11
11
10
10
9
9
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
A
A
B
B
C
C
D
D
E
E
F
F
G
G
H
H
I
I
J
J
K
K
L
L
M
M
N
N
O
O
P
P
Q
Q
Product
.
Date:
Filename:
PCB#
M648V08sch.sch2002
YBA200-2
Fri May 07, 2010
M648
of
Sheet
Rev:
2
2
V08
Product
.
Date:
Filename:
PCB#
M648V08sch.sch2002
YBA200-2
Fri May 07, 2010
M648
of
Sheet
Rev:
2
2
V08
GND
LV1
HI2
LV2
+565V
-
4007
D23
D22
4007
+560V
BLK
+380V
+15V
HI1
-BIAS
LV2
GND
4007
D25
+
RED
GND
-15V
+15V
GND
D24
4007
R44
1/2W
18R
.
120 VAC
GND
LV1
HI1
3682
W39
RED
Standby
-15V
3682
W27.
WHT
PRE1
IEC_RECT
250V
C23
4N7
275V
C22
22N
6.3 VAC
3682
W9
GRY
LoV
3682
W11
GRN
FIL
3682
W8
YEL
0V
420 VAC
3682
W6
RED
HiV
3682
W5
RED
HiV
R41
1/8W
FLMP
220R0
R42
1/8W
FLMP
220R0
R127
2486
T1.5
R126
2486
T1.5
D6
HER508
HER508
D7
D8
HER508
HER508
D5
C25
25V
470U
C26
25V
470U
R48
2.0W
150K
10MM
R49
2.0W
150K
10MM
C33
350v
470U
R46
2.0W
150K
10MM
R47
2.0W
150K
10MM
C32
350v
470U
C28
100V
100N
GND
R104
2.0W
150K
10MM
C61
350V
22U
R103
2.0W
150K
10MM
C58
350V
22U
TO FAN
W20:A
2
R43
1/2W
18R
.
2X_TRIODE_HCT
V1:C
{Voltage}
R93
1/2W
8K2
.
250V
C63
220N
250V
C60
10N
D16
1N5262B
0W5
51V0
D15
1N5262B
0W5
51V0
D11
1N5262B
0W5
51V0
D12
1N5262B
0W5
51V0
D13
1N5262B
0W5
51V0
R94
1/4W
.
4K7
4007
D19
C56
100V
100N
P9
4520
M
Lin
10K
Bias
-78V
S15
DPDT Switch
W22
GRN
GND
16AWG
PENTODE
V4:B
{Voltage}
C24
25V
470U
C27
25V
470U
PENTODE
V6:B
{Voltage}
PENTODE
V7:B
{Voltage}
C29
100V
100N
R101
1.0W
.
10K0
C72
450V
10U
2X_TRIODE_HCT
V2:C
{Voltage}
W20:B
2
R123
1.0W
.
10K0
R102
1.0W
.
10K0
D14
1N5262B
0W5
51V0
R92
1/2W
8K2
.
250V
C51
220N
R45
1/2W
18R
.
R58
1/2W
.
8K2
350V
C53
22U
160V
C52
10U
R99
1/4W
33K
.
3682
W4
BLK
PRI
3682
W3
WHT
LINE
16 VAC
CH1333
PR1
3682
W38
RED
Standby
+267V
FUSE
FUSE
F1
{C_Type}
PR2
4007
D1
3682
W10
GRN
FIL
16 VAC
D4
4007
4007
D3
3682
W2
BLK
LINE
3682
W1
BLK
PRI
3682
W7
GRY
LoV
FAN1
FAN
R121
1/4W
FLMP
1R
C30
63V
10U
IN
REF
OUT
6872
U3
MC7815CT
TO220
Function
{Watts}
C38
350V
22U
3682
W26.
BLK
PRE2
TO STANDBY
SWITCH
C57
100V
100N
8
3
4
5
6
7
9
2
1
T1
1327(E)
GRN
GRN
YEL
GRY
RED
GRY
RED
BLK
{Description}
BLK
D2
4007
PENTODE
V5:B
{Voltage}
C62
350V
22U
IN
REF
OUT
MC7915CT
TO220
Function
6871
{Watts}
U2
C31
63V
10U
2X_TRIODE_HCT
V3:C
{Voltage}
C59
25V
470U
R56
10.W
.
910R
R122
1.0W
.
10K0
*For 230VAC use CH1333E transformer
*Testpoints TP1 - 4
Set to 75mV +/- 10mV
*Decoupling caps placed across
U1's power rails.
