Sony TV Repair: Common Faults and Solutions.
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Results: 20067
Results: 20067
Sony Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| SONY | KV1207 | No picture, see sb0200r | Found d064 leaky, this was replaced and 15 days later unitcame back and this time d063 was found to be leaky. ten days later unitcame back with d063 leaky again. each time the diode is replaced. | ||
| SONY | KV1206 | Looses memory, replaced d514 | This receiver had no memory. stations could be programmed,but would be lost as soon as channel was changed. inspection revealed thatic034/pin 7 was positive, -24v was missing. scope showed horiz. pulse on-24v line. further checking quickly revealed d51 | ||
| SONY | KV1200U | Intermittent color distortion, replaced c342 | Highly intermittent color-wrong colors-complete loss of color.drastic hue changes would occur faces would be all blue or all green.red would drop out completely, then chroma would degenerate into narrowrainbow lines, eventually resulting in absolute loss | ||
| SONY | KP5040 | Parts availability | Please investigate if the drive cords for the electromotivearms may be available as a separate part for replacement instead ofreplacing the complete arm assy which is so expensive. refer to page 29of service manual. -hq comments: the pipe side end of d | ||
| SONY | FD210 | Shifted picture, replaced yoke | Picture shifted up and slightly to the left. | ||
| SONY | XR77 | Replacement of q801 | The sound cuts off with a high level bass signal. | ||
| SONY | XO7 | New ic used | The above unit uses upd1703c517 p/n 8-759-100-18. thispart is listed on page 35 of the preliminary service manual. the lasts/m printed list this ic on page 96 as upd1703c522 p/n 8-759-100-59.do they have the same program? if not please inform kc to st | ||
| SONY | WMD6 | Defective fe coil | No control of speed, it is too fast on two stock units. | ||
| SONY | WM10 | Careful reassembly required | The spring was out of the grove on the auto shut offmechanism. after placing spring in grove and reassembling unit, it wouldnot shut off at end of tape. | ||
| SONY | WM10 | Shorted c805 | No power. a short across battery terminals occur whencapacitor (c805) is bent down on the pc board or when the leads arepushed into the body. | ||
| SONY | WM10 | Screw becomes loose | Screw on control plate block assy comes loose, touchingbottom side of flywheel. | ||
| SONY | WM10 | Gear needs bending | This unit had no take-up. gear #364 was not low enough toengage gear #368. | ||
| SONY | WM7 | Missing part number | The part number for the key switch board is not listed in the s/m. | ||
| SONY | WM7 | Replacement part needs modification | Membrane circuit board requires modifying from form in whichit is received for proper installation and working in machine (cutting ofmembrane). -hq comments: the circular foil path in the upper most right corner ofmembrane needs to be cut. | ||
| SONY | TCK777 | Defective r/p head | With music, poor low freq. response with audio sweep gen.,beat freq. from low end of response up to about 2khz only if sweep washigher than 12khz on the high end. | ||
| SONY | TCFX44 | Defective c505 | With the cassette door open and power applied, this deckwould go into play mode, although the play led was not lighted. | ||
| SONY | TCFX30 | Belt slipping | The customer complained that he intermittently could notopen the cassette door. this was due to the head assembly not completelydisengaging. we found that the belt would occasionally slip on thecapstan during the disengagement process. the belt appear | ||
| SONY | TCFX25 | Improper operation with tape | When using basf professional ii, c-90 cassettes, the tapewould skew upwards just past the leader splice, ruining the tape. thecustomer claimed all other brands worked fine, including the newlydesigned basf professional ii. | ||
| SONY | STRVX750 | Ic301 needed reset | Original complaint was that switched ac outlet on rear panel could not be turned off. | ||
| SONY | STRVX550 | Ground loop problem | Intermittently set would shut off all displays, or would losepreset stations, or sound would be muted until any one button was touched. -hq comments: ground loops can be difficult to isolate. we would haveprobably done the same using braid wire (solder |