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1
Check 4: Is VSENS OK?
A
CN1901
HOST I/F
VD8
VDD5
B
STANBY
NRES
C
<Check> Check the voltage at the "VSENS" test point while the power is on.
Check the "DGND1" test point at the reference.
No.
Check point
1
VSENS - DGND1
Side A
D
E
F
VSENS
36
1
2
R1004
R1007
Voltage divider
IC1004
VCC33
regulator
IC1953
VCC12
1.2 V output
regulator
Fig 4.1: Power supply configuration and VSENS
Module No.
ALL
Fig 4.2: VSENS check point
CX-3311
2
3
IC1501
VSENS
DV5
Specification value Unit
0.95 - 1.07
V
* When VD8 = 8.0 ± 0.4 V,
the range for VSENS value
DGND1
3
4
4
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