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31
KX-TG9581B/KX-TG9582B/KX-TGA950B
9.1.1.1.2.
Battery starting
Note:
(P.7) for part number and supply voltage of AC adaptor.
Cross Reference:
Power Supply Circuit
Is the input voltage of Battery “+” about 2.
3
5V?
Check C923, C953, R971, R972, C952, F901.
Is the output voltage of IC904(1)High?
Is the collector of Q606 about 1.8V?
Check Master_BBIC(IC601) and Flash_Memory
(IC603) and EEPROM(IC604)
Does BBIC(IC601:U11) oscillate at 10.368MHz?
Is BBIC(IC601:B8) High?
Check R702, Q701, C703 and Slave_BBIC(IC701:24).
YES
YES
YES
NO
NO
YES
Is the input voltage of IC906(5)more than 2.35V?
YES
Is the output voltage of IC906(1)more than 2.35V?
YES
NO
Check IC904, R921, R915, R914, C922, R969, Q956
R916, R967, C953, R971, R972, C952
NO
NO
Check Q606, C612, R613, C613 and Master_BBIC
(IC601:M3)
NO
Check L902, IC905, R903, C914, R910, R917,
C918 and Master_BBIC(IC601:T2,U1,U2)
Is the output voltage of IC905(3) about 3.4V?
NO
Check C620, R612, Q607, R617, R618, C621 and
Master_BBIC(IC601:T10,V11)
Check battery
YES
Check IC906, C924.
NO
YES
Is the collector of Q607 about 3.0V?
Is the collector of Q701 about 1.8V?
Check Master_BBIC(IC601) and X601.
NO
YES
Содержание KX-TGA950B
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