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 | STRVX6 | Leaky p405 | Ones digit of the display always shows 0 or 8. checkedthe waveform at pin 18 of ic401 (u-com) of this unit and the good unit(s/n 804552) as shown below. | ||
| SONY | STRVX4 | Replacement transistors fail | The 2sc-1826 or 2sc-1986 is used as a regulator in the abovelisted models. when these parts fail and the part 8-729-398-62 is orderedthe part is subbed to a 2sc-2768. -hq comments: 2sc1986 (8-729-398-62) does not sub into a 2sc2768 atkcp. however the | ||
| SONY | STRV45 | Defective q310 | Hum comes and goes. | ||
| SONY | STP7 | Defective ic603 and fd701 | This unit would not tune or display the proper characters.we found the upc and display to be defective. | ||
| SONY | SRF70W | Defective tuning cap | When tuning to high end am at one point about 1000 khz, amwould sound like it shut off. | ||
| SONY | PSLX5 | Intermittent switch | The tone arm would go into 45 disc position instead of droppoint for 33 size. only at first cycle, then no more failures. | ||
| SONY | ICFC55W | Open foil trace | Clock runs fast 8 minutes per hour. | ||
| SONY | HMK313 | Poor connection at r605 | No right channel output. found poor connection at r605. | ||
| SONY | FH7 | Worn driving gear | Upon investigation it appears that gear and fwd cam isstopping at an incorrect position allowing it to wear hub of driving gear. | ||
| SONY | CFS45 | Proper screws needed | Since the latest (metal type) carrying handle side pieces havebecome available, i have had difficulty finding a usable screw type whichthreads properly into the also new threaded holes in these parts. | ||
| SONY | CDP101 | Defective cnj36 | With disc in place transport would close but would also rejectit immediately. | ||
| SONY | CDP101 | Defective clock ckt | Intermittently when unit is first turned on disc motor wouldgo to full speed and stay there until power was turned off. | ||
| SONY | CDP101 | Red wire cut | After 15 to 30 min, the display will indicate 71 (scan 77.77)in stop mode. these functions also do not operate time, clear, open/close, reset. moving the wires to display pcb effected problem. | ||
| SONY | BM600 | Hold switch shorts pcb | When the safety hold switch is in its hold position,excessive current (almost short) is drawn from the batteries or externalpower power supply. foil shield (a) section 2-c is usually found to beshorting the solder connections of the function keypad assy. | ||
| SONY | WM4 | Battery contacts touch ckt | When batteries were installed the holder for battery contactgave way. contacts came in contact with motor mounting plate, causingbatteries to short momentarily when unit was moved or touched causingmotor speed fluctuation and noise in head phone. tappi | ||
| SONY | XM1 | Defective ic301 and ic102 | The oscillator and its associated amp were shorted on thisunit. naturally there was no pwm output and the sound was very low anddistorted. | ||
| SONY | TCFX66 | Loose chassis ground screw | User complained remote control (rm50) would only work after1-2 hour warm up. | ||
| SONY | TAYX7F | Volume increases | Dealer has 2 units out of box that would intermittently goto max volume after warm-up. this is a motorized volume control, and thedrive transistors for the motor have open circuits at the bases when thev/c is not being driven. | ||
| SONY | STRVX5 | Time constant of protection relay too long | The speaker relay delayed an excessive amount of time beforeopening its contacts at turn off. this created an occasional pop throughthe speaker. we determined that the time constant-associated withc718/r743 was too long. reducing c718 from 220 uf to 1 | ||
| SONY | PSX800 | Tonearm would drop | When the tonearm was going down, before the stylus touched therecord, the muting relay clicked and the tonearm dropped. |