Measuring Method And Waveforms; Test Point - Denon RCD-N9 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)
Caution
Measuring Disc：
（It is the better way to use an extension wire between the test point and the probe.）
• 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.

TEST POINT

MAIN PCB：Bside
WF23
R345
R346
R276
R277
R200
R203
R347
R348
R205
R212
R280
R201
R202
1.IOS_ACK
2.FRONT_USB_SW
3.VBUS_FLAG1
4.U_PWR1
5.E_1.2V_CONT
6.E_1.8V_CONT
7.E_2.5V_CONT
8.E_3.3V_CONT
9.USB_OE
10.DM_VBUS_CONT
11.E_REQ
12.E_SPDIF
13.E_SPICS
14.E_SPICLK
15.E_SPIMIEO
16.E_SPIMOEI
17.E_RST
18.DGND
19.DGND
20.DGND
21.DGND
22.E_MCLK
23.E_LRCK
24.E_SCLK
25.E_DATA
CD PCB：Aside
CD/TCD-784
CD-R/TCD-R082W
CD-RW/TCD-W082W
PF12
1.LED_RED
2.KEY3
3.LED_WHITE
4.+3.3V_CPU
5.NFC_ACK
6.REMOTE
7.LED_ORANGE
8.+3.3V_OLED
9.KEY2
10.A+5V
11.KEY1
12.+16V_OLED
13.D7
14.D5
15.DGND
16.D3
17.D6
18.D1
19.D4
20.EL_RD
21.D2
22.DGND
23.D0
24.EL_DC
25.EL_PW
26.EL_RST
27.EL_CS
C283
R272 R267
IC28
PF60
L214
R270
R269
R840 C843
IC81
C845
C896 C837
R866
R839
R838
R867
C852 R854
R802
C817
R803
R841
C838
C835
R855
R868
IP4001CRLTF
R800
CN80
C889
IC80
LMSW
MGND
Q0 C818
SLED-
C840
R870
SLED+
C848
SPINDLE-
C898
C
SPINDLE+ R872
C847 C893
R871
R869
D801
C890
CN82
C844
CLSW
o C833
MGND
OPSW D803
D802
D800
LOAD-
LOAD+ L801
Q1
C897
C832
JW80 C806 C891
C807
C869
C825
C824
CWE5202080A
Q2
CN81
Pb
B
IC24
C372
R435
IC23
R436
C336
IC25
C294 C266
C410
R445
R443
R423
R351
R350
R349 R444
R469
R424
R467
R368
R466
R442
R367
R465
R366
R243
R354
IC22 R344
R365
X201
C285
IC
C819
R847 CUP12677Z MP
R849
R807
R809
C868
R817 R808
R812 R848
R831
C862
C805
C871
C881
R837
R811
C823 R801
R813
R844
C899 R832
C888
R818
C900
R829
C849
C855
C802
C822
C901 C865 C809 C830
C872
C875
C874
C856
C836 VC
C853
C876
C821
AGND IC83
RFO
TC94A92FG
C878
C854
C895 FEI R845
TEI
C804
C880
C820 R805
C866
C867
C861
R842
R852
R851 R819 C859
C864
C858
C863 R828
R830
C857
R850 R827
R843
R826
C812
C877 D806 R825
R804
C894 L800
L803
C892
WF81
FROM PICK_UP
C850 C808 BARCODE LABEL
42
Q3
Q4
C353
C301
C265
Q5
R379 R380
i
ICT ADJ-1 ADJ-2
RP
DGND
q
R815
R864
A
R806
R816
C831
C886
w
IC84
e
y
JK80
u
L802
r
WF80
t