Low Voltage Power Supply Board - Panasonic KX-FLB852CX Service Manual

14.8. LOW VOLTAGE POWER SUPPLY BOARD

CN1
F1
L
1
2
N
5msec/div 50V/div
Max 166.667V
Min 139.583V
154.0V
10µsec /div 5V /div
18.40V
F2
FG
R6
100
L5
D4
Q1
D35
R8
10µsec /div 1V /div
Max 20.0000V
Max 4.33333V
Min -2.29167V
Min 3.50000V
4.20V
TH2
L1 L2
TH1
D2
R2 R3 R5 R4
10K 10K 10K 10K
R18 D6
R7
10µsec /div 10V /div
10
31.4V
VH NC Vcc Vout
CS FB Is GND
10µsec /div 0.5V /div
Max 2.50000V
Min 1.12500V
2.400V
C
R280
Q301
1K
Q274
D
KX-FLB852 : LOW VOLTAGE POWER SUPPLY BOARD (1/2)
345
KX-FLB852CX / KX-FLB852CXS
D10
D12
C30
R9
100
D3
Max 41.6667V
Min 16.250V 5msec /div 20V
31.4V
C275
Q271
Q272
(1)
(2)
(3)
(4)
(5)
/div
Max 44.1667V
Min -45.8333V
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(12)
(13)