Sony Repair Tips
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Results: 20100
Results: 20100
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| SONY |
IVOV11
|
Dead unit, replaced r543 | When power is switched on, green power light is on for 2-3seconds then it goes out and unit is dead. | ||
| SONY |
GDM20SE1
|
Arcing picture tube, q511 failure | Q511 failures have occurred due to crt arcing. | ||
| SONY |
CPD15SF1
|
Unit shuts down, center led blinks | Unit shuts down after power on and center led blinks. pin 3of cn515 has only -5v instead of -10v. found defective c617. there isa hole on top of that capacitor. | ||
| SONY |
CPD1425
|
Broken main board | Dead, main board broken near flyback transformer. damagecaused by hard plastic support bearing against weak spot on board.unit bumped in normal handling causes a break in main pcb. | ||
| SONY |
MHCC55
|
Mech jams - r504, r503 new values: r503 (180ohm),r504 (33k) | Unit would only let tray #1 out regardless of tray called for, and would jam when trying to put tray 1 back into called for tray slot. | ||
| SONY |
SLV940HF
|
Squeel noise when drum is rotating | Squeel noise is produced when the drum is rotating | ||
| SONY |
SLV780HF
|
Poor pic. due to misadjusted tape path - adjust entrance tg | Picture jitters and is distorted. | ||
| SONY |
SLV780HF
|
Squeel noise when drum is rotating | Squeel noise is produced when the drum is rotating | ||
| SONY |
SLV770HF
|
R132 wrong value on schematic and parts. | In the process of repairing unit located q132 defective but also measured r132 and found ti to be 390Ω. | ||
| SONY |
SLV740HF
|
Unusual mechanical motions due to timing | Self timing procedure not found in service manual | ||
| SONY |
SLV740HF
|
Does not load cassette - resoldered ic201 | Vcr powers up but cassette cannot be loaded. the cassette in/rec. proof switch was inproperly activated (opened) when cassette was inserted. microprocessor vital voltages were normal, yet, motor did not activate. | ||
| SONY |
SLV740HF
|
No record ctl, picture blanks out - resold pin13 of ic101 | Unit plays back pre recorded tapes but not it's own recording. checked record ctl missing at plug cn101, pin 3. checked pin 13 of ic for control signal, absent. signal present at pin 94 of ic201. pin 13 of ic101 | ||
| SONY |
SLV740HF
|
Squeel noise when drum is rotating | Squeel noise is produced when the drum is rotating | ||
| SONY |
SLV676
|
No rf output in sp/ep - replace ic2 on hf9 board | Missing head output in sp & ep looks like bad heads. | ||
| SONY |
SLV640HF
|
Squeel noise when drum is rotating | Squeel noise is produced when the drum is rotating | ||
| SONY |
KV32XBR70
|
Tuner takes too long to lock on channel, replaced d102 | The tuner took too long to lock on to the channel. found the h sync input to the cpu ic101/pin 21 to be only 3.8vpp. | ||
| SONY |
KV32XBR25
|
Shut down caused by ic-1401 | Unit shuts down, shorted ic-1401. | ||
| SONY |
KV29XBR85
|
Picture shrunk vertically,no memory, replaced d7009 | Set came in with picture reduced from top, keystoen shaped.enterend service modek, changed setting to bring pic back to noarmal .write settings to memory. set would function normally. removed power,problem re-appeared, new settings had not been retaine | ||
| SONY |
KV27XBR10
|
No raster or audio, replaced d251 on the x1 board | Blank screen accompanied by loss of audio measuremtnd dctaken with unit not functioning.ic301, p27 =.5v, p47=9v, p48=1.1v, p21=3.9v, p20=.2v, p24=2v p23=3.8vic500 p1=2v,p2=12.9v,p3=17v, p5= 1.5v, p6=12v, p4=17vq50v 3 =-17.7v, c=24.5v, b =17.3vd507 catho | ||
| SONY |
KV27V55
|
Distortioin on left channel, replaced d407 | Distortion on left channel, while looking for this problem ifound 2 diodes, d406 and d407, not listed in the service manual part listor the schematic. one of them shorted. |