Philco PH-919 Service Manual page 49

7.Power Part
1
D
!
AC 80~ 265V
BCN1
2
1
C
B
A
1
47
2 3
!
!
!
BCN5 02
BC3
POW SW1
D1 1N4007
F1 222M
T1.6A L250V 220V
L1
D2 1N4007
!
VR1
471
BC4
222M
1N4007
D3
BC1
BC2
0.1uF/275v
0.1uF/275V
!
D4
1N4007
BC5
222M
R5
1
300
L2
BEAD
U1
1 8
VCC Drain
2 7
GND NC
3 6
RC Source
R2 R1 5K1
4 5
6K8 REG AUX
C1 C2 TEA1523P R6
331 473
C4
C6
474
100uF/50V
2 3
4 5
C10
220UF/16V
R9
C11 100P 4K7
C8 R7
103/1KV 27K/2W HER105
C9 D8
T1
68uF/450v
ZD1
5V6
10
8
D7 PH-33D
11
D5 HER108
C12
12
100P
*
4 10uH
L4
D9 BYV27-200
* 17
*
C16
*
D6
470uF/25V
2 13
10uH
PH-33D D10 L5
* SR560
7
C20
R8 75K
C13 100P
1000uF/16V
18
10uH
L6
* D11
C17
14
470UF/25V
C14 100P
16
D12 10uH
* L7
!
C22
330uF/25V
!
U2
+5V
R10
C3
470
R11
473 3K
SFH615AGR
R12
10k
C5
3
U3 474
1
TL431
2
R13
10k
BC6
222/250V~
!
4 5
6 7
CN1
C5V 1
-21V
DGND 2
3
4
5
CN2
L3
+5V 1
BEAD
SGND 2
C7
SGND 3
100uF/50v C24
C12V 4
470uF/16V
+12V
CN3
C18
MIC1 1
470uF/25V
MIC2 2
D13 D14
+5V D3.6V AGNG 3
+12V 4
-12V 5
C21
C15 DGND 6
1000uF/16V 104
DGND 7
S12V +5V 8
9
D3.6V 10
C19
470uF/25V
-12V
CN5
C23
330uF/25V
MIC1 1
MIC2 2
AGND 3
-12V 4
+12V 5
PIN4
U4
1085
+5V D3.6V
3 2
3 IN 2 OUT
CN4
+5V 1
R14
AGND 2
AGND 3
3.9K
+12V 4
R15 -12V 5
AGND 6
750
AGND 7
NO USE!
+5V 8
+5V 9
D3.6V 10
NOTE 1：USER D13、D14，NO USER U4、R14、R15。
NOTE2：USER U4、R14、R15，NO USER D13、D14。
COSMIC DIGITAL TECHNOLOGY CO.,LTD
6 7
8
D
C5V
DGND
-21V
F(-)
F(+)
S+5V
SGND
SGND
S+12V
MIC1
MIC2
AGND
C
+12V
-12V
DGND
DGND
+5V
+3.6V
MIC1
MIC2
AGND
-12V
+12V
B
+5V
AGND
AGND
+12V
-12V
AGND
AGND
+5V
+5V
D3.6V
A
8
47