Dicas Reparação
Modelo - Chassis ITK300
Pesquisa: ITK300 Enviar Dica Resolvida
Resultados 5
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | ITK300 | UNRELIABLE 20 PPS DIALING | 20 PPS dialing is unreliable. | ||
| Sony | ITK300 | WRONG VALUE FOR R118 IN MANUAL | R118 is shown as 4.7k in manual, but is really 47k in theunit. -HQ COMMENTS: Thanks for the information. | ||
| Sony | ITK300 | TIME INDICATOR NOT WORKING, ONLY COLOR MARKER | Only color marks on indicator tube are illuminated. Checkingvoltages, found pin 14 of IC401 to be 13V. Checked resistance across D401and reading was zero ohm. Further resistance checks found C401 shorted. | ||
| Sony | ITK300 | SIDETONE/VOICE OUTPUT LOW IN AMPLITUDE | Sidetone and voice output low in amplitude. Receiver sectionok, tone dialing ok. Found R116 unsoldered at pin 15 IC101 speech networkchip. | ||
| Sony | ITK300 | MINIMUM TELEPHONE LINE VOLTAGE REQUIRED | What is the minimum telephone line voltage at which the unitswill operate? -HQ COMMENTS: The Speech Network IC (IC302-MC34014P) requires a minimumof 1.5V on Pin 14 in off hook condition. The DC current must be between20ma and 120ma. The amount of curr |