Fluke PM6685 - Page 73

Power Supply, PCB 1, sheet 4(5)
Drawings & Diagrams 8-11
PF
+7V
U+12V
+5V
-5.2V
+5V
U+12V
U+12V
-5.2V
U+12V
U+12V
+12V
+12V
+12V
STAND BY
ON
DISABLE STANDBY
+12V
+12VREG/BATT
LO BATT
+5V
-5.2V
U+12V
+7V
SIGNAL GROUND
SAFETY EARTH
EXT. DC
ON REAR
PANEL
OPTIONAL
FAN
TO BATT
UNIT
DISCONNECT IF
BATTERY OPTION
INSTALLED
To Rubidium
Power
To Rubidium
Power
R55
560
D20
BZX79-B5V6
D8
SB140
R152
220
R1472.2K
+
-
U21B
NE532D
6
5
7
J9
R124
100K
R143
220
12V
+
-
U
_
_
U41
LM2940CT-12
13
2
C63
2.2nF
C84
220uF-50V
R139
220
R128
1.5K
C70
10n
R198
4.7K
J6
R135
220
C10310n
-+
D9
2KBP08
J10
R131
220
K5A
4
8
6
U21C
NE532D
V+
8
V-
4
C106
10n
L9
33uH
J32
Con20
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
D10
SB140
R121
10K
C74
68uF-6.3V
R153
220
D6
1N4003/200
C83
15uF-6.3V
R125
100K
R144
220
R56
390
R149
220
BAV99
D13
TP15
+5V
R156
2.2K
R140
220
C71
10n
C104
10n
R206
5.6K
Q14BC847B
R136
220
R196
120
R53
2.2K
K5B
13
9
11
R129
470
1.25V
+
-
U
_
_
U42
LM317T
3 2
1
R132
220
U40C
HEF4013BT
VCC
14
GND
7
J15
TP16
+15V
S
1D
C1
R
U40A
HEF4013BT
6
5
3
4
2
1
F1
1.6AT
L6
10mH
R154
220
9
99
U39
POWER MODULE
+
6
-
7
+
8
-
9
+
10
+
11
-
13
-
14
PF
12
+DCIN
1
-DCIN
4
-DCIN
5
C64
270uF
J3
Q7
BC807-25
1.25V
REG
U43
LM337T
In
2
Out
3
Adj
1
BAV99
D12
Q5
BCP51
R150
220
R157
6.81K
R122
100K
J7
R141
220
C72
10n
TP23
TP17
-7V
J21
1
2
3
R126
1K
+
-
U21A
NE532D
2
3
1
J16
1
2
3
R137
220
R145
330
J4
L7
10uH
R130
220
S
1D
C1
R
U40B
HEF4013BT
8
9
11
10
12
13
R207
1K
R133
220
R197
120
R146
15K
C65
100n
K5C
1
16
C75
33uF-63V
R54
560
C82
15uF-6.3V
D7
SB140
R151
220
R123
100K
TP21
+12V
J31
R148
16
R142
220
C79
33uF-63V
C73
10n
R155
330
TP22
+7V
C62
2.2nF
J22
1
2
3
R138220
Q17
BC817-25
L8
10uH
Q12
BC847B
R134
220
C35
470n
TP20
Q6
BC847B
R127
1M
C105
6.8u-16V
J5
C76
33uF-63V