Panasonic KX-TG9581B Service Manual page 31

9.1.1.1.2. Battery starting
Is the input voltage of Battery "+" about 2.35V?
Is the output voltage of IC904(1)High?
Is the input voltage of IC906(5)more than 2.35V?
Is the output voltage of IC906(1)more than 2.35V?
Is the collector of Q606 about 1.8V?
Is the output voltage of IC905(3) about 3.4V?
Is the collector of Q607 about 3.0V?
Is the collector of Q701 about 1.8V?
Does BBIC(IC601:U11) oscillate at 10.368MHz?
Is BBIC(IC601:B8) High?
Check Master_BBIC(IC601) and Flash_Memory
(IC603) and EEPROM(IC604)
Note:
(*1) Refer to Specifications (P.7) for part number and supply voltage of AC adaptor.
Cross Reference:
Power Supply Circuit (P.10)
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
Check battery
NO
Check IC904, R921, R915, R914, C922, R969, Q956
R916, R967, C953, R971, R972, C952
NO
Check C923, C953, R971, R972, C952, F901.
NO
Check IC906, C924.
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)
NO
Check C620, R612, Q607, R617, R618, C621 and
Master_BBIC(IC601:T10,V11)
NO
Check R702, Q701, C703 and Slave_BBIC(IC701:24).
NO
Check Master_BBIC(IC601) and X601.
31
KX-TG9581B/KX-TG9582B/KX-TGA950B