Sony Repair Tips
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Results: 20077
Results: 20077
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| SONY |
SPPA40
|
Defective message display - resolder or replace ic301. | Defective message display. the #18 was appearing on messagedisplay. noticed several pins cold soldered on ic301. reflowed ic301 andunit fine. | ||
| SONY |
SPPA40
|
No power handset - replace x502, p/n 1-579-446-11. | No power in handset. x502 was not transmitting at 3.58 mhz,nor was it getting 1.3v on pin 40 or 1.6 volts on pin 41 of ic505. | ||
| SONY |
SPPA20
|
Takes first message, msg counter goes blank, won't answer | Unit receives the first message, then the message counter goesblank, and the unit will not answer further calls. traced the cause tothe spring that restores the lever that engages the white cam gear. itappears to have enough tension to overcome the sol | ||
| SONY |
SPPA20
|
No mech. motion - reseat wires of magnetic head. | A unit has been replaced with a good or new deck, still hasintermittent play, rew and ff function or error display. wires atmagnetic head (rec/pb/erase) are seated by the plastic cover of basekeyboard, and are too tight, interfering with the movement o | ||
| SONY |
SPPA20
|
No power handset - replace x502, p/n 1-579-446-11. | No oscillation or wave form (3.58mhz) at ic505/pins 41 and 40.i checked dc voltage at ic505/pin 41 = 1.6v and pin 40 = 1.3v. found x502crystal open. | ||
| SONY |
SPPA20
|
No dial tone (when switched pulse to tone at base in flash m | Will not switch pulse to tone mode in flash function. whenh/s is on. it works with ic3 part # uc1469 (base) not with uc1469a. inuc1469a, 2 pulses are missing at clock output ic3/pin 43, which goes toic301/pin3 and ic302/pin 3 of serial/parallel ics. t | ||
| SONY |
SPP75
|
Inadequate charging of handset battery | Units come in with complaint of short battery life, orincomplete charging. traced cause to poor connections between solder padson mic board and charging terminals. | ||
| SONY |
ITD250
|
Speaker phone cuts out - resolder c344 | When using speaker phone it would intermittently cut out. | ||
| SONY |
CMH333
|
No power - sw3 broken off board | No power. found sw3 broken off board, pulling up traces. | ||
| SONY |
CMH333
|
No power on battery - clean battery switch (j1 connector) | Can not turn the unit on with battery. | ||
| SONY |
GV200
|
No color on playback but, tv is ok/replace x701 | Will not playback in color only on tv and input mode is ok. | ||
| SONY |
GV200
|
Playback jumps on self rec. lp/replace drum assy | Unit will playback pre-recorded sp and lp with no prob. willplayback self-recorded sp with no prob. but will not playbackself-recorded lp. pix jumps. | ||
| SONY |
TCWR570
|
Contin. flshng pause light, no trnsprt cntrl - resolder t701 | When turned on, the unit flashed the pause light, and notransport functions were available. the +/-7v lines were within 10% ofspec. the micro had clock, reset, and the correct program number. noinputs were inhibiting operation. we replaced the micro t | ||
| SONY |
TCWR511
|
Contin. flashing pause light, no trnsprt ctrl - resolder t701 | When turned on, the unit flashed the pause light, and notransport functions were available. the +/-7v lines were within 10% ofspec. the micro had clock, reset, and the correct program number. noinputs were inhibiting operation. we replaced the micro t | ||
| SONY |
TCW411
|
Contin. flshng pause light, no trnsprt cntrl - resolder t701 | When turned on, the unit flashed the pause light, and notransport functions were available. the +/-7v lines were within 10% ofspec. the micro had clock, reset, and the correct program number. noinputs were inhibiting operation. we replaced the micro t | ||
| SONY |
TCW370
|
Contin. flashing pause light, no trnsprt ctrl - resolder t701 | When turned on, the unit flashed the pause light, and notransport functions were available. the +/-7v lines were within 10% ofspec. the micro had clock, reset, and the correct program number. noinputs were inhibiting operation. we replaced the micro t | ||
| SONY |
TCRX79ES
|
Loading problems, after replacement of capstan mtr - ref571 too tight | After replacement of capstan motor, unit fails to load. | ||
| SONY |
STRGX80ES
|
Noise is present when speakers are switched to b or a & b | Customer equipment is a jvc hrd725u vhs vcr. sony strgx80esspeakers a are at receiver. speakers b are at patio with 50 feet of wire.when speakers b or a&b are used, am radio station 1580 khz interferes withvhs hifi audio. vhs hifi l at 1.3, r at 1.7 m | ||
| SONY |
STRD790
|
No audio - cnj903 not connected | Further troubleshooting found that regulators ic971, ic972,and ic973 had no voltage. a visual inspection found that regulator boardconnector cnp903 loose or misconnected from main board connector cnj903. | ||
| SONY |
STRD611
|
Unit in protect - ic651 defective | This unit would go into protect as soon as it tried to comeon. all outputs checked ok. |