Read Panasonic BL-C1CE / BL-C1E Service Manual online
12
BL-C1CE / BL-C1E
4.1.5.
RTC
Real Time Clock (IC302)
Operating Power Supply: 3.3V (3V battery for back up)
Package: 18 pin SOP
Outline of Operation: Stores Clock Data and supplies 32.768 KHz Clock Signal to CPU (IC101).
Backup Battery provides power when power supply is out.
Package: 18 pin SOP
Outline of Operation: Stores Clock Data and supplies 32.768 KHz Clock Signal to CPU (IC101).
Backup Battery provides power when power supply is out.
Lithium Battery (BAT301)
Output Voltage: 3V
Capacity: 220mAh
Outline of Operation: A backup power supply for Real Time Clock (IC302).
Capacity: 220mAh
Outline of Operation: A backup power supply for Real Time Clock (IC302).
4.1.6.
LED Control Block
LED is controlled by CPU which is mounted on Main Board. Control data is input into LED Control Circuit which is mounted on
Sub Board. (Three color LED is employed.)
Sub Board. (Three color LED is employed.)
LED_R
LED_G
Color of LED
L
L
OFF
L
H
Green
H
L
Red
H
H
Orange
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