29
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
9.1.3.
Check Playback
9.1.3.1.
Base Unit
Cross Reference:
Power Supply Circuit/Reset Circuit
Note:
Flash Memory is IC601.
BBIC is IC1.
(*1) Refer to
9.1.4.
Check Battery Charge
9.1.4.1.
Base Unit
Cross Reference:
9.1.4.2.
Handset
Cross Reference:
9.1.4.3.
Charger Unit
Cross Reference:
Check VDDC (1.2 V): Test Point [VDDC]
OK
Check
Power Supply Circuit.
Check output of BBIC (Pin 29, 31).
OK
Check BBIC and Flash Memory.
Check Speaker and its surroundings.
NO
NO
Check
Charge Circuit
of Base Unit.
Check Handset.
Plug in the AC Power source.
Charge Handset on Base Unit.
Is the voltage of two charge contacts about
3 V or more?
OK
NO
Check Charge Contacts at
Base Unit from mechanical point of view.
YE
S
Is BBIC (IC1: 34) high at charge state?
Check
Charge Circuit
.
Check
Power
of Handset.
Is
Check Power
OK?
NO
NO
YES
Check
Charge Circuit
of Charger Unit.
Check Handset.
Plug in the AC Power source.
Charge Handset on Charger Unit.
Is the voltage of two charge contacts about
3 V or more?
OK
NO
Check Charge Contacts at Charger Unit
from mechanical point of view.
YE
S
Содержание KX-TGC220AL
Страница 10: ...10 KX TGC220 KX TGC222 KX TGC223 KX TGCA20 4 3 Block Diagram Base Unit_RF Part RXp RXn ANT1 TXp TXn ...
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