Panasonic KX-TG4771B - Check Playback

34
KX-TG4771B/KX-TG4772B/KX-TG4773B/KX-TGA470B
10.1.3. Check Playback
10.1.3.1. Base Unit
Cross Reference:
Power Supply Circuit/Reset Circuit (P.12)
Note:
Flash Memory is IC601.
BBIC is IC1.
(*1) Refer to Base Unit (Main) (P.75).
10.1.4. Check Battery Charge
10.1.4.1. Portable
Cross Reference:
Check Power (P.30)
Charge Circuit (P.19)
10.1.4.2. Charger Unit
Cross Reference:
Charge Circuit (P.19)
5) Back to "standby" mode automatically after step 4).
You can hear beep sound which is a confirmation tone.
Note:
(*1) Both Auto Disconnect and CPC don't detect for the first 2 seconds.
(*2) If the "Disable" is selected, even if the parallel-connected telephone is OFF HOOK,
the line isn't disconnected.
Is BBIC (IC1: 34) high at charge state?
Check Charge Circuit.
Check Power of Portable.
Is Check Power OK?
NO
NO
YES
Check Charge Circuit of Charger Unit.
Check Portable.
Plug in the AC Power source.
Charge Portable 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.
YES