27
KX-TG3661JXM/KX-TG3662JXM/KX-TG3668JXM/KX-TG3669JXM/KX-TGA365JXM
10.1.4. Check Playback
Cross Reference:
Power Supply Circuit
(P.11)
Signal Route
(P.17)
Note:
Flash-ROM is IC13.
BBIC(DSP) is IC9.
SP-AMP is IC7.
Base Unit
Check BB3.0V of BBIC.
YES
YES
Check VBAT2 voltage and
Power Supply Circuit.
Check output signal from BBIC (DSP) Pin 110.
Check BBIC (DSP) and Flash ROM.
NO
YES
Check output signal of SP-AMP (IC7) Pin 5, 8.
Check SP-AMP circuit block. (
Signal Route
)
Check Speaker.
NO
NO
Cordless Handset
Check VDD (+2.5V) of BBIC (IC1 Pin 2).
YES
YES
Check VBAT voltage .
Check VDD (+2.5V) of BBIC (IC1 Pin 2).
Check BBIC (DSP) .
NO
YES
Check signal at L420, L421
When the signal doesn't pass, it replaces a part.
Check Speaker.
NO
NO