| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | ITA100 | DISTORTED PRPOGRAM OR DIAL TONE - REPLACE Q102 AND D113 | Distorted program or dial tone. Found Q102 and D113 defective. | ||
| Sony | ITA100 | NO ANSWERING MACHINE FUNCTION, NO AUDIO - REPLACE IC308 | No answering machine function and no audio. Found IC308/pin 17output defective. | ||
| Sony | ITA100 | LOW AUDIO ON TIME STAMP OUT LINE - REPLACE IC308 | Low audio from the time stamp through the speaker and out theline. | ||
| Sony | ITA100 | NO POWER - REPLACE IC303, P/N 8-759-267-52 | No power. Micro IC303 defective temperature higher thannormal | ||
| Sony | ITA100 | NO POWER - REPLACE IC304, P/N 8-759-260-72 | No power. Found voltage detect IC304 shorted. | ||
| Sony | ITA100 | NO ILLUMINATION ON POWER LED - RESEAT CONNECTOR CN301 | No illumination of power led LD502. CN301 connector was loose. | ||
| Sony | ITA100 | INTERMITTENT TELEPHONE LINE SEIZURE - RESEAT HSW101 | Intermittent telephone line seizure. Found Hook switch HSW101intermittent. | ||
| Sony | ITA100 | NO ANSWERING MACHINE FUNCTION, DEFECTIVE TIME STAMP | Cracked traced at DC in jack J301 (-) to JP488. | ||
| Sony | ITA100 | NO ERASE - REMOVE SOLDER SHORT ON ERASE HEAD HRPE301 | Unit would not erase messages. Found solder short to groundonto erase head HRPE301. | ||
| Sony | ITA100 | DAMAGED BUTTONS - RESEAT RUBBER KEY SWITCH (REF 8) | Rubber key switch was misaligned. -SOLUTION Reseated rubber key switch. | ||
| Sony | ITA100 | DEFECTIVE RECEIVER - REPLACE HANDSET | No dial tone heard in handset, mic is ok, found speaker insidereceiver defective, measured open. | ||
| Sony | ITA100 | INTERMITTENT MECHANICAL MOTION - RESOLDER MOTOR M301 | Intermittent mechanical motion. Found cold solder on motor(whitewire) M301. | ||
| Sony | ITA100 | NO RECORD (ICM, CONV, AND MEMO) - RESOLDER HRPE301 | Unit would not record. Found white wire on the tape head(HRPE301) cold soldered. | ||
| Sony | ITA100 | NO ERASE - REPLACE HEAD HRPE301, P/N 1-500-123-11 | Unit would not erase. Found head HRPE301 open. | ||
| Sony | ITA100 | UNIT PLAYS FAST - REPLACE DECK MECH (REF 51), P/N 155097911 | In the play mode, the head, record playback was notfunctioning properly (it stuck). |