TV Repair: Common Faults and Solutions.
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Results: 87440
Results: 87440
Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| SONY | KV2792R | -33v line incorrectly labeled | The schematic shows a -33v scan derived supply from pin 7 ofthe flyback. servicer claims actual voltage is closer to 100. double-checking supply to ic-102, pins 6 and 7, verifies that voltage at thosepoints is correct. also, set is operating normally. | ||
| SONY | CCDM8U | Drum speed fluctuates | Drum speed varied constantly. picture looks like it isbreathing. | ||
| SONY | KPR46CX10 | Part number for complete (h) board, not available | We need a part number for the complete h board on theseunits. it is very difficult to remove this board when pulling thechassis. the servicer could have this as a piece of test gear at the shopand would not need to pull this in the customer's home. th | ||
| SONY | KV32XBR50 | Power switch p/n not listed, 1-571-532-21 | The push button has too much travel distance and will causethe power switch to be pushed back. this will cause the back of theswitch to be pushed out. the part number for the switch is not yet listedon the system. please provide me with a switch so we | ||
| SONY | KV13TR24 | Inntermittent audio, speaker connection loose | Unit would intermittently lose audio. found speaker plug was not properly seated. | ||
| SONY | KV13TR20 | Intermittent audio, intermittent connection on "a" board | This unit had intermittent audio. found i-n wires having intermittent connection on a board. | ||
| SONY | WMAF50 | Intermittent distortion in left channel | When tape is playing, if the headphone jack is moved around,there will be an intermittent loud distortion in the left channel. | ||
| SONY | CDP390 | Ic-102 failing | Ic-102 fails and the unit will skip badly or will not play atall. the symptoms vary because the ic gets very hot and it may producemore problems. | ||
| SONY | SL300 | Different types of ic-802 | There are two types of ic used for ic-802. the part listedin the service manual is a s-8053alr, but some units have a pst529dinstalled. these two do not have the same pin-out arrangement. | ||
| SONY | KV27HFR | Dead, replace c-658 | 135vdc supply dead - no output at ic-651 and pin 12 was low.tried supplying 3v to pin 12 with external supply. noticed output at pin7 returned, but was in the mhz range. | ||
| SONY | CCDF30 | Unit will not play, rec, ff or rew | Found no capstan rotation at all. changed or tried all parts(capstan motor). i have seen cause this problem (ic-007, ic-006). stillthere is no capstan rotation on eject. | ||
| SONY | CCDF33 | Awb adjustment comments | After making all adjustments as per pages 212 and 213 of theservice manual, the white luminance dot shifts towards blue when the unitis taken out of the service mode and the c-14 filter is left on (unit setto awb). this is normal as long as the awb adju | ||
| SONY | CCDV101 | Carrying case for ccdv101 | What is the model number for the ccdv101 carrying case? | ||
| SONY | STRAV920 | Noise in audio at half to 3/4 volume | Hissing noise heard through speakers with no input signal athalf to 3/4 volume only. | ||
| SONY | SLVP30HF | Unit shuts down after a few seconds | Unit would play for a few seconds then shut down. | ||
| SONY | CCDV8AFU | Unit does not turn on with the power switch | The unit does not turn on with the camera power switch.capacitor c-731 on the 20 volt line of cp-9 board was shorted. | ||
| SONY | STR313 | Right side works so-so and ic gets hot | Original 8-759-301-25 replaced by 9-919-580-00. right channelworks with some static. the left channel is dead. ic gets very hot. itwas reported in july 90 that this replacement had problems in othermodels. we have tried this in this unit and an str- | ||
| SONY | CCDF55 | Dt-77 board is not in stock | The above part number for the dt-77 board is registered inrpc but there is no stock of this part. when will there be stock of thispart, our servicers need them? -hq comments: please order part number a-7068-174-a. | ||
| SONY | CFSW303 | No power by battery | Units will not power up by battery. this is due to the gluewhich holds the terminal in place covering the section of terminal whichcontacts the jumpers on the power board. | ||
| SONY | KV25XBR | Severe distortion - looks like extreme pincushion | Severe distortion on sides and center of picture. |