MEASURING METHOD AND WAVEFORMS
It is recommended to use extension wires between the probe and test points.
1. DIGITAL PCB test point
To check waveforms for the board, connect the GND (-) probe of the oscilloscope to the "Vref" point.
• For points
q
to
Q5
, take measurements at the points shown in the diagram below.
DIGITAL PCB : Aside
q
[R736] : LRCK/DBACK
y
[R517] : MCK
Q1
[R295] : DATAR
w
[R735] : PBCK
u
[R514] : BCK
Q2
[R293] : WCK/DSDR
e
[R737] : PDATA/DSDL
i
[R515] : LRCK
Q3
[R292] : DSDL
r
[R750] : MCK
o
[R516] : DATA
Q4
[R290] : PBCK
t
[R738] : DSDR
Q0
[R294] : DATAL
Q5
[R291] : DBCK
G
OUT
VCC
G
OUT
VCC
BE
OUT
VCC
G
A
1
19
W
18
2
1
19
18
2
1
19
TOP
1
10
1
10
TOP
A
16
T
A
1
16
1
7
TOP
1
12
220X123
63301020610AS
8U-310206
BLUE
RED
BROWN
Z101
D591
K501
K502
K503
K504
Z591
Q127
U591
K591
K592
S101
N108
N701
N702
L201
R200
R201
R202R203
C201
C206
N201
N101
N102
N103
N105
N106
N109
N110
N111
R210
R211
R212
R213
R214
R215
R216
R217
R218
R219
R220
R221
U102
R222
U103
R223
U104
R224
R226
R227
R228
R229
R230
R231
R232
R233
R234
U501
U502
C202
C203
C204
R240
C205
R241
C207
C208
R244
U701
C209
R245
R246
D592
R248
R249
C210
C211
C212
C213
C214
C215
C216 C217
R253
C218
R254
C219
R255
R256
R257
R259
C220
R260
R261
R262
R263
C229
R266
R267
R268
R269
C230
R271
R272
R273
R274
R275
R276
N202
R277
N203
R278
N204
R279
N205
R280
R281
R282
R283
R284
R285
R286
R287
R288
R289
R290
R291
C256
R292
C257
R293
C258
R294
R295
R296
Q103
R297
R298
R299
Q106
Q107
Q108
C260
Q109
D201
D202
D203
C263
C266
Q110
Q111
Q112
Q113
Q114
L101
Q115
L102
Q116
L103
Q117
L104
Q118
L105
Q119
L106
L107
Q120
Q121
Q702
Q126
Q703
Q704
Q129
Q132
Q139
L702
L703
B101
Q140
Q141
Q144
Q145
Q146
R102
R107
R108
R301
R110
R113
R114
R115
R116
R117
R118
R501
R119
R502
R503
R504
R505
R506
R507
R120
R508
R121
R509
R122
R123
R124
R125
R126
R703
R127
R704
R128
R510
R705
R129
R511
R706
R512
R707
R513
R708
R514
R709
R515
U201
U202
R516
R517
R130
R518
R131
R519
R901
U206
R132
R902
R133
R903
R710
R134
U208
R711
R135
U209
R905
R136
R713
R137
R907
R714
R138
R520
R715
R139
R521
R522
R717
R523
R718
R524
U210
R719
C101
R525
U211
C102
R526
U212
C103
R527
C104
R140
R528
C105
R141
R529
C106
R142
R143
C107
R720
C108
R144
C109
R145
R722
R146
R723
R147
R724
R148
R530
R725
Q591
R149
R531
R726
R532
R533
C110
X101
C111
C112
R150
C308
C115
R151
C309
C116
R152
C117
R153
C118
C119
C501
R155
R156
C502
C503
R158
R734
C310
R735
R159
C311
C505
R736
R737
C507
R738
C120
C508
R739
L591
C315
C509
L592
C316
L593
C123
C317
L594
R160
C124
C125
R161
R162
C126
C703
R163
C127
R740
R164
C510
C705
R741
R165
R742
R166
C707
R743
R167
C708
R168
C320
R745
R169
C515
C321
C709
R746
C516
R747
C517
C323
R748
C130
C518
C324
C131
C519
C325
C132
C326
C133
C327
C710
C134
R170
C328
C711
R171
C135
C329
C136
R172
C713
R173
C714
R750
R174
C520
R175
C521
R751
C716
C522
R176
C717
R177
C523
C718
N104
R178
C524
C330
R755
C525
R179
C331
R756
C526
C332
C527
C333
C528
C334
C141
C529
C335
C142
C336
C143
C337
C720
R180
C144
C338
R181
C145
C339
C722
R182
C146
R183
C147
R184
C530
R185
C531
C532
R187
C533
R188
C534
C535
C536
C537
C154
C155
R191
R192
C156
C157
C158
R194
C159
R195
R196
R774
R775
R778
D101
D102
C162
D103
C163
D104
C164
D105
C165
D106
C166
D107
C167 C168
C169
R591
R592
C170
C172
C173
C174
D501
D502
L202
L203
D503
L204
D504
L205
D701
D702
D703
L212
L213
L214
L215
L216
L217
L218
L219
C770
C771
L220
B201
B202
B203
B205
C591
C592
R205
R207
R209
L206
L207
L208
L209
1
1 2 543
9
8
7
6
15
14
12
13
11
10
Voltage Reference
41
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