Dicas Reparação
Modelo - Chassis ITA750
Pesquisa: ITA750 Enviar Dica Resolvida
Resultados 17
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | ITA750 | CAN'T PLAYBACK MESSAGES - CLEAN ICM PROTECT SWITCH S204 | Unit would not play back messages. Problem was caused by ashorted S204/ICM protect switch. When in off position, some debris insideswitch was keeping it on. Unit required a security code to playback. | ||
| Sony | ITA750 | PN FOR SWITCHES S10 AND S11 ON IC BOARD | Currently, switches are not available except as part of the ICboard.-HQ COMMENTS: Unfortunately these switches are not available separately asthe IC board has a relatively small number of components. | ||
| Sony | ITA750 | INCORRECT PART FOR REPLACEMENT OF BASE REEL ASSEMBLY | Replacement part being supplied from Kansas City is the wrongpart. Gear is missing and design of part seems very different from theoriginal. Should we remove parts from old assembly and either try to makeit work or get the correct part? This is a comm | ||
| Sony | ITA750 | DOES NOT ANSWER INCOMING MESSAGES | Will not answer incoming messages/noise over the line. Allother functions ok. | ||
| Sony | ITA750 | NO OFF HOOK DIAL IN UNIT | When receiver is off hook, unit will not dial out but whenusing speakerphone or on hook dial, unit works fine. Credit R. Kennedyalso. | ||
| Sony | ITA750 | NO OGM RECORD | Unit will not record OGM, but will playback a pre-recordedtape correctly. | ||
| Sony | ITA750 | EATS TAPES | Head panel not disengaging cleanly in tape mechanism causingit to eat tape. | ||
| Sony | ITA750 | UNIT CONTINUOUSLY SIEZES AND THEN RESIEZES THE LINE | Q-101 was not fully saturated, causing the line to be seizedand released continuously. Also pertains to serial number 54571. | ||
| Sony | ITA750 | DIAL TONE OUT OF HANDSET AND SPEAKER PHONE WAS LOW | Q-105 was leaking E to C dropping the voltage on Q-101 andZD-106 in half, from 4.6V to 2.3V. | ||
| Sony | ITA750 | INTERMITTENT ICM WILL NOT OPERATE - SOMETIMES OGM WON'T | Reel sensor won't count intermittently, thus shutting down ICMtape mostly, but also sometimes the OGM. Problem is during manufacturing.Bracket (Part No. 112) somehow was made that when IC PCB No. 906 fits intoNo. 112, there is space for movement between | ||
| Sony | ITA750 | UNIT SWITCHES FROM ANSWER TO ANNOUNCEMENT MODE | After answering one or two calls, unit switches from answer toannouncement mode. Changed reset IC and upc. -HQ COMMENTS: Please check the following:1)Try a new ICM tape.2)Check for intermittence from the ICM Reel Rotation Det. IC-704 intoIC-207/pin 9. | ||
| Sony | ITA750 | NO TONE DIALING AND ALWAYS PICKS UP ON ONE RING | No tone dialing and always picks up on one ring. | ||
| Sony | ITA750 | WHAT IS THE DISCONNECT TIME WHEN USING THE FLASH BUTTON | How long is the line disconnected for when using the flashbutton? -HQ COMMENTS: The line relay is opened for 500msec. | ||
| Sony | ITA750 | IMPEDANCE OF SONY TELEPHONE PRODUCTS | What is the impedance of our phone products? -HQ COMMENTS: All Sony phones fall in the range of 50 to 300 Ohms whenthe phone is off-hook and when DC-loop current is in the range of 15 -120 ma. | ||
| Sony | ITA750 | PART NUMBER CORRECTION - MAIN PCB | The part numbers for Reference 902, Main PCB, for IT-A750/850are reversed on page 43 of the service manual. The part numbers arelisted correctly on page 41, which is the exploded view. -HQ COMMENTS: There are three versions of the service manual -11, - |