Fluke ScopeMeter 123 Service Manual page 161

1 2 3
A
B
BATTERY PACK
BP120: R = 0 Ohm X503
IDENT
1
5
I 4
C T 6
- 3
+ 2
MAX.
R
IDENT TEMP
NTC
SWITCH
D
POWER ADAPTER
Z501
TP501
BNX002 V501 V504
X501
+INPUT
MBRS340 MBRS340
R501
2 1 4
0.1E
C500
1 1u 25V 2 3
E -INPUT
C501
3 NC
180u
TP502
CHARGER
F
R513 R514 R516
26K1 3K16 23K7
G
H
TP591 TP592 TP593
SELMUX0
SELMUX1
SELMUX2
J
BATIDENT
[B5]
BATVOLT
BATTEMP
BATCUR
DACTESTA
[1,D10]
DACTESTB
[2,D10]
DACTESTT
[3,E8]
LCDTEMP1
[4,C7]
C591 C592 C593
K
100n 100n 100n
4 5 6 7
+3V3SADC
R508
10K
BATIDENT
[J3][4,J13]
-30VD
C511
C549
100n
22n
C512
NC R512 C548
100n
NC 2K87 22n
C547
R509
22n
46E4
R504 R506 R507 C509
1E 1E 1E 1u
+3V3GAR
VBAT
[J11]
C554
C506
TP504
1u
47n
11
RCCHA1
10
RCCHA2
TEMP 5
TEMP
TEMPHI 4
TEMPHI
IBATP 9
IBATP
TP503
VBAT 3
VBATMEAS
L501
R503
33uH VBATSUP 60
VBATSUP
10E
C505
MTD5P06E
V503 C503 C504
V506
100n MBRS340 390u 10u
CHAGATE 16
CHAGATE
CHASENSN 14
CHASENSN
CHASENSP 15
CHASENSP
VCHDRIVE 19
VCHDRIVE
R502
VADAPTER 20
VADAPTER
10E
C502 P7VCHA 18
P7VCHA
10u
C507 2
GNDC
100n 13
GNDC
21
GNDC
VBATHIGH 7
VBATHIGH
IMAXCHA 6
IMAXCHA
VADALOW 8
VADALOW
R534
CHARCUR CHARCURR 80
CHARCURR
APWM_BUS 1K47
[4,D1]
C534
100n
TP531
SLOW ADC
[4,I14]
SADC_BUS
D531
74HC4051
11 16
S0 VCC
10 8
S1 GND
9 7
S2 VEE TP536 N531 TP534
6
E LMC7101
3
13 4 (2)
Y0 Z
14 1 (6) SLOWADC
Y1
15 3 (3)
Y2
R532 *
12 5 (4) 2 (7)
Y3
V V 100E
1
Y4
5
Y5 (.) IF N531=NE5230
2
Y6
C532 *
4
Y7
22n
MUX
TP537
R531
SADCLEV
R591 21K5 * For PCB versions < 8:
C594
2K15
100n C531
R532 = 0 Ohm (is a track)
22n
C532 = not present
+3V3A
APWM_BUS
[4,D1]
123
Service Manual
8 9 10
LINEAR SUPPLY
V569
BC869
R580
VBAT
0.33E
TP561
VGARVAL
[4,J14]
TP568 For PCB versions < 8 only
+12VPROG
[4,D16]
+
C581
10u
52 VCOIL
VCOIL
48 FLYBOOST
FLYBOOST
47 SNUB
SNUB
50
GNDD
49 FLYGATE
FLYGATE
55 FLYSENSP
FLYSENSP
54 VSENS
VSENS
N501
59
GNDF
OQ0256
56
GNDF
53
GNDF
P-ASIC
58 -3V3A
M3V3A
17 NC
VBATSUP
57 IMAXFLY
IMAXFLY
51 VOUTHI
VOUTHI
R558
31K6
46
GNDO
44
GNDO
43
COSC
42
GNDO
C553
150p
R535
51K1
R528 C529
34K8 100n
C528
22u
[3,F8]
[3,G8]
+3V3SADC
TP600
C583 R529 R527
100n 261K 147E
TP522 TP521
R605 *
10K
H522 H521
OP906 SFH409
RS232
+3V3GAR
* R605 & R606 not for PCB versions < 8
OPTICAL PORT
9-12
11 12 13
FLYBACK CONVERTER
V567
MBRS340
C565
150u
V561
MBRS340
R570
100K
T552 2 C561
V562
4 150u
MBRS340
5
C555
390u
6 C562
V563
150u
V551 MBRS340
7
BYD77A
1
8 C563
V564
V550 ETD15 150u
MBRS1100
BYD77A
TP551
V555
V554 BYD77A
2SK974
R550
348E
TP552
C551 C552 C550
100n 100n 4n7
R551
0.1E
R559
5K11
1 16
BOUT GND
2 15
AOUT PGND
3 14
+5VA
VC COUT
4
13
COMP ENBL
5
12
SS
VCC
6 11
C606
N/C REF
7 10
100n
INV
N/C
8 9
CT ZD
C607
10n
TLON
[4,D14]
R606 * TP604
6K19
Figure 9-6. Circuit Diagram 5, Power Circuit
14 15 16
TP571
L569
68uH +3V3GAR
[4,B13]
C568
C567
150u
150u
TP572
L562
47uH +5VA
[1,B10] [2,B10]
[3,E1] [4,B8]
C572 TP573
L563 150u
47uH +3V3D
[4,A13] [4,B8]
[4,F1]
C573 TP574
L564 150u
68uH +3V3A
[1,B10] [2,A10]
[3,F1] [4,A13]
C574 TP576
L566 150u
68uH -3V3A
[1,A10] [2,A10]
[3,G1]
C576 TP577
L567 150u
47uH -30VD
[4,C8] [4,C9]
[4,H1] [4,J15]
C564
47u
R554 R552
26K1 10K
VSENS
R553
4K22
+3V3SADC
R563 R564
100K 100K
MAINVAL
[4,J13]
R565 V565 V566
100K BC848 C BC848 C
TP529
TP526
FREQPS
[4,J13]
TP528
R524
PWRONOFF
[4,J13]
100E
TP527
RXD
[4,J13]
TXD
[4,J13]
5
ST8090-2
00-01-24
ST8090-2.WMF