Dicas Reparação
Modelo - Chassis SPP57
Pesquisa: SPP57 Enviar Dica Resolvida
Resultados 29
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | SPP57 | NO CHARGE FUNCTION | Unit did not appear to have charge function. Found sub boardto be cracked by post behind green cable. Also applies to serial number89672. | ||
| Sony | SPP57 | NO POWER BASE | Base unit had no power. At first looked like D-15 wasshorted, only reading .22, but after further troubleshooting found C-61shorted with a solder splash. Also applies to serial number 10317. | ||
| Sony | SPP57 | NO TALK | Unit would not ring or talk. Verified handset to be fineand assumed problem in base. Tried to put base in test mode with no luck.Found X-5 cold soldered. Also pertains to serial number 27439. | ||
| Sony | SPP57 | NO POWER HANDSET | Handset did not have power. Troubleshooting found no reset onIC-501/pin 44. Also pertains to serial number 82634. | ||
| Sony | SPP57 | NO AUDIO ONTO HANDSET SPEAKER | Unit had no sound out of handset speaker. Speaker ohmed at500K Ohm. Also applies to serial number 31698. | ||
| Sony | SPP57 | NO RECEIVE IN HANDSET | Handset did not receive in either channel. Found neithercrystal to be vibrating so proceeded to check IC-601. IC-601/pins 1 and2 ohmed at 31K and seemed low. Also applies to serial numbers 241446 and62480. | ||
| Sony | SPP57 | NO TALK | Base wouldn't receive. This problem was caused by IC-2 beingdefective, therefore, preventing the RF signal from being demodulated andpassed to next stage. Voltages were low on IC-2/pins 1 and 2. Alsopertains to serial number 24919. | ||
| Sony | SPP57 | RANGE DEFECT | Unit had severe range distortion. B & K analyzer proved thattramsmit and receive were weak in handset. After further investigation, Ifound L-601 was cold soldered (could pull one lead out of board). Thisprevented RF signal from using the antenna for t | ||
| Sony | SPP57 | DISTORTED AUDIO | Unit had distorted audio and also a range problem. Tracedproblem to a cold solder L-602 which was not even through the board. Alsopertains to serial numbers 55764 and 24275. | ||
| Sony | SPP57 | POWER SURGE | Due to a power surge through the DC jack Q-15 and D-15 arebeing damaged (shorted). During this a trace is also beingoverdissipated, therefore, making the unit unrepairable to our standards.Also pertains to serial number 80410. | ||
| Sony | SPP57 | NO RING/NO TALK | Handset wouldn't communicate with base because X-2 which ischannel 1 was not vibrating. This can be diagnosed by checking pin 2 onIC-1 for proper frequency. Also pertains to serial number 82970. | ||
| Sony | SPP57 | NO TALK FUNCTION | ID code was distorted before being transmitted from thehandset because pins 1 and 2 of FC-801 were shorted. Pin 1 and 2 leadback to the microprocessor where the data out and mic mute originate. Thehandset would receive ID code fine. Also pertains to s | ||
| Sony | SPP57 | NO POWER HANDSET | The units locked up giving symptoms of no B+ and IC-502 wasdefective. IC501/ Pin 44 was grounded preventing voltage from beingapplied to Q-504 with the collector not allowing to reset circuit. | ||
| Sony | SPP57 | NO RING/NO TALK | The handset wouldn't communicate with the base because X-501is oscillating three times its regular speed (ex. 10.5mHz). Alsopertains to serial number 41026. |