic and/or block diagram | In blk diagram (page 25-26) ams ic is declared as ic103.schematic (page 69) calls it ic303 and then ic353 on chip block itself.both ic303 and ic353 are listed in parts list. what is correct p/n? | ||
| SONY | SL2710 | Slight horizontal jitter in top of picture | Unit displayed slight jitter in top of picture when playingpre-recorded tapes. self record ok. slowing down head drum with fingerimproved picture. drum free run adj. had no effect on jitter. replacingupper drum had no effect. | ||
| SONY | KV1972R | Radio interference, see sb ctv0288r | Picture remains free of interference but sound is picking upthe transmission. even with unit turned off, sound is still there.customer has an amateur radio station. | ||
| SONY | KV2782R | Crt cracked, replace d-505 and crt | Crt with neck cracked inside the yoke area. prior to connect-ing the chassis to new crt, the set was operated ok on the bench jig. hvmeasured 24kv. in second set, anode voltage measured 28 to 29kv. picturedisplayed severe pin cushion distortion. fou | ||
| SONY | GENERAL | Kcp parts | Due to design of 27 consoles, controls mounted on bezel.this necessitates pulling cabinets. my suggestion: make jig available tosubstitute controls saving labor to pull unit. -hq comments: crt jig is available now. please contact telematic (718-271-52 | ||
| SONY | XR70 | Incorrect ref. # - page 26; ref. #60 | Ref. number wrong. page 26 (ref. #60) is showing a cable(with connector). the cable (with connector) is ref. #751-555-488-00. -hq comments: we will issue a service bulletin. | ||
| SONY | CCDV110 | No viewfinder characters display | This unit had no character display in the viewfinder. thecharacter generator ic was found to be defective. the on tape characterswere ok. | ||
| SONY | KV2781R | Dead, replace r-555, d-557 and crt | The neck of the tube in this unit and a continuous arcing.this was the probable cause of the shorting of d557 and the opening ofr555. | ||
| SONY | FD45A | Manual correction, crt p/n 8736-853-05 | Part number in manual does not exist according to kansas city,part number listed is 8-736-853-01. should have been 8-736-853-05.this is a crt, ref # v901 listed on page 31. -hq comments: we sent information to japan, will issue a s/b about this. | ||
| SONY | WMF100 | One channel out on tape function | One channel had no output in one direction. |