Panasonic KX-TG4221N, Руководство по обслуживанию

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KX-TG4221N/KX-TG4222N/KX-TG4223N/KX-TG313SK/KX-TG4224N/KX-TG4225N/KX-TGA421N
10.1.3. Check Playback
10.1.3.1. Base Unit
Cross Reference:
Power Supply Circuit/Reset Circuit (P.13)
Note:
Flash Memory is IC601.
BBIC is IC1.
(*1) Refer to Circuit Board (Base Unit_Main) (P.69).
10.1.4. Check Battery Charge
10.1.4.1. Base Unit
Cross Reference:
Charge Circuit (P.14)
10.1.4.2. Handset
Cross Reference:
Check Power (P.32)
Charge Circuit (P.22)
10.1.4.3. Charger Unit
Cross Reference:
Charge Circuit (P.22)
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 Char g e Circuit of B as e Unit.
Check H a nd s et.
Pl u g in the AC Power s o u rce.
Ch a rge H a nd s et on B as e Unit.
I s the volt a ge of two ch a rge cont a ct s ab o u t
3 V or more?
OK
NO
Check Ch a rge Cont a ct s a t
B as e Unit from mech a nic a l point of view.
YE S
Is BBIC (IC5: 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 Ch a rger Unit.
Check H a nd s et.
Pl u g in the AC Power s o u rce.
Ch a rge H a nd s et on Ch a rger Unit.
I s the volt a ge of two ch a rge cont a ct s ab o u t
3 V or more?
OK
NO
Check Ch a rge Cont a ct s a t Ch a rger Unit
from mech a nic a l point of view.
YE S