Panasonic DMC-FT1EB, Service Manual

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Note when repairing PCB
In this unit, battery door lock detection switch is mounted on Main PCB so as to secure the waterproof performance.
Be careful of following points.
(1)Before removing Main PCB, be sure to cancel Initial setting.
If the unit is turned on while Battery Door is not locked correctly, the following warning display as right figure appears on LCD,
and
this unit cannot be operated.
When Main PCB was removed, this battery door lock detection switch becomes to status of "Battery Door: OPEN".
Thus battery door lock detection switch does not operate correctly.
And even if the unit is turned on, this unit cannot be operated.
When initial setting was cancelled, battery door lock detection switch is ignored and the unit always be in status of
"Battery Door: CLOSE" and the unit can be operated even if Main PCB is removed.
CAUTION-1. (When servicing FLASH PCB)
1. Be sure to discharge the capacitor on FLASH PCB.
Refer to “HOW TO DISCHARGE THE CAPACITOR ON FLASH PCB”.
The capacitor voltage is not lowered soon even if the AC Cord is unplugged or the battery is removed.
2. Be careful of the high voltage circuit on FLASH PCB.
3. DO NOT allow other parts to touch the high voltage circuit on FLASH PCB.