Kurzweil K2600 Series Service Manual
7-16
Power Supply Board
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
A
B
C
D
A
B
C
D
1
JP1
GND JOIN
1
2
J107
AUDIO POWER
2
+5V
5
--15V
3
AGND
1
DGND
4
+15V
J108
SCANNER POWER
2
+5V
5
--12V
3
AGND
1
DGND
4
+12V
J101
SYSTEM SECONDARY
4
5
6
3
2
1
J102
HDD SECONDARY
2
1
J104
BACKLIGHT SUPPLY
1
2
3
J106
HDD SUPPLY
1
2
3
4
J103
FAN SUPPLY
2
1
Q5
PN2222
B
C
E
Q3
PN2222
B
C
E
Q6
PN2222
B
C
E
VR4
LM7912
1
GND
2
IN
3
OUT
VR2
LM7915
1
GND
2
IN
3
OUT
VR5
LM7805
2
GND
1
IN
3
OUT
VR7
LM7805
2
GND
1
IN
3
OUT
VR3
LM7812
2
GND
1
IN
3
OUT
VR1
LM7815
2
GND
1
IN
3
OUT
VR6
KA78T12
2
GND
1
IN
3
OUT
D6
1N4002
12
D7
1N4002
12
D5
1N4002
12
D4
1N4002
12
-+
AC
AC
D1
KBU04
1
23
4
J105
CPU DC POWER
4
+3V
5
+3V+SNS
6
+5V
1
DGND1
2
DGND2
3
DGNDSNS
7
+5V+SNS
8
POWEROK
D2
1N4001
21
D11
1N4001
21
+
-
U1
TL074
10
9
411
8
+
-
U1
TL074
3
2
1
+
-
U1
TL074
12
13
14
+
-
U1
TL074
5
6
7
R42
2K
12
R10
2K
12
R22
10.0K
12
R23
4.7K
12
R14
4.7K
12
R7
1K
12
R25
165K 1%
12
R19
84.5K 1%
12
R9
100K
12
3
R37
200
12
R33
200
12
R26
357 1%
12
R41
3k
12
R27
150
12
R24
3k
12
R20
15k
12
R34
510
12
R3
10.0K 1%
12
R5
1K
12
R15
10.0K 1%
12
R32
330
12
R39
10
12
R38
10
12
D9
1N4001
12
D10
1N5231B
12
D8
1N5234B
12
R36
10
12
R40
10
12
R31
10
12
R29
499 1%
12
R21
15k
12
R35
1k
12
R30
15k
12
R2
10.0K 1%
12
R1
10.0K 1%
12
R4
10.0K 1%
12
R16
10.0K 1%
12
R12
10.0K 1%
12
R11
10.0K 1%
12
R28
100
12
R18
1K
12
R6
1K
12
R13
4.7K
12
R8
4.7K
12
R17
100
12
Q1 PN2907
B
EC
Q4
IRFZ30
D
G
S
Q2
IRFZ30
D
G
S
C3
0.1uF
12
C2
0.1uF
12
C1
0.1uF
12
C7
0.1uF
12
C8
0.1uF
12
C19
0.1uF
12
C18
0.1uF
12
C15
0.1uF
12
C14
0.1uF
12
C5
0.1uF
12
C4
0.1uF
12
C25
470pF
12
C13
470pF
12
C28
0.1uF
12
C22
0.1uF
12
+
C23
220uF 16V
12
+
C26
100uF 16V
12
+
C30
100uF 16V
12
+
C6
220uF 16V
12
+
C10
33000uF 16V
12
+
C16
100uF 25V
12
+
C17
100uF 25V
12
+
C20
100uF 16V
12
+
C21
100uF 16V
12
+
C12
2200uF / 35V
12
+
C11
2200uF / 35V
12
+
C27
100uF 16V
12
+
C9
4700uF / 25V
12
+
C24
220uF,6.3V
12
+
C29
100uF,6.3V
12
D3
MBR1535CT
K
A1
A2
YOUNG CHANG CO., LTD.
of Young Chang Co., Ltd. is prohibited.
Reproduction without the express written consent
Filename:
Doc:
Mfg:
Eng:
Sht
By:
Date:
of
Rev:
K2600
Power Supply
Mike Richmond
021210 RCV0
021210C0 9/16/99
01 01
HD+12
HD+12
HD+12
+5V+SNS
DGNDSNS
HD+12
HD+12
+3V+SNS
DGNDSNS
RCV0: Added D11, 16-Sept-99, M Richmond
RBV0: Added R42, 8-July-99, M Richmond
16VAC
*
+5
DGND
HDGND
FANV+
UNREG
HDGND
BLV+
*
NOTE : Indicates components that are mounted to the heatsink.
All resistors are 5% 1/8W unless specified otherwise.
#
Indicates components needed for operating without an external load.
HD+12
HDGND
5.1V
3.30V
5.0V
*
*
*
*
*
(6.8V)
7VAC
17VAC
6.2V
#
#
#
##
*
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