Panasonic KX-TGEA20B, Service Manual

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KX-TGE210/KX-TGE212/KX-TGE232/KX-TGE233/KX-TGE234/TGEA20
10.1.3. Check Playback
10.1.3.1. Base Unit
Cross Reference:
Power Supply Circuit/Reset Circuit (P.14)
Note:
Flash Memory is IC601.
BBIC is IC1.
(*1) Refer to
Circuit Board (Base Unit_Main) (P.76).
10.1.4. Check Battery Charge
10.1.4.1. Base Unit
Cross Reference:
Charge Circuit (P.15)
10.1.4.2. Handset
Cross Reference:
Check Power (P.32)
Charge Circuit (P.23)
10.1.4.3. Charger Unit
Cross Reference:
Charge Circuit (P.23)
Check VDD1(1.8V) :Test point (VDD1)
OK
Check Power Supply Circuit.
Check output of BBIC (Pin 41,43).
OK
Check BBIC and Flash Memory.
Check Speaker and its surroundings.
NO
NO
Check Char g e 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.
YES
Is BBIC (IC1: 34) high at charge state? Check Charge Circuit .
Check Power of Handset.
Is Check Power OK?
NO
NO
YES
Check Char g e 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
5.5 V or more?
OK
NO
Check Charge Contacts at Charger Unit
from mechanical point of view.
YES