Panasonic KX-TA308 - Page 19

1
2
3
4
D
1
C
B
D
A
FG
D
A
B
C
D1
Q1
BEA2
D15
T1
BEA101
D101
C109
BEA1
1
3
9
11
LIVE
FG
NITTEURAL
F1 L1
NTC1
NTC2
PC2
Q31
D4
IC1
R9
C11
C17
R8
R5
R14
D6
PC1
C7
Q150
PC1
C110
R112
Q101
R17
47
D3
D5
Z1
Z2
R31R32
C31
R35 R34 R33
D33 D32
R38R36
C15 R7
C10
C14
R10
R16
C13
D34
C16
C12
R15
100K
D31
C1 R1
C5
C8
R21
C101
C102
D102
C104
R120VR102
C103
R121
R303
R307
C301
C303
R302
D301
R22R23
R13
R11
PC2
R151
R152
R150
R116
R110
R114
R113
D111
R111
VR101
R153
AL1
CN104
IC101
L101
BEA103
IC301
CN101
R304
R301
CN102
R305
C302
R306
IC304
26V
AC
Detect
GND
5.8V
GND
SIGNAL-
IN
SIGNAL-
OUT
IFB OVP VCC VO GND CLM CT RT SS
+VIN VEE OUT VCC
+VIN VEE OUT VCC
1
2
3
4
5
6
7
KX-TA308 POWER SUPPLY BOARD
16µs
17V 5.4V
1.9V
AC DOWN DETECTION
(SECONDARY)
AC DOWN
DETECTION
(PRIMARY)
FEED BACK CIRCUIT RINGING AMPLIFIER CIRCUIT
CONTROL
VOLTAGE
DETECTION
VOLTAGE
DETECTION
REGULATOR
POWER
AMPLIFIER
BUFFER
16µs
20Hz
10V
20Hz
240V
20Hz
24V
16µs
310V
INRUSH CURRENT PROTECTION
SWITCHING
MOS FET
LINE FILTER
SURGE ABSORBER