User's Manual

43B
Service Information
9-6
C202
100nF
C242
1nF
C204
120pF
C296
100nF
R233
10k
POS_B [5]
C253
22nF
+5VA
VNHB
C252
15nF
R240
215k
R290
56.2k
MIDADC_B [3]
R257
287E
TP256
R203
1.0Meg
R289
10E
R259
100E
C236
4.7nF
-3V3A
R202
487k
C290
100nF
220K
X100B
Input_block
7
5
6
1
PROBE
IN
PTC
COMMON
R297
10E
R251
100k
N202
LM7301IMX
3
2
7
4
6
+
-
V+
V-
out
+3V3A
C248
10nF
C232
4.7pF
N201
OQ0258HL/N1
OQ0258 ATTIC
16
15
19
21
35
40
41
37
10
13
38
12
39
42
2
36
43
8
9
33
34
5
1
32
7
3
30
6
4
44
24
23
27
28
29
31
25 26
14
17
18
20
22
11
HF1
GNDHF1
HF2
HF3
FB0
FB3
FB4
FB1
DCBIAS
HFO
FB2
GNDHF0
FBC
LF
GPROT
CALSIG
PROTGND
VATTP3V3
VATTN3V3
VAMPPSUP
GNDREF
CERR2
POS
VAMPN3V3
VP5V
GNDDIG
VDIGN3V3
VDIGN3V3
CERR1
OFFSET
DACTEST
ADDRESS
ADC
MIDAD C
TRIGGER
TRACEROT
SDAT SCLK
SWHF0
SWHF1
SWHF2
GNDHF2
GNDHF3
GNDATT
2
C256
1nF
R239
261k
C282
100nF
K271C
8
9
7
R241
215k
R237
261k
R260
51.1k
C286
100nF
TP252
AC/DC
R201
487k
C288
100nF
R242
147k
R298
10E
C246
33nF
K271B 3
4
2
TP254
TP251
C-ASIC
C231
0.68pF
C289
100nF
C201
22nF
R236
100E
R254
681k
C292
10nF
R232
100k
R238
261k
R252
100k
CHANNEL B
C206
4.7nF
R234
1.0k
OFFSET_B [5]
L283
47uH
R258
287E
R204
26.1k
C298
10nF
SDAT [1,4,5]
R294
100k
C233
47pF
C293
10nF
R246
1.0Meg
TRACEROT [1,4]
R211
10Meg
R255
178k
C284
100nF
PROBEB [5]
L281
47uH
R288
10E
C259
100pF
C297
100nF
R256
100k
C283
22uF
C262
4.7pF
VPHB
R286
10E
R295
215k
SCLK [1,4,5]
C261
100nF
C234
470pF
C295
Not_placed
C287
22uF
R231
1.0Meg
V201
BC848CLT1
2
3
1
R243
909k
C291
100nF
VNHB
REFN [1,4]
R282
10E
R293
46.4k
R209
2.15k
C207
470pF
C258
150pF
C294
100nF
R213
10Meg
R206
400E
R212
10Meg
TP253
R214
10Meg
C281
22uF
L282
47uH
R296
1.0Meg
REFATT[1,4]
V200
BC848CLT1
2
3
1
R284
10E
R291
56.2k
TRIG_B [4]
ADC_B [3]
C211
4.7pF
R253
681k
VPHB
DACTESTB [7]
R261
100k
R292
56.2k
Figure 9-2. Circuit Diagram 2, Channel 2 Circuit