Main Board(5) - Panasonic KX-MB2230JT Service Manual

KX-MB2230JT/ KX-MB2270JT/ KX-MB2515JT/ KX-MB2545JT/ KX-MB2575JT/ DP-MB310JT

16.2.5. Main Board(5)

1
+3.3V
A
LVIN
R800 L800
0(1608)
B
LVIN
C
R807
5.1k
D
P12V
LVIN
Q808
R828
Q809
560k
C817
K1u(1608)
E Q810
R833
100k
R834
100k
PWRSW
-
GND
292161-3
F
2
+1.2V
LVIN
R812
+3.3V S3.3V
0(1608)
0(1608)
4.7u R801 Q800
R839
100k
C800
K1u
PWRDWN2
1:2E
+5VD
Q803
+5V
+5VD S5V
0(1608)
R810
L802 4.7u Q802
R817 10k
C830
K1u
S3.3V
Q801
R840
F6.34k
C863
K470p
+12V
R835 10k
1:4D
SHUTDWN
D807
D806
+3.3V
1 2
R837 4.7k
3
CN800
R836 Q814
R846
1
470 3.9k
2
3
1:4D
Q815
3
+1.2V
L801 2.2u R813
0(1608)
+2.5VT
Q805
R814 4.7k
R818 100k
C831 10u/10V
R816 1k
Q804
10k
R815
( )
C812 NC
+24V
P24VA +24VA
Q807
S3.3V
Q806
PWRSW
338
4
+2.5V(SPT)
+5VD
+2.5VT
IC803
R823
3 2
VIN
VOUT1
0(1608)
4
VOUT2
ADJ
1
P24VB +24VB
Q813
S3.3V
Q812
KX-MB2230JT MAIN BOARD (No.5) (1/2)
1/2 2/4
3/4 4/4
5
-1