TOSHIBA FTX988
Instrukcja Serwisowa

2. The bell does not ring & page does not ring.

When the TALK key of handset is pressed. Does. The handset connected with Base.

NG

See part 3

OK When the PAGE key of BS is pressed . Dose the PIN11 of BU4 change from high to low. and PIN68 has not change.

NG

Check PAGE key and BR7.

OK Press PAGE key of HS. If there is a audio signal on PIN17 of BU6.

NG

Check the connected between BU4 and BU5.

OK Press PAGE key of BS. If there is a audio signal on PIN17 of HU6

NG

Check the connected between HU4 and HU5

OK Check the PIN of HD10 if there is a pulse signal. NG Check HQ4

OK The Buzzer is defective

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