Measuring Method And Waveforms; Main Pcb : Test Point - Denon RCD-N8 Service Manual

MEASURING METHOD AND WAVEFORMS

To check the waveforms, the GND (-) probe of the oscilloscope to specified reference voltage.
(Except for lnner SW, TRVSW)
NOTES
Measuring Disc:
(It is better to use wires for extending between the probe and test points.)
• When watching the HF waveform, use the extending wire as short as possible.
• When HF waveform is noisy or cannot discriminate the eye-pattern, replace the Traverse Unit after measuring the lop.
• Point q ～ Q5 is measured with the point shown below.

1. MAIN PCB : TEST POINT

REGION TUNER
E2
E3
JP
C109 C110
DIN
C781
C257 L785
C751
C767
C771 C766
AUX2
Q101
10
C765
C768
C761
C764
Q124
IC701 5
NJM2755 NJM2755
C772 R232
C770
R259 Q103
Q125
R235
C762
DM_VBUS_CONT
WPS C763
VBUS_FLUG1 C124 C125
VBUS_FLUG2
C118
GND_D C117
CX870_SPDIF C114
ACC_MODE
E_REQ C112
R275
E_RXDMOEI
C122
E_TXDMIEO
CP201
E_SPIMOEI
R206
E_SPIMIEO R274
E_SPICLK R105
C111 Q120
/E_SPICS R107 35
E_RESET
R111 5 R208
E_P_CONT a R110 30
R204
IPOD_DET R109
C107 10 A a R205
R122
USB_OE R104 25 R222
C106
/B1/B2 R103 R123
C277 VBUS_CONT1
IC103
VBUS_CONT2 15
20 PCM9211 PCM9211
GND_D
GND_D
+5V_NET
b
+5V_NET b
GND_D
GND_D
C119
+5V_VBUS
R273
+5V_VBUS
R219 R215
R272
S101 R217 C213
H/P_L
Q121 R218 C214
GND_A
H/P_R
R261 IC117
GND_A
R260
CP104 AUX_L
R264 IC105
GND_A
AUX_R
C259
R263
IN ICT OP ADJ FI
C417
C420
IC402
NJM2831F33 NJM2831F33
D405
D401
R422 R421 R428
REGION R434 R428
E2 OPEN 10K
R413
E3 1K 1.6K
c
JP 1K 6.8K
Q406 Q405
CP403
c
R566 R435
R527
R436 C434
C438
C439 R442
12MHz 12MHz
f
DSP BOOT
20
CNVSS f
GND_D
RXD
TXD R445
+3.3V_CPU D406 X401 30
d
RESET
C471
R496
R494 TMS
TDO
R491
TRST#
e
EMLE
MD1
MD0
GND_D
TCK
R461 R466
TDI C551 R456
R464 R465
+3.3V_CPU R482 R458
C469
RESET R457 R460 R468 R467
C470
R459 R462
R405 R406
R471 R481
e
IC405 R479
R1EX24256ASAS0A R1EX24256ASAS0A
Q404
D407
R483 ZD401
LUG101
CN401
Detail A
C122
R105
C111
R107
R111
a
R110
R109
C107
R122
R104
C106
R123
R103
Q5
b
Q3
R273
R272
Q4
S101
R261
R260
R264
C259
CD/TCD-784
CD-R/TCD-R082W
CD-RW/TCD-W082W
SPK
RCH
AUX
L787 AUX1,2 SPK
JACK104 C291
L786 L788
LCH
R731
C755 C756 C176
R230 R225
C225 R226
m
R228 C187 C188
JACK105
AUX1 R229
m L108
C224 C186
C221
C183 C184
C226
C222 L109
C171
C219
3300/50
R233 R732
R231 C180
C178
C227
GPT103
IC110
C177
R234
AZ4580 AZ4580
C228
R224 R223 C220
L110
IC102 C249
IL1117H-5.0ET IL1117H-5.0ET C265
R733
C248
R521
R197
C206 BONDING
R202
C160 C247
D103
C208
D106 3300/50 3300/50 C167 C168
R734 C164
C209
C163
R203
R195
Q122
R196
R201
C207
C204
C155
IC114 R175
k R251
D115
NJM4556AM NJM4556AM D114
C233 L106
C159
C235 C238 C237
R247 C232
R210
C212
R209
R211 C215
k Q118
R171
C230 C151
D109
R194
L102 C274
R238
R162
Q116
R239 R161
R393 R163
45 40 35
R240 R158
C424 R237 R236
R160 C149 IC108
Q113 Q109 R157 50 TAS5508 TAS5508
XTAL102
R153 13.5MHz 13.5MHz
30 R108
R149
55
60
R150
R191
R151
C421 64
R145
R300
1000/16 1000/16 1
C144
10 15
D402
IC104 IC901
KIA78R33F KIA78R33 R396 AZ1117H-1.5 AZ1117H-1.5 j
Q110 Q112 Q114
R254
C270
R133
R143 Q108
Q105
Pb C139
C913
C912 j
R256 D105
C918 D901 R392 R391
R278 C133 IC903
R139
IP4001CR IP4001CR
C977
1
R924 C923 C920
R950
CP901
C924 R941 5
C972
C995
C473 R954
C930
R441
R957
C996
C974
R565 C925
R953
R440
10
C983
R439 L907 C940
R443
R448
C942
R449 C931 R960
R452
L905
R451
C955
C933
C416
GPT101 C937
IC902
C956
d R463
TC94A92FG-301 TC94A92FG-301
R469
20 15 10 5 5
C932
80
C945
25
75
g C934 g D283
30
C921 70
R906 R903 C906 35
65 D285
R904 C907 R908
R901 C910 R911
40
R902 C914 R912
D287
C909 R913 L901
R909
D288
R910
45 50 55 60
C904
h
C901
C922
X901
C967
C911
IC406 16.9344MHz 16.9344MHz
C965 C926 C927
NJM2387ADL3 NJM2387ADL3 R929 R934
R942
h C971 R930
C966
R928
R926
R943 R937
R944
C973 R936 C409 C408
R948
R949 R935
R945 R933
C468 R946
R932
R947
R931 C994
CN408
C117
C114
C112
R275
R274
35
5
30
10
a
25
IC103
15
PCM9211 PCM9211
20
b
C119
R219
R217
IC117
IC105
R263
BONDING
R185 R184
R554
R540
R555
C175
C173 C172
C169
C165 C162
R539
R553
C250
R556
C174
C166
3300/50
R551 R550
C156 +29V
R176 +29V
+29V
L107
C239 GND_AD
GND_AD C157 R174
C287
GND_AD
L105
+29V
C153 R288
+29V C288 R284
+29V R289
GND_AD
R283
GND_AD
R159
R154
R156
C158
R155 GND_AD
R295
R165
CN101
R152
R296
R164
R298
C147 R147
C146
R297 R148
C145
R276
INSW
GND_DRV
SLED- CN902
SLED+ R922
SP-
SP+
INSW
C986 GND_DRV R916
C978
SLED-
SLED+
25
R951 SP-
SP+
D911
20
B
15
C992
C985 R939 CN903
R955 R956
R958 C982 CL_SW
C984 R959 C987
GND_DRV
OP_SW
LOAD-
C988
R940 LOAD+ R923
CL_SW
GND_DRV R921
OP_SW
LOAD-
LOAD+
IC282
KIA7808AF C908
R727
D282
IC283
R728
C199 C285
D103
R206
R203
Q120
R208
R204
Q122
R205
R222
B
k
R215
C213
R218 C214
Q121
R210
C212
R209
R211
k
51
C760
C775
C103
C776
C777
R506 C778
C217
C218
R183
C769
R505
C281
R503
R115
R114
R714
C116
C202 C201 C245
R282
C126
R285
R712
R293
R504
R713
R501
C426
C423
C425
R408
R502
R499
R717
R715
R718
R716
D104
RCD-N8 LPP MAIN PCB
PN : 7020072640000S
R522
Q901
R925
D902
C474
C950
L908
R721
C475
R719 R529 C435
R720
C442
C441
C252
R446 C445
C440
C444
C251
C448
C253
R524
L906
R525
R526
C948
C962
C905
C936
C969
C947 R722
C968
C935
C928 R723
C929
C943
R914
L902
R915
C917
R486
R485
C460
C459
C466
R781
R782
R790
R783
C255
R784 R792
R785
C779
Q781
Q782
C784
C258
R789
L781 R786 C783
DM_VBUS_CONT
L782
R787 R788
L783 R258
WPS
VBUS_FLUG1
VBUS_FLUG2
GND_D
CX870_SPDIF
ACC_MODE
E_REQ
E_RXDMOEI
E_TXDMIEO
E_SPIMOEI
E_SPIMIEO
E_SPICLK
/E_SPICS
E_RESET
E_P_CONT
IPOD_DET
USB_OE
/B1/B2
VBUS_CONT1
VBUS_CONT2
GND_D
R735
GND_D
+5V_NET
+5V_NET
GND_D
GND_D
+5V_VBUS
+5V_VBUS R761
R762
H/P_L
GND_A
H/P_R
R736
GND_A
AUX_L
GND_A
AUX_R
R737
C418
R407
C419
R489
R453
DSP BOOT
R454
CNVSS
GND_D
RXD
TXD
+3.3V_CPU
RESET
TMS
TDO
R492
TRST#
EMLE
MD1
R490
MD0
R493
GND_D
TCK R497
TDI
+3.3V_CPU
RESET
R495
R498
C462 C458
C463 C457
C464 C456
C279
C276
C461