| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | SPP1000 | NO DIAL IN TONE MODE, PULSE OK - REPLACE IC301, 875926390 | Base dials in pulse mode but not in tone mode. DTMF waspresent at IC301/pin 35, but no output from BTL. -SOLUTION : Replaced IC301. | ||
| Sony | SPP1000 | NO HANDSHAKE BETWEEN BASE AND HANDSET - RESOLDER CHARGE LED. | No lockup. Charge light doesn't come on although there ischarging voltage when handset is in cradle. Handset and base both pass intester. | ||
| Sony | SCT100 | NO CHARGE LIGHT, NO CODE EXCHANGE, RADIO OK. | Charge light did not come on. No code exchanged with handset. | ||
| Sony | SCT100 | UNIT WON'T HOLD CHARGE | Won't hold charge, check all functions. Handset wouldtransmit, but would not connect with base. Found handset's receiverdefective. | ||
| Sony | SCT100 | NO HANDSHAKE BETWEEN BASE AND HANDSET - RESOLDER R109 (BASE) | No handshake with handset. Base fail TX audio test. | ||
| Sony | SCT100 | NO RINGING, BUZZER - RESOLDER IC501 IN HAND KEY BOARD | Buzzer inoperative on handset. | ||
| Sony | SCT100 | HANDSET NOT MUTING - RESOLDER IC501/PIN 2 IN HANDSET | When talk button is pressed and when changing channels,distortion is heard. In handset, found IC301/pin 28 always high (+5V)never muting speaker. Traced back to IC501/pin 2 (speaker mute) anddiscovered it to be cold soldered. | ||
| Sony | SCT100 | NO LINE LED - RESOLDER D903 IN BASE | When handset and base connect line led D903 will not light.Found D903 cold soldered. | ||
| Sony | SCT100 | DEFECTIVE DISPLAY - REPLACE D710, P/N 1-810-027-11 | Some segments of display are dim or do not light. Foundproblem to be in display. -SOLUTION : Replace D710 | ||
| Sony | SCT100 | NO POWER BASE - REPLACE POWER BOARD, P/N 1-653-585-11 | Base has no power. Found T801 pushed thru board and traceslifted. | ||
| Sony | SCT100 | NO CODE FROM HANDSET - RESOLDER HANDSET MICRO IC501 | No handshake due to absence of code from handset. | ||
| Sony | ITID500 | NO OR INTERMITTENT POWER/DISPLAY - RESOLDER DC JACK. | No or intermittent power/display. This is due to the DC JackJ101 being either unsoldered or cold soldered. | ||
| Sony | ITID500 | MALFUNCTION OF TELEPHONE NUMBER DISPLAY | Unit either has a false date in the display, or sometimes itdoes not display the telephone number. | ||
| Sony | ITID500 | HANDSET WON'T HANG UP - REPLACE Q301, P/N 8-729-927-34 | Handset won't hang up. | ||
| Sony | ITD250 | UNIT DEAD - REPLACE C405, P/N 1-126-234-11 | Unit dead, B+ is grounded and positive battery terminal isgrounded too. Found C405 shorted. |